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Voltage compensation method and device, display device

A technology of voltage compensation and driving voltage, which is applied to static indicators, instruments, etc., can solve problems such as low charging efficiency and the influence of pixel circuit charging ability, and achieve the effect of ensuring charging ability and charging efficiency

Active Publication Date: 2020-06-09
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a voltage compensation method and device, and a display device, which can solve the problem that the electrical characteristics of transistors in the related art will be affected by temperature, which will affect the charging capability of the pixel circuit and cause the charging of the sub-light-emitting unit through the pixel circuit. The problem of low efficiency

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  • Voltage compensation method and device, display device
  • Voltage compensation method and device, display device
  • Voltage compensation method and device, display device

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Embodiment Construction

[0080] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0081] An embodiment of the present invention provides a display device. The display device may include: a voltage compensation device and a display panel. The display panel may include: a plurality of pixel units arranged in an array. Each pixel unit may include: a pixel circuit and a sub-light emitting unit. The pixel circuits in the same pixel unit are used to charge the sub-light emitting units in the pixel unit.

[0082] Optionally, the sub-light emitting unit may include: OLED. Each pixel circuit may include: a switch transistor, which is used to control whether to charge the sub-light emitting unit in the pixel unit where the switch transistor is located.

[0083] Wherein, the voltage compensating device is used to adjust th...

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Abstract

The invention discloses a voltage compensation method and device, and a display device, belonging to the field of display technology. The method includes: when the display panel is in a non-working state, acquiring the initial parameter value of the charging parameter of the first pixel circuit in the first pixel unit, the charging parameter is used to reflect the charging capability of the first pixel circuit; when the display panel is in the working state , acquire multiple target parameter values ​​of the charging parameters of the first pixel circuit, the multiple target parameter values ​​are determined according to different loading values ​​of the driving voltage; determine the target loading value, the target parameter value corresponding to the target loading value is according to the multiple target parameter values In the direction where the initial parameter value converges, the target parameter value among the multiple target parameter values ​​is the closest to the initial parameter value; based on the target loading value, the driving voltage is adjusted to compensate the driving voltage. The invention can ensure the charging capability of the pixel circuit and ensure the charging efficiency of the pixel circuit to the sub-light emitting unit.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a voltage compensation method and device, and a display device. Background technique [0002] An organic light-emitting diode (English: Organic Light-Emitting Diode, OLED for short) display panel includes a plurality of pixel units formed by intersections of a plurality of data lines and a plurality of gate lines, and the plurality of pixel units are arranged in an array. Each pixel unit includes: a pixel circuit and a sub-light emitting unit. The pixel circuit is used to charge the sub-light-emitting units to control the sub-light-emitting units to emit light, thereby realizing image display. [0003] In the related art, a pixel circuit usually includes a plurality of transistors. By inputting a driving signal to the pixel circuit, the conduction state of the transistor in the pixel circuit can be controlled, thereby controlling whether to charge the sub-light emitting unit. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225G09G3/3258
CPCG09G3/3225G09G3/3258G09G3/3233G09G2300/0861G09G2310/0262G09G2320/0295G09G2320/041G09G2320/0693G09G2310/0243G09G2310/0264
Inventor 王雨
Owner BOE TECH GRP CO LTD