Touch display device

• US 10,522,566 B2
• Filed: 03/07/2017
• Issued: 12/31/2019
• Est. Priority Date: 12/02/2016
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Lin, Hsiao-Lang, Yueh, Jui-Jen, Wang, Chao-Hsiang
• Primary Examiner(s): Michaud, Robert J
• Application Number:
  US15/451,416
• Publication Number:
  US 20180157358A1
• Time in Patent Office: 1,029 Days
• 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 is provided and includes a substrate, a plurality of light-emitting units, and a plurality of touch electrodes. The substrate includes a first edge. The light-emitting units are disposed on the substrate. The touch electrodes are disposed on the light-emitting units. A first distance is a minimum distance from the first edge to the light-emitting units parallel to the substrate, a second distance is a minimum distance from the first edge to the touch electrodes parallel to the substrate, and the first distance is greater than the second distance.

Claims

1. A touch display device comprising:

a substrate comprising a first edge;

a plurality of light-emitting units disposed on the substrate;

a plurality of touch electrodes disposed on the light-emitting units;

an insulation layer disposed between the light-emitting units and the touch electrodes;

a touch trace; and

a wire layer electrically connected to the touch electrodes;

wherein a first distance is a minimum distance from the first edge to the light-emitting units parallel to the substrate, a second distance is a minimum distance from the first edge to the touch electrodes parallel to the substrate, and the first distance is greater than the second distance;

wherein the touch trace is electrically connected to one of the touch electrodes, and the touch trace contacts the substrate and the insulation layer;

wherein the insulation layer has a plurality of protrusions, and the wire layer is disposed on the protrusions.

2. The touch display device of claim 1, wherein a third distance is a minimum distance from the first edge to the insulation layer parallel to the substrate, and the third distance is less than the second distance.

3. The touch display device of claim 2, wherein a portion of the insulation layer disposed between the light-emitting units and the touch trace.

4. The touch display device of claim 1, wherein the wire layer does not overlap the light-emitting units in a direction perpendicular to the substrate.

5. The touch display device of claim 1, wherein a third distance is a minimum distance from the first edge to the insulation layer parallel to the substrate, and the third distance is greater than the second distance.

6. The touch display device of claim 1, wherein the substrate further comprises a second edge, a fourth distance is a minimum distance from the second edge to the light-emitting units parallel to the substrate, a fifth distance is a minimum distance from the second edge to the touch electrodes parallel to the substrate, and the fourth distance is less than the fifth distance.

7. The touch display device of claim 1, wherein the light-emitting units have a display region in a direction perpendicular to the substrate, and the touch electrodes have a touch region in the direction perpendicular to the substrate.

8. The touch display device of claim 7, wherein the display region is disposed in the touch region in the direction perpendicular to the substrate.

9. The touch display device of claim 7, wherein the display region has a first area, the touch region has a second area, and the first area is less than the second area.

10. The touch display device of claim 7, wherein the touch region comprises a first touch region, a second touch region and a non-touch region, the non-touch region is between the first touch region and the second touch region, a portion of the touch electrodes is disposed in the first touch region, and another portion of the touch electrodes is disposed in the second touch region.

11. The touch display device of claim 10, wherein the non-touch region separates the first touch region from the second touch region.

12. The touch display device of claim 10, wherein the first touch region has a first side and a second side, the first side faces the second touch region, and the first side and the second side are connected to each other, and wherein the first side and the second side have an included angle less or greater than 90 degrees.

13. The touch display device of claim 10, further comprising a plurality of first touch wires connected to the portion of the touch electrodes in the first touch region and a plurality of second touch wires connected to the another portion of the touch electrodes in the second touch region.

14. The touch display device of claim 10, further comprising a connecting wire overlapping the non-touch region in the direction perpendicular to the substrate.

15. The touch display device of claim 14, wherein the connecting wire electrically connects one of the touch electrodes in the first touch region and one of the touch electrodes in the second touch region.

16. The touch display device of claim 10, wherein the substrate has a bent portion and a flat portion, and the bent portion corresponds to the non-touch region.

17. The touch display device of claim 16, wherein the insulation layer comprises a first portion corresponding to the bent portion and a second portion corresponding to the flat portion, the first portion has a maximum thickness, the maximum thickness of the first portion is a first thickness, the second portion has a maximum thickness, the maximum thickness of the second portion is a second thickness greater than or equal to the first thickness.

18. The touch display device of claim 16, wherein the light-emitting units correspond to the flat portion.