Display panel

A display panel and transistor technology, applied to static indicators, instruments, electrical components, etc., can solve problems such as large leakage current

Active Publication Date: 2022-03-22
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, LTPS has an Achilles' heel, which is the large leakage current, especially when the flicker is serious at low frequency display.

Method used

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the 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.

[0048] In the description of the present application, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more features, and thus should not be construed as limiting the present application.

[0049]The transisto...

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PUM

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Abstract

The invention discloses a display panel. The display panel comprises a plurality of sub-pixels, each sub-pixel comprises a driving circuit, and each driving circuit comprises a light-emitting device, a driving transistor, a first transistor, a first capacitor, a second transistor and a third transistor. A drain electrode of a first transistor is electrically connected with a grid electrode of a driving transistor, a source electrode of a third transistor is electrically connected with a source electrode of the first transistor, the first transistor is an oxide thin film transistor, and after the first transistor is closed, a light-emitting device is turned on to emit light. And after the first transistor is closed, the low leakage characteristic of the oxide thin film transistor is utilized to suppress the grid potential change of the driving transistor within one frame time, the potential stability of the grid of the driving transistor is improved, and the light emitting uniformity of the light emitting device is further ensured, so that leakage is controlled through the oxide thin film transistor, and high-quality display is realized. And low frequency and low power consumption are achieved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display panel. Background technique [0002] With the development of multimedia, display devices become more and more important. Correspondingly, the requirements for various types of display devices are getting higher and higher, especially in the field of smart phones, ultra-high-frequency drive displays, low-power drive displays, and low-frequency drive displays are all current and future development demand directions. [0003] P-channel metal oxide semiconductor field effect transistors (PMOS) are widely used as transistors for display devices, and low temperature polysilicon (LTPS) is widely used in the field of mobile phones. However, an Achilles' heel of LTPS is that the leakage current is relatively large, especially when displaying at low frequencies, the flicker is serious. [0004] In view of this, prior art needs improvement. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32G09G3/3258
CPCG09G3/3258H10K59/121H10K59/12
Inventor 王选芸戴超秦芳
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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