KR100799168B1 - Performance measuring apparatus for liquid crystal display module - Google Patents

Abstract

An apparatus for measuring the performance of an LCD module is provided to install a power applying unit on a lower end of a first transport unit and an electric power and video signal applying unit at an LCD module mounting unit, thereby performing an aging process on the LCD module while the LCD module is transported. A first transport unit includes rollers and conveyors for automatically transporting an LCD module mounted on a palette. A power applying unit(30) is installed on a lower end of the first transport unit, wherein the power applying unit supplies an electric power to the LCD module to age the LCD module. When the palette is mounted and fixed on a mounting unit by a first fixing element and a second fixing element, an electric power and video signal applying unit applies an electric power and a video signal to the LCD module on the palette. When the electric power and the video signal are applied to the LCD module, the mounting unit is moved to a measurement position by a second transport unit. A detector unit has cameras and driving motors for detecting the LCD module.

Description

Performance measuring apparatus for liquid crystal display module

1 is a perspective view showing a pallet and a first transfer unit in a liquid crystal display module performance measurement apparatus according to the present invention.

2 is an enlarged view of a portion of a first transport unit in a liquid crystal display module performance measuring apparatus according to the present invention;

3 is a view showing an embodiment in which the pallet and the power applying unit in the liquid crystal display module performance measurement apparatus according to the present invention.

4 is a view showing a transfer plate in the liquid crystal display module performance measurement apparatus according to the present invention.

5 is a view showing the pedestal in the liquid crystal display module performance measurement apparatus according to the present invention.

6 is a view showing a rear portion of the pallet and the front portion of the mounting portion in the liquid crystal display module performance measurement apparatus according to the present invention.

7 is a view showing the mounting portion in the liquid crystal display module performance measurement apparatus according to the present invention.

8 is a view showing a detector in the liquid crystal display module performance measurement apparatus according to the present invention.

** Explanation of Major Parts in Drawings **

10: pallet 20: first transfer unit

30: power supply part 40: roller part

50: pedestal 60: transfer plate

100: mounting portion 101: engaging projection

102: Combination Home 110: First Government

120: sensor 130: second fixing part

140: power and video signal applying unit 150: rotating unit

160: second transfer unit 170: cylinder

180: detector unit

The present invention provides a plurality of power supply units and a socket-type power supply and video signal application unit at the lower end of the first transfer unit consisting of a roller and a conveyor so that aging of several liquid crystal display modules can be performed during transport. A liquid crystal display module performance measuring apparatus for automatically aligning the vertical and horizontal of the detector for the performance test of the aged liquid crystal display module.

Initially, the image quality of the liquid crystal display module was judged visually by using inspection personnel. The liquid crystal display module was transmitted to the naked eye detector through a transport platform and visually measured by a microscope mounted on the base. After the detection was completed through the measurement process, the liquid crystal display module was sent to the delivery device by inspection personnel. The observation method using the conventional inspection personnel as described above has a problem that the detection speed is slow, and errors are likely to occur in judgment.

In order to solve such a problem, an image quality automatic detection device has been devised after the lighting of a liquid crystal display panel having an automatic inspection function for the image quality of the LCD panel attached to the artificial observation inspection stand of the LCD manufacturing process. The devised device has a transient mechanism and a transient movement mechanism, which has two holder sheets, which holder sheets are fixed on both sides of the prosthetic examination platform, The slide rails are fixed to the inner side so that the slide seats are fitted, and the slide seats are fixed to both side walls of the base sheet of the over-movement mechanism, and at the same time, power blocks are provided on both side walls of the base sheet, respectively. Drive screw rods are screw-mounted, and two drive screw rods each pass through the bearing seats on both sides of the holder seat, and each drive screw rod is connected to the shaft center of the drive motor with a shaft joint, respectively, so that the drive motor rotates. In this case, the driving screw rod is driven and rotated through the axial splicer, thereby causing the electric blocks on both side walls of the base sheet of the excessive exercise device to be rotated. Driven, the transient movement mechanism forms a reciprocating linear movement up and down from above the slide rail of the holder seat installed on both sides of the above-described artificial observation stand by the slide sheets fixed to both sides of the base sheet. When the temporary movement mechanism moves and reaches a predetermined position, a plurality of sets of digital cameras installed thereon take images displayed on the already lit LCD panel above the artificial observation stand in a still photographing manner, and timely computer The software is provided to the software, which contributes to the identification of defect analysis such as break point, bright point, etc., thereby automatically detecting the image quality of the LCD panel.

However, the image quality inspection apparatus of the LCD panel takes a separate time from the performance inspection time for aging for about 1 hour and 30 minutes by applying power to evaluate the performance of the liquid crystal display module. It takes a lot of time, and the time required for the user to directly attach and detach the sample in the process of transporting the liquid crystal display module for the performance test by the detector (Detector) is significantly reduced in efficiency Appeared.

In addition, when inspecting the performance of the liquid crystal display module by the detector, the inspection personnel have difficulty in aligning the same, and in the case of a beginner, the detector cannot be accurately set vertically and horizontally. In addition, even a skilled user takes a long time to set up, and each time it is set differently, the result is inaccurate. If the result is inaccurate, it affects the measured value. The difference in results in different measured values.

Therefore, the alignment of the detector is a large factor in the measurement error because it affects the measurement data in connection with the accuracy of the measurement point when measuring the viewing angle of the liquid crystal display module. However, the conventional liquid crystal display module performance measurement apparatus has been causing inconvenience that the user must re-measure without this problem.

The present invention has been made to solve the above problems and automatically transfers a plurality of pallets equipped with a liquid crystal display module through a first transfer unit consisting of a roller and a conveyor, a plurality of power supply unit at the lower end of the first transfer unit The liquid crystal display module is aged during installation and transportation, and the transferred liquid crystal display module is automatically mounted on a mounting portion in which a socket-type power source and a video signal applying unit are formed so that power and video signals are applied without a short circuit. An object of the present invention is to provide a liquid crystal display module performance measuring device that significantly increases the efficiency.

In addition, the present invention can be easily operated according to the work instruction even for beginners who measure the performance of the liquid crystal display module in setting the vertical and horizontal of the detector, and not by the operator's vision, but by the coordinate value of the motion. The purpose is to make the setting accurate, to correct the offset value with respect to the center of the instrument, and to correct the deviation after the auto-alignment after the auto-alignment.

According to the present invention, a plurality of power supply units and a mounting unit are provided in the form of sockets on the lower end of the first transfer unit so that aging of the liquid crystal display module can be performed during transfer. The present invention relates to a liquid crystal display module performance measuring apparatus for automatically aligning the vertical and horizontal detectors for the performance inspection of the display module. The liquid crystal display module is placed vertically so that the liquid crystal display module is maintained in the same environment as the user environment. A plurality of pallets for mounting a plurality of rollers, a first conveying unit including a roller and a conveyor for automatically transferring the liquid crystal display module mounted on the pallet, and a plurality of lower end portions of the first conveying unit to supply power to the liquid crystal display module for a long time. Do not short-circuit the power to check A power applying unit for locking aging, a pallet mounting unit for mounting the pallet conveyed by the first transfer unit by using a cylinder, and a sliding movement of the pallet for automatically mounting the pallet to the mounting unit. Pallet consisting of a roller portion, acetal material for maintaining the horizontal of the pallet slid by the roller portion, and when the pallet is located on the pedestal, the engaging groove provided on the back of the pallet and the engaging projection provided on the front of the mounting portion A first fixing part for fixing the first and a second fixing part for detecting the sensor when the pallet and the mounting part are coupled by the first fixing part and moving from the outside in the clockwise direction to fix the pallet; Socket for applying power and video signal when the pallet is fixed to the mounting part by the fixing part or the second fixing part When the power source and the video signal applying unit and the power source and the video signal applying unit are supplied with the power source and the video signal, the mounting unit moves to the measurement position by the second transfer unit, and the rotating unit installed at the lower end of the mounting unit rotates by 90 degrees. In order to inspect the liquid crystal display module of the rotated pallet consists of a detector (Detector) consisting of two cameras and four driving motors are automatically adjusted vertically and horizontally.

Hereinafter, with reference to the accompanying drawings to describe the present invention in detail.

1 is a perspective view illustrating a pallet and a first transfer unit of a liquid crystal display module performance measuring apparatus according to the present invention. As shown in FIG. 1, the pallet 10 and the liquid crystal display module mounted on the pallet 10 are mounted vertically so that the liquid crystal display module is maintained in the same manner as the user environment. It consists of a first conveying part 20 consisting of a roller and a conveyor for automatically conveying. In addition, as shown in FIG. 2, the power applying unit 30 installed at the lower end of the first transfer unit 20 is configured to apply power to aging the liquid crystal display module. 3 illustrates an embodiment in which the pallet 10 and the power applying unit 30 are in contact with each other to apply power. Therefore, since the power supply unit 30 is formed at the lower end of the first transfer unit 20, the aging of the liquid crystal display module is performed during the transfer by the first transfer unit 20. It is characterized in that the aging (Aging) is made.

4 is a view showing the roller portion 40 of the liquid crystal display module performance measurement apparatus according to the present invention, the roller portion 40 is the conveying plate 60 located on the lower portion of the first transfer portion 20 direction of the mounting portion 100 After the forward movement to the roller 10 through the roller portion 40 installed in the transfer plate 60 is configured to the sliding movement.

5 shows a pedestal 50 for seating the pallet 10 slidably moved from the roller portion 40. As shown in FIG. 5, a pedestal 50 is formed of an acetal material for fixing the pallet 10 slidingly moved by the roller part 40, and when the pallet 10 is positioned on the pedestal 50, FIG. 6 and 7, the pallet 10 is moved to the first fixing part 110 by a coupling groove 102 installed at the rear of the pallet 10 and a coupling protrusion 101 installed at the front of the mounting part 100. When the pallet 10 and the mounting unit 100 are coupled to each other by the first fixing unit 110, the sensor 120 senses this, and moves from the outside to the inside in the clockwise direction by using a screw principle. 10) the second fixing part 130 is fixed. When the pallet 10 is fixed to the mounting unit 100 by the first fixing unit 110 to the second fixing unit 130, the power supply and video signal applying unit 140 in the form of a socket for applying power and video signals is provided. When the four 50-pin module 140a installed at the rear of the pallet 10 and the four sockets 140b formed at the front of the mounting unit 100 are combined, the sensor 120 detects this and the second fixing unit 130 is provided. By the pallet 10 is fixed to the power source and the video signal is characterized in that.

Referring to the method in which the pallet 10 is mounted to the mounting unit 100 through FIG. 7 in detail, the second transfer unit 160 installed at the lower end of the mounting unit 100 is the transfer plate 60 of the first transfer unit 20. After moving forward to move the plate 60 to the base 50, the mounting portion 100 is moved forward 10cm to the front by using a cylinder 170 installed on the rear of the mounting portion 100 Rotating the second fixing part 130 up, down, left, and right of the back of the pallet 10 in FIG. 3 seated on the pedestal 50 while the pallet 10 and the mounting part 100 are in close contact with each other. Chucking as grabbed by

In addition, as shown in FIG. 8, in the performance measurement method of the liquid crystal display module using the detector unit, when the power and video signals are supplied to the power and video signal applying unit 140, the second transfer unit 160 may center the measurement chamber. The mounting unit 100 moves to the measuring position, and the rotating unit 150 installed at the bottom of the mounting unit 100 rotates by 90 degrees to face the detector direction, and inspects the liquid crystal display module of the rotated pallet 10. The performance of the liquid crystal display module is measured by a detector unit 180 including two cameras and four driving motors automatically adjusted vertically and horizontally.

An embodiment will be described with reference to automatic adjustment of the detector unit vertically and horizontally. The detector is removed from the detector unit and then remounted to reset the detector unit vertically and horizontally. First select the origin and move the mounting position, then mount the liquid crystal display module on the pallet. After setting the power and outputting, set the pattern and output it. Display the center of the pattern, move the Z-axis distance to 1,200mm and rotate the H-axis and V-axis 0 degrees. At this time, X and Y motions are controlled by monitoring using a CCD monitor so that the aperture of the detector is located at the center of the pattern.

Then, activate the laser sensor and change the H-axis and V-axis values so that the four distance values (Left, Left, Right, Right and Right) from the center are the same by clicking the Left, Left, Bottom, Right and Right buttons. In this case, if the distance value is the same, the position value of H axis and V axis is absolute 0 degree. The distance of the Z axis is again moved to 600 mm, and the X and Y motions are controlled while the CCD is monitored so that the aperture of the detector is located at the center of the pattern. Then, the distance on the Z axis is moved to 1,200 mm, the current position values of the X and Y axes are recorded, and the position values at this time are called X1 and Y1. While monitoring the CCD monitor so that the aperture of the detector is located at the center of the center pattern, the X and Y axis motions are controlled.If the detector is located at the center of the pattern, the position values of the X and Y axes are stored as X2 and Y2 for correction. If you need to calculate the position to move, you can get X3 = X1-X2 and Y3 = Y1-Y2. Therefore, during calibration, move the X-axis (Y-axis) twice in the opposite direction by the distance X3 (Y3) from the current position, and monitor the CCD monitor so that the aperture of the detector is at the center of the pattern, The motion of the V6 axis is controlled and the distance of the Z axis is moved to 600 mm to finally check whether the diameter of the detector part is located at the center of the pattern.

As described above, preferred embodiments according to the present invention have been described, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the scope of the present invention as claimed in the following claims. Anyone with knowledge of the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.

The present invention automatically transfers a pallet on which a liquid crystal display module is mounted through a first conveying unit consisting of a roller and a conveyor, and installs a plurality of power applying units at the lower end of the first conveying unit, thereby aging the liquid crystal display module even during conveying. In this case, the transferred liquid crystal display module is automatically mounted in a mounting portion in which a socket-type power source and a video signal applying unit are formed so that power is continuously applied to inspect the liquid crystal display module to which the video signal is applied in the performance measurement method. Aging several liquid crystal display modules has the effect of significantly increasing the efficiency of the inspection equipment. That is, if the conventional inspection equipment has been tested for performance by aging, measurement, sample replacement, aging, measurement, and the like, the inspection equipment according to the present invention may simultaneously proceed with aging and measurement. After the measurement is completed, the working time can be shortened by automatically replacing the sample with the aging completed.

In addition, in setting the vertical and horizontal of the detector, even a beginner can easily operate it according to the work instruction, and the setting is made precisely by the method of motion coordinates rather than by the operator's vision. There is also an effect of correcting the (Offset) value and correcting the deviation with respect to the Offset value after auto-alignment.

Claims (4)

The power and video signal applying units are provided in the form of sockets on the lower end of the conveying unit and the mounting unit so that aging of several liquid crystal display modules can be performed during the transfer. In the liquid crystal display module performance measurement device for automatically aligning the vertical and horizontal detectors for performance testing, A pallet (10) mounted vertically to mount the liquid crystal display module so that the liquid crystal display module can be maintained in the same manner as the user environment; A first conveying unit (20) consisting of a roller and a conveyor for automatically conveying the liquid crystal display module mounted on the pallet (10); A power applying unit (30) installed at a lower end of the first transfer unit (20) to supply power to the liquid crystal display module during the transfer and to age the power so as not to be short-circuited to check the state for a long time; A pallet mounting unit (100) for mounting the pallet (10) transferred by the first transfer unit (20) by using a cylinder; A roller portion 40 for slidingly moving the pallet 10 in order to automatically mount the pallet 10 in the mounting portion 100; A pedestal 50 made of an acetal material for maintaining the horizontality of the pallet 10 slid by the roller portion 40; When the pallet 10 is located on the pedestal 50, the first fixing part fixing the pallet by the coupling groove 102 installed on the rear surface of the pallet 10 and the coupling protrusion 101 installed on the front of the mounting part 100. 110; When the pallet 10 and the mounting unit 100 are coupled to each other by the first fixing unit 110, the sensor 120 detects this, and moves the clock to the outside from the outside in the clockwise direction to fix the pallet 10. Government 130; When the pallet 10 is fixed to the mounting unit 100 by the first fixing unit 110 to the second fixing unit 130, the power supply and video signal applying unit 140 in the form of a socket for applying power and video signals is provided. Wow; When power and video signals are applied to the power and video signal applying unit 140, the mounting unit 100 is moved to the measurement position by the second transfer unit 160, and the rotating unit 150 installed at the lower end of the mounting unit 100 is A detector unit 180 which includes two cameras and four driving motors, each of which is automatically adjusted vertically and horizontally to inspect the liquid crystal display module of the rotated pallet 10 by rotating at 90 degrees; Liquid crystal display module performance measurement device consisting of. The method of claim 1, The roller unit 40 moves forwarding the transfer plate 60 located at the bottom of the conveyor 20 toward the mounting unit 100 so that the pallet 10 slides through the roller unit 40 installed on the transfer plate 60. Liquid crystal display module performance measurement apparatus, characterized in that seated on the base 50 by moving. The method of claim 1, The second transfer unit 160 installed at the lower end of the mounting unit 100 is moved forward to the transfer plate 60 of the first transfer unit 20, by using the cylinder 170 installed on the rear of the mounting unit 100 Liquid crystal display module performance measurement apparatus characterized in that the mounting portion 100 is moved about 10 cm to the front to chuck the pallet (10) seated on the pedestal (50). The method of claim 1, The power and video signal applying unit 140 is coupled to the four 50-pin module 140a installed on the back of the pallet 10 and four sockets 140b formed on the front of the mounting unit 100, the sensor 120 When the detection is detected by the second fixing unit 130 is fixed to the palette 10, the power supply and the liquid crystal display module, characterized in that the video signal is applied.

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