Electronic device with a touch sensitive panel, method for operating the electronic device, and display system

Abstract

An electronic device having a first part, a second part, and a touch sensitive panel disposed on the second part has an opened and a closed state, and the touch sensitive panel is covered by the first part in the closed state. The electronic device includes a sensor circuit, a touch simulation facility and a comparator. The sensor circuit is for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected. The touch simulation facility is for evoking a touch signal at a position of the touch sensitive panel, and includes a touch simulation element which in the closed state of the electronic device is arranged opposite the touch sensitive panel. The comparator is for comparing the touch signal with a reference value corresponding to the touch simulation element and for generating a correction signal for adjusting a setting of the sensor circuit for compensation of a difference detected between the position where the touch signal is evoked and the position indicated by the touch signal.

What is claimed is: 
     
         1 . An electronic device having a first part, a second part, and a touch sensitive panel disposed on the second part, said electronic device being arrangeable during use into one of at least an opened and a closed state, the touch sensitive panel covered by the first part in the closed state, said electronic device comprising
 a sensor circuit for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected;   a touch simulation facility for evoking a touch signal at least one position of said touch sensitive panel, wherein said touch simulation facility comprises at least one touch simulation element which in the closed state of the electronic device is arranged opposite said touch sensitive panel; and   a comparator for comparing a touch signal of the sensor circuit with a reference value corresponding to the at least one touch simulation element and for generating a correction signal (Scal) for adjusting a setting of the sensor circuit for compensation of a difference detected between the position of said touch sensitive panel where the touch signal is evoked and the position indicated by the touch signal.   
     
     
         2 . The electronic device as claimed in  claim 1 , wherein the at least one touch simulation element is a protrusion that mechanically simulates a touch event in the closed state. 
     
     
         3 . The electronic device as claimed in  claim 1 , wherein the at least one touch simulation element comprises an actuator for mechanically simulating a touch event in the closed state. 
     
     
         4 . The electronic device as claimed in  claim 1 , wherein the at least one touch simulation element is an electrically conducting element that electrically simulates a touch event in the closed state. 
     
     
         5 . The electronic device as claimed in  claim 1 , wherein the touch sensitive panel ( 10 ) is rollable. 
     
     
         6 . The electronic device as claimed in  claim 1 , wherein the touch sensitive panel ( 10 ) is wrappable. 
     
     
         7 . The electronic device as claimed in  claim 1 , wherein the first and the second part ( 4 ) that are mutually connected via a hinge, and wherein at least one of the first and the second part is provided with said at least one touch sensitive panel and at least the other one of the first and the second part is provided with said at least one touch simulation element. 
     
     
         8 . The electronic device as claimed in  claim 7 , wherein said second part comprises sub-parts that are connected to each other via a hinge and wherein in the closed state of the electronic device the first part is arranged between said sub-parts. 
     
     
         9 . The electronic device as claimed in  claim 7 , wherein the first part ( 2 ) is movably coupled to the second part by the hinge. 
     
     
         10 . The electronic device as claimed in  claim 7 , wherein the first part ( 2 ) is slidably coupled to the second part. 
     
     
         11 . The electronic device as claimed in  claim 7 , wherein said first part comprises a keyboard. 
     
     
         12 . The electronic device as claimed in  claim 1 , wherein the touch simulation facility is arranged to detect whether the electronic device is in the opened or the closed state. 
     
     
         13 . The electronic device as claimed in  claim 1 , further comprising a dexterity compensation unit, for compensating a deviation in an indicated position dependent on a dexterity of the user. 
     
     
         14 . The electronic device as claimed in  claim 1 , wherein said at least one touch simulation element is arranged in or on a lateral portion in the touch sensitive panel, and wherein said at least one touch simulation element in a rolled up or wrapped up state of the electronic device is arranged opposite another lateral portion of said touch sensitive panel. 
     
     
         15 . A display system comprising an electronic device as claimed in  claim 1  and further comprising at least one display panel. 
     
     
         16 . The electronic device as claimed in  claim 15 , wherein the touch sensitive panel is integrated with the display panel. 
     
     
         17 . The electronic device as claimed in  claim 15 , arrangeable during use in one of a plurality of states, wherein the touch simulation facility comprises a state estimation facility for detecting said arranged one of the states, and for providing a status signal indicative of said detected state, the display system comprising a display driver that drives the display panel according to the detected state. 
     
     
         18 . A method for calibrating a touch sensitive panel of an electronic device with a sensor circuit for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected, the electronic device being arrangeable during use in one of at least a closed and an opened state, the method comprising the steps of
 arranging the electronic device in its closed state, wherein the electronic device has a first part, a second part, and a touch sensitive panel disposed on the second part, and the touch sensitive panel is covered by the first part in the closed state,   evoking a touch signal at least one position of said touch sensitive panel by a touch simulation facility that comprises at least one touch simulation element which in the closed state of the electronic device is arranged opposite said touch sensitive panel.   
     
     
         19 . The method as claimed in  claim 18 , wherein the touch sensitive panel is integrated in a display panel.