Inorganic-light-emitter display with integrated black matrix
US-2016351539-A1 · Dec 1, 2016 · US
Ultra-thin display using thin flexible led light sheet
US2016154170A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016154170-A1 |
| Application number | US-201615014335-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 3, 2016 |
| Priority date | Jun 12, 2014 |
| Publication date | Jun 2, 2016 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Various applications and customizations of a thin flexible LED light sheet are described. Microscopic LED dice are printed on a thin substrate, and the LEDs are sandwiched between two conductor layers to connect the LEDs in parallel. The conductor layer on the light emitting side is transparent. In one embodiment, the light sheet is applied to the bottom surface of a controllable display to serve as a backlight. In another embodiment, the light sheet is applied to the edge of a leaky light guide for backlighting. In another embodiment, a thin light-emitting edge of the light sheet is coupled to the edge of the leaky light guide for backlighting. In another embodiment, the light sheet is affixed to a medical instrument, and light is emitted from a thin light-emitting edge of the light sheet. In one embodiment, the light sheet is optically coupled to an optical fiber.
First claim
Opening claim text (preview).
What is claimed is: 1 . An illuminating device comprising: a printed light emitting diode (LED) light sheet comprising a plurality of inorganic LED dies sandwiched between two conductive layers, the light sheet having at least one light emitting surface; and a display layer backlit by the printed light sheet. 2 . The device of claim 1 wherein the light sheet emits light through a first surface substantially parallel to the conductive layers, and wherein the first surface opposes the display layer. 3 . The device of claim 2 further comprising a wavelength-conversion layer between the light sheet and the display layer. 4 . The device of claim 1 wherein the light sheet emits light through a first edge surface, the device further comprising a light guide, the light guide having a second edge surface coupled to receive light from the first edge surface of the light sheet, wherein light exits the light guide through a non-edge surface opposing the display layer. 5 . The device of claim 4 further comprising a wavelength conversion layer over the first edge. 6 . The device of claim 4 wherein the light sheet has reflective surfaces that cause the light emission of the light sheet to be from the first edge surface. 7 . The device of claim 6 wherein at least one of the reflective surfaces reflect light in the direction of the first edge surface. 8 . The device of claim 4 wherein the first edge surface is a diffusing surface. 9 . The device of claim 4 wherein the light sheet and light guide are supported by a printed circuit board surface. 10 . The device of claim 1 wherein the display layer is a liquid crystal display (LCD) layer. 11 . The device of claim 1 wherein the display layer is an electronic ink layer. 12 . The device of claim 1 wherein there is a random distribution of LED dies in the light sheet. 13 . An illuminating device comprising: a flexible printed light emitting diode (LED) light sheet comprising a plurality of inorganic LEDs sandwiched between two conductive layers, the light sheet having at least one light emitting surface; and an optical fiber, wherein the light sheet is optically coupled to the optical fiber. 14 . The device of claim 13 wherein one end of the optical fiber is coupled to a camera and another end of the optical fiber receives an image illuminated by the light sheet. 15 . The device of claim 14 wherein the light sheet emits light through a first edge surface to illuminate objects detected by the camera.
Assignees
Inventors
Classifications
Package configurations · CPC title
Arrangements of plural sources, e.g. multi-colour light sources · CPC title
Mechanical Engineering · mapped topic
Diffusing sheet or layer · CPC title
provided by one optical element, or plurality thereof, placed on the light output side of the light guide · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016154170A1 cover?
- Various applications and customizations of a thin flexible LED light sheet are described. Microscopic LED dice are printed on a thin substrate, and the LEDs are sandwiched between two conductor layers to connect the LEDs in parallel. The conductor layer on the light emitting side is transparent. In one embodiment, the light sheet is applied to the bottom surface of a controllable display to ser…
- Who is the assignee on this patent?
- Nthdegree Tech Worldwide Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B6/0073. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jun 02 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).