摘要:
A surface capacitive touch panel, a driving method thereof, a display apparatus using the same, and an electronic apparatus using the same are provided. The surface capacitive touch panel includes a substrate, a conductive film, and a plurality of driving sensing electrodes. The conductive film is formed on the substrate. The conductive film has an anisotropy of impedance to define a lower impedance direction and a higher impedance direction. The driving sensing electrodes are disposed on at least one side of the conductive film and the at least one side is substantially perpendicular to the lower impedance direction. The surface capacitive touch panel of the invention has high positioning accuracy. The touch sensing accuracy of the display apparatus and the electronic apparatus using the surface capacitive touch panel is also desirable.
摘要:
A touch panel includes an insulating substrate, a rectangular transparent conductive layer and a number of electrodes. The insulating substrate has two opposite surfaces. The rectangular transparent conductive layer, fixed on one of the surfaces of the insulating substrate, has two opposite long sides and two opposite short sides. The electrodes are disposed at the short sides of the rectangular transparent conductive layer with a regular interval and electrically connected to the rectangular transparent conductive layer. The rectangular transparent conductive layer further has anisotropic impedance and defines an impedance direction substantially perpendicular to the short sides of the rectangular transparent conductive layer.
摘要:
An apparatus and a method for controlling a touch panel are disclosed herein, the apparatus includes an object detection module and an adjusting device. The object detection module can detect a position of at least one object contacting the touch panel. A position analyzer recognizes position of the object and the adjusting device can set the touch panel to a predetermined position according to the result recognized by the position analyzer.
摘要:
A multi-touch detecting method is adapted for detecting locations of touched points on a touch panel including first and second conductive films, and includes following steps. First measuring points of the first conductive film distributed along X-axis of a Cartesian plane are scanned, and x-components are determined accordingly. Second measuring points of the second conductive film distributed along Y-axis of the Cartesian plane are scanned, and y-components are determined accordingly. A first voltage is applied to the first conductive film, and A second voltage is applied to at least one of the second measuring points with the location on the Y-axis adjacent to or overlapping one of the y-components. Voltages at the first measuring points with the locations on the X-axis adjacent to or overlapping the x-components are measured sequentially and one of the y-components and one of the x-components are outputted.
摘要:
A driving method and apparatus of a touch panel are provided. The touch panel includes a conductive layer with anisotropic conductivity. The method includes the following steps. An electrode pair is selected one by one in a plurality of electrode pairs. Each of the electrode pairs includes a first electrode and a second electrode. The first electrodes are disposed on a first side of the conductive layer, and the second electrodes are disposed on a second side of the conductive layer. When an electrode pair of the electrode pairs is selected, the first electrode and the second electrode of the selected electrode pair are driven one by one.
摘要:
A capacitive touch panel includes a substrate; a transparent conductive layer with anisotropic impedance located on the substrate; a plurality of driving sensing electrodes located on the opposite two sides of the transparent conductive layer; at least one sensing unit connected to the plurality of driving sensing electrodes for scanning the plurality of driving sensing electrodes; at least one voltage compensation unit which provides a offset voltage, at least one voltage compensation unit has a first end and a second end, the first end of at least one voltage compensation unit is at least connected to one of the plurality of driving sensing electrodes, the second end of at least one voltage compensation unit is connected to a grounding voltage. The present application also relates to a driving method for preventing leakage current of the capacitive touch panel.
摘要:
A method and a driving apparatus for identifying a sensing value of a touch panel are provided. The method includes sensing a plurality of electrodes of the touch panel to obtain raw data and baseline data of each electrode, wherein an electrode Si denotes an ith electrode of the electrodes in the touch panel. A sensing value of the electrode Si is calculated in accordance with the raw data and the baseline data of the electrode Si. When sensing values of all electrodes Si are smaller than a threshold value, the baseline data of the electrode Si is updated in accordance with the raw data of the electrode Si. When a sensing value of any one electrode Si of the electrodes is larger than the threshold value, the baseline data of the electrodes is suspended from being updated.
摘要:
A touch panel and a differential detection method thereof are disclosed. A controller provides a driving signal to the i-th scan electrode. During providing the driving signal to the i-th scan electrode, the controller senses the feature difference value between two neighbouring sensing electrodes within the plural sensing electrodes, and senses the feature difference value ΔCi between the k-th sensing electrode within the sensing electrodes and a reference feature value, in which the feature difference values between the j-th sensing electrode and the (j+1)-th sensing electrode is represented by ΔC(i,j). The controller set the feature value of a base sensing point within a plurality of sensing points of the touch panel as a base feature value, and use the base feature value, the feature difference values ΔCi and the feature difference values ΔC(i,j) to calculate the feature values of the sensing points.
摘要:
A method for detecting a touch spot of the touch panel includes the following steps. The electrode pairs are scanned along the impedance direction for determining a first coordinate. A number of electrode pairs near the first coordinate are selected to obtain an electrode pair signal. The first driving electrodes of the selected electrode pairs are scanned to obtain a first signal. The second driving electrodes of the selected electrode pairs are scanned to obtain a second signal. A second coordinate is determined according to the electrode pair signal, first signal, and second signal. Finally, the touch spot is determined according to the first coordinate, and second coordinate.
摘要:
The present invention relates to a touch panel. The touch panel includes a sensor, an optically clear adhesive layer, and a cover lens. The sensor has a surface. The optically clear adhesive layer is located on the surface of the sensor. The cover lens is located on a surface of the optically clear adhesive layer. The touch panel defines two areas: a touch-view area and a trace area. A space is defined between the sensor and cover lens in the trace area. The space is filled with dielectric material with a permittivity less than a permittivity of the optically clear adhesive layer.