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Amoled pixel drive circuit and timing control method

A technology of pixel drive circuit and scan control, applied in static indicators, instruments, etc., can solve the problems of small pixel size, complicated wiring, and unsatisfactory

Active Publication Date: 2020-12-01
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned AMOLED pixel drive circuit has multiple signal lines such as the first scanning control signal line S1, two second scanning control signal lines S2, and the reference voltage signal line VINT. The wiring is complicated and cannot meet the needs of smaller pixel sizes.

Method used

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  • Amoled pixel drive circuit and timing control method
  • Amoled pixel drive circuit and timing control method
  • Amoled pixel drive circuit and timing control method

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0053] Please refer to figure 2 , the present invention provides an AMOLED pixel drive circuit, including a first thin film transistor T1, a second thin film transistor T2, a third thin film transistor T3, a fourth thin film transistor T4, a fifth thin film transistor T5, a capacitor C1 and an organic light emitting diode D1;

[0054] The gate of the first thin film transistor T1 is electrically connected to the scan control signal line Sn, the first end is e...

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PUM

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Abstract

The invention relates to the technical field of display. The invention discloses an AMOLED time sequence control circuit and a time sequence control method. The time sequence control 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 capacitor and an organic light emitting diode. The time sequence control circuit further comprises a seventh thin film transistor arranged between the second end of the first thin film transistor and the first node, and a sixth thin film transistor arranged between the second end of the first thin film transistor and the third thin film transistor. The second thin film transistor and the sixth thin film transistor are symmetrically arrangedand have the same threshold, the threshold voltage of the driving thin film transistor can be compensated, and the time sequence control circuit can reduce wiring in the panel so as to adapt to a small-size pixel space.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an AMOLED pixel driving circuit and a timing control method. Background technique [0002] Such as figure 1 As shown, an existing AMOLED pixel drive circuit has a 7T1C structure, that is, a structure of seven thin film transistors plus a capacitor, including: a first thin film transistor T10, a second thin film transistor T20, a third thin film transistor T30, the fourth thin film transistor T40, the fifth thin film transistor T50, the sixth thin film transistor T60, the seventh thin film transistor T70 and the capacitor C10, wherein the gate of the first thin film transistor T10 is electrically connected to the second scanning control signal line S2 , the first end is electrically connected to the data signal line DATA, and the second end is electrically connected to the first end of the second thin film transistor T20 and the first end of the fourth thin film transistor T40 t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208
Inventor 周兴雨
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD