Protective film module and preparation method thereof, display assembly and display device
A technology for display components and protective films, applied in identification devices, chemical instruments and methods, electrical components, etc., can solve the problems that PET cannot meet the requirements, achieve melting damage avoidance, high stability and reliability, and improve tensile properties Effect
Pending Publication Date: 2020-08-18
BOE TECH GRP CO LTD
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Problems solved by technology
[0003] At present, the protective film on the back of the ordinary flat display panel is mostly made of PET material, which has good support, high transmittance, few black spots and relatively low cost. The back protective film puts forward higher requirements, such as low deformation, high recovery, etc., especially for stretchable display devices, PET can no longer meet the requirements
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[0039] The inventors have found that for stretchable display devices, the protective film on the back of the device is required to have a certain stretchability to match the stretchability of the display substrate, but the PET material has a high modulus and a relatively low elongation at break. The stretchability of stretchable devices cannot be satisfied. Although other polymer materials such as TPU and silica gel have good tensile properties, they have low melting points and are easily melted during some high-temperature manufacturing processes of display devices (such as during the bonding process), which cannot meet the existing manufacturing processes.
[0040] In view of this, the embodiments of the present application provide a protective film module and its preparation method, a display component, and a display device, which are used to realize a solution for protecting the back of a stretchable display device.
[0041] The following will clearly and completely descri...
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Abstract
The invention relates to the technical field of display, and discloses a protective film module and a preparation method thereof, a display assembly and a display device. The protective film module isconfigured to be arranged on the back face of the stretchable flexible display substrate, and the protective film module comprises: a stretchable film, wherein the stretchable film comprises a firstpart, and the first part is configured to cover the binding area of the display substrate; and a heat insulation film which is located on the side, facing the display substrate, of the stretchable film and at least covers the first part of the stretchable film. The protective film module provided by the embodiment of the invention is used for being attached to the back surface of the stretchable display substrate, can be stretched along with the display substrate, can protect the back surface of a stretchable display device, cannot be melted and damaged in high-temperature binding of the display substrate, and has relatively high stability and reliability.
Description
technical field [0001] The present application relates to the field of display technology, in particular to a protective film module and a preparation method thereof, a display component, and a display device. Background technique [0002] Organic Light Emitting Display (OLED), as a new type of display device, has been continuously developed and applied in the field of display technology. Based on the flexible characteristics of OLED, full screen, folding, curling, and stretchable displays have become new development trends. aroused great concern. In particular, the stretchable display panel with openings in the substrate provides the possibility for many new types of displays, such as spherical displays, four-sided curved displays, and the like. [0003] At present, the protective film on the back of the ordinary flat display panel is mostly made of PET material, which has good support, high transmittance, few black spots and relatively low cost. The back protective film ...
Claims
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IPC IPC(8): H01L27/32G09F9/30B32B27/40B32B27/12B32B25/20B32B25/10B32B5/02B32B15/06B32B15/095
CPCG09F9/301B32B27/40B32B27/12B32B25/20B32B25/10B32B5/02B32B15/06B32B15/095B32B2307/304H10K59/10
Inventor 韩子昂谢春燕谷朋浩张家豪
Owner BOE TECH GRP CO LTD