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Pixel driving method and display panel

A technology of pixel driving circuit and thin film transistor, applied in static indicators, instruments, etc., can solve problems such as current instability, achieve uniform luminous brightness, improve display effect, and solve the effect of threshold voltage drift

Pending Publication Date: 2022-02-11
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a pixel driving method and a display panel, which can effectively compensate the threshold voltage of the driving thin film transistor, solve the problem of unstable current flowing through the light-emitting device caused by threshold voltage drift, and make the light-emitting device have uniform luminance. Improve the display effect of the screen

Method used

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  • Pixel driving method and display panel
  • Pixel driving method and display panel

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Embodiment Construction

[0028] 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.

[0029] Embodiments of the present application provide a driving method for a display device and a display device. By adjusting the grayscale value of a pixel unit, the problem of abnormal display caused by vertical crosstalk caused by parasitic capacitance to the pixel unit can be solved. It should be noted that the description sequence of the following embodiments is not intended to limit the preferred sequence of the embodiments. In addition, in the description of the present ...

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Abstract

The embodiment of the invention discloses a pixel driving circuit and a display panel. The pixel driving circuit comprises a first thin film transistor, a second thin film transistor, a third thin film transistor, a fourth thin film transistor, a fifth thin film transistor, a sixth thin film transistor, a first capacitor, a second capacitor, and a light-emitting device, wherein the first thin film transistor, the second thin film transistor, the third thin film transistor, the fourth thin film transistor, the fifth thin film transistor and the sixth thin film transistor are connected to a first scanning line, a second scanning line, a third scanning line, a data signal line, a reset signal line and a control signal line respectively. The pixel driving circuit can effectively compensate the threshold voltage of the driving thin film transistor, solves the problem that the current flowing through the light-emitting device is unstable due to threshold voltage drift, enables the light-emitting brightness of the light-emitting device to be uniform, and improves the display effect of a picture.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a pixel driving method and a display panel. Background technique [0002] Micro-semiconductor light-emitting diodes (Micro-LEDs) are current-driven light-emitting devices, and the luminance of Micro-LEDs is determined by the current flowing through the LED itself. The traditional Micro-LED adopts Active Matrix (AM), and its pixel driving circuit is usually 2T1C, which is a structure of two thin film transistors plus a capacitor to convert voltage into current. [0003] like figure 1 and figure 2 As shown, the existing pixel driving circuit has a 2T1C architecture, which includes a first thin film transistor T1 and a second thin film transistor T2. In a specific working process, in a frame (F1), when WR is at a high potential, T1 is turned on , V data Signal writes to C st One end of the data signal V data Relative to WR delay t 0 period, when WR is at low poten...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/32G09G2320/045
Inventor 张丽君
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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