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A driving circuit, a display panel and a display device

A technology for driving circuit boards and driving circuits, applied in the fields of driving circuits, display panels and display devices, can solve the problems of uneven brightness of display panels, reduced display quality of display panels, inconsistent signal transmission, etc.

Active Publication Date: 2020-08-18
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the substrate wiring has a certain resistance value, the resistance of the fan-out line connected to the next gate driver chip will be larger than the resistance value of the fan-out line connected to the previous gate driver chip, so that the signal between adjacent gate driver chips Inconsistent transmission makes the brightness of the display panel uneven and the display quality of the display panel deteriorates

Method used

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  • A driving circuit, a display panel and a display device
  • A driving circuit, a display panel and a display device
  • A driving circuit, a display panel and a display device

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Embodiment Construction

[0024] It should be understood that the terminology and specific structural and functional details disclosed herein are representative only for describing specific embodiments, but the application can be embodied in many alternative forms and should not be construed as merely Be limited by the examples set forth herein.

[0025] In the description of the present application, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating relative importance, or implicitly indicating the quantity of indicated technical features. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features; "plurality" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, possible presence or addition of one or more other features, integers, steps, operations, units, components and / or combinations thereof.

[0026] Al...

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Abstract

The invention discloses a driving circuit, a display panel and a display device. The driving circuit includes a driving circuit board; a plurality of gate driving chips connected to the driving circuit board; connecting lines connecting the driving circuit board and the gate driving chips; connecting lines between the gate driving chips and the gate lines of the display panel Fan-out line, the fan-out line connected with the same gate driver chip forms a fan-out area, and the fan-out area is arranged in accordance with the transmission direction of the signal; and the additional conductive film arranged in the fan-out area, the additional conductive film set in each fan-out area The effective area of ​​the conductive film is different, decreasing gradually from the first fan-out area to the rear. The present invention adds an additional conductive film in the fan-out area to form a compensation capacitor to increase the time constant of the signal delay in the front fan-out area, so that the time constants of the signal delay in each fan-out area are equal, so that each fan-out area The signal is output synchronously.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a driving circuit, a display panel and a display device. Background technique [0002] With the advancement of science and technology, liquid crystal displays with many advantages such as power saving, no radiation, small size, low power consumption, right-angle plane, high resolution, and stable image quality, especially for various information products such as mobile phones, Products such as notebook computers, digital cameras, PDAs, and LCD screens are becoming more and more popular, which also greatly increases the demand for LCD displays. A liquid crystal display usually includes at least two driver chip connections for transmitting gate drive signals. Two adjacent gate driving chips are also connected through a substrate wire (Wire on Array, WOA). Each gate driver chip is respectively connected to a group of fanout lines (Fanout) on the substrate, and is connecte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G2320/0233H01L27/124G02F1/1345G02F1/13306G02F1/13452G02F1/136286
Inventor 刘忠念
Owner HKC CORP LTD
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