IP Library Granted Patent US 7,728,914
Granted Patent B2
US 7,728,914 · App. 10/765,076 · Granted Jun 1, 2010

Position encoded sensing device with amplified light reflection intensity and a method of manufacturing the same

Assignee: Au Optronics Corporation
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Quick Facts
Patent No.
US 7,728,914
App. No.
10/765,076
Granted
Jun 1, 2010
Kind
B2
Abstract

A display panel for amplifying light reflection intensity. The display includes a substrate, at least one protrusion on one face of the substrate, and a light reflective layer deposited on the at least one protrusion. The at least one protrusion amplifies light reflection intensity when light is reflect off the light reflective layer.

Claims (38)

1. A display panel for amplifying light reflection intensity, the display panel comprising:

a substrate;

at least one protrusion disposed on a surface of the substrate

a light reflective layer deposited on a surface of the protrusion opposite the substrate, wherein the protrusion amplifies light reflection intensity when light is reflect off the light reflective layer; and

a light shielding layer disposed on a surface of the light reflective layer opposite the at least one protrusion,

wherein the light reflective layer comprises programmable code information and the protrusion amplifies the light reflection intensity such that the programmable code information is optimally detected.

2. The display panel of claim 1 , wherein the programmable code information comprises at least one position sensing code.

3. The display panel of claim 1 , wherein the protrusion is configured to optimally amplify light reflective intensity.

4. The display panel of claim 3 , wherein the protrusion comprises at least one arcuate protrusion or at least one angular protrusion.

5. The display panel of claim 1 , wherein the light reflective layer is disposed between the protrusions and the light shielding layer, such that the programmable code information is located between the protrusions and the light shielding layer.

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

a plurality of protrusions formed on a part of the surface of the substrate.

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

a plurality of protrusions formed on and throughout the surface of the substrate.

8. The display panel of claim 1 , wherein the substrate and the protrusion comprise the same material.

9. The display panel of claim 1 , wherein the substrate and the protrusion comprise different transparent materials.

10. The display panel of claim 1 , wherein the light reflective layer comprises at least one selected from a group consisting of Cr, Al, and Ag.

11. A liquid crystal display panel comprising:

a substrate;

a plurality of protrusions disposed on a surface of the substrate;

a light reflective layer disposed on a surface of the plurality of protrusions opposite the substrate, wherein the light reflective layer comprises programmable code information;

a light shielding layer disposed on a surface of the light reflective layer opposite the plurality of protrusions; and

a plurality of color filters, wherein the light shielding layer and the light reflective layer are between adjacent color filters.

12. The liquid crystal display panel of claim 11 , wherein the programmable code information comprises at least one position sensing code.

13. The liquid crystal display panel of claim 11 , wherein the plurality of protrusions are at least one selected from a group consisting of arcuate protrusions and angular protrusions.

14. The liquid crystal display panel of claim 11 , wherein the light reflective layer is located between the plurality of protrusions and the light shielding layer, and thereby the programmable code information is located between the plurality of protrusions and the light shielding layer.

15. The liquid crystal display panel of claim 11 , wherein the plurality of protrusions are formed on a part of the surface of the substrate.

16. The liquid crystal display panel of claim 11 , wherein the plurality of protrusions are located on and throughout the surface of the substrate.

17. The liquid crystal display panel of claim 11 , wherein the substrate and the plurality of protrusions comprise the same material.

18. The liquid crystal display panel of claim 11 , wherein the substrate and the plurality of protrusions comprise different transparent materials.

19. The display panel of claim 11 , wherein the light reflective layer comprises at least one selected from a group consisting of Cr, Al, and Ag.

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

a plurality of light reflective layers disposed on a surface of the at least one protrusion;

a plurality of light shielding layers, wherein each light shielding layer is disposed on the surface of a light reflective layer opposite the at least one protrusion; and

a plurality of color filters, wherein the plurality of color filters are disposed on the surface of the substrate, and wherein at least one light shielding layer and at least one light reflective layer are located between adjacent color filters.

21. The liquid crystal display panel of claim 11 , wherein two adjacent color filters are spaced apart by a light shielding layer and a light reflective layer.

22. The display panel of claim 1 , wherein the at least one protrusion is disposed directly on the surface of the substrate, the light reflective layer is deposited directly on the surface of the protrusion opposite the substrate, and the light shielding layer is disposed directly on the surface of the light reflective layer opposite the at least one protrusion.

23. The liquid crystal display panel of claim 11 wherein the plurality of protrusions are disposed directly on the surface of the substrate, the light reflective layer is disposed directly on the surface of the plurality of protrusions opposite the substrate, and the light shielding layer is disposed directly on the surface of the light reflective layer opposite the plurality of protrusions.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2023
From: AUO CORPORATION
To: OPTRONIC SCIENCES LLC
Reel/Frame 064658/0572 →
CHANGE OF NAME Recorded May 25, 2023
From: AU OPTRONICS CORPORATION
To: AUO CORPORATION
Reel/Frame 063785/0830 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2004
From: TSENG, HSU-PING; LIAO, CHEN-HSIEN
To: AU OPTRONICS CORPORATION
Reel/Frame 014941/0909 →
Continuity (1)
Related Publication 20050162401A1 · Jul 28, 2005