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oled display device

A technology for display devices and connection points, applied to static indicators, instruments, semiconductor devices, etc., can solve the problems of increasing the size of the detection chip 200', reducing the equivalent resistance, etc., achieving the effect of small size and reducing voltage changes

Active Publication Date: 2019-10-18
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the display quality of the picture and eliminate the voltage variation that exists when the reference voltage Vref is input to different sensing lines 300' due to the IR drop effect of the internal wiring 210', the prior art generally increases the area of ​​the internal wiring 210' , so that the equivalent resistance of the internal wiring 210' is reduced, but this method will greatly increase the size of the detection chip 200'

Method used

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Embodiment Construction

[0028] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0029] see figure 2 , the present invention provides an OLED display device, comprising: a detection chip 100, two external input wires 200 electrically connected to the detection chip 100, a plurality of sensing lines 300 electrically connected to the detection chip 100, and an OLED panel 400 electrically connected to a plurality of sensing lines 300;

[0030] The detection chip 100 includes a first internal wiring 110 and a second internal wiring 120 spaced apart from each other, and a plurality of switches S corresponding to a plurality of sensing lines 300 one-to-one;

[0031] The first internal wiring 110 is provided with a plurality of spaced apart first connection points 111 and a third connection point 112 between two ends of the fir...

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Abstract

The invention provides an OLED display device. The detection chip of the OLED display device is provided with a first internal wiring and a second internal wiring spaced apart from each other, and a plurality of first connection points are arranged on the first internal wiring, and are located between two ends of the first internal wiring. There are a plurality of second connection points on the second internal wiring, and a fourth connection point located between the two ends of the second internal wiring. The reference voltage passes through the third connection point and the fourth connection point. Points are input to the first internal wiring and the second internal wiring, and then input to multiple sensing lines through the first and second connection points respectively, and then input to the OLED panel, which can effectively reduce the reference voltage through the detection chip input sense The voltage change when measuring the line, and make the detection chip have a smaller size.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display device. Background technique [0002] Organic light emitting diode (Organic Light Emitting Display, OLED) display device has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, and can realize flexible display and With many advantages such as large-area full-color display, it is recognized by the industry as a display device with the most potential for development. [0003] OLED display devices generally include: a substrate, an anode disposed on the substrate, a hole injection layer disposed on the anode, a hole transport layer disposed on the hole injection layer, a light emitting layer disposed on the hole transport layer, a device An electron transport layer on the light emitting layer, an electron injection layer on the electron tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225G09G3/00
CPCG09G3/006G09G3/3225G09G2320/0295G09G2320/043G09G2320/0223H10K59/131G09G2330/12
Inventor 王振岭
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD