Granted Patent B2

US 12,506,826 · App. 18/381,906 · Granted Dec 23, 2025

Inventors: Hyunjae Na (Yongin-si, KR); Sungguk An (Yongin-si, KR); Chul Ho Jeong (Yongin-si, KR)

Assignee: SAMSUNG DISPLAY CO., LTD.

H04M1/0266G06F3/04164G06F3/0443H04M1/0216G06F2203/04103H04M2250/22

Abstract

Claims (79)

1 . An electronic device, comprising:

a display panel including a base layer and a pixel,

wherein the base layer includes:

a bending region which is bendable about an imaginary bending axis extending in a first direction; and

a first non-bending region and a second-bending region which are spaced apart along a second direction intersecting the first direction with the bending region interposed therebetween, and

wherein the pixel is on an upper surface of the base layer to overlap the first non-bending region;

a digitizer in contact with a lower surface opposing the upper surface of the base layer;

a first driver chip connected to the pixel and on a portion of the upper surface of the base layer overlapping the second non-bending region; and

a second driver chip connected to the digitizer and on a portion of the upper surface of the base layer overlapping the second non-bending region and spaced apart from the first driver chip.

2 . The electronic device of claim 1 , wherein the base layer includes:

a first layer in contact with the digitizer and including an organic material; and

a second layer on the first layer and including an inorganic material.

3 . The electronic device of claim 2 , wherein the digitizer includes:

a lower layer;

first loop coils on the lower layer;

an upper layer on the lower layer and covering the first loop coils;

second loop coils on the upper layer;

connection lines connected to corresponding ones of the first loop coils and the second loop coils, respectively; and

sensing pads connected to corresponding ones of the connection lines, respectively,

wherein the sensing pads are connected to the second driver chip and exposed from the portion of the base layer overlapping the second non-bending region.

4 . The electronic device of claim 3 , wherein

the lower layer includes a first organic layer and a first inorganic layer on the first organic layer, wherein the first loop coils are on the first inorganic layer, and

the upper layer includes a second organic layer covering the first inorganic layer and a second inorganic layer on the second organic layer, wherein the second loop coils are on the second inorganic layer.

5 . The electronic device of claim 4 , wherein

the first organic layer and the second organic layer include a material the same as a material of the first layer, and

the first inorganic layer and the second inorganic layer include a material the same as a material of the second layer.

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

a panel protection layer including a base film including an organic material and a shield part including magnetic metal powder.

7 . The electronic device of claim 6 , wherein the shield part is on the base film.

8 . The electronic device of claim 6 , wherein the magnetic metal powder is within the base film.

9 . The electronic device of claim 6 ,

wherein the first non-bending region of the display panel includes:

a folding region which is foldable about an imaginary folding axis extending in the first direction; and

non-folding regions which are spaced apart along the second direction with the folding region interposed therebetween,

wherein the electronic device further comprises a lower plate below the panel protection layer,

wherein the lower plate includes non-folding parts which overlap corresponding non-folding regions and a folding part which overlaps the folding region,

wherein the folding part is disposed between the non-folding parts,

wherein a plurality of holes is defined through the folding part of the lower plate to extend from top to bottom surfaces of the lower plate.

10 . The electronic device of claim 9 , further comprising:

an adhesion layer disposed between the panel protection layer and the lower plate,

wherein a groove is defined in a portion of the adhesion layer overlapping the folding part, wherein the groove is formed by removal of at least a portion of the adhesion layer.

11 . The electronic device of claim 1 , wherein, in a state where the bending region is bent, the first driver chip and the second driver chip overlap the first non-bending region.

12 . The electronic device of claim 1 , wherein the digitizer detects an external input using an electromagnetic resonance method.

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

an input sensor on the display panel,

wherein the input sensor includes:

at least one sensing insulation layer; and

sensing electrodes which are insulated from each other,

wherein the input sensor detects an external input using a capacitive method.

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

an upper film on the display panel,

wherein the upper film includes a synthetic resin.

15 . The electronic device of claim 14 , further comprising:

a window on the upper film,

wherein the window includes a thin glass substrate, a window protection layer on the thin glass substrate, and a functional layer on the window protection layer,

wherein the functional layer includes at least one selected from a hard coating layer, an anti-fingerprint layer, and an antireflection layer.

16 . A method of fabricating an electronic device, the method comprising:

forming a lower layer on a work substrate;

forming first loop coils and connection lines on the lower layer, wherein the connection lines are connected to corresponding first loop coils;

forming an upper layer on the lower layer;

forming second loop coils on the upper layer, wherein the second loop coils are connected to corresponding connection lines through contact holes defined in the upper layer;

forming a base layer on the upper layer;

forming sensing pads on the base layer; and

forming pixels on a front surface of the base layer,

wherein the sensing pads are connected to corresponding connection lines through contact holes defined in the upper layer and the base layer,

wherein each of the lower layer, the upper layer, and the base layer includes:

a first layer is an organic layer including an organic material; and

a second layer is an inorganic layer including an inorganic material, wherein the second layer is disposed on the first layer, and

wherein the first layer of the base layer and the second layer of the upper layer are in contact with each other.

17 . The method of claim 16 , further comprising:

forming, on the base layer, a circuit layer including dielectric layers, transistors, and circuit lines connected to the transistors;

forming, on the circuit layer, a light-emitting element layer including light-emitting elements connected to the transistors; and

forming an encapsulation layer to cover the light-emitting element layer.

18 . The method of claim 17 , further comprising:

forming display pads on the base layer, wherein the display pads are exposed from at least one of the dielectric layers and connected to corresponding circuit lines.

19 . The method of claim 18 , further comprising:

connecting a first driver chip to the display pads; and

connecting a second driver chip to the sensing pads.

20 . The method of claim 16 , wherein the connection lines, the first loop coils, and the second loop coils are formed by one selected from a sputtering process, an electroless plating process, a trench process, and a transfer process.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (19)