DISPLAY DEVICE

• US 20200135814A1
• Filed: 10/25/2019
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: PARK, Jin Woo, KWAK, Won Kyu, KIM, Dong Wook, BANG, Hyun-Chol
• Granted Patent: US 11,296,154 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 2300/0842 forming a memory circuit, e.g. a dynamic memory with one capacitor
• CPC Class Codes: G09G 2310/0251 Precharge or discharge of pixel before applying new pixel voltage
• CPC Class Codes: G09G 2310/0262 The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
• CPC Class Codes: G09G 3/3233 with pixel circuitry controlling the current through the light-emitting element
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52
• CPC Class Codes: H01L 27/1248 with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• CPC Class Codes: H10K 59/121 characterised by the geometry or disposition of pixel elements
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/124 Insulating layers formed between TFT elements and OLED elements
• CPC Class Codes: H10K 59/126 Shielding, e.g. light-blocking means over the TFTs
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/65 OLEDs integrated with inorganic image sensors

Abstract

A display device includes a display panel including a first region and a second region, and a sensing module on a rear side of the display panel. The first region includes a first pixel area to display an image. The second region includes a second pixel area to display the image and a transmission area to transmit light output by the sensing module. The second region overlaps the sensing module. The second pixel area overlaps a first layer that blocks light output by the sensing module. The transmission area does not overlap the first layer.

Claims

1. A display device, comprising:

a display panel including a first region and a second region; and

a sensing module on a rear side of the display panel,

wherein the first region includes a first pixel area to display an image,

the second region includes a second pixel area to display the image and a transmission area to transmit light output by the sensing module,

the second region overlaps the sensing module,

the second pixel area overlaps a first layer that blocks output by the sensing module, and

the transmission area does not overlap the first layer.

2. The display device as claimed in claim 1, wherein:

the second pixel area includes a plurality of transistors, and

the first layer overlaps all of the plurality of transistors.

3. The display device as claimed in claim 1, wherein:

the second pixel area includes a plurality of transistors, and

the first layer overlaps some of the plurality of transistors.

4. The display device as claimed in claim 1, wherein the transmission area is separated from the first layer in a plan view.

5. The display device as claimed in claim 1, wherein the first pixel area is separated from the first layer in a plan view.

6. The display device as claimed in claim 1, wherein the first pixel area overlaps the first layer.

7. The display device as claimed in claim 6, wherein the first layer overlaps part of the first pixel area.

8. The display device as claimed in claim 6, wherein:

the first pixel area includes a plurality of transistors, and

the first layer overlaps some of the plurality of transistors.

9. The display device as claimed in claim 1, wherein:

the second pixel area includes a plurality of transistors, and

the first layer overlaps at least one of the plurality of transistors.

10. The display device as claimed in claim 9, wherein the first pixel area does not overlap the first layer.

11. The display device as claimed in claim 9, wherein:

the first pixel area includes the first layer overlapping some of a plurality of transistors, and

the second pixel area overlaps more of the first layer than the first pixel area.

12. The display device as claimed in claim 1, wherein an area occupied by the transmission area is 20% to 90% of the second region.

13. The display device as claimed in claim 1, wherein:

the display panel includes a first substrate on which a transistor is provided, and

the first layer is between the sensing module and the transistor.

14. A display device, comprising:

a display panel including a first region and a second region; and

a sensing module provided on a rear side of the display panel,

wherein the second region overlaps the sensing module,

the first region includes a first pixel area to display an image,

the second region includes a second pixel area to display the image and a transmission area to transmit light output by the sensing module, and

overlap percentages of first layers in first pixel area and in the second pixel area are different with respect to a same area, the first layers to block light output by the sensing module.

15. The display device as claimed in claim 14, wherein the transmission area does not overlap the first layer.

16. The display device as claimed in claim 14, wherein the transmission area does not include a transistor.

17. The display device as claimed in claim 14, wherein:

the first pixel area does not overlap the first layer, and

at least part of the second pixel area overlaps the first layer.

18. The display device as claimed in claim 17, wherein an entirety of the second pixel area overlaps the first layer.

19. The display device as claimed in claim 14, wherein:

part of the first pixel area overlaps the first layer, and

an entirety of the second pixel area overlaps the first layer.

20. The display device as claimed in claim 19, wherein the first layer overlapping the first pixel area receives a predetermined voltage.