Abstract:
A touch panel. A top transparent substrate includes a top conductive film on its lower surface. A bottom transparent substrate includes a bottom conductive film on its upper surface. An insulating spacer is located between the two conductive films to separate the top conductive film and the bottom conductive film. A plurality of sensing lines, are each disposed on an edge of the top or bottom conductive film and separated from other conductive films or other sensing lines by an adhesive. At least one grounding loop isolated from the top and bottom conductive films by an insulating region, wherein the grounding loop is electrically coupled to an external ground terminal.
Abstract:
A method of improving a polysilicon film crystallinity in a sequential lateral solidification process is provided. A mask having a main pattern portion and a compensating pattern portion is provided. The main pattern portion defines a laser beam pattern scanning and transforming an amorphous silicon film into a polysilicon film. The compensating pattern portion adjacent to the main pattern portion adjusts the energy of the laser beam injected to the polysilicon film to improve the grain shape thereof.
Abstract:
A driving circuit of a touch panel is formed by the photolithographic process on the liquid crystal display (LCD) panel to reduce the area of the driving circuit. The method includes providing an LCD panel having a common substrate; and forming a touch panel on the common substrate. First, a first conducting layer is formed on the common substrate, and then a second patterned conducting layer is formed on the first conducting layer and on a peripheral region of the LCD panel by a photolithographic process. The common substrate of the LCD panel is used as an upper substrate of the LCD panel and as a lower substrate for the touch panel.
Abstract:
A pixel structure and its driving method, which are used in the active matrix organic illuminated displays, are described. The pixel structure has four transistors, a capacitor and three signal lines. The first and second transistors are used as the switching transistors and controlled by the first and second scan lines, respectively. The third and fourth transistors together constitute a current mirror to equalize the current flows through the OLED in each pixel and the writing in current in the data line. Therefore, the illumination of the OLED between each pixel will be more uniform and is not influenced by the threshold voltage.
Abstract:
To satisfy the different requirement of TFTs function as peripheral driving circuit and pixel switching device, the modified TFT structure with various thicknesses of gate insulating layers is disclosed. For the peripheral driving circuit, the thinner thickness of the gate-insulating layer is formed, the higher driving ability the TFT performs. However, for the pixel switching device, the thicker thickness of the gate insulating layer is formed, the better reliability the TFT has. The present invention provides a first TFT (peripheral driving circuit) comprising a first gate insulating layer and a second TFT (pixel switching device) comprising a first and second gate insulating layer. Thus, the gate insulating layer of the peripheral driving circuit has a thickness less then that of the pixel switching device.
Abstract:
A low-temperature polysilicon thin film transistor having a buried LDD structure is provided. Two heavily doped regions are formed in a semiconductor layer and distributed just below a surface of the semiconductor layer. Two LDD regions are both sandwiched between the two heavily doped regions in a direction substantially parallel to the surface of semiconductor layer, and separated from the surface of the semiconductor layer by a portion of the semiconductor layer. The process for producing such a thin film transistor is also provided. A first, a second and a third doping materials are injected into a semiconductor layer in different directions to form heavily doped regions and LDD regions.
Abstract:
A method of fabricating an array of structures sensitive to ESD is disclosed. First, an array of structures is provided on a substrate, with the structures conductively coupled by interconnections. Thereafter, the interconnections are removed before fabricating another array of structures. Therefore, the structures have equal potential. Further, an electrostatic discharge structure is provided near the periphery of the substrates.
Abstract:
The present invention provides a color liquid crystal display device in which a color filter layer is formed on an array substrate. The array substrate includes a scan line and a data line forming a pixel, on which a thin film transistor is formed, and a pixel electrode is connected to the thin film transistor. A black matrix layer is formed on the array substrate. A black matrix frame is formed around the periphery of the black matrix layer. A color filter layer is formed on the array substrate and the black matrix layer, and extends to cover the black matrix frame.
Abstract:
A transflective liquid crystal display has a plurality of pixel electrode layers corresponding to a plurality of color elements. A first pixel electrode layer has a first reflective region and a first transmissive region. A second pixel electrode layer has a second reflective region and a second transmissive region. A third pixel electrode layer has a third reflective region and a third transmissive region. The first reflective region is larger than the second reflective region, and the first reflective region is larger than the third reflective region.
Abstract:
A voltage level shifter includes a front stage circuit periodically generating a first control signal and a second control signal in response to a first input clock signal and a second input clock signal complementary to the first input clock signal; a switch circuit including two PMOS transistors connected between a maximum voltage and a minimum voltage in series, wherein a third control signal is outputted from a conjunction of the two PMOS transistors, and the first and second control signals are coupled to the gate electrodes of the two PMOS transistors, respectively; and a driving circuit receiving the third control signal and outputting an output clock signal having a peak-to-peak value larger than a peak-to-peak value of the input clock signal. The voltage level shifter is implemented by essentially PMOS transistors.