Conductive layer structures for substrates

• US 10,672,755 B2
• Filed: 04/10/2019
• Issued: 06/02/2020
• Est. Priority Date: 01/25/2017
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Wu, Yuan-Lin
• Primary Examiner(s): Erdem, Fazli
• Application Number:
  US16/379,811
• Publication Number:
  US 20190237455A1
• Time in Patent Office: 419 Days
• CPC Class Codes: C09K 2323/00 Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
• CPC Class Codes: C09K 2323/03 Viewing layer characterised by chemical composition
• CPC Class Codes: G02F 1/13306 Circuit arrangements or driving methods for the control of single liquid crystal cells G02F1/132, G02F1/133382 take precedence
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/1343 Electrodes reflective electrodes G02F1/133553
• CPC Class Codes: G02F 1/1347 Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
• CPC Class Codes: G02F 1/1533 structural features not otherwise provided for
• CPC Class Codes: G09F 9/301 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
• CPC Class Codes: H01L 27/016 Thin-film circuits
• CPC Class Codes: H01L 27/0218 of field effect structures
• CPC Class Codes: H01L 27/1251 comprising TFTs having a different architecture, e.g. top- and bottom gate TFTs
• CPC Class Codes: H01L 29/0653 adjoining the input or output region of a field-effect device, e.g. the source or drain region
• CPC Class Codes: H01L 29/41733 for thin film transistors with insulated gate
• CPC Class Codes: H01L 29/786 Thin film transistors, i.e. transistors with a channel being at least partly a thin film transistors having only the source or the drain region on an insulator layer H01L29/0653; thin film FinFETs H01L29/785
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• 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 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 : Organic PV cells

Abstract

An example substrate includes a surface, a plurality of thin film layers disposed on the surface, and a conductive layer disposed on the surface. The conductive layer includes a bending structure. The bending structure includes a wavy edge and includes a plurality of openings, where a shape of at least one opening of the plurality of openings has a contour having a first curved portion, and a curvature of a portion of the wavy edge is different from a curvature of the first curved portion.

Claims

1. A display device, comprising:

a substrate including a surface;

a thin film transistor disposed on the surface;

a light emitting diode element disposed on the surface and electrically connected to the thin film transistor; and

a conductive layer disposed on the surface, the conductive layer including a bending structure, the bending structure comprising an undulating edge and including a plurality of openings where a shape of at least one opening of the plurality of openings has a contour having a first curved portion,

wherein a curvature of a portion of the undulating edge is different from a curvature of the first curved portion.

2. The display device of claim 1, wherein the at least one opening has an area between 5 μ

m² and 500 μ

m².

3. The display device of claim 1, wherein the at least one opening further includes a second curved portion, where a curvature of the first curved portion is different than a curvature of the second curved portion.

4. The display device of claim 1, wherein the conductive layer further includes:

a conductive line extending along a first direction, the conductive line including a wiring portion, a connecting portion, and the bending structure, the connecting portion disposed between the bending structure and the wiring portion, the connecting portion having a first width along a second direction substantially perpendicular to the first direction, the wiring portion having a second width along the second direction, and the first width being greater than the second width.

5. The display device of claim 4, wherein the thin film transistor includes a source contact and a drain contact, where a material of the conductive line, and a material of at least one of the source contact and the drain contact are the same.

6. The display device of claim 4, wherein the thin film transistor includes a gate electrode, where a material of the conductive line and a material of the gate electrode are the same.

7. The display device of claim 1, wherein the conductive layer includes a first layer and a second layer disposed on the first layer, a material of the first layer being different than a material of the second layer.

8. The display device of claim 1, wherein the conductive layer includes a first layer and a second layer disposed on the first layer, a thickness of the first layer is different than a thickness of the second layer.

9. The display device of claim 1, wherein the conductive layer includes a touch signal line, the touch signal line including the bending structure.

10. The display device of claim 1, wherein the conductive layer includes a touch electrode, the touch electrode including the bending structure.

11. A substrate, comprising:

a surface;

a plurality of thin film transistors disposed on the surface; and

a conductive layer disposed on the surface, the conductive layer including a bending structure, the bending structure comprising an undulating edge and including a plurality of openings, where a shape of at least one opening of the plurality of openings has a contour having a first curved portion,

wherein a curvature of a portion of the undulating edge is different from a curvature of the first curved portion.

12. The substrate of claim 11, wherein the at least one opening has an area between 5 μ

m² and 500 μ

m².

13. The substrate of claim 11, wherein the at least one opening further includes a second curved portion, where a curvature of the first curved portion is different than a curvature of the second curved portion.

14. The substrate of claim 11, wherein the conductive layer further includes:

a conductive line extending along a first direction, the conductive line including a wiring portion, a connecting portion, and the bending structure, the connecting portion disposed between the bending structure and the wiring portion, the connecting portion having a first width along a second direction substantially perpendicular to the first direction, the wiring portion having a second width along the second direction, and the first width being greater than the second width.

15. The substrate of claim 14, wherein the plurality of thin film transistors includes a first patterned metal layer, where a material of the conductive line and a material of the first patterned metal layer are the same.

16. The substrate of claim 11, wherein the conductive layer includes a first layer and a second layer disposed on the first layer, a material of the first layer being different than a material of the second layer.

17. The substrate of claim 11, wherein the conductive layer includes a first layer and a second layer disposed on the first layer, a thickness of the first layer is different than a thickness of the second layer.

18. The substrate of claim 11, wherein the conductive layer includes an electrode, the electrode including the bending structure.