Abstract: A heat treatment apparatus for manufacturing a liquid crystal display panel through an in-situ process includes a body and a hardening unit, an annealing unit, and a transferring unit disposed on the body. The hardening unit heats a sealing member within a liquid crystal display panel to harden the sealing member. The annealing unit anneals liquid crystal within the liquid crystal display panel sealed by the sealing member. The transferring unit transfers the liquid crystal display panel between the hardening unit and the annealing unit. Therefore, the sealing member may be hardened and the liquid crystal may be sealed through an in-situ process to enhance productivity.

Abstract: A display substrate includes a substrate, signal lines and test lines. The substrate includes a pixel region where pixels are disposed, a buffer region surrounding the pixel region and a grinding region surrounding the buffer region. The signal lines pass through the buffer region from the grinding region to provide the pixels with a driving signal. The test lines are disposed on the grinding region and the buffer region, respectively, so that the test lines intersect the signal lines in a lattice structure. Each of the test lines is electrically connected to the signal lines of a first number calculated by dividing a second number of the signal lines by a third number of the test lines. Thus, the performance of the pixels used for displaying an image may be tested more precisely.

Abstract: An inkjet method of printing an alignment layer is presented. The method entails depositing drops of an alignment liquid on a substrate while moving a plurality of inkjet heads and/or the substrate relative to each other to form a first dropping line on the substrate. The method also entails rotating a printing stage on which the substrate is mounted, and depositing drops of the alignment liquid on the substrate after forming the fist dropping line to form a second dropping line. Since the printing stage is elevated and rotated, the drops of the alignment liquid are easily deposited in a grid pattern to decrease the space between adjacent drops. If desired, drops may be skipped to avoid depositing the alignment liquid multiple times on the same location on the substrate. With this method, the planarization time of the alignment layers is shortened.

Abstract: A piezoelectric unit includes a first piezoelectric member having a tubular shape, a second piezoelectric member inserted into a first opening of the first piezoelectric member, and a voltage applying member applying a driving voltage to the first and second piezoelectric members. An orifice plate includes a body through which first nozzle openings corresponding to the first piezoelectric member and second nozzle openings corresponding to the second piezoelectric member are formed. An elastic member is disposed between the first and second nozzle openings and the piezoelectric unit. A shape of the elastic member is changed in accordance with a changed shape of the piezoelectric unit for jetting ink through the first and second nozzle openings. Thus, a nozzle pitch of a printer head may be reduced.

Abstract: A visual inspection apparatus includes a plurality of cameras for photographing a display panel and a processor for processing the photographed image. Specifically, the visual inspection apparatus includes: a work table having a panel mounting unit on which a display panel is mounted; a camera module which is disposed in a direction normal to the panel mounting unit and which has a plurality of cameras arranged in a matrix; and a processor for processing the images of the display panel photographed with the cameras. The plurality of cameras is arranged in a matrix with variable distances between the cameras. Since the visual inspection apparatus includes the cameras arranged in a matrix, it can be used to effectively detect a variety of defects.

Abstract: A heat treatment apparatus for manufacturing a liquid crystal display panel through an in-situ process includes a body and a hardening unit, an annealing unit, and a transferring unit disposed on the body. The hardening unit heats a sealing member within a liquid crystal display panel to harden the sealing member. The annealing unit anneals liquid crystal within the liquid crystal display panel sealed by the sealing member. The transferring unit transfers the liquid crystal display panel between the hardening unit and the annealing unit. Therefore, the sealing member may be hardened and the liquid crystal may be sealed through an in-situ process to enhance productivity.

Abstract: A heat treatment apparatus for manufacturing a liquid crystal display panel through an in-situ process includes a body and a hardening unit, an annealing unit, and a transferring unit disposed on the body. The hardening unit heats a sealing member within a liquid crystal display panel to harden the sealing member. The annealing unit anneals liquid crystal within the liquid crystal display panel sealed by the sealing member. The transferring unit transfers the liquid crystal display panel between the hardening unit and the annealing unit. Therefore, the sealing member may be hardened and the liquid crystal may be sealed through an in-situ process to enhance productivity.

Abstract: A method for eliminating a display defect in a liquid crystal display device includes disposing a liquid crystal panel adhered with a polarizer into a first buffer chamber, increasing pressure of the first buffer chamber, communicating the first buffer chamber with a reactor chamber having a predetermined pressure, transferring the liquid crystal panel from the first buffer chamber to the reactor chamber, increasing pressure of a second buffer chamber, communicating the second buffer chamber with the reactor chamber, and transferring the liquid crystal panel from the reactor chamber to the second buffer chamber.

Abstract: A piezoelectric unit includes a first piezoelectric member having a tubular shape, a second piezoelectric member inserted into a first opening of the first piezoelectric member, and a voltage applying member applying a driving voltage to the first and second piezoelectric members. An orifice plate includes a body through which first nozzle openings corresponding to the first piezoelectric member and second nozzle openings corresponding to the second piezoelectric member are formed. An elastic member is disposed between the first and second nozzle openings and the piezoelectric unit. A shape of the elastic member is changed in accordance with a changed shape of the piezoelectric unit for jetting ink through the first and second nozzle openings. Thus, a nozzle pitch of a printer head may be reduced.

Abstract: A visual inspection apparatus includes a plurality of cameras for photographing a display panel and a processor for processing the photographed image. Specifically, the visual inspection apparatus includes: a work table having a panel mounting unit on which a display panel is mounted; a camera module which is disposed in a direction normal to the panel mounting unit and which has a plurality of cameras arranged in a matrix; and a processor for processing the images of the display panel photographed with the cameras. The plurality of cameras is arranged in a matrix with variable distances between the cameras. Since the visual inspection apparatus includes the cameras arranged in a matrix, it can be used to effectively detect a variety of defects.

Abstract: The glass substrate test apparatus of the liquid crystal cell process comprises a laser unit for generating a laser beam, a beam shaper and beam collimator for shaping the laser beam emitted from the laser unit so as to have an elongated cross section and parallelizing the shaped laser beam, a photo detector for detecting an intensity of double refraction of the shaped laser beam transmitted over the whole glass substrate, a phase defector for measuring the laser double refraction detected by the photo detector and comparing the measured double refraction with a standard laser double refraction, and a polarizer arranged between the laser unit and the beam shaper or between the beam shaper and the beam collimator for polarizing the laser beam to a parallel ray.

Abstract: An inkjet alignment liquid printing apparatus is provided, which includes a plurality of inkjet heads injecting alignment liquid on a substrate, and a printing stage mounted to the substrate, wherein a portion of the printing stage is elevated and rotated.

Abstract: A system for manufacturing a liquid crystal display device includes a vessel storing liquid crystal (LC), a nozzle for dropping the LC onto a liquid crystal display panel, a pressurizer configured to draw a predetermined amount of the LC from the vessel and discharge the drawn LC into the nozzle, and a valve alternately communicating the pressurizer with the vessel or with the nozzle.

Abstract: A heat treatment apparatus for manufacturing a liquid crystal display panel through an in-situ process includes a body and a hardening unit, an annealing unit, and a transferring unit disposed on the body. The hardening unit heats a sealing member within a liquid crystal display panel to harden the sealing member. The annealing unit anneals liquid crystal within the liquid crystal display panel sealed by the sealing member. The transferring unit transfers the liquid crystal display panel between the hardening unit and the annealing unit. Therefore, the sealing member may be hardened and the liquid crystal may be sealed through an in-situ process to enhance productivity.

Abstract: A method for eliminating a display defect in a liquid crystal display device includes disposing a liquid crystal panel adhered with a polarizer into a first buffer chamber, increasing pressure of the first buffer chamber, communicating the first buffer chamber with a reactor chamber having a predetermined pressure, transferring the liquid crystal panel from the first buffer chamber to the reactor chamber, increasing pressure of a second buffer chamber, communicating the second buffer chamber with the reactor chamber, and transferring the liquid crystal panel from the reactor chamber to the second buffer chamber.

Abstract: A display substrate includes a substrate, signal lines and test lines. The substrate includes a pixel region where pixels are disposed, a buffer region surrounding the pixel region and a grinding region surrounding the buffer region. The signal lines pass through the buffer region from the grinding region to provide the pixels with a driving signal. The test lines are disposed on the grinding region and the buffer region, respectively, so that the test lines intersect the signal lines in a lattice structure. Each of the test lines is electrically connected to the signal lines of a first number calculated by dividing a second number of the signal lines by a third number of the test lines. Thus, the performance of the pixels used for displaying an image may be tested more precisely.

Abstract: A system and method for advantageously forming an alignment film are provided. An anilox roll is operably engaged with a printing roll to print an alignment film onto a substrate, in one example including a liquid crystal display panel. Multiple rotations of the printing roll are used to provide efficiency and flexibility in printing a variety of alignment film patterns onto a variety of substrates.

Abstract: The glass substrate test apparatus of the liquid crystal cell process comprises a laser unit for generating a laser beam, a beam slitter and parallel beam slitter for slitting the laser beam emitted from the laser unit so as to have an elongated cross section and parallelizing the slit laser beam, a photo detector for detecting an intensity of double refraction of the slit laser beam transmitted over the whole glass substrate, a phase defector for measuring the laser double refraction detected by the photo detector and comparing the measured double refraction with a standard laser double refraction, and a polarizer arranged between the laser unit and the beam slitter or between the beam slitter and the parallel beam slitter for polarizing the laser beam to a parallel ray.

Abstract: A color filter substrate for a liquid crystal display LCD of which a bad adhesion in a pattern terminal is reduced and an electrode pattern can be easily distinguished, is disclosed. Black matrixes and an indium tin oxide are formed on a glass substrate by using chromium and color filter layers having red, green and blue dyes are formed. A protective film and an ITO transparent electrode layer are deposited on the black matrix and the colors filter layers to be overlapped on a part of each pattern terminal. Thus, a liquid crystal display element can be realized such that the adhesive strength of the ITO can be improved. Also, as the pattern terminal has chromium, a tape automated bonding integrated circuit can be advantageously distinguished at the following process step of mounting it, making the automation of process possible and improving the productivity.