Level conversion device of display panel, control method thereof and display panel

A technology of a display panel and a conversion device, which is applied to static indicators, instruments, etc., can solve the problems of a black screen when the display panel is turned on, a black screen when it is turned on, etc., and achieves the effect of avoiding the bad phenomenon of a black screen when turning on.

Active Publication Date: 2019-08-02
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The display panel in the related art occasionally has a black screen when starting up, but the related

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  • Level conversion device of display panel, control method thereof and display panel
  • Level conversion device of display panel, control method thereof and display panel
  • Level conversion device of display panel, control method thereof and display panel

Examples

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[0029] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] Before describing the level conversion device of the display panel and the control method thereof, and the display panel in the embodiments of the present invention with reference to the accompanying drawings, first refer to the attached figure 2 Let's introduce the level conversion device of the display panel in the related art.

[0031] In related technologies, a black screen may occasionally appear on the display panel at startup. The inventor of the present application has discovered thro...

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Abstract

The invention provides a level conversion device of a display panel, a control method of the level conversion device and the display panel. The device comprises a first sensor, a second sensor and a controller, a plurality of level conversion modules, wherein each level conversion module comprises a level converter, the input end of the level converter is electrically connected with the corresponding signal output end in the time sequence control chip, and when the power end of the level converter is connected with a first power supply, the level converter receives a to-be-converted signal output by the corresponding signal output end and converts and amplifies the to-be-converted signal; and the control circuit is electrically connected with the power supply end of the level converter andthe first power supply respectively, and the control circuit is used for controlling the power supply end of the level converter to be connected with the first power supply when a reset completion signal of the time sequence control chip is obtained. Therefore, the phenomenon that a plurality of signals to be converted are pulled up at the same time due to the unstable state of the GPO port before the time sequence control chip is reset can be avoided, and the undesirable phenomenon of starting up a black screen due to PMIC pumping protection can be avoided.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a level conversion device for a display panel, a display panel, and a control method for the level conversion device for a display panel. Background technique [0002] As an output device capable of visually displaying electronic information, a display panel is widely used in various occasions such as homes and workplaces. The display panel in the related art may occasionally have a black screen when starting up, but the related art does not provide an effective means to solve the problem of the black screen when starting up. Contents of the invention [0003] The inventor of the present application has found through research that: before the timing control chip completes the program download, some GPO (General-purpose output, general-purpose output) ports are in an unknown state, that is, the GPO port may output a high level or a low power output. flat. When several...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3696
Inventor 许炜泽赖意强吴汉
Owner BOE TECH GRP CO LTD
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