TWM243668U - Repairing structure of liquid crystal display - Google Patents

Description

M243668 V. Creation Instructions (l) __ With the development of manufacturing technology,

Costal ^ -Play > LCD) ^^^^ UgUld, and its satellite operating principle is mainly used to display the display elements of the electric application, so that the line generated by the light of the liquid crystal can be changed to the arrangement state of the display, and the display effect is changed. Xiuzuka 'then reached a bright and dark (TFT: i first: Tourei is a thin film transistor liquid crystal display cry UHLLD) one of the early circuit block diagram, Nong = controlled by the scanning line voltage Vs and the second,% crystal 1 1 line and the data line is working on a thin film transistor so that the liquid crystal 12 looks like an electrode 13 on the two sides of the liquid crystal 12.], diarrhea is added to change the arrangement of the liquid crystal 12; = co-control = ΚΪΓ: light source 14 The emitted light reaches the second viewing angle = the display effect of the stubborn change ', and the storage capacitor 15 board ::: TFT LCD is an array composed of the above units on the display surface coat (arra ). However, in the production of health: some errors or omissions may result in: circuit ,, =, defects such as new circuits or disconnections, etc., and in order to remove such defects, the current structural layout of TFT LCDs In general, the repair structure shown in the two figures is usually provided to solve the above problems. . . From the second picture, it is a schematic diagram of a repair structure commonly used in a thin film transistor liquid crystal display. When I find a defect, I conveniently use laser light to align the first metal layer 21 and the second metal layer 22 The insulating layer 23 is destroyed, and the first metal layer 21 is further fused and welded to the second metal layer 22

Page 4 M243668 V. Creative Instructions (2) Connect (we Id) in (approximately 550 lines, so the melting point of aluminum is lower than (we 1 d) action road, open circuit or condition 0) Welding belongs to a layer; a break, and 10% of its cladding is in a melted state. According to the material of the upper layer is oxidized. According to the material of the upper layer is nitrided. The case is solved: together to complete the repair The lower melting point (~ 660 °) of Shao's, which is more conducive to the above-mentioned smelting and welding operation. The material of the metal layer 21 is usually completed with aluminum, but it is also caused by the low The fusion welding by laser light can easily cause aluminum to spill around, which can cause short Schottky (S ch 〇11 ky) contact failures such as poor electrical contact. The improvement of the above defects is the development of this case. the main purpose. For a repair structure of a liquid crystal display, a laser light action is provided. The structure includes a first metal layer and a second gold edge layer disposed on the first metal layer and the second metal layer. Covering the first metal layer with a material having a melting point higher than the first metal layer is used to avoid the first metal when the laser light performs insulation on the first metal layer and the welding operation is performed on the first metal layer Spills occur on the layers. The first metal aluminum in the repair structure of the conception of the liquid crystal display is described. In the concept, the indium tin oxide (IT) of the coating layer in the repair structure of the liquid crystal display is described. Said to conceive the repair structure of the liquid crystal display, the second metal such as chromium, molybdenum, tungsten molybdenum and the like or a combination thereof is completed. The concept mentioned above, the silicon (SiNx) of the insulating layer in the repair structure of the liquid crystal display.

M243668 .............. '— V. Creation Instructions (3) " ---- Brother " Figure · It's a thin film transistor Pan Yuesi 5-σσ / rr »M ^ τ A block diagram of a unit circuit of a TFT LCD. -The second picture ... It is a patch used in a thin-film transistor LCD display. The structure is not intended. The second figure is a schematic diagram of the structure of the preferred embodiment of the repair structure in the liquid crystal display. The elements included in the drawings in this case are listed as follows: liquid crystal 1 2 common electrode 1 3 2 storage capacitor 1 5 second metal layer 22 first glass substrate 3 0 second metal layer 32 cladding layer 34 color filter 3 6 Thin film transistor 11 Pixel electrode 1 3 1 Back light source 1 4 First metal layer 2 1 Insulating layer 2 3 First metal layer 3 1 Insulating layer 3 3 Liquid crystal 3 5 Second glass substrate 3 7 See the third picture In this case, the preferred embodiment structure proposed for the repair structure in the liquid crystal display is not intended. 'The first metal substrate 30 is sequentially formed with the second metal layer 32, the insulating layer 33, and the first metal layer 31, and The cladding layer 34 is made of a material having a higher melting point than the first metal layer, and further covers the first metal layer 3 1, and a liquid crystal 35, a color filter, a sheet 36, and a second are disposed thereon. Glass substrate 3 7. And when I find defects

M243668 V. Creation instructions (4) When repairs are needed, the insulation layer 3 3 is advanced into a laser light and the first metal layer 31 is fired, and the Huai-Niu cattle line is destroyed by layer 31. Welding with the second metal layer 32 to complete the repair until the cladding layer 34 is at this time can avoid the second gold '= t double overflow phenomenon in the molten state, thereby eliminating short-circuits at the contact points, Open circuit or schott ^ poor electrical contact such as money (Schot tky) contact. The material of the above-mentioned first metal layer 31 is usually aluminum, and the material of the insulator 33, and the material of the insulation 33 may be silicon nitride (Si Nx). As for the material of the cladding layer 34, Indium tin oxide (IT0) is used, which can be completed together when defining the liquid crystal display pixel electrode, and indium tin oxide (ITO) IT0) has a melting point of approximately i 0 0 0 °, which is much higher than the melting point of aluminum (approximately 550 ° to 660 °), so it is quite suitable as the shell material of the cladding layer 34. As for the material of the second metal layer 32, a conductive material (such as chromium, molybdenum, tungsten molybdenum, and the like or a combination thereof) having a melting point much higher than the photographic temperature of 100 ° can be used. The wavelength and intensity of the laser light are preferably 64 nanometers (nm) and low energy, and the liquid crystal display can be inverted (the second glass substrate 37 is on the top and the first glass substrate 30 is on the bottom). The laser light is incident inward from the first glass substrate 30 to perform the welding operation. As mentioned above, the first metal layer 31 with the cladding layer 34 can effectively avoid the lack of customary use of the metal layer, and the laser light with an appropriate wavelength and intensity will enable the first metal layer 31 and the A good ohmic contact is formed between the second metal layers 32, which completely improves the above-mentioned conventional defects, and achieves the main purpose of developing this case. Therefore, this case was created by people who are familiar with this technology, and modified by all kinds of artisans.

^ 243668 V. Creation Instructions (5) The scope of protection. M243668 Brief description of the diagram The first picture: it is a block circuit diagram of a unit of a thin film transistor liquid crystal display (TFTLCD). The second picture: it is a schematic diagram of a repair structure conventionally provided in a thin film transistor liquid crystal display. The third figure is a schematic diagram of the structure of the preferred embodiment of the repair structure in the liquid crystal display proposed in this case.

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Claims (1)

M243668 Case No. 89213998 Amendment V. Supplementary Patent Application Supplement 1. A repairing structure of a liquid crystal display that provides a laser light for a welding operation, the structure includes: a first insulation; and a package (Indium layer for Spilling occurred in the metal layer 2. If applying for the third one. If applying for the first combination to complete 4. If applying for the first metal layer and the second metal edge layer, the coating, tin ox welding at the mine Phenomenon. The indium tin oxide (I TO) (I TO), which is disposed on the first metal layer and the second metal layer and has a melting point higher than that of the first metal layer, is completed. When the insulating layer is damaged and the first gold is operated, the repairing structure of the liquid crystal display described in item 1 of the patent scope of the first metal layer in a molten state is avoided. A metal layer is made of aluminum. The repair structure of the liquid crystal display device described in item 2 is made of chrome, molybdenum, tungsten molybdenum and other materials or its patented second metal. The repair structure of the liquid crystal display device described in item 1 of the patent range layer is made of silicon nitride (SiNx). Page 10 2004.06.15.010