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Display device and display device control method

A display device and screen display technology, which are applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of inconvenient adjustment of gamma values, and achieve the effect of convenient adjustment of gamma values.

Active Publication Date: 2011-12-14
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the user is inconvenient to adjust the gamma value, it is necessary to provide a display device that allows the operator to easily adjust the gamma value through the screen display control system

Method used

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  • Display device and display device control method
  • Display device and display device control method

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Embodiment Construction

[0011] see figure 1 , is a block diagram of the first embodiment of the liquid crystal display device of the present invention. The display device 1 includes a microprocessor (MCU) 10 , a screen display control system 20 , a gamma correction circuit (Gamma Correction Circuit) 30 and a liquid crystal display panel 40 . The screen display control system 20 is connected to the microprocessor 10 , the microprocessor 10 is connected to the gamma correction circuit 30 , and the gamma correction circuit 30 is connected to the liquid crystal display panel 40 .

[0012] The gamma correction circuit 30 includes a plurality of look-up tables (Look Up Tables, LUTs) (not shown), each of which corresponds to a gamma value, and each look-up table stores a plurality of original gray scales and the Multiple corrected grayscales corresponding to the original grayscale. Among the plurality of look-up tables, the look-up table corresponding to the current gamma value of the display device 1 is ...

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Abstract

The invention provides a display device and a method for controlling the display device. The display device includes a screen display control system, a gamma correction circuit for correcting the gray scale and a display screen, the screen display control system includes an input system for setting the gamma value, and the gamma correction circuit includes A basic lookup table and an extended lookup table, the basic lookup table corresponds to a first gamma value, which stores a plurality of original grayscales and a plurality of corrected grayscales corresponding to the original grayscales under the first gamma value scale, the extended lookup table corresponds to a second gamma value, which stores multiple original gray scales, and can generate multiple corrected gray scales corresponding to the original gray scale under the second gamma value according to the basic lookup table, The gamma correction circuit can set one of the basic lookup table and the extended lookup table as the current lookup table according to the gamma value input by the input system to correct the gray scale, and display the gray scale according to the corrected gray scale displayed on the screen.

Description

technical field [0001] The invention relates to a display device and a control method of the display device. Background technique [0002] Due to the characteristics of low radiation, thinness and low power consumption, liquid crystal display devices are widely used, and with the maturity and innovation of related technologies, there are more and more types of liquid crystal display devices. Today, when customization is becoming more and more important, users can control the brightness (Brightness), contrast (Contrast), color temperature (Color Temperature), phase (Phase) of the display device through the On Screen Display (OSD) of the display device. ) and other display characteristic parameters are adjusted to meet the display effect of personal preference. [0003] However, since everyone's perception of gray scale is different, and the perception of gray scale will also change due to environmental changes. Therefore, if users want to achieve a satisfactory display effe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G5/06
Inventor 王剑锋
Owner INNOCOM TECH (SHENZHEN) CO LTD
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