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Photoelectric device and its manufacture, substrate cutting method and substrates for photoelectric devices

An electro-optic device and manufacturing method technology, applied to identification devices, manufacturing tools, glass manufacturing equipment, etc., can solve problems such as manual segmentation, defects, and increased costs

Inactive Publication Date: 2005-02-23
SEIKO EPSON CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] However, in the method of grinding the cover glass from the surface opposite to the surface on which the single groove is formed to a depth not reaching the groove, and utilizing the stress acting on the cover glass to divide a plurality of overlapping substrates, even if the The scribing method divides the three large superimposed substrates. In the applicant's experiment, the cover glass in the middle may not be broken at the expected position and become defective, or it may not be completely broken and become defective.
When such poor segmentation occurs, manual segmentation must be performed, thereby increasing costs

Method used

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  • Photoelectric device and its manufacture, substrate cutting method and substrates for photoelectric devices
  • Photoelectric device and its manufacture, substrate cutting method and substrates for photoelectric devices
  • Photoelectric device and its manufacture, substrate cutting method and substrates for photoelectric devices

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Embodiment Construction

[0084] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. figure 1 It is a plan view of a liquid crystal display device according to an embodiment of the present invention. This embodiment is applied to a TFT liquid crystal display device as one of electro-optic devices, figure 1 This is a view of an element substrate such as a TFT substrate and components formed thereon viewed from the counter substrate side. figure 2 is in figure 1 The position of the H-H' line in the figure is a cross-sectional view of the liquid crystal display device after the assembly process is cut.

[0085] Such as figure 1 and figure 2 As shown, a liquid crystal display device such as a liquid crystal panel is configured by sealing a liquid crystal 50 between an element 10 such as a TFT substrate and a counter substrate 20 . In '10, (ITO)9a etc. are arranged in matrix. In addition, an upper cover glass 71 is attached to the counter s...

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Abstract

The invention realizes a method for manufacturing an electrooptical device that securely parting a plurality of substrates used for the electrooptical device along parting lines. The method for manufacturing the electrooptical device is a method for parting at least two stuck substrates used for the electrooptical device along the parting lines. The method includes a sticking process of sticking a 1st substrate and a 2nd substrate which has a plurality of grooves or one wide groove formed on one surface within a specified width along a parting line on the surface of the 2nd substrate where the plurality of grooves or one groove is formed and a parting process of parting the 1st and 2nd stuck substrates by making a crack along the parting line on the opposite surface from the surface of the 1st substrate which is stuck on the 2nd substrate.

Description

technical field [0001] The present invention relates to a method for manufacturing an electro-optical device, a method for dividing a plurality of substrates, a substrate for an electro-optical device, and an electro-optical device, and particularly to a method for manufacturing an electro-optical device for manufacturing an electro-optical device by dividing a plurality of substrates pasted together along a dividing line, and an electro-optical device with substrates and electro-optical devices. Background technique [0002] Conventionally, electro-optical devices including liquid crystal display devices have been used not only in display monitor devices but also in projection projector devices and the like. In particular, among projection projectors, liquid crystal display devices of a TFT (Thin Film Transistor) driving method are often used in order to meet the demand for high-definition and large-screen display. [0003] A liquid crystal display device of a TFT driving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13B29D11/00C03B33/07G02F1/1333G09F9/00
CPCY10T83/0341Y10T156/1082G02F1/133351Y10T83/936Y10T156/1064Y10T225/12Y10T83/0304B29D11/0074Y10T225/325Y10T156/1089Y10T29/49002G02F1/1333
Inventor 关口祐史
Owner SEIKO EPSON CORP
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