Display apparatus comprising reflection structure

• US 10,269,777 B2
• Filed: 05/03/2017
• Issued: 04/23/2019
• Est. Priority Date: 05/20/2016
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Lee, Kuan-Feng, Hu, Shun-Yuan, Hsieh, Tsau-Hua
• Primary Examiner(s): Lin, Chun-Nan
• Application Number:
  US15/585,175
• Publication Number:
  US 20170336690A1
• Time in Patent Office: 720 Days
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other

Abstract

A display apparatus includes a first substrate, a light emitting device and a first reflection structure. The light emitting device is disposed on the first substrate, wherein a height of the light emitting device is equal to or greater than 1 μm, and less than or equal to 20 μm. The first reflection structure is disposed corresponding to the light emitting device, wherein a light emitted by the light emitting device is reflected by the first reflection structure, and then emitted from the first substrate.

Claims

1. A display apparatus, comprising:

a first substrate;

a light emitting device, disposed on the first substrate, wherein a height of the light emitting device is greater than or equal to 1 μ

m and less than or equal to 20 μ

m;

a first reflection structure, disposed corresponding to the light emitting device; and

a first insulating layer, located between the first substrate and the first reflection structure, wherein the first insulating layer has an opening, the light emitting device is disposed at the opening,

wherein at least a portion of a light emitted by the light emitting device is reflected by the first reflection structure, and then emitted through the first substrate, and

wherein an angle between a side wall of the opening and the first substrate is greater than or equal to 60° and

less than or equal to 150°

.

2. The display apparatus as claimed in claim 1, further comprising a driving device disposed on the first substrate, wherein the light emitting device is staggered with the driving device.

3. The display apparatus as claimed in claim 1, wherein the light emitting device is a flip-chip light emitting diode or a vertical light emitting diode.

4. The display apparatus as claimed in claim 1, further comprising a wavelength conversion layer disposed on one side of the first substrate, wherein an orthogonal projection of the wavelength conversion layer on the first substrate at least partially overlaps with an orthogonal projection of the light emitting device on the first substrate.

5. The display apparatus as claimed in claim 4, wherein the wavelength conversion layer is a phosphor powder layer, a fluorescent powder layer, a quantum dot layer, or a combination thereof.

6. The display apparatus as claimed in claim 5, wherein the first substrate has a recess, and the wavelength conversion layer is located in the recess.

7. The display apparatus as claimed in claim 1, further comprising a color filter layer disposed on one side of the first substrate, wherein an orthogonal projection of the color filter layer on the first substrate at least partially overlaps with an orthogonal projection of the light emitting device on the first substrate.

8. The display apparatus as claimed in claim 1, further comprising a second insulating layer covering the light emitting device and the first insulating layer.

9. A display apparatus, comprising:

a first substrate;

a second substrate,

a light emitting device, disposed between the first substrate and the second substrate, wherein a height of the light emitting device is greater than or equal to 1 μ

m and less than or equal to 20 μ

m,

a light shielding layer, disposed on one side of the second substrate, wherein an orthogonal projection of the light shielding layer on the first substrate overlaps with an orthogonal projection of the light emitting device on the first substrate; and

a first reflection structure, disposed between the light shielding layer and the light emitting device,

wherein at least a portion of a light emitted by the light emitting device is reflected by the first reflection structure, and then emitted through the first substrate.

10. The display apparatus as claimed in claim 9, wherein quantity of the light emitting device is plural, a part of the light emitting devices emit light toward the first substrate, and the other part of the light emitting devices emit light toward the second substrate.

11. The display apparatus as claimed in claim 9, further comprising a wavelength conversion layer disposed at the first substrate or at the second substrate, or covers a light emitting surface of the light emitting device, wherein an orthogonal projection of the wavelength conversion layer on the first substrate at least partially overlaps with an orthogonal projection of the light emitting device on the first substrate.

12. The display apparatus as claimed in claim 9, further comprising a color filter layer disposed at the first substrate or the second substrate, wherein an orthogonal projection of the color filter layer on the first substrate at least partially overlaps with an orthogonal projection of the light emitting device on the first substrate.

13. The display apparatus as claimed in claim 9, wherein the first reflection structure covers the light emitting device while exposing a light emitting surface of the light emitting device, and the light emitting surface of the light emitting device faces the first substrate.

14. The display apparatus as claimed in claim 9, further comprising a second reflection structure, covering the light emitting device while exposing a light emitting surface of the light emitting device, wherein the light emitting surface of the light emitting device faces the second substrate.

15. The display apparatus as claimed in claim 9, further comprising an additional light shielding layer disposed on one side of the first substrate, wherein an orthogonal projection of the additional light shielding layer on the first substrate overlaps with an orthogonal projection of the light emitting device on the first substrate.