IP Library Granted Patent US 9,013,645
Granted Patent B2
US 9,013,645 · App. 13/210,215 · Granted Apr 21, 2015

Polarizing panel and display device having the same

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Quick Facts
Patent No.
US 9,013,645
App. No.
13/210,215
Granted
Apr 21, 2015
Kind
B2
Abstract

A polarizing panel includes a first substrate, a second substrate and an interposed first liquid crystal layer. The first substrate includes a plurality of spaced apart and segment electrodes and segments of a first light-blocking member disposed within interval areas between the segment electrodes. The second substrate faces the first substrate to include a common electrode facing the segment electrodes. The first liquid crystal layer is able to selectively apply a first polarizing effect to light rays passing therethrough when in a corresponding first state and to apply a different second polarizing effect to passing through light rays when in a corresponding second state, where the first and second states can be selectively chosen by voltages applied to the segment electrodes. The light-blocking member can reduce image crosstalk lights from being emitted from the interval areas between the segment electrodes, so that a crosstalk component of a formed 3D image may be prevented or reduced due to light-blocking effects.

Claims (22)

1. A display device comprising:

a display panel configured to interleavingly display a left-eye image and a right-eye image;

a light source module configured to provide the display panel with lights;

a polarizing panel disposed in front of the display panel and comprising a plurality of spaced apart segment electrodes and one or more light-blocking members disposed in corresponding interval areas between adjacent ones of the spaced apart segment electrodes, the polarizing panel being structured to selectively apply a first polarizing effect to light rays passing therethrough when in a corresponding first state and to apply a different second polarizing effect to passing through light rays when in a corresponding second state, where the first and second states can be selectively chosen by voltages applied to the segment electrodes;

a plurality of gate lines longitudinally extended in a same longitudinally extending direction of the segment electrodes; and

a second light-blocking member overlapped with the gate lines.

2. The display device of claim 1 ,

wherein the one or more light-blocking members of the polarizing panel define a first light-blocking member, and

the first light-blocking member overlaps the second light-blocking member within an area in which the second light-blocking member is formed.

3. The display device of claim 2 , further comprising:

a segments driving part configured and connected to apply respective driving voltages to the segment electrodes in synchronization with when the left-eye image is being displayed on at least part of the display pane, and in synchronization with when the right-eye image is displayed on at least part of the display panel.

4. The display device of claim 3 , wherein the first light-blocking member is overlapped with an end portion of a first segment electrode and an end portion of a second segment electrode.

5. The display device of claim 4 , wherein the first light-blocking member comprises a same material as the second light-blocking member.

6. The display device of claim 3 , wherein the first light-blocking member comprises:

a line part disposed on the interval area; and

a contact portion protruded from the line part to be connected to the first segment electrode.

7. The display device of claim 6 , wherein the first light-blocking member comprises a metal material.

8. The display device of claim 6 , wherein the first light-blocking member comprises a first light-blocking layer comprising a metal material and a second light-blocking layer comprising an organic material.

9. The display device of claim 6 , wherein the segments driving part directly applies the respective driving voltages to respective segment portions of the first light-blocking member.

10. The display device of claim 3 , wherein the first light-blocking member is overlapped with an end portion of a first segment electrode by making contact with the end portion of the first segment electrode, and is spaced apart from an end portion of a second segment electrode.

11. The display device of claim 10 , wherein the light-blocking member comprises at least one of a conductive light reflecting material and a light-blocking material.

12. The display device of claim 10 , wherein the segments driving part directly applies the driving voltages to the first light-blocking member.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029016/0026 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 15, 2011
From: LEE, DONG-YOON; KIM, SUNG-HOON
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 026752/0714 →