Organic light-emitting display panel and display device

A light-emitting display, organic technology, applied in static indicators, instruments, semiconductor devices, etc., can solve the problems of poor display uniformity of display panels

Active Publication Date: 2018-05-04
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an organic light-emitting display panel and a display device to alleviate the problem of poor display uniformity of the display panel in the prior art

Method used

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  • Organic light-emitting display panel and display device
  • Organic light-emitting display panel and display device
  • Organic light-emitting display panel and display device

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Embodiment Construction

[0030] In OLED display panels, refer to Figure 2c , the display area (such as areas A1 and A2 in the figure) includes a plurality of power supply voltage signal lines (PVDD), each PVDD signal line is connected to a column of pixels, and the driver chip (IC) supplies power to the display area through multiple PVDD signal lines. Each pixel provides power to drive the LED in each pixel to emit light. Compared with the second display area A2, the number of pixels in a column of pixels in the first display area A1 is less, so the total capacitance of the storage capacitor in a column of pixels is smaller, and the voltage drop (IR_drop) on each PVDD signal line Smaller, in the same charging time, the charging degree of the storage capacitor of each pixel in the first display area A1 (that is, the ratio of the actual charging amount to the maximum storage capacity of the storage capacitor) is relatively high. For an OLED display panel, one The higher the charging degree of the stor...

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Abstract

The invention discloses an organic light-emitting display panel and a display device. The display area of the display panel is divided into a first display area and a second display area. The number of pixels in each column of pixels in the first display area is smaller than the number of pixels in each column of pixels in the second display area. Storage capacitors, in one-to-one correspondence with the pixels and connected with power supply voltage signal lines, are arranged in the display area. Compensation capacitors, in one-to-one correspondence with the pixels and connected with the power supply voltage signal lines, are arranged in at least one part of the region of the first display area. The sum of the capacitance values of one storage capacitor and one compensation capacitor corresponding to any pixel in the at least one part of the region of the first display area is larger than the capacitance value of one storage capacitor corresponding to any pixel in the second display area. Through setting compensation capacitors in one-to-one correspondence with the pixels in at least one part of the region of the first display area, the display uniformity of the display panel is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic light-emitting display panel and a display device. Background technique [0002] In the field of display, Organic Light-Emitting Diode (OLED) has the advantages of self-luminescence, fast response, wide viewing angle, high brightness, bright color, light and thin, etc., and is considered to be the next generation display technology. [0003] With the development of display technology, the full screen has a large screen-to-body ratio and ultra-narrow bezels. Compared with ordinary display screens, it can greatly improve the visual effect of the viewer, and thus is favored by consumers. 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 set on the front of the display dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32G09G3/3225
CPCG09G3/3225H10K59/122H10K59/123H10K59/1216H10K59/131
Inventor 李波
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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