IP Library Patent Application 12714744
Patent Application
App. No. 12/714,744

LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF

Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US None
App. No.
12/714,744
Abstract

A liquid crystal display device produced by rubbing a resin film formed on an upper surface of a stacked body in each of panel regions of a first substrate in a direction substantially parallel to or in a direction substantially perpendicular to an arrangement direction of the panel regions, and forming, in the case where a side positioned on a rubbing start side, among sides of each of first organic insulating films, is defined as a first side, and each of sides parallel to a rubbing direction, among sides of a second organic insulating films disposed adjacent to the first side, is defined as a second side, a portion of the first side that crosses the second side when the second side is virtually extended in the rubbing direction so as to have a predetermined angle other than 0° and 90° with respect to a direction perpendicular to the rubbing direction, as viewed in a plane.

Claims (44)

1 . A method for manufacturing a liquid crystal display device including a first multi-piece substrate and a second multi-piece substrate facing the first multi-piece substrate and having a plurality of column spacers formed thereon, the method comprising the steps of:

in the first multi-piece substrate, forming a stacked body including a first organic insulating film and a resin film disposed on an upper surface of the stacked body and disposed in a forming region of the first organic insulating film as viewed in a plane in a plurality of rectangular panel substrate regions arranged in the first multi-piece substrate, and forming a plurality of patterned metal films and a plurality of rectangular second organic insulating films disposed so as to avoid forming regions of the metal films and serving as bases of the column spacers in a mixed manner along sides of the panel substrate region in a non-panel region at the periphery of each of the panel substrate regions; and

forming an alignment film by rubbing the resin film formed on the upper surface of the stacked body in each of the panel substrate regions of the first multi-piece substrate in a direction substantially parallel to or in a direction substantially perpendicular to an arrangement direction of the panel substrate regions, wherein

in the case where, as viewed in a plane, a side positioned on a start side of the rubbing, among sides of each of the first organic insulating films, is defined as a first side, and each of sides substantially parallel to the rubbing direction, among sides of the second organic insulating film disposed adjacent to the first side, is defined as a second side, a portion of the first side that crosses the second side when the second side is virtually extended in the rubbing direction is formed so as to have a predetermined angle other than 0° and 90° with respect to a direction perpendicular to the rubbing direction.

2 . The method for manufacturing the liquid crystal display device according to claim 1 , wherein

the first side of the first organic insulating film has a zigzag shape in which peaks and valleys are repeated along a direction crossing the rubbing direction, as viewed in a plane.

3 . The method for manufacturing the liquid crystal display device according to claim 1 , wherein

the metal film is formed as a mark.

4 . The method for manufacturing the liquid crystal display device according to claim 3 , wherein

the mark is formed as an alignment mark.

5 . The method for manufacturing the liquid crystal display device according to claim 1 , wherein

the metal film is formed as a code.

6 . A method for manufacturing a liquid crystal display device including a first multi-piece substrate and a second multi-piece substrate facing the first multi-piece substrate and having a plurality of column spacers formed thereon, the method comprising the steps of:

in the first multi-piece substrate, forming a stacked body including a first organic insulating film in a plurality of rectangular panel substrate regions arranged in the first multi-piece substrate, and forming a plurality of patterned metal films and a plurality of second organic insulating films disposed so as to avoid forming regions of the metal films and serving as bases of the column spacers in a mixed manner along sides of the panel substrate region in a non-panel region at the periphery of each of the panel substrate regions; and

forming an alignment film by rubbing a resin film formed on an upper surface of the stacked body in each of the panel substrate regions of the first multi-piece substrate in a direction substantially parallel to or in a direction substantially perpendicular to an arrangement direction of the panel substrate regions, wherein

as viewed in a plane, each of sides crossing a parallel-arranged direction of the second organic insulating films in the second organic insulating film formed in the non-panel region on one side positioned on a start side of the rubbing, among sides of each of the panel substrate regions, has a predetermined angle other than 0° with respect to the rubbing direction.

7 . The method for manufacturing the liquid crystal display device according to claim 6 , wherein

the second organic insulating film formed in the non-panel region on said one side of the panel substrate region is formed in a trapezoidal pattern with the start side of the rubbing being as an upper side and a side facing the upper side being as a base side, as viewed in a plane.

8 . The method for manufacturing the liquid crystal display device according to claim 6 , wherein

the metal film is formed as a mark.

9 . The method for manufacturing the liquid crystal display device according to claim 8 , wherein

the mark is formed as an alignment mark.

10 . The method for manufacturing the liquid crystal display device according to claim 6 , wherein

the metal film is formed as a code.

11 . A method for manufacturing a liquid crystal display device including a first multi-piece substrate and a second multi-piece substrate facing the first multi-piece substrate and having a plurality of column spacers formed thereon, the method comprising the steps of:

in the first multi-piece substrate, forming a stacked body including a first organic insulating film in a plurality of rectangular panel substrate regions arranged in the first multi-piece substrate, and forming a plurality of patterned metal films and a plurality of second organic insulating films disposed so as to avoid forming regions of the metal films and serving as bases of the column spacers in a mixed manner along sides of the panel substrate region in a non-panel region at the periphery of each of the panel substrate regions; and

forming an alignment film by rubbing a resin film formed on an upper surface of the stacked body in each of the panel substrate regions of the first multi-piece substrate in a direction substantially parallel to or in a direction substantially perpendicular to an arrangement direction of the panel substrate regions, wherein

a hole or a notch is formed in each of the second organic insulating films formed in the non-panel region on one side positioned on a start side of the rubbing, among sides of each of the panel substrate regions, as viewed in a plane, and

the second organic insulating film includes a portion where an organic insulating film is formed and a portion where the organic insulating film is not formed along the rubbing direction due to the hole or the notch.

12 . The method for manufacturing the liquid crystal display device according to claim 11 , wherein

the second organic insulating films formed in the non-panel region on said one side of each of the panel substrate regions are each configured by forming the hole and the notch in plural numbers in a staggered form, as viewed in a plane.

13 . The method for manufacturing the liquid crystal display device according to claim 11 , wherein

the second organic insulating films formed in the non-panel region on said one side of each of the panel substrate regions are each configured by disposing a plurality of organic insulating films in a staggered form, as viewed in a plane.

14 . The method for manufacturing the liquid crystal display device according to claim 11 , wherein

the metal film is formed as a mark.

15 . The method for manufacturing the liquid crystal display device according to claim 14 , wherein

the mark is formed as an alignment mark.

16 . The method for manufacturing the liquid crystal display device according to claim 11 , wherein

the metal film is formed as a code.

17 . The method for manufacturing the liquid crystal display device according to claim 11 , wherein

boundaries of fiber irregularities of a rubbing roller for performing the rubbing are made indistinct due to the hole or the notch.

18 . A liquid crystal display device produced by

rubbing a resin film formed on an upper surface of a stacked body in each of panel regions of a first substrate in a direction substantially parallel to or in a direction substantially perpendicular to an arrangement direction of the panel regions, and

forming, in the case where a side positioned on a rubbing start side, among sides of each of first organic insulating films, is defined as a first side, and each of sides parallel to a rubbing direction, among sides of a second organic insulating film disposed adjacent to the first side, is defined as a second side, a portion of the first side that crosses the second side when the second side is virtually extended in the rubbing direction so as to have a predetermined angle other than 0° and 90° with respect to a direction perpendicular to the rubbing direction, as viewed in a plane.

Assignments (3)
COMPANY SPLIT PLAN TRANSFERRING FIFTY (50) PERCENT SHARE IN PATENT APPLICATIONS Recorded Oct 20, 2011
From: HITACHI DISPLAYS, LTD.
To: IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027092/0684 →
MERGER Recorded Oct 20, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027093/0937 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2010
From: SATO, TAKAO; KOMENO, HITOSHI
To: HITACHI DISPLAYS, LTD.
Reel/Frame 024005/0674 →