Manufacturing method and motherboard of liquid crystal display device
A technology of a liquid crystal display device and a manufacturing method, which is applied in nonlinear optics, instruments, optics, etc., and can solve problems such as difficult handling of glass substrates and increased material costs
Inactive Publication Date: 2016-10-05
JAPAN DISPLAY INC
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Problems solved by technology
However, glass substrates used in liquid crystal cells are standardized at 0.5 mm or 0.4 mm, and using glass substrates with thicknesses other than the standardized ones will lead to a significant increase in material costs
In addition, if a glass substrate thinner than a standardized glass substrate is used, problems such as the mechanical strength of the glass substrate will arise, and it will be difficult to handle the glass substrate during production.
Method used
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Embodiment 1
[0044] figure 1 It is a plan view of the motherboard 80 of the present invention. The motherboard 80 is formed by bonding the TFT motherboard 60 and the opposing motherboard 70 together. exist figure 1 Among them, 7 horizontally and 5 vertically, a total of 35 liquid crystal cells 1 are formed on the motherboard 80 . A sealing material 20 is formed on each liquid crystal cell 1 , and a part of the sealing material 20 becomes an injection hole 40 for injecting liquid crystal.
[0045] That is, after the master 80 is completed and separated into individual liquid crystal cells 1 , liquid crystal is injected into each liquid crystal cell 1 through the injection hole 40 , and then sealed with the sealing material 30 . Thus, in figure 1 In the state, the inside of each liquid crystal cell 1 is in an open state through the injection hole 40. If the polishing fluid etc. invades the inside of the motherboard 80, it will enter the inside of each liquid crystal cell 1, resulting ...
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Abstract
The invention provides a manufacture method of an LCD device and a motherboard, and can prevent grinding liquid from damaging an LCD unit when thinning the motherboard through grinding. An opposed motherboard (70) and a TFT motherboard (60) are closed by using a motherboard sealing material (61) comprising first glass fiber, a temporary fixing material (64) comprising second glass fiber, and the gap between filling the motherboard sealing material (61), and a motherboard sealing material (63) of the gap between the motherboard sealing material (61) and the temporary fixing material (64). The diameter of the second glass fiber is larger than the diameter of the first glass fiber. Through such structure, the motherboard sealing material (63) can be coated evenly between the opposed motherboard (70) and the TFT motherboard (60).
Description
technical field [0001] The present invention relates to a liquid crystal display device, and particularly relates to a structure for increasing the yield when a plurality of liquid crystal cells (cells) are taken out from a motherboard by thinning a substrate by grinding. Background technique [0002] In a liquid crystal display device, a TFT substrate in which pixel electrodes and thin film transistors (TFTs) are formed in a matrix, and an opposing TFT substrate in which color filters and the like are formed at positions corresponding to the pixel electrodes of the TFT substrate are provided. As for the substrate, liquid crystal is sandwiched between the TFT substrate and the counter substrate. And, an image is formed by controlling the transmittance of light determined by liquid crystal molecules for each pixel. [0003] In liquid crystal display devices, it is strongly required to reduce the external dimensions of the set while maintaining a constant screen specification...
Claims
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IPC IPC(8): G02F1/1333G02F1/1339
Inventor 小泽政史
Owner JAPAN DISPLAY INC