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GAMMA debugging method capable of improving color temperature non-uniformity of liquid crystal screen

A debugging method and screen technology, applied in color signal processing circuits, static indicators, instruments, etc., can solve the problems of uneven color temperature of liquid crystal screens and the inability to guarantee the consistency of white balance of liquid crystal screens, so as to improve the uneven color temperature and ensure The effect of consistency

Inactive Publication Date: 2017-05-31
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the current liquid crystal screen color temperature debugging method cannot guarantee the white balance consistency of the entire liquid crystal screen, and provides a GAMMA debugging method for improving the uneven color temperature of the liquid crystal screen

Method used

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Embodiment

[0029] The GAMMA debugging method for improving the uneven color temperature of a liquid crystal screen according to an embodiment of the present invention comprises the following steps:

[0030] Step 1. Observe the color cast of the LCD screen, select N partition image signals to transmit to the LCD screen according to the color cast, and perform GAMMA debugging on it with N partitions. The N partition refers to dividing the entire screen of the LCD screen into N partitions. partitions with the same size and different positions.

[0031] In this step, the N partition can be 4 partitions, 9 partitions, or 16 partitions. Generally, 4 partitions can be used for GAMMA debugging if the screen consistency is good. If the color cast is serious, 9 partitions or 16 partitions can be used for GAMMA debugging. It is not recommended Using too high partition debugging will increase the debugging workload and implementation complexity.

[0032] This step may include the following specific...

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Abstract

The invention relates to a liquid crystal screen technology, aims to solve the problem that white balance consistence of a whole liquid crystal screen cannot be ensured by an existing color temperature debugging method of the liquid crystal screen, and provides a GAMMA debugging method capable of improving the color temperature non-uniformity of the liquid crystal screen. According to the technical scheme, the GAMMA debugging method comprises the following steps: firstly, observing the color cast condition of the liquid crystal screen; selecting N partitions of image signals according to the cast condition, and transmitting the image signals to the liquid crystal screen; and performing GAMMA debugging by N partitions respectively. The GAMMA debugging method has the beneficial effects of convenience for a user and suitability for intelligent refrigerators.

Description

technical field [0001] The invention relates to liquid crystal screen technology, in particular to the liquid crystal screen color temperature debugging technology. Background technique [0002] When the LCD screen displays different grayscale signals, the human eye can easily distinguish the slight color shift displayed on the grayscale, that is, the color temperature difference on the grayscale with different brightness. In order to ensure the consistent grayscale effect of the screen, it is necessary to compensate the RGB (red, green and blue) parameters on different grayscales to correct the color temperature deviation of the image. This is essential in the production and debugging of LCD TVs, called color temperature debugging. method. [0003] With the intensification of competition in the LCD TV market, in order to reduce costs, various manufacturers will relax the quality control standards for OC, backlight strips, and diaphragms of LCD screens. Therefore, uneven co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/73G09G3/36G09G3/20
Inventor 倪辉赵之明李松懋
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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