DUAL-SCREEN DISPLAY AND DISPLAY METHOD

• US 20140247198A1
• Filed: 01/09/2013
• Published: 09/04/2014
• Est. Priority Date: 01/16/2012
• Status: Active Grant

• Current Assignee: Beijing Lenovo Software Ltd (Lenovo Group Ltd.), Lenovo Company Limited (Lenovo Group Ltd.)
• Original Assignee: Beijing Lenovo Software Ltd (Lenovo Group Ltd.), Lenovo Company Limited (Lenovo Group Ltd.)
• Inventors: Yang, Guang, Shang, Ke, Niu, Quan
• Granted Patent: US 9,721,490 B2
• Time in Patent Office: Days
• US Class Current: 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 dual-screen display device, comprising:

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

the display unit comprises at least three sub-pixel units;

the transparence-controllable bodies are disposed on an upper side and a lower side of the sub-pixel unit respectively; and

the control unit is configured to control a control signal applied on the transparence-controllable body based on a user instruction, to control transparence of the transparence-controllable body.

2. The dual-screen display device according to claim 1, wherein

the control unit is configured to control the transparence-controllable bodies on the upper side and the lower side of any of the sub-pixel units to have a first transparence and a second transparence respectively, and meanwhile control the transparence-controllable bodies on a same side of alternate sub-pixel units to have same transparences;

or

the control unit is configured to control the transparence-controllable bodies on a same side of the sub-pixel units to have a first transparence, and meanwhile control the transparence-controllable bodies on the other side of the sub-pixel units to have a second transparence,

wherein the first transparence is a transparence which causes light to pass maximally, and the second transparence is a transparence which causes light to be blocked maximally.

3. The dual-screen display device according to claim 2, wherein the transparence-controllable body is material with controllable reflectivity, and the control unit is further configured to control the transparence-controllable body having the second transparence to have reflectivity.

4. The dual-screen display device according to claim 1, wherein the control unit is configured to control the transparence-controllable bodies on a same side of the sub-pixel units to have a third transparence.

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

6. A display method, which is applied to a dual-screen display device, the dual-screen 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 instruction, wherein the transparence-controllable bodies are disposed on an upper side and a lower side of the sub-pixel unit; and

displaying based on the instruction.

7. The method according to claim 6, wherein the controlling a control signal applied on transparence-controllable bodies based on the instruction comprises:

controlling the transparence-controllable bodies on the upper side and the lower side of any of the sub-pixel units to have a first transparence and a second transparence respectively and meanwhile controlling the transparence-controllable bodies on a same side of alternate sub-pixel units to have same transparences, based on the instruction;

or

controlling the transparence-controllable bodies on a same side of the sub-pixel units to have a first transparence and meanwhile controlling the transparence-controllable bodies on the other side of the sub-pixel units to have a second transparence, based on the instruction,

wherein the first transparence is a transparence which causes light to pass maximally, and the second transparence is a transparence which causes light to be blocked maximally.

8. The method according to claim 7, further comprising:

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

9. The method according to claim 6, wherein the controlling a control signal applied on transparence-controllable bodies based on the instruction comprises:

controlling the transparence-controllable bodies on a same side of the sub-pixel units to have a third transparence.

10. The method according to claim 9, wherein the third transparence is a transparence which causes a half of light to pass through the transparence-controllable body.

11. A display device, comprising:

a display unit, a control unit and a transparence-controllable body,

wherein the display unit comprises a sub-pixel unit;

the transparence-controllable body is disposed on one side of the sub-pixel unit facing a display screen; and

the control unit is configured to control a control signal applied on the transparence-controllable body, to control transparence of the transparence-controllable body.