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Display panel, overcurrent protection method thereof, and display device

An overcurrent protection and display device technology, applied in emergency protection circuit devices, emergency protection devices with automatic disconnection, circuit devices, etc., can solve problems such as burn-in and in-plane line short circuits.

Active Publication Date: 2019-05-03
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the application of the Gate Driver on Array (GOA) technology on the array substrate, there will be a short circuit in the plane, which will cause the problem of screen burn-in

Method used

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  • Display panel, overcurrent protection method thereof, and display device
  • Display panel, overcurrent protection method thereof, and display device
  • Display panel, overcurrent protection method thereof, and display device

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Embodiment Construction

[0041] Specific structural and functional details disclosed herein are representative only and for purposes of describing example embodiments of the present invention. This invention may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

[0042]In describing the present invention, it is to be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention. In addition, the ter...

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Abstract

The invention discloses an overcurrent protection method, a display panel and a display device, and the overcurrent protection method comprises the steps: setting at least two different detection times for a level period of a driving current, and starting at least two groups of corresponding over-current protection thresholds; respectively detecting at least two real-time currents for at least twodifferent detection times within the level period; comparing the real-time current values with corresponding overcurrent protection thresholds respectively, and if one or more real-time current values exceed the corresponding overcurrent protection threshold, stopping outputting the driving current so as to start overcurrent protection. The display panel is effectively prevented from continuouslyworking under a large short-circuit current, the screen burning problem caused by serious short circuit can be blocked and picked, and protection is more accurate.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display panel, an overcurrent protection method thereof, and a display device. Background technique [0002] With the development and progress of science and technology, liquid crystal displays have become the mainstream products of displays due to their thin body, power saving and low radiation, and have been widely used. Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal panel and a backlight module (Backlight Module). The working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates, and apply a driving voltage on the two glass substrates to control the rotation direction of the liquid crystal molecules, so as to refract the light from the backlight module to produce a picture. [0003] Among them, Thin Film Transistor-Liquid Crystal Dis...

Claims

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Application Information

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IPC IPC(8): H02H3/087H02H3/093G09G3/36
CPCH02H3/093G09G3/3677G09G2330/12G09G3/36G09G2310/08H02H3/087H02H3/0935
Inventor 杨继东
Owner HKC CORP LTD
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