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Method for making LCOS (Liquid Crystal On Silicon) liquid crystal display

A production method and technology of liquid crystal screen, applied in nonlinear optics, instruments, optics, etc.

Active Publication Date: 2011-04-06
吉林省钜鸿智能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The invention discloses a method for solving the deformation of the screen caused by the heterogeneous structure of LCOS when the sealant is cured due to the heterogeneous structure of LCOS by using a light-curable adhesive as the main heat-curable adhesive and a mixed adhesive supplemented by a heat-curable adhesive instead of a conventional heat-curable adhesive.

Method used

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  • Method for making LCOS (Liquid Crystal On Silicon) liquid crystal display
  • Method for making LCOS (Liquid Crystal On Silicon) liquid crystal display
  • Method for making LCOS (Liquid Crystal On Silicon) liquid crystal display

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Embodiment 1

[0036] Micro vision glasses are made with LCOS LCD screen. The size of the LCOS LCD screen is 0.7 inches, and the display resolution is 600×800. Made of 0.5mm thick ITO glass and 0.7mm thick silicon wafer. The entire production process of LCOS must be carried out under ultra-high purification conditions (the cleanliness of the clean room is ≤1000, and the interior of the equipment is ≤100).

[0037] 1) A groove is provided on the supporting glass 9, and the silicon wafer 1 is placed in the groove. The four corners of the supporting glass 9 and the edges of the groove are provided with alignment marks 8, and the silicon wafer 1 is also provided with There is an alignment mark 10 corresponding to the groove alignment mark of the supporting glass 9;

[0038] The alignment between the silicon wafer 1 and the supporting glass 9 is carried out under a microscope with a power of 500 times, and the alignment accuracy is controlled within ±2 microns;

[0039] 2) Silicon wafer 1 and ...

Embodiment 2

[0053] The LCOS display screen used to make a micro projector has a size of 0.9 inches and a display resolution of 680×1024, and the thickness of ITO glass is 0.7mm.

[0054] 1) A groove is provided on the supporting glass 9, and the silicon wafer 1 is placed in the groove. The four corners of the supporting glass 9 and the edges of the groove are provided with alignment marks 8, and the silicon wafer 1 is also provided with There is an alignment mark 10 corresponding to the groove alignment mark of the supporting glass 9;

[0055] 2) Cleaning and drying the ITO glass 2 and the silicon wafer 1 respectively, and coating the surface with photosensitive adhesive, exposing, developing, and drying;

[0056] 3) Corroding the ITO layer 5 on the ITO glass 2 with an etching solution of hydrochloric acid: nitric acid: water=100:8:123 (volume ratio);

[0057] 4) Remove the photosensitive adhesive on the ITO glass 2 with a film release solution, wash and dry;

[0058] 5) coating the PI ...

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Abstract

The invention discloses a method for making an LCOS (Liquid Crystal On Silicon) liquid crystal display, and the LCOS liquid crystal display is produced by using a conventional production line of liquid crystal displays. In the invention, a gasket material is not distributed in a display space of the LCOS display, and gasket material inexistence in the display space and the control of box thickness are realized by mixing a proper amount of gasket materials with certain grain diameter in sealed frame glue. The problem of the difficult control of the uniformity of box thickness due to the design of ultrathin box thickness for increasing the response speed of the liquid crystal display and the problem caused by a hetero structure are solved by the following methods of: carrying out low-temperature treatment on the liquid crystal display after liquid crystals are injected and then sealing; eliminating the stress of the display by carrying out high-temperature treatment at 110 centigrade degrees before display cutting.

Description

technical field [0001] The invention discloses a method for manufacturing an LCOS liquid crystal screen, which uses a conventional liquid crystal production line and adopts some technical measures and a new process method in view of some characteristics of LCOS to produce this conventional liquid crystal screen in terms of structure, performance and processing technology. LCOS screen products with great differences belong to the field of liquid crystal display manufacturing technology. Background technique [0002] LCOS liquid crystal display (ie Liquid Crystal on Silicon) is a new product launched in the market in recent years, it is used in projection equipment, glasses-type micro-vision display, especially in portable micro-projectors has been widely used. However, because its structure and performance are quite different from conventional LCD screens, the manufacturing process of LCOS screens is also quite different from conventional LCD screens, making it much more diff...

Claims

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Application Information

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IPC IPC(8): G02F1/1339G02F1/1341G02F1/1333G02F1/136
Inventor 马仁祥叶红卫仲凯姚振罡丁科学
Owner 吉林省钜鸿智能技术有限公司
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