Display with micro light modulator

• US 6,570,336 B2
• Filed: 06/29/2001
• Issued: 05/27/2003
• Est. Priority Date: 07/25/2000
• Status: Expired due to Fees

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Ham, Yong Sung, Hong, Hyung Ki
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): Dinh, Trinh Vo
• Application Number:
  US09/893,773
• Publication Number:
  US 20020047564A1
• Time in Patent Office: 697 Days
• Field of Search: 315/169.3, 315/169.4, 315/169.1, 313/125, 313/146, 313/265, 313/293, 313/383, 313/390, 313/417, 313/444, 313/449
• US Class Current: 315/169.3
• CPC Class Codes: G02B 26/02 for controlling the intensity of light G02B26/004 takes precedence
• CPC Class Codes: G09G 3/2074 using sub-pixels

Abstract

A display with a micro light modulators including a transparent substrate, a plurality of fixed electrodes on the substrate, a plurality of movable electrodes over and between the fixed electrodes, each movable electrode having a size different from one another and overlapping portions of adjacent fixed electrodes, and a back light on a back surface of the substrate.

Claims

1. A display with a micro light modulator comprising:

a transparent substrate;

a plurality of fixed electrodes on the substrate;

a plurality of movable electrodes over and between the fixed electrodes, each movable electrode having a size different from one another and overlapping portions of adjacent fixed electrodes; and

a back light on a back surface of the substrate.

2. The display of claim 1, wherein the plurality of movable electrodes have widths that gradually increase in one direction.

3. The display of claim 1, wherein the plurality of movable electrodes have lengths that gradually increase in one direction.

4. The display of claim 1, wherein the display has at least one pixel and the plurality of movable electrodes have different widths decreasing in width to both sides of a given pixel from a center of the pixel.

5. The display of claim 1, wherein the plurality of movable electrodes have widths and lengths that both that gradually increase in one direction.

6. The display of claim 1, wherein widths and lengths of the fixed electrodes are proportional to widths and lengths of the movable electrodes.

7. The display of claim 1, further comprising an elastic material layer positioned under each of the movable electrodes.

8. The display of claim 1, wherein the display has at least one pixel and the plurality of movable electrodes have different widths increasing in width to both sides of a given pixel from a center of a given pixel.

9. A display with a micro light modulator comprising:

a substrate;

a plurality of fixed electrodes on the substrate;

a plurality of movable electrodes each having first micro supports at both lengthwise ends and a second micro support at a location between the first micro supports, wherein each of the movable electrodes has the second micro support at a different location along each of the movable electrodes and wherein each of the movable electrodes is formed over and between the fixed electrodes, and overlaps portions of adjacent fixed electrodes; and

a back light on a back surface of the substrate.

10. The display of claim 9, wherein the plurality of movable electrodes have widths and lengths that gradually increase in one direction.

11. The display of claim 9, wherein the plurality of movable electrodes have widths that gradually increase in one direction.

12. The display of claim 9, wherein the plurality of movable electrodes have lengths that gradually increase in one direction.

13. The display of claim 9, further comprising an elastic material layer positioned under each of the movable electrodes.

14. A display with a micro light modulator comprising:

a substrate;

a plurality of fixed electrodes on the substrate;

a plurality of movable electrodes each having at least one micro support, wherein each of the movable electrodes overlap with portions of adjacent ones of the fixed electrodes, and wherein widths and lengths of the fixed electrodes are respectively proportional to widths and lengths of the movable electrodes;

an insulating material layer positioned under each of the movable electrodes; and

a back light on a back surface of the substrate.

15. The display of claim 14, wherein the plurality of movable electrodes have widths that increase in one direction.

16. The display of claim 14, wherein the plurality of movable electrodes have lengths that increase in one direction.

17. The display of claim 16, wherein the plurality of movable electrodes each has micro supports at both lengthwise ends thereof and a second micro support at a location between the first micro supports and wherein the location of the second micro support is different in each of the movable electrodes.

18. The display of claim 14, wherein the plurality of movable electrodes each either decreases or increases in width to both sides from a center movable electrode.

19. The display of claim 14, wherein the plurality of movable electrodes have widths that gradually increase in one direction.