IP Library Granted Patent US 7,936,423
Granted Patent B2
US 7,936,423 · App. 12/008,676 · Granted May 3, 2011

Display device

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Quick Facts
Patent No.
US 7,936,423
App. No.
12/008,676
Granted
May 3, 2011
Kind
B2
Abstract

A liquid crystal display device 1 has subpixels 10 having a light-transmissive region 10 a and a light-reflective region 10 b . A color filter layer 50 corresponding to an identification pattern 70 that it is desired to be displayed when the liquid crystal display device 1 's power is off is formed at the light-reflective regions 10 b , so that even when the liquid crystal display device 1 is in the non-driven state, incident external light emerges as outgoing light having the colors of the color layers corresponding to the identification pattern, and hence the identification pattern can be displayed. Thus, any desired pattern can be displayed in the liquid crystal display device's non-driven state, so that a liquid crystal display device with extensive expression and superior display characteristics is provided.

Claims (9)

1. A display device comprising:

a plurality of subpixels having light-reflective regions and light-transmissive regions; and

a display area constituted of the subpixels arranged in a matrix;

a color layer being formed corresponding to a pattern that is desired to be displayed in the display area when the display device is in a non-driven state in the light-reflective regions of the subpixels corresponding to the pattern.

2. The display device according to claim 1 , further comprising:

a first substrate and a second substrate that are disposed opposing each other; and

a liquid crystal layer that is sandwiched between the first substrate and the second substrate;

wherein, at least the light-reflective regions of the subpixels corresponding to the pattern that is desired to be displayed in the display area are in a normally white mode that is displayed as white in the non-driven state.

3. The display device according to claim 1 , wherein the color layer corresponding to the pattern is a hue composed of a red layer, a green layer, and a blue layer.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2013
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 031377/0942 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2010
From: EPSON IMAGING DEVICES CORPORATION
To: SONY CORPORATION
Reel/Frame 024500/0239 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2008
From: KAMIJO, KIMITAKA; TAKIZAWA, KEIJI; UEHARA, TOSHINORI; NAKANO, TOMOYUKI
To: EPSON IMAGING DEVICES CORPORATION
Reel/Frame 020400/0491 →