Granted Patent B2

US 12,748,515 · App. 19/030,423 · Granted Sep 29, 2026

Inventor: Seung-Lyong Bok (Yongin-si, KR)

Assignee: Samsung Display Co., Ltd.

G06F3/0446G06F3/04162G06F2203/04106

Abstract

Claims (73)

1 . An electronic device comprising:

a display layer having a display area, and a non-display area adjacent to the display area, the display layer comprising:

a base layer;

a circuit layer on the base layer, and comprising:

a pixel driving circuit; and

a plurality of first auxiliary electrodes electrically connected with one another, the plurality of first auxiliary electrodes located along one of a first direction or a second direction crossing the first direction, and extending in another one of the first direction or the second direction;

a light emitting element layer on the circuit layer, and comprising a light emitting element electrically connected with the pixel driving circuit; and

an encapsulation layer on the light emitting element layer; and

a sensor layer on the display layer, and comprising:

a plurality of first electrodes located along the first direction, and extending in the second direction; and

a plurality of second electrodes located along the second direction, and extending in the first direction,

wherein the plurality of first auxiliary electrodes are located between the base layer and the light emitting element layer.

2 . The electronic device of claim 1 , wherein the circuit layer further comprises a plurality of dummy pixel circuits at the same layer as that of the pixel driving circuit, and

wherein the plurality of dummy pixel circuits overlaps with the plurality of first auxiliary electrodes in a plan view.

3 . The electronic device of claim 1 , wherein the pixel driving circuit does not overlap with the plurality of first auxiliary electrodes in a plan view.

4 . The electronic device of claim 1 , wherein the circuit layer further comprises a connecting line in the non-display area, and connected with the plurality of first auxiliary electrodes.

5 . The electronic device of claim 1 , wherein the circuit layer further comprises a data line configured to receive a data signal, and electrically connected with the pixel driving circuit, and

wherein the plurality of first auxiliary electrodes are at the same layer as that of the data line.

6 . The electronic device of claim 5 , wherein the circuit layer further comprises a first power line configured to provide a first driving voltage to the pixel driving circuit, the first power line being located at the same layer as that of the data line.

7 . The electronic device of claim 1 , wherein the circuit layer further comprises a plurality of second auxiliary electrodes located along the second direction, and extending in the first direction, and

wherein the plurality of first auxiliary electrodes are insulated from the plurality of second auxiliary electrodes, and cross the plurality of second auxiliary electrodes.

8 . The electronic device of claim 1 , further comprising:

a sensor driver configured to drive the sensor layer,

wherein the sensor driver is configured to provide a charging signal having a sinusoidal wave to the plurality of first auxiliary electrodes.

9 . The electronic device of claim 1 , wherein the pixel driving circuit comprises a driving transistor comprising a gate electrode, and

wherein the plurality of first auxiliary electrodes are at the same layer as that of the gate electrode.

10 . The electronic device of claim 9 , wherein the plurality of first auxiliary electrodes overlap with the pixel driving circuit in a plan view.

11 . The electronic device of claim 1 , wherein the pixel driving circuit comprises a driving transistor comprising:

a gate electrode; and

an upper electrode over the gate electrode.

12 . The electronic device of claim 11 , wherein the plurality of first auxiliary electrodes are at the same layer as that of the upper electrode.

13 . The electronic device of claim 11 , wherein each of the plurality of first auxiliary electrodes comprises a first portion, and a second portion over the first portion and connected with the first portion through a contact,

wherein the first portion is at the same layer as that of the gate electrode, and

wherein the second portion is at the same layer as that of the upper electrode.

14 . The electronic device of claim 11 , wherein the circuit layer further comprises a lower metal layer under the gate electrode.

15 . The electronic device of claim 1 , wherein the sensor layer further comprises:

a plurality of second auxiliary electrodes along the first direction, and extending in the second direction; and

a plurality of third auxiliary electrodes along the second direction, and extending in the first direction.

16 . The electronic device of claim 15 , wherein the plurality of first electrodes are at a different layer from that of the plurality of second auxiliary electrodes.

17 . An electronic device comprising:

a display layer comprising:

a base layer;

a circuit layer on the base layer, and comprising:

a pixel driving circuit; and

a plurality of first auxiliary electrodes along one of a first direction or a second direction crossing the first direction, and extending in another one of the first direction or the second direction, the plurality of first auxiliary electrodes being electrically connected with one another;

a light emitting element layer on the circuit layer, and comprising a light emitting element electrically connected with the pixel driving circuit; and

an encapsulation layer on the light emitting element layer;

a sensor layer on the display layer, the sensor layer comprising a plurality of sensing electrodes; and

a sensor driver configured to drive the sensor layer, and provide a charging signal having a period to the plurality of first auxiliary electrodes,

wherein the plurality of first auxiliary electrodes are located between the base layer and the light emitting element layer.

18 . The electronic device of claim 17 , wherein the circuit layer further comprises a plurality of dummy pixel circuits at the same layer as that of the pixel driving circuit, and

wherein the plurality of dummy pixel circuits overlap with the plurality of first auxiliary electrodes in a plan view.

19 . The electronic device of claim 17 , wherein the circuit layer further comprises a data line configured to receive a data signal, and electrically connected with the pixel driving circuit, and

wherein the plurality of first auxiliary electrodes are at the same layer as that of the data line.

20 . The electronic device of claim 17 , wherein the pixel driving circuit comprises a driving transistor comprising a gate electrode, and

wherein the plurality of first auxiliary electrodes are at the same layer as that of the gate electrode.

21 . A multimedia electronic device comprising:

a pen;

a display layer having a display area, and a non-display area adjacent to the display area, the display layer comprising:

a base layer;

a circuit layer on the base layer, and comprising:

a pixel driving circuit; and

a plurality of first auxiliary electrodes electrically connected with one another, the plurality of first auxiliary electrodes located along one of a first direction or a second direction crossing the first direction, and extending in another one of the first direction or the second direction;

a light emitting element layer on the circuit layer, and comprising a light emitting element electrically connected with the pixel driving circuit; and

an encapsulation layer on the light emitting element layer; and

a sensor layer on the display layer, and configured to detect an input by the pen, the sensor layer comprising:

a plurality of first electrodes located along the first direction, and extending in the second direction; and

a plurality of second electrodes located along the second direction, and extending in the first direction,

wherein the multimedia electronic device is one of a mobile phone, a foldable mobile phone, a notebook computer, a television, a tablet computer, a car navigation device, a game machine, or a wearable device, and

wherein the plurality of first auxiliary electrodes are located between the base layer and the light emitting element layer.

22 . The multimedia electronic device of claim 21 , wherein the circuit layer further comprises a plurality of dummy pixel circuits at the same layer as that of the pixel driving circuit, and

wherein the plurality of dummy pixel circuits overlaps with the plurality of first auxiliary electrodes in a plan view.

23 . The multimedia electronic device of claim 21 , wherein the pixel driving circuit does not overlap with the plurality of first auxiliary electrodes in a plan view.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (26)