Mobile phone screen assembly pressure calibration device

Abstract

The invention discloses a mobile phone screen assembly pressure calibration device which comprises an upper template, a base and a bearing plate located on the surface of the base, and a flexible pressure sensor is located between the upper template and the bearing plate. The flexible pressure sensor further comprises an upper base material layer and a lower base material layer, a plurality of row electrode strips distributed at intervals are arranged on the surface, facing the upper base material layer, of the lower base material layer and are arranged in parallel, and a plurality of column electrode strips distributed at intervals are arranged on the surface, facing the lower base material layer, of the upper base material layer and are arranged in parallel. The plurality of column electrode strips are arranged in parallel, and the row electrode strips and the column electrode strips are arranged at a vertical angle; a pressure-sensitive sensing film is positioned between the plurality of column electrode strips of the upper base material layer and the plurality of row electrode strips of the lower base material layer; and the upper base material layer and the lower base material layer are respectively positioned in the edge areas of the periphery of the pressure-sensitive sensing film and are connected together. The mobile phone screen assembly pressure calibration device not only can accurately sense pressure distribution, but also can conveniently extract an assembly pressure value.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone screen assembly pressure detection, and in particular to a mobile phone screen assembly pressure calibration device. Background Art

[0002] With the rapid development of intelligent manufacturing and precision assembly technology, flexible pressure sensors are urgently needed for pressure monitoring and measurement in automated production lines, robot tactile sensing, and precision equipment calibration. Among them, in the assembly process of mobile phone screens, the pressure distribution of the pressure roller and the pressure table has a crucial impact on the screen's fitting quality and product consistency. In order to ensure consistent pressure distribution, related equipment needs to be calibrated frequently. The traditional method uses disposable pressure-sensitive paper for calibration, but the cost of using pressure-sensitive paper is high, and its measurement results are difficult to digitally analyze and store. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a mobile phone screen assembly pressure calibration device, which can not only accurately sense the pressure distribution, but also conveniently extract the assembly pressure value.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a mobile phone screen assembly pressure calibration device, comprising: an upper template, a base and a pressure plate located on the surface of the base, and a first pressure column and a second pressure column are respectively arranged on both sides of the surface of the upper template opposite to the pressure plate; A flexible pressure sensor is located between the upper template and the pressure plate; the flexible pressure sensor further includes: an upper substrate layer and a lower substrate layer, the lower substrate layer is provided with a plurality of row electrode strips spaced apart on the surface of the upper substrate layer, the plurality of row electrode strips are arranged in parallel, the upper substrate layer is provided with a plurality of column electrode strips spaced apart on the surface of the lower substrate layer, the plurality of column electrode strips are arranged in parallel, and the row electrode strips are arranged at a vertical angle to the column electrode strips; a pressure-sensitive sensor film is located between the plurality of column electrode strips of the upper substrate layer and the plurality of row electrode strips of the lower substrate layer, and the upper substrate layer and the lower substrate layer are connected together at their respective edge areas around the pressure-sensitive sensor film.

[0005] The technical solution further improved in the above technical solution is as follows: 1. In the above scheme, both ends of the upper template have an upper arc-shaped portion, and both ends of the pressure plate are provided with a lower arc-shaped portion matching the upper arc-shaped portion.

[0006] 2. In the above solution, the thickness of the row electrode strips and the column electrode strips is 0.1-10 μm.

[0007] 3. In the above scheme, the row electrode strips are copper electrode strips or aluminum electrode strips, and the column electrode strips are copper electrode strips or aluminum electrode strips.

[0008] 4. In the above solution, the upper substrate layer and the lower substrate layer are connected at their respective edge regions via an adhesive portion.

[0009] 5. In the above solution, the thickness of the upper substrate layer and the lower substrate layer are both 30-50 μm.

[0010] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The mobile phone screen assembly pressure calibration device of the present invention comprises an upper template, a base and a pressure plate located on the surface of the base, a flexible pressure sensor is located between the upper template and the pressure plate, and the flexible pressure sensor further comprises: an upper substrate layer, a lower substrate layer and a pressure-sensitive sensing film located between the upper substrate layer and the lower substrate layer; it can not only accurately sense the pressure distribution, but also facilitate the extraction of the assembly pressure value.

[0011] 2. The mobile phone screen assembly pressure calibration device of the present invention has a pressure-sensitive sensor film located between a plurality of column electrode strips of an upper substrate layer and a plurality of row electrode strips of a lower substrate layer, and the upper substrate layer and the lower substrate layer are respectively connected together at edge areas located around the pressure-sensitive sensor film. Since the pressure-sensitive sensor film is not connected to the upper substrate layer and the lower substrate layer by bonding or the like, there will be a gap between the pressure-sensitive sensor film and the upper substrate layer and the lower substrate layer when no pressure is applied, so that the flexible pressure sensor has a fast response speed to pressure, improves the defect of continued deformation under constant pressure, is also conducive to rapid recovery of the flexible pressure sensor when the pressure disappears, and improves the detection accuracy and speed of the flexible pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 This is a schematic diagram of the structure of the mobile phone screen assembly pressure calibration device of the present invention; Attached Figure 2 is a schematic diagram of the cross-sectional structure of the flexible pressure sensor of the present invention; Attached Figure 3 It is a schematic diagram of the local structure of the flexible pressure sensor of the present invention; Attached Figure 4 This is a schematic diagram of the structure of the lower substrate layer in the flexible pressure sensor of the present invention; Attached Figure 5 It is a schematic diagram of the structure of the upper substrate layer in the flexible pressure sensor of the present invention.

[0013] In the above drawings: 1. upper substrate layer; 2. lower substrate layer; 3. column electrode strips; 4. row electrode strips; 5. pressure-sensitive sensor film; 6. adhesive portion; 7. upper template; 8. base; 9. pressure plate; 10. flexible pressure sensor; 111. upper arc-shaped portion; 112. lower arc-shaped portion; 121. first pressure column; 122. second pressure column. DETAILED DESCRIPTION

[0014] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0015] The present invention will be further described below in conjunction with embodiments: Embodiment 1: A mobile phone screen assembly pressure calibration device, comprising: an upper template 7, a base 8 and a pressure plate 9 located on the surface of the base 8, wherein the upper template 7 and the pressure plate 9 are provided with a first pressure column 121 and a second pressure column 122 on both sides of the surface opposite to the pressure plate 9; A flexible pressure sensor is located between the upper template 7 and the pressure plate 9; the flexible pressure sensor 10 further includes: an upper substrate layer 1 and a lower substrate layer 2, the surface of the lower substrate layer 2 facing the upper substrate layer 1 is provided with a plurality of spaced row electrode strips 4, and the plurality of row electrode strips 4 are arranged in parallel, and the surface of the upper substrate layer 1 facing the lower substrate layer 2 is provided with a plurality of spaced column electrode strips 3, and the plurality of column electrode strips 3 are arranged in parallel, and the row electrode strips 4 are arranged at a vertical angle to the column electrode strips 3; a pressure-sensitive sensor film 5 is located between the plurality of column electrode strips 3 of the upper substrate layer 1 and the plurality of row electrode strips 4 of the lower substrate layer 2, and the upper substrate layer 1 and the lower substrate layer 2 are respectively connected together at the edge areas around the pressure-sensitive sensor film 5.

[0016] Both ends of the upper mold plate 7 are provided with an upper arc-shaped portion 111 , and both ends of the pressure plate 9 are provided with a lower arc-shaped portion 112 matching the upper arc-shaped portion 111 .

[0017] The thickness of the row electrode strips 4 and the column electrode strips 3 is 3 μm.

[0018] The row electrode strips 4 are copper electrode strips or aluminum electrode strips, and the column electrode strips 3 are copper electrode strips or aluminum electrode strips.

[0019] The upper substrate layer 1 and the lower substrate layer 2 are connected at their respective edge regions via an adhesive portion 6 .

[0020] The thickness of the upper substrate layer 1 and the lower substrate layer 2 are both 45 μm, and the upper substrate layer 1 and the lower substrate layer 2 are both PET film layers.

[0021] Embodiment 2: A pressure calibration device for assembling a mobile phone screen, comprising: an upper template 7, a base 8 and a pressure plate 9 located on the surface of the base 8, wherein a first pressure column 121 and a second pressure column 122 are respectively disposed on both sides of the surface of the upper template 7 opposite to the pressure plate 9; A flexible pressure sensor is located between the upper template 7 and the pressure plate 9; the flexible pressure sensor 10 further includes: an upper substrate layer 1 and a lower substrate layer 2, the surface of the lower substrate layer 2 facing the upper substrate layer 1 is provided with a plurality of spaced row electrode strips 4, and the plurality of row electrode strips 4 are arranged in parallel, and the surface of the upper substrate layer 1 facing the lower substrate layer 2 is provided with a plurality of spaced column electrode strips 3, and the plurality of column electrode strips 3 are arranged in parallel, and the row electrode strips 4 are arranged at a vertical angle to the column electrode strips 3; a pressure-sensitive sensor film 5 is located between the plurality of column electrode strips 3 of the upper substrate layer 1 and the plurality of row electrode strips 4 of the lower substrate layer 2, and the upper substrate layer 1 and the lower substrate layer 2 are respectively connected together at the edge areas around the pressure-sensitive sensor film 5.

[0022] Both ends of the upper mold plate 7 are provided with an upper arc-shaped portion 111 , and both ends of the pressure plate 9 are provided with a lower arc-shaped portion 112 matching the upper arc-shaped portion 111 .

[0023] The thickness of the row electrode strips 4 and the column electrode strips 3 is 5 μm.

[0024] The row electrode strips 4 are copper electrode strips or aluminum electrode strips, and the column electrode strips 3 are copper electrode strips or aluminum electrode strips.

[0025] The upper substrate layer 1 and the lower substrate layer 2 are connected at their respective edge regions via an adhesive portion 6 .

[0026] The thickness of the upper substrate layer 1 and the lower substrate layer 2 are both 32 μm, and the upper substrate layer 1 and the lower substrate layer 2 are both PET film layers.

[0027] When the above-mentioned mobile phone screen assembly pressure calibration device is used, the upper template, the base and the pressure plate located on the surface of the base, a flexible pressure sensor is located between the upper template and the pressure plate, and the flexible pressure sensor further includes: an upper substrate layer, a lower substrate layer and a pressure-sensitive sensing film located between the upper substrate layer and the lower substrate layer; it can accurately sense the pressure distribution and conveniently extract the assembly pressure value; In addition, the pressure-sensitive sensor film is located between a plurality of column electrode strips of the upper substrate layer and a plurality of row electrode strips of the lower substrate layer. The upper substrate layer and the lower substrate layer are respectively connected together at edge areas around the pressure-sensitive sensor film. Since the pressure-sensitive sensor film is not connected to the upper substrate layer and the lower substrate layer by bonding or the like, there will be a gap between the pressure-sensitive sensor film and the upper substrate layer and the lower substrate layer when no pressure is applied, thereby improving the response speed of the flexible pressure sensor to pressure, improving the defect of continued deformation under constant pressure, and facilitating the rapid recovery of the flexible pressure sensor when the pressure disappears.

[0028] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile phone screen assembly pressure calibration device, characterized in that: include: An upper template (7), a base (8) and a pressure plate (9) located on the surface of the base (8), wherein a first pressure column (121) and a second pressure column (122) are respectively provided on both sides of a surface of the upper template (7) opposite to the pressure plate (9); A flexible pressure sensor is located between an upper template (7) and a pressure plate (9); the flexible pressure sensor (10) further comprises: an upper substrate layer (1) and a lower substrate layer (2); a surface of the lower substrate layer (2) facing the upper substrate layer (1) is provided with a plurality of row electrode strips (4) distributed at intervals, and the plurality of row electrode strips (4) are arranged in parallel; a surface of the upper substrate layer (1) facing the lower substrate layer (2) is provided with a plurality of column electrode strips (3) distributed at intervals, and the plurality of column electrode strips (3) are arranged in parallel, and the row electrode strips (4) are arranged at a vertical angle to the column electrode strips (3); a pressure-sensitive sensing film (5) is located between the plurality of column electrode strips (3) of the upper substrate layer (1) and the plurality of row electrode strips (4) of the lower substrate layer (2); the upper substrate layer (1) and the lower substrate layer (2) are connected together at their respective edge areas around the pressure-sensitive sensing film (5).

2. The mobile phone screen assembly pressure calibration device according to claim 1, characterized in that: Both ends of the upper mold plate (7) are provided with an upper arc-shaped portion (111), and both ends of the pressure plate (9) are provided with a lower arc-shaped portion (112) matching the upper arc-shaped portion (111).

3. The mobile phone screen assembly pressure calibration device according to claim 1, characterized in that: The thickness of the row electrode strips (4) and the column electrode strips (3) is 0.1-10 μm.

4. The mobile phone screen assembly pressure calibration device according to claim 1, characterized in that: The row electrode strips (4) are copper electrode strips or aluminum electrode strips, and the column electrode strips (3) are copper electrode strips or aluminum electrode strips.

5. The mobile phone screen assembly pressure calibration device according to claim 1, characterized in that: The upper substrate layer (1) and the lower substrate layer (2) are respectively connected at their edge regions via an adhesive portion (6).

6. The mobile phone screen assembly pressure calibration device according to claim 1, characterized in that: The thickness of the upper substrate layer (1) and the lower substrate layer (2) are both 30-50 μm.

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