Laser etched film structure cholesteric liquid crystal display screen and preparing method thereof
A cholesteric liquid crystal and laser etching technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of uneven surface and low cost, and achieve the effect of high resolution, low cost and saving glue
Pending Publication Date: 2019-04-12
南京华日触控显示科技有限公司
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Problems solved by technology
[0005] The present invention proposes a membrane structure cholesteric liquid crystal display produced by laser etching and a manufacturing method thereof. Bubbles are prone to appear on the timing and cause surface unevenness. A laser-etched film structure cholesteric liquid crystal display suitable for large sizes and its manufacturing method are proposed. The flexible polyester film after laser etching is combined up and down. The formed film structure cholesteric liquid crystal screen has simple process and low cost
Method used
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Embodiment 1
[0032] 1) Convert the design files in the computer-aided design software AUTOCAD into the computer-aided manufacturing software CAM.
[0033] 2) After CAM typesetting and programming, instructions are given to the laser etching instrument, and the required pattern is formed on the ITO layer by laser etching.
[0034] 3) Print HR2C213-510 cholesteric liquid crystal layer on the lower flexible polyester film with the pattern, the thickness is 5um.
[0035] 4) Then the upper flexible polyester film and the lower flexible polyester film printed with the cholesteric liquid crystal layer are attached to the alignment holes according to the four-corner process.
[0036] 5) After pre-alignment and bonding, the upper and lower flexible polyester films are heated to 50 degrees with thermal adhesive 1008DL to seal the edges.
[0037] 6) Then print the absorption and reflection film BM-040 on the lower surface of the lower flexible polyester film.
[0038] 7) Then, at the left edge of the ITO layer ...
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The invention relates to a laser etched film structure cholesteric liquid crystal display screen. The laser etched film structure cholesteric liquid crystal display screen comprises an upper ITO layer, a lower ITO layer, a cholesteric liquid crystal layer, an upper flexible polyester film, a lower flexible polyester film, and an absorption reflection film. The upper ITO layer is arranged on the lower side of the upper flexible polyester film. The lower ITO layer is arranged on the upper side of the lower flexible polyester film. The cholesteric liquid crystal layer is arranged under the upperITO layer in a coating mode. Figures of the ITO layers are formed by laser etching. The flexible polyester films are fixed by edge sealing glue. The absorption reflection film is printed under the lower flexible polyester film. The preparation method comprises the following steps that (1), laser etching is conducted; and (2) the film structure cholesteric liquid crystal display screen is prepared.The laser etched film structure cholesteric liquid crystal display screen and the preparation method thereof have the advantages that (1), a modern computer technology is adopted to etch required figures, the technology is simple, efficiency is high, and the procedures of gluing, baking, exposure, developing and stripping are reduced; (2) the flexible polyester films are prevented from bubbling and unevenness, high-precision ITO electrode films with ultra-fine seam width and high resolution can be prepared; and (3), operation of preparing a large-scale film structure cholesteric liquid crystal display screen is simple, and the cost is low.
Description
Technical field [0001] The invention relates to a cholesteric liquid crystal display screen with a film structure made by laser etching and a manufacturing method thereof, belonging to the technical field of liquid crystal display screens. Background technique [0002] Cholesteric liquid crystal is a cholesteric derivative that exhibits a liquid crystal phase within a certain temperature range. It has a chiral carbon atom and a periodic spiral layered molecular arrangement in the molecule. The layers are parallel to each other, and the molecules have liquid crystals. The commonness of the molecules is rod-shaped. However, its long axis has a preferential orientation along a certain direction on the same layer, and the molecules of two adjacent layers are preferentially oriented with a difference of 15 degrees, and the preferential orientation direction is helically rotated in space along the optical axis. Due to this special structure, the cholesteric liquid crystal has obvious ...
Claims
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IPC IPC(8): G02F1/137G02F1/1335G02F1/1333
CPCG02F1/1333G02F1/133553G02F1/13718
Inventor 权建华周小军周学秀蒋丽
Owner 南京华日触控显示科技有限公司