IP Library Granted Patent US 11,238,780
Granted Patent B2
US 11,238,780 · App. 16/648,796 · Granted Feb 1, 2022

Displays with movable privacy gates

Inventors: Kuan-Ting Wu (Taipei, TW); Wei-Chung Chen (Taipei, TW); Hui He (Fort Collins, CO)
Assignee: Hewlett-Packard Development Company, L.P.
G09G3/32G02B26/0808G09G2320/028G09G2320/068G09G2358/00
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Quick Facts
Patent No.
US 11,238,780
App. No.
16/648,796
Granted
Feb 1, 2022
Kind
B2
Abstract

In one example, a display is described, which may include a plurality of spaced light emitting device packages, a privacy gate having partition walls to partition each of the plurality of spaced light emitting device packages, and a control unit to selectively move the partition walls up or down relative to the plurality of spaced light emitting device packages to control a viewing angle of the display.

Claims (23)

1. A display comprising:

a plurality of spaced light emitting device packages;

a privacy gate having partition walls to partition each of the plurality of spaced light emitting device packages;

an optical film disposed above the privacy gate, wherein the optical film comprises an asymmetric turning film, an asymmetrical prism film, a prism film, a brightness enhancement film (BEF), a dual brightness enhancement film (DBEF), a diffuser, a polarizer film, a retardation film, or any combination thereof; and

a control unit to selectively move the partition walls up or down relative to the plurality of spaced light emitting device packages to control a viewing angle of the display.

2. The display of claim 1 , wherein the plurality of spaced light emitting device packages are arranged in columns and rows, and wherein each light emitting device package comprises at least one micro-light-emitting diode (μLED) pixel.

3. The display of claim 1 , wherein the privacy gate is a grid shaped structure comprising a plurality of columns of the partition walls disposed by means of a supporting framework to partition the plurality of spaced light emitting device packages, and wherein each light emitting device package is accommodated in a respective space defined between the columns of the partition walls.

4. The display of claim 3 , wherein the control unit is to move the plurality of columns of the partition walls up or down relative to the supporting framework to provide a two-way privacy control of the viewing angle of the display.

5. The display of claim 1 , wherein the privacy gate is a grid shaped structure comprising a plurality of intersecting rows and columns of the partition walls disposed by means of a supporting framework to partition the plurality of spaced light emitting device packages, wherein each light emitting device package is accommodated in a respective space defined by the intersecting rows and columns of the partition walls.

6. The display of claim 5 , wherein the control unit is to move the partition walls corresponding to the rows or columns up or down relative to the supporting framework to provide a two-way privacy control of the viewing angle of the display, and wherein the two-way privacy control comprises one of a horizontal viewing angle control and a vertical viewing angle control.

7. The display of claim 5 , wherein the control unit is to move the partition walls corresponding to the rows and columns up and down relative to the supporting framework to provide a four-way privacy control of the viewing angle of the display, and wherein the four-way privacy control comprises a horizontal viewing angle control and a vertical viewing angle control.

8. An electronic device comprising:

a display comprising:

a backplane having a plurality of spaced light-emitting diode (LED) packages;

a privacy gate having partition walls to partition each of the plurality of spaced LED packages, wherein the privacy gate is a grid shaped structure formed by a plurality of intersecting rows and columns of the partition walls, and wherein each LED package is accommodated in a respective space defined by the intersecting rows and columns of the partition walls; and

an optical film disposed above the privacy gate, wherein the optical film comprises an asymmetric turning film, an asymmetrical prism film, a prism film, a brightness enhancement film (BEF), a dual brightness enhancement film (DBEF), a diffuser, a polarizer film, a retardation film, or any combination thereof; and

a control unit to selectively move the partition walls up or down relative to the plurality of spaced LED packages to control a viewing angle of the display.

9. The electronic device of claim 8 , comprising a substrate disposed on the optic film wherein the substrate is a glass substrate or a plastic substrate.

10. The electronic device of claim 8 , wherein the control unit is to:

move the partition walls corresponding to the rows up or down relative to the plurality of spaced LED packages to control a vertical viewing angle of the display;

move the partition walls corresponding to the columns up or down relative to the plurality of spaced LED packages to control a horizontal viewing angle of the display; or

move the partition walls corresponding to the rows and columns up or down relative to the plurality of spaced LED packages to control the horizontal viewing angle and the vertical viewing angle of the display.

11. The electronic device of claim 8 , wherein the control unit is to control a degree of privacy on the display by moving the privacy gate to multiple positions corresponding to multiple privacy modes, and wherein each privacy mode is having a viewing angle that is different from the other privacy modes.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 19, 2020
From: WU, KUAN-TING; CHEN, WEI-CHUNG; HE, HUI
To: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Reel/Frame 052190/0017 →
Continuity (1)
Related Publication 20200241284A1 · Jul 30, 2020