Mobile phone touch screen and production method thereof

Abstract

The invention belongs to the technical field of mobile phone touch screens, and provides a mobile phone touch screen and a production method thereof.The mobile phone touch screen comprises a composite protective layer, an optical adhesive layer, a glass substrate and a protective film; the composite protective layer is positioned on the optical adhesive layer; the glass substrate is located between the optical adhesive layer and the protective film; conductive film layers are arranged on the upper side and the lower side of the glass substrate. According to the mobile phone touch screen and the production method, the problems that a traditional touch screen is complex in structure, high in production cost, prone to causing short circuit due to poor alignment and the like can be solved, and the production quality of the mobile phone touch screen is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone touch screens, and in particular to a mobile phone touch screen and a production method thereof. Background Art

[0002] The touch screen is structurally composed of an inductive liquid crystal display device, which can receive signals from the touch head or other touch actions. When the inductive display receives the touch signal, the entire touch device will execute different instructions according to the pre-written program to realize the user's touch intention. Touch screen technology first appeared in some industrial and commercial equipment, such as POS terminals, elevator buttons, etc. Touch screen technology has greatly facilitated human-computer interaction, and the touch screen itself is very durable. These characteristics have made touch screen technology have a large application and development.

[0003] With the development of mobile phone touch screen technology, people have put forward higher and higher requirements on the use of mobile phone screens. High-precision recognition of multi-touch gestures and multi-touch positions is required to meet the higher precision requirements within the touch screen. However, the current mobile phone touch screens have problems such as complex touch screen structure, high production cost, and easy line short circuit due to poor alignment, which affects the production quality of mobile phone touch screens and user experience.

[0004] Therefore, it is necessary to provide a mobile phone touch screen and a production method thereof. Summary of the invention

[0005] The present invention provides a mobile phone touch screen and a production method thereof, which can solve the problems of complex structure, high production cost, and line short circuit caused by poor alignment of traditional touch screens, and effectively ensure the production quality of the mobile phone touch screen.

[0006] The present invention provides a mobile phone touch screen, comprising: a composite protective layer, an optical adhesive layer, a glass substrate, and a protective film; the composite protective layer is located on the optical adhesive layer; the glass substrate is located between the optical adhesive layer and the protective film; and conductive film layers are also provided on the upper and lower sides of the glass substrate.

[0007] Furthermore, the composite protective layer includes an adhesive bonding layer, a protective coating, an explosion-proof layer, a tempered layer and a functional coating; the adhesive bonding layer is arranged on the upper side of the optical adhesive layer, and the protective coating is arranged on the upper side of the adhesive bonding layer for anti-reflection protection; the explosion-proof layer is arranged on the upper side of the protective coating; the tempered layer is arranged on the upper side of the explosion-proof layer; the functional coating is arranged on the upper side of the tempered layer for providing oleophobic and hydrophobic protection functions.

[0008] Furthermore, a positioning release film is arranged on the lower surface of the composite protective layer, a positioning strip is arranged on the lower surface of the positioning release film, and a positioning strip protective film is arranged on the lower surface of the positioning strip.

[0009] Furthermore, the optical adhesive layer includes an upper base adhesive layer, a base layer, an electrostatic layer and a lower base adhesive layer; the upper base adhesive layer is bonded to the upper surface of the base layer, the base layer is bonded to the upper surface of the electrostatic layer, and the electrostatic layer is bonded to the upper surface of the lower base adhesive layer; and a shading film is arranged on both sides of the edge of the base layer.

[0010] Furthermore, the adhesive in the optical adhesive layer is OCA optical adhesive or acrylic adhesive.

[0011] Furthermore, the conductive film layer includes a high temperature resistant polyester film, an indium tin oxide sensing layer and a driving layer. The indium tin oxide sensing layer is arranged on the upper surface of the high temperature resistant polyester film, and the high temperature resistant polyester film is arranged on the upper surface of the driving layer.

[0012] A method for producing a mobile phone touch screen, for producing a mobile phone touch screen, comprises the following steps:

[0013] Step 1, cleaning the selected glass substrate;

[0014] Step 2: Lay the cleaned glass substrate flat on a printing device, and print on the cleaned glass substrate through the printing device based on a set printing version and ink type;

[0015] Step 3: Bake and solidify the printed glass substrate according to the set temperature and time;

[0016] Step 4: Conduct negative film inspection on the baked and cured glass substrate;

[0017] Step 5: Etch the glass substrate that has passed the negative film inspection according to the ITO production etching process;

[0018] Step 6: Punch holes, cut materials, and glue the etched glass substrate, and put the composite protective layer, optical adhesive layer, glass substrate, protective film, and printed circuit board into a pressing device and press them into one;

[0019] Step 7: Test the pressed-in-one mobile phone touch screen and inspect the finished product.

[0020] Furthermore, the printed circuit board in step six is ​​a flexible circuit board, and the flexible circuit board is pressed onto the conductive film layer of the glass substrate.

[0021] Furthermore, the pressed-in-one mobile phone touch screen is tested and the finished product is inspected, including:

[0022] Configure a screen touch simulation device and a test control platform, the screen touch simulation device is used to perform a touch simulation test on the mobile phone touch screen, and the test control platform is used to send a touch simulation test execution command to the screen touch simulation device;

[0023] Configure a screen touch simulation test process recording device, the screen touch simulation test process recording device includes multiple cameras, the screen touch simulation test process recording device is connected to the test control platform, and the screen touch simulation test process recording device is used to shoot and record the screen touch simulation test process video and send it to the test control platform;

[0024] Using the test control platform to send a touch simulation test execution command to the screen touch simulation device;

[0025] Using the test control platform, the screen touch simulation test process recording device is controlled to capture a video of the process of the screen touch simulation device executing the touch simulation test execution command;

[0026] Extract the target from the process video, obtain several target test images of different parts on the mobile phone touch screen, compare the target test images with the reference images in the preset target test image database in the test control platform frame by frame, and obtain the frame by frame similarity comparison results;

[0027] The frame-by-frame similarity comparison results are analyzed to determine the touch accuracy and sensitivity of different parts of the mobile phone touch screen.

[0028] Furthermore, the pressed-to-one mobile phone touch screen is tested and the finished product is inspected, which also includes: conducting a continuity test on the finished mobile phone touch screen, and the specific steps are as follows:

[0029] A test circuit for testing the conduction performance of the mobile phone touch screen, a control circuit for controlling the test circuit, and a signal generator are provided;

[0030] Obtain the test requirements and categories of the mobile phone touch screen conduction performance;

[0031] Based on the test requirements and class items, obtain the test control parameters of the test circuit;

[0032] According to the test control parameters, a control signal for generating the test control parameters is sent out through a signal generator, and based on the control signal, a control circuit implements specific control of the test circuit; wherein the control signal is generated based on a matching correspondence library of set test control parameters and control signals, and the matching is obtained.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects: it can solve the problems of complex structure, high production cost, and line short circuit caused by poor alignment of traditional touch screens, and effectively ensure the production quality of mobile phone touch screens.

[0034] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0035] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 It is a structural schematic diagram of a mobile phone touch screen;

[0038] Figure 2 It is a schematic diagram of the structure of the composite protective layer;

[0039] Figure 3 The present invention is a schematic diagram of the steps of a method for producing a mobile phone touch screen. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0041] The present invention provides a mobile phone touch screen, such as Figure 1 As shown, it includes: a composite protective layer, an optical adhesive layer, a glass substrate, and a protective film; the composite protective layer is located on the optical adhesive layer; the glass substrate is located between the optical adhesive layer and the protective film; and conductive film layers are also provided on the upper and lower sides of the glass substrate.

[0042] The working principle of the above technical solution is: in order to realize the design of a mobile phone touch screen, the present invention proposes a composite protective layer, an optical adhesive layer, a glass substrate, and a protective film; the composite protective layer is located on the optical adhesive layer; the glass substrate is located between the optical adhesive layer and the protective film; and a conductive film layer is also provided on the upper and lower sides of the glass substrate.

[0043] The beneficial effect of the above technical solution is: the solution provided by this embodiment can solve the problems of complex structure, high production cost, and line short circuit caused by poor alignment of traditional touch screens, and effectively ensure the production quality of mobile phone touch screens.

[0044] In one embodiment, Figure 2As shown, the composite protective layer includes an adhesive bonding layer, a protective coating, an explosion-proof layer, a tempered layer and a functional coating; the adhesive bonding layer is arranged on the upper side of the optical adhesive layer, the protective coating is arranged on the upper side of the adhesive bonding layer for anti-reflection protection; the explosion-proof layer is arranged on the upper side of the protective coating; the tempered layer is arranged on the upper side of the explosion-proof layer; the functional coating is arranged on the upper side of the tempered layer for providing oleophobic and hydrophobic protection functions.

[0045] The working principle of the above technical scheme is: in order to realize the design of the composite protective layer, the present invention proposes an adhesive bonding layer, a protective coating, an explosion-proof layer, a tempered layer and a functional coating; the adhesive bonding layer is arranged on the upper side of the optical adhesive layer, and the protective coating is arranged on the upper side of the adhesive bonding layer for anti-reflection protection; the explosion-proof layer is arranged on the upper side of the protective coating; the tempered layer is arranged on the upper side of the explosion-proof layer; the functional coating is arranged on the upper side of the tempered layer for providing oleophobic and hydrophobic protection functions.

[0046] The beneficial effect of the above technical solution is: by adopting the solution provided by this embodiment, by setting a composite protective layer, the relevant protective functions of the mobile phone touch screen can be effectively guaranteed.

[0047] In one embodiment, a positioning release film is disposed on the lower surface of the composite protective layer, a positioning strip is disposed on the lower surface of the positioning release film, and a positioning strip protective film is disposed on the lower surface of the positioning strip.

[0048] The working principle of the above technical solution is: in order to better ensure the firm connection and correct alignment of the composite protective layer, precise positioning is required. The lower surface of the composite protective layer in the present invention is provided with a positioning release film, the lower surface of the positioning release film is provided with a positioning strip, and the lower surface of the positioning strip is provided with a positioning strip protective film.

[0049] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, through the design of the positioning release film, the positioning strip and the positioning strip protective film, the positioning of the composite protective layer can be ensured to be firm and reliable, so as to avoid the occurrence of misalignment problems.

[0050] In one embodiment, the optical adhesive layer includes an upper base adhesive layer, a base layer, an electrostatic layer and a lower base adhesive layer; the upper base adhesive layer is bonded to the upper surface of the base layer, the base layer is bonded to the upper surface of the electrostatic layer, and the electrostatic layer is bonded to the upper surface of the lower base adhesive layer; a shading film is arranged on both sides of the edge of the base layer.

[0051] The working principle of the above technical scheme is: the optical adhesive layer of the present invention adopts an upper base adhesive layer, a base surface layer, an electrostatic layer and a lower base adhesive layer; the upper base adhesive layer is bonded to the upper surface of the base surface layer, the base surface layer is bonded to the upper surface of the electrostatic layer, and the electrostatic layer is bonded to the upper surface of the lower base adhesive layer; and light-shielding films are arranged on both sides of the edge of the base surface layer.

[0052] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the optical adhesive layer composed of the base adhesive layer, the base surface layer, the electrostatic layer and the lower base surface adhesive layer can ensure the bonding quality of the optical adhesive layer.

[0053] In one embodiment, the adhesive in the optical adhesive layer is OCA optical adhesive or acrylic adhesive.

[0054] The working principle of the above technical solution is that the bonding performance of OCA optical glue or acrylic glue can meet the bonding requirements of the adhesive in the optical glue layer.

[0055] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by using OCA optical glue or acrylic glue as the adhesive in the optical adhesive layer, the bonding requirements of the adhesive in the optical adhesive layer can be met.

[0056] In one embodiment, the conductive film layer includes a high temperature resistant polyester film, an indium tin oxide sensing layer and a driving layer. The indium tin oxide sensing layer is arranged on the upper surface of the high temperature resistant polyester film, and the high temperature resistant polyester film is arranged on the upper surface of the driving layer.

[0057] The working principle of the above technical solution is: in order to achieve the conductive performance of the conductive film layer, the present invention arranges a high-temperature resistant polyester film, an indium tin oxide sensing layer and a driving layer as the conductive film layer, the indium tin oxide sensing layer is arranged on the upper surface of the high-temperature resistant polyester film, and the high-temperature resistant polyester film is arranged on the upper surface of the driving layer.

[0058] The beneficial effect of the above technical solution is that by arranging the high temperature resistant polyester film, the indium tin oxide sensing layer and the driving layer as the conductive film layer, the conductive performance of the conductive film layer can be guaranteed.

[0059] A method for producing a mobile phone touch screen, such as Figure 3 As shown, the method for producing a mobile phone touch screen includes the following steps:

[0060] Step 1, cleaning the selected glass substrate;

[0061] Step 2: Lay the cleaned glass substrate flat on a printing device, and print on the cleaned glass substrate through the printing device based on a set printing version and ink type;

[0062] Step 3: Bake and solidify the printed glass substrate according to the set temperature and time;

[0063] Step 4: Conduct negative film inspection on the baked and cured glass substrate;

[0064] Step 5: Etch the glass substrate that has passed the negative film inspection according to the ITO production etching process;

[0065] Step 6: Punch holes, cut materials, and glue the etched glass substrate, and put the composite protective layer, optical adhesive layer, glass substrate, protective film, and printed circuit board into a pressing device and press them into one;

[0066] Step 7: Test the pressed-in-one mobile phone touch screen and inspect the finished product.

[0067] The working principle of the above technical solution is as follows: in order to realize the production method of the mobile phone touch screen, the present invention first cleans the selected glass substrate; then lays the cleaned glass substrate flat on the printing equipment, and based on the set printing version and ink model, prints on the cleaned glass substrate through the printing equipment; then, the printed glass substrate is baked and cured according to the set temperature and time; then, the baked and cured glass substrate is subjected to negative film inspection; then, according to the ITO production etching process, the glass substrate that has passed the negative film inspection is etched; then, the etched glass substrate is punched, blanked, and combined with glue, and the composite protective layer, optical adhesive layer, glass substrate, protective film, and printed circuit board are placed in a pressing device and pressed into one; finally, the pressed mobile phone touch screen is tested and the finished product is inspected.

[0068] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, through the production method of the mobile phone touch screen, the production of the mobile phone touch screen can be realized, and the production quality of the mobile phone touch screen can be guaranteed.

[0069] In one embodiment, the printed circuit board in step six is ​​a flexible circuit board, and the flexible circuit board is laminated on the conductive film layer of the glass substrate.

[0070] The working principle of the above technical solution is: the printed circuit board is configured as a flexible circuit board, and the flexible circuit board is pressed onto the conductive film layer of the glass substrate to ensure the function of the conductive film layer.

[0071] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the printed circuit board is configured as a flexible circuit board, and the flexible circuit board is pressed onto the conductive film layer of the glass substrate, so that the function of the conductive film layer can be guaranteed.

[0072] In one embodiment, the pressed-in-one mobile phone touch screen is tested and the finished product is inspected, including:

[0073] Configure a screen touch simulation device and a test control platform, the screen touch simulation device is used to perform a touch simulation test on the mobile phone touch screen, and the test control platform is used to send a touch simulation test execution command to the screen touch simulation device;

[0074] Configure a screen touch simulation test process recording device, the screen touch simulation test process recording device includes multiple cameras, the screen touch simulation test process recording device is connected to the test control platform, and the screen touch simulation test process recording device is used to shoot and record the screen touch simulation test process video and send it to the test control platform;

[0075] Using the test control platform to send a touch simulation test execution command to the screen touch simulation device;

[0076] Using the test control platform, the screen touch simulation test process recording device is controlled to capture a video of the process of the screen touch simulation device executing the touch simulation test execution command;

[0077] Extract the target from the process video, obtain several target test images of different parts on the mobile phone touch screen, compare the target test images with the reference images in the preset target test image database in the test control platform frame by frame, and obtain the frame by frame similarity comparison results;

[0078] The frame-by-frame similarity comparison results are analyzed to determine the touch accuracy and sensitivity of different parts of the mobile phone touch screen.

[0079] The working principle of the above technical solution is: in order to achieve effective testing of the pressed-in-one mobile phone touch screen and accurate inspection of the finished product, the present invention adopts the method of recording the touch test process video for inspection, and the specific steps are:

[0080] Configure a screen touch simulation device and a test control platform, the screen touch simulation device is used to perform a touch simulation test on the mobile phone touch screen, and the test control platform is used to send a touch simulation test execution command to the screen touch simulation device;

[0081] Configure a screen touch simulation test process recording device, the screen touch simulation test process recording device includes multiple cameras, the screen touch simulation test process recording device is connected to the test control platform, and the screen touch simulation test process recording device is used to shoot and record the screen touch simulation test process video and send it to the test control platform;

[0082] Using the test control platform to send a touch simulation test execution command to the screen touch simulation device;

[0083] Using the test control platform, the screen touch simulation test process recording device is controlled to capture a video of the process of the screen touch simulation device executing the touch simulation test execution command;

[0084] Extract the target from the process video, obtain several target test images of different parts on the mobile phone touch screen, compare the target test images with the reference images in the preset target test image database in the test control platform frame by frame, and obtain the frame by frame similarity comparison results;

[0085] The frame-by-frame similarity comparison results are analyzed to determine the touch accuracy and sensitivity of different parts of the mobile phone touch screen.

[0086] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the screen touch simulation test process is recorded and analyzed by adopting a screen touch simulation device, a test control platform, and a screen touch simulation test process recording device, thereby ensuring the quality and effect of the test.

[0087] In one embodiment, testing and finished product inspection of the pressed-in-one mobile phone touch screen also includes: conducting a continuity test on the finished mobile phone touch screen, and the specific steps are as follows:

[0088] A test circuit for testing the conduction performance of the mobile phone touch screen, a control circuit for controlling the test circuit, and a signal generator are provided;

[0089] Obtain the test requirements and categories of the mobile phone touch screen conduction performance;

[0090] Based on the test requirements and class items, obtain the test control parameters of the test circuit;

[0091] According to the test control parameters, a control signal for generating the test control parameters is sent out through a signal generator, and based on the control signal, a control circuit implements specific control of the test circuit; wherein the control signal is generated based on a matching correspondence library of set test control parameters and control signals, and the matching is obtained.

[0092] The working principle of the above technical scheme is as follows: in order to realize the conduction test of the finished mobile phone touch screen, the present invention sets a test circuit for testing the conduction performance of the mobile phone touch screen, a control circuit for controlling the test circuit, and a signal generator; then, the test requirements and categories of the conduction performance of the mobile phone touch screen are obtained; based on the test requirements and categories, the test control parameters of the test circuit are obtained; then, according to the test control parameters, a control signal for generating the test control parameters is sent through the signal generator, and based on the control signal, the control circuit implements specific control of the test circuit; wherein, the control signal is generated based on a matching correspondence library of the set test control parameters and the control signal, and is matched.

[0093] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by configuring a test circuit for testing the conductivity performance of a mobile phone touch screen, a control circuit for controlling the test circuit, and a signal generator, the quality of the conductivity test of the finished mobile phone touch screen can be effectively guaranteed.

[0094] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A mobile phone touch screen, characterized in that: include: Composite protective layer, optical adhesive layer, glass substrate, protective film; the composite protective layer is located on the optical adhesive layer; the glass substrate is located between the optical adhesive layer and the protective film; Conductive film layers are also provided on the upper and lower sides of the glass substrate.

2. A mobile phone touch screen according to claim 1, characterized in that: The composite protective layer includes an adhesive bonding layer, a protective coating, an explosion-proof layer, a tempered layer and a functional coating; the adhesive bonding layer is arranged on the upper side of the optical adhesive layer, the protective coating is arranged on the upper side of the adhesive bonding layer for anti-reflection protection; the explosion-proof layer is arranged on the upper side of the protective coating; the tempered layer is arranged on the upper side of the explosion-proof layer; the functional coating is arranged on the upper side of the tempered layer for providing oleophobic and hydrophobic protection functions.

3. A mobile phone touch screen according to claim 1, characterized in that: A positioning release film is arranged on the lower surface of the composite protective layer, a positioning strip is arranged on the lower surface of the positioning release film, and a positioning strip protective film is arranged on the lower surface of the positioning strip.

4. The mobile phone touch screen according to claim 1, characterized in that: The optical adhesive layer includes an upper base adhesive layer, a base layer, an electrostatic layer and a lower base adhesive layer; the upper base adhesive layer is bonded to the upper surface of the base layer, the base layer is bonded to the upper surface of the electrostatic layer, and the electrostatic layer is bonded to the upper surface of the lower base adhesive layer; light-shielding films are arranged on both sides of the edge of the base layer.

5. A mobile phone touch screen according to claim 4, characterized in that: The adhesive in the optical adhesive layer is OCA optical adhesive or acrylic adhesive.

6. The mobile phone touch screen according to claim 1, characterized in that: The conductive film layer includes a high temperature resistant polyester film, an indium tin oxide sensing layer and a driving layer. The indium tin oxide sensing layer is arranged on the upper surface of the high temperature resistant polyester film, and the high temperature resistant polyester film is arranged on the upper surface of the driving layer.

7. A method for producing a mobile phone touch screen, characterized in that: The method for producing a mobile phone touch screen as claimed in any one of claims 1 to 6 comprises the following steps: Step 1, cleaning the selected glass substrate; Step 2: Lay the cleaned glass substrate flat on a printing device, and print on the cleaned glass substrate through the printing device based on a set printing version and ink type; Step 3: Bake and solidify the printed glass substrate according to the set temperature and time; Step 4: Conduct negative film inspection on the baked and cured glass substrate; Step 5: Etch the glass substrate that has passed the negative film inspection according to the ITO production etching process; Step 6: Punch holes, cut materials, and glue the etched glass substrate, and put the composite protective layer, optical adhesive layer, glass substrate, protective film, and printed circuit board into a pressing device and press them into one; Step 7: Test the pressed-in-one mobile phone touch screen and inspect the finished product.

8. The method for producing a mobile phone touch screen according to claim 7, characterized in that: The printed circuit board in step six is ​​a flexible circuit board, and the flexible circuit board is pressed onto the conductive film layer of the glass substrate.

9. The method for producing a mobile phone touch screen according to claim 7, characterized in that: Test the pressed-in-one mobile phone touch screen and inspect the finished product, including: Configure a screen touch simulation device and a test control platform, the screen touch simulation device is used to perform a touch simulation test on the mobile phone touch screen, and the test control platform is used to send a touch simulation test execution command to the screen touch simulation device; Configure a screen touch simulation test process recording device, the screen touch simulation test process recording device includes multiple cameras, the screen touch simulation test process recording device is connected to the test control platform, and the screen touch simulation test process recording device is used to shoot and record the screen touch simulation test process video and send it to the test control platform; Using the test control platform to send a touch simulation test execution command to the screen touch simulation device; Using the test control platform, the screen touch simulation test process recording device is controlled to capture a video of the process of the screen touch simulation device executing the touch simulation test execution command; Extract the target from the process video, obtain several target test images of different parts on the mobile phone touch screen, compare the target test images with the reference images in the preset target test image database in the test control platform frame by frame, and obtain the frame by frame similarity comparison results; The frame-by-frame similarity comparison results are analyzed to determine the touch accuracy and sensitivity of different parts of the mobile phone touch screen.

10. The method for producing a mobile phone touch screen according to claim 7, characterized in that: Testing and finished product inspection of the pressed-in-one mobile phone touch screen also includes: conducting a continuity test on the finished mobile phone touch screen. The specific steps are as follows: A test circuit for testing the conduction performance of the mobile phone touch screen, a control circuit for controlling the test circuit, and a signal generator are provided; Obtain the test requirements and categories of the mobile phone touch screen conduction performance; Based on the test requirements and class items, obtain the test control parameters of the test circuit; According to the test control parameters, a control signal for generating the test control parameters is sent out through a signal generator, and based on the control signal, a control circuit implements specific control of the test circuit; wherein the control signal is generated based on a matching correspondence library of set test control parameters and control signals, and the matching is obtained.

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