Switchable displays with movable pixel units

Patent metadata

Field	Value
Publication number	US-11475805-B2
Application number	US-201817042383-A
Country	US
Kind code	B2
Filing date	Sep 27, 2018
Priority date	Sep 27, 2018
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

In an example, a switchable display may include a movable pixel unit having a rotatable motive element. The movable pixel unit may further include a first display unit having a first display characteristic and disposed on a first side of the rotatable motive element. The movable pixel unit may further include a second display unit having a second display characteristic and disposed on a second side of the rotatable motive unit, different from the first side.

First claim

What is claimed is:

1. A switchable display, comprising:
a movable pixel unit, comprising:
a rotatable motive element;
a first display unit having a first display characteristic disposed on a first side of the rotatable motive element; and
a second display unit having a second display characteristic, different from the first display characteristic, and disposed on a second side of the rotatable motive element, different from the first side, and wherein the first display characteristic is an emissive display characteristic, and the second display characteristic is a reflective display characteristic.

2. The switchable display of claim 1 , further comprising a display screen.

3. The switchable display of claim 2 , wherein the rotatable motive element is to position the first display unit to face the display screen in a first display mode, and to position the second display unit to face the display screen in a second display mode.

4. The switchable display of claim 3 , wherein the first and second display units are to be substantially parallel to the display screen when disposed in the first display mode and the second display mode, respectively.

5. The switchable display of claim 3 , wherein the rotatable motive element comprises a microelectromechanical motor.

6. A switchable display, comprising:
a display screen;
a movable pixel unit, comprising:
a rotatable motive element;
a first display unit having a first display characteristic and disposed on a first side of the rotatable motive element; and
a second display unit having a second display characteristic, different from the first display characteristic, and disposed on a second side of the rotatable motive element, opposite from the first side, and wherein the first display characteristic is an emissive display characteristic, and the second display characteristic is a reflective display characteristic,
wherein the rotatable motive element is to rotate the movable pixel unit to position the first display unit to face the display screen in a first display mode, and to position the second display unit to face the display screen in a second display mode.

7. The switchable display of claim 6 , wherein the rotatable motive element comprises a microelectromechanical motor.

8. The switchable display of claim 6 , wherein the switchable display is a part of a standalone monitor.

9. The switchable display of claim 6 , wherein the switchable display is a part of an integrated computing device.

10. An electronic device, comprising:
a computing device portion;
a switchable display attached to the computing device portion, comprising:
a display screen; and
an array of movable pixel units, each movable pixel unit comprising:
a rotatable motive element comprising a microelectromechanical motor;
a first display unit disposed on a first side of the rotatable motive element; and
a second display unit disposed on a second side of the rotatable motive element, different from the first side,
wherein the first display unit has an emissive display characteristic and the second display unit has a reflective display characteristic.

11. The electronic device of claim 10 , wherein the microelectromechanical motor is to rotate the movable pixel unit to position the first display unit to face the display screen in an emissive display mode, and to position the second display unit to face the display screen in a reflective display mode.

12. The electronic device of claim 11 , wherein the emissive display mode and the reflective display mode are user-selectable.

13. The electronic device of claim 11 , wherein the computing device portion is to be in a power-saving mode when the switchable display is in the reflective display mode.

Assignees

• Hewlett Packard Development Co

Inventors

• Wu Kuan-Ting
• Chang Chi Hao
• Shi Xuan

Classifications

• B81B2203/056

  Rotation in a plane parallel to the substrate · CPC title

• G09F9/37 Primary

  being movable elements (G09F9/302 takes precedence) · CPC title

• G02B26/0833

  the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD (G02B26/0825 takes precedence; micromechanical devices in general B81B) · CPC title

• B81B5/00

  Devices comprising elements which are movable in relation to each other, e.g. comprising slidable or rotatable elements · CPC title

• B81B2201/04

  Optical MEMS · CPC title