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Flexible display module and electronic equipment

A flexible display and module technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as failure and fracture

Pending Publication Date: 2021-03-30
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strain accumulation in the crimping process is mainly absorbed by the adhesive material. If the strain accumulation reaches the limit value, peeling (peeling) will occur, and the key layers of the module (such as: inorganic packaging layer, backplane, etc.) are prone to fracture and failure. Happening

Method used

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  • Flexible display module and electronic equipment
  • Flexible display module and electronic equipment
  • Flexible display module and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Such as figure 1 As shown, the flexible display panel 10 can include an inorganic buffer film layer, a back plate, and a package layer (not shown) sequentially stacked, and it should be understood that this backing plate can include a drive circuit layer and an organic light-emitting device. Among them, the driving circuit layer can include an inorganic insulating laminate, a transistor, a storage capacitor, a signal line, and the like, and the organic light emitting device can include an anode, an organic light-emitting material, a cathode, and the like, and the backplane may also include a organic material. The flat layer, the pixel definition layer, the isolation or the like. The package layer can be a single layer structure made of inorganic material, or a composite layer, that is, the package layer can include a first inorganic encapsulation layer, an organic package layer, and a second inorganic encapsulation layer that sequentially stacked, this first inorganic pack...

Embodiment 2

[0070] The main difference from the first example one is:

[0071] The overall design of the first functional film layer and the second functional film layer is different from the design, and the remaining designs (eg, the structure of the flexible display panel 10) may be identical, but not limited thereto, or different, As the case may be.

[0072] In the embodiment of the present disclosure, the thickness of the second functional film layer and the thickness of the first functional film layer are 0.5 to 1.5, and the elastic modulus of the second functional film layer and the elastic modulus of the first functional film layer. The ratio is 0.5 to 1.5, that is, the thickness of one of the first functional film layer and the second functional film layer cannot be less than half of the thickness of the other, and the elastic modulus cannot be less than another. Half of the elastic modulus, such as ensuring that the thickness and elastic modulus of the film layer structure on both s...

Embodiment 3

[0088] The main difference from the second embodiment is:

[0089] On the basis of the second embodiment, if image 3 As shown, the first functional film layer includes the flexible cover 11 and the first adhesive layer 12 mentioned in the second embodiment, which may also include a shock absorbing layer 17 and a third adhesive layer 18, which impact absorbing layer 17 The third adhesive layer 18 is bonded to the side of the flexible display panel 10 by the third adhesive layer 18; wherein the elastic modulus of the impact absorbing layer 17 can be less than the elastic modulus of the flexible cover 11, which is designed to ensure curl performance. Based on, it is possible to improve the impact performance of the flexible display module display side to ensure that the functionality of the flexible display module is not damaged, ie, improve the flexible display module, so that the flexible display module can be enhanced. Mechanical properties and display effects, broaden the scope ...

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Abstract

The invention relates to the technical field of display, in particular to a flexible display module and electronic equipment. The flexible display module can be curled, and can comprise: a flexible display panel having a display side and a back side which are oppositely arranged in the thickness direction of the flexible display panel; a first functional film layer which is formed on the display side of the flexible display panel; and a second functional film layer which is formed on the back side of the flexible display panel, wherein the ratio of the thickness of the second functional film layer to the thickness of the first functional film layer is 0.5 to 1.5, and the ratio of the elastic modulus of the second functional film layer to the elastic modulus of the first functional film layer is 0.5 to 1.5. According to the scheme, the flexible display module is not prone to stripping, losing efficacy and the like.

Description

Technical field [0001] The present disclosure relates to the field of display, in particular, relates to a flexible display module and an electronic device. Background technique [0002] With the development of OLED (Organic Light Emission Diode, organic light-emitting diode), the product and research of flexible display panels related to surfaces, foldable, and other flexible display panels have received more and more widespread attention. [0003] At present, the flexible display module has a plurality of membrane layers, and between the plurality of membrane layers are bonded through the adhesive, however, the miscarriage occurs between the respective film layers during the curl process, that is, the strain accumulation phenomenon. Among them, the thicker the curl module, the more the number of curls, the more severe the accumulation of the membrane layer. The strain accumulation of the curled process is mainly absorbed by the glue material. If the strain accumulates to achiev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/00H01L27/32G09F9/33G09F9/30H10K99/00
CPCG09F9/301G09F9/33H10K59/10H10K77/111H10K50/844Y02E10/549H10K2102/311H10K50/86B32B27/281B32B7/12B32B15/18B32B2307/42B32B2457/20B32B27/40B32B7/022B32B7/02B32B5/18B32B2307/56B32B2307/546B32B2307/54B32B27/065B32B15/046B32B2307/7376B32B27/08H10K50/841H10K50/84B32B3/14B32B2250/05B32B2307/732
Inventor 张家豪朱红罗晓飞杨喆祝尚杰
Owner BOE TECH GRP CO LTD