Display device and lenticular sheet of the display device and method thereof

• US 8,149,348 B2
• Filed: 04/17/2009
• Issued: 04/03/2012
• Est. Priority Date: 04/22/2008
• Status: Expired due to Fees

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Yun, Hae-Young, Lee, Seung-Hoon, Kim, Sung-Woon, Lu, JianGang, Kim, Hee-Seop
• Primary Examiner(s): Pak, Sung
• Application Number:
  US12/425,549
• Publication Number:
  US 20090262420A1
• Time in Patent Office: 1,082 Days
• Field of Search: 349/57
• US Class Current: 349/57
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/29 characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size
• CPC Class Codes: H04N 13/305 using lenticular lenses, e.g. arrangements of cylindrical lenses

Abstract

A display device includes a display panel on which a plurality of pixels are arranged in a matrix, and a lenticular sheet which is disposed above the display panel and includes a plurality of prism lenses disposed on the lenticular sheet. Each of the plurality of prism lenses includes a first surface, a second surface and a third surface. Each surface of the prism lens is disposed extending in a first direction substantially parallel to a longitudinal direction of the prism lenses, and arranged substantially parallel with each other.

Claims

1. A display device comprising:

a display panel on which a plurality of pixels for displaying images are arranged in a matrix; and

a lenticular sheet disposed above the display panel and comprising a plurality of prism lenses, each of the plurality of prism lenses including a first, a second and a third substantially linear planar surface,

wherein

the first, second and third linear surfaces are disposed extending in a first direction corresponding to a longitudinal direction of the prism lenses, and disposed extending substantially parallel to each other, and

pairs of adjacent pixels are aligned substantially linearly with each other along both the first direction, and a second direction substantially perpendicular to the first direction, in a plan view.

2. The display device of claim 1, wherein the prism lenses have rounded edges.

3. The display device of claim 1, wherein each of a pair of adjacent pixels are different colors.

4. The display device of claim 1, wherein a number of pixels corresponding to a number of surfaces of each of the prism lenses are overlapped by each of the prism lenses along a direction perpendicular to the longitudinal direction of the prism lenses.

5. The display device of claim 1, wherein pairs of adjacent pixels are misaligned with each other along the first direction.

6. The display device of claim 5, wherein each group of misaligned pixels in the first direction includes pixels overlapping a common edge of adjacent surfaces of the prism lens, in the plan view.

7. The display device of claim 5, wherein a group of pixels includes pixels disposed substantially along the second direction and linearly aligned with each other in the second direction.

8. The display device of claim 7, further comprising a plurality of the group of pixels, wherein each pixel in each group of pixels overlaps a common edge of two adjacent surface of the prism lens, in the plan view.

9. The display device of claim 1, wherein the pixels are bent along a direction, other than the first.

10. The display device of claim 9, wherein the pixels are bent along the first direction of the prism lenses in a zigzag manner.

11. The display device of claim 1, wherein the first direction forms an acute angle with at least one boundary of each of the pixels.

12. The display device of claim 1, wherein the prism lenses have a variable refractive index.

13. The display device of claim 12, wherein the prism lenses are fluid lenses or liquid crystal lenses.

14. The display device of claim 1, wherein the prism lenses are Fresnel lenses.

15. The display device of claim 1, wherein an absolute value of a radius of curvature of at least one surface of each of the prism lenses is at least two times greater than an average radius of curvature of the prism lenses.

16. A lenticular sheet comprising:

a base; and

a plurality of prism lenses disposed on the base;

each of the plurality of prism lenses including a first surface, a second surface and a third surface, wherein each surface extends in a first direction which corresponds to a longitudinal direction of the prism lenses and to an alignment direction of pixels for displaying images of a display panel,

the first surface, the second surface and the third surface being arranged substantially parallel to each other.

17. The lenticular sheet of claim 16, wherein the prism lenses have rounded edges.

18. The lenticular sheet of claim 16, wherein the prism lenses are Fresnel lenses.

19. A method of forming a display device, the method including:

disposing a plurality of pixels for displaying images of a display panel in a plurality of columns arranged substantially in a first direction, and in a plurality of rows arranged substantially in a second direction perpendicular to the first direction;

disposing a black matrix adjacent to all edges of each pixel of the plurality of pixels;

forming a lenticular sheet including a plurality of prism lenses, each of the prism lenses including a first surface, a second surface and a third surface, each surface being disposed extending in the first direction, the first surface, the second surface and the third surface being arranged substantially parallel to each other, wherein the second surface is disposed at a central area of the prism lens, in a plan view;

disposing the lenticular sheet above the display panel such that each view of the display panel through a prism includes an entire of a first pixel to be observed, black matrices that surround the first pixel to be observed, and part of a second pixel adjacent to the first pixel be observed.