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Pixel circuit, driving method thereof, and display device

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

Active Publication Date: 2019-07-26
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

[0035] 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.

[0036] "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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PUM

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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; a first switching circuit configured to transmit a voltage from the data line when turned on in response to the first scan signal from the first scan line; a driving circuit, comprising: a first transistor, the control end of the first transistor is configured to be electrically connected to the first switching circuit, the first end of the first transistor is electrically connected to the first voltage end, andthe second end of the first transistor is The anode of the light-emitting element is electrically connected; a capacitor that the first end of the capacitor is electrically connected to the first voltage end, and the second end of the capacitor is electrically connected to the first switch circuit; a second switching circuit configured to, in response to the second scan signal from the second scanline, stabilize the potential on the data line at the first and second fixed potentials respectively, wherein the first fixed potential The light emitting element is caused to emit light, and the second fixed potential causes the first transistor to be turned off.

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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IPC IPC(8): G09G3/3258
CPCG09G3/3258G09G3/3233G09G2300/0819G09G2300/0842G09G2310/0251G09G2310/0262G09G2320/0285G09G2320/045G09G3/3266G09G3/3275G09G2310/0278
Inventor 殷新社
Owner BOE TECH GRP CO LTD