Dolby® Vision, a Dolby high-dynamic-range (HDR) technology, brings the HDTV visual experience closer to real life than ever before.
Dolby Vision:
Enables LCDs to display previously unattainable contrast and brightness levels
Provides significant power savings compared to conventional LCDs at the same brightness
Includes expert Dolby engineering support
Offers access to Dolby’s network of partners, accelerating design, development, and manufacturing
Dolby Vision delivers unmatched picture quality and contrast, with deeper blacks, brighter whites, and more vivid, natural colors. The result is a viewer experience that is stunningly superior to that of watching a conventional display.
Both levels of Dolby’s HDR technologies, Dolby Contrast and Dolby Vision, overcome the limitations of LCDs by employing locally modulated LED backlighting rather than current conventional cold-cathode fluorescent (CCFL) tubes.
By locally controlling each portion of the image (also known as local dimming), Dolby Contrast and Dolby Vision enable strikingly high contrast, producing details otherwise not seen on a conventional display.
Dolby Vision goes beyond Dolby Contrast, delivering the full dynamic range that nearly matches the maximum of human visual capabilities, extended brightness, and more advanced dynamic range processing via modulation of a more fine-grained grid behind the LCD panel.
Dolby also helps you leverage intellectual property throughout the HDR value chain, from guiding your choice of the best manufacturing partners, through utilizing the expertise of Dolby engineers for image optimization and implementation.
Dolby’s expert video engineering team has 100-plus years of combined television development and manufacturing experience. That matters, because we include engineering support with every Dolby Vision license. So you can count on us to help you manage the engineering demands that come with developing innovative products, from design through manufacturing.
Why Dolby
Conventional LCD TVs deliver a sharp, high-resolution picture. However, they have a limited dynamic range and cannot display true blacks.
Dolby Vision overcomes both limitations. The combination of LED backlighting and proprietary local dimming technology dramatically increases the dynamic range and enables true blacks and far more detail in all other colors.
With a higher contrast ratio your TV sets will stand out on the retail floor. And that’s important when so many displays look so very much alike.
Dolby Vision is a complete end-to-end HDR solution. We work with your team to speed innovative products to market, leveraging our extensive network that includes a portfolio of HDR intellectual property, core local dimming patents, and more than 100 patents pending worldwide. We also provide comprehensive engineering technical support.
While LEDs are quickly surpassing the efficiencies of CCFLs, widespread adoption continues to drive lower LED prices. As a result, Dolby Vision offers superior image quality at a competitive cost, with the added value of at least a 20 percent power savings (on average) compared to CCFLs when viewing typical movie content.
Dolby® Vision technology replaces today’s typical uniform backlight approach with an array of actively modulated LEDs. These LEDs create a low-resolution display, which is then projected through the LCD panel that displays a high-resolution version of the image.
The LED’s ability to be instantly turned on and off, combined with its small physical size, enables precise control of where the light strikes the LCD. With Dolby Vision, the LEDs are controlled to produce the required intensity of light on the pixels they are positioned behind. This local control produces a dynamic range of luminance that is orders of magnitude greater than is possible with current CCFL LCD panels, resulting in a far more realistic image.
LCD Performance Comparison
| | Globally Modulated LCD
TV/CCFL Backlight
| Other LED
Backlight
| Dolby Contrast Modulated/
LED Backlight
| Dolby Vision Modulated/
LED Backlight
|
Black Level |
0.15 cd/m2
|
0.10 cd/m2
|
0.05 cd/m2
|
0.001 cd/m2 or greater
|
ANSI Contrast Ratio |
1,000:1–3,000:1
(LCD panel only)
|
Approximately 1.5x LCD panel’s
static contrast ratio
|
Minimum of 2.5x
LCD panel’s static contrast ratio
|
Minimum of 3x
LCD panel’s static contrast ratio
|