Apparatus with touch screen and method for displaying information through external display device connected thereto
First Claim
1. An apparatus having a touch screen including a touch pad, comprising:
- a connector for connecting the apparatus to an external display device;
a sensor for generating a sensing signal upon detecting a connection between the apparatus and the external display device;
a touch screen display driver for displaying data input from the touch pad on the touch screen;
an external display driver for displaying touch pad data on the external display device and; and
a controller for, upon receiving the sensing signal, setting a mouse pad operation mode where data input from the touch pad of the touch screen are displayed only on the external display device, not on the touch screen, enabling the external display driver, and setting a screen shift access mode by a specific key input from a user for changing a size of a screen to be displayed at a specific ratio in the mouse pad operation mode,wherein the controller recognizes a point on the touch pad selected by the user, generates a coordinate value corresponding to the point, calculates for mapping the coordinate value with a screen display coordinate of the external display device according to the specific ratio, and determines a position of a pointer to be displayed on a screen of the external display device.
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Accused Products
Abstract
There is provided an apparatus with a touch screen including a touch pad. The apparatus includes a connecter for connecting the apparatus to an external display device; a sensor for generating a sensing signal upon detecting connection between the apparatus and the external display device; a touch screen display driver for displaying data input from the touch pad on the touch screen; an external display driver for displaying data input from the touch pad on the external display device when the touch pad operates in a mouse pad mode; and a controller for upon receiving the sensing signal, disabling the touch screen display driver, enabling the external display driver, recognizing a point on the touch pad selected by a user, generating a coordinate value corresponding to the point, performing calculation for mapping the coordinate value with a screen display coordinate of the external display device, and determining a position of a pointer to be displayed on a screen of the external display device.
103 Citations
9 Claims
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1. An apparatus having a touch screen including a touch pad, comprising:
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a connector for connecting the apparatus to an external display device; a sensor for generating a sensing signal upon detecting a connection between the apparatus and the external display device; a touch screen display driver for displaying data input from the touch pad on the touch screen; an external display driver for displaying touch pad data on the external display device and; and a controller for, upon receiving the sensing signal, setting a mouse pad operation mode where data input from the touch pad of the touch screen are displayed only on the external display device, not on the touch screen, enabling the external display driver, and setting a screen shift access mode by a specific key input from a user for changing a size of a screen to be displayed at a specific ratio in the mouse pad operation mode, wherein the controller recognizes a point on the touch pad selected by the user, generates a coordinate value corresponding to the point, calculates for mapping the coordinate value with a screen display coordinate of the external display device according to the specific ratio, and determines a position of a pointer to be displayed on a screen of the external display device. - View Dependent Claims (2, 3)
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4. A method for displaying on a screen of an external display device information input on a PDA (Personal Digital Assistant) having a touch screen, comprising:
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determining if the PDA is connected to the external display device; switching a touch screen operation mode to a mouse pad operation mode, upon detection of a connection between the PDA and the external display device; accessing a screen display coordinate of the external display device according to touch panel coordinate data input by the touch pad of the touch screen; setting a screen shift access mode, if a user inputs a specific key for changing a size of a screen to be displayed at a specific ratio in the mouse pad operation mode where data input from the touch pad of the touch screen are displayed only on the external display device, not on the touch screen; calculating for mapping a coordinate value with a screen display coordinate of the external display device according to the specific ratio; and determining a position of a pointer to be displayed on a screen of the external display device. - View Dependent Claims (5, 6, 7, 8, 9)
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Specification