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Flexible oled display panel and display device

A display panel, flexible technology, applied in semiconductor devices, electrical components, photovoltaic power generation and other directions, can solve the problems of thin film and metal wiring, metal wiring falling off, affecting product quality, etc., to avoid metal wiring falling off, improve The effect of product quality

Active Publication Date: 2020-10-13
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since there is a wiring area and a display area on one side of the PI substrate, a large stress will be generated at the bend, resulting in peeling (shedding) of the film and the metal wiring, which will affect the display function.
[0006] To sum up, in the flexible OLED display panel of the prior art, in order to hide the wiring area of ​​the PI substrate substrate, the wiring area needs to be bent to the back of the PI substrate substrate. The wires fall off, which will affect the quality of the product

Method used

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  • Flexible oled display panel and display device
  • Flexible oled display panel and display device
  • Flexible oled display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the flexible OLED display panel provided by the present invention is in a flat state; the flexible OLED display panel includes a flexible substrate 101, a display area 102 is defined on the surface of the flexible substrate 101, and a wiring at one end of the display area 102 Area 103 : the routing area 103 can be bent to one side of the flexible substrate 101 , so as to hide the routing area 103 to the back of the flexible substrate 101 .

[0043] The display area 102 is prepared with a TFT device layer 104, the TFT device layer 104 includes TFT devices distributed in an array, a planarization layer is prepared on the surface of the TFT device layer 104, and pixels distributed in an array are arranged on the surface of the planarization layer Defining banks; a light-emitting device layer is prepared on the surface of the planarization layer, and the light-emitting device layer includes OLED devices distributed in an array, and the OLED device...

Embodiment 2

[0052] Such as image 3 , Figure 4 as shown in image 3 The shown wiring area 303 of the flexible OLED display panel provided by the present invention is in a flat state, Figure 4 The wiring area 303 of the flexible OLED display panel provided by the present invention is shown in a bent state; the flexible OLED display panel includes a flexible substrate 301, and a display area 302 is defined on the surface of the flexible substrate 301, and a display area 302 is located on the display area. The wiring area 303 at one end of 302; the display area 302 is prepared with a TFT device layer 304, and the metal wiring 305 is prepared in the wiring area 303; the wiring area 303 is bent to the flexible substrate 301 in the back.

[0053] The back of the flexible base 301 is provided with a back plate 306, the back plate 306 is used to carry the flexible base 301, and the end of the back plate 306 close to the wiring area 303 of the flexible base 301 is set as an arc-shaped end, W...

Embodiment 3

[0058] Such as Figure 5 , Image 6 as shown, Figure 5 The shown wiring area of ​​the flexible OLED display panel provided by the present invention is in a flat state, Image 6 The wiring area of ​​the flexible OLED display panel provided by the present invention is shown in a bent state; the flexible OLED display panel includes a flexible substrate 401, and a display area 402 is defined on the surface of the flexible substrate 401, and a display area 402 is located on the display area 402. The wiring area 403 at one end; the display area 402 is prepared with a TFT device layer 404, and the metal wiring 405 is prepared in the wiring area 403; the wiring area 403 is bent to the flexible substrate 401 back.

[0059] The back surface of the flexible substrate 401 corresponding to the wiring area 403 is provided with strip-shaped grooves 409 distributed at intervals.

[0060] The back of the flexible base 401 is provided with a back plate 406, the back plate 406 is used to ca...

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PUM

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Abstract

The present invention provides a flexible OLED display panel, comprising: a flexible base, a display area is defined on the surface of the flexible base, and a wiring area located at one end of the display area; the wiring area can be bent to the flexible base One side of the TFT device layer, prepared in the display area of ​​the flexible substrate; a light emitting device layer, prepared on the surface of the TFT device layer; and metal wiring, prepared in the wiring area of ​​the flexible substrate; Wherein, the wiring area is set as a structure that can reduce the bending stress on the surface of the wiring area; the beneficial effect is: the OLED display panel provided by the present invention is set as a structure that can reduce the bending stress in the bending area of ​​the flexible substrate , so as to prevent metal traces from falling off during the bending process of the flexible substrate, thereby improving product quality.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible OLED display panel and a display device with the flexible OLED display panel. Background technique [0002] Compared with TFT-LCD (thin film transistor-liquid crystal display, thin film transistor liquid crystal display panel), AMOLED (Active-matrix organic light emitting diode, active matrix organic light-emitting diode) has light and thin, low power consumption, high contrast ratio, High color gamut, flexible display and other advantages have become the development trend of the next display technology. [0003] The flexible display device includes a PI (Polyimide, polyimide) substrate, and the material of the PI substrate is usually plastic and has certain flexibility. The PI substrate substrate is provided with a display area and a peripheral wiring area (Border), and the width of the Border is generally 3 to 5 mm, resulting in a wider frame of the manufactured di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/00
CPCH10K59/131H10K77/111Y02E10/549
Inventor 徐向阳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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