ELECTRONIC PAPER WITH MODE SWITCH UNIT

• US 20130333023A1
• Filed: 06/12/2013
• Published: 12/12/2013
• Est. Priority Date: 06/12/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Sung-Jin, LEE, Jong-In, KANG, Seong-Woon, KIM, Young-Woong, LEE, Kyu-Suk, CHA, Kyung-Hoon
• Granted Patent: US 9,268,925 B2
• Time in Patent Office: Days
• US Class Current: 726/19
• CPC Class Codes: G06F 21/31 User authentication
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/046 by electromagnetic means
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/08 Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
• CPC Class Codes: G09G 2310/0245 Clearing or presetting the whole screen independently of waveforms, e.g. on power-on G09G2310/063 takes precedence
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2380/14 Electronic books and readers
• CPC Class Codes: G09G 3/035 for flexible display surfaces
• CPC Class Codes: G09G 3/344 based on particles moving in a fluid or in a gas, e.g. electrophoretic devices electrophoretic devices per se G02F1/167

Abstract

Provided is electronic paper that includes an imaging sheet for displaying content, a memory for storing the content, a mode switch unit for manually setting an operation mode of the electronic paper, and a controller for performing at least one operation from a plurality of operations including encryption of the content stored in the memory, deletion of the content stored in the memory, deletion of content displayed on the imaging sheet from a screen, and display of a lock screen that requires input of a password on the imaging sheet, according to an operation mode that is set by a user using the mode switch unit.

Claims

1. Electronic paper comprising:

an imaging sheet configured to display content;

a memory configured to store the content;

a mode switch unit configured to manually set an operation mode of the electronic paper; and

a controller configured to perform at least one operation from a plurality of operations including encryption of the content stored in the memory, deletion of the content stored in the memory, deletion of content displayed on the imaging sheet from a screen, and display of a lock screen that requires input of a password on the imaging sheet, according to an operation mode that is set by a user using the mode switch unit.

2. The electronic paper of claim 1, wherein the mode switch unit comprises a plurality of mode switches that provide different operation modes.

3. The electronic paper of claim 1, wherein the mode switch unit comprises at least one mode switch that is switched to an on state from an off state when the at least one mode switch is cut.

4. The electronic paper of claim 1, wherein the controller disables at least some of internal circuits of the electronic paper.

5. The electronic paper of claim 1, wherein the mode switch unit comprises a plurality of level switches to which respective time limits are allocated, and

the controller performs the at least one operation after a sum of the allocated time limits of at least one of the level switches that are switched to the on state has elapsed.

6. The electronic paper of claim 1, wherein the controller performs the at least one operation if a strength of a signal received from outside is lower than a predetermined threshold value.

7. The electronic paper of claim 1, wherein the controller performs the at least one operation after display of a predetermined page of the content.

8. The electronic paper of claim 1, wherein the controller performs the at least one operation immediately without a waiting time, if the operation mode is set.