Viewing angle control device and display apparatus
US-2019113783-A1 · Apr 18, 2019 · US
Display element with reduced backlight in the edge region
US2023350124A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023350124-A1 |
| Application number | US-202117925239-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 3, 2021 |
| Priority date | May 15, 2020 |
| Publication date | Nov 2, 2023 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A display element comprising a display panel and a backlight arranged behind the display panel, with a light guide with edge coupling, wherein the backlight is designed so the light intensity of the backlight is lower in a peripheral region of the display panel than in a central region of the display panel.
First claim
Opening claim text (preview).
1 . A display element comprising: a display panel; and a backlight arranged behind the display panel with a light guide with edge coupling, wherein the backlight is designed so a light intensity of the backlight is less in a peripheral region of the display panel than in a central region of the display panel. 2 . The display element as claimed in claim 1 , wherein the light guide has microstructuring ( 32 , 33 ) for coupling out light, which is designed so less light is coupled out of the light guide in a region of the light guide for backlighting the peripheral region of the display panel than in a region of the light guide for backlighting the central region of the display panel. 3 . The display element as claimed in claim 2 , wherein the microstructuring is arranged on an upper side of the light guide, on a lower side of the light guide, or on the upper side and the lower side of the light guide. 4 . The display element as claimed in claim 2 , wherein the microstructuring for coupling of the light out of the light guide is achieved by a location-dependent number of coupling-out structures per unit area or by a location-dependent property of the coupling-out structures. 5 . The display element as claimed in claim 1 , wherein the light intensity of the backlight has a gradient at least in the peripheral region of the display panel. 6 . The display element as claimed in claim 1 , wherein the backlight has at least one light-influencing fade-out element. 7 . The display element as claimed in claim 6 , wherein the light-influencing fade-out element is an optical layer of an optical stack of the backlight. 8 . The display element as claimed in claim 6 , wherein the light-influencing fade-out element is a print applied to the light guide or to an optical stack of the backlight. 9 . The display element as claimed in claim 6 , wherein the light-influencing fade-out element is an optical layer arranged on a reflector or a print applied to the reflector. 10 . The display element as claimed in claim 6 , wherein the light-influencing fade-out element has a location-dependent transmission.
Assignees
Inventors
Classifications
- G02B6/0035Primary
provided on the surface of the light guide or in the bulk of it · CPC title
varying in density, size, shape or depth along the light guide · CPC title
- G02B6/0036Primary
2-D arrangement of prisms, protrusions, indentations or roughened surfaces · CPC title
Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide · CPC title
Illuminating devices · CPC title
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Frequently asked questions
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- What does patent US2023350124A1 cover?
- A display element comprising a display panel and a backlight arranged behind the display panel, with a light guide with edge coupling, wherein the backlight is designed so the light intensity of the backlight is lower in a peripheral region of the display panel than in a central region of the display panel.
- Who is the assignee on this patent?
- Continental Automotive Tech Gmbh
- What technology area does this patent fall under?
- Primary CPC classification G02B6/0035. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 02 2023 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).