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Display device

A display device and display panel technology, which is applied to static indicators, instruments, etc., can solve the problems of uneven brightness and darkness displayed by the display device, insufficient charging voltage of remote pixels, etc., and achieve the effect of improving uniformity

Pending Publication Date: 2022-05-03
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a display device to solve the problem of insufficient charging voltage of the existing remote pixels, which leads to the problem of uneven brightness displayed by the display device

Method used

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Embodiment Construction

[0058] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0059] In a display panel with large size, high resolution and high refresh rate, due to the increase in the length of the gate line and the data line, when the gate signal and the source signal are transmitted at the remote end, a signal will be generated due to the increase of the line impedance. The attenuation causes the signals received by the remote pixels to be delayed compared with the signals received by the near-end pixels, resulting in insufficient charging voltage of ...

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Abstract

The embodiment of the invention provides a display device, which comprises a display panel and a driving circuit, the display panel comprises a plurality of pixel electrodes, the plurality of pixel electrodes comprise near-end pixels and far-end pixels, and the driving circuit comprises a power supply sequence circuit used for generating a switching signal; a TFT switch; the control circuit is respectively connected with the power supply sequential circuit and the TFT switch; and the switch delay circuit is connected with the control circuit and is used for adjusting the duty ratio of the switch signal. The switching-off duration of the TFT switch is adjusted by setting the switch delay circuit, so that the charging duration of the far-end pixel is longer than the charging duration of the near-end pixel, and the charging voltage of the far-end pixel has voltage drop and is smaller than the charging voltage of the near-end pixel, so that the charging efficiency of the far-end pixel is improved. The charging duration of the far-end pixels is increased or the charging duration of the near-end pixels is reduced, so that the charging amount of the far-end pixels is close to or consistent with that of the near-end pixels, and the display uniformity of the display device is improved.

Description

technical field [0001] The present application belongs to the field of display technology, and in particular relates to a display device. Background technique [0002] With the development of display industry technology, large-size, high-resolution and high-refresh display panels are developing rapidly to meet the needs of ultra-high-definition applications. [0003] In a display panel with large size, high resolution and high refresh rate, due to the increase in the length of the gate line and the data line, when the gate signal and the source signal are transmitted at the remote end, a signal will be generated due to the increase of the line impedance. The attenuation causes the signals received by the remote pixels to be delayed compared with the signals received by the near-end pixels, resulting in insufficient charging voltage of the remote pixels, and thus the problem of uneven brightness and darkness displayed by the display device. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0233
Inventor 陈炜锋
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD