Mobile terminal and method for controlling the same

Patent metadata

Field	Value
Publication number	US-2016147371-A1
Application number	US-201514952695-A
Country	US
Kind code	A1
Filing date	Nov 25, 2015
Priority date	Nov 25, 2014
Publication date	May 26, 2016
Grant date	—

Abstract

A mobile terminal includes a display; a touch sensor coupled to the display, the touch sensor including a first sensor and a second sensor; a driving unit configured to supply power to drive the display; and a touch controller configured to: cause the driving unit to enter an inactive state when a lighting of the display is turned off; recognize a touch input applied to the display by sensing, via the first or second sensor, the touch input applied while the lighting of the display is off; cause the driving unit to enter an active state in response to the touch input, the active state maintained while the lighting of the display is on; and obtain touch coordinates of the touch input using input from both the first sensor and the second sensor together when the driving unit enters the active state.

First claim

What is claimed is:

1 . A mobile terminal comprising:
a display; a touch sensor coupled to the display, the touch sensor including a first sensor and a second sensor; a driving unit configured to supply power to drive the display; and a touch controller configured to:
cause the driving unit to enter an inactive state when a lighting of the display is turned off;
recognize a touch input applied to the display by sensing, via the first or second sensor, the touch input applied while the lighting of the display is off;
cause the driving unit to enter an active state in response to the touch input, the active state maintained while the lighting of the display is on; and
obtain touch coordinates of the touch input using input from both the first sensor and the second sensor together when the driving unit enters the active state.

2 . The mobile terminal of claim 1 , wherein a pulse voltage is applied to only one of the first and second sensors when the driving unit is in the inactive state.

3 . The mobile terminal of claim 2 , wherein a pulse voltage is applied to both the first and second sensors when the driving unit enters the active state from the inactive state.

4 . The mobile terminal of claim 3 , wherein a pulse voltage of the first sensor is applied by the touch controller, and a pulse voltage of the second sensor is applied by the driving unit, which enters the active state, based on sensing of the touch input using the first sensor.

5 . The mobile terminal of claim 1 , wherein:
the display is turned on in response to a user gesture including at least the touch input; and the touch controller is further configured to determine whether the user gesture is applied based on coordinate information of the touch input and coordinate information of at least one second touch input that is applied while the display is off.

6 . The mobile terminal of claim 5 , wherein:
each of the touch input and the at least one second touch input is a tapping applied to the display; and the user gesture is specified based on at least one of a region of the display where the tapping is applied, a time interval between each of a plurality of tapping, or a number of the plurality of tapping.

7 . The mobile terminal of claim 5 , further comprising a controller configured to control the mobile terminal in combination with at least one of the display, the touch controller, or the driving unit,
wherein the controller is further configured to be operated in a sleep mode when the lighting of the display is turned off, and to enter an active mode in response to the user gesture.

8 . The mobile terminal of claim 7 , wherein the controller is further configured to turn on the lighting of the display upon entering the active mode.

9 . The mobile terminal of claim 7 , wherein:
the user gesture includes a plurality of user gestures which are specified by a position where the touch input and the at least one second touch input are applied; and the controller is further configured to:
execute a first application when a first user gesture among the plurality of user gestures is applied; and
execute a second application when a second user gesture among the plurality of user gestures is applied.

10 . The mobile terminal of claim 1 , wherein:
the driving unit includes a memory in which initialization setting information associated with an initialization operation of the driving unit is stored; and the driving unit is further configured to perform the initialization operation using the initialization setting information stored in the memory upon entering the active state when the touch input is recognized by the touch controller.

11 . A display unit for a mobile terminal, the display unit comprising:
a display; a touch sensor configured to sense a touch input applied to the display while a lighting of the display is off; a driving unit configured to supply power to drive the display unit; and a touch controller configured to:
recognize the sensed touch input;
enter an inactive state when the lighting of the display is turned off; and
maintain an active state while the lighting of the display is on,
wherein the driving unit is further configured to:
cause the touch controller to enter the active state when the touch input is recognized; and
cause transmission of information associated with the touch input to the touch controller, and
wherein the touch controller in the active state is configured to detect coordinate information of the touch input, using the information associated with the touch input.

12 . The mobile terminal of claim 11 , further comprising a converter unit configured to supply an output voltage to the driving unit,
wherein the driving unit is further configured to control the output voltage to receive a preset pulse voltage from the converter unit when the lighting of the display is turned off.

13 . A method for controlling a mobile terminal including a display having a first touch sensor, a second touch sensor, a touch controller, and a driving unit, the method comprising:
causing the driving unit to enter an inactive state when a lighting of the display is turned off; recognizing, by the touch controller, a touch input applied to the display by sensing, via the first or second touch sensor, the touch input applied while the lighting of the display is off; causing, by the touch controller, the driving unit to enter an active state in response to the touch input, the active state maintained while the lighting of the display is on; and obtaining, by the touch controller, touch coordinates of the touch input using the first and second touch sensors together when the driving unit enters the active state.

14 . The method of claim 13 , further comprising:
determining whether a user gesture is applied based on coordinate information of the touch input and coordinate information of at least one second touch input that is applied to the display while the display is off; and turning on the lighting of the display in response to the user gesture.

15 . The method of claim 14 , wherein the mobile terminal further includes a controller configured to control the mobile terminal in combination with at least one of the display, the touch controller, or the driving unit, the method further comprising:
operating the controller in a sleep mode when the driving unit enters an inactive mode; and causing the controller in the sleep mode to enter an active mode in response to the user gesture.

Assignees

• Lg Electronics Inc

Inventors

• Jin Dongchul
• Kwak Haengchul
• Lee Youngsok
• Ahn Yehan

Classifications

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F3/044

  by capacitive means · CPC title

• H04M1/7243 Primary

  with interactive means for internal management of messages · CPC title

• H04M1/72454

  according to context-related or environment-related conditions · CPC title