Backlight touchpad structure based on filter eye protection function

Abstract

The utility model provides a kind of backlight touchpad structure based on eyeshade function of optical filter, it is related to computer technology field, including semi-transparent glass cover plate, light weakening component, diffusion component, first light guide component, reflection component, circuit board component, semi-transparent glass cover plate, light weakening component, diffusion component, first light guide component, reflection component, circuit board component are sequentially laminated and adhered fixed connection, light source is irradiated to first light guide component from side, light weakening component can be scattered with the light that first light guide component is guided and is inclined upward;The backlight touchpad structure based on eyeshade function of this application can effectively solve the problem of glare of luminous touchpad.

Description

Technical Field

[0001] This utility model relates to the field of computer technology, and in particular to a backlight touch panel structure based on the eye protection function of a filter. Background Technology

[0002] With the development of the laptop industry, gaming laptops have developed rapidly. Among them, the backlit touchpad in gaming laptops is also paying more attention to the human-centered design, because the backlit touchpad can enhance the visual effects of games and create a cooler and more immersive gaming experience.

[0003] The backlit touchpad design in traditional gaming laptops is designed to be too bright and direct, which can easily irritate the user's eyes, causing visual fatigue and making it unsuitable for prolonged use.

[0004] Therefore, it is necessary to propose a backlight touch panel structure based on the eye protection function of the filter to solve the problem of glare from the light-emitting touch panel. Utility Model Content

[0005] To address the aforementioned issues, this invention proposes a backlit touchpad structure based on an eye-protection filter to solve the problem of glare from the luminous touchpad.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes a backlight touch panel structure based on the eye protection function of a filter, including a semi-transparent glass cover, a light weakening component, a diffusion component, a first light guide component, a reflection component, and a circuit board assembly. The semi-transparent glass cover, the light weakening component, the diffusion component, the first light guide component, the reflection component, and the circuit board assembly are stacked and bonded together in sequence. When a light source shines on the first light guide component from the side, the light weakening component can scatter the light guided by the first light guide component upward at an angle.

[0008] Furthermore, each layer between the semi-transparent glass cover and the circuit board assembly is bonded and fixed by an OCA adhesive layer.

[0009] Furthermore, the light weakening component includes a second light guide component and a light filter component. The second light guide component is bonded and fixedly connected to the bottom of the semi-transparent glass cover, and the light filter component is bonded and fixedly connected to the bottom of the second light guide component.

[0010] Furthermore, the light filtering assembly includes a light filtering plate and a first OCA adhesive layer. The light filtering plate is bonded and fixedly connected to the bottom of the second light guiding assembly through the first OCA adhesive layer, and the diffusion assembly is bonded and fixedly connected to the bottom of the light filtering plate.

[0011] Furthermore, the second light guide assembly includes a second light guide plate and a second OCA adhesive layer. The second light guide plate is bonded and fixedly connected to the bottom of the semi-transparent glass cover through the second OCA adhesive layer, and the filter plate is bonded and fixedly connected to the bottom of the second light guide plate through the first OCA adhesive layer.

[0012] Furthermore, the second light guide plate is provided with a plurality of micro-recessed structures, the plurality of micro-recessed structures are distributed in an array, and the plurality of micro-recessed structures are inclined.

[0013] Furthermore, the angle between the micro-recessed structure and the vertical direction is 40 to 60 degrees.

[0014] Furthermore, the diffusion component includes a diffusion sheet and a third OCA adhesive layer, wherein the diffusion sheet is bonded and fixedly connected to the bottom of the light weakening component through the third OCA adhesive layer.

[0015] Furthermore, the first light guide assembly includes a first light guide plate and a fourth OCA adhesive layer, wherein the first light guide plate is bonded and fixedly connected to the bottom of the diffusion assembly through the fourth OCA adhesive layer.

[0016] Furthermore, the reflective component includes a reflective sheet and a fifth OCA adhesive layer, wherein the reflective sheet is bonded and fixedly connected to the bottom of the first light guide component through the fifth OCA adhesive layer.

[0017] The beneficial effects of this utility model are:

[0018] This invention employs a semi-transparent glass cover, a light weakening component, a diffusion component, a first light guide component, a reflection component, and a circuit board component, which are sequentially stacked and bonded together. The light source area is used in laptops to provide glare illumination for gaming. After the light source in the light source area shines on the first light guide component from the side, the light weakening component can divert most of the light guided by the first light guide component upwards and scatter it towards the direction of the laptop screen. In this way, the glare will not directly enter the user's eyes, avoiding eye irritation. In summary, this backlight touchpad structure based on the eye protection function of the filter can effectively solve the problem of glare from the light-emitting touchpad. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the stacked structure of the backlight touch panel based on the eye protection function of the filter according to this utility model.

[0020] The attached figures are labeled as follows:

[0021] Semi-transparent glass cover 1;

[0022] Light weakening component 2, second light guide component 21, second light guide plate 211, second OCA adhesive layer 212, filter component 22, filter plate 221, first OCA adhesive layer 222.

[0023] Diffusion component 3, diffusion sheet 31, third OCA adhesive layer 32;

[0024] First light guide assembly 4, first light guide plate 41, fourth OCA adhesive layer 42;

[0025] Reflective component 5, reflective sheet 51, fifth OCA adhesive layer 52;

[0026] Circuit board assembly 6, PCBA board 61, sixth OCA adhesive layer 62;

[0027] Light source area 7. Detailed Implementation

[0028] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0029] Please refer to Figure 1 This utility model proposes a backlight touch panel structure based on the eye protection function of a filter, including a semi-transparent glass cover 1, a light weakening component 2, a diffusion component 3, a first light guide component 4, a reflection component 5, and a circuit board assembly 6. The laptop has a light source area 7. The semi-transparent glass cover 1, the light weakening component 2, the diffusion component 3, the first light guide component 4, the reflection component 5, and the circuit board assembly 6 are stacked and bonded together in sequence. The light source area 7 is located on one side of the first light guide component 4 and faces the first light guide component 4. The light weakening component 2 can scatter the light guided by the first light guide component 4 upward at an angle.

[0030] In this embodiment, a semi-transparent glass cover plate 1, a light weakening component 2, a diffusion component 3, a first light guide component 4, a reflection component 5, and a circuit board component 6 are stacked and bonded together in sequence. The light source area 7 is used in the laptop to provide glare lighting for gaming. Glare light shines horizontally from the light source area 7 toward the first light guide component 4. The light is guided upward through the first light guide component 4 and passes through the diffusion component 3, the light weakening component 2, and the semi-transparent glass cover plate 1 in sequence. When it reaches the light weakening component 2, the light weakening component 2 can divert most of the light guided by the first light guide component 4 and scatter it upward, that is, scatter it toward the direction of the laptop screen, or diagonally to the upper left or the upper right. In this way, the glare light will not directly enter the user's eyes and avoid eye irritation.

[0031] In summary, this backlight touchpad structure based on the eye-protection function of the filter can effectively solve the problem of glare from the light-emitting touchpad.

[0032] In this embodiment, each layer between the semi-transparent glass cover 1 and the circuit board assembly 6 is bonded and fixed by an OCA adhesive layer; using OCA (optical transparent adhesive) for bonding will not block the light emitted by the light source area 7, which is beneficial to light transmission.

[0033] In this embodiment, the light weakening component 2 includes a second light guide component 21 and a light filter component 22. The second light guide component 21 is bonded and fixedly connected to the bottom of the semi-transparent glass cover plate 1, and the light filter component 22 is bonded and fixedly connected to the bottom of the second light guide component 21. The second light guide component 21 is used to guide the light from below upwards at an angle, for example, to guide the glare from below towards the screen of the laptop computer, so that the glare will not shine directly into the eyes. The light filter component 22 is used to filter visible light interference, block visible light and stray infrared light, and avoid interference of ambient light (such as sunlight and lamplight) on the touch signal.

[0034] In this embodiment, the light filtering assembly 22 includes a light filtering plate 221 and a first OCA adhesive layer 222. The light filtering plate 221 is bonded and fixedly connected to the bottom of the second light guiding assembly 21 through the first OCA adhesive layer 222, and the diffusion assembly 3 is bonded and fixedly connected to the bottom of the light filtering plate 221. The first OCA adhesive layer 222 is made of OCA (Optically Transparent Acid) material, which facilitates light transmission. The light filtering plate 221 uses an infrared filter, which allows specific infrared wavelengths (such as 850nm or 940nm) to pass through while blocking visible light and stray infrared light, thus avoiding interference from ambient light (such as sunlight and artificial light) on the touch signal.

[0035] In this embodiment, the second light guide assembly 21 includes a second light guide plate 211 and a second OCA adhesive layer 212. The second light guide plate 211 is bonded and fixedly connected to the bottom of the semi-transparent glass cover plate 1 through the second OCA adhesive layer 212, and the filter plate 221 is bonded and fixedly connected to the bottom of the second light guide plate 211 through the first OCA adhesive layer 222. The second OCA adhesive layer 212 is also made of OCA (Optically Transparent Acrylic Acid) material, which facilitates light transmission. The second light guide plate 211 is used to guide the light from below upwards at an angle, for example, guiding the glare from below towards the screen of the laptop computer, or tilting it to the upper left or upper right, so that the glare will not shine directly into the eyes. The second light guide plate 211 is usually made of optical grade acrylic (PMMA) material.

[0036] In this embodiment, the second light guide plate 211 is provided with multiple micro-recessed structures, which are distributed in an array and are tilted. The micro-recessed structures are like dots or lines with a diameter of 0.01-0.5 mm. These structures are equivalent to miniature prisms and can change the propagation path of light. When light enters from the side, most of it undergoes total internal reflection and propagates along the length of the plate. After encountering the surface microstructures, it is refracted to different angles and finally emitted uniformly from the front. This design can control the brightness non-uniformity within 5%, significantly improving the light control efficiency.

[0037] In this embodiment, the angle between the micro-recessed structure and the vertical direction is 40 to 60 degrees. This angle prevents light from escaping vertically. By adjusting the installation direction of this invention, the glare can be directed towards the screen, thus preventing light from directly entering the eyes.

[0038] In this embodiment, the diffusion component 3 includes a diffusion sheet 31 and a third OCA adhesive layer 32. The diffusion sheet 31 is bonded and fixed to the bottom of the light weakening component 2 through the third OCA adhesive layer 32. In order to ensure that the light can reach the semi-transparent glass cover 1 smoothly, the third OCA adhesive layer 32 is also made of OCA (optical transparent adhesive) material to facilitate light transmission. The diffusion sheet 31 diffuses the light guided by the first light guide component 4 located below, making the glare brighter. The diffusion sheet 31 is usually made of polycarbonate (PC) or polyester (PET) material as the substrate.

[0039] In this embodiment, the first light guide assembly 4 includes a first light guide plate 41 and a fourth OCA adhesive layer 42. The first light guide plate 41 is bonded and fixed to the bottom of the diffusion assembly 3 through the fourth OCA adhesive layer 42. The fourth OCA adhesive layer 42 is also made of OCA (optical transparent adhesive) material, which facilitates light transmission. The first light guide plate 41 is used to guide the light emitted from the side light source area 7 vertically upward, so as to ultimately make the semi-transparent glass cover 1 have a bright effect. The first light guide plate 41 is usually made of optical grade acrylic (PMMA) material.

[0040] In this embodiment, the reflective component 5 includes a reflective sheet 51 and a fifth OCA adhesive layer 52. The reflective sheet 51 is bonded and fixed to the bottom of the first light guide component 4 through the fifth OCA adhesive layer 52. In order to ensure that the reflected light during touch can smoothly irradiate the circuit board component 6, the fifth OCA adhesive layer 52 is also made of OCA (Optically Transparent Acrylic Acid) material to facilitate light transmission. The reflective sheet 51 optimizes the light distribution, reduces light loss in the touch area, and ensures that the capacitance change generated when the finger touches is more obvious, thereby improving the touch response speed and accuracy. The reflective sheet 51 is usually made of PET substrate composite nano-scale metal coating. This material combination has both thermal stability and light control performance, which can meet the requirements of touch screen for reflection efficiency and light transmission.

[0041] In this embodiment, the circuit board assembly 6 includes a PCBA board 61 and a sixth OCA adhesive layer 62. The PCBA board 61 is bonded and fixed to the bottom of the reflective assembly 5 through the sixth OCA adhesive layer 62. In order to ensure light transmittance, the sixth OCA adhesive layer 62 is also made of OCA (optical transparent adhesive) material to facilitate light transmission. The PCBA board 61 has a circuit layout for realizing touch pressing. When the semi-transparent glass cover 1 is touched, the PCBA board 61 can capture the touch command.

[0042] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A backlight touch panel structure based on an eye-protection filter, characterized in that, The device includes a semi-transparent glass cover, a light weakening component, a diffusion component, a first light guide component, a reflection component, and a circuit board assembly. The semi-transparent glass cover, the light weakening component, the diffusion component, the first light guide component, the reflection component, and the circuit board assembly are stacked and bonded together in sequence. When a light source shines on the first light guide component from the side, the light weakening component can scatter the light guided by the first light guide component upward at an angle.

2. The backlight touch panel structure based on the eye protection function of the filter according to claim 1, characterized in that, Each layer between the semi-transparent glass cover and the circuit board assembly is bonded and fixed by an OCA adhesive layer.

3. The backlight touch panel structure based on the eye protection function of the filter according to claim 1, characterized in that, The light weakening component includes a second light guide component and a light filter component. The second light guide component is bonded and fixedly connected to the bottom of the semi-transparent glass cover, and the light filter component is bonded and fixedly connected to the bottom of the second light guide component.

4. The backlight touch panel structure based on the eye protection function of the filter according to claim 3, characterized in that, The light filtering assembly includes a light filtering plate and a first OCA adhesive layer. The light filtering plate is bonded and fixedly connected to the bottom of the second light guiding assembly through the first OCA adhesive layer, and the diffusion assembly is bonded and fixedly connected to the bottom of the light filtering plate.

5. The backlight touch panel structure based on the eye protection function of the filter according to claim 4, characterized in that, The second light guide assembly includes a second light guide plate and a second OCA adhesive layer. The second light guide plate is bonded and fixedly connected to the bottom of the semi-transparent glass cover through the second OCA adhesive layer, and the filter plate is bonded and fixedly connected to the bottom of the second light guide plate through the first OCA adhesive layer.

6. The backlight touch panel structure based on the eye protection function of the filter according to claim 5, characterized in that, The second light guide plate is provided with a plurality of micro-recessed structures, the plurality of micro-recessed structures are distributed in an array, and the plurality of micro-recessed structures are inclined.

7. The backlight touch panel structure based on the eye protection function of the filter according to claim 6, characterized in that, The angle between the micro-indentation structure and the vertical direction is 40 to 60 degrees.

8. The backlight touch panel structure based on the eye protection function of the filter according to claim 1, characterized in that, The diffusion assembly includes a diffusion sheet and a third OCA adhesive layer. The diffusion sheet is bonded and fixed to the bottom of the light weakening assembly through the third OCA adhesive layer.

9. The backlight touch panel structure based on the eye protection function of the filter according to claim 1, characterized in that, The first light guide assembly includes a first light guide plate and a fourth OCA adhesive layer. The first light guide plate is bonded and fixedly connected to the bottom of the diffusion assembly through the fourth OCA adhesive layer.

10. The backlight touch panel structure based on the eye protection function of the filter according to claim 1, characterized in that, The reflective component includes a reflective sheet and a fifth OCA adhesive layer. The reflective sheet is bonded and fixed to the bottom of the first light guide component through the fifth OCA adhesive layer.

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