IP Library Granted Patent US 9,097,926
Granted Patent B2
US 9,097,926 · App. 13/352,361 · Granted Aug 4, 2015

Substrate of display device, display device and manufacturing method for display panel

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Quick Facts
Patent No.
US 9,097,926
App. No.
13/352,361
Granted
Aug 4, 2015
Kind
B2
Abstract

A display device substrate includes a transparent substrate arranged in parallel with a face on which an image is displayed and a light-shielding film partially formed on the transparent substrate for shielding light. The light-shielding film has, at a portion of the transparent substrate along an edge thereof on at least one side, a low light-shielding portion having a lower light-shielding capability. The low light-shielding portion is formed with a smaller thickness than that of the other portion in the light-shielding film. With this configuration, even when, in a gang printing display panel in which a plurality of display panels each having the display device substrate are arranged, the light-shielding films of the display panels adjacent to each other are formed continuously, cutting can be performed more easily at a position to be cut.

Claims (23)

1. A display device substrate, comprising:

a transparent substrate arranged in parallel with a display surface face on which an image is displayed; and

a black matrix partially formed on the transparent substrate for shielding light,

wherein the black matrix includes:

a first black matrix layer; and

a second black matrix layer which contacts the first black matrix layer,

wherein the first black matrix layer includes a contacting region which contacts the second black matrix layer and a non-contacting region which does not contact the second black matrix layer,

wherein a seal material being disposed on the second black matrix layer,

wherein the first black matrix layer and the second black matrix layer of the black matrix extend to a cut edge of the transparent substrate, and

wherein the non-contacting region of the first black matrix layer is disposed along the cut edge of the transparent substrate.

2. A display device comprising:

a display device substrate; and

a backlight configured to radiate light to the display device substrate,

wherein the display device substrate includes:

a transparent substrate arranged in parallel with a display surface on which an image is displayed, and

a black matrix partially formed on the transparent substrate for shielding light,

wherein the black matrix includes:

a first black matrix layer; and

a second black matrix layer which contacts the first black matrix layer,

wherein the first black matrix layer includes a contacting region which contacts the second black matrix layer and a non-contacting region which does not contact the second black matrix layer,

wherein a seal material being disposed on the second black matrix layer,

wherein the first black matrix layer and the second black matrix layer of the black matrix extend to a cut edge of the transparent substrate, and

wherein the non-contacting region of the first black matrix layer is disposed along the cut edge of the transparent substrate.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
CHANGE OF NAME Recorded Dec 6, 2013
From: JAPAN DISPLAY EAST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 031769/0048 →
CHANGE OF NAME Recorded Dec 5, 2013
From: HITACHI DISPLAYS, LTD.
To: JAPAN DISPLAY EAST INC.
Reel/Frame 031765/0789 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2012
From: SATO, TAKAO; SUGIYAMA, SAORI
To: HITACHI DISPLAYS, LTD.
Reel/Frame 027547/0982 →