Dual-screen display and display method

• US 9,721,490 B2
• Filed: 01/09/2013
• Issued: 08/01/2017
• Est. Priority Date: 01/16/2012
• Status: Active Grant

• Current Assignee: Lenovo (Beijing) Limited (Lenovo Group Ltd.), Lenovo Company Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo (Beijing) Limited (Lenovo Group Ltd.), Lenovo Company Limited (Lenovo Group Ltd.)
• Inventors: Yang, Guang, Shang, Ke, Niu, Quan
• Primary Examiner(s): SHERMAN, STEPHEN G
• Application Number:
  US14/348,239
• Publication Number:
  US 20140247198A1
• Time in Patent Office: 1,665 Days
• Field of Search: 345 4
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 2320/0606 Manual adjustment
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/36 using liquid crystals

Abstract

A dual-screen display and a display method. The dual-screen display comprises: a display unit, a control unit and controllable light-transmitting bodies. Each display unit comprises at least three sub-pixel units. The controllable light-transmitting bodies are distributed on an upper surface and a lower surface of the sub-pixel units. The control unit is used for controlling, according to an instruction of a user, a control signal applied to the controllable light-transmitting bodies, so as to control the transparency of the controllable light-transmitting bodies. The controllable light-transmitting bodies are distributed on the two surfaces of the sub-pixel unit, and a control signal is applied according to an instruction of the user, so that the controllable light-transmitting bodies present corresponding transparency, thereby respectively controlling light of the sub-pixel unit irradiated to the two surfaces.

Claims

1. A display device, comprising:

a display unit, a control unit, and transparence-controllable bodies, wherein

the display unit comprises at least three sub-pixel units, each of the at least three sub-pixel units has a first side and a second side;

the transparence-controllable bodies are disposed on a first side and a second side of each individual sub-pixel unit of the at least three sub-pixel units; and

the control unit is configured to control a control signal applied on the transparence-controllable bodies based on a user instruction, to control transparencies of the transparence-controllable bodies, wherein the control unit is configured to control the transparence-controllable bodies on the first side and second side of each individual sub-pixel unit of the at least three sub-pixel units to have a first transparence and a second transparence, and control the transparence-controllable bodies respectively on two adjacent sub-pixel units by a same side of the two adjacent sub-pixel units to have different transparences to display two different images on two screens.

2. The display device according to claim 1, wherein the transparence-controllable bodies include materials with controllable reflectivity, and the control unit is further configured to control the transparence-controllable bodies having the second transparence to have reflectivity.

3. The display device according to claim 1, wherein the control unit is configured to control the transparence-controllable bodies on the first side or the second side of the first one of every N sub-pixel units to have a third transparence.

4. The display device according to claim 3, wherein the third transparence is a transparence that causes a half of light to pass through the transparence-controllable body.

5. A display method applied to a display device, the display device comprising a display unit, and the display unit comprising at least three sub-pixel units, wherein the method comprises:

receiving a user instruction;

controlling a control signal applied on transparence-controllable bodies based on the user instruction, wherein each of the at least three sub-pixel units has a first side and a second side, the transparence-controllable bodies are disposed on a first side and a second side of each individual sub-pixel unit of the at least three sub-pixel units, wherein a control unit is configured to control the transparence-controllable bodies on the first side and the second side of each individual sub-pixel unit of the at least three sub-pixel units to have a first transparence and a second transparence, and control the transparence-controllable bodies respectively on two adjacent sub-pixel units on a same side of the two adjacent sub-pixel units to have different transparences to display two different images on two screens; and

displaying based on the user instruction.

6. The method according to claim 5, further comprising:

controlling the transparence-controllable bodies having the second transparence to have reflectivity.

7. The method according to claim 5, wherein controlling the control signal applied on the transparence-controllable bodies based on the user instruction comprises:

controlling the transparence-controllable bodies on the first side or the second side of the first one of every N sub-pixel units to have a third transparence.

8. The method according to claim 7, wherein the third transparence is a transparence that causes a half of light to pass through the transparence-controllable bodies.