Touch display device with mesh units and anti-static electricity connecting parts

• US 10,535,681 B2
• Filed: 06/27/2019
• Issued: 01/14/2020
• Est. Priority Date: 12/02/2016
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Lin, Hsiao-Lang, Yueh, Jui-Jen
• Primary Examiner(s): Blancha, Jonathan M
• Application Number:
  US16/454,065
• Publication Number:
  US 20190319051A1
• Time in Patent Office: 201 Days
• Field of Search: 345174
• CPC Class Codes: G02F 1/133345 Insulating layers G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133388 with constructional differences between the display region and the peripheral region
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G02F 1/13685 Top gates
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: H01L 27/1222 with a particular composition, shape or crystalline structure of the active layer
• CPC Class Codes: H01L 27/1225 with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
• 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: H01L 27/1251 comprising TFTs having a different architecture, e.g. top- and bottom gate TFTs
• CPC Class Codes: H01L 27/1255 integrated with passive devices, e.g. auxiliary capacitors
• CPC Class Codes: H01L 29/24 including, apart from doping materials or other impurities, only semiconductor materials not provided for in groups H01L29/16, H01L29/18, H01L29/20, H01L29/22 including organic materials H10K99/00
• CPC Class Codes: H01L 29/42356 Disposition, e.g. buried gate electrode H01L29/42324 and H01L29/4234 take precedence
• CPC Class Codes: H01L 29/4908 for thin film semiconductor, e.g. gate of TFT
• CPC Class Codes: H01L 29/78648 arranged on opposing sides of the channel
• CPC Class Codes: H01L 29/78672 Polycrystalline or microcrystalline silicon transistor
• CPC Class Codes: H01L 29/78675 with normal-type structure, e.g. with top gate
• CPC Class Codes: H01L 29/7869 having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
• CPC Class Codes: H01L 29/78696 : characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel H01L29/78612 takes precedence; transistors having a drain offset region or a lightly doped drain [LDD] H01L29/78621
• CPC Class Codes: H10K 59/1213 : the pixel elements being TFTs
• CPC Class Codes: H10K 59/131 : Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/40 : OLEDs integrated with touch screens

Abstract

A touch display device includes a substrate, light emitting units, and a touch layer. The touch layer includes mesh units disposed corresponding to the light emitting units, wherein each of the mesh units has a mesh opening, and the light emitting units are disposed in the mesh openings. The mesh units include a first mesh unit and a second mesh unit. The light emitting units include a first light emitting unit and a second light emitting unit having different color from the first light emitting unit. The first light emitting unit is disposed in the first mesh unit. The second light emitting unit is disposed in the second mesh unit. An area of the first mesh unit is greater than an area of the second mesh unit, and an area of the first light emitting unit is greater than an area of the second light emitting unit.

Claims

1. A touch display device, comprising:

a substrate having a display region;

a plurality of light emitting units disposed in the display region, wherein the plurality of light emitting units are formed on the substrate;

an insulating layer disposed on the plurality of light emitting units; and

a touch layer disposed on the insulating layer, the touch layer comprising;

a plurality of mesh units disposed corresponding to the plurality of light emitting units, wherein each of the plurality of mesh units has a mesh opening, and the plurality of light emitting units are disposed in the plurality of mesh openings,

wherein the plurality of mesh units comprise a first mesh unit and a second mesh unit, the plurality of light emitting units comprise a first light emitting unit and a second light emitting unit, the first light emitting unit emits a light with a color different from a color of a light emitted by the second light emitting unit, the first light emitting unit is disposed in the first mesh unit, and the second light emitting unit is disposed in the second mesh unit,

wherein an area of the first mesh unit is greater than an area of the second mesh unit, and an area of the first light emitting unit is greater than an area of the second light emitting unit.

2. The touch display device of claim 1, wherein the first light emitting unit emits a red light, and the second light emitting unit emits a green light or a blue light.

3. The touch display device of claim 1, wherein the first light emitting unit emits a blue light, and the second light emitting unit emits a green light.

4. The touch display device of claim 1, further comprising a first shielding pattern disposed between the substrate and the touch layer, wherein the touch layer further comprises a first connecting wire electrically connected to a first portion of the plurality of mesh units, a portion of the first connecting wire is overlapped with the first shielding pattern in a direction perpendicular to a surface of the substrate, and the first connecting wire is electrically isolated from the first shielding pattern.

5. The touch display device of claim 4, wherein a maximum width of the first connecting wire in a direction is defined as width W7, a maximum width of the first shielding pattern in the direction is defined as width W8, and the width W7 is different from the width W8.

6. The touch display device of claim 5, wherein the width W7 and the width W8 conform a relation:

W7≤

W8≤

2*W7.

7. The touch display device of claim 1, wherein the touch layer further comprises:

a first connecting wire electrically connected to a first portion of the plurality of mesh units; and

a first connecting part disposed between the first connecting wire and the first mesh unit, wherein the first connecting part comprises;

a first main portion; and

a first sub portion, the first main portion is disposed between the first connecting wire and the first sub portion, the first sub portion is disposed between the first main portion and the first portion of the plurality of mesh units, and the first sub portion is extended toward the display region along a first direction,

wherein the first sub portion has a first edge adjacent to the first main portion and a second edge adjacent to the display region, a second direction is perpendicular to the first direction, the first edge has a first width in the second direction, the second edge has a second width in the second direction, and the first width is greater than the second width.

8. The touch display device of claim 7, wherein widths of the first sub portion between the first edge and the second edge in the second direction are gradually reduced from the first width to the second width.

9. The touch display device of claim 7, wherein the first sub portion has an intermediate section, the intermediate section is between the first edge and the second edge, and a maximum width of the intermediate section in the second direction is greater than the first width.

10. The touch display device of claim 7, wherein the first sub portion has a trapezoid shape, a spade shape or a bullet shape.

11. The touch display device of claim 1, wherein the touch layer further comprises:

a first connecting part disposed out of the display region and connected to a first portion of the plurality of mesh units in a first direction; and

a second connecting part disposed out of the display region and connected to a second portion of the plurality of mesh units in the first direction,

wherein a maximum width of the first connecting part in a second direction is different from a maximum width of the second connecting part in the second direction, and the second direction is perpendicular to the first direction.

12. The touch display device of claim 11, wherein a third portion of the plurality of mesh units forms a dummy mesh pattern, the dummy mesh pattern is disposed between the first portion of the plurality of mesh units and the second portion of the plurality of mesh units.

13. The touch display device of claim 12, wherein the dummy mesh pattern is floated.

14. The touch display device of claim 1, wherein the touch layer further comprises a first connecting part disposed out of the display region and electrically connected to a first portion of the plurality of mesh units, wherein the first connecting part comprises:

a first main portion; and

a first sub portion and a second sub portion, the first sub portion and the second sub portion are connected to the first main portion and disposed between the first main portion and the first portion of the plurality of mesh units, and the first sub portion and the second sub portion are extended toward the display region along a first direction,

wherein the first sub portion has a first maximum width in a second direction, the second sub portion has a second maximum width in the second direction, the first maximum width is different from the second maximum, and the second direction is perpendicular to the first direction.

15. The touch display device of claim 1, wherein one of the plurality of mesh units is corresponding to only one of the plurality of light emitting units.

16. The touch display device of claim 1, wherein one of the plurality of mesh units is corresponding to at least two of the plurality of light emitting units.

17. The touch display device of claim 1, further comprising a first touch electrode composed of a portion of the plurality mesh units.

18. The touch display device of claim 17, further comprising another touch layer including a second touch electrode, wherein the second touch electrode is electrically isolated from the first touch electrode.

19. The touch display device of claim 18, wherein the second touch electrode includes a plurality of third mesh units.

20. The touch display device of claim 17, wherein the first touch electrode comprises a plurality of first touch pads and a plurality of first connection lines, and each of the first connection lines is disposed between two of the first touch pads to electrically connect the plurality of first touch pads.