Abstract: A portable terminal according to an embodiment of the present invention includes: a front surface cover; a pressure detecting unit disposed on a side surface part of the portable terminal and configured to detect a touch pressure applied to the side surface part; and a side surface touch detecting unit configured to detect a touch input on to the side surface part of the portable terminal, wherein the side surface part includes a first region and a second region separate from the first region, the pressure detecting unit is disposed in the first region of the side surface part, and at least a portion of the side touch detecting unit is disposed between a lower portion of the front surface cover and the second region.

Abstract: A touch input device capable of detecting a touch force may be provided that includes a display panel on which a strain gauge is directly formed. The touch input device detects the touch force on the basis of a change of a resistance value of the strain gauge.

Abstract: An object action control system which performs a method for controlling the object action on the basis of a single touch or multiple touches may be provided that includes: a touch panel; a touch sensing module which recognizes a single touch or multiple touches on the touch panel by at least one input means; a change sensing module which senses at least any one of a pressure magnitude, area and time period of the touch on the touch panel by the input means which has applied the single touch and multiple touches; and an action module which performs different actions of one object in accordance with the single touch or multiple touches in conformity with a predetermined action standard.

Abstract: In one embodiment, the invention can be a touch input device capable of unlocking a passcode accordance with a touch pressure. The device can include a touch screen which displays a passcode input window; a controller which generates a first control signal as to whether or not a touch on the passcode input window matches a predetermined passcode; and a memory which stores the predetermined passcode. The passcode input window can include a plurality of nodes which are disposed in different positions. The number of touched nodes among the plurality of nodes, the order of the touched nodes among the plurality of nodes, and a pressure level of the touch on each of the touched nodes among the plurality of nodes can be set as the predetermined passcode. Further, the pressure level of the touch can be classified into at least two levels.

Abstract: A method for temporarily manipulating an operation of an object in accordance with a touch pressure or a touch area may be provided. The method includes: operating the object at a first state; detecting at least one of a magnitude of the touch pressure and a size of the touch area when the touch is input to a touch panel; operating the object at a second state of a first operation according to at least one of the magnitude of the touch pressure and the size of the touch area; and operating the object at the first state when the touch is released.

Abstract: In one embodiment, a touch input device includes a touch screen and is configured to perform mutually different operations with respect to a first touch and a second touch on the touch screen. The first touch is maintained during a time period equal to or greater than a first time period, wherein the first touch is maintained at a pressure less than a first pressure within the first time period. The second touch has a time interval having a pressure greater than the first pressure within the first time period. The first pressure is controlled and set by an input to the touch screen.

Abstract: A virtual touch pad operation method includes: determining whether or not a hovering input or a touch input to a touch screen meets a predetermined condition; entering a virtual touch pad mode when the hovering input or the touch input meets the predetermined condition; and operating a virtual touch pad. A terminal includes: a touch screen; and a controller which controls a hovering input or a touch input to the touch screen and displays a virtual touch pad on a portion of the touch screen by the hovering input, or the terminal includes: a touch screen, and a controller which distinguishes a touch input to a virtual touch pad in accordance with a pressure magnitude or area of the touch and controls the operation of the virtual touch pad. The virtual touch pad is formed on a portion of the touch screen by the touch input satisfying a predetermined condition.

Abstract: A method for transmitting emotions in accordance with a touch pressure, a touch area and a touch time period may include: determining characteristics of a message; detecting at least one of the magnitude of the touch pressure, touch area, and touch time period of the touch when the touch is input to a touch screen of a sender's terminal; changing state information of the characteristics in accordance with at least one of the detected magnitude of the touch pressure, touch area, and touch time period of the touch; and transmitting the message including the changed state information.

Abstract: A touch input device capable of detecting a touch force may be provided that includes a display panel on which a strain gauge is directly formed. The touch input device detects the touch force on the basis of a change of a resistance value of the strain gauge.

Abstract: A method for changing the size and color of a character in a touch input device including a controller and a touch input unit may be provided. The method includes: selecting, by the controller, a predetermined character in a display of the touch input unit; generating, by the controller, a pop-up window for changing at least one of the color and size of the selected predetermined character and displaying the generated pop-up window on the display; and changing, by the controller, at least one of the color and size of the selected character into at least one of the color and size selected by an object, and displaying the changed character on the display.

Abstract: In one embodiment, the invention can be a touch input device capable of unlocking a passcode accordance with a touch pressure. The device can include a touch screen which displays a passcode input window; a controller which generates a first control signal as to whether or not a touch on the passcode input window matches a predetermined passcode; and a memory which stores the predetermined passcode. The passcode input window can include a plurality of nodes which are disposed in different positions. The number of touched nodes among the plurality of nodes, the order of the touched nodes among the plurality of nodes, and a pressure level of the touch on each of the touched nodes among the plurality of nodes can be set as the predetermined passcode. Further, the pressure level of the touch can he classified into at least two levels.

Abstract: In one embodiment, a touch input device includes a touch screen and is configured to perform mutually different operations with respect to a first touch and a second touch on the touch screen. The first touch is maintained during a time period equal to or greater than a first time period, wherein the first touch is maintained at a pressure less than a first pressure within the first time period. The second touch has a time interval having a pressure greater than the first pressure within the first time period. The first pressure is controlled and set by an input to the touch screen.

Abstract: A touch input device performing a feedback according to a touch level may be provided that includes; a touch screen which displays a passcode input window; a controller which generates a first control signal as to whether or not a touch on the passcode input window matches a predetermined passcode, and determines a touch level among a plurality of touch levels by using at least one of a pressure magnitude, area and time period of the touch; and a memory which stores the predetermined passcode. The touch level is set to the predetermined passcode.

Abstract: A method for distinguishing a touch type in a touch input device including a touch screen may be provided that includes: determining whether a touch on the touch screen includes a time interval during which the touch has a pressure greater than a first pressure within a first time period; and distinguishing the touch type in accordance with whether or not the touch includes a time interval during which the touch has a pressure greater than the first pressure within the first time period.

Abstract: A method for distinguishing a touch type in a touch input device including a touch screen may be provided that includes: determining whether a touch on the touch screen includes a time interval during which the touch has a pressure greater than a first pressure within a first time period; and distinguishing the touch type in accordance with whether or not the touch includes a time interval during which the touch has a pressure greater than the first pressure within the first time period.

Abstract: A method for transmitting emotions in accordance with a touch pressure, a touch area and a touch time period may include: determining characteristics of a message; detecting at least one of the magnitude of the touch pressure, touch area, and touch time period of the touch when the touch is input to a touch screen of a sender's terminal; changing state information of the characteristics in accordance with at least one of the detected magnitude of the touch pressure, touch area, and touch time period of the touch; and transmitting the message including the changed state information.

Abstract: A method for temporarily manipulating an operation of an object in accordance with a touch pressure or a touch area may be provided. The method includes: operating the object at a first state; detecting at least one of a magnitude of the touch pressure and a size of the touch area when the touch is input to a touch panel; operating the object at a second state of a first operation according to at least one of the magnitude of the touch pressure and the size of the touch area; and operating the object at the first state when the touch is released.

Abstract: An object action control system which performs a method for controlling the object action on the basis of a single touch or multiple touches may be provided that includes: a touch panel; a touch sensing module which recognizes a single touch or multiple touches on the touch panel by at least one input means; a change sensing module which senses at least any one of a pressure magnitude, area and time period of the touch on the touch panel by the input means which has applied the single touch and multiple touches; and an action module which performs different actions of one object in accordance with the single touch or multiple touches in conformity with a predetermined action standard.

Abstract: A touch input device performing a feedback according to a touch level may be provided that includes: a touch screen which displays a passcode input window; a controller which generates a first control signal as to whether or not a touch on the passcode input window matches a predetermined passcode, and determines a touch level among a plurality of touch levels by using at least one of a pressure magnitude, area and time period of the touch; and a memory which stores the predetermined passcode. The touch level is set to the predetermined passcode.

Abstract: A virtual touch pad operation method includes: determining whether or not a hovering input or a touch input to a touch screen meets a predetermined condition; entering a virtual touch pad mode when the hovering input or the touch input meets the predetermined condition; and operating a virtual touch pad. A terminal includes: a touch screen; and a controller which controls a hovering input or a touch input to the touch screen and displays a virtual touch pad on a portion of the touch screen by the hovering input, or the terminal includes: a touch screen, and a controller which distinguishes a touch input to a virtual touch pad in accordance with a pressure magnitude or area of the touch and controls the operation of the virtual touch pad. The virtual touch pad is formed on a portion of the touch screen by the touch input satisfying a predetermined condition.