Abstract: A liquid crystal display device including a liquid crystal display panel, an illumination unit including a light-conducting plate having a protrusion protruded from a side surface of the light-conducting plate, and a housing having a bottom plate and a casing provided onto a bottom plate peripheral area for holding the light-conducting plate. A depression portion is formed to the casing of the housing. An inside of the bottom plate peripheral area is processed from roots of the end surfaces along the end surfaces so that a first slit which continues to the end surfaces is formed. The casing in a position separated from the end surfaces with a predetermined interval and an inside of the bottom plate peripheral area in this position are processed so that a second slit is formed.

Abstract: The object of the present invention is to prevent a light leakage from a boundary portion between the areas where the voltage to be applied to the liquid crystal varies, and reducing a light leakage on a contact hole provided for electrically connecting the first pixel electrode and the second pixel electrode in the case where the areas where the voltage to be applied to the liquid crystal varies are composed of two-layered pixel electrodes, namely, a first pixel electrode and a second pixel electrode.

Abstract: The object of the present invention is to provide a TFT array for obtaining a liquid crystal display apparatus of large screen size, of high aperture ratio, and of high precision without degrading the display quality through cross talks or shot blurs. The TFT array of the present invention is a TFT array substrate comprising: a transparent insulating substrate; a plurality of parallel gate electrode lines; a plurality of parallel source electrode lines crossing to the gate electrode lines; a plurality of TFTs located on each crossing point of the gate electrode lines and the source electrode lines; a passivation film formed on the TFTs; a plurality of transparent pixel electrodes formed on said passivation film corresponding to each said TFT and connected to a drain electrode of each said TFT via contact hole; a plurality of floating electrodes which serve as light shielding layer made of a same layer as that of said gate electrode lines formed in a peripheral portion of each said pixel electrode.

Abstract: The present invention is directed to a display device including a scanning line (1) formed on an insulating substrate; a storage capacitance line (3) formed in parallel to said scanning line; an image signal line (2) formed across said scanning line (1) and said storage capacitance line (3) through an insulating layer; and a pixel electrode (6) being surrounded with said scanning line (1), said storage capacitance line (3) and said image signal line (2); wherein at least one overlapped area (11) of said storage capacitance line (3) and said image signal line (2) is defined in the area other than the crossing region of the storage capacitance line (3) and the image signal line (2) within one pixel area; whereby, breakage of the image signal line is mended without increasing the production step, and production yield is improved.

Abstract: The inverter for multi-tube type backlight includes two step-up transformers of one-side grounded type, wherein the two step-up tranformers respectively output electric power to one or a plurality of cold cathode tubes, and wherein outputs of the two step-up tranformers are of identical frequency but of mutually reversed phases.

Abstract: The present invention is directed to a liquid crystal display apparatus including: a timing circuit for operating a shift register within a timing circuit during a vertical blanking period such that a common signal that has been alternated at a cycle of a Single Horizontal period is applied on counter electrodes during the vertical blanking period and such that a storage electrode signal is applied on storage electrodes having a frequency, phase and amplitude identical to those of the common signal.

Abstract: Method for manufacturing a liquid crystal display apparatus including: a TFT array substrate having a plurality of scanning lines formed on a transparent insulating substrate by a metal film, a plurality of data lines formed on or beneath the scanning lines so as to be separated by an insulating film in such a manner as to intersect the scanning lines, switching elements that are formed by a semiconductor layer at respective intersections between the scanning lines and the data lines, and pixel electrodes that are formed by a transparent conductive film and electrically connected to the switching elements; and a counter substrate provided with a liquid crystal interposed between the TFT array substrate and the counter substrate; wherein a divisional exposing method is adopted as a patterning method on the TFT array substrate, so that adjacent exposing areas within a display area of the liquid crystal display apparatus have overlapped portions with each other, and so that a shot layout is defined in such a man

Abstract: A liquid crystal display of the present invention includes: a pair of substrates, at least one of which is transparent; a liquid crystal layer being interposed between said pair of substrates; electrodes for applying an electric field to liquid crystals molecules in said liquid crystal layer; active switching elements connected with said electrodes; an alignment film being formed on a surface of at least one of said pair of substrates, said surface being contacted with said liquid crystal layer; and an optical device for controlling a transmission of light in cooperation with alignment of said liquid crystal molecules in each pixel, said means being located on at least one said pair of substrates; wherein an aligning direction of each liquid crystal molecule in each pixel is ranged between −2 degrees to +2 degrees with respect to an average aligning direction &thgr;1c of said liquid crystal layer.

Abstract: A sheet-like light source device comprising a plurality of bar-shaped light sources, a diffusing plate for diffusing light emitted from the light sources, and a reflecting plate capable of mirror reflecting the light emitted from the light sources to the diffusing plate side. The reflecting plate is provided in a position opposite to the diffusing plate with respect to the light sources. The reflecting plate has at least one convex portion formed in parallel with the light sources in a space between the two adjacent light sources. It is possible to decrease or remove shield printing which has conventionally carried out over the diffusing plate, thereby enabling manufacture of a back light having a high efficiency.

Abstract: A liquid crystal display device includes: a transmission-type liquid crystal panel; a sheet-like light source device for radiating light to a back surface of the liquid crystal panel, the sheet-like light source device including a lamp, a conducting lamp reflector, and a light-conducting plate; a circuit board connected to the liquid crystal panel for supplying a signal necessary for driving the liquid crystal panel; and a mechanism part for housing and holding all three of the liquid crystal panel, the sheet-like light source device, and the circuit board. The mechanism part includes at least one metal part, and the at least one metal part is fixedly attached to the lamp reflector via any one of a screw fastening member, a pinch fastening member, or a snap fastening member. The liquid crystal display device is capable of reducing display deficiencies due to electric noise and is also capable of obtaining clearer images.

Abstract: By using a metal thin film comprising a layer of metal and a layer obtained by adding nitrogen atoms to metal for a metal thin film which becomes a gate electrode and the like, and for a metal thin film which becomes a source electrode and a drain electrode, there is prepared electro-optic elements free from display defects caused by high contact resistance at connected portion of the pixel electrode with the above electrodes even when a low resistance line material is used.

Abstract: An apparatus for manufacturing a liquid crystal panel in which two substrates are faced to each other with spacers interposed therebetween, applied with heat pressure in an overlapped condition, and adhesive arranged between the two substrates is cured for fixing, characterized in that at least of a pair of pressurizing plates for applying pressure to the two substrates is a graphite plate and in that upper and lower pressurizing plates are made to be of different rigidity. The graphite plate of low rigidity is made to stick to the substrate, and shifts between substrate can be prevented while securing uniformity in gap between substrates.

Abstract: In the display area of the TFT array substrate, a pixel electrode, a switching element connected to the pixel electrode, a gate line connected to the switching element and a source line connected to the switching element are formed. In the terminal forming area of the TFT substrate, a terminal electrode for connecting the gate line or source line to external signal source is formed. Around the terminal forming area, a first metallic line and a second metallic line are extended below the terminal electrode. The first metallic line and the second metallic line are connected to the terminal electrode via respective contact holes. The first metallic line and the second metallic line are in different layers interposing an insulating layer therebetween.

Abstract: A liquid crystal display device having transistors disposed at the intersections of gate lines and source lines, pixel electrodes connected with the transistors, opposite electrodes opposite to these pixel electrodes, and liquid crystal held between said opposite electrodes and said pixel electrodes is disclosed. The pixel electrodes comprise a first pixel electrode and a second pixel electrode. The second pixel electrode are disposed in a layer above an insulating layer which is itself disposed in a layer above the first pixel electrode. The second pixel electrode has a region that does not overlap with the first pixel electrode. The second pixel electrode are electrically connected with the first pixel electrode.

Abstract: A sheet-like light source device includes a light-conducting plate, at least one rod-like light source arranged to be adjacent to a light incidence surface, a tubular reflecting member covering the rod-like light source, a planar reflecting member disposed proximate to a position facing a lower surface of the light-conducting plate, and a holding member housing the light-conducting plate, the light source and both of the reflecting members. A stepped portion is provided on the holding member to contact a part of a side of the light-conducting plate on which the rod-like light source is arranged, with the holding member. A distance between the light-conducting plate and the holding member on the stepped portion is made narrower than a distance between an opening portion of the tubular reflecting member and the light-conducting plate.

Abstract: A sheet-like light source device of side-light type comprising a light-conducting plate, at least one rod-like light source disposed proximate to a light-incident surface comprising at least one lateral side end portion of the light-conducting plate, a tubular reflecting member, and a planar reflecting member. Sloped surfaces which are inclined with respect to the light-incident surface of the light-conducting plate are formed proximate to positions of the light-incident surface of the light-conducting plate at which a luminous energy of the rod-like light source is decreased. It is possible to effectively eliminate generation of irregularities of brightness also in case the sheet-like light source device employs a light-conducting plate having no scattering portions through printing.

Abstract: A liquid crystal display according to the present invention can prevent interference fringe on a display panel due to a switching noise of a DC/DC converter, therefore a high-quality image can be displayed. Either of input signals for a timing control circuit is also supplied to a PLL circuit and the DC/DC converter is controlled by an output signal of the PLL circuit, thereby enables to synchronize a switching frequency of the DC/DC converter and control signal.

Abstract: A display device comprising a front frame having an annular picture frame and having a pair of side faces and a pair of end faces provided in outer circumferential sides of the picture frame, a mold frame sandwiched by the pair of side faces and the pair of end faces, and a display panel arranged between the front frame and the mold frame. Stopper pieces for alignment of the display panel are formed in the side faces and the end faces. A display device in which the picture frame of the front frame can be narrowed is obtainable.

Abstract: A chip carrier film comprising a metal wiring formed on a surface of a base film, a first insulating film covering the metal wiring excluding a semiconductor chip connecting pad portion and a terminal connecting pad portion, a semiconductor chip connected to the semiconductor chip connecting pad portion of the metal wiring and mounted on the base film, and a second insulating film formed on a back face of the base film and having a different coefficient of curing shrinkage from that of the first insulating film. It is possible to obtain a chip carrier film capable of preventing the suspension of the base film from being generated by the self weight of the semiconductor chip when holding the base film by the delivery device and of carrying out mounting without a hindrance.

Abstract: The inverter for multi-tube type backlight includes two step-up transformers of one-side grounded type, wherein the two step-up transformers respectively output electric power to one or a plurality of cold cathode tubes, and wherein outputs of the two step-up transformers are of identical frequency but of mutually reversed phases.