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35results about How to "Alignment control" patented technology

Liquid crystal display device

The present invention provides a TBA-mode transflective liquid crystal display device in which components such as a multigap structure and a quarter-wave plate can be omitted. The liquid crystal display device includes: a first substrate and a second substrate that are disposed opposite each other; and a liquid crystal layer that is interposed between the first substrate and the second substrate, and having, in a pixel area, a reflective area where reflective display is performed and a transmissive area where transmissive display is performed, wherein the first substrate has a first electrode provided in the transmissive area and the reflective area, a second electrode provided in the transmissive area and disposed parallel to and opposite the first electrode inside the pixel area, and a third electrode provided in the reflective area and disposed parallel to and opposite the first electrode inside the pixel area, the liquid crystal layer includes a p-type nematic liquid crystal and is driven by an electric field generated at least one of between the first electrode and the second electrode and between the first electrode and the third electrode, the p-type nematic liquid crystal is aligned perpendicular to the first substrate and the second substrate when no voltage is applied, a distance between the first electrode and the third electrode is different from a distance between the first electrode and the second electrode, and mutually different common signals are input to the second electrode and the third electrode.
Owner:SHARP KK

Vapor etching alignment method and vapor etching alignment equipment

The invention relates to vapor etching alignment equipment. The vapor etching alignment equipment is characterized by comprising a platform, a spray gun, a high-pressure vapor spraying system and a movement system, wherein the platform is used for carrying a glass substrate, the spray gun is arranged above the platform, the high-pressure vapor spraying system is used for providing high-pressure vapor flow for the spray gun, and the movement system is used for driving the platform or the spray gun to do relative movement. The invention also provides a vapor etching alignment method using the vapor etching alignment equipment. The vapor etching alignment method comprises the following steps of aligning the spray gun with an alignment film, and adjusting an included angle between the spray gun and the alignment film to a preset angle theta; starting the high-pressure vapor spraying system, adjusting the vapor pressure, and performing vapor etching when the vapor pressure is greater than the vapor etching critical value x. The vapor etching alignment equipment and the vapor etching alignment method have the advantages that the direct contact with the alignment film is avoided, the generation of micro particles, static electricity and scratches at the surface of the alignment film are effectively avoided, the obtained vapor etching grooves are regular, and the alignment of liquid crystals is favorably controlled.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Pixel array of a thermal pattern sensor, sensor associates with coil heating lines

The invention relates to a pixel matrix of a thermal pattern sensor comprising several rows and several columns of pixels, said matrix comprising:
    • an active thermal element formed by a thermosensitive material disposed between a lower layer and an upper layer, the lower layer being constituted by a plurality of first tracks made of electrically conductive material and extending along a first direction, said first tracks forming pixel columns;
    • a heating element, disposed on the active thermal element and forming a serpentine path, said heating element being constituted by a plurality of second tracks (L1, L2, L3, L4, L5, L6) made of electrically conductive material and connecting segments (w1, w2, w3, w4, w5, w6) made of electrically conductive material connected to the ends of the second tracks (L1, L2, L3, L4, L5, L6), said second tracks (L1, L2, L3, L4, L5, L6) extending in a second direction different from the first direction and forming lines of pixels, the second tracks being connected except for the first and last second tracks (L1, L2, L3, L4, L5, L6), by their respective ends to one of the ends of a second preceding track and a second following track by way of said connecting segments (w1, w2, w3, w4, w5, w6), the first and last second tracks each having a free end connected to a connecting segment.
Owner:IDEMIA IDENTITY & SECURITY FRANCE +1
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