IP Library Granted Patent US 9,606,400
Granted Patent B2
US 9,606,400 · App. 14/287,513 · Granted Mar 28, 2017

Display panel

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Quick Facts
Patent No.
US 9,606,400
App. No.
14/287,513
Granted
Mar 28, 2017
Kind
B2
Abstract

A display panel includes: a plurality of pixels; and a first phase shifting layer and a second phase shifting layer, which overlap the pixels, where the first phase shifting layer and at least a portion of the second phase shifting layer are alternately arranged with each other, and a phase difference between light having a predetermined wavelength transmitted through the first phase shifting layer and light having the predetermined wavelength transmitted through the second phase shifting layer is approximately 180 degrees.

Claims (47)

1. A display panel comprising:

a plurality of pixels; and

a first phase shifting layer and a second phase shifting layer, which overlap the pixels,

wherein

the first phase shifting layer and at least a portion of the second phase shifting layer are alternately arranged with each other, and

a phase difference between light having a predetermined wavelength transmitted through the first phase shifting layer and light of the predetermined wavelength transmitted through the second phase shifting layer is approximately 180 degrees,

wherein

each of the pixels comprises first and second sub-pixels which display an image based on different gamma curves from each other, and

the first phase shifting layer includes a portion disposed in a region corresponding to the first sub-pixel of a first pixel of the pixels, and

the second phase shifting layer includes a portion disposed in a region corresponding to the second sub-pixel of the first pixel and adjacent to the first sub-pixel of the first pixel.

2. The display panel of claim 1 , wherein:

the plurality of pixels include a second pixel,

the first phase shifting layer includes a portion disposed in a region corresponding to the second sub-pixel of the second pixel, and

the second phase shifting layer includes a portion disposed in a region corresponding to the first sub-pixel of the second pixel.

3. The display panel of claim 1 , wherein

a refractive index of the first phase shifting layer is greater than a refractive of the second phase shifting layer.

4. The display panel of claim 3 , wherein

the first and second phase shifting layers are disposed in a same layer and have substantially the same thickness as each other.

5. The display panel of claim 4 , wherein

at least one of the first and second phase shifting layers comprises a transparent inorganic material comprising ZrO x , TiO 2 , SiN x , SiO x or MgF 3 , or a transparent organic material.

6. The display panel of claim 3 , wherein

a portion of the second phase shifting layer covers the first phase shifting layer.

7. The display panel of claim 6 , wherein

the first phase shifting layer comprises a transparent inorganic material comprising ZrO x , TiO 2 , SiN x , SiO x or MgF 3 , or a transparent organic material.

8. The display panel of claim 1 , further comprising:

a light blocking member which blocks light leakage between the first sub-pixel and the second sub-pixel of the pixel.

9. A display panel comprising:

a plurality of pixels;

two substrates disposed opposite to each other; and

a first phase shifting layer and a second phase shifting layer, which overlap the pixels,

wherein

the first phase shifting layer and at least a portion of the second phase shifting layer are alternately arranged with each other,

a phase difference between light having a predetermined wavelength transmitted through the first phase shifting layer and light of the predetermined wavelength transmitted through the second phase shifting layer is approximately 180 degrees,

each of the pixels comprises a liquid crystal layer disposed between the two substrates and comprising a plurality of liquid crystal molecules,

each of the pixels comprises a plurality of sub-regions in which arrangement directions of the liquid crystal molecules are different from each other when an electric field is generated in the liquid crystal layer,

the first phase shifting layer is disposed in a region corresponding to a first sub-region among the sub-regions of a pixel of the pixels, and

the second phase shifting layer is disposed in a region corresponding to a second sub-region among the sub-regions of the pixel and adjacent to the first sub-region of the pixel.

10. The display panel of claim 9 , wherein

a refractive index of the first phase shifting layer is greater than a refractive index of the second phase shifting layer.

11. The display panel of claim 10 , wherein

the first and second phase shifting layers are disposed in a same layer and have substantially the same thickness as each other.

12. The display panel of claim 11 , wherein

at least one of the first and second phase shifting layers comprises a transparent inorganic material comprising ZrO x , TiO 2 , SiN x , SiO x or MgF 3 , or a transparent organic material.

13. The display panel of claim 10 , wherein

a portion of the second phase shifting layer covers the first phase shifting layer.

14. The display panel of claim 13 , wherein

the first phase shifting layer comprises a transparent inorganic material comprising ZrO x , TiO 2 , SiN x , SiO x or MgF 3 , or a transparent organic material.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2026
From: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
To: LONESTAR CRYSTAL DISPLAY LLC
Reel/Frame 074944/0730 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2022
From: SAMSUNG DISPLAY CO., LTD.
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 060778/0432 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 27, 2014
From: LEE, KWANG KEUN; KIM, YOUNG MIN; PARK, JAE BYUNG; PARK, HAE IL; SIM, MUN-KI; YOON, SEON-TAE; LEE, BAEK HEE; LEE, JUN HAN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 032965/0899 →