Narrow-frame light sensation touch screen structure

Abstract

The utility model discloses a narrow-frame light-sensitive touch screen structure, which is characterized in that a containing groove is formed in sensor glass, and a light-sensitive element is embedded in the containing groove, so that the light-sensitive element does not need to be arranged outside the sensor glass, a black frame of a cover plate is reduced, the attractiveness of a touch screen is improved, and the user experience is improved; according to the touch screen, the containing groove is formed in one side of the binding position, so that the containing groove and the binding position are jointly arranged on one face of the sensor glass, and the situation that the frame of the touch screen is widened due to the fact that the containing groove and the binding position are arranged on the two faces of the sensor is avoided; the light sensing surface of the light sensing element is arranged opposite to the semi-through hole, the semi-through hole of the cover plate is mainly used for transmitting light, so that the light sensing element senses the change of the external brightness of the mobile phone, the FPC is provided with the hollow area which is mainly used for preventing the light sensing element from being shielded, and the position of the semi-through hole and the position of the hollow area correspond to the position of the accommodating groove. The light sensing element can sense the light intensity of the surrounding environment, and the screen brightness can be automatically adjusted according to the light intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screens, in particular to a narrow-frame light-sensing touch screen structure. Background Art

[0002] With the continuous development of technology, narrow-frame touch screens have become a major trend in modern display technologies. When the screen size of a device remains unchanged, the touch screen has a smaller frame, thereby increasing the screen-to-body ratio and enabling users to obtain a more immersive visual experience when viewing. This design is widely used in electronic devices such as mobile phones, tablet computers, and monitors. The light-sensing technology can sense the light intensity of the surrounding environment and automatically adjust the screen brightness according to the light intensity. This not only helps to save power but also maintains the best display effect of the screen in different light environments, reduces the irritation to the user's eyes, and improves the use comfort. Currently, the black frame of the touch screen cover plate with light-sensing technology is relatively large, reducing the aesthetics of the touch screen and greatly affecting the user experience. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a narrow-frame light-sensing touch screen structure.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A narrow-frame light-sensing touch screen structure includes: a cover plate, an FPC, and a sensor glass. A semi-transparent hole is provided on the cover plate; one end of the FPC is provided with a first connection end, and a hollow area is provided on the first connection end; the sensor glass is attached to the cover plate, one end of the sensor glass is provided with a binding position, the binding position is arranged between the sensor glass and the cover plate, the first connection end is connected to the binding position, a receiving groove is provided on one side of the binding position, the position of the semi-transparent hole and the position of the hollow area correspond to the position of the receiving groove, a light-sensing element is provided on the receiving groove, and the light-sensing surface of the light-sensing element is arranged opposite to the semi-transparent hole.

[0006] In one embodiment, black ink is screen-printed on the side of the semi-transparent hole away from the hollow area.

[0007] In one embodiment, an adhesive block is provided between the FPC and the sensor glass, and the adhesive block surrounds the edge of the receiving groove on three sides.

[0008] In one embodiment, a reinforcing sheet is provided between the cover plate and the FPC, and a through hole is provided on the reinforcing sheet, and the position of the through hole corresponds to the position of the semi-transparent hole.

[0009] In one embodiment, the reinforcing sheet is a PI reinforcing sheet.

[0010] In one embodiment, a protective adhesive is provided at the bottom of the sensor glass. The protective adhesive is disposed on one side of the binding position and is connected to the sensor glass and the FPC respectively.

[0011] In one embodiment, an optical adhesive OCA is provided between the cover plate and the sensor glass.

[0012] In one embodiment, a second connection end is provided at the other end of the FPC, and a component area is provided on the second connection end.

[0013] In one embodiment, a reinforcing steel plate is provided on the side of the second connection end away from the component area.

[0014] In one embodiment, an adhesive layer is provided on the side of the reinforcing steel plate away from the second connection end.

[0015] Compared with the prior art, the present utility model has at least the following advantages:

[0016] In the narrow-bezel light-sensing touch screen structure of the present utility model, by providing a receiving groove on the sensor glass and embedding the light-sensing element into the receiving groove, the light-sensing element does not need to be disposed outside the sensor glass, thereby reducing the black frame of the cover plate, improving the aesthetics of the touch screen, and enhancing the user experience; by disposing the receiving groove on one side of the binding position, the receiving groove and the binding position are jointly disposed on one surface of the sensor glass, avoiding the receiving groove and the binding position being disposed on two surfaces of the sensor, which results in a wider border of the touch screen; the light-sensing surface of the light-sensing element is disposed opposite to the semi-permeable hole. The semi-permeable hole of the cover plate is mainly used for light transmission, so that the light-sensing element senses the change in the brightness outside the mobile phone. The hollow area provided on the FPC is mainly to avoid blocking the light-sensing element. The position of the semi-permeable hole and the position of the hollow area correspond to the position of the receiving groove. In this way, the light-sensing element can sense the light intensity of the surrounding environment and automatically adjust the screen brightness according to the light intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below.

[0018] Figure 1 It is a front view of the narrow-bezel light-sensing touch screen structure in an embodiment of the present utility model;

[0019] Figure 2 It is a back view of the narrow-bezel light-sensing touch screen structure in an embodiment of the present utility model;

[0020] Figure 3 is Figure 2 a partial enlarged schematic view of part A in

[0021] Figure 4 is a side view of the narrow - border light - sensitive touch - screen structure in an embodiment of the present utility model;

[0022] Figure 5 is Figure 4 a partial enlarged schematic view of part B in

[0023] Description of the drawings: 100, cover plate; 200, FPC; 300, sensor glass; 110, semi - transparent hole; 210, first connection end; 211, hollowed - out area; 310, binding and positioning; 320, accommodating groove; 321, light - sensitive element; 330, adhesive block; 120, reinforcing sheet; 340, protective glue; 400, optical glue OCA; 220, second connection end; 221, element area; 222, reinforcing steel plate; 223, adhesive layer; Detailed implementation manners

[0024] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings.

[0025] Please refer to Figures 1 to 5 , a narrow - border light - sensitive touch - screen structure, including: a cover plate 100, an FPC 200 and a sensor glass 300. A semi - transparent hole 110 is provided on the cover plate 100; one end of the FPC 200 is provided with a first connection end 210, and a hollowed - out area 211 is provided on the first connection end 210; the sensor glass 300 is attached to the cover plate 100, one end of the sensor glass 300 is provided with a binding and positioning 310, the binding and positioning 310 is arranged between the sensor glass 300 and the cover plate 100, the first connection end 210 is connected to the binding and positioning 310, an accommodating groove 320 is provided on one side of the binding and positioning 310, the position of the semi - transparent hole 110 and the position of the hollowed - out area 211 correspond to the position of the accommodating groove 320, a light - sensitive element 321 is provided on the accommodating groove 320, and the light - sensitive surface of the light - sensitive element 321 is arranged opposite to the semi - transparent hole 110.

[0026] It should be noted that by providing a receiving groove 320 on the sensor glass 300 and embedding the light sensing element 321 into the receiving groove 320, the light sensing element 321 does not need to be disposed outside the sensor glass 300, thereby reducing the black frame of the cover plate 100, improving the aesthetics of the touch screen, and enhancing the user experience. By disposing the receiving groove 320 on one side of the binding position 310, the receiving groove 320 and the binding position 310 are jointly disposed on one surface of the sensor glass 300, avoiding the receiving groove 320 and the binding position 310 being disposed on two surfaces of the sensor, which would cause the border of the touch screen to become wider. The light sensing surface of the light sensing element 321 is disposed opposite to the semi-permeable hole 110. The semi-permeable hole 110 of the cover plate 100 is mainly used for light transmission, enabling the light sensing element 321 to sense the change in the brightness outside the mobile phone. The hollow area 211 provided on the FPC 200 is mainly to avoid blocking the light sensing element 321. The position of the semi-permeable hole 110 and the position of the hollow area 211 correspond to the position of the receiving groove 320. In this way, the light sensing element 321 can sense the light intensity of the surrounding environment and automatically adjust the screen brightness according to the light intensity.

[0027] Please refer to Figure 1 and Figure 3 , in one embodiment, black ink is screen-printed on the side of the semi-permeable hole 110 away from the hollow area 211. Such a setting mainly hides the semi-permeable hole 110 on the cover plate 100, making the touch screen more beautiful. At the same time, the transmittance of the semi-permeable hole 110 can be set at 10%, avoiding the light sensing element 321 being overly sensitive and affecting the user experience.

[0028] Please refer to Figure 3 and Figure 5 , in one embodiment, an adhesive block 330 is provided between the FPC 200 and the sensor glass 300. The adhesive block 330 is disposed around three sides of the edge of the receiving groove 320, enabling the part of the FPC 200 on the edge of the receiving groove 320 to be attached to the sensor glass 300, avoiding warping caused by a gap between this part of the FPC 200 and the sensor glass 300 and affecting the performance of the touch screen. Since the receiving groove 320 extends to the bottom of the sensor glass 300 and there is no FPC 200 at the bottom part of the receiving groove 320 that needs to be attached to the sensor glass 300, the adhesive block 330 is disposed around three sides. Optionally, according to user requirements, the receiving groove 320 can be set not to extend to the bottom of the sensor glass 300 and be directly disposed inside the sensor glass 300. At this time, all parts of the FPC 200 around the edge of the receiving groove 320 need to be attached to the sensor glass 300, making the adhesive block 330 disposed around four sides of the edge of the receiving groove 320.

[0029] Please refer to Figure 5, In one embodiment, a reinforcing sheet 120 is disposed between the cover plate 100 and the FPC 200. The reinforcing sheet 120 is provided with a through hole, and the position of the through hole corresponds to the position of the semi-transparent hole 110. With such a setting, the stability of the FPC 200 can be improved, the gap between the cover plate 100 and the FPC 200 can be avoided, and the warping of the FPC 200 board can be prevented, thereby affecting the performance of the touch screen. A through hole corresponding to the position of the semi-transparent hole 110 is provided on the reinforcing sheet 120, which can prevent the photosensing element 321 from being blocked.

[0030] Preferably, the reinforcing sheet 120 is a PI reinforcing sheet. The PI reinforcing sheet has good insulation, mechanical strength and chemical stability, and can increase the strength of the FPC 200 board.

[0031] Please refer to Figure 2 and Figure 5 , In one embodiment, a protective glue 340 is disposed at the bottom of the sensor glass 300. The protective glue 340 is disposed on one side of the binding position 310. The protective glue 340 is connected to the sensor glass 300 and the FPC 200 respectively. When the FPC 200 needs to be connected to other components by bending, the part of the FPC 200 at the bottom position of the sensor glass 300 is likely to be damaged by friction. The protective glue 340 is disposed at this position to improve the service life of the FPC 200.

[0032] Please refer to Figure 2 and Figure 5 , In one embodiment, an optical adhesive OCA 400 is disposed between the cover plate 100 and the sensor glass 300. The optical adhesive OCA 400 has good light transmission performance. Connecting the cover plate 100 and the sensor glass 300 with the optical adhesive OCA 400 can avoid affecting the clarity of the screen.

[0033] Please refer to Figure 1 and Figure 2 , In one embodiment, a second connection end 220 is disposed at the other end of the FPC 200. An element area 221 is disposed on the second connection end 220. A reinforcing steel plate 222 is disposed on the side of the second connection end 220 away from the element area 221. With such a setting, the second connection end 220 can be made flatter, facilitating the welding of the components in the element area 221 to the second connection end 220. The components in the element area 221 include capacitors, resistors, connectors, etc., which can improve the performance of the FPC 200.

[0034] Please refer to Figure 2 , In one embodiment, an adhesive layer 223 is disposed on the side of the reinforcing steel plate 222 away from the second connection end 220. With such a setting, after the FPC 200 is bent to the back of the touch screen backlight, it can be adhered to the backlight iron frame or other positions.

[0035] The embodiments described above merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A narrow-frame optical touch screen structure, characterized in that: include: A cover plate, wherein a semi-transparent hole is formed on the cover plate; An FPC, wherein one end of the FPC is provided with a first connecting end, and a hollow area is provided on the first connecting end; and sensor glass, the sensor glass is fitted with the cover plate, a binding position is provided at one end of the sensor glass, the binding position is provided between the sensor glass and the cover plate, the first connecting end is connected to the binding position, a receiving groove is provided on one side of the binding position, the position of the semi-transparent hole and the position of the hollow area correspond to the position of the receiving groove, a photosensitive element is provided on the receiving groove, and the photosensitive surface of the photosensitive element is arranged opposite to the semi-transparent hole.

2. The narrow-frame optical touch screen structure according to claim 1, characterized in that: The semi-permeable hole is screen-printed with black ink on a side away from the hollow area.

3. The narrow-frame optical touch screen structure according to claim 1, characterized in that: An adhesive block is arranged between the FPC and the sensor glass, and the adhesive block is arranged around the edge of the accommodating groove on three sides.

4. The narrow-frame optical touch screen structure according to claim 1, characterized in that: A reinforcing sheet is arranged between the cover plate and the FPC, and the reinforcing sheet is provided with a through hole, and the position of the through hole corresponds to the position of the semi-transparent hole.

5. The narrow-frame optical touch screen structure according to claim 4, characterized in that: The reinforcing sheet is a PI reinforcing sheet.

6. The narrow-frame optical touch screen structure according to claim 1, characterized in that: A protective glue is arranged at the bottom of the sensor glass, and the protective glue is arranged on one side of the binding position. The protective glue is respectively connected to the sensor glass and the FPC.

7. The narrow-frame optical touch screen structure according to claim 1, characterized in that: Optical adhesive OCA is arranged between the cover plate and the sensor glass.

8. The narrow-frame optical touch screen structure according to claim 1, characterized in that: The other end of the FPC is provided with a second connection end, and a component area is provided on the second connection end.

9. The narrow-frame optical touch screen structure according to claim 8, characterized in that: A reinforcing steel plate is provided on a side of the second connecting end away from the component area.

10. The narrow-frame optical touch screen structure according to claim 9, characterized in that: The reinforcing steel plate is provided with an adhesive layer on a side away from the second connecting end.

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