Over-current protection circuit, display device, drive circuit of display device and over-current protection method

A technology of overcurrent protection circuit and drive circuit, which is applied in the direction of static indicators, instruments, etc., can solve the problems of damage to the display panel and affect the normal display of the display device, and achieve the effect of avoiding damage

Active Publication Date: 2020-09-04
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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Problems solved by technology

[0003] The present disclosure provides an overcurrent protection circuit, a display device drive circuit, a display device, and an overcurrent protection method, so as to solve the problem of affecting the display device when the working sequence of the gate drive circuit generated according to the abnormal display signal is abnormal. The normal display, the problem of causing damage to the display panel

Method used

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  • Over-current protection circuit, display device, drive circuit of display device and over-current protection method
  • Over-current protection circuit, display device, drive circuit of display device and over-current protection method
  • Over-current protection circuit, display device, drive circuit of display device and over-current protection method

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[0057] The technical solutions in some embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments provided in the present disclosure belong to the protection scope of the present disclosure.

[0058] Throughout the specification and claims, unless the context requires otherwise, the term "comprise" and other forms such as the third person singular "comprises" and the present participle "comprising" are used Interpreted as the meaning of openness and inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" example)" or "some examples" and the like are intended...

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Abstract

The invention provides an over-current protection circuit, a display device, a driving circuit of the display device and an over-current protection method, is applied to the technical field of display, and solves the problems of abnormal display and display panel damage caused by abnormal gate input signals due to abnormal display signals in the display device. The over-current protection circuitis configured to continuously detect a plurality of gate input signals input into a gate driving circuit, and comprises a sampling sub-circuit, a delay judgment sub-circuit and a counting control sub-circuit which are coupled in sequence. The over-current protection circuit outputs a second control signal for cutting off a signal input from the system board of the display device to the driving circuit of the display device when detecting that a gate input signal of which the voltage value is greater than a first preset voltage value exists in the plurality of gate input signals and a set condition is satisfied. The over-current protection circuit is used in a driving circuit of the display device.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular to an overcurrent protection circuit, a driving circuit of a display device, a display device, and an overcurrent protection method. Background technique [0002] In the display device, the function of the timing controller is to receive the display signal input by the system board, process the display signal, and generate the working sequence of the source driving circuit and the gate driving circuit, so that the source driving circuit and the gate driving circuit The circuit drives the display panel to display according to the received signal. When the display signal is abnormal, the working timing of the source drive circuit and the gate drive circuit generated by the timing controller according to the display signal will also be abnormal, thus affecting The normal display of the display device, and will cause damage to the display panel. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3208G09G3/36
CPCG09G3/32G09G3/3208G09G3/36G09G2330/04G09G2310/08G09G2330/12G09G5/18G09G3/2096G09G2310/0278H03K3/86G09G3/006G09G2310/0294H03H3/08
Inventor 袁先锋王建军刘晓石许俊波王睿刘媛媛乔玄玄
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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