Light sensation touch screen structure

Abstract

The utility model discloses a light sensation touch screen structure which is characterized in that a light sensation receiving area is arranged at the top of an OGS touch screen, ambient light can be better detected, the light sensation receiving area is not prone to being blocked in use, a light sensation IC is arranged on the lower surface of a glass substrate of the light sensation receiving area, and the light sensation IC is electrically connected with an FPC through edge metal wires. The backlight brightness is adjusted according to the intensity of external light, and finally the effect of adjusting the screen brightness is achieved. And the semi-transparent black toughened glass is adopted, so that the transmittance of the visual area is reduced, and when the screen is not lightened, the integrated black effect of the edge and the visual area is better, so that the product competitiveness of the OGS touch screen is improved, and the ever-increasing quality requirements of enterprises are met.

Description

Technical Field

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

[0002] The LCD module includes a visible area and a frame area. The traditional frame area is printed with a black ink layer. The background color of the visible area is the color of the LCD OGS touch screen, while the background color of the frame area is the color of the black ink layer. When the LCD module is in the off state, the color difference between the two causes the visual effect of the visible area and the frame area to be different, and there is a clear boundary between the two. Utility Model Content

[0003] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a light-sensitive touch screen structure, which can better detect ambient light by setting a light-sensitive receiving area on the top of the OGS touch screen, and is not easily blocked when in use; a light-sensitive IC is set on the lower surface of the glass substrate in the light-sensitive receiving area, and the light-sensitive IC is electrically connected to the FPC through an edge metal wiring; the main black ink layer, the reverse cover black shading ink and the light-sensitive FPC are all shielded from the light-sensitive IC, and a semi-transparent black ink layer is set on the shielding portion, the semi-transparent black ink layer can achieve an integrated black effect at ordinary times, and can allow light to pass through the front of the glass substrate through the semi-transparent black ink layer, and then pass through the shielding portion of the light-sensitive FPC to enter the light-sensitive IC, so that the OGS touch screen has a light-sensitive function, and because it can make the light-sensitive IC can be directly set on the lower surface of the light-sensitive FPC, the backlight brightness is adjusted by the strength of the external light, and finally the screen brightness is adjusted. The use of semi-transparent black tempered glass reduces the transmittance of the viewing area. When the screen is not lit, the integrated black effect of the edge and the viewing area is better, thereby improving the product competitiveness of the OGS touch screen and meeting the company's growing quality requirements.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solution: A light-sensitive touch screen structure includes a glass substrate having a display area and a non-display area;

[0005] An ITO touch layer is provided on the lower surface of the display area of ​​the glass substrate;

[0006] An FPC is bound to the lower surface of the non-display area of ​​the glass substrate, and the FPC is provided with a first binding position;

[0007] A light-sensitive FPC is arranged on the lower surface of the non-display area of ​​the glass substrate opposite to the FPC and is provided with a second binding position;

[0008] A photosensitive IC is disposed on the lower surface of the photosensitive FPC.

[0009] A main black ink layer is provided on the lower surface of the glass substrate located in the non-display area, and a space-avoiding portion is provided on the main black ink layer just above the photosensitive IC, and the photosensitive FPC avoids the photosensitive IC;

[0010] The lower surface of the main black ink layer is screen-printed with reverse-cover black light-shielding ink.

[0011] The second binding position of the light-sensitive FPC is electrically connected to the first binding position of the FPC through an edge metal wiring.

[0012] As a preferred implementation of the optical touch screen structure provided by the utility model, a semi-transparent black ink layer is provided on the lower surface of the glass substrate at the air-avoiding portion.

[0013] As a preferred implementation of the optical touch screen structure provided by the utility model, a first PI reinforcement board is provided on the upper surface of the FPC at a position corresponding to the optical IC, and the first PI reinforcement board avoids the optical IC.

[0014] As a preferred implementation of the light-sensitive touch screen structure provided by the utility model, black double-sided adhesive is attached to the lower surface of the first PI reinforcement plate and the glass substrate, and the black double-sided adhesive avoids the light-sensitive IC.

[0015] As a preferred implementation of the light-sensitive touch screen structure provided by the utility model, the glass substrate is semi-transparent black tempered glass.

[0016] As a preferred implementation of the light-sensitive touch screen structure provided by the utility model, a protective film is provided on the lower surface of the light-sensitive IC.

[0017] As a preferred embodiment of the optical touch screen structure provided by the utility model, a touch IC is arranged on the upper surface of the FPC, and a steel sheet reinforcement plate is arranged on the lower surface of the FPC located at the touch IC, and the steel sheet reinforcement plate has a thickness of 0.2 mm.

[0018] As a preferred implementation of the optical touch screen structure provided by the utility model, a double-sided adhesive tape is provided on the lower surface of the steel sheet reinforcement plate, and the thickness of the double-sided adhesive tape is 0.05 mm.

[0019] As a preferred implementation of the optical touch screen structure provided by the utility model, a plug-in end is provided at one end of the FPC, and a second PI reinforcing plate is provided on the lower surface of the FPC located at the plug-in end.

[0020] As a preferred implementation of the optical touch screen structure provided by the utility model, a plurality of grooves are formed on the upper surface of the glass substrate by etching, and a plastic layer is covered on the upper side of the glass substrate, and the plastic layer is embedded in the plurality of grooves.

[0021] The utility model has the following beneficial effects: a light-sensitive touch screen structure, comprising: a glass substrate, provided with a display area and a non-display area; an ITO touch layer, provided on the lower surface of the glass substrate display area; an FPC, bound to the lower surface of the glass substrate non-display area, the FPC having a first binding position; a light-sensitive FPC, provided on the lower surface of the glass substrate non-display area opposite to the FPC, and having a second binding position; a light-sensitive IC is provided on the lower surface of the light-sensitive FPC, a main black ink layer is provided on the lower surface of the glass substrate in the non-display area, the main black ink layer is provided with a space-avoiding portion directly above the light-sensitive IC, the light-sensitive FPC avoids the light-sensitive IC; a reverse-cover black light-shielding ink is silk-screened on the lower surface of the main black ink layer. The second binding position of the light-sensitive FPC is electrically connected to the first binding position of the FPC through an edge metal trace. The present application can better detect ambient light by setting a light-sensing receiving area on the top of the OGS touch screen, which is not easily blocked when in use. A light-sensing IC is set on the lower surface of the glass substrate in the light-sensing receiving area, and the light-sensing IC is electrically connected to the FPC through the edge metal wiring. The main black ink layer, the reverse cover black light-shielding ink and the light-sensing FPC are all shielded from the light-sensing IC, and a semi-transparent black ink layer is set on the shielding part. The semi-transparent black ink layer can achieve the effect of one-piece black at ordinary times and can allow light to pass through the front of the glass substrate through the semi-transparent black ink layer, and then pass through the shielding part of the light-sensing FPC to enter the light-sensing IC, so that the OGS touch screen has a photosensitive function, and because it can make the light-sensing IC can be directly set on the lower surface of the light-sensing FPC, the backlight brightness is adjusted by the strength of the external light, and finally the screen brightness is adjusted. And the use of semi-transparent black tempered glass reduces the transmittance of the viewing area. When the screen is not lit, the one-piece black effect of the edge and the viewing area is better, thereby improving the product competitiveness of the OGS touch screen, thereby meeting the growing quality requirements of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural schematic diagram of the light-sensitive touch screen structure provided by the utility model;

[0024] Figure 2 A schematic diagram of stacking the optical touch screen structure provided by the utility model;

[0025] Figure 3 A side view of the light-sensitive touch screen structure provided by the utility model;

[0026] Figure 4 This is a back view of the light-sensitive touch screen structure provided by the utility model;

[0027] Figure 5 is a schematic diagram of an improved structure of a glass substrate;

[0028] Figure 6 for Figure 5 Schematic diagram of the decomposition structure.

[0029] 1. Glass substrate; 11. Non-display area; 12. Display area; 13. Main black ink layer; 14. Reverse cover black shading ink; 15. Groove; 2. FPC; 21. Touch IC; 22. Steel sheet reinforcement plate; 23. Double-sided tape; 24. Second PI reinforcement plate; 3. ITO touch layer; 4. Air-avoiding part; 41. Semi-transparent black ink layer; 51. Photosensitive IC; 52. First PI reinforcement plate; 53. Black double-sided tape; 6. Protective film; 7. Plastic layer; 8. Metal wiring. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, 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 accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Embodiment 1

[0035] like Figures 1 to 4 As shown, a light-sensitive touch screen structure includes a glass substrate 1 having a display area 12 and a non-display area 11;

[0036] An ITO touch layer 3 is provided on the lower surface of the display area 12 of the glass substrate 1;

[0037] FPC2, bound to the lower surface of the non-display area 11 of the glass substrate 1, the FPC is provided with a first binding position;

[0038] A photosensitive FPC 5 is arranged on the lower surface of the non-display area 11 of the glass substrate 1 opposite to the FPC and is provided with a second binding position;

[0039] The lower surface of the photosensitive FPC5 is provided with a photosensitive IC51.

[0040] A main black ink layer 13 is provided on the lower surface of the glass substrate 1 located in the non-display area 11. The main black ink layer 13 is provided with a space-avoiding portion 4 just above the photosensitive IC 51. The photosensitive FPC 5 avoids the photosensitive IC 51.

[0041] The lower surface of the main black ink layer 13 is screen-printed with reverse-cover black light-shielding ink 14 .

[0042] The second binding position of the light-sensing FPC5 is electrically connected to the first binding position of the FPC2 through an edge metal trace 8 .

[0043] A semi-transparent black ink layer 41 is disposed on the lower surface of the glass substrate 1 at the air-avoiding portion 4 .

[0044] The utility model can better detect ambient light by setting a light-sensing receiving area on the top of the OGS touch screen, which is not easily blocked when in use. A light-sensing IC51 is set on the lower surface of the glass substrate 1 in the light-sensing receiving area, and the light-sensing IC51 is electrically connected to the FPC2 through the edge metal wiring 8. The main black ink layer 13, the reverse cover black light-shielding ink 14 and the light-sensing FPC5 are all shielded from the light-sensing IC51, and a semi-transparent black ink layer 41 is set on the shielding portion 4. The semi-transparent black ink layer 41 can achieve an integrated black effect at ordinary times and allow light to pass through the front side of the glass substrate 1 through the semi-transparent black ink layer 41, and then pass through the shielding portion 4 of the light-sensing FPC5 to enter the light-sensing IC51, so that the OGS touch screen has a light-sensing function, and because it can make the light-sensing IC51 can be directly set on the lower surface of the light-sensing FPC5, the backlight brightness is adjusted by the strength of the external light, and finally the screen brightness is adjusted. The use of semi-transparent black tempered glass reduces the transmittance of the viewing area. When the screen is not lit, the integrated black effect of the edge and the viewing area is better, thereby improving the product competitiveness of the OGS touch screen and meeting the company's growing quality requirements.

[0045] Furthermore, a first PI reinforcing plate 52 is disposed on the upper surface of the photosensitive FPC 5 at a position corresponding to the photosensitive IC 51 , and the first PI reinforcing plate 52 avoids the photosensitive IC 51 .

[0046] Furthermore, a black double-sided adhesive 53 is attached to the lower surface of the first PI reinforcing plate 52 and the glass substrate 1 , and the black double-sided adhesive 53 avoids the light sensing IC 51 .

[0047] Embodiment 2

[0048] As a further optimization solution of the first embodiment, in this embodiment, the glass substrate 1 is semi-transparent black tempered glass.

[0049] A protective film 6 is provided on the lower surface of the photosensitive IC 51 . The protective film 6 is a single-sided adhesive foam to protect the photosensitive IC 51 from being damaged.

[0050] Furthermore, a touch IC 21 is disposed on the upper surface of the FPC 2 , and a steel sheet reinforcement plate 22 is disposed on the lower surface of the FPC 2 located at the touch IC 21 . The steel sheet reinforcement plate 22 has a thickness of 0.2 mm.

[0051] In another preferred implementation manner of this embodiment, a double-sided tape 23 is provided on the lower surface of the steel sheet reinforcement plate 22, and the thickness of the double-sided tape 23 is 0.05 mm.

[0052] Furthermore, a plug-in terminal is provided at one end of the FPC2, and a second PI reinforcing plate 24 is provided on the lower surface of the FPC2 located at the plug-in terminal to enhance the strength of the plug-in terminal and facilitate plugging and unplugging of the plug-in terminal.

[0053] Embodiment 3

[0054] like Figure 5 and Figure 6 As shown, as a further optimization solution of the first embodiment, in this embodiment, a plurality of grooves 15 are formed on the upper surface of the glass substrate 1 by etching, and a plastic layer 7 is covered on the upper side of the glass substrate 1 , and the plastic layer 7 is embedded in the plurality of grooves 15 .

[0055] In this embodiment, the upper surface of the glass substrate 1 is covered with a plastic layer 7, and a plurality of grooves 15 are formed downwardly on the upper surface of the glass substrate 1 by etching, and a portion of the lower surface of the plastic layer 7 is embedded in each groove 15. Since the surface of the groove 15 formed by etching has a certain degree of roughness, the plastic layer 7 can be tightly bonded to the groove 15, thereby preventing the glass substrate 1 and the plastic layer 7 from falling off. Since the upper part of the glass substrate 1 is covered with a plastic layer 7, and a plurality of grooves 15 are formed on the upper surface of the glass substrate 1 by etching, and the plastic layer 7 can be embedded in the plurality of grooves 15, the grooves 15 formed by etching make the inner surface of the grooves 15 have a certain degree of roughness, and the surface of the grooves 15 with a certain degree of roughness can improve the bonding force between the grooves 15 and the plastic layer 7, thereby reducing the possibility of separation of the grooves 15 and the plastic layer 7. When the OGS touch screen is hit or dropped, the plastic layer 7 on the upper surface of the glass substrate 1 can directly withstand the external force, thereby preventing the external force from directly acting on the glass substrate 1. Since the plastic layer 7 can absorb most of the energy, the remaining external force is very weak when it acts on the glass substrate 1, thereby effectively reducing the risk of the glass substrate 1 being broken or damaged. Moreover, when the OGS touch screen is subjected to the external force, even if the external force is large, only the plastic layer 7 on the upper surface of the glass substrate 1 will be damaged, and the glass substrate 1 will not be directly damaged. Therefore, it can be avoided that the glass substrate 1 is damaged and the OGS touch screen cannot be used normally, thereby bringing a better user experience to the user and improving the anti-fall ability of the OGS touch screen.

[0056] Furthermore, the shape of the groove 15 can be square or circular, and the cross-sectional shape of the groove 15 can be a closing groove that is narrow on the outside and wide on the inside. In the present embodiment, the cross-sectional shape of the groove 15 is an isosceles trapezoid, and the groove 15 is in the shape of an elongated strip. The isosceles trapezoid-shaped groove 15 can make the plastic layer 7 tightly embedded in the groove 15, thereby preventing the groove 15 from being separated from the plastic layer 7, thereby preventing the glass substrate 1 from falling off from the plastic layer 7. The elongated groove 15 can increase the fitting portion between the plastic layer 7 and the groove 15, thereby improving the fitting strength between the groove 15 and the plastic layer 7.

[0057] Furthermore, the groove 15 is located in the non-display area 11 to prevent the groove 15 from affecting the normal display of the OGS touch screen.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A light-sensitive touch screen structure, characterized in that: It comprises a glass substrate (1) having a display area (12) and a non-display area (11); An ITO touch layer (3) is provided on the lower surface of the display area (12) of the glass substrate (1); An FPC (2) is bonded to the lower surface of the non-display area (11) of the glass substrate (1), the FPC being provided with a first bonding position; A light-sensitive FPC (5) is arranged on the lower surface of the non-display area (11) of the glass substrate (1) opposite to the FPC and is provided with a second binding position; A photosensitive IC (51) is disposed on the lower surface of the photosensitive FPC (5). A main black ink layer (13) is provided on the lower surface of the glass substrate (1) located in the non-display area (11); a space-avoiding portion (4) is provided on the main black ink layer (13) directly above the photosensitive IC (51); and the photosensitive FPC (5) avoids the photosensitive IC (51); The lower surface of the main black ink layer (13) is screen-printed with reverse-cover black light-shielding ink (14); The second binding position of the light-sensitive FPC (5) is electrically connected to the first binding position of the FPC (2) via an edge metal wiring (8).

2. The optical touch screen structure according to claim 1, characterized in that: A semi-transparent black ink layer (41) is provided on the lower surface of the glass substrate (1) at the air-avoiding portion (4).

3. The optical touch screen structure according to claim 1, characterized in that: A first PI reinforcing plate (52) is provided on the upper surface of the photosensitive FPC (5) at a position corresponding to the photosensitive IC (51), and the first PI reinforcing plate (52) avoids the photosensitive IC (51).

4. The optical touch screen structure according to claim 3, characterized in that: A black double-sided adhesive (53) is adhered to the lower surface of the first PI reinforcing plate (52) and the glass substrate (1), and the black double-sided adhesive (53) avoids the light sensing IC (51).

5. The optical touch screen structure according to claim 1, characterized in that: The glass substrate (1) is semi-transparent black tempered glass.

6. The optical touch screen structure according to claim 1, characterized in that: A protective film (6) is provided on the lower surface of the light sensing IC (51).

7. The optical touch screen structure according to claim 1, characterized in that: A touch IC (21) is arranged on the upper surface of the FPC (2), and a steel sheet reinforcement plate (22) is arranged on the lower surface of the FPC (2) located at the touch IC (21), wherein the thickness of the steel sheet reinforcement plate (22) is 0.2 mm.

8. The optical touch screen structure according to claim 7, characterized in that: The lower surface of the steel sheet reinforcement plate (22) is provided with a double-sided adhesive tape (23), and the thickness of the double-sided adhesive tape (23) is 0.05 mm.

9. The optical touch screen structure according to claim 8, characterized in that: One end of the FPC (2) is provided with a plug-in end, and a second PI reinforcing plate (24) is provided on the lower surface of the FPC (2) located at the plug-in end.

10. The optical touch screen structure according to claim 1, characterized in that: A plurality of grooves (15) are formed on the upper surface of the glass substrate (1) by etching, and a plastic layer (7) is covered on the upper side of the glass substrate (1), wherein the plastic layer (7) is embedded in the plurality of grooves (15).

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