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BenQ HDR-PRO Technology

Adjusts Perfect Details in Shadows and Highlights for Better Stereo Perception

2024/05/16

The advent of HDR (High Dynamic Range) technology has revolutionized video display by offering heightened detail and color accuracy, particularly in depicting the nuances of light and dark areas within an image. Recognizing the significance of HDR as a sought-after specification among media professionals and entertainment enthusiasts, BenQ, a developer committed to elevating image quality, introduces its exclusive HDR-PRO technology. Designed to deliver precise color reproduction and dynamic contrast, BenQ's HDR-PRO projectors aim to immerse consumers in a cinematic visual experience, a testament to the creators' vision.

Understanding HDR

HDR, or High Dynamic Range, represents a standard in video signals that provides a wider dynamic range, allowing images to be displayed with higher brightness and finer tonal details. HDR enhances both the brightness of highlights and the contrast in shadow areas, resulting in a more comprehensive and faithful representation of the original image, closer to what the human eye perceives.

In this series of articles, we’ve introduced the basic definitions of HDR and gained a better understanding of filming and doing post-production for HDR video. In the previous article, we discussed whether there is true HDR for projectors. In that article, we showed that even though the maximum brightness of projectors is limited, with the latest technology manufacturers are trying to give consumers a viewing experience that is closer to watching a film at the cinema.

Other than LCD TVs and display panels, BenQ also puts great effort into developing projectors by integrating software and hardware technologies to present an authentic HDR image, which allows consumers to view content with more detail and better picture quality.

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Unveiling the Key to BenQ HDR-PRO Technology: Multi-Stage Light Control

First Stage: Optimal HDR Tone Mapping

Adjusting and displaying the best image according to projector specifications

Different devices often have different specifications, which might lead to misrepresentation of the original content in terms of color and brightness. BenQ HDR-PRO technology is designed with Tone Mapping in mind to make sure that images being projected are all based on accurate calculation and precise projection.

BenQ puts great effort into developing projectors by integrating software and hardware technologies altogether to present an authentic HDR image, and reproduce exact details with more dynamic range in both highlight and shadow areas. Therefore, it can bring the original visual elements to the audience and provide an authentic viewing experience that is closest to watching a film in the cinema.

BenQ HDR-PRO Projector

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Second Stage: Global & Local Contrast Enhancer

Optimizing contrast and detail in both shadow and highlight areas simultaneously

When image information is concentrated in medium brightness, the Global Contrast Enhancer adopts an "S curve" to enhance detail in highlights and shadows. While these features can produce contrast enhancement effects, challenges arise when an image contains both highlights and shadows. BenQ's industry-leading Local Contrast Enhancer overcomes such challenges. Each image is divided into over 1,000 regions for applying localized contrast enhancement algorithms, optimizing contrast and detail in both shadow and highlight areas simultaneously.

Better dark detail

Better bright detail

Utilizing both Global & Local Contrast Enhancer technology, BenQ projectors produce deeper black levels and optimized contrast detail. With revolutionary overall stereoscopic perception, they offer viewers richer 4K HDR image depth, catering to the preferences of audiovisual enthusiasts.

Third Stage: Dynamic Black

Enhancing performance in color, brightness, and contrast

To maximize the effectiveness of tone mapping, BenQ employs Dynamic Black technology tailored for different light sources. While most projectors in the market prioritize either highlights or shadows, some sacrifice image fidelity to maintain contrast within their range. Through Dynamic Black, projectors calculate the optimal light output for different content or scenes, dynamically adjusting their light source output through control of the projector's optical system. This optimization enhances contrast, bringing scenes closer to the vision intended by directors or creators.

With its Dynamic Black technology and proprietary deep dark sealing coating optical engine, BenQ lamp projectors are able to create a very wide dynamic range. Regardless of whether the original scene is very bright or dark, viewers will be able to see the original video more clearly. Especially the exclusive advantage of BenQ's solid state illumination (SSI) technology is that can respond to the change of image brightness more quickly, with a 20% higher contrast compared with other SSI technology.

BenQ Envisages More Details for You

Provide the ideal HDR brightness for different projection screen sizes to produce the best HDR images

The brightness of an HDR projector, unlike HDR monitors, is not fixed by the signal assigned to it, but varies depending on the distance between the projector and the screen, screen sizes, and the material of the screen. Therefore, BenQ HDR-PRO projectors provide 5 different recommended HDR brightness levels for 5 different common home projector screen sizes*. It is also equipped with a brightness control so that users can change the brightness level based on screen sizes to enjoy the best viewing experience. (The common home projection screen sizes are 80,” 100,” 120,” 150,” and 200.”)

In addition, BenQ HDR-PRO technology does not simply focus on providing maximum brightness to show more dynamic range. Instead it provides sufficient and comfortable brightness choices in order to avoid long-term eye fatigue. This feature also presents a comprehensive, detailed and realistic image in a way that is best suited for human eyes.

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