Display panel, driving method and display device

A technology of display panels and drive modules, applied in static indicators, instruments, etc., can solve the problems of easy perceptibility, long-time brightness change process, slow change, etc.

Active Publication Date: 2021-04-09
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing OLED display process, when two different pictures are displayed, due to the difference in picture brightness, there will be a slow change process in the picture brightness during the switching process, and the brightness change

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  • Display panel, driving method and display device
  • Display panel, driving method and display device
  • Display panel, driving method and display device

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0034] figure 1 It is a schematic diagram of the effect of time screen switching on the existing display panel, such as figure 1 As shown, in the time display screen, when the display screen is switched from 1:05 to 1:06, the partial screen (as shown in the enlarged area in the figure) needs to switch from black state to white state, but the brightness may not reach normal The problem of white state brightness will also affect the display effect. figure 2 It is the characteristic curve of the threshold voltage ...

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Abstract

The embodiment of the invention discloses a display panel, a driving method and a display device. The display panel comprises a substrate base plate, wherein the sub-pixels are located on one side of the substrate base plate; a switch module; wherein the first end is electrically connected with the first end of the driving module, and the second end is connected with the bias compensation voltage end; the picture updating period comprises a data writing stage and a maintaining stage; the maintaining stage comprises a first stage and a second stage; the driving module is used for generating a driving current according to the data voltage transmitted by the data writing module in a data writing stage; the driving circuit is also used for providing driving current for the light-emitting element in a second stage; the switch module is used for providing bias compensation voltage for the first end of the driving module in a first stage. The problem of insufficient brightness of an existing display panel due to the hysteresis effect of the driving transistor is solved, the offset of the bias voltage of the driving transistor can be reduced in advance, the electrical performance of the driving transistor is improved, the accuracy of the light-emitting brightness in the light-emitting stage is guaranteed, and the display effect of the display panel is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel, a driving method, and a display device. Background technique [0002] A pixel circuit in an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display realizes a display function by controlling a driving current flowing through the OLED through a driving transistor. The magnitude of the driving current is related to the characteristic parameters of the driving transistor including the threshold voltage. [0003] In the existing OLED display process, when two different pictures are displayed, due to the difference in picture brightness, there will be a slow change process in the picture brightness during the switching process, and the brightness change process takes a long time, which is easy for human eyes to detect. As a result, partial areas of the screen will be darkened, resulting in a poor display effect of the scr...

Claims

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Application Information

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IPC IPC(8): G09G3/3208G09G3/3233G09G3/3291
CPCG09G3/3208G09G3/3233G09G3/3291G09G2320/0233G09G2300/0842G09G2300/0861G09G2310/0251G09G2310/0262G09G2300/0819G09G2310/0297G09G2310/0272
Inventor 张蒙蒙周星耀高娅娜
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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