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Pulse generation circuit and display device capable of regulating picture displaying brightness

A technology for generating circuits and display devices, used in static indicators, instruments, etc., can solve the problems of reduced display brightness and low maximum brightness of liquid crystal displays, reduce differences, improve display brightness, and solve large viewing angles. Whitening and grayscale reverse effect

Active Publication Date: 2007-11-07
AU OPTRONICS CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the liquid crystal display using AMVA technology displays the maximum brightness (that is, the maximum gray scale value of the screen is 255), its internal circuit design will cause the display brightness of the liquid crystal display to decrease, and the maximum brightness it can display is lower than that of the used The maximum brightness that the MVA technology LCD can display

Method used

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  • Pulse generation circuit and display device capable of regulating picture displaying brightness

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Embodiment Construction

[0031] After referring to the accompanying drawings and the implementation methods described later, those skilled in the art can understand other objectives of the present invention, as well as the technical means and implementation methods of the present invention.

[0032] The first embodiment of the present invention, as shown in FIG. 1, is a display device 1, which includes a display panel 101, a gate drive circuit 103, a source drive circuit 105, a pulse generation circuit 107, and a source control circuit. device 109. When the display panel 101 intends to display a picture of a video signal 100 , the display panel 101 needs to be driven by the gate driving circuit 103 and the source driving circuit 105 . The source driving circuit 105 receives the source signal 102 generated by the source controller 109 after processing the video signal 100 to work. The display panel 101 may be a liquid crystal display (liquid crystal display; LCD) array or other types of display arrays...

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Abstract

This invention provides a pulse generation circuit and a display device capable of adjusting display brightness of menus, in which, said display device includes a display panel, a grid driving circuit and a pulse generation circuit, said display panel is used in displaying a menu, said grid driving circuit drives said display panel based on a pulse signal generated by said pulse generation circuit including a histogram analysis unit and a grid pulse variable device, and the histogram analysis unit is used in computing gray scale proportion value and comparing with the critical value to generate a control signal, the working time of the pulse signal is different along with the response to the control signals.

Description

technical field [0001] The present invention relates to a pulse generation circuit and a display device capable of adjusting display brightness of a picture; in particular, it relates to a pulse generation circuit and a display device capable of calculating the grayscale value distribution of a picture to adjust the display brightness of the picture. Background technique [0002] With the advancement of science and technology, various electronic products have become an indispensable part of people's life. Among them, the display is an important component of multimedia electronic products. The thin film transistor liquid crystal display (thin filmtransistor liquid crystal display, TFT LCD) has the advantages of power saving, no radiation, small size, low power consumption, no space, right-angle plane, high resolution, stable image quality, etc., and has gradually replaced A traditional cathode ray tube display (cathode ray tube display, CRT display) is widely used in display...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/20
Inventor 侯鸿龙黄乙白廖上嘉曹正翰张庭瑞谢曜任
Owner AU OPTRONICS CORP