Display apparatus

Patent metadata

Field	Value
Publication number	US-12219786-B2
Application number	US-202117523597-A
Country	US
Kind code	B2
Filing date	Nov 10, 2021
Priority date	Nov 12, 2020
Publication date	Feb 4, 2025
Grant date	Feb 4, 2025

Abstract

A display apparatus includes: a lower substrate including a display area and a transmission area; first to third pixel electrodes in the display area; an intermediate layer having an opening corresponding to the transmission area; an opposite electrode above the intermediate layer, and having an opening corresponding to the transmission area; an upper substrate including a first area corresponding to the first pixel electrode, a second area corresponding to the second pixel electrode, a third area corresponding to the third pixel electrode, and a fourth area corresponding to the transmission area; a light-transmissive layer in the first area; a second-color quantum dot layer in the second area; a third-color quantum dot layer in the third area; and a light-transmissive material layer be in the fourth area, and being integrally formed with the light-transmissive layer.

First claim

What is claimed is:

1. A display apparatus comprising:
a lower substrate comprising a display area and a transmission area;
first, second, and third pixel electrodes above the lower substrate in the display area;
an intermediate layer comprising emission layers stacked above each of the first, second, and third pixel electrodes, the intermediate layer having an opening corresponding to the transmission area;
an opposite electrode above the intermediate layer, the opposite electrode having an opening corresponding to the transmission area;
an upper substrate having a lower surface above the lower substrate and facing the lower substrate, the upper substrate comprising a first area corresponding to the first pixel electrode, a second area corresponding to the second pixel electrode, a third area corresponding to the third pixel electrode, and a fourth area corresponding to the transmission area;
a second-color quantum dot layer between the upper substrate and the opposite electrode in the second area;
a third-color quantum dot layer between the upper substrate and the opposite electrode in the third area;
a light-transmissive layer between the upper substrate and the opposite electrode in the first area and between the second-color quantum dot layer and the third-color quantum dot layer; and
a light-transmissive material layer between the upper substrate and the lower substrate in the fourth area, the light-transmissive material layer being integrally formed with the light-transmissive layer.

2. The display apparatus of claim 1 , wherein the light-transmissive material layer and the light-transmissive layer comprise a same material.

3. The display apparatus of claim 1 , wherein the emission layers comprise a first-color emission layer and a second-color emission layer.

4. The display apparatus of claim 3 , wherein the intermediate layer further comprises a charge generation layer between the emission layers.

5. The display apparatus of claim 3 , wherein, when viewed in a direction perpendicular to an upper surface of the lower substrate, an area of the first area is equal to an area of the second area.

6. The display apparatus of claim 1 , further comprising:
a first reflective layer between the upper substrate and the light-transmissive material layer in the transmission area.

7. The display apparatus of claim 1 , further comprising:
a first-color filter layer between the upper substrate and the light-transmissive layer in the first area, the first-color filter layer having a 1-2nd opening exposing the second area, a 1-3rd opening exposing the third area, and 1-4th opening exposing the fourth area;
a second-color filter layer between the upper substrate and the second-color quantum dot layer in the second area, the second-color filter layer comprising a portion that fills the 1-2nd opening and a portion on a lower surface of the first-color filter layer in a direction toward the lower substrate; and
a third-color filter layer between the upper substrate and the third-color quantum dot layer in the third area, the third-color filter layer filling the 1-3rd opening.

8. The display apparatus of claim 7 , further comprising:
a second reflective layer between the upper substrate and the first-color filter layer in the first area.

9. The display apparatus of claim 7 , further comprising:
a second reflective layer on a lower surface of the first-color filter layer in the direction toward the lower substrate, in the first area.

10. The display apparatus of claim 7 , further comprising:
a second reflective layer on a lower surface of the second-color filter layer in the direction toward the lower substrate, between the first area and the second area.

11. The display apparatus of claim 1 , further comprising:
a first protective layer covering an upper surface of the light-transmissive layer in a direction toward the upper substrate; and
a sensor electrode surrounding at least a portion of the first area, the sensor electrode being on an upper surface of the first protective layer in the direction toward the upper substrate.

12. The display apparatus of claim 1 , further comprising:
a first protective layer covering an upper surface of the light-transmissive layer in a direction toward the upper substrate; and
a sensor electrode surrounding at least a portion of the first area, the sensor electrode being on a lower surface of the first protective layer in a direction toward the lower substrate.

13. The display apparatus of claim 1 , further comprising:
a first protective layer covering an upper surface of the light-transmissive layer in a direction toward the upper substrate;
a first sensor electrode surrounding at least a portion of the first area, the first sensor electrode being on an upper surface of the first protective layer in the direction toward the upper substrate; and
a second sensor electrode overlapping the first sensor electrode, the second sensor electrode being on a lower surface of the first protective layer in a direction toward the lower substrate.

14. The display apparatus of claim 1 , wherein the light-transmissive layer is spaced apart from the second-color quantum dot layer and the third-color quantum dot layer in plan view.

15. The display apparatus of claim 1 , wherein there is a one-to-one correspondence between the fourth area and each of the first area, the second area, and the third area.

16. The display apparatus of claim 1 , wherein the transmission area is transparent to visible light, and
images behind the display apparatus are visible through the display apparatus while the display apparatus displays an image.

Assignees

• Samsung Display Co Ltd

Inventors

• BOK Seunglyong
• Sung Byounghun

Classifications

• H10K39/34

  integrated with organic light-emitting diodes [OLED] · CPC title

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/878

  comprising reflective means · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/80521

  characterised by their shape · CPC title