IP Library Granted Patent US 7,423,664
Granted Patent B2
US 7,423,664 · App. 10/535,754 · Granted Sep 9, 2008

Transflective liquid crystal display device having alignment film covering plural isolated stacks of resin and diffusive reflective plate layers

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Quick Facts
Patent No.
US 7,423,664
App. No.
10/535,754
Granted
Sep 9, 2008
Kind
B2
Abstract

A transflective liquid crystal display device with a reflective mode using external light and a transmissive mode using a light source comprising a light source ( 11 ) used in the transmissive mode, a liquid crystal panel ( 12 ), arranged over the light source, for operating as display element and a diffusing optical element ( 13 ), arranged over the liquid crystal panel, for having a scattering state in the reflective mode and having a non-scattering state in the transmissive mode.

Claims (8)

1. A transflective liquid crystal display device with a reflective mode using external light and a transmissive mode using a light source comprising:

a light source used in the transmissive mode;

a liquid crystal panel, arranged over said light source, said liquid crystal panel operating as a display element; and

a diffusing optical element, arranged over said liquid crystal panel, said diffusing optical element having a scattering state in said reflective mode and having a non-scattering state in said transmissive mode;

wherein said liquid crystal panel has a pair of glass substrates sandwiching a liquid crystal layer and a polarizer is arranged on each of said pair of glass substrates, wherein said diffusing optical element is arranged between an upper glass substrate of said pair of glass substrates and said polarizer arranged on said upper glass substrate;

wherein said liquid crystal layer and a lower glass substrate of said pair of glass substrates sandwich a continuous transparent electrode on the lower glass substrate, a plurality of isolated stacks on the continuous transparent electrode, and an alignment film covering the isolated stacks and the continuous transparent electrode, and wherein each of the isolated stacks comprises a resin layer and a diffusive reflective plate thereon.

2. The device according to claim 1 , further comprising switch controlling means for controlling to supply said diffusing optical element with power such that said diffusing optical element has a scattering state in said reflective mode and has a non-scattering state in said transmissive mode.

3. The device according to claim 1 , wherein said diffusing optical element has a polymer dispersed liquid crystal or a polymer network liquid crystal.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR/ASSIGNEE PREVIOUSLY RECORDED AT REEL: 050704 FRAME: 0082. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Nov 12, 2019
From: INNOLUX HONG KONG HOLDING LIMITED
To: INNOLUX CORPORATION
Reel/Frame 050991/0313 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE/ASSIGNOR PREVIOUSLY RECORDED AT REEL: 050704 FRAME: 0082. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Nov 12, 2019
From: INNOLUX HONG KONG HOLDING LIMITED
To: INNOLUX CORPORATION
Reel/Frame 050991/0872 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 10, 2019
From: INNOLUX CORPORATION
To: INNOLUX HONG KONG HOLDING LIMITED
Reel/Frame 050704/0082 →
CHANGE OF NAME Recorded Oct 8, 2019
From: TPO HONG KONG HOLDING LIMITED
To: INNOLUX HONG KONG HOLDING LIMITED
Reel/Frame 050662/0619 →