Display apparatus

Patent metadata

Field	Value
Publication number	US-10008554-B2
Application number	US-201615176049-A
Country	US
Kind code	B2
Filing date	Jun 7, 2016
Priority date	Sep 30, 2015
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

A display apparatus includes a display apparatus includes a display panel including a curved display area, and an optical unit including a liquid crystal layer on the curved display area, and configured to adjust a direction of light emitted from the display panel.

First claim

What is claimed is:

1. A display apparatus comprising:
a display panel comprising a plurality of curved display areas; and
a plurality of optical units comprising a liquid crystal layer respectively located on the curved display areas, and configured to adjust a direction of light emitted from the display panel.

2. The display apparatus of claim 1 , wherein the optical units further comprise:
a plurality of lower electrodes at the curved display areas;
thin film transistors on the display panel, and respectively electrically connected to the lower electrodes;
a first substrate facing the display panel with the liquid crystal layer therebetween; and
an upper electrode on the first substrate and facing the lower electrodes.

3. The display apparatus of claim 2 , wherein the optical units further comprise a second substrate coupled to the display panel between the first substrate and the display panel,
wherein the liquid crystal layer is between the first and second substrates, and
wherein the lower electrodes are on the second substrate.

4. The display apparatus of claim 2 , wherein the display panel comprises an organic light emitting display panel.

5. The display apparatus of claim 2 , further comprising a window over the optical unit.

6. The display apparatus of claim 5 , further comprising a polarizing plate between the optical unit and the window.

7. The display apparatus of claim 1 , further comprising a detection unit electrically connected to the optical unit, and configured to detect a user's viewing direction,
wherein the optical unit is configured to be operated when a viewing direction detected from the detection unit comprises a direction toward a front of the user.

8. The display apparatus of claim 1 , further comprising an air gap between the optical units.

9. The display apparatus of claim 8 further comprising a transparent polymer layer in the air gap.

10. The display apparatus of claim 9 , wherein the display panel further comprises a flat display area, and
wherein the transparent polymer layer overlaps the flat display area of the display panel.

11. A display apparatus comprising:
a display panel comprising a curved display area; and
an optical unit comprising:
a liquid crystal layer on the curved display area, and configured to adjust a direction of light emitted from the display panel;
a first substrate facing the display panel;
an upper electrode under the first substrate;
a lower electrode facing the upper electrode with the liquid crystal layer therebetween at the curved display area, and comprising a size corresponding to the upper electrode;
a thin film transistor at the curved display area, and electrically connected to the lower electrode; and
an optical pattern on the lower electrode, and configured to guide the direction of the light emitted from the display panel.

12. The display apparatus of claim 11 , wherein the optical unit further comprises a second substrate on the display panel and facing the first substrate with the liquid crystal layer therebetween, and
wherein the lower electrode is on the second substrate.

13. The display apparatus of claim 12 , wherein the optical pattern comprises differently shaped prism parts.

14. The display apparatus of claim 13 , wherein each of the prism parts comprises a triangular shape when viewed in a cross-section.

15. The display apparatus of claim 14 , wherein the curved display area is at one side of the display panel,
wherein each of the prism parts comprises an optical surface inclined toward the one side of the display panel, and
wherein a size of an inclination angle between the optical surface and the second substrate increases with proximity of respective ones of the prism parts to the one side of the display panel.

16. The display apparatus of claim 13 , wherein each of the prism parts comprises a shape of a right-angled triangle when viewed in a cross-section.

Assignees

• Samsung Display Co Ltd

Inventors

• Bae Woomi
• Nam Hui
• Song Myoungseop
• Lee Myungho

Classifications

• H01L27/3232 Primary

  Electricity · mapped topic

• G02F1/1323

  Arrangements for providing a switchable viewing angle · CPC title

• H01L51/0097

  Electricity · mapped topic

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title

• H01L51/5275

  Electricity · mapped topic