# US 11,906,860 B2 · Electronic device

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- Number: US 11,906,860 B2
- Document ID: US11906860B2
- Status: Granted
- Kind: B2
- Application number: 18/186,951
- Filed: 2023-03-21
- Published: 2023-10-26
- Granted: 2024-02-20
- Earliest claimed: 2022-04-20
- Assignees: Innolux Corporation
- Applicants: Innolux Corporation
- Inventors: Wei-Yen Chiu; Ming-Jou Tai; You-Cheng Lu; Yi-Shiuan Cherng; Yi-Hsiu Wu; Chia-Hao Tsai; Yung-Hsun Wu
- Web page: https://patentgrep.com/patent/US11906860B2

## CPC

- G02F 1/133707: {Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes}
- G02F 1/136209: {Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element}
- G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)}
- G02F 1/134309: {characterised by their geometrical arrangement}
- G02F 1/136227: {Through-hole connection of the pixel electrode to the active element through an insulation layer}
- G02F 1/136286: {Wiring, e.g. gate line, drain line}
- G02F 1/134372: {for fringe field switching [FFS] where the common electrode is not patterned}
- G02F 1/13685: {Top gates}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

An electronic device includes a substrate, a driving element, a first transparent conductive layer, an insulating layer, and a second transparent conductive layer. The driving element is disposed on the substrate and includes a drain electrode having a first edge. The first transparent conductive layer is disposed on the driving element. The insulating layer is disposed between the driving element and the first transparent conductive layer and includes a hole through which the first transparent conductive layer is electrically connected to the driving element. The second transparent conductive layer is disposed on the insulating layer. One of the first and second transparent conductive layers includes at least one slit, and the first or second transparent conductive layer that includes the at least one slit has a second edge. The second edge is located in the hole, and the at least one slit exposes the first edge of the drain electrode.

## Claims

### Claim 1

An electronic device, comprising:
a substrate;
a driving element, disposed on the substrate and comprising a drain electrode, the drain electrode having a first edge;
a first transparent conductive layer, disposed on the driving element;
an insulating layer, disposed between the driving element and the first transparent conductive layer and comprising a hole, wherein the first transparent conductive layer is electrically connected to the driving element through the hole; and
a second transparent conductive layer, disposed on the insulating layer,
wherein one of the first transparent conductive layer and the second transparent conductive layer comprises at least one slit, the first transparent conductive layer or the second transparent conductive layer comprising the at least one slit has a second edge, the second edge is located in the hole, and the at least one slit exposes the first edge of the drain electrode,
wherein the first transparent conductive layer is located between the second transparent conductive layer and the insulating layer, and the second transparent conductive layer comprises the at least one slit.

### Claim 2 (depends on 1)

The electronic device according to claim 1, wherein the substrate has a normal direction, and the second edge overlaps the hole in the normal direction.

### Claim 3 (depends on 1)

The electronic device according to claim 1, wherein the substrate has a normal direction, one portion of the second transparent conductive layer is disposed at a bottom of the hole, and the other portion of the second transparent conductive layer is disposed on the insulating layer, wherein a minimum distance from the one portion of the second transparent conductive layer to the other portion of the second transparent conductive layer in the normal direction ranges from 0.5 μm to 2.5 μm.

### Claim 4 (depends on 1)

The electronic device according to claim 1, wherein the hole has a sidewall, and an included angle between the sidewall and an upper surface of the substrate ranges from 40 degrees to 85 degrees.

### Claim 5 (depends on 4)

The electronic device according to claim 4, wherein the included angle ranges from 50 degrees to 85 degrees.

### Claim 6 (depends on 1)

The electronic device according to claim 1, wherein the at least one slit comprises an end portion far from the drain electrode, and the end portion comprises a protrusion.

### Claim 7 (depends on 6)

The electronic device according to claim 6, wherein the at least one slit further comprises a trunk portion connected to the end portion, and an included angle between an extension direction of the trunk portion and a direction in which the protrusion faces away from the trunk portion ranges from 10 degrees to 80 degrees.

### Claim 8 (depends on 7)

The electronic device according to claim 7, further comprising:
a data line, disposed on the substrate and electrically connected to the driving element, wherein the included angle between the extension direction of the trunk portion and an extension direction of the data line is greater than 0 degrees and less than 90 degrees.

### Claim 9 (depends on 1)

The electronic device according to claim 1, wherein a distance from the second edge to an edge of the bottom of the hole is greater than 0 μm and less than 3 μm.

### Claim 10 (depends on 1)

The electronic device according to claim 1, wherein the substrate has a normal direction in which a distance from the second edge and a bottom of the hole ranges from 0% to 80% of the thickness of the insulating layer.

### Claim 11 (depends on 1)

The electronic device according to claim 1, further comprising:
a light shielding pattern, disposed on the substrate and overlapping a channel region of the driving element.

### Claim 12 (depends on 1)

The electronic device according to claim 1, further comprising:
another substrate, disposed opposite to the substrate; and
a light shielding layer, disposed on a surface of the another substrate facing the substrate, the light shielding layer having an aperture, the at least one slit at least partially overlapping the aperture.

### Claim 13 (depends on 1)

The electronic device according to claim 1, wherein the insulating layer further comprises another hole, a depth of the another hole is less than a depth of the hole, the first transparent conductive layer and the second transparent conductive layer are stacked on the insulating layer and electrically insulated from each other, and each of the first transparent conductive layer and the second transparent conductive layer extends into the hole and the another hole.

### Claim 14 (depends on 1)

The electronic device according to claim 1, further comprising:
a bump, disposed on the insulating layer and covering a sidewall of the insulating layer, wherein in a top view of the electronic device the bump is disposed corresponding to an upper right corner or a lower left corner of the at least one slit.

### Claim 15 (depends on 14)

The electronic device according to claim 14, wherein a material of the bump comprises an organic material, an inorganic material, or a combination thereof.

### Claim 16

An electronic device, comprising:
a substrate;
a driving element, disposed on the substrate and comprising a drain electrode, the drain electrode having a first edge;
a first transparent conductive layer, disposed on the driving element;
an insulating layer, disposed between the driving element and the first transparent conductive layer and comprising a hole, wherein the first transparent conductive layer is electrically connected to the driving element through the hole; and
a second transparent conductive layer, disposed on the insulating layer,
wherein one of the first transparent conductive layer and the second transparent conductive layer comprises at least one slit, the first transparent conductive layer or the second transparent conductive layer comprising the at least one slit has a second edge, the second edge is located in the hole, and the at least one slit exposes the first edge of the drain electrode, wherein the drain electrode comprises a first portion and a second portion, the first portion is located between the second portion and the substrate, the second portion is electrically connected to the first portion, the hole partially exposes the second portion, and the first transparent conductive layer is electrically connected to the second portion of the drain electrode through the hole.

### Claim 17 (depends on 16)

The electronic device according to claim 16, wherein the first edge of the drain electrode comprises an edge of the first portion and an edge of the second portion, and the at least one slit exposes the edge of the first portion and the edge of the second portion.

### Claim 18 (depends on 16)

The electronic device according to claim 16, wherein the first transparent conductive layer is located between the second transparent conductive layer and the insulating layer, and the second transparent conductive layer comprises the at least one slit.

### Claim 19 (depends on 16)

The electronic device according to claim 16, wherein the second transparent conductive layer is located between the first transparent conductive layer and the insulating layer, and the first transparent conductive layer comprises the at least one slit.

### Claim 20 (depends on 16)

The electronic device according to claim 16, wherein the hole has a sidewall, and an included angle between the sidewall and an upper surface of the substrate ranges from 40 degrees to 85 degrees.
