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A driving device and method for a liquid crystal display panel, and a display device

A liquid crystal display panel and drive device technology, applied to static indicators, instruments, etc., can solve problems such as display panel Waterfall, and achieve the effect of reducing insufficient charging rate

Active Publication Date: 2022-02-01
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a driving device and method of a liquid crystal display panel and a display device, which are used to solve the technical problem that the driving device in the prior art will cause poor water fall of the display panel

Method used

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  • A driving device and method for a liquid crystal display panel, and a display device
  • A driving device and method for a liquid crystal display panel, and a display device
  • A driving device and method for a liquid crystal display panel, and a display device

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0037] Because light can change the conductor characteristics of the active layer in the display panel, resulting in a longer charging delay when charging with light than when there is no light, so the delay into the charging state is delayed, and the actual charging time is shorter. Short, the charging rate is insufficient, and the brightness of the display panel is low. At present, the brightness of the backlight module controlling the LCD panel is controlled by PWM waves, so the LCD panel is sometimes illuminated and sometimes not illuminated, which causes the LCD panel to cause horizontal block due to brightness differences, that is, poor water fall.

[0038] For example,...

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Abstract

The present application discloses a driving device and method of a liquid crystal display panel and a display device, which are used to solve the technical problem that the driving device in the prior art may cause poor Water fall of the display panel. The driving device includes: a power circuit for providing a first control signal and a second control signal, the potential of the first control signal is higher than the potential of the second control signal; the voltage selection module is electrically connected with the power circuit, and is used for The duty cycle of the brightness control signal used to adjust the luminance of the backlight module is selected to output the corresponding first control signal or the second control signal; the level conversion circuit is connected with the voltage selection module, and is used for according to the received first control signal A control signal or a second control signal generates a corresponding clock signal; the row scan driving circuit is electrically connected to the level conversion circuit, and is used to generate a scan signal for the electrically connected gate line according to the received clock signal.

Description

technical field [0001] The present application relates to the technical field of semiconductors, in particular to a driving device and method for a liquid crystal display panel and a display device. Background technique [0002] An important part of an electronic device to realize a display function is a display, and a liquid crystal display is a commonly used display. The liquid crystal display has a backlight module and a display module, and the driving circuit drives and adjusts the brightness of the backlight module. At present, a pulse width modulation (Pulse Width Modulation, PWM) method is used to adjust the brightness of the backlight, that is, the brightness of the backlight module is adjusted by changing the duty ratio of the PWM signal under a certain frequency condition. When the proportion of H in the high level of PWM is larger, the overall brightness of the display is higher; otherwise, the proportion of L in low level of PWM is larger, and the overall bright...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/3406G09G3/3413G09G3/3677
Inventor 梁云云周留刚戴珂尹晓峰方鹏军张霖熊玉龙孙建伟韩屹湛李涛瞿振林何浏李清汪俊权宇
Owner BOE TECH GRP CO LTD
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