IP Library Granted Patent US 8,625,059
Granted Patent B2
US 8,625,059 · App. 13/456,893 · Granted Jan 7, 2014

Liquid crystal display device

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Quick Facts
Patent No.
US 8,625,059
App. No.
13/456,893
Granted
Jan 7, 2014
Kind
B2
Abstract

In a screen configuration in which pixels are in a delta arrangement, video signal lines are formed on every other pixel, and two scanning lines in one set are disposed, transmittance of the screen is improved. Pixels corresponding to a red pixel (R), a green pixel (G), and a blue pixel (B) are disposed in a delta arrangement in a TFT substrate. A red color filter, a green color filter, a blue color filter are formed, in a counter substrate, corresponding to the red pixel (R), the green pixel (G), and the blue pixel (B) of the TFT substrate. A black matrix is formed to a portion where the color filter is not present. Two blue color filters are formed continuously adjacent each other in the first direction, and a black matrix is not formed between the blue color filters adjacent each other.

Claims (11)

1. A liquid crystal display device having liquid crystals put between a TFT substrate where pixels each having a pixel electrode and a TFT are formed and a counter substrate in which color filters are formed, wherein

the TFT substrate includes pixels corresponding to a red pixel (R), a green pixel (G), and a blue pixel (B) disposed in a delta arrangement, the pixels disposed in the delta arrangement being disposed in a first direction,

the TFT substrate includes a set of a first scanning line and a second scanning line extended in the first direction, the set of a first scanning line and a second scanning line being disposed in a second direction,

video signal lines are extended in the second direction and disposed on every other pixel in the first direction,

pixels corresponding to the blue pixel (B) are disposed adjacent to each other in the first direction, and the video signal line is not present between the blue pixels (B) and (B) adjacent each other,

the counter substrate includes a red color filter, a green color filter, and a blue color filter formed corresponding to the red pixel (R), the green pixel (G), and the blue pixel (B) of the TFT substrate, and a black matrix is formed to a portion where the color filter is not present, and

the blue color filter is formed such that two blue color filters are formed continuously adjacent each other in the first direction, and a black matrix is not formed between the blue color filters adjacent each other.

2. The liquid crystal display device according to claim 1 , wherein

the red pixel (R) in the TFT substrate is formed such that two red pixels (R) are formed continuously adjacent each other in the first direction, and the black matrix is not formed between the red color filter and another red color filter.

3. The liquid crystal display device according to claim 1 , wherein

four kinds of triangles, that is, a triangle with the red pixel (R) being as an apex, an inverted triangle with the blue pixel (B) being as an apex, a triangle with the blue pixel (B) being as an apex, and an inverted triangle with the red pixel (R) being as an apex comprise a set of the pixels, and the set of the pixels are disposed in the first direction in the TFT 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 Jan 3, 2014
From: HITACHI DISPLAYS, LTD.
To: JAPAN DISPLAY EAST INC.
Reel/Frame 031888/0734 →
CHANGE OF NAME Recorded Jan 3, 2014
From: JAPAN DISPLAY EAST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 031888/0794 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2012
From: NAGAMI, TAKAHIRO
To: HITACHI DISPLAYS, LTD.
Reel/Frame 028166/0395 →