Small-aperture-ratio display with electrical component

• US 9,991,163 B2
• Filed: 06/29/2015
• Issued: 06/05/2018
• Est. Priority Date: 09/25/2014
• Status: Active Grant

• Current Assignee: X Display Company Technology Limited (Sensinnovat BVBA)
• Original Assignee: X-Celeprint Limited
• Inventors: Bower, Christopher, Rotzoll, Robert R., Meitl, Matthew, Cok, Ronald S.
• Primary Examiner(s): Rizkallah, Kimberly
• Assistant Examiner(s): Jang, Bo Bin
• Application Number:
  US14/754,573
• Publication Number:
  US 20160343771A1
• Time in Patent Office: 1,072 Days
• Field of Search: None
• CPC Class Codes: G09F 9/33 being semiconductor devices, e.g. diodes
• CPC Class Codes: H01L 21/77 Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate electrically programmable read-only memories or multistep manufacturing processes therefor H10B69/00
• 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

Abstract

A small-aperture-ratio display includes a display substrate and a plurality of spatially separated pixel elements distributed over the display substrate. Each pixel element includes one or more light emitters. An active electrical component is electrically connected to each of the pixel elements and each active electrical component is located on the display substrate at least partly between the pixel elements. The display substrate has a contiguous display substrate area that includes the pixel elements, the light emitters each have a light-emissive area, and the substrate area is greater than or equal to one-quarter the combined light-emissive areas of the light emitters.

Claims

1. A small-aperture-ratio display, comprising:

a display substrate;

a plurality of spatially separated pixel elements distributed in a regular array over the display substrate, each pixel element comprising one or more light emitters, a pixel controller for controlling light emission of the one or more light emitters, and a light-emissive area that consists of all of the areas that emit light within the pixel element, wherein the plurality of pixel elements comprise all of the light-emissive areas over the display substrate and each of the pixel controllers is disposed at least partially directly between the one or more light emitters of different pixel elements of the plurality of spatially separated pixel elements such that the pixel controller and the one or more light emitters in each pixel element lie on a common plane;

a plurality of active electrical components located on the display substrate at least partly directly between the pixel elements, such that the pixel elements and the plurality of active electrical components lie on a common plane, each active electrical component electrically connected to one or more of the pixel elements; and

wherein the display substrate has a contiguous display substrate area, determined as the minimum area containing all of the plurality of spatially separated pixel elements, and the combined light-emissive areas of all of the pixel elements are less than or equal to one-eighth of the contiguous display substrate area.

2. The small-aperture-ratio display of claim 1, wherein at least one of the plurality of active electrical components is an inductor, a capacitor, an integrated capacitive charge pump, a force-sensitive element, a transistor, a thin-film transistor, a circuit, a logic circuit, a power circuit, a solar cell, an antenna, or a multi-functional electrical component, or comprises multiple active electrical elements.

3. The small-aperture-ratio display of claim 2, wherein the at least one of the plurality of active electrical components is a force-sensitive element and the force-sensitive element is a piezo-electric or piezo-ionic element.

4. The small-aperture-ratio display of claim 2, wherein the capacitor stores a charge corresponding to a luminance of at least one of the one or more light emitters of the pixel element to which the capacitor is electrically connected.

5. The small-aperture-ratio display of claim 1, wherein each pixel element comprises a single light emitter.

6. The small-aperture-ratio display of claim 1, wherein each pixel element comprises at least three light emitters, each of the at least three light emitters emitting light of different colors.

7. The small-aperture-ratio display of claim 1, comprising a plurality of pixel substrates on the display substrate and wherein each of the plurality of pixel elements is located on one of the plurality of pixel substrates.

8. The small-aperture-ratio display of claim 1, wherein each pixel controller is electrically connected to an active electrical component of the plurality of active electrical components and to the one or more light emitters to control the light output by the one or more light emitters and to control the active electrical component.

9. The small-aperture-ratio display of claim 8, wherein the pixel controller is located on the display substrate.

10. The small-aperture-ratio display of claim 1 comprising one or more conductive wires electrically connecting two or more of the pixel elements.

11. The small-aperture-ratio display of claim 10, wherein the one or more conductive wires conduct signals for controlling the pixel elements, for conducting power to the pixel elements, or for providing a ground reference voltage.

12. The small-aperture-ratio display of claim 1, wherein the active electrical component is an inductor or integrated capacitive charge pump and each pixel element comprises a power-control circuit providing power to the one or more light emitters, the power-control circuit electrically connected to the inductor or integrated capacitive charge pump.

13. The small-aperture-ratio display of claim 1, wherein the combined light-emissive areas of the one or more light emitters are less than or equal to one twentieth of the contiguous display substrate area.

14. The small-aperture-ratio display of claim 1, wherein each active electrical component is an antenna and the antennas form a beam-steering antenna array.

15. The small-aperture-ratio display of claim 1, wherein the active electrical component corresponding to each pixel element is located within an area on the display substrate bounded by the neighboring pixel elements adjacent to each pixel element.

16. The small-aperture-ratio display of claim 1, wherein the one or more light emitters are formed in a layer on the display substrate or the one or more light emitters are located on the display substrate.

17. The small-aperture-ratio display of claim 1, comprising a plurality of pixel substrates, each pixel substrate separate from the display substrate and wherein each of the one or more light emitters is formed in a layer on the pixel substrate or located on the pixel substrate.

18. A small-aperture-ratio display, comprising:

a display substrate having a plurality of spatially separated light-emissive areas that correspond to a plurality of light emitters and a contiguous display substrate area that is the convex hull of all of the spatially separated light-emissive areas, wherein the combined area of the spatially separated light-emissive areas is less than or equal to one-eighth of the contiguous display substrate area.

19. The small-aperture-ratio display of claim 18, wherein the combined area of the spatially separated light-emissive areas is less than or equal to one hundredth of the contiguous display substrate area.

20. The small-aperture-ratio display of claim 18, wherein the combined area of the spatially separated light-emissive areas is less than or equal to one five-hundredth of the contiguous display substrate area.

21. A small-aperture-ratio display, comprising:

a display substrate;

a plurality of spatially separated pixel elements distributed over the display substrate, each pixel element comprising one or more light emitters, a pixel controller for controlling light emission of the one or more light emitters, and a light-emissive area that consists of all of the areas that emit light within the pixel element, wherein the plurality of pixel elements comprise all of the light-emissive areas over the display substrate and each of the pixel controllers is disposed at least partially between the one or more light emitters of different pixel elements of the plurality of spatially separated pixel elements such that the pixel controller and the one or more light emitters in each pixel element lie on a common plane;

a plurality of active electrical components located on the display substrate at least partly between the pixel elements, each active electrical component electrically connected to one or more of the pixel elements; and

wherein the display substrate has a contiguous display substrate area that includes all of the plurality of spatially separated pixel elements, and the combined light-emissive areas of all of the pixel elements are less than or equal to one-eighth of the contiguous display substrate area,

wherein each pixel controller is electrically connected to an active electrical component of the plurality of active electrical components and to the one or more light emitters to control the light output by the one or more light emitters and to control the active electrical component; and

comprising a pixel substrate separate from the display substrate and wherein the pixel controller is located entirely on the pixel substrate.

22. A small-aperture-ratio display, comprising:

a display substrate;

a plurality of spatially separated pixel elements distributed over the display substrate, each pixel element comprising one or more light emitters, a pixel controller for controlling light emission of the one or more light emitters, and a light-emissive area that consists of all of the areas that emit light within the pixel element, wherein the plurality of pixel elements comprise all of the light-emissive areas over the display substrate and each of the pixel controllers is disposed at least partially between the one or more light emitters of different pixel elements of the plurality of spatially separated pixel elements such that the pixel controller and the one or more light emitters in each pixel element lie on a common plane; and

comprising a pixel substrate separate from the display substrate and wherein one or more of the pixel elements is located entirely on the pixel substrate and the pixel substrate is located on the display substrate;

a plurality of active electrical components located on the display substrate at least partly between the pixel elements, each active electrical component electrically connected to one or more of the pixel elements; and

wherein the display substrate has a contiguous display substrate area that includes all of the plurality of spatially separated pixel elements, and the combined light-emissive areas of all of the pixel elements are less than or equal to one-eighth of the contiguous display substrate area.