LCD white balance real-time switching selection optimization method and system
An optimization method and white balance technology, applied to instruments, static indicators, etc., can solve the problems of applications that do not include real-time selection of white balance, inapplicability, etc.
Active Publication Date: 2016-08-17
FOCALTECH ELECTRONICS
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However, this method is not suitable for white balance real-time selection, because a new set of white point RGB drive values must be generated by repeatedly performing white balance measurement calculations
In U.S. Patent Application Publication No. 20120188265, a simplified white balance adjustment method is proposed, which uses a white balance adjustment value GainH suitable for high gray levels and a white level adjustment value GainL suitable for low gray levels, To adjust the white balance of each gray scale, but this method is only to adjust a set of white balance settings for all screens, and does not include the application of white balance real-time selection
Therefore, there is still room for improvement in the existing white balance adjustment technology
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[0034] figure 1 A block diagram of an optimization system 100 selected for real-time switching of LCD white balance according to the present invention. The optimization system 100 includes an RGB-to-YUV conversion unit 110 , a white balance adjustment unit 120 , and a YUV-to-RGB conversion unit 130 .
[0035] The RGB-to-YUV conversion unit 110 receives an image signal, and converts the image signal from the RGB color gamut to the YUV color gamut to generate a first YUV color gamut image signal, wherein, compared with the prior art, the RGB color gamut The white balance correction is performed in the YUV color gamut, and the present invention performs the white balance correction in the YUV color gamut, so it needs to be converted to the YUV color gamut first.
[0036] The white balance adjustment unit 120 is connected to the RGB-to-YUV conversion unit 110 , and performs white balance adjustment on the first YUV color gamut image signal to generate a second YUV color gamut ima...
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The invention provides an LCD white balance real-time switching selection optimization method and system. The system comprises an RGB-to-YUV conversion unit, a white balance adjustment unit, and a YUV-to-RGB conversion unit. The RGB-to-YUV conversion unit receives an image signal and transforms the image signal from an RGB color gamut to a YUV color gamut to generate a first YUV color gamut image signal. The white balance adjustment unit is connected to the RGB-to-YUV conversion unit and adjusts the white balance of the first YUV color gamut image signal to generate a second YUV color gamut image signal. The YUV-to-RGB conversion unit transforms the second YUV color gamut image signal from the YUV color gamut to the RGB color gamut.
Description
technical field [0001] The invention relates to the technical field of display panels, in particular to an optimization method and system for real-time switching selection of LCD white balance. Background technique [0002] In recent years, with the development and continuous advancement of broadcast communication technology, new information display devices have emerged, among which liquid crystal display technology is the most prominent. Liquid crystal display technology, with its unique characteristics of low voltage and low power consumption, enables liquid crystal display to be directly combined with large-scale integrated circuits to develop a series of products with display functions. [0003] In many display devices, such as monitors, mobile phone screens, digital camera display screens, etc., it is necessary to adjust the white balance. The quality of the white balance adjustment directly affects the quality of the displayed picture. White balance is usually adjust...
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IPC IPC(8): G09G3/36
Inventor 吴鸿居
Owner FOCALTECH ELECTRONICS