Pixel circuit, driving method, organic light emitting display panel and display device

A technology of pixel circuit and lighting control, applied in static indicators, instruments, etc., can solve the problems of uneven brightness of lighting, uneven brightness of OLED panel pixels, etc.

Inactive Publication Date: 2018-10-16
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a pixel circuit, a driving method, an organic light-emitting display panel, and a display device, which are used to solve the problems of uneven brightness of each pixel and uneven overall luminous brightness in an OLED panel

Method used

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  • Pixel circuit, driving method, organic light emitting display panel and display device
  • Pixel circuit, driving method, organic light emitting display panel and display device
  • Pixel circuit, driving method, organic light emitting display panel and display device

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] The shapes and sizes of the components in the drawings do not reflect the real scale, but are only intended to schematically illustrate the content of the present invention.

[0053] A pixel circuit provided by an embodiment of the present invention, such as figure 1 As shown, it includes: a threshold compensation module 10, a capacitor module 20, a lighting control module 30, a data writing module 40, a driving module 50 and a l...

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Abstract

The invention discloses a pixel circuit, driving method, organic light emitting display panel and display device. The pixel circuit comprises a threshold compensation module, a capacitor module, a light emitting control module, a data writing module, a driving module and a light emitting module; the threshold compensation module transmits a reference signal provided by a data signal terminal to afirst node under control of a reset signal terminal, transmits a initialization signal provided by an initial signal terminal to the light emitting control module, connects the light emitting controlmodule, the driving module and a secondary node, and stores the threshold voltage of the driving module through the capacitor module; the data writing module transmits a data signal provided by the data signal terminal to the first node under control of a scanning signal terminal, and stores voltage of the data signal through the capacitor module; and the light emitting control module connects thedriving module and the light emitting module under control of a light emitting control signal terminal to enable the light emitting module to emit light. The problems of threshold voltage shift and voltage drop of a power supply are solved by the five modules through cooperation.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel circuit, a driving method, an organic light-emitting display panel and a display device. Background technique [0002] At present, the flexible screen technology of active matrix organic light emitting diode (Active Matrix Organic Light Emitting Display, AMOLED) is becoming more and more mature. , LCD) next-generation display. [0003] The pixels in the OLED panel are driven to emit light by the current generated by the Driving Thin Film Transistor (DTFT) in a saturated state, but the current OLED panel manufacturing process is difficult to ensure the uniformity of the threshold voltage of the DTFT, and the OLED panel During use, the threshold voltage of the DTFT will drift to different degrees, which will cause the problem of uneven brightness of each pixel in the OLED panel. [0004] In addition, with the development of display technology, OLED display devices with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0626G09G3/3233G09G3/3258G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0248G09G2310/08G09G2300/0426
Inventor 肖云升刘庭良马宏伟
Owner BOE TECH GRP CO LTD
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