RGBW GETS NOD OF APPROVAL FROM INDUSTRY GROUP FOR 4K ULTRA HD PICTURE STANDARD
- 06, 01 2016
SEOUL, June 1, 2016 — Last week in San Francisco, California, the International Committee for Display Metrology (ICDM) convened and officially recognized the RGBW TV format as meeting all the required qualifications for rendering 4K Ultra HD images. The ICDM’s recognition of RGBW as true 4K follows the organization’s conclusion that the same display assessment standards for RGB can apply to other advanced subpixel architectures such as RGBY and PenTile®, putting to rest the confusion over the exact capabilities of RGBW.
In Status of Pixels and Subpixel Rendering for Resolution Measurements (www.icdm-sid.org/updates/Docs/7p0-01-20160524.pdf), the ICDM writes:
It has been shown that the principles laid down in the International Display Measurement Standard (IDMS) can be successfully applied to measurement of the resolution of displays with flexible pixel arrangements. One way to cope with the existing conflicts of the IDMSv1p03b is to give up thinking in terms of pixels, and to start thinking in terms of subpixels instead. This is often referred to as subpixel rendering. The determination of line widths should also be done in terms of subpixels. As soon as the width of the moving window used for averaging of luminance profiles is not taken from ill-defined subpixel-to-pixel relationships, the procedure for determination of visual display resolution becomes straightforward and transparent.
The ICDM also made it a requirement for resolution tests to specify the contrast modulation value in verification documents. Contrast modulation is measured as a way to ver
ify product compliance with resolution standards. According to the IDMS (International Display Measurement Standard), contrast modulation is the difference in brightness between each adjacent line in a horizontal and vertical grid of lines emitting light and color on the screen to create images, not the display resolution.
“We believe the ICDM’s recognition of the flexible pixel arrangement and subpixel rendering as being suitable for the measurement of resolution will bring confidence to consumers regarding 4K picture quality when they purchase UHD TVs based on RGBW technology,” said Brian Kwon, President and CEO at LG’s Home Entertainment Company.
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About LG Electronics Singapore Pte Ltd
LG Electronics Singapore Pte Ltd (LG Electronics Singapore) is a fully-owned subsidiary of LG Electronics Inc., the pioneer and market leader of the Korean electronics industry for over five decades. LG Electronics Singapore operates three business units – Home Entertainment, Mobile Communications and Home Appliance & Air Solution. In recognition of its vision to enrich people’s life with smart technologies and innovative design, LG Electronics Singapore has been recognized with prominent local and international accolades, such as the CNET Asia Editor’s and Readers' Choice Awards, HWM+HardwareZone.com Tech Awards, Red Dot Design, and GfK No. 1 Awards. For more information, please visit www.lg.com/sg.