Abstract: The present invention relates to a projecting capacitive touch sensing device, display panel, and image display system. The projecting capacitive touch sensing comprises an array of a plurality of sensing units, each sensing unit including: a first electrode made of a sensing material, at least one second electrode made of a sensing material and being disposed around the peripheral of the first electrode, at least one first sensing axis electrically connected to the first electrode, and at least one second sensing axis electrically connected to the second electrodes. The first electrode is quadrangle, while the second electrodes are triangular-shaped. The first electrode and the plurality of second electrodes are arranged to form a rectangular, and a non-sensing area is defined between the first electrode and the second electrodes.

Abstract: The present invention relates to a level shifter receiving a control signal to produce a first and a second driving voltage, comprising a first and a second capacitor, and a first and a second self-bias circuit for respectively providing a supply path to couple to a direct current bias voltage source, and charging the first and the second capacitor, wherein the first and the second capacitor can boost the control signal to produce the first and the second driving voltage respectively. The present invention also provides an image display system, comprising an interface driver circuit that uses the first and the second driving voltage produced by the level shifter to generate a high-level voltage output signal.

Abstract: A source follower is disclosed. A driving transistor comprises a first gate receiving an input signal. An active load is connected to the driving transistor in series between a first voltage source and a second voltage source and coupled to the driving transistor at a first point. A first switch is coupled between the first voltage source and the first gate. A first capacitor is coupled to a second switch at a second point. A third switch is connected to the first capacitor at a third point and connected to the second switch and the first capacitor in series between the first gate and the second voltage source. A fourth switch is coupled between the third point and the first point. A fifth switch is coupled between the first point and a fourth point.

Abstract: Systems for displaying images. The system comprises a digital-to-analog converter, in which a first conversion stage selects first and second voltages of a plurality of reference voltages according to m most significant bits of a k bit input signal; and a second conversion stage converting n least significant bits of the k bit input signal to a voltage between the first and second voltages. In the second conversion stage, according to first and second bits of the least significant bits, a first switching capacitor unit charges a first capacitor during a first period and then the second switching capacitor unit performs a first charge sharing between the first capacitor and a second capacitor, and the first switching capacitor unit charges the first capacitor again and then the second switching capacitor unit performs a second charge sharing between the first capacitor and the second capacitor.

Abstract: A source-follower-type analogue buffer with an active load, a new compensating operation and a display with the source-follower-type analogue buffers are developed to reduce an error voltage which is the difference between an input voltage and an output voltage of the analogue buffer. The source-follower type analogue buffer can also minimize the variation from both the charging time and the device characteristics and maximize the range of the input voltage.