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A kind of oled display panel, its driving method and display device

A display panel and display area technology, applied to static indicators, instruments, semiconductor devices, etc., can solve the problem of uneven display

Active Publication Date: 2020-04-28
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an OLED display panel, a driving method thereof, and a display device to solve the problem of uneven display in the prior art

Method used

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  • A kind of oled display panel, its driving method and display device
  • A kind of oled display panel, its driving method and display device
  • A kind of oled display panel, its driving method and display device

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Embodiment Construction

[0027] exist figure 1 In the display panel shown, since the number of pixels in a row of pixels in the first display area B1 is greater than the number of pixels in a row of pixels in the second display area B2, each row of pixels in the first display area B1 and the second display area B2 are connected The loads of the scanning signal lines are different. by figure 2 Take the pixel circuit shown as an example. When the load on the scan line is different, the signal delay time of the scan line Scan2 will be different, resulting in different charging speeds of Vdata to the N1 node, and different charging speeds of the N1 node will result in different potentials of the N1 node. Finally, because the N1 node potential of the pixel circuit in the first display area B1 is inconsistent with the N1 node potential of the pixel circuit in the second display area B2, the luminescent current generated by the pixel circuit in the first display area B1 is different from that in the second...

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Abstract

The invention discloses an OLED display panel, its driving method and a display device. The power supply supplies high potential power supply voltage and low potential power supply voltage to each shift register unit respectively; and the power supply supplies the first shift register unit with The voltage difference between the high-potential power supply voltage and the low-potential power supply voltage is the first voltage difference, and the voltage difference between the high-potential power supply voltage and the low-potential power supply voltage provided by the power supply to the second shift register unit is the second voltage difference, The first voltage difference is not equal to the second voltage difference. Utilizing that the first voltage difference is not equal to the second voltage difference, the voltage amplitude of the scan signal received by the pixel circuit in the first display area is not equal to the voltage amplitude of the scan signal received by the pixel circuit in the second display area, so that the first display area The pixel circuits in the pixel circuit and the pixel circuits in the second display area have the same light emitting current when the data voltage is the same, so as to avoid the problem of uneven display.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display panel, a driving method thereof and a display device. Background technique [0002] With the development of display technology, the full screen has a large screen-to-body ratio and an ultra-narrow bezel. Compared with ordinary display screens, it can greatly improve the visual effect of the viewer, and thus has received widespread attention. At present, in a display device with a full screen such as a mobile phone, in order to realize the functions of Selfie, video call and fingerprint recognition, a front camera, an earpiece, a fingerprint recognition area or physical buttons are usually arranged on the front of the display device. [0003] In an organic light emitting (Organic Light Emitting Diode, OLED) display device, in order to realize full-screen display, such as figure 1 As shown, the camera 01, earpiece 02 and other devices are generally arranged in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3233G09G3/3266G09G2300/0426G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0251G09G2310/0262G09G2310/0286G09G2330/028H10K59/121G09G3/3258G09G2310/0264H10K59/12
Inventor 李玥向东旭朱仁远高娅娜周星耀
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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