Visual test method for colorimetric property of liquid crystal television screen

A technology of LCD TV and test method, which is applied to instruments, static indicators, etc., can solve the problem of inability to analyze the influence of parameters on the picture quality, and achieve the effect of guiding debugging and direct effect.

Inactive Publication Date: 2018-01-23
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology

[0010] It is impossible for non-professionals to infer the change of the optical indicators of the display device through the test data, and other inexperienced pr

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  • Visual test method for colorimetric property of liquid crystal television screen
  • Visual test method for colorimetric property of liquid crystal television screen
  • Visual test method for colorimetric property of liquid crystal television screen

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Embodiment 1

[0026] Embodiment 1: a kind of visual testing method of the chromaticity characteristic of liquid crystal television screen, at first write analysis tool, import the chromaticity coordinate system of international standard CIE1931 color in tool; Tool interface sees appendix figure 1 ;Test the red, green and blue X and Y color coordinates of the flat panel display in the standard state, and import the parameters through the tool interface; through the analysis tool, the chromaticity triangle based on the CIE1931 chromaticity diagram can be output, and the graphic display is shown in the appendix figure 2 Then test the red, green and blue X and Y color coordinates of the flat panel display to be analyzed, and import the data into the test tool; the contrast change figure of the output chromaticity triangle: carry out the chromaticity characteristic triangle of the standard display and the display to be analyzed comparison display (see attached image 3 ); on the chromaticity co...

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Abstract

The invention discloses a visual test method for the colorimetric property of a liquid crystal television screen. A CIE1931 X-Y is transformed into a CIE1931 colorful RGB colorimetric coordinate system based on a transformation relationship in an analysis tool and a chromaticity diagram is used as the background; X-color and Y-color coordinate data of an R red color, a G green color, and a B bluecolor are obtained by using a color analyzer; the analysis tool generates a chromatic triangle of a standard screen by using R, G, and B color coordinates as vertexes; the analysis tool generates a chromatic triangle of a to-be-analyzed screen by using R, G, and B color coordinates as vertexes; and a formed colorimetric comparison analysis graph is displayed in a CIE1931 colorful RGB chromatic coordinate system. Compared with the prior art, the method has the following beneficial effects: the colorimetric property change of a flat panel display device is analyzed rapidly; and the difference between the colorimetric property of the flat panel display device and the standard state can be determined even by a person not being a professional optical worker; the effect is direct and vivid; andthe corresponding optical picture quality compensation is realized.

Description

technical field [0001] The invention relates to a performance test technology of an intelligent digital video terminal, in particular to a visual test method for the chromaticity characteristic of a liquid crystal television screen. Background technique [0002] As an information display terminal, the flat panel display's optical characteristics are very important technical indicators. Changes in optoelectronic materials and TV parameter settings will eventually directly affect the picture quality of TV products. [0003] In actual debugging, it is very complicated to detect the optical characteristics of the LCD screen: after testing the color coordinates of the LCD screen, the parameters cannot directly reflect the changes in the optical indicators of the whole machine, and the designer needs to perform equation calculation, parameter analysis, Only by comparing the charts can it be clarified; when comparing optical parameters, it is generally difficult to see the optical...

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Application Information

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IPC IPC(8): G09G3/00
Inventor 梁敏
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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