IP Library Granted Patent US 9,323,081
Granted Patent B2
US 9,323,081 · App. 14/296,935 · Granted Apr 26, 2016

Liquid crystal display apparatus and method of manufacturing the same

View Patent ↗
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 9,323,081
App. No.
14/296,935
Granted
Apr 26, 2016
Kind
B2
Abstract

A method of manufacturing a liquid crystal display apparatus includes adhering an array substrate and a counter substrate to form a liquid crystal cell; injecting liquid crystal between the array substrate and the counter substrate; adhering an optical film having been cut away at one corner thereof in a triangular shape on the surface of the counter substrate: and mounting a back light to the liquid crystal cell by aligning a corner of the liquid crystal cell and a corner of the back light on the notched portion.

Claims (25)

1. A method of manufacturing a liquid crystal display apparatus comprising:

forming a liquid crystal cell, in which a liquid crystal layer is held between an array substrate and a counter substrate;

adhering an optical film having a notched, portion formed by cutting at least one of corners away on a front surface of the array substrate or the counter substrate of the liquid crystal cell;

aligning a corner of the liquid crystal cell and a corner of a back light at the notched portion of the optical film; and

mounting the back light so as to overlap with the liquid crystal cell.

2. The method of manufacturing a liquid crystal display apparatus according to claim 1 , wherein aligning the corner of the liquid crystal cell and the corner of the back light is performed by observing the corners through the notched portion from above the counter substrate.

3. The method of manufacturing a liquid crystal display apparatus according to claim 1 , wherein the optical film is a polarizing plate or a retardation film.

4. A liquid crystal display apparatus comprising:

a liquid crystal cell formed by adhering an array substrate and a counter substrate via a liquid crystal layer; and a back light, wherein

at least one of four corners of an optical film to be adhered to the array substrate or the counter substrate is cut away to form a notched portion,

an area of the optical film is larger than the array substrate or the counter substrate at places except at the notched portion.

5. The liquid crystal display apparatus according to claim 4 , wherein the optical film is a polarizing plate or a retardation film.

6. The liquid crystal display apparatus according to claim 4 , wherein a side of the notched portion is formed to be inclined to a side of the optical film, and the corners of the liquid crystal cell and the backlight are exposed in the notched portion.

7. The liquid crystal display apparatus according to claim 4 , wherein, at the notched portion, a fringe of the optical film runs in a direction inclined to directions of fringes of the optical film in other parts so that a corner portion of the back light is observable through the array and counter substrates; which are transparent, when a frame covering a non-viewing fringe area of the liquid crystal cell is detached.

8. A method of manufacturing a liquid crystal display apparatus comprising:

forming a liquid crystal cell, in which a liquid crystal layer is held between an array substrate and a counter substrate;

adhering an optical film having a notched portion formed by cutting at least one of corners away on a front surface of the array substrate or the counter substrate of the liquid crystal cell;

aligning the liquid crystal cell and a back light by observing corners of the liquid crystal cell and the back light through the notched portion of the optical film; and

mounting the back light to overlap with the liquid crystal cell.

9. A liquid crystal display apparatus comprising:

a liquid crystal cell formed by adhering an array substrate and a counter substrate via a liquid crystal layer; and

a back light;

wherein

at least one of four corners of an optical film to be adhered to the array substrate or the counter substrate is cut away to form a notched portion,

dimensions of the optical film are larger than corresponding dimensions of the array substrate or the counter substrate so that fringes of the optical film outwardly protrude from fringes of the array substrate or the counter substrate at least in vicinity of, and except at, the notched portion.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 5, 2014
From: KUBOTA, NAOYA
To: JAPAN DISPLAY INC.
Reel/Frame 033040/0337 →