A laser TP structure for a touch display screen
By using a laser TP structure on the sensor of the touch display screen, ITO and AG patterns are engraved in two sets of laser lines, the problems of cumbersome production processes and high costs in the existing technology are solved, and a more efficient and economical production method is achieved.
Patent Information
- Application Number
- CN202420196250.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-01-25
AI Technical Summary
During the production process of existing touch displays, ITO and AG etching usually use yellow light etching, resulting in cumbersome production processes, high cost and low efficiency.
Using a laser TP structure, the ITO pattern and AG wiring area are engraved on the sensor through laser engraving, and two sets of laser lines are engraved to ensure appropriate laser power to avoid etching or short circuit.
Simplify the production process, reduce production costs, improve work efficiency, and achieve faster and cheaper touch screen production.
Smart Images
Figure CN222734468U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of touch display screens, in particular to a laser TP structure of a touch display screen. Background Art
[0002] At present, with the continuous advancement of science and technology, the application of electronic display touch screens is becoming more and more extensive, and the market competition for touch screens is becoming more and more fierce. The current display screens are generally etched by yellow light during ITO and AG engraving, which makes the production process very cumbersome and complicated, resulting in low production costs and production efficiency of existing display screens. Therefore, the market is in urgent need of a more efficient and cheaper touch screen. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a laser TP structure for a touch display screen.
[0004] The purpose of this utility model is achieved through the following technical solutions:
[0005] A laser TP structure of a touch display screen comprises: a display module, a display FPC is arranged at the bottom of the display module; the display module comprises a sensor, an ITO laser engraved line, a silk-screen silver paste, a laser silver paste and a silver paste mark are arranged on the front of the sensor; an AG wiring area is arranged on the front of the sensor, and an AG routing pattern is arranged on the AG wiring area.
[0006] In one of the embodiments, a binding position is arranged on the left side of the bottom of the front side of the sensor, a sensor particle is arranged on the binding position, and the display FPC is fixed on the binding position.
[0007] In one embodiment, the ITO laser engraved line is formed in the center of the front side of the sensor by laser engraving, and the area of the ITO laser engraved line occupies 80-85% of the whole area of the sensor.
[0008] In one embodiment, a peripheral ITO is disposed on the periphery of the top and bottom of the sensor, and the peripheral ITO is cut into small pieces by laser.
[0009] In one embodiment, the silver paste mark is arranged on the right side of the periphery of the bottom of the sensor, and the silver paste mark is printed on the sensor by silk screen printing. The front side of the silver paste mark is square in shape for laser positioning.
[0010] In one of the embodiments, the silk-screen silver paste is silk-screened between the ITO laser engraved lines and the peripheral ITO, the silk-screen silver paste forms a square around the ITO laser engraved lines, and the four corners are passivated.
[0011] In one of the embodiments, before the AG laser engraving on the sensor, it is necessary to typeset the pattern and make a silk-screen AG mesh, and the AG mesh is used for marking the laser equipment.
[0012] In one of the embodiments, when the ITO laser is used for laser engraving, the laser power should be small and only ITO should be engraved, and it is necessary to avoid damaging the conductive film in the VA area. When engraving the AG line, the AG and ITO need to be engraved together, and a larger laser power is required to avoid short circuit.
[0013] In one embodiment, the display FPC is a flexible printed circuit board, and the size of the front side is smaller than the size of the front side of the display module.
[0014] In one of the embodiments, the laser engraving on the sensor needs to be debugged and confirmed according to the thickness distance of the conductive film, the size of the laser head, the power, etc.
[0015] Compared with the prior art, the utility model has at least the following advantages:
[0016] The laser TP structure of the touch display screen of the utility model divides the ITO pattern and the AG wiring area on the sensor into two groups of laser engraved lines, respectively engraves the ITO pattern and the AG wiring pattern, and at the same time typesets the pattern and makes a silk-screen AG mesh, so that the AG mesh is used for laser mark recognition, which can avoid the laser line engraving deviation, and at the same time, laser engraves the large ITO FILM after typeset, and divides the laser lines into two groups. One is to engrave the ITO line, and the laser power is small, and only the ITO is engraved to avoid engraving the VA area FILM. The second is to engrave the AG line, and the AG and ITO are cut together, which requires a larger laser power to avoid short circuit. When the pattern is laser engraved, the SENSOR is cut to cut out a single SENSOR semi-finished product, and then the FPC is bound and the LENS is bonded to complete a TP finished product. Therefore, the design scheme only needs to use laser engraving, which can not only reduce the production cost, but also improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 This is a schematic diagram of the overall front structure of the laser TP structure of the touch display screen of the utility model;
[0019] Figure 2 It is a schematic diagram of the front structure of the laser TP structure of the touch display screen of the present invention.
[0020] In the figure: 1. Display module; 2. Display FPC; 11. Sensor; 12. ITO laser engraving; 13. Silk-screen silver paste; 14. Peripheral ITO; 15. Binding position; 16. Laser silver paste; 17. Silver paste label. DETAILED DESCRIPTION
[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.
[0022] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0023] Unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0025] like Figure 1-2As shown, a laser TP structure of a touch display screen includes: a display module 1, a display FPC 2 is arranged at the bottom of the display module 1; the display module 1 includes a sensor 11, and an ITO laser engraving line 12, a silk screen silver paste 13, a laser silver paste 16 and a silver paste mark 17 are arranged on the front of the sensor 11; an AG wiring area is arranged on the front of the sensor 11, and an AG wiring pattern is arranged on the AG wiring area. It should be noted that before laser engraving, it is necessary to design the ITO pattern and the AG wiring area first, and then engrave the ITO pattern and the AG wiring pattern. When engraving the pattern, it is necessary to layout the pattern first, and make a silk screen AG mesh, and laser engrave the large conductive film after layout, and there are two groups of laser lines. One is to engrave the ITO line, and the laser power should be small, only engraving the ITO to avoid engraving the VA area FILM, and the second is to engrave the AG line, and cut the AG and ITO together, and the laser power needs to be larger to avoid short circuit.
[0026] like Figure 1-2 As shown, in one embodiment, a binding position 15 is provided on the left side of the bottom of the front side of the sensor 11, a single sensor is provided on the binding position 15, and the display FPC2 is fixed on the binding position 15. It should be noted that the display screen FPC2 needs to wait, and after the pattern is laser engraved, the sensor 11 is cut, and the single sensor semi-finished product is cut out, and then the FPC is bound and the lens is bonded, and the gap of the binding position 15 needs to be engraved to avoid short circuit.
[0027] like Figure 1-2 As shown, in one embodiment, an ITO laser engraved line 12 is engraved by laser in the center of the front of the sensor 11, and the area of the ITO laser engraved line 12 occupies 80% to 85% of the overall area of the sensor 11. The silk-screened silver paste 13 is silk-screened between the ITO laser engraved line 12 and the peripheral ITO 14, and the silk-screened silver paste 13 surrounds the ITO laser engraved line 12 to form a square, and the four corners are passivated. It should be noted that the silk-screened silver paste 13 surrounds the ITO laser engraved line 12 and wraps it up.
[0028] like Figure 1-2 As shown, in one embodiment, peripheral ITO 14 is provided on the periphery of the top and bottom of the sensor 11, and the peripheral ITO 14 is cut into small pieces by laser. It should be noted that this design can avoid the influence of static electricity.
[0029] like Figure 1-2 As shown, in one embodiment, a silver paste mark 17 is arranged on the right side of the periphery of the bottom of the sensor 11, and the silver paste mark 17 is printed on the sensor 11 by silk screen printing. The front of the silver paste mark 17 is square in shape for laser positioning.
[0030] like Figure 1-2As shown, in one embodiment, before the AG laser engraving on the sensor 11, it is necessary to layout the pattern and make a silk-screen AG mesh, and the AG mesh is used for marking the laser equipment. It should be noted that this design can ensure the accuracy of laser engraving.
[0031] like Figure 1-2 As shown, in one embodiment, when the ITO laser line 12 is laser engraved, the laser power should be small, and only ITO is engraved, and it is necessary to avoid damaging the conductive film in the VA area. When engraving the AG line, AG and ITO need to be cut together, and the laser power needs to be larger to avoid short circuit.
[0032] like Figure 1-2 As shown, in one embodiment, the display FPC2 is a flexible circuit board, and the size of the front side is smaller than the size of the front side of the display module 1. It should be noted that the display FPC2 can be bent to the back of the sensor 11, thereby reducing the area of the front side of the display module 1, thereby reducing the size of the display module 1.
[0033] like Figure 1-2 As shown, in one embodiment, the laser engraving on the sensor 11 needs to be debugged and confirmed according to the thickness distance of the conductive film, the size of the laser head, the power, etc.
[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A laser TP structure for a touch display screen, characterized in that: include: A display module (1), wherein a display FPC (2) is arranged at the bottom of the display module (1); The display module (1) comprises a sensor (11), and the front surface of the sensor (11) is provided with ITO laser engraving lines (12), silk screen silver paste (13), laser silver paste (16) and silver paste marks (17); The front side of the sensor (11) is provided with an AG wiring area, and an AG routing pattern is provided on the AG wiring area.
2. The laser TP structure of the touch display screen according to claim 1, characterized in that: A binding position (15) is arranged on the left side of the bottom of the front side of the sensor (11), a sensor particle is arranged on the binding position (15), and the display FPC (2) is fixed on the binding position (15).
3. The laser TP structure of the touch display screen according to claim 2, characterized in that: The ITO laser engraved line (12) is engraved at the center of the front side of the sensor (11) by laser, and the area of the ITO laser engraved line (12) occupies 80% to 85% of the entire area of the sensor (11).
4. The laser TP structure of the touch display screen according to claim 1, characterized in that: Peripheral ITO (14) is arranged on the periphery of the top and bottom of the sensor (11), and the peripheral ITO (14) is cut into small pieces by laser.
5. The laser TP structure of the touch display screen according to claim 1, characterized in that: The silver paste mark (17) is arranged on the right side of the outer periphery of the bottom of the sensor (11), the silver paste mark (17) is printed on the sensor (11) by silk screen printing, and the front of the silver paste mark (17) is square in shape for laser positioning.
6. The laser TP structure of the touch display screen according to claim 4, characterized in that: The silk-screen silver paste (13) is silk-screened between the ITO laser engraved line (12) and the peripheral ITO (14), and the silk-screen silver paste (13) surrounds the ITO laser engraved line (12) to form a square, and the four corners are passivated.
7. The laser TP structure of the touch display screen according to claim 1, characterized in that: Before the AG laser engraving on the sensor (11), it is necessary to layout the pattern and make a silk-screen AG mesh, and the AG mesh is used for marking the laser equipment.
8. The laser TP structure of the touch display screen according to claim 1, characterized in that: When the ITO laser scribing (12) is laser scribing, the laser power should be small and only ITO should be scribed, so as to avoid scratching the conductive film in the VA area. When scribing the AG line, the AG and ITO should be cut together, so the laser power should be larger to avoid short circuit.
9. The laser TP structure of the touch display screen according to claim 1, characterized in that: The display FPC (2) is a flexible circuit board, and the size of the front side is smaller than the size of the front side of the display module (1).
10. The laser TP structure of the touch display screen according to claim 1, characterized in that: The laser engraving on the sensor (11) needs to be debugged and confirmed according to the thickness distance of the conductive film, the size of the laser head, and the power.