ELECTRONIC DISPLAY

• US 20090002267A1
• Filed: 05/02/2008
• Published: 01/01/2009
• Est. Priority Date: 06/27/2007
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Ku, Ja-Seung, Nam, Hui, Park, Chan-Young, Kim, Beom-Shik
• Application Number:
  US12/114,320
• Publication Number:
  US 20090002267A1
• Time in Patent Office: Days
• US Class Current: 345/6
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/31 involving active parallax barriers involving directional light or back-light sources G02B30/33
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/356 having separate monoscopic and stereoscopic modes

Abstract

An electronic display includes a display unit for displaying both a two-dimensional image and a three-dimensional image, and a barrier facing the display unit to convert an image into the two-dimensional or three-dimensional image. The barrier includes first and second substrates facing each other, a plurality of first electrodes on the first substrate, an insulation layer on the first substrate and covering the first electrodes, a plurality of second electrodes on the insulation layer, and a liquid crystal layer disposed between the first and second substrates. The first electrodes are aligned with gaps between the second electrodes and the second electrodes are aligned with gaps between the first electrodes. Widths of the first electrodes may be equal to or greater than the gaps between the second electrodes. Widths of the second electrodes may be equal to or greater than the gaps between the first electrodes.

Claims

1. An electronic display comprising:

a display unit for displaying an image; and

a barrier facing the display unit for converting the image into a two-dimensional image or a three-dimensional image,

wherein the barrier includes;

a first substrate and a second substrate facing each other,

a plurality of first electrodes on the first substrate, an insulation layer on the first substrate and covering the first electrodes,

a plurality of second electrodes on the insulation layer, and

a liquid crystal layer between the first and second substrates,

wherein the first electrodes are aligned with gaps between the second electrodes and the second electrodes are aligned with gaps between the first electrodes, and widths of the first electrodes are equal to or greater than the gaps between the second electrodes.

2. The electronic display of claim 1, wherein the first electrodes and the second electrodes are in stripe patterns.

3. The electronic display of claim 1, wherein the widths of the first electrodes are substantially the same as the widths of the second electrodes.

4. The electronic display of claim 1, wherein the gaps between the first electrodes are substantially the same as the gaps between the second electrodes.

5. The electronic display of claim 1, wherein the widths of the first electrodes, the widths of the second electrodes, the gaps between the first electrodes, and the gaps between the second electrodes are substantially the same as each other.

6. The electronic display of claim 1, wherein the widths of the first electrodes are same as those of the second electrodes and the gaps between the first electrodes are same as those between the second electrodes, the widths are greater than the gaps.

7. The electronic display of claim 1, wherein both edges of each of the second electrodes in a width direction overlap adjacent edges of adjacent first electrodes.

8. The electronic display of claim 1, further comprising a third electrode on the second substrate, wherein the third electrode is a single body on the second substrate.

9. The electronic display of claim 1, wherein the barrier is a normally white mode liquid crystal display.

10. The electronic display of claim 1, wherein the display unit includes first pixel groups and second pixel groups alternately arranged in a direction in which the first electrodes are spaced apart from each other;

a liquid crystal driving voltage is applied to the first electrodes in a first period such that pixels of the first pixel groups display a left eye image and pixels of the second pixel groups display a right eye image; and

a liquid crystal driving voltage is applied to the second electrodes in a second period such that the pixels of the first pixel groups display the right eye image and the pixels of the second pixel groups display the left eye image.

11. The electronic display of claim 9, wherein the left eye image and the right eye image are displayed using time-division driving.

12. The electronic display of claim 1, wherein, when the display unit displays the two-dimensional image, the barrier is turned off.

13. An electronic display comprising:

a display unit for displaying an two-dimensional image; and

a barrier facing the display unit for converting the image into a two-dimensional image or a three-dimensional image,

wherein the barrier includes;

a first substrate and a second substrate facing each other,

a plurality of first electrodes on the first substrate, an insulation layer on the first substrate and covering the first electrodes,

a plurality of second electrodes on the insulation layer, and

a liquid crystal layer between the first and second substrates,

wherein the first electrodes are aligned with gaps between the second electrodes and the second electrodes are aligned with gaps between the first electrodes, and widths of the second electrodes are equal to or greater than the gaps between the first electrodes.

14. The electronic display of claim 13, wherein the first electrodes and the second electrodes are in stripe patterns.

15. The electronic display of claim 13, wherein the widths of the first electrodes are substantially the same as the widths of the second electrodes.

16. The electronic display of claim 13, wherein the gaps between the first electrodes are substantially the same as the gaps between the second electrodes.

17. The electronic display of claim 13, wherein both edges of each of the second electrodes in a width direction overlap adjacent edges of adjacent first electrodes.

18. The electronic display of claim 13, further comprising a third electrode on the second substrate, wherein the third electrode is a single body on the second substrate.

19. The electronic display of claim 13, wherein the barrier is a normally white mode liquid crystal display.

20. The electronic display of claim 13, wherein the display unit includes first pixel groups and second pixel groups alternately arranged in a direction in which the first electrodes are spaced apart from each other;

a liquid crystal driving voltage is applied to the first electrodes in a first period such that pixels of the first pixel groups display a left eye image and pixels of the second pixel groups display a right eye image; and

a liquid crystal driving voltage is applied to the second electrodes in a second period such that the pixels of the first pixel groups display the right eye image and the pixels of the second pixel groups display the left eye image.

21. The electronic display of claim 20, wherein the left eye image and the right eye image are displayed using time-division driving.

22. The electronic display of claim 13, wherein the barrier is turned off when the display unit displays the two-dimensional image.