Patent Document ID: 9298278
Application ID: 13777384

Base Claim:
1. A touch sensitive display device, comprising: a display unit configured to display a graphic user interface; a sensor unit configured to sense a contact with the display unit; and a controller configured to control the display unit and the sensor unit, wherein the graphic user interface comprises a first area of a virtual keyboard and a second area of a digital content containing at least one text, wherein the controller: detects a first contact in the first area; displays and moves a word-selecting interface according to the first contact moving from the first area to the second area, converts at least one word within the at least one text to at least one soft button, the at least one word overlapped by the word-selecting interface in the digital content, displays the at least one soft button, the at least one soft button including the converted at least one word respectively, detects a second contact selecting a soft button among the at least one soft button, and inputs a word corresponding to the soft button into a text input box.

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Claim 7:
7. The touch sensitive display device of claim 1 , wherein if the first contact is detected from a number key area of the virtual keyboard of the first area, the controller preferentially displays a word of high frequency of use in the digital content as the at least one soft button.