Liquid crystal display device
US-2016306219-A1 · Oct 20, 2016 · US
Electronic display with multiple polarizer layers
US10288968B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10288968-B2 |
| Application number | US-201715700924-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2017 |
| Priority date | Sep 11, 2017 |
| Publication date | May 14, 2019 |
| Grant date | May 14, 2019 |
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- Title
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Abstract
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Disclosed herein are devices, methods and systems for implementing an electronic display with a dead-front appearance with a combination of polarizing devices. Specifically, the various permutations and combinations disclosed herein each include a linear polarizer, an active polarizer, and various combinations of linear and curved lenses, each being driven by light sourced from a backlight display.
First claim
Opening claim text (preview).
We claim: 1. An electronic display, comprising: a backlight display configured to turn on and off, the backlight display including a display linear polarizer; a linear polarizer disposed on a surface on which the backlight display projects light; and an active polarizer coupled to an electronic circuit, the active polarizer configured to turn on when the backlight display is on, and turn off when the backlight display is off. 2. The electronic display according to claim 1 , further comprising a transparent lens. 3. The electronic display according to claim 1 , wherein the active polarizer is defined as a guest-host dichroic dye liquid crystal system. 4. The electronic display according to claim 3 , wherein the electronic circuit is configured to apply voltage to the active polarizer to allow at least 70% transmission. 5. The electronic display according to claim 2 , wherein the backlight display, the linear polarizer, the active polarizer, and the lens are optically bonded with each other. 6. The electronic display according to claim 2 , wherein the backlight display physically abuts the linear polarizer, the linear polarizer physically abuts the active polarizer, and the active polarizer physically abuts the lens. 7. The electronic display according to claim 2 , wherein the backlight display physically abuts the linear polarizer, the linear polarizer physically abuts the lens, and the lens physically abuts the active polarizer. 8. The electronic display according to claim 2 , further comprising an air gap between the linear polarizer and the active polarizer. 9. The electronic display according to claim 8 , wherein the backlight display physically abuts the linear polarizer, and the active polarizer physically abuts the lens. 10. The electronic display according to claim 8 , further comprising a second linear polarizer. 11. The electronic display according to claim 10 , wherein the backlight display physically abuts the linear polarizer, the active polarizer physically abuts the lens, and the lens physically abuts the second linear polarizer. 12. The electronic display according to claim 2 , further comprising an air gap between the linear polarizer and the active polarizer, wherein the active polarizer and the lens are curved. 13. The electronic display according to claim 12 , further comprising a second linear polarizer. 14. The electronic display according to claim 13 , wherein the second linear polarizer is curved. 15. The electronic display according to claim 12 , wherein the backlight display physically abuts the linear polarizer, and the active polarizer physically abuts the lens. 16. The electronic display according to claim 14 , wherein the backlight display physically abuts the linear polarizer, and the active polarizer physically abuts the lens, and the active polarizer physically abuts the second linear polarizer.
Assignees
Inventors
Classifications
- G02F1/133528Primary
Polarisers · CPC title
pleochroic · CPC title
- G02F1/13725Primary
based on guest-host interaction (G02F1/13762, G02F1/13737, take precedence) · CPC title
Lenses, e.g. microlenses or Fresnel lenses · CPC title
in which at least one liquid crystal cell or layer is doped with a pleochroic dye, e.g. GH-LC cell (G02F1/13476 takes precedence) · CPC title
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- What does patent US10288968B2 cover?
- Disclosed herein are devices, methods and systems for implementing an electronic display with a dead-front appearance with a combination of polarizing devices. Specifically, the various permutations and combinations disclosed herein each include a linear polarizer, an active polarizer, and various combinations of linear and curved lenses, each being driven by light sourced from a backlight disp…
- Who is the assignee on this patent?
- Weindorf Paul Fredrick Luther, Hayden Brian John, Sharif Qais, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G02F1/133528. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 14 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).