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Pixel circuit, driving method thereof, and display device

A pixel circuit, non-display technology, applied to static indicators, instruments, etc., can solve the problems of different display brightness and uneven display brightness of the display panel

Active Publication Date: 2022-04-26
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This results in different display brightness for different pixels, resulting in uneven display brightness of the display panel

Method used

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  • Pixel circuit, driving method thereof, and display device
  • Pixel circuit, driving method thereof, and display device
  • Pixel circuit, driving method thereof, and display device

Examples

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Embodiment Construction

[0034] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.

[0035] "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distin...

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Abstract

The present disclosure provides a pixel circuit, a driving method thereof, and a display device. The pixel circuit includes: a light emitting element including an anode and a cathode electrically connected to a first voltage terminal; a control circuit configured to respond to a control signal from a control line On or off; the first switch circuit is configured to transmit the voltage from the data line in the case of being turned on in response to the first scan signal from the first scan line; the drive circuit includes: a first transistor, which controls end is electrically connected to the first switch circuit, the first end is electrically connected to the second voltage end, the second end is electrically connected to the control circuit; and the capacitor is electrically connected to the second voltage end at the first end, and the second end is electrically connected to the first The switch circuit is electrically connected; the second switch circuit is configured to respond to the second scan signal from the second scan line, and in the case of conduction, the potentials on the data lines are respectively stabilized at first fixed potentials to make the light emitting elements emit light and a second fixed potential that turns off the first transistor.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular to a pixel circuit, a driving method thereof, and a display device. Background technique [0002] Due to reasons such as the manufacturing process or the characteristics of the transistor itself, the threshold voltages of the driving transistors in different pixels of the OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display panel may be different at the same time. In addition, the threshold voltage of the driving transistor in the same pixel may also be different at different times, that is, the threshold voltage of the driving transistor drifts. [0003] Therefore, even in the same gray scale, due to the difference in the threshold voltage of the driving transistor, the driving current for driving the OLED in different pixels will be different. This results in different display luminances of different pixels, resulting in non-uniform display lumi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208G09G3/3266
CPCG09G3/3208G09G3/3266G09G2300/0426G09G2300/0814G09G2300/0819G09G2300/0866G09G2310/08G09G3/32G09G3/3233G09G3/2092G09G2310/0278G09G2310/063G09G2330/028
Inventor 殷新社
Owner BOE TECH GRP CO LTD