公开(公告)号：JPH10104606A

公开(公告)日：1998-04-24

申请号：JP25593896

申请日：1996-09-27

Applicant: TORAY INDUSTRIES

Inventor： TSUDA TAKAHARU ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/20 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/136 ,  G02F1/1368

Abstract: PROBLEM TO BE SOLVED: To obtain a color liquid crystal display device which is easily manufactured and has high contrast, a wide visual field angle, and superior display quality by providing spacers, formed by putting colored layers of the three primary colors one over another, on the black matrix of a color filter substrate. SOLUTION: On the transparent substrate 1, the black matrix is provided by patterning a light-shield material. Then pixels are formed of the colored layers 3 to 5 provided in desired patterns by an arbitrary number of colors, and on the black matrix, spacers are provided by putting the colored layers 3 to 5 one over another. Further, an overcoat film is formed on the colored layers 3 to 5 when necessary. Consequently, even when color overlap spacers provided on the side of a color filter substrate come into contact with an opposite substrate, a common electrode 12 never short-circuits with wiring and pixel electrodes 11 on the opposite substrate side. Therefore, restrictions on the size of the spacers are relaxed, and the formation becomes easy in terms of the number of processes and machining precision.

公开(公告)号：JPH10104591A

公开(公告)日：1998-04-24

申请号：JP26305696

申请日：1996-10-03

Applicant: TORAY INDUSTRIES

Inventor： KAJITA JUNJI ,  NOMURA HIDESHI ,  TSUDA TAKAHARU ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/20 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1339

Abstract: PROBLEM TO BE SOLVED: To obtain a display device which has an excellent display grade, substantially prevents the occurrence of problems, such as crosstalks, and has excellent reliability by using a substrate having spacers which are recessed in the sectional shapes of the uppermost layer and are fixed in non-display regions. SOLUTION: The substrate for the liquid crystal display device having the spacers 16 to 18 which are recessed in the sectional shapes of the uppermost layer in the non-display regions and are fixed is used. The spacers 16 to 18 come into contact with a counter substrate when the liquid crystal display device is manufactured. As a result, the specified gas is held with the counter substrate and liquid crystals are injected into this gap. The height (the height up to the vertex of the recessed shapes when the flat parts near the center of the spacers is determined as a reference) of the recessed shapes is 0.05 to 2μm. If the height is too low, the effect for preventing the display defect, etc., by the nonuniformity of the cell gap is not exhibited. If, conversely, the height is too large, there is a possibility that chipping is induced in the spacers by the load at the time of a rubbing treatment or at the time of assembling the panel.

公开(公告)号：JPH10104418A

公开(公告)日：1998-04-24

申请号：JP26305796

申请日：1996-10-03

Applicant: TORAY INDUSTRIES

Inventor： KAJITA JUNJI ,  NOMURA HIDESHI ,  TSUDA TAKAHARU ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/20 ,  B82B1/00 ,  G02F1/1333

Abstract: PROBLEM TO BE SOLVED: To reduce a defect in orientation and a defect in display, and to make display quality excellent by providing a spacer which is fixed in a non- display area, and making the spacer higher at its center part than at its peripheral edge part. SOLUTION: The substrate for the liquid crystal display device has the fixed spacer, which is higher at the top-layer center part than at the top-layer peripheral edge part, in the non-display area. The top-layer center part of the spacer is normally 0.05 to 2μm, preferably, 0.1 to 1μm higher than the top-layer peripheral edge part. The spacer which is higher at the top-layer center part than at the top-layer peripheral edge part comes into surface contact with the substrate that the spacer faces when the substrate is pressed, so wires and an orientation film on the opposite surface are hardly flawed and the display quality seldom decreases owing to a display defect or orientation defect. Further, this spacer makes it smooth to inject liquid into between the spacer and opposite substrate, so that an air bubble is hardly formed.

公开(公告)号：JPH1048641A

公开(公告)日：1998-02-20

申请号：JP22173096

申请日：1996-08-05

Applicant: TORAY INDUSTRIES

Inventor： KAJITA JUNJI ,  NOMURA HIDESHI ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a substrate for a liquid crystal display element which embodies a sufficient cell gap, holds a uniform cell gap within a screen and overcomes the problem of the degradation of a display grade occurring in the fluctuation in a cell gap and the generation of foam at the time of a low temp. and a color liquid crystal display element including the same. SOLUTION: This substrate for the liquid crystal display element has spacers fixed to the non-display region on the substrate for the liquid crystal display element and the compressive displacement to load with respect to a compressive stress of 0.5 to 0.6Gpa is 0.001 to 1μm/mN. This color liquid crystal display element is formed by holding a liquid crystal layer by two sheets of the substrates for the liquid crystal display element. At least one substrate for the liquid crystal display element is the substrate for the liquid crystal display element described above.

公开(公告)号：JPH09292514A

公开(公告)日：1997-11-11

申请号：JP10742496

申请日：1996-04-26

Applicant: TORAY INDUSTRIES

Inventor： TSUDA TAKAHARU ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/00 ,  C09D179/08 ,  G02B5/20 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/136 ,  G02F1/1368

Abstract: PROBLEM TO BE SOLVED: To obtain a color filter in which an electric field can be effectively and stably applied into a liquid crystal by specifying the specific inductive capacity of color films, and to provide a liquid crystal display device having the filter. SOLUTION: This color filter has pixels consisting of color films 3 of desired colors formed into a desired pattern for each color. Color films 3 are formed on a transparent substrate and a light-shielding region 2 is formed between pixels. The color film 3 has a function to transmit light of a desired color and its specific conductive capacity is controlled to

公开(公告)号：JPH09292513A

公开(公告)日：1997-11-11

申请号：JP10742396

申请日：1996-04-26

Applicant: TORAY INDUSTRIES

Inventor： TSUDA TAKAHARU ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/00 ,  C09D179/08 ,  G02B5/20 ,  G02F1/1335 ,  G02F1/136 ,  G02F1/1368

Abstract: PROBLEM TO BE SOLVED: To obtain a color filter in which an electric field can be effectively and stably applied into a liquid crystal by specifying the specific inductive capacity of an overcoat film, and to provide a liquid crystal display device having the color filter. SOLUTION: This color filter has pixels consisting of colored films 3 formed into a desired pattern for each color. the color films 3 are formed on a transparent substrate 1, and further, an overcoat film 4 is formed on the color films 3. A light-shielding region 2 is formed between pixels. The overcoat film 4 is formed to protect the color film 3 and flatten the color filter surface. The specific inductive capacity of the overcoat film is controlled to

公开(公告)号：JPH09281479A

公开(公告)日：1997-10-31

申请号：JP2372697

申请日：1997-02-06

Applicant: TORAY INDUSTRIES

Inventor： TSUDA TAKAHARU ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/20 ,  G02F1/1335 ,  G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To obtain a color filter which does not require a process of forming an orienting film on the color filter and to more effectively apply an electric field on a liquid crystal in a liquid crystal display device which is driven by a transverse electric field, by directly forming a color film on a transparent substrate and then forming an overcoat film which can be treated for orientation on the color film. SOLUTION: This color filter has pixels comprising color layers 3 formed into a desired pattern for each color of desired colors and has such a layer structure that the color layers 3 are formed on a transparent substrate 1 and an overcoat film 4 is formed on the color layers 3. The overcoat film 4 is formed to protect the color films 3 and to flatten the surface of the color filter. By subjecting the film 4 to orientation treatment such as rubbing, the film 4 has a function to orient liquid crystal molecules which are brought into contact with the film 4. As for orientation treatment, rubbing method is preferably used, because rubbing can be done in a rather simple device and industrially high productivity and high orientation performance can be obtd.

公开(公告)号：JPH09274105A

公开(公告)日：1997-10-21

申请号：JP2372597

申请日：1997-02-06

Applicant: TORAY INDUSTRIES

Inventor： TSUDA TAKAHARU ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/20 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To eliminate the need for forming oriented films on colored films which allow orientation treatments by directly forming colored films on the transparent substrate. SOLUTION: The colored films 3 which allow the orientation treatments are directly formed on the transparent substrate 1 of the color filters obtd. by forming the colored films 3 on the transparent substrate 1. The color filters have pixels consisting of the colored layers formed to desired pattern forms by colors in the arbitrary number of colors and are so formed that the colored layers come into direct contact with a liquid crystal layer at the time of constituting the liquid crystal display device by forming the colored layers on the transparent substrate 1. The color filters are used for the color liquid crystal display device driven by an electrode field (transverse electric field) of the direction parallel with the transparent substrate 1. Any films are usable for the colored films 3 of this case, insofar as the films have the performance to allow the transmission of light of arbitrary colors and are capable of orienting the liquid crystal molecules in contact with the colored films 3 by an orientation treatment method, such as rubbing.

公开(公告)号：JPH09113721A

公开(公告)日：1997-05-02

申请号：JP21269996

申请日：1996-08-12

Applicant: TORAY INDUSTRIES

Inventor： KUBOTA YASUO ,  NONAKA HARUKI ,  YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/20 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To display an image of excellent quality when a filter is assembled in a liquid crystal display element by forming a black matrix in such a manner that the pattern width at the upper face position of the black matrix, the pattern width at the lower face position, and the film thickness satisfy a specified relation. SOLUTION: This color filter consists of a light-transmitting substrate 2, a black matrix 1 prepared by dispersing a light-shielding agent in a polyimide resin containing polyamide imide and formed on the substrate 2, and picture elements further formed on the black matrix 1. The pattern width L1 of the black matrix 1 at the upper face position, the pattern width L2 at the lower face position, and the film thickness t satisfy the relation of (L2 -L1 )/2>=t. By this method, steps on the color filter surface can be decreased to such a degree that image defects are not caused. In order to obtain a color filter which does not cause display defects regardless to whether a protective film is formed on the pixel pattern or not, it is preferable that the height of steps ΔT on the display satisfies ΔT

公开(公告)号：JPH0949917A

公开(公告)日：1997-02-18

申请号：JP20103995

申请日：1995-08-07

Applicant: TORAY INDUSTRIES

Inventor： YAMADA SHINICHI ,  GOTO TETSUYA

IPC: G02B5/20 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To obtain a color filter with which a liquid crystal display device having excellent display quality and reliability can be easily produced by forming a spacer of laminated color layers on a resin black matrix in such a manner that the density of the spacer is controlled to a specified number or smaller per one pixel in the display area. SOLUTION: In this color filter, color layers 3-5 of three primary colors are laminated to form a spacer on a black matrix 2. The spacer is formed by