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Full gain compensate control system and method for gamma collection in display controller

A technology for displaying controllers and brightness values, applied to static indicators, TV system components, instruments, etc., can solve problems affecting the performance of video display systems and increasing the cost of video display systems

Inactive Publication Date: 2008-10-22
ETRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the complexity and cost of the video display system
Additionally, additional circuitry can affect the performance of video display systems, especially high-resolution screens

Method used

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  • Full gain compensate control system and method for gamma collection in display controller
  • Full gain compensate control system and method for gamma collection in display controller
  • Full gain compensate control system and method for gamma collection in display controller

Examples

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Embodiment Construction

[0084] According to the video control circuit of the present invention, the preset gamma correction conversion table generates a converted gamma correction conversion table through the gain control signal and the compensation control signal. The video signal is used as an access pointer to retrieve the contents of the converted gamma correction table. The content of the converted gamma correction conversion table represents the magnitude of the voltage for driving the liquid crystal display panel 45 .

[0085] image 3 It is a detailed diagram of the video signal system of the present invention. The video signal 105 is an analog voltage representing the brightness expected to emanate from the display panel 145 . The video signal 105 is the input of the analog / digital converter 110 . The A / D converter 110 converts the video signal 105 into a sampled digital data representing the magnitude of the video signal 105 . The digitized video signal 105 output by the analog / digital ...

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PUM

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Abstract

A full gain / compensation control system of gamma calibration for display controller comprises an original gamma calibration transformation table for providing preset brightness value to display, a gamma calibration conversion circuit for converting the logging value to be converted brightness value being places in converted gamma calibration transformation table which receives video signal for providing an indicator to the brightness value to drive display.

Description

technical field [0001] The present invention relates to a control system and method for a video display, in particular to controlling a video display [0002] Systems and methods for ratio and brightness. Background technique [0003] A color video display receives a digital or analog signal to indicate the magnitude of the main color luminance used by the display to generate a color image. There are many methods in common technology, which are used to generate these signals to stimulate the material in the display that is responsible for generating the stripe light. In a cathode ray tube (CRT), light is emitted by phosphors deposited on the surface of the CRT. An electron gun is stimulated by an input analog signal to generate moderate light emission, thereby forming the color components of the image. In a liquid crystal display (LCD), a voltage is applied to a polymeric material to twist to form a rotation of light polarization. The voltage value determines the amount ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20H04N5/202
Inventor 黄明松
Owner ETRON TECH INC