TW482709B - Pressurization device used on liquid crystal display - Google Patents

Abstract

A pressurization device used on a liquid crystal display (LCD) is used in the laser modification processing process of a LCD panel and comprises: a pressurization head for contacting the LCD panel; and a power device for driving the pressurization head and applying a pressure to the LCD panel.

Description

482709 V. Description of the invention (1) [FIELD OF THE INVENTION The present invention relates to a pressurizing device for a liquid crystal display, and more particularly to a pressurizing device for a liquid crystal display, which can improve the laser correction of the liquid crystal display. process. [Prior technology] Llquid Crystal Display (LCD) is often used in such electronic products because of its advantages such as low power consumption, low heat generation, light weight, and non-light-emitting display. Has even gradually replaced traditional cathode ray tube displays. The manufacturing process of the liquid-day display generally includes injecting liquid crystal material into two flat glasses with glass electrodes, sealing through the injection port, cutting the liquid crystal cell e), functional inspection, and attaching a polarizing plate (polarizing film) on the outside. After that, the LCD Ceu / panei is completed. The driver circuit, the control circuit, the backlight and other components are installed and covered with a frame to complete the liquid crystal display module (lcd module). Those skilled in the art will understand that the thin film transistor (tft: Τηη transistor is controlled. However, if one of the transistors) θ then θ causes a defective point (Defect 0 s / Pixeis) on the LCD panel. In fact, the bad spot can be divided into bright spots (counter 4 dark spots iDark Dots), and the bright spots will be accepted by the user due to the effect on the display, so the laser spot is usually corrected to correct the bright spot: click this one The processing process mainly uses laser light to invalidate the pixel transistor that caused the redundancy, that is, the pixel transistor is made by laser light.

Page 4 482709 V. Description of Invention (3) The detailed description is as follows. [Explanation of the invention] Referring now to Fig. 1 ', a pressurizing device 10 according to a preferred embodiment of the present invention is disclosed. The pressurizing device 10 has a main body 2 2 / which includes an air cylinder 24 which can be driven by a pneumatic source (not shown) for driving a pressurizing rod 28 in a vertical direction and a control switch 26, Used to control the operation of the gas cylinder 24. The pressure lever 28 has a pressure head 30 for applying pressure to a liquid crystal display panel. Those skilled in the art will be able to replace the cylinder 24 with any form of power unit, such as hydraulic pressure.

Defect Dots / Pixeis) Correct the highlight 44 with a laser. After that, by the time of 2:00, 5 heads and 30 apply pressure to the bright spot 44 and 2 of the pressurized dark spot. In the present embodiment, the 4 redundant points were revised to be acceptable in the embodiment of the two = Ming, the pressurized milking, the LCD display panel 40 instantaneous stretch "press & no, the pressurized nightmare n strong. Such as Figure 1a

Contact surface 31. The connection; qi seven A muscle outside the Russian IU cone · 4 The edge of the contact surface 31 is round. Kai Pu, foreigners, scholars. The size of Λ v _rot ’JL is 0. The image f of the liquid crystal display panel 40 is f • phase m wood 0.1 mm, and the contact surface + taxi v ^ is 2 mm. The pressurizing device 10 ,,, ...:? The diameter of the contact surface 31 is preferably two !: f? 3 ° is-the generally truncated cone If is 2mm. The pressurizing device is 10 squares, the diameter of the Λ Γ yong pressing contact surface 31, the pressure of the pressing head 30 is temporarily & the applied force is about 3 Kg / m2. The chair can be made of Bakelite or other materials, which can be Bakelite or Teflon (Polyurethane should be added to avoid the ethylene during the pressurization process) or soft rubber scratches the LCD panel of the Hai Hai 4.

P01-071.ptd $ 6, poor explanation (4) Please refer to FIG. 2 for details of the embodiment with a pressurizing process ^ According to one of the preferred embodiments of the present invention, a solid crystal display panel. When the manufactured second positive method 100 is used to correct a defect of a liquid point, the liquid crystal display = :: Laser correction method of the device panel that is found to be bright after inspection 丨 0 (). Panel D will start the circuit with the Gabor LCD panel before the panel, and then proceed again: Correct the liquid crystal display by laser in step 120, and read in step 120 on day one. Press the pressure treatment, and then enter the step: then = the panel will use the pressure device to confirm the LCD handle θ. At step 1 30, an operator will go to step 14G +. ♦ 疋 still has the defect of bright points. If there is any, go to the next step, end the test, and enter * In step 140, the option is to correct the laser to J. Method 100. Can the panel be tested again? Determine whether the LCD monitor after the correction has entered Step 5 ", / Bi ^ M 7. Discard the LCD monitor panel. By using the correction method according to the present invention, it is possible to increase at least m 'of the positive J force = min. To at least 80% in the manufacturing process. Obviously: good = use and laser correction methods with pressurization process are: Yield ‘reduced waste’ to reduce costs. 〇 ^ system, who, I note that although in the foregoing with = pressurization device and method, but the pressurization device of the present invention, other electronic components. For example, laser correction guarding is used to correct the circuit on the printed circuit board, and the invention plus = 482709 V. Description of the invention (5) It can be used to pressurize the circuit board to provide the correction process. Correctness. Although the present invention has been disclosed with the aforementioned preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the attached patent application.

P01-071.ptd Page 8 482709 Brief Description of the Drawings [Illustration] Figure 1: It is a schematic perspective view of a pressure device according to a preferred embodiment of the present invention. Fig. 1a: A side plan side view of the pressurizing head of the pressurizing device in Fig. 1. FIG. 2 is a flowchart of a laser correction method having a pressurizing process according to the present invention. [Illustration of drawing number] 10 Pressurizing device 22 Main body 2 6 Control switch 30 Pressurizing head 40 Liquid crystal display 44 Bright spot / pixel 100 11 with pressurizing process 0 0 Laser correction step 1 3 0 Inspection confirmation step 1 5 0 Judge scrap 2 4 Pneumatic cylinder 28 Pressure lever 31 Contact surface shot correction method 1 2 0 Pressure correction step 1 4 0 Heavy industry judgment step 1 6 0 Termination step

P01-071.ptd Page 9

Claims (1)

482709 VI. Scope of patent application 1. A pressurizing device for a liquid crystal display, which is used in a laser correction process of a liquid crystal display panel, includes: a pressurizing head for contacting the liquid crystal display panel; and The power device is used for driving the pressure head to apply pressure to the liquid crystal display panel. 2. The pressurizing device for a liquid crystal display according to item 1 of the scope of patent application, wherein the power device is a pneumatic cylinder. 3. The pressurizing device for a liquid crystal display according to item 1 of the scope of patent application, wherein the power device is a hydraulic cylinder. 4. The pressurizing device for a liquid crystal display according to item 1 of the scope of patent application, wherein the power device is a motor. 5. The pressurizing device for a liquid crystal display according to item 1 of the scope of the patent application, wherein the pressurizing head has a substantially truncated cone shape. ~ 6. The pressurizing device for a liquid crystal display according to item 1 of the scope of the patent application, wherein the pressurizing head has a substantially circular contact surface which is in contact with the liquid crystal display, and the diameter of the contact surface is about 2mm. . 7. The pressurizing device for a liquid crystal display according to item 1 of the scope of patent application, wherein the pressure applied by the pressurizing device to the liquid crystal display is about 3 kg / m2. P01-071.ptd Page 10 六 幺 mm 〇 I ί! Please refer to item 9 of the patent scope and have 1 3kg / m2. Hai / Yejing_ $ 无 々 Shield + Fang's pressure is about _ 4 ^ 2709, patent application scope 8 · Pressure for liquid crystal display according to item 1 of the patent application scope, the pressure head is iron fluoride Made by Dragon (PTFE). Also, a laser correction method with a pressurization process is used to correct a defect on a panel line, including the steps: To provide a laser light source to display a laser beam daily A beam of light irradiates the liquid crystal display at one place, thereby correcting the defect, and a defect in the circuit of the ° board is provided with a pressure head for applying pressure to the area where the laser% is irradiated. 10. According to the possession method according to item 9 of the patent application scope, wherein the pressurizing head has a shape of a laser correction method of a round and a round of a force-pressing process. = · According to item 9 of the scope of the patent application, wherein the pressure head has a large body rf " laser correction square of the pressing process contacts the diameter of the contact surface: the shape of the contact surface, and the liquid crystal , 卩 is 2%