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Image display system and its display driver module

A driving module and image display technology, applied in static indicators, static electricity, instruments, etc., can solve the problems of easy damage, lack of practical application, and increase the cost of display driver chip area, so as to improve the electrostatic discharge protection ability and cost. effect of benefit

Active Publication Date: 2019-05-31
NOVATEK MICROELECTRONICS CORP
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AI Technical Summary

Problems solved by technology

The display driver chip with insufficient ability to withstand electrostatic discharge is easily damaged during the test process. Therefore, in order to improve the ability of the display driver chip to withstand electrostatic discharge, the existing technology may directly adjust the layout area of ​​the original electrostatic protection components inside the display driver chip. , but this method will greatly increase the area cost of the display driver chip, even if it can improve the ability of the display driver chip to withstand electrostatic discharge, but it is still stretched in practical applications

Method used

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  • Image display system and its display driver module
  • Image display system and its display driver module
  • Image display system and its display driver module

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Embodiment Construction

[0045] Hereinafter, several examples are presented to illustrate the present invention, but the present invention is not limited to the illustrated examples. Appropriate combinations are also allowed between the embodiments.

[0046] figure 1 A schematic diagram showing an outline of an image display system according to a related example of the present invention. Please refer to figure 1 , the image display system 100 of this related example includes a display panel 110 , a display driving module 120 and a system circuit block 130 . The display panel 110 is driven by the display driver module 120 to display an image frame. The system circuit block 130 is used for providing a plurality of system control signals to control the display driving module 120 . In the related example, the display driving module 120 includes a driving circuit part 122 and a non-driving circuit part 124 . The driving circuit part 122 includes one or more driving channels 123 - 1 to 123 -N for drivi...

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Abstract

A display driving module includes a driving circuit part and a non-driving circuit part. The driving circuit part is controlled by the system circuit block. The driving circuit part includes driving channels to drive the display panel. The first electrostatic protection element is configured in the drive circuit part corresponding to the drive channel to provide at least one electrostatic discharge path. The non-driving circuit part is used to electrically connect the system circuit block, the driving circuit part and the display panel. At least one of the second electrostatic protection elements corresponds to the first electrostatic protection element and is configured in at least one of the driving circuit part, the non-driving circuit part, the system circuit block and the display panel. The second electrostatic protection element is used to cooperate with the corresponding first electrostatic protection element to provide an electrostatic discharge path. An image display system including a display driver module is also proposed.

Description

technical field [0001] The present invention relates to an image display system and its display driving module, and in particular to an image display system with electrostatic discharge (ESD) protection function and its display driving module. Background technique [0002] Generally speaking, in an image display system, a display driver chip used to drive a display panel usually needs to pass an electrostatic discharge protection test after being manufactured. The electrostatic discharge protection test is, for example, inputting a test signal to a test pad to test the ability of the display driver chip to withstand electrostatic discharge. The display driver chip with insufficient ability to withstand electrostatic discharge is easily damaged during the test process. Therefore, in order to improve the ability of the display driver chip to withstand electrostatic discharge, the existing technology may directly adjust the layout area of ​​the original electrostatic protection...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20H05F3/00
Inventor 黄如琳程智修卓均勇吴嘉恩
Owner NOVATEK MICROELECTRONICS CORP
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