DISPLAY WITH INTEGRATED ELECTRODES

• US 20170102797A1
• Filed: 10/08/2015
• Published: 04/13/2017
• Est. Priority Date: 06/18/2015
• Status: Active Grant

• Current Assignee: X Display Company Technology Limited (Sensinnovat BVBA)
• Original Assignee: X-Celeprint Limited
• Inventors: Cok, Ronald S.
• Granted Patent: US 10,289,252 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/13318 Circuits comprising a photodetector
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133553 Reflecting elements associated to illuminating devices G02F1/133605
• CPC Class Codes: G02F 1/133601 for spatial active dimming
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133616 Front illuminating devices
• CPC Class Codes: G02F 2201/50 Protective arrangements
• CPC Class Codes: G02F 2203/02 reflective
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 25/167 comprising optoelectronic devices, e.g. LED, photodiodes
• CPC Class Codes: H01L 33/60 : Reflective elements
• CPC Class Codes: H01L 33/62 : Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

An inorganic light-emitting diode display with integrated electrodes includes a display surface having a display area and a plurality of spatially separated light-emitting diodes (such as inorganic light-emitting diodes) disposed in rows on the display surface in the display area. The inorganic light-emitting diodes in each row of inorganic light-emitting diodes are electrically connected by one or more electrical conductors. One or more row touch electrodes are disposed in rows over the display surface in the display area between the rows of inorganic light-emitting diodes and are disposed on the display surface and have a width that is larger than a length and width of the light-emitting diodes. A display with an integrated touch screen includes one or more sensing elements disposed in a common plane with the light emitters or on a side of the light emitters opposite the display surface.

Claims

1. A light-emitting diode display with integrated electrodes, comprising:

a display surface having a display area;

a plurality of spatially separated light-emitting diodes (LEDs) disposed in rows on the display surface in the display area, the light-emitting diodes in each row of light-emitting diodes electrically connected by one or more electrical conductors; and

one or more row touch electrodes disposed in rows over the display surface at least partially in the display area between rows of inorganic light-emitting diodes, wherein the one or more row touch electrodes are disposed on the display surface and have a width that is larger than a length and width of the light-emitting diodes.

4. The display of claim 1, wherein the plurality of spatially separated LEDs comprise red light emitters emitting red light, green light emitters emitting green light, and blue light emitters emitting blue light.

5. The display of claim 4, comprising a plurality of pixels, wherein:

each pixel comprises a red light emitter, a green light emitter, and a blue light emitter; and

the distance between any two light emitters in a respective pixel is less than the distance between adjacent pixels.

6. The display of claim 1, wherein the one or more row touch electrodes are opaque.

7. The display of claim 1, comprising one or more column touch electrodes disposed over the display surface in the display area, the column touch electrodes extending in a different direction than the row touch electrodes.

8. The display of claim 7, wherein the LEDs are disposed in columns and the column touch electrodes are disposed between the columns of LEDs in a direction parallel to the display surface.

9. The display of claim 7, wherein the one or more column touch electrodes are opaque.

16. The display of claim 1, comprising a light-absorbing layer located on a common layer with the LEDs.

17. The display of claim 1, comprising a light-absorbing layer located at least partially between the one or more row touch electrodes and the display surface or at least partially on a side of the row electrodes opposite the display surface.

2-3. -3. (canceled)

10-15. -15. (canceled)

18. A display with an integrated touch screen, comprising:

a display surface having a display area;

a plurality of spatially separated light emitters disposed on the display surface in the display area; and

a touch screen including one or more sensing elements, wherein the sensing elements are disposed in a common plane with the light emitters.

22. The display of claim 18, wherein the sensing elements are not visually transparent.

23. The display of claim 18, comprising a light-absorbing layer located at least partially in a common layer with the light emitters, at least partially in a layer behind the light emitters in a direction orthogonal to the display surface, or at least partially in a layer on a side of the sensing elements opposite the display surface.

24. The display of claim 23, wherein the light-absorbing layer includes optical vias in which the light emitters are disposed.

25. The display of claim 18, wherein the sensing elements each include one or more sensing components and all of the sensing components are disposed in the common plane with the light emitters.

26. The display of claim 18, wherein the sensing elements each include one or more sensing components and all of the sensing components are disposed on a side of the light emitters opposite the display surface in a direction orthogonal to the display surface.

27. The display of claim 18, wherein the sensing elements each include two or more sensing components and at least one sensing component is disposed in the common plane with the light emitters and at least one sensing component is disposed on a side of the light emitters opposite the display surface in a direction orthogonal to the display surface.

19. A display with an integrated touch screen, comprising:

a display surface having a display area;

a plurality of spatially separated light emitters disposed on the display surface in the display area that emit light through the display surface; and

a touch screen including one or more sensing elements, wherein the sensing elements are disposed on a side of the light emitters opposite the display surface.

20-21. -21. (canceled)

28. An inorganic light-emitting diode display with integrated electrodes, comprising:

a display surface having a display area;

a plurality of spatially separated light-emitting diodes (LEDs) disposed on the display surface in the display area;

a plurality of row touch electrodes disposed in rows over the display surface in the display area between the light-emitting diodes; and

a plurality of column touch electrodes disposed in columns over the display surface in the display area between the light-emitting diodes in a direction parallel to the display surface.

29. The display of claim 28, wherein the row touch electrodes, the column touch electrodes, or both the row touch electrodes and the column touch electrodes are opaque.

30. The display of claim 28, wherein the row touch electrodes, the column touch electrodes, or both the row touch electrodes and the column touch electrodes are located on a side of the iLEDs adjacent to the display surface.

31-41. -41. (canceled)