The invention provides a display device which improves the shape of the contact region while increasing yield and reducing product cost. A contact region is a region between signal lines, and is a region following a scan line so as to include either a part of or an entire of the pixel electrode edge region following the scan line connected to the switching element. The pixel electrode is connected to the source electrode in this region. The contact hole may be rectangular, and a plurality of contact holes may be provided. Also, if C.sub.X is the parasitic capacitance between the pixel electrode and the source electrode when a bad contact exists between said pixel electrode, C.sub.0MAX is the maximum value of the pixel capacitance held by the pixel electrode when said bad contact does not exist, V.sub.LCMIN is the voltage when the transmissivity at a pixel position is a minimum, and V.sub.LCMAX is the voltage when the transmissivity is a maximum, a capacitance ratio RA.sub.C1 is set such that the following relationship is established: RA.sub.C1 =C.sub.X /C.sub.0MAX >V.sub.LCMAX /(V.sub.LCMIN -V.sub.LCMAX). The invention thereby apparently eliminates a pixel defect of a bad contact.
(Purpose) There is provided with an illumination device for LCD device according to the invention to flow the same electric current through lamps on the same driving voltage, resluting in a long life of said illumination device.(Means of Solution) The device has a light guide plate 10, three or more light sources 11, 12 and 13 provided around at least one of side ends of the light guide plate 10, and a light reflection member 19, surrounding these light sources, to reflect light emitted from the light sources to the light guide plate 10. The light sources 11, 12 and 13 are located so as to have the same parasitic capacitance caused by intervals between the light sources and the light reflection member 19.
A method for forming an electrode in a plasma display panel, which simplify fabrication steps of a metal electrode and a transparent electrode and prevent bubbles from being generated due to reaction between the metal electrode and a dielectric layer, includes the steps of forming a metal oxide layer on a transparent substrate in a predetermined pattern, etching a surface of the metal oxide layer to form an uneven portion, and chemical plating a surface of the uneven portion to form a metal electrode.
A switching electrode connected to a switching element is provided on a first substrate. An opposing electrode, an insulation film, and a plurality of sub electrodes are provided on a second substrate. Moreover, a resistant film is provided on a first substrate. A switching electrode which is connected to the switching element and an electrode which is not connected to the switching element are provided on the resistant film. An opposing electrode which is not connected to the switching element is provided on the second substrate. Furthermore, a first electrode which is connected to a first switching element and a third electrode which is not connected to the switching element are provided on the first substrate. The first and third electrodes are opposed to the second electrode, which is connected to a second switching element, via an insulator. The opposing electrode which is not connected to the switching element is provided on the second substrate. Thus, a liquid crystal display device can achieve fast response and even display without a blurred moving image.
This invention provides a slipcover touch input apparatus and structure for displays for computing devices that converts a non-touch screen display to a touch screen display. The slipcover assembly acts as a sheath or cover for the display, and the touch screen is mounted in a window or opening of the casing of the display so that the touch screen is oriented to mimic the position of the display. This touch screen slipcover can convert any display of a computing device into a touch screen display.
A small semiconductor display device of low power consumption and with high definition/high resolution/high image quality is provided. The semiconductor display device according to the present invention comprises a pixel matrix circuit, a data line driver circuit and scanning line driver circuits, and these components are formed on the same substrate using a polycrystalline TFT. The fabricating method of the device which includes a process for promoting crystallization by a catalytic element and a process for gettering the catalytic element provides the semiconductor display device with high definition/high resolution/high image quality while it is small in size.
