CN216160941U

CN216160941U - TFT-LCD edging anchor clamps for base plate etching

Info

Publication number: CN216160941U
Application number: CN202122207171.XU
Authority: CN
Inventors: 江梦华; 岳伟; 马建彪; 苗聪
Original assignee: Wuhu Token Sciences Co Ltd
Current assignee: Wuhu Token Sciences Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-04-01
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a fixture for etching a TFT-LCD edging substrate, which comprises a fixed table, an upper limiting rod, a lower limiting rod and bearing contact thorns, wherein the upper limiting rod and the lower limiting rod are connected on the fixed table, the upper limiting rod and the lower limiting rod are positioned on the same side of the fixed table and are arranged up and down, and the bearing contact thorns are arranged on the bottom surface of the upper limiting rod and the top surface of the lower limiting rod. The fixed station is installed on the etching basket, the TFT-LCD substrate is placed between the upper limiting rod and the lower limiting rod, and the TFT-LCD substrate is contacted with the bearing contact prick. The upper limiting rod and the lower limiting rod are not directly contacted in the process of etching the end face of the TFT-LCD substrate, so that the end face of the TFT-LCD substrate cannot cut the limiting rods, the TFT-LCD substrate cannot be clamped by the limiting rods to cause deformation stress of the TFT-LCD substrate, and the technical problem in the prior art is solved.

Description

TFT-LCD edging anchor clamps for base plate etching

Technical Field

The utility model belongs to the technical field of substrate etching, and particularly relates to a fixture for etching a TFT-LCD edging substrate.

Background

With the global LCD productivity layout change, the Chinese market share promotion panel industry experiences the rise and development of Japan-Korea-Chinese manufacturers, and the Chinese market becomes a necessary place for the manufacturers at home and abroad. The new market for adjusting the capacity layout by samsung and LGD of the leading enterprises in the industry in 2017 promotes the price of the LCD panel to bounce at the bottom, the panel enterprises in China benefit to timely supplement the gap of market demands, and meanwhile, the panel plants in China grow up in the aspects of capacity expansion, goods output increase, technology improvement and the like and are also benefited by the rapid expansion of the electronic product market in China, the panel plants in China actively expand the goods output, and the goods output of the domestic enterprises such as Beijing east, Tianma and Huaxing photoelectric achieves the leading level of the industry. With the expansion of display panel production lines in Beijing east, Huaxing photoelectricity, Nanjing BOE (original panda), Huike electronics and other disputes, the market share of China in the global display industry is expected to continue to increase. According to the research data of the Chinese industry research network, the proportion of the liquid crystal panel in China to the global capacity is increased from less than 4% in 2010 to 22% in 2015. At present, the shipment area of the continental faceplate in China accounts for more than 30 percent of the whole world. With the production of the domestic panel huge advanced production line, China is just like the biggest panel producing nation all over the world. The market demand of the photoelectric glass finishing matching industry can be directly influenced by the improvement of the share of the Chinese flat panel display industry.

The requirements of flat panel display products are continuously improved, the rapid growth of the supporting industry is driven along with the development of the flat panel display industry and the improvement of the living standard of people, the requirements of consumers on display technologies and display products are also continuously improved, the flat panel display products are continuously developed towards the directions of thinness, lightness, energy conservation, high precision and the like, and the requirements on the precision and the performance of production equipment of flat panel display devices and related component supporting industries such as thinning, film coating, yellow light, cutting and the like are higher and higher. For example, the glass substrates used for flat panel displays are becoming thinner and thinner, for example, the thickness of 4.3 inch lcd glass substrates is gradually decreased from 1mm to 0.6mm, 0.4mm and 0.3mm, and further decreased to 0.2mm, 0.15mm or even thinner, which is a serious challenge for the thinning industry, and the chemical etching thinning method utilizes the chemical reaction (forming "silicon tetrafluoride" SiF4) generated by glass and chemical solution (HF), and different physical actions are added to achieve the purpose of thinning the panel. The advantages are that: 1. the thinning speed is high, and the method is suitable for industrial production; 2. the acid concentration may be adjusted as needed to control the thinning rate. The disadvantages are that: the surface quality of the thinned back panel is difficult to control, and a plurality of chemical thinning modes need subsequent polishing treatment. The existing chemical etching thinning method is mainly classified as follows: dip multi-piece vertical soaking, Spray vertical spraying and Lascade waterfall flow type.

The clamp for limiting the movement of the substrate in the Dip type and Spray type etching processes is used for thinning the G3.5, G4.5 and G5 generation panels at present, the section is weaker and sharper after edging and etching the substrate before laminating, especially when the thickness is less than 0.4mm, the clamp is easy to cut, the edge of the substrate is damaged, and the defects of etching damage, liquid seepage and the like are caused.

At present, no matter the clamp used by the Dip type or the Spray type etching mode, the end face of the substrate is in contact with the clamp in the etching process, the substrate can shake along with the operation of equipment and the movement of a tool, so that the contact positions of the substrate and the clamps are stressed to different degrees, and the substrate can be damaged and seeped once the sharp edge of the substrate after etching is cut and clamped on the clamp. The substrate is clamped by the clamp in shaking to cause deformation and stress of the substrate, and the contact stress position of the fragile substrate section and the clamp is damaged or damaged. The situation is inevitably analyzed in the prior art, the position of the substrate can be calibrated in time only through operation of process personnel, the jitter degree of the substrate in the process of equipment operation and tool movement is reduced, and the adverse incidence rate is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve one of the technical problems in the prior art, and therefore the utility model aims to provide the clamp for etching the TFT-LCD edging substrate, which has a simple structure and is convenient to use, and can prevent the TFT-LCD substrate from being in direct contact with the limiting rod, so that the end surface of the TFT-LCD substrate cannot cut the limiting rod, and the limiting rod cannot clamp the TFT-LCD substrate to cause the deformation stress of the TFT-LCD substrate.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a TFT-LCD edging anchor clamps for base plate etching, includes the fixed station, goes up the spacing pole, down the spacing pole and bears the contact thorn, go up the spacing pole and connect on the fixed station with the spacing pole down, go up the spacing pole and lie in the same one side of fixed station with the spacing pole down, and arrange from top to bottom, go up the bottom surface of spacing pole and the top surface of spacing pole down all be equipped with and bear the contact thorn.

Furthermore, the fixed station is installed on the etching basket, the TFT-LCD substrate is placed between the upper limiting rod and the lower limiting rod, and the TFT-LCD substrate is contacted with the bearing contact prick.

Furthermore, the bearing contact pricks are bent towards the inner side, the TFT-LCD substrate is contacted with the arc surface of the bearing contact pricks, and the bearing contact pricks are designed towards the inner side of the clamp.

Furthermore, go up the spacing pole and all connect on the fixed station with the slope of spacing pole down, go up the opening between spacing pole and the spacing pole down and to keeping away from the direction of fixed station gradually increase.

Furthermore, the bearing contact pricks on the upper limiting rod and the lower limiting rod are gradually increased from one end close to the fixed table to the direction far away from the fixed table.

The technical scheme adopted by the utility model has the advantages that:

the fixing table is used for fixing the clamp on the etching basket; the upper limiting rod and the lower limiting rod are mainly used for limiting the moving range of the TFT-LCD substrate, and the bearing contact pricks are used for limiting the moving range of the TFT-LCD substrate and preventing the limiting rods from clamping the end face of the TFT-LCD substrate. The TFT-LCD substrate is directly contacted with the bearing contact prick in the clamp, the bearing contact prick is designed to face the inner side of the clamp, the bearing contact prick is contacted with the edge of the TFT-LCD substrate in the etching process of the TFT-LCD substrate and is not directly contacted with the end face of the TFT-LCD substrate; the risk that the clamp clamps the TFT-LCD substrate is greatly reduced; meanwhile, the bearing contact pricks bend towards the inner side, and the end face of the TFT-LCD substrate is not stressed when in contact. When the fixture is used for etching TFT-LCD glass, the defects of damage, liquid seepage and the like caused by the interference of the fixture on a TFT-LCD substrate in the etching process can be effectively improved, and particularly, the occurrence proportion of etching damage of G4.5 and G5 full-sheet thinning edging substrates below 0.4t is greatly reduced.

Drawings

The utility model is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic view of a fixture according to the present invention;

FIG. 2 is a schematic view of the use of the clamp of the present invention.

The labels in the above figures are respectively: 1. a fixed table; 2. an upper limiting rod; 3. a lower limit lever; 4. and carrying the contact pins.

Detailed Description

In the present invention, it is to be understood that the term "length"; "Width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; "circumferential" and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the utility model.

As shown in fig. 1 and 2, a TFT-LCD edging substrate etching fixture comprises a fixing table 1, an upper limiting rod 2, a lower limiting rod 3 and a bearing contact spine 4, wherein the upper limiting rod 2 and the lower limiting rod 3 are connected to the fixing table 1, the upper limiting rod 2 and the lower limiting rod 3 are located on the same side of the fixing table 1 and are arranged up and down, and the bottom surface of the upper limiting rod 2 and the top surface of the lower limiting rod 3 are both provided with the bearing contact spine 4. The fixed station 1 is arranged on the etching basket, the TFT-LCD substrate is arranged between the upper limiting rod 2 and the lower limiting rod 3, and the TFT-LCD substrate is contacted with the bearing contact prick 4. The upper limiting rod 2 and the lower limiting rod 3 are not directly contacted in the end face etching process of the TFT-LCD substrate 5, so that the end face of the TFT-LCD substrate cannot cut the limiting rods, the TFT-LCD substrate cannot be clamped by the limiting rods to cause deformation stress of the TFT-LCD substrate, and the technical problem in the prior art is solved.

The bearing contact spine 4 is bent inwards, the TFT-LCD substrate is contacted with the arc surface of the bearing contact spine 4, and the bearing contact spine 4 is designed towards the inner side of the clamp, so that the TFT-LCD substrate is ensured not to be contacted with the sharp corner of the bearing contact spine 4.

The upper limiting rod 2 and the lower limiting rod 3 are obliquely connected to the fixing table 1, and an opening between the upper limiting rod 2 and the lower limiting rod 3 is gradually increased towards a direction away from the fixing table 1. The bearing contact thorns 4 on the upper limiting rod 2 and the lower limiting rod 3 are gradually increased from one end close to the fixed table 1 to the direction far away from the fixed table 1, and the distance between the bearing contact thorns 4 on the upper limiting rod 2 and the bearing contact thorns 4 on the lower limiting rod 3 is ensured to be unchanged.

The bearing contact pricks 4 are made of materials with certain flexibility, so that the bearing strength is ensured, and the TFT-LCD substrate is not damaged.

The fixing table 1 is provided with a mounting hole 11, which is convenient for fixing the fixing table 1 on the etching basket.

The utility model is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the utility model is not limited by the above-mentioned manner, and it is within the scope of the utility model to adopt various insubstantial modifications of the technical solution of the utility model or to apply the concept and technical solution of the utility model directly to other occasions without modification.

Claims

1. The utility model provides a TFT-LCD edging anchor clamps for base plate etching which characterized in that: including fixed station (1), go up spacing pole (2), spacing pole (3) down and bear contact thorn (4), go up spacing pole (2) and connect on fixed station (1) with spacing pole (3) down, go up spacing pole (2) and spacing pole (3) down and lie in the same one side of fixed station (1), and arrange from top to bottom, go up the bottom surface of spacing pole (2) and the top surface of spacing pole (3) down and all be equipped with and bear contact thorn (4).

2. The jig for etching a TFT-LCD edged substrate according to claim 1, wherein: the fixed platform (1) is arranged on the etching basket, the TFT-LCD substrate is arranged between the upper limiting rod (2) and the lower limiting rod (3), and the TFT-LCD substrate is contacted with the bearing contact prick (4).

3. The jig for etching a TFT-LCD edged substrate according to claim 2, wherein: the bearing contact pricks (4) are bent towards the inner side, the TFT-LCD substrate is contacted with the arc surface of the bearing contact pricks (4), and the bearing contact pricks (4) are designed towards the inner side of the clamp.

4. The fixture for etching a TFT-LCD edged substrate according to claim 3, wherein: go up spacing pole (2) and all connect on fixed station (1) with the slope of spacing pole (3) down, go up the opening between spacing pole (2) and the spacing pole (3) down and to keeping away from the direction of fixed station (1) and increase gradually.

5. The fixture for etching a TFT-LCD edged substrate according to claim 4, wherein: the bearing contact thorns (4) on the upper limiting rod (2) and the lower limiting rod (3) are gradually increased from one end close to the fixed table (1) to the direction far away from the fixed table (1).