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Display panel and manufacturing method thereof
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A technology for the preparation of display panels and substrates, used in semiconductor devices, electrical components, circuits, etc., can solve problems such as breakage of signal lines, separation of double-layer alignment films, etc., to improve the screen ratio, avoid separation from each other, and improve stability. Effect
Active Publication Date: 2021-06-22
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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[0004] The purpose of the present invention is to solve technical problems such as separation of double-layer alignment films and breakage of signal lines that are easily caused when the wiring layer of the display panel is bent in the prior art.
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Embodiment 1
[0039] Such as image 3 , Figure 4 As shown, this embodiment provides a display panel, including: a hard substrate 1 , a first area 2 , a second area 3 , a third area 4 and a driving circuit unit 5 .
[0040] The thickness of the hard substrate 1 is 2000-3000 μm. The hard substrate 1 is a glass substrate. The hard substrate 1 is in contact with the first area 2 and the second area 3 and is located between the first area 2 and the second area 3 .
[0041] The first area 2 is disposed on the top surface of the hard substrate 1 , and the first area 2 includes: a protection layer 21 , a first substrate 22 , a buffer layer 23 , a second substrate 24 and a first data line 25 .
[0042] The protective layer 21 is arranged on the top surface of the hard substrate 1, and the protective layer 21 is a back plate (Back Plate, referred to as BP), and the BP is specifically composed of a release film (Release Film), an adhesive (Adhesive), PET and a substrate layer ( Primary liner), the ...
Embodiment 2
[0070] Such as Figure 8 As shown, most of the technical solutions of this embodiment are the same as those of Embodiment 1, the difference is that, in the manufacturing method of the display panel provided by this embodiment, no cutting process is required, and the specific steps include S100-S400.
[0071] S100 The hard substrate setting step, providing a hard substrate, a first area, a second area and a third area. The hard substrate setting step includes steps S110-S140 (see Figure 9 ).
[0072] S110 a first substrate preparation step, providing a protective layer, and preparing a first substrate on the upper surface of the protective layer. The protective layer is a back plate (Back Plate, BP for short), and BP is specifically composed of a release film (Release Film), an adhesive (Adhesive), PET and a substrate layer (Primary liner). The release film and primary liner are BP The upper and lower protective films will be torn off during the manufacturing process. The ...
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Abstract
The present invention provides a method for preparing a display panel and its wiring layer. The display panel includes: a wiring structure; the wiring structure includes: a hard substrate, a first area, a third area, a second area and circuit. Wherein, one end of the third area is connected to the first area, and the other end is connected to the second area. The preparation method of the wiring layer of the display panel includes: a wiring layer setting step, a wiring layer bonding step, a wiring layer bonding step, and a driving circuit unit bonding step. The technical effect of the present invention is to improve the technical problems of the separation of the double-layer alignment films and the breakage of the signal line in the bending area, and improve the yield rate of the display panel.
Description
technical field [0001] The invention relates to the field of display panels, in particular to a display panel and a preparation method thereof. Background technique [0002] OLED has the advantages of wide color gamut, high contrast, energy saving, and foldability. It has strong competitiveness in the display of the new era. Foldability is one of the key development directions of flexible displays. How to improve the foldability of flexible OLED displays has become an urgent problem to be solved. [0003] Such as figure 1 As shown, it is a schematic diagram of an existing AMOLEDmobile phone display panel, including a display area 100 and a non-display area, and a bending area 210 is provided on the lower frame of the panel to realize flexible bending and narrow frame. The bending area 210 has a structure such as figure 2 As shown, there is a substrate 210, a protective layer 220, and a double-layer alignment film 230 (double PI) below the bending area, and there is a UV...
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
CPCH10K59/131H10K59/1201
Inventor 王朝欢
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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