IP Library Granted Patent US 7,965,356
Granted Patent B2
US 7,965,356 · App. 12/504,910 · Granted Jun 21, 2011

Liquid display device and method for fabricating the same

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Quick Facts
Patent No.
US 7,965,356
App. No.
12/504,910
Granted
Jun 21, 2011
Kind
B2
Abstract

A liquid crystal display device includes a first substrate, a second substrate and a liquid crystal interposed between said first and second substrates. The first substrate includes a plurality of thin film transistors, an organic insulating layer, said organic insulating layer including a contact hole exposing an output of each of said thin film transistors, a plurality of first electrodes disposed on said organic insulating layer and each connected with said output, and a viewing-angle varying section between the first electrodes, the viewing-angle varying section including a curved surface of a half-cylindrical shape and protruding from the organic insulating layer. The viewing-angle varying section has a symmetrical shape, and the portions of said first electrode disposed at each side of said viewing-angle varying section asymmetrically extend onto the curved surface of said viewing-angle varying section, to thereby change the reflection factor depending on an observation angle.

Claims (45)

1. A liquid crystal display device comprising:

a first substrate including:

(i) a plurality of thin film transistors arranged in a matrix shape;

(ii) an organic insulating layer insulating said thin film transistors from each other, said organic insulating layer having a contact hole exposing an output of each of said thin film transistors and a projection;

(iii) a plurality of first electrodes formed in a matrix shape on said organic insulating layer, each of said first electrodes having a portion that is connected with said output so as to receive a first electric power, and a rest portion that covers said projection; and

(iv) a viewing-angle varying section between the first electrodes, the viewing-angle varying section having a curved surface of a half-cylindrical shape and protruding from the organic insulating layer;

a second substrate including i) a color filter disposed opposite to said first electrode and ii) a second electrode covering said color filter; and

a liquid crystal interposed between said first substrate and said second substrate,

wherein said viewing-angle varying section has a symmetrical shape, and the portions of said first electrode disposed at each side of said viewing-angle varying section asymmetrically extend onto the curved surface of said viewing-angle varying section, to thereby change the reflection factor depending on an observation angle.

2. A liquid crystal display device comprising:

a first substrate including:

(i) a plurality of thin film transistors arranged in a matrix shape;

(ii) an organic insulating layer insulating said thin film transistors from each other, said organic insulating layer having a contact hole exposing an output of each of said thin film transistors and a projection;

(iii) a plurality of first electrodes formed in a matrix shape on said organic insulating layer, each of said first electrodes having a portion that is connected with said output so as to receive a first electric power, and a rest portion that covers said projection; and

(iv) a viewing-angle varying section between the first electrodes, the viewing-angle varying section having a curved surface of a half-cylindrical shape and protruding from the organic insulating layer;

a second substrate including i) a color filter disposed opposite to said first electrode and ii) a second electrode covering said color filter; and

a liquid crystal interposed between said first substrate and said second substrate,

wherein said viewing-angle varying section has an asymmetrical shape, and the portions of said first electrode disposed at each side of said viewing-angle varying section asymmetrically extend onto the curved surface of said viewing-angle varying section, to thereby change the reflection factor depending on an observation angle.

3. A liquid crystal display device comprising:

a first substrate including:

(i) a plurality of thin film transistors arranged in a matrix shape;

(ii) an organic insulating layer insulating said thin film transistors from each other, said organic insulating layer having a contact hole exposing an output of each of said thin film transistors and a projection;

(iii) a plurality of first electrodes formed in a matrix shape on said organic insulating layer, each of said first electrodes having a portion that is connected with said output so as to receive a first electric power, and a rest portion that covers said projection to have various reflection factors depending on an observation angle, wherein an opening is formed at a portion of each of said first electrodes on each of said projections to have the various reflection factor depending on an observation angle; and

(iv) a viewing-angle varying section between the first electrodes, the viewing-angle varying section having a curved surface protruding from the organic insulating layer;

a second substrate including i) a color filter disposed opposite to said first electrode and ii) a second electrode covering said color filter; and

a liquid crystal interposed between said first substrate and said second substrate,

wherein said viewing-angle varying section has a symmetrical shape, and the portions of said first electrode disposed at each side of said viewing-angle varying section asymmetrically extend onto the curved surface of said viewing-angle varying section, to thereby change the reflection factor depending on an observation angle.

4. A liquid crystal display device comprising:

a first substrate including:

(i) a plurality of thin film transistors arranged in a matrix shape;

(ii) an organic insulating layer insulating said thin film transistors from each other, said organic insulating layer having a contact hole exposing an output of each of said thin film transistors and a projection;

(iii) a plurality of first electrodes formed in a matrix shape on said organic insulating layer, each of said first electrodes having a portion that is connected with said output so as to receive a first electric power, and a rest portion that covers said projection to have various reflection factors depending on an observation angle, wherein an opening is formed at a portion of each of said first electrodes on each of said projections to have the various reflection factor depending on an observation angle; and

(iv) a viewing-angle varying section between the first electrodes, the viewing-angle varying section having a curved surface of a half-cylindrical shape and protruding from the organic insulating layer;

a second substrate including i) a color filter disposed opposite to said first electrode and ii) a second electrode covering said color filter; and

a liquid crystal interposed between said first substrate and said second substrate,

wherein said viewing-angle varying section has a symmetrical shape, and the portions of said first electrode disposed at each side of said viewing-angle varying section asymmetrically extend onto the curved surface of said viewing-angle varying section, to thereby change the reflection factor depending on an observation angle.

5. A liquid crystal display device comprising:

a first substrate including:

(i) a plurality of thin film transistors arranged in a matrix shape;

(ii) an organic insulating layer insulating said thin film transistors from each other, said organic insulating layer having a contact hole exposing an output of each of said thin film transistors and a projection;

(iii) a plurality of first electrodes formed in a matrix shape on said organic insulating layer, each of said first electrodes having a portion that is connected with said output so as to receive a first electric power, and a rest portion that covers said projection to have various reflection factors depending on an observation angle, wherein an opening is formed at a portion of each of said first electrodes on each of said projections to have the various reflection factor depending on an observation angle; and

(iv) a viewing-angle varying section between the first electrodes, the viewing-angle varying section having a curved surface of a half-cylindrical shape and protruding from the organic insulating layer;

a second substrate including i) a color filter disposed opposite to said first electrode and ii) a second electrode covering said color filter; and

a liquid crystal interposed between said first substrate and said second substrate,

wherein said viewing-angle varying section has an asymmetrical shape, and the portions of said first electrode disposed at each side of said viewing-angle varying section asymmetrically extend onto the curved surface of said viewing-angle varying section, to thereby change the reflection factor depending on an observation angle.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029151/0055 →