OLED display panel and OLED display device

A display panel and power supply technology, which is applied to electrical components, electric solid-state devices, circuits, etc., can solve the problems of OLED display panel brightness difference and power signal size difference, etc.

Inactive Publication Date: 2019-01-08
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The power supply signal is generally transmitted from one end of the power supply wiring to the other end. Due to the existence of the resistance of the power supply wiring, there will be a certain voltage drop (IR drop) on the power supply wiring, so that the power supply at each position of the OLED display panel Different signal sizes cause brightness differences at various positions on the OLED display panel

Method used

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  • OLED display panel and OLED display device
  • OLED display panel and OLED display device
  • OLED display panel and OLED display device

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Among them, the drawings are only used for exemplary description, and they are only schematic diagrams and cannot be understood as a limitation of the patent.

[0020] The present invention provides an OLED display device. The OLED display device can be various types of display devices such as mobile phones, computers, televisions, and e-readers. The OLED display panel includes an OLED display panel with a uniform display effect in each position, so that the OLED display panel has a good display effect.

[0021] See figure 1 , The present invention provides an OLED display panel 100. The OLED display panel 100 includes a plurality of driving transistors 10 arranged in an array, a plurality of power traces 20 arranged in parallel at intervals, and a plurality of first auxiliary power t...

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PUM

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Abstract

The invention provides an OLED display panel, which is provided with a first auxiliary power supply trace parallel to the power supply trace and located at different layers, and electrically connectsthe first auxiliary power supply trace and the power supply trace through a plurality of through holes arranged at intervals. Corresponding to paralleling the first auxiliary power supply trace on thepower supply trace, the total resistance of the power supply trace and the first auxiliary power supply trace after parallel connection is reduced, so that when the power supply signal is transmittedon the structure in which the power supply trace is connected in parallel with the first auxiliary power supply trace, the voltage drop at each position is reduced, the difference of the power supplysignal transmitted to each pixel unit is smaller, and the display at each position of the OLED display panel is more uniform.

Description

Technical field [0001] The present invention relates to the field of display technology, in particular to an OLED display panel and an OLED display device. Background technique [0002] OLED (Organic Light-Emitting Diode, organic light-emitting diode) display panels have the characteristics of fast response speed, color purity and brightness, high contrast, viewing angle light, and low power consumption, and have gradually received widespread attention. Specifically, the OLED display panel includes a plurality of pixel units, and each of the pixel units is provided with a power signal (VDD signal) through a power wiring (VDD wiring). The power signal is generally transmitted from one end of the power trace to the other end. Due to the resistance of the power trace, there will be a certain voltage drop (IR drop) on the power trace, so that the power supply at each position of the OLED display panel The size of the signal is different, causing the brightness difference of each pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32
CPCH10K59/1315
Inventor 王幸
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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