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Level shifter, gate driving circuit, and display device

A technology for gating drive circuits and display devices, which is applied to lighting devices, projection devices, stage devices, etc., can solve the problems of difficult display panel size, failure, and poor image quality.

Pending Publication Date: 2022-06-28
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since various lines and circuit elements are arranged in the non-display area of ​​the display panel, it is actually not easy to reduce the size of the non-display area of ​​the display panel.
[0005] Also, in the case of such a typical display device, insufficient charging time may result in poor image quality, and furthermore, gate drive may malfunction due to differences in gate signal characteristics, resulting in poor image quality

Method used

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  • Level shifter, gate driving circuit, and display device
  • Level shifter, gate driving circuit, and display device
  • Level shifter, gate driving circuit, and display device

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Embodiment Construction

[0069] In the following description of examples or embodiments of the present disclosure, reference will be made to the accompanying drawings, in which specific examples or embodiments that may be implemented are shown by way of illustration, and in which the same Icons and symbols may be used to represent the same or similar components. Furthermore, in the following description of examples or embodiments of the present disclosure, detailed descriptions of well-known functions and components incorporated herein will be omitted when it is determined that the description may obscure the subject matter in some embodiments of the present disclosure . Terms such as "includes," "has," "includes," "consists of," "composes of," and "forms" as used herein are generally intended to allow for the addition of other components, unless used in conjunction with the term "only." As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise.

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Abstract

The present disclosure relates to a level shifter, a gate driving circuit, and a display device, and when m gate signals are output using m clock signals, by controlling a signal waveform of a first clock signal among the m clock signals to be different from a signal waveform of an m-th clock signal, the level shifter is configured to output m gate signals. An effect of reducing a characteristic difference between strobe signals and thus improving image quality is provided.

Description

technical field [0001] The present disclosure relates to a level shifter, a gate driving circuit and a display device. Background technique [0002] With the advent of the information society, the demand for display devices for displaying images is increasing. To meet such demands, recently, various devices such as liquid crystal display (LCD) devices, electroluminescence display (ELD) devices including quantum dot light emitting display devices, and organic light emitting display (eg, OLED) devices have been developed and widely used. types of display devices. [0003] Generally, a display device charges a capacitor provided in each of a plurality of sub-pixels arranged on a display panel, and uses the charged capacitor for display driving. However, in such a typical display device, such capacitors in each sub-pixel may be undercharged, and thus result in degradation of image quality. [0004] In a typical display device, if the size of the non-display area of ​​the disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2310/0289G09G2310/0264G09G2310/0243G09G3/3233G09G3/3258G09G3/3266G09G3/3674G09G2310/08G09G2320/0233G09G2310/0291G09G3/2011A63J5/02B64B1/62B64B1/64B64C1/30B64C27/08B64C39/024B64D27/24B64D47/02F21S10/026F21Y2115/00G03B21/2046Y02T50/50Y02T50/60B64U10/30B64U30/20B64U50/19B64U50/13B64U10/10B64U2101/00B64D27/353G09G2310/0278
Inventor 黄洙珍孙美英金应圭慎弘縡张旼揆
Owner LG DISPLAY CO LTD