Display screen having mirror function, control method, device and terminal

Patent metadata

Field	Value
Publication number	US-10371970-B2
Application number	US-201515513391-A
Country	US
Kind code	B2
Filing date	Jul 20, 2015
Priority date	Sep 25, 2014
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

Disclosed a display screen having a mirror function, a control method, a device and a terminal. The display screen includes: a screen lens ( 20 ), a liquid crystal screen ( 22 ) and a nano suspension layer ( 21 ), wherein the nano suspension layer ( 21 ) is disposed between the screen lens and the liquid crystal display. The control method includes: controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-off signal; and controlling the upper plate to provide a voltage, or controlling the upper plate to provide a voltage and controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-on signal.

First claim

What is claimed is:

1. A control device for a display screen having a mirror function, comprising: a display screen having a mirror function, a first trigger, a second trigger and a controller, wherein
the display screen comprises a screen lens, a liquid crystal display, a nano suspension layer, and a magnetic layer provided on a back surface of the liquid crystal display;
the nano suspension layer is disposed between the screen lens and the liquid crystal display;
the nano suspension layer comprises an upper plate, a nanomaterial layer and a grounding plate;
the upper plate is disposed between the screen lens and the nanomaterial layer and the grounding plate is disposed between the liquid crystal display and the nanomaterial layer;
the first trigger is arranged to send a trigger-on signal to the controller when a first predetermined condition is satisfied;
the second trigger is arranged to send a trigger-off signal to the controller when a second predetermined condition is satisfied; and
the controller is arranged to control the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-off signal; and to control the upper plate to provide a voltage, or control the upper plate to provide a voltage and control the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-on signal.

2. The device of claim 1 , wherein the predetermined condition is a light screen signal or an unlock signal or a mirror function disabling signal inputter by a user, and the second predetermined condition is a black screen signal or a lock screen signal or a receipt of a mirror function enabling signal inputted by the user.

3. A control method for a display screen having a mirror function, applied in a display screen, wherein
the display screen comprises a screen lens, a liquid crystal display, a nano suspension layer, and a magnetic layer provided on a back surface of the liquid crystal display,
the nano suspension layer is disposed between the screen lens and the liquid crystal display,
the nano suspension layer comprises an upper plate, a nanomaterial layer and a grounding plate,
the upper plate is disposed between the screen lens and the nanomaterial layer and the grounding plate is disposed between the liquid crystal display and the nanomaterial layer;
wherein the method comprises:
controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-off signal; and
controlling the upper plate to provide a voltage, or controlling the upper plate to provide a voltage and controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-on signal.

4. The method of claim 3 , wherein the voltage provided by the upper plate and the static magnetic field provided by the magnetic layer are determined according to one or more of the following:
the used nanomaterial, an area of the nanomaterial, a thickness of the nanomaterial, and a switching sensitivity.

5. A terminal comprising: the control device of claim 1 .

6. A computer-readable storage medium storing program instructions to implement the method of claim 3 when the program instructions are executed.

Assignees

• Zte Corp

Inventors

• Li Jun

Classifications

• G02F2202/36

  Micro- or nanomaterials · CPC title

• H04M1/02

  Constructional features of telephone sets · CPC title

• G02F1/091 Primary

  based on magneto-absorption or magneto-reflection · CPC title

• G02F1/133

  Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36) · CPC title

• G02F1/13

  based on liquid crystals, e.g. single liquid crystal display cells · CPC title