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A kind of flexible display panel and flexible display device

A flexible display and panel technology, applied in semiconductor devices, electrical components, photovoltaic power generation, etc., can solve problems such as easy disconnection, and achieve the effect of ensuring bending performance and good flexibility

Active Publication Date: 2019-08-02
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a flexible display panel and a flexible display device, which are used to solve the problem in the prior art that the welding area is prone to disconnection risk during bending

Method used

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  • A kind of flexible display panel and flexible display device
  • A kind of flexible display panel and flexible display device
  • A kind of flexible display panel and flexible display device

Examples

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Embodiment Construction

[0017] The specific implementation manners of the flexible display panel and the flexible display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] The thickness and area shape of each layer of film in the drawings do not reflect the true proportion of the flexible display panel, but are only intended to schematically illustrate the content of the present invention.

[0019] At present, the existing OLED display devices, such as figure 1 As shown, it generally includes: a base substrate 001 having a display area a and a pad area b, a plurality of display elements 002 arranged on the display area a of the base substrate 001, and a flexible printed circuit connected to the pad area b on one side board 003 (FPC), a printed circuit board 004 (PCB) connected to the other side of the flexible printed circuit board 003, and an adhesive disposed on the pad area b and covering one side of ...

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Abstract

The invention discloses a flexible display panel and a flexible display device, comprising: a flexible base substrate having a display area and a pad area, and a plurality of display elements arranged on the display area of ​​the flexible base substrate. By covering the display area and pad area of ​​the entire flexible substrate substrate with the protective film, and directly setting the adhesive layer in the space between the protective film and the display element and the space between the pad area of ​​the flexible substrate substrate and the protective film In such a way that there is only a single adhesive in the soldering area between the flexible substrate substrate and the protective film. When the flexible display panel is bent under force, it can ensure that the strain neutral layer in the welding area of ​​the flexible display panel is located at the adhesive layer, avoiding cracks and disconnection of the signal lines located in the welding area due to excessive stress risk; and by controlling the elastic modulus of the adhesive layer in the range between 0.5MPa-10MPa, the adhesive layer has better flexibility to ensure the bending performance of the flexible display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible display panel and a flexible display device. Background technique [0002] With the advancement of display technology, more and more active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) display devices have entered the market, which are different from traditional transistor liquid crystal display devices (Thin Film Transistor Liquid Crystal Display, TFT LCD) In comparison, it has the advantages of low energy consumption, low production cost, self-illumination, wide viewing angle, and fast response speed. At present, it has gradually replaced traditional LCD displays in the display fields of mobile phones, PDAs, and digital cameras. When the organic light emitting diode display panel is made into a flexible display device, it is easy to cause cracks and disconnection of signal lines in the welding area. Therefore, how to impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/00H10K99/00
CPCH10K59/00H10K77/111Y02E10/549
Inventor 于泉鹏李喜烈蔡雨刘聪慧
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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