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LCD driving circuit for supporting multi-frame rate display

A driving circuit and frame rate technology, applied in the field of LCD driving, can solve problems such as poor display effect of a single common voltage

Inactive Publication Date: 2018-11-23
TRULY SEMICON
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is the technical problem existing in the prior art that the use of a single common voltage has poor display effect

Method used

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  • LCD driving circuit for supporting multi-frame rate display

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Embodiment 1

[0021] This embodiment provides an LCD driving circuit for supporting multiple frame rate displays, such as figure 1 , the LCD drive circuit includes a common voltage output circuit, the common voltage output circuit has two common voltage output terminals, one common voltage output terminal is used for low-frequency driving, and the other common voltage output terminal is used for high-frequency driving.

[0022] The working process of the present invention: the two output ends of the common voltage output end, one for low-frequency drive and one for high-frequency drive, the low-frequency drive corresponds to the low power consumption mode, and the high-frequency drive corresponds to the normal working mode. Respectively, after the mode is determined first, the common voltage output circuit determines to output a common voltage, that is, VCOM. The VCOM is determined according to the characteristics of low frequency operation and high frequency operation. Only 2 gray levels ...

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Abstract

The present invention relates to an LCD driving circuit for supporting multi-frame rate display. The invention aims to solve the technical problem of poor display performance under a normal mode and alow-frequency mode. The LCD driving circuit comprises a common voltage output circuit; the common voltage output circuit is provided with two common voltage output ends, wherein one of the common voltage output ends is used for low-frequency driving, and the other common voltage output end is used for high-frequency driving. With the LCD driving circuit for supporting multi-frame rate display adopted, the above technical problem can be solved. The LCD driving circuit for supporting multi-frame rate display can be applied to LCD display.

Description

technical field [0001] The invention relates to the field of LCD driving, in particular to an LCD driving circuit for supporting multiple frame rate displays. Background technique [0002] At present, ultra-low power liquid crystal display panel (ULTRA-LOW POWER LCD) is a development trend of LCD display panel, and major LCD manufacturers are developing their own low power consumption products. The driver IC circuit can support the LCD to work in normal mode and low frequency mode to reduce its power consumption. But the common voltage in these two states will be different, which will cause flicker. [0003] The existing LCD driving circuit adopts a single common electrode voltage mode, and the same common voltage is used in the normal mode and the low frequency mode, resulting in the failure to use the best common voltage in the two modes, and it is impossible to find a suitable gray scale , the display effect is poor, and there will be flickering. In order to solve the ...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3696
Inventor 廖亿彬康泽威柳发霖刘忠余李林何基强
Owner TRULY SEMICON
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