Display apparatus including auxiliary pixels

Patent metadata

Field	Value
Publication number	US-11404512-B2
Application number	US-201916719522-A
Country	US
Kind code	B2
Filing date	Dec 18, 2019
Priority date	Feb 7, 2019
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

A display apparatus includes a substrate that includes a sensor area, a first non-display area at least partially surrounding the sensor area, and a display area at least partially surrounding the first non-display area. A plurality of auxiliary pixels is disposed in the sensor area. The plurality of auxiliary pixels is configured for passive matrix driving. A plurality of main pixels is disposed in the main display area and is configured for active matrix driving.

First claim

What is claimed is:

1. A display apparatus, comprising:
a substrate comprising a sensor area, a first non-display area at least partially surrounding the sensor area, and a main display area at least partially surrounding the first non-display area;
a plurality of auxiliary pixels disposed in the sensor area and configured for passive matrix driving;
a plurality of main pixels disposed in the main display area and configured for active matrix driving; and
a plurality of auxiliary thin film transistors disposed in the first non-display area and configured to drive the plurality of auxiliary pixels,
wherein an entirety of the sensor area is configured to transmit light or sound through the substrate and display an auxiliary image on the substrate using the plurality of auxiliary pixels by passive matrix driving.

2. The display apparatus of claim 1 , further comprising a component arranged on a lower surface of the substrate such that the component corresponds to the sensor area.

3. The display apparatus of claim 1 , wherein each of the plurality of auxiliary pixels is located in a region where a plurality of horizontal electrodes extending primarily in a first direction and a plurality of vertical electrodes extending primarily in a second direction crossing the first direction intersect each other.

4. The display apparatus of claim 1 , wherein each of the plurality of main pixels comprises at least one thin-film transistor.

5. A display apparatus, comprising:
a substrate comprising a sensor area, a first non-display area at least partially surrounding the sensor area, and a main display area at least partially surrounding the first non-display area;
a plurality of auxiliary pixels disposed in the sensor area and configured for passive matrix driving;
a plurality of main pixels disposed in the main display area and configured for active matrix driving; and
a plurality of auxiliary thin film transistors disposed in the first non-display area and configured to drive the plurality of auxiliary pixels,
wherein each of the plurality of auxiliary pixels comprises a horizontal electrode, a vertical electrode, and an intermediate layer arranged between the horizontal electrode and the vertical electrode, and
wherein each of the plurality of auxiliary thin film transistors comprises a first auxiliary thin film transistor connected to the horizontal electrode and a second auxiliary thin film transistor connected to the vertical electrode.

6. The display apparatus of claim 5 , wherein each of the plurality of main pixels comprises a pixel electrode, an intermediate layer, and a counter electrode, and wherein either a source electrode or a drain electrode of the first auxiliary thin film transistor is connected to the counter electrode.

7. The display apparatus of claim 6 , wherein a gate electrode of the second auxiliary thin film transistor is connected to a scan line configured for transmitting a scar signal to the plurality of main pixels.

8. The display apparatus of claim 5 , wherein either a source electrode or a drain electrode of the second auxiliary thin film transistor is connected to a driving voltage line located in the main display area.

9. The display apparatus of claim 1 , further comprising a lower protective film disposed cm a lower surface of the substrate, wherein the lower protective film comprises an opening corresponding to the sensor area.

10. The display apparatus of claim 1 , further comprising a plural of lines extending from the main display area, arranged in the first non-display area, and detouring along an edge of the sensor area.

11. The display apparatus of claim 10 , wherein each of the plurality of lines comprises a curved portion in the first non-display area.

12. The display apparatus of claim 1 , wherein a size of a light-emitting area of each of the plurality of auxiliary pixels is greater than a size of a light-emitting area of each of the plurality of main pixels.

13. The display apparatus of claim 1 , wherein a resolution implemented in the sensor area is within a range of about 50 ppi to about 400 ppi.

14. A display apparatus, comprising:
a substrate comprising an auxiliary pixel area, a first non-display area at least partially surrounding the auxiliary pixel area, and a main display area at least partially surrounding the first non-display area;
a plurality of auxiliary pixels disposed in the auxiliary pixel area and configured for passive matrix driving;
a plurality of main pixels disposed in the main display area and configured tor active matrix driving; and
a component disposed under the substrate to correspond to the auxiliary pixel area,
wherein each of the plurality of auxiliary pixels is located in a region where a plurality of horizontal electrodes extending primarily in a first direction and a plurality of vertical electrodes extending primarily in a second direction crossing the first direction intersect each other.

15. The display apparatus of claim 14 , wherein the component is an infrared sensor.

16. The display apparatus of claim 14 , wherein the auxiliary pixel area has a infrared transmittance of about 15% or more.

17. The display apparatus of claim 14 , wherein a plurality of auxiliary thin film transistors configured for driving the plurality of auxiliary pixels is arranged in the first non-display area.

18. The display apparatus of claim 14 , further comprising a plurality of lines extending from the main display area, arranged in the first non-display area, and detouring along an edge of the auxiliary pixel area.

19. The display apparatus of claim 14 , further comprising a lower protective film disposed on a lower surface of the substrate, wherein the lower protective film comprises an opening corresponding to the auxiliary pixel area.

20. The display apparatus of claim 1 , wherein the main display area is separated from the sensor area by the first non-display area.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Changmok
• Han Dongwon

Classifications

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• H10K59/17 Primary

  Passive-matrix OLED displays · CPC title

• H10D86/411

  characterised by materials, geometry or structure of the substrates · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title