摘要:
A liquid crystal display panel with a narrow frame, fabricated by eliminating the space required for applying conductive paste. Sealing adhesive containing conductive particles is applied along a rim between the two substrates and constituting a liquid crystal panel. A common electrode on the second substrate and a electrode connecting terminal on the first substrate are electrically connected through the conductive particles in the sealing adhesive. An insulation film made of an organic material is provided at an area of the sealing adhesive for covering conductors at least at a portion where conductors on the first substrate and facing common electrode on the second substrate overlap. This configuration enables to eliminate the use of conductive paste conventionally required for connecting the facing common electrode and facing electrode connecting terminal.
摘要:
A display panel capable of supplying necessary signals and power source at low resistance to a semiconductor integrated circuit chip mounted on a display panel is disclosed. Herein, electric signals are supplied to terminal electrodes of the scanning lines and signal lines by mounting a driving integrated circuit chip directly on the terminal electrode disposed on the active substrate. Further, electric connection to the driving integrated circuit chip is achieved by mounting a printed circuit board having a larger opening than the outside shape of the driving integrated circuit chip and forming wiring lines at the mounting position of the driving integrated circuit chip mounted on the active substrate and its vicinity, on outside of the image display region of the active substrate.
摘要:
An object of the present invention is to provide an active matrix type liquid crystal display apparatus, capable of being upsized and having enhanced resolution at low cost without being degraded in display quality. In the liquid crystal display apparatus, on a pixel substrate, scanning lines and reference signal lines are formed in a row direction, and on a counter substrate, gradation signal lines are formed in a column direction. A liquid crystal layer is sandwiched between the pixel substrate and the counter substrate. Outside an image display region, a reference signal transfer pad is disposed on the counter substrate opposite to a main reference signal line for connecting end portions of reference signal lines. The reference signal transfer pad and the main reference signal line are electrically connected by conductive material.
摘要:
A liquid crystal device and a manufacturing method thereof are described. The device comprises a liquid crystal panel and an auxiliary panel formed with an IC circuit for supplying driving signals to the liquid crystal device. The auxiliary substrate is separately provided with the circuit and the function thereof is tested in advance of the assembling with the liquid crystal panel. By this procedure, the yield is substantially improved.
摘要:
A connecting part of an outer circuit in a liquid crystal display panel includes a substrate and a plurality of pads on the substrate, where the pads are to be connected to the outer circuit. A first connecting wire is connected to one of said pads, the wire being arranged in a first direction. A second connecting wire is connected to another one of said pads, the second connecting wire being arranged in a second direction. The first and second connecting wires are formed to minimize overlapped areas over the pads at crossing points between the first and second connecting wires and the pads. The first connecting wire is bent toward the second direction at a point and connected to the driving circuit.
摘要:
A method of manufacturing a liquid crystal display device driving with fringe field between counter and pixel electrodes, by the following steps. First, by depositing a first transparent conductive layer on a transparent insulating substrate and etching the first transparent conductive layer, thereby forming a counter electrode. Second, by forming a first insulating layer as a protection layer on the substrate formed on the counter electrode. Third, by depositing a first metal layer on the first insulating layer and etching the first metal layer, thereby forming a gate bus line and a common electrode line, the common electrode line being in contact with the counter electrode. Fourth, by forming a gate insulating layer, an amorphous silicon layer and a second insulating layer on the substrate formed on the gate bus line and the common electrode line. Fifth, by etching the second insulating layer to form an etch stopper. Sixth, by forming a doped amorphous silicon layer and a second metal layer on the substrate formed on the etch stopper. Seventh, by etching the second metal layer to form source/drain and a data bus line. Eighth, by etching the doped amorphous silicon layer and the amorphous silicon layer using the source/drain as a mask to form an ohmic layer and a channel layer. Ninth, by forming a passivation layer on the overall substrate formed on the ohmic layer and the channel layer. Tenth, by etching the passivation layer to open a pad portion of the gate bus line, a portion of the data bus line and the source. Finally, by depositing a second transparent conductive layer on the passivation and etching the second transparent conductive layer, thereby forming a pixel electrode, the pixel electrode being in contact with the opened source, the data bus line, and the pad portion of the gate bus line.
摘要:
A repairable TFT-LCD assembly and a method for fabricating such assembly have been disclosed. In the repairable TFT-LCD assembly, a novel separation tape is utilized between the TFT and the LCD substrate such that when the tape is pulled in a perpendicular direction to the planar surface of the LCD substrate, the TFT can be separated from the assembly without causing damages to the LCD substrate. The separation tape is fabricated of a polymeric based insulating material with a multiplicity of apertures filled with a conductive metal. The back of the separation tape is laminated with a copper film which is patterned corresponding to the pattern of conductive pads provided on the LCD substrate. The present invention is further directed to a method for fabricating the separation tape for use in a repairable TFT-LCD assembly.
摘要:
In a liquid crystal panel substrate having a layered film structure of interlayer insulation films and metal layers alternately formed on a semiconductor substrate provided with a transistor region for pixel selection thereon, to provide a configuration for achieving a uniform polishing rate without thickening of the interlayer insulation film to be polished. A liquid crystal panel substrate is provided with a shading film 12 composed of a second metal layer in a pixel region, a second interlayer insulation film 11 under the shading film, a wiring film 10 composed of a first metal layer under the second interlayer insulation film, a pixel electrode composed of a third metal layer on a third interlayer insulation film 13 on the shading film, and a connecting plug 15 connecting the wiring film 10 and the pixel electrode through an opening provided in the shading film 12. A lower dummy pattern A composed of the first metal layer and an upper dummy pattern B composed of the second metal layer are formed on the periphery of input terminal pads 26 in the non-pixel region. Since the surface level of the third interlayer insulation film 13 formed on the dummy patterns A and B is raised, excessive polishing is prevented at the position. As a result, a uniform polishing rate is achieved in CMP treatment.
摘要:
A conductive adhesive which can withstand exposure to high temperature during a solder reflow process comprises an adhesive resin and a plurality of conductive particles mixed in the adhesive resin. The conductive particles each include a core formed of a synthetic resin and a conductive material coated around the core. The cores are each formed of a material having a thermal deformation temperature higher than that of the adhesive resin, and more preferably formed of a material having a thermal deformation temperature (18.6 kg/cm2) higher than 120° C. as measured according to the measuring method defined in the ASTM standard D648, and still more preferably formed of a material selected from the group consisting of polyphenylene oxide, polysulfone, polycarbonate, polyacetal, and polyethylene terephthalate.
摘要翻译:在回流焊接过程中可承受高温暴露的导电粘合剂包括粘合树脂和粘合树脂中混合的多个导电颗粒。 导电颗粒各自包括由合成树脂形成的芯和围绕芯部涂覆的导电材料。 芯部由热变形温度高于粘合剂树脂的材料形成,更优选由热变形温度(18.6kg / cm 2)高于120℃的材料形成,如根据 测定方法在ASTM标准D648中定义,并且还更优选由选自聚苯醚,聚砜,聚碳酸酯,聚缩醛和聚对苯二甲酸乙二醇酯的材料形成。
摘要:
A liquid crystal display device effectively absorbs static electricity which enters from outside, and prevents damage to switching elements or the like. In the liquid crystal display device, an active matrix substrate has a plurality of scanning signal lines for applying driving signals to a plurality of switching elements for selecting pixels formed in a display area, a plurality of video signal lines, pixel electrodes and common electrode connecting terminals, and the active matrix substrate is bonded to a color filter substrate having common electrodes which constitute the pixels, with a liquid crystal layer interposed between the substrates. The common electrode connecting terminals and the common electrodes are connected to each other via a conductive layer, and the periphery of the display area is secured with a sealing material clamped therein. The liquid crystal display device is provided with a plurality of conductive layers which are formed over video signal lines whose cut ends are exposed on a side surface of the active matrix substrate, with an insulation layer interposed between the conductive layers and the video signal lines, and a connecting line layer which connects the conductive layers to the common electrode connecting terminals.