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Y otro hilo sobre los proyectores DLP basados en el chip de Texas Instruments para 4K.
El hilo de los DLP 4K (Acer, Optoma, etc)
- Autor King Conan
- Fecha de inicio
calibrador
Borinot sense trellat
Pecci
Miembro habitual
Pego aquí, por si interesa a alguien, las sensaciones que tuve con el Optoma UHZ 65 que pude ver en la última feria AVM Experience el pasado mes de mayo.
Optoma UHZ 65
Nos fuimos de Ingevideo hasta que comenzara el siguiente pase con el Optoma y aprovechamos para visitar otros stand de audio. A la vuelta, el dueño de Ingevideo nos dijo que pasaramos que estaba proyectando el Optoma. Nos comentaron que estaba absolutamente sacado de la caja, con unos ajustes mínimos. Lo primero que note fue un acusado efecto arcoiris. Hacía tiempo que no veía un DLP (he tenido dos a lo largo de mis años de afición) pero me molestó especialmente en este caso. Ahora mismo no podría tener un DLP en mi casa y aconsejo a todo el mundo que antes de comprar esta tecnología mire si es sensible al efecto arcoiris.
Bien, después de ver el Z1, la sensación con el Optoma era un poco de "Bluf". Evidentemente no son proyectores comparables. Pero después de un rato, empezabas a sacar conclusiones interesantes. Lo primero, la luz. Increible como el proyector, "out of the box", y con un tiro de 5,5m sobre la pantalla de 147" (ganacia 1.4, no lo olvidemos, pero era para todos los proyectores) soltaba un chorro de luz importante (no llegaba al Z1 pero no dejaba de ser llamativo el tema). Imagen bastante nítida y muy muy limpia. El chip DMD y la óptica hacen un buen trabajo. Como contras, el espacio de color muy, muy reducido. Los UHD´s parecían BD´s. Preguntado por el tema me dijeron que el proyector cubre a duras penas REC709. Se nota y mucho. La imagen es plana y el nivel de negro, el típico DLP. Tampoco se le puede pedir más. Probablemente bien ajustado se le saque más partido y la nitidez y la luz han sido toda una sorpresa positiva. Puede ser un proyector muy válido para una inmensa mayoría de gente.
Un saludo
Optoma UHZ 65
Nos fuimos de Ingevideo hasta que comenzara el siguiente pase con el Optoma y aprovechamos para visitar otros stand de audio. A la vuelta, el dueño de Ingevideo nos dijo que pasaramos que estaba proyectando el Optoma. Nos comentaron que estaba absolutamente sacado de la caja, con unos ajustes mínimos. Lo primero que note fue un acusado efecto arcoiris. Hacía tiempo que no veía un DLP (he tenido dos a lo largo de mis años de afición) pero me molestó especialmente en este caso. Ahora mismo no podría tener un DLP en mi casa y aconsejo a todo el mundo que antes de comprar esta tecnología mire si es sensible al efecto arcoiris.
Bien, después de ver el Z1, la sensación con el Optoma era un poco de "Bluf". Evidentemente no son proyectores comparables. Pero después de un rato, empezabas a sacar conclusiones interesantes. Lo primero, la luz. Increible como el proyector, "out of the box", y con un tiro de 5,5m sobre la pantalla de 147" (ganacia 1.4, no lo olvidemos, pero era para todos los proyectores) soltaba un chorro de luz importante (no llegaba al Z1 pero no dejaba de ser llamativo el tema). Imagen bastante nítida y muy muy limpia. El chip DMD y la óptica hacen un buen trabajo. Como contras, el espacio de color muy, muy reducido. Los UHD´s parecían BD´s. Preguntado por el tema me dijeron que el proyector cubre a duras penas REC709. Se nota y mucho. La imagen es plana y el nivel de negro, el típico DLP. Tampoco se le puede pedir más. Probablemente bien ajustado se le saque más partido y la nitidez y la luz han sido toda una sorpresa positiva. Puede ser un proyector muy válido para una inmensa mayoría de gente.
Un saludo
calibrador
Borinot sense trellat
Veo que para Optoma hay varias alternativas muy interesantes en función de presupuesto y necesidades, y que van desde los 1400 eur del modelo más económico UHD40 hasta los 2000 del UHD60. Hay más caros, pero esos modelos ya no tienen una relación calidad/precio tan interesantes.
Los modelos lanzados por Optoma 4K compatibles con HDR son: UHD300, UHD350, UHD40, UHD51, UHD550, UHD60, UHD65 y UHZ65.
Quitando los dos últimos, que son notablemente más caros, el resto se mueve en un margen comprendido que va de los 1400 a los 2000 eur.
Ahora la eleccion depende de las necesidades y presupuestos según el tiro, chip de Texas DMD 0.47 o 0.67, 3D y/o Pure motion. O sea, que la oferta es bien amplia para cubrir todos los gustos, presupuestos y necesidades.
Otra cosa interesante, es que el fabricante no pretende engañar a nadie e indica que sus proyectores son solo compatibles con señales HDR en lugar de venderlos como HDR
Los modelos lanzados por Optoma 4K compatibles con HDR son: UHD300, UHD350, UHD40, UHD51, UHD550, UHD60, UHD65 y UHZ65.
Quitando los dos últimos, que son notablemente más caros, el resto se mueve en un margen comprendido que va de los 1400 a los 2000 eur.
Ahora la eleccion depende de las necesidades y presupuestos según el tiro, chip de Texas DMD 0.47 o 0.67, 3D y/o Pure motion. O sea, que la oferta es bien amplia para cubrir todos los gustos, presupuestos y necesidades.
Otra cosa interesante, es que el fabricante no pretende engañar a nadie e indica que sus proyectores son solo compatibles con señales HDR en lugar de venderlos como HDR
calibrador
Borinot sense trellat
He encontrado una review muy serie que puede servir de referencia para saber lo que nos vamos a encontrar en esta nueva gama de proyectores UHD de Optoama
HDR Results
As always we will start this section by saying that HDR on a projector is nothing like the results you will get on an HDR TV. It is a different experience and with a restricted brightness output the specular highlights are never going to have as much intensity that they do on an OLED or LCD TV with a high nits output. Having said that it is possible to get a good HDR effect with a projector when set up to do so without severe clipping of the black levels, shadow details or highlights. The other disadvantage here with the Optoma is that it doesn’t have a wide enough native colour gamut to produce the wide colours of the UHD format. Instead the projector maps this to the Rec.709 standard.
It’ll never have the wider colour but even with ‘old fashioned’ Rec.709, images can pop and colours look vivid and bright. Plus the JVC and Epson machines are three chip models with some alignment issues creating a softer look at times, but the Optoma is a single chip unit and as such the images are incredibly sharp and detailed in comparison. If you stay away from the PureEngine colour boost settings, which quickly make things look garish and overcooked, you will be treated to some really accurate colours with HD material. Even in UHD the lack of wide colour is not the end of the world.
Take the Ultra HD Blu-ray of Planet Earth II and it can look stunning at times. Most of the scenes take place in deserts, forests and oceans that are bright, detailed and colourful and the Optoma is in its element here. The stunning photography really shines off the screen with excellent sharpness and depth. Only during the dark settings, such as the hyenas in the village does the lack of deep blacks and low-end details spoil things slightly. The HDR elements also do have some dynamic range to them, and set up correctly so there is no clipping, it can look very good within the limitations of the Optoma’s abilities. Deepwater Horizon is a newer test disc that has both bright and sunny contrasted with nighttime and bright explosions in HDR, and it can at times look stunning with the UHD65. The projector is capable of displaying the detail within the orange and yellows of the explosions and images look super sharp. Even with so much of the action set at night, the Optoma does a commendable job of trying to display as much as it is capable of on screen.
Even with normal HD material on Blu-ray and via streaming, the brighter content really pops off the screen helped by the excellent sharpness of DLP. Colours are accurate and skin tones are spot on. It’s only the blacks and shadows that disappoint in a bat cave, but in the right environment they are less jarring and will be less of an issue for users with such rooms
Optoma UHD65 4K DLP Projector Review
HDR Results
As always we will start this section by saying that HDR on a projector is nothing like the results you will get on an HDR TV. It is a different experience and with a restricted brightness output the specular highlights are never going to have as much intensity that they do on an OLED or LCD TV with a high nits output. Having said that it is possible to get a good HDR effect with a projector when set up to do so without severe clipping of the black levels, shadow details or highlights. The other disadvantage here with the Optoma is that it doesn’t have a wide enough native colour gamut to produce the wide colours of the UHD format. Instead the projector maps this to the Rec.709 standard.
It’ll never have the wider colour but even with ‘old fashioned’ Rec.709, images can pop and colours look vivid and bright. Plus the JVC and Epson machines are three chip models with some alignment issues creating a softer look at times, but the Optoma is a single chip unit and as such the images are incredibly sharp and detailed in comparison. If you stay away from the PureEngine colour boost settings, which quickly make things look garish and overcooked, you will be treated to some really accurate colours with HD material. Even in UHD the lack of wide colour is not the end of the world.
Take the Ultra HD Blu-ray of Planet Earth II and it can look stunning at times. Most of the scenes take place in deserts, forests and oceans that are bright, detailed and colourful and the Optoma is in its element here. The stunning photography really shines off the screen with excellent sharpness and depth. Only during the dark settings, such as the hyenas in the village does the lack of deep blacks and low-end details spoil things slightly. The HDR elements also do have some dynamic range to them, and set up correctly so there is no clipping, it can look very good within the limitations of the Optoma’s abilities. Deepwater Horizon is a newer test disc that has both bright and sunny contrasted with nighttime and bright explosions in HDR, and it can at times look stunning with the UHD65. The projector is capable of displaying the detail within the orange and yellows of the explosions and images look super sharp. Even with so much of the action set at night, the Optoma does a commendable job of trying to display as much as it is capable of on screen.
Even with normal HD material on Blu-ray and via streaming, the brighter content really pops off the screen helped by the excellent sharpness of DLP. Colours are accurate and skin tones are spot on. It’s only the blacks and shadows that disappoint in a bat cave, but in the right environment they are less jarring and will be less of an issue for users with such rooms
Optoma UHD65 4K DLP Projector Review
No estoy de acuerdo.
Los arcoiris los ves al principio, pero como el sonido de una cascada, al cabo de unos días, tu cerebro lo anula y tienes que buscarlo realizando movimientos rápidos con los ojos para volver a encontrarlo.
Es decir, que para mí, el arco iris más que un problema es una barrera de entrada a la hora de decidirse por un DLP monochip.
calibrador
Borinot sense trellat
Yo es algo que no he visto en la vida, pero el desenfoque y falta de nitidez en movimiento de proyectores de otras tecnologías que no son DLP, es algo que se me clavan como cuchillos en las retinas hasta el punto de hacérseme insoportable, y es una de las razones por las que nuca volveré a aventurarme en algo que no sea DLP.
Por eso digo que no hay una tecnología mejor que otra, ya que es cuestión de gustos, prioridades y necesidades.
Por eso digo que no hay una tecnología mejor que otra, ya que es cuestión de gustos, prioridades y necesidades.
Pecci
Miembro habitual
Pues que quieres que te diga: tengo a un conocido forero que le pones un DLP y empieza con mareos y nauseas (es un caso extremo, es cierto, pero ahí está. De hecho, tuvo que vender su DLP al poco tiempo porque no lo soportaba) Yo he tenido 2 DLP´s durante 6 años y he visto el efecto arcoiris casi en cada parpadeo de ojos y eso que siempre he mantenido relaciones de tamaño de pantalla/distancia razonables. Cierto es que a mí no me molesta el efecto en exceso y podría vivir con él salvo porque 2 horas visualizando un DLP me producen mas fatiga ocular que un LCD/SXRD/DILA
En fin, como todas las tecnologías están disponibles en el mercado, que cada uno elija la que más le convenza, pero el problema del efecto arcoiris existe, y de forma acusada para algunas personas.
Un saludo
Hinomura Krycek
Bayofilo
Yo lo noto muchísimo...
Discrepo totalmente , el que tiene la desgracia de verlo, como yo, lo ve siempre, he tenido 2 DLP durante años y es cierto que al final te acostumbras, pero verlo se ve claramente y lo asumes , cada tecnología tiene sus pros y contras, ya cada uno que elija la que más le conviene por los motivos que sean.
De hecho tengo a un amigo que tiene un óptoma uhd 60, que no veía el arco iris y ahora después de ver varias películas se lo ve casi siempre, pero está encantado y disfrutando del pedazo de proyector que es, con una nitidez exquisita.
Saludos.
calibrador
Borinot sense trellat
Estos proyectores en detalle y nitidez son muy buenos, y uno no sabe lo que es el 4K en proyección hasta que no se enfrenta a uno de estos proyectores.
He tenido la posibilidad de ver uno con Planeta Tierra UHD y la mejora en resolución está ahí y es evidente, con una imagen muy nítida y detallada
He tenido la posibilidad de ver uno con Planeta Tierra UHD y la mejora en resolución está ahí y es evidente, con una imagen muy nítida y detallada
Me sorprende que digas esto. Más que nada porque yo veo arco iris hasta en los plasmas. Se me ocurre que no usases el proyector con la periodicidad que yo (a diario). Pero bueno, también cada uno es como es y le molestan más unas cosas que otras, claro está.
No entiendo lo que dices del arco iris en los plasmas, tengo un plasma Panasonic y nunca le he notado nada parecido al efecto arco iris en proyector DLP.
Está claro que sí no se lo ves, y no te importa mucho que en las escenas oscuras se vea grisáceo, un DLP 4k es una muy buena opción a tener en cuenta sobre todo por lo que cuesta y la extrema nitidez que enamora nada más verlo.
Saludos .
Los plasmas hacen un barrido horizontal de los tres primarios de manera similar a la rueda de color de un DLP. El efecto es el mismo, es decir, muy notorio en cosas brillantes sobre fondo oscuro y un poco menos en el resto. Además como el barrido es horizontal y las pantallas son 16:9 digamos que da más tiempo a verlo que si fuera vertical.
De hecho, si grabas con una cámara la pantalla de un DLP ocurre lo mismo que con la de un plasma: los colores aparecen descompuestos.
Puede que como el proyector se suele ver en oscuridad total te sea más fácil notarlo.
calibrador
Borinot sense trellat
Una más que interesante comparativa entre dos marcas DLP que utilizan mismo chip DMD 0.47 con resultados bastante dispares en términos de resolución, detalle y colorimetría.
calibrador
Borinot sense trellat
Algo sobre esta tecnología:
4K ultra-high-definition (UHD) streaming, broadcast and Blu-ray content is expanding and growing rapidly. 4K UHD content contains over 8 million pixels per data frame – more than four times full HD (1080p) content.
The challenge is how to see the detail, depth and immersive realism that this content offers. We’ve become used to large TVs – in 1080p, 50-inch screens are almost the norm – and reasonably large 4K TVs are becoming affordable. But if you want to see four times as much detail as 1080p offers, it’s not unreasonable to presume that you would also want four times the image size. That means 4K UHD projection, because projection is the only display technology proven to deliver such large image sizes at reasonable prices.
Large projection displays can be very useful for seeing all of the detail in a school or a business environment, and they’re wonderfully immersive for home entertainment, as long as you have enough pixels to fill the screen. A real 4K UHD display solution shows the full 8 million pixels that the 4K UHD specification requires, delivering clear, crisp images that let you see all of the detail.
Key factors of 4K UHD technology
A pixel is just one tiny portion of the picture. In 4K UHD content, the picture comprises 8 million pixels per frame; however, not all pixels are created equal. It’s important to ensure that all 8 million 4K UHD pixels are displayed to deliver precise images. To really leverage the detail available in 4K UHD content, you need great American National Standards Institute (ANSI) contrast, perfect pixel mechanical alignment and extremely fast pixels combined with excellent image processing.
Images with a very high ANSI contrast have very dark blacks and very bright whites in the same picture, indicating the image’s true contrast level. Many technologies quote other data points to indicate image contrast, but these contrast options don’t deliver both dark blacks and bright whites in the same picture. For example, a simple “on/off” contrast compares a white screen to a dark screen, but since real images are viewed in a single picture, it’s critical to have the darkest blacks and brightest whites in the same image. When you have great ANSI contrast, images look sharper, crisper and more immersive.
The heart of a projector is an imager. This device, usually based on liquid-crystal display (LCD), liquid crystal on silicon (LCOS) or Texas Instruments (TI) DLP® technology, implements an array of picture elements. The pixels you see on the screen are created from these picture elements. In DLP technology, the picture element is a series of micromirrors, which individually are about the size of a human blood cell. DLP technology devices can have up to several million mirrors on them, all switching at incredibly fast speeds.
Sometimes projectors use different imagers for the three primary colors: red, green and blue. These imagers each need to be in exact alignment so that every pixel has all of the colors exactly overlapped. The smaller the pixel size, the harder it is to align these imagers during the manufacturing process. If the red, green and blue pixels are out of alignment, the resulting image colors can be incorrect.
By using only one imager to display all colors, DLP one-chip technology avoids potential misalignment issues, making it a great technology for higher-resolution images and 4K UHD content.
Look closely at white text on a black background – if at an edge of the text you can see red, green or blue, the imager pixels are probably out of alignment. These pixel alignment errors – and the actions that projector-makers take to correct them – can lead to color distortion in a 4K UHD image.
Pixel sizes have been shrinking as a result of increased resolution. A 720p imager has 1 million pixels. 1080p has 2 million pixels. 4K UHD has to get 8 million pixels to the screen. The picture element size for 4K UHD is now so small that it is very hard to achieve alignment when using multiple imagers. This has become one of the most significant challenges in 4K UHD projection.
Make sure you’re getting all the pixels you paid for
The Consumer Technology Association (CTA) defines 4K UHD as displaying 8 million pixels on the screen. But not all “4K” projection technologies actually deliver these 4K UHD-specified 8 million pixels to the screen; some deliver only 4 million pixels. To leverage the enormous detail available in 4K UHD content, it’s obviously critical to display all 8 million pixels. Check the specification of the technology you plan to use. Look for the UHD acronym.
Part of the mission of displaying 4K UHD content is to get all of the detail to the screen cost-effectively. Extremely high-quality, full 8 million pixels 4K UHD projection can be very cost-effective by using the imager element to create multiple pixels on the screen. This is made possible through a combination of extremely fast pixels and advanced signal processing. DLP 4K UHD technology uses advanced image-processing algorithms to craft a clear, crisp, precise high-resolution picture.
Why 4K?
4K content is full of rich, vibrant detail. With the right 4K UHD projection technology, that detail becomes evident in valuable ways. Think about how display is used in the business world. During a presentation, you want everyone in the room to be able to see the detail on a given slide. How many times have you seen a slide with a dense spreadsheet and strained to see the numbers?
4K UHD projection display has the potential to greatly enhance the readability of such content, delivering crisp characters and executing smooth curves and edges that make reading and visualizing data easier. The same is true for schools, where 4K UHD can help students see and read as much as possible. For home entertainment, 4K UHD has enough detail to fill large screens and help drive the ultimate entertainment experience. Advances in 4K UHD technology also enable a portable 4K experience, allowing users to take their display with them and view on-demand content. 4K UHD DLP technology is known for precision, accuracy and detail, with the potential to help drive more productive business, more effective education and more immersive home entertainment.
The applications for 4K UHD projection display technology extend beyond the traditional projection display markets of business, education and home theater to new areas like digital signage, laser TV and mobile smart TV.
Digital signage allows businesses or organizations to convey real-time information in a public setting, like in a restaurant or on a billboard. 4K UHD delivers immersive detail and big displays, both great ways to convey information.
Laser TV is a 4K UHD ultra-short throw-projection display that specializes in displaying content such as streaming on-demand video in ambient light conditions like your living room. Consumers can place the product on the floor and project a 100-inch or larger display, either onto a special ambient-light rejection screen or just a wall. Laser TVs are designed for a modern lifestyle, delivering very large displays while still being portable. They display 4K UHD content typically using DLP technology imagers in order to maximize the immersive detail within the content
Mobile smart TV products typically use light-emitting diode (LED) illumination. They focus almost exclusively on streaming on-demand video content and almost never bundle an ambient-light rejection screen. While laser TVs are often up to 3,000 lumens in brightness, mobile smart TVs are typically 1,500 lumens or less. These product category is moving toward 4K UHD display functionality in order to prepare for the influx of 4K UHD streaming content. The compact size of these mobile-class of products allows for portability and flexibility to take 4K UHD display to new locations. For more detail on mobile smart TVs, check out the online training.
Pushing the boundaries of 4K UHD
Building on the introduction of the DLP660TE last year, DLP Products is taking it a step further with the introduction of the DLP470TE and DLP470TP chipsets. The DLP470TP is the most compact 4K UHD solution from DLP Products, and is optimized for size and power. This chipset is the best fit for applications that demand portability, and brightness levels below 1,500 lumens. The DLP470TEshares many technical characteristics with the DLP470TP, but is optimized for projectors above 1,500 lumens. This device is in a larger package than the DLP470TP, which allows it to withstand a greater amount of heat, enabling brightness up to 4,000 lumens.
With a tiny 0.47-inch diagonal, you can display 8.3 million pixels in a smaller design for a cost-effective display solution for the mainstream market.The DLP470TE and DLP470TP 4K UHD chipsets display four pixels on the screen per micromirror, enabling the smallest 4K UHD digital micromirror device (DMD) that DLP technology has to offer. With a wide range of lumens capabilities, the DLP 4K UHD family of chipsets allows you to broaden your 4K UHD display possibilities by developing systems that use the chipset’s high brightness capabilities and small form factor for applications such as laser TV, digital signage, gaming, corporate and education projectors, mobile smart TV, and more.
It’s important to be ready as content transitions to 4K UHD. New 4K UHD solutions like DLP 4K UHD technology deliver outstanding clear, crisp, precise images using new technological advances and advanced image-processing algorithms. True 4K UHD displaying 8 million pixels will bring 4K UHD content to life and make it easier to see, read and be entertained.
4K ultra-high-definition (UHD) streaming, broadcast and Blu-ray content is expanding and growing rapidly. 4K UHD content contains over 8 million pixels per data frame – more than four times full HD (1080p) content.
The challenge is how to see the detail, depth and immersive realism that this content offers. We’ve become used to large TVs – in 1080p, 50-inch screens are almost the norm – and reasonably large 4K TVs are becoming affordable. But if you want to see four times as much detail as 1080p offers, it’s not unreasonable to presume that you would also want four times the image size. That means 4K UHD projection, because projection is the only display technology proven to deliver such large image sizes at reasonable prices.
Large projection displays can be very useful for seeing all of the detail in a school or a business environment, and they’re wonderfully immersive for home entertainment, as long as you have enough pixels to fill the screen. A real 4K UHD display solution shows the full 8 million pixels that the 4K UHD specification requires, delivering clear, crisp images that let you see all of the detail.
Key factors of 4K UHD technology
A pixel is just one tiny portion of the picture. In 4K UHD content, the picture comprises 8 million pixels per frame; however, not all pixels are created equal. It’s important to ensure that all 8 million 4K UHD pixels are displayed to deliver precise images. To really leverage the detail available in 4K UHD content, you need great American National Standards Institute (ANSI) contrast, perfect pixel mechanical alignment and extremely fast pixels combined with excellent image processing.
Images with a very high ANSI contrast have very dark blacks and very bright whites in the same picture, indicating the image’s true contrast level. Many technologies quote other data points to indicate image contrast, but these contrast options don’t deliver both dark blacks and bright whites in the same picture. For example, a simple “on/off” contrast compares a white screen to a dark screen, but since real images are viewed in a single picture, it’s critical to have the darkest blacks and brightest whites in the same image. When you have great ANSI contrast, images look sharper, crisper and more immersive.
The heart of a projector is an imager. This device, usually based on liquid-crystal display (LCD), liquid crystal on silicon (LCOS) or Texas Instruments (TI) DLP® technology, implements an array of picture elements. The pixels you see on the screen are created from these picture elements. In DLP technology, the picture element is a series of micromirrors, which individually are about the size of a human blood cell. DLP technology devices can have up to several million mirrors on them, all switching at incredibly fast speeds.
Sometimes projectors use different imagers for the three primary colors: red, green and blue. These imagers each need to be in exact alignment so that every pixel has all of the colors exactly overlapped. The smaller the pixel size, the harder it is to align these imagers during the manufacturing process. If the red, green and blue pixels are out of alignment, the resulting image colors can be incorrect.
By using only one imager to display all colors, DLP one-chip technology avoids potential misalignment issues, making it a great technology for higher-resolution images and 4K UHD content.
Look closely at white text on a black background – if at an edge of the text you can see red, green or blue, the imager pixels are probably out of alignment. These pixel alignment errors – and the actions that projector-makers take to correct them – can lead to color distortion in a 4K UHD image.
Pixel sizes have been shrinking as a result of increased resolution. A 720p imager has 1 million pixels. 1080p has 2 million pixels. 4K UHD has to get 8 million pixels to the screen. The picture element size for 4K UHD is now so small that it is very hard to achieve alignment when using multiple imagers. This has become one of the most significant challenges in 4K UHD projection.
Make sure you’re getting all the pixels you paid for
The Consumer Technology Association (CTA) defines 4K UHD as displaying 8 million pixels on the screen. But not all “4K” projection technologies actually deliver these 4K UHD-specified 8 million pixels to the screen; some deliver only 4 million pixels. To leverage the enormous detail available in 4K UHD content, it’s obviously critical to display all 8 million pixels. Check the specification of the technology you plan to use. Look for the UHD acronym.
Part of the mission of displaying 4K UHD content is to get all of the detail to the screen cost-effectively. Extremely high-quality, full 8 million pixels 4K UHD projection can be very cost-effective by using the imager element to create multiple pixels on the screen. This is made possible through a combination of extremely fast pixels and advanced signal processing. DLP 4K UHD technology uses advanced image-processing algorithms to craft a clear, crisp, precise high-resolution picture.
Why 4K?
4K content is full of rich, vibrant detail. With the right 4K UHD projection technology, that detail becomes evident in valuable ways. Think about how display is used in the business world. During a presentation, you want everyone in the room to be able to see the detail on a given slide. How many times have you seen a slide with a dense spreadsheet and strained to see the numbers?
4K UHD projection display has the potential to greatly enhance the readability of such content, delivering crisp characters and executing smooth curves and edges that make reading and visualizing data easier. The same is true for schools, where 4K UHD can help students see and read as much as possible. For home entertainment, 4K UHD has enough detail to fill large screens and help drive the ultimate entertainment experience. Advances in 4K UHD technology also enable a portable 4K experience, allowing users to take their display with them and view on-demand content. 4K UHD DLP technology is known for precision, accuracy and detail, with the potential to help drive more productive business, more effective education and more immersive home entertainment.
The applications for 4K UHD projection display technology extend beyond the traditional projection display markets of business, education and home theater to new areas like digital signage, laser TV and mobile smart TV.
Digital signage allows businesses or organizations to convey real-time information in a public setting, like in a restaurant or on a billboard. 4K UHD delivers immersive detail and big displays, both great ways to convey information.
Laser TV is a 4K UHD ultra-short throw-projection display that specializes in displaying content such as streaming on-demand video in ambient light conditions like your living room. Consumers can place the product on the floor and project a 100-inch or larger display, either onto a special ambient-light rejection screen or just a wall. Laser TVs are designed for a modern lifestyle, delivering very large displays while still being portable. They display 4K UHD content typically using DLP technology imagers in order to maximize the immersive detail within the content
Mobile smart TV products typically use light-emitting diode (LED) illumination. They focus almost exclusively on streaming on-demand video content and almost never bundle an ambient-light rejection screen. While laser TVs are often up to 3,000 lumens in brightness, mobile smart TVs are typically 1,500 lumens or less. These product category is moving toward 4K UHD display functionality in order to prepare for the influx of 4K UHD streaming content. The compact size of these mobile-class of products allows for portability and flexibility to take 4K UHD display to new locations. For more detail on mobile smart TVs, check out the online training.
Pushing the boundaries of 4K UHD
Building on the introduction of the DLP660TE last year, DLP Products is taking it a step further with the introduction of the DLP470TE and DLP470TP chipsets. The DLP470TP is the most compact 4K UHD solution from DLP Products, and is optimized for size and power. This chipset is the best fit for applications that demand portability, and brightness levels below 1,500 lumens. The DLP470TEshares many technical characteristics with the DLP470TP, but is optimized for projectors above 1,500 lumens. This device is in a larger package than the DLP470TP, which allows it to withstand a greater amount of heat, enabling brightness up to 4,000 lumens.
With a tiny 0.47-inch diagonal, you can display 8.3 million pixels in a smaller design for a cost-effective display solution for the mainstream market.The DLP470TE and DLP470TP 4K UHD chipsets display four pixels on the screen per micromirror, enabling the smallest 4K UHD digital micromirror device (DMD) that DLP technology has to offer. With a wide range of lumens capabilities, the DLP 4K UHD family of chipsets allows you to broaden your 4K UHD display possibilities by developing systems that use the chipset’s high brightness capabilities and small form factor for applications such as laser TV, digital signage, gaming, corporate and education projectors, mobile smart TV, and more.
It’s important to be ready as content transitions to 4K UHD. New 4K UHD solutions like DLP 4K UHD technology deliver outstanding clear, crisp, precise images using new technological advances and advanced image-processing algorithms. True 4K UHD displaying 8 million pixels will bring 4K UHD content to life and make it easier to see, read and be entertained.
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Borinot sense trellat
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Borinot sense trellat
Después de haber hecho las mil y una pruebas con un Panasonic UB824 en un Optoma UHD51, he llegado a la conclusión de que el Panasonic con el HDR OPTIMICER en posición de ON, no solo no me aporta absolutamente nada, sino que me resta en lugar de sumar, porque me quita algo de luz, que no detalle, en los aspectos más destacados de la imagen, por lo que el mapping del Optoma me ofrece un HDR con un pelin más de dinámica que el HDR ofrecido por el reproductor de Panasonic. En definitiva, que mejor HDR OPTIMICER en OFF si es para un Optoma UHD51
Hola, tengo desde hace unos 9 años un optoma HD80 Full HD que me ha dado bastantes alegrías y empiezo a plantearme reemplazarlo.
¿Están realmente suficiente maduros los 4k de precios razonables (Hasta 2000€) para que merezca la pena el reemplazo?
¿Están realmente suficiente maduros los 4k de precios razonables (Hasta 2000€) para que merezca la pena el reemplazo?
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Borinot sense trellat
Interesante, muy interesante, aunque a mí no me sorprenda.
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Borinot sense trellat
Eh? Pero si lo tengo menos de 1 mes