Backlight touchpad structure based on eye protection function of filter ink layer

Abstract

The utility model provides a kind of backlit touchpad structure based on the eye protection function of filter ink layer, it is related to computer technology field, including filter ink layer, peep-proof half-transparency glass plate assembly, backlight assembly, circuit board assembly, filter ink layer is sprayed on the upper surface of peep-proof half-transparency glass plate assembly, backlight assembly is adhered and fixedly connected in the bottom of peep-proof half-transparency glass plate assembly, circuit board assembly is adhered and fixedly connected in the bottom of backlight assembly, light source is irradiated to the backlight assembly from side, peep-proof half-transparency glass plate assembly can weaken the light guided by backlight assembly in oblique upward direction;The backlit touchpad structure based on the eye protection function of filter ink layer can effectively solve the problem that the light scattering area of luminous touchpad is too large and causes dazzling.

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 light-filtering ink layer. Background Technology

[0002] Laptops have become an indispensable part of people's daily work and life. Among them, the touchpad module, as a quick component of the laptop, allows users to interact with the system by sliding and clicking their fingers.

[0003] 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.

[0004] The backlit touchpad design in traditional gaming laptops is so bright and the light scatters in all directions that it can easily irritate the user's eyes, causing visual fatigue, even if the eyes are not directly above the touchpad, which is not conducive to prolonged use.

[0005] Therefore, it is necessary to propose a backlight touch panel structure based on the eye-protection function of the light-filtering ink layer to solve the problem of excessive light scattering area of ​​the light-emitting touch panel causing glare. Utility Model Content

[0006] To address the aforementioned issues, this invention proposes a backlight touch panel structure based on the eye-protection function of a light-filtering ink layer to solve the problem of excessive light scattering area in the luminous touch panel causing glare.

[0007] This utility model is achieved through the following technical solution:

[0008] This utility model proposes a backlight touch panel structure based on the eye protection function of a light-filtering ink layer, including a light-filtering ink layer, a privacy semi-transparent glass panel assembly, a backlight assembly, and a circuit board assembly. The light-filtering ink layer is sprayed on the upper surface of the privacy semi-transparent glass panel assembly. The backlight assembly is bonded and fixedly connected to the bottom of the privacy semi-transparent glass panel assembly, and the circuit board assembly is bonded and fixedly connected to the bottom of the backlight assembly. When a light source shines on the backlight assembly from the side, the privacy semi-transparent glass panel assembly can weaken the light guided by the backlight assembly in the upward tilt direction.

[0009] Furthermore, the privacy-protecting semi-transparent glass panel assembly, the backlight assembly, and the circuit board assembly are all bonded and fixed together by an OCA adhesive layer.

[0010] Furthermore, the privacy-protecting semi-transparent glass panel assembly includes a semi-transparent glass cover, a first OCA adhesive layer, and a privacy film layer. The privacy film layer is embedded in and bonded to the semi-transparent glass cover through the first OCA adhesive layer. The light-filtering ink layer covers both the semi-transparent glass cover and the privacy film layer.

[0011] Furthermore, the upper surface of the privacy film layer is flush with the upper surface of the semi-transparent glass cover.

[0012] Furthermore, the semi-transparent glass cover is provided with an embedding groove, and the privacy film layer is embedded and bonded to the embedding groove through the first OCA adhesive layer.

[0013] Furthermore, the embedding groove, the first OCA adhesive layer, and the privacy film layer are all rectangular ring structures.

[0014] Furthermore, the embedding groove is located on the outer peripheral side of the semi-transparent glass cover.

[0015] Furthermore, the thickness of the semi-transparent glass cover is a, and the thickness of the privacy film layer is b, where a ≥ 2b.

[0016] Furthermore, the backlight assembly includes a diffusion assembly, a light guide assembly, and a reflection assembly. The diffusion assembly is bonded and fixedly connected to the bottom of the privacy semi-transparent glass plate assembly. The diffusion assembly, the light guide assembly, and the reflection assembly are stacked in sequence and bonded and fixedly connected. The circuit board assembly is bonded and fixedly connected to the bottom of the reflection assembly.

[0017] Furthermore, the light guide assembly includes a light guide plate and a second OCA adhesive layer. The light guide plate is bonded and fixedly connected to the bottom of the diffusion assembly through the second OCA adhesive layer, and the reflection assembly is bonded and fixedly connected to the bottom of the light guide plate.

[0018] The beneficial effects of this utility model are:

[0019] This invention employs a light-filtering ink layer sprayed onto the upper surface of a privacy-protecting semi-transparent glass panel assembly. The privacy-protecting semi-transparent glass panel assembly, backlight assembly, and circuit board assembly are then sequentially stacked and bonded together. The light source area is the glare illumination used in laptops for gaming. The light source area illuminates the backlight assembly from the side, and the backlight assembly scatters the glare upwards, causing the entire touchpad to emit a glare. The privacy-protecting semi-transparent glass panel assembly weakens the light directed upwards by the backlight assembly, meaning that as long as the eyes are not directly above the touchpad, the glare will not directly enter the eyes, avoiding eye irritation. In summary, this backlight touchpad structure based on the eye-protection function of the light-filtering ink layer effectively solves the problem of excessive light scattering area in luminous touchpads causing glare. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the stacked structure of the backlight touch panel with eye protection function based on the filter ink layer of this utility model.

[0021] Figure 2 An exploded view of the privacy semi-transparent glass plate assembly of the backlight touch panel structure based on the eye protection function of the filter ink layer of this utility model.

[0022] Figure 3 This is a schematic diagram of the privacy semi-transparent glass panel assembly of the backlight touch panel structure based on the eye protection function of the filter ink layer according to this utility model.

[0023] The attached figures are labeled as follows:

[0024] Filter ink layer 1;

[0025] Anti-peep semi-transparent glass panel assembly 2, semi-transparent glass cover 21, embedded groove 211, first OCA adhesive layer 22, anti-peep film layer 23;

[0026] Backlight assembly 3, diffuser assembly 31, diffuser sheet 311, third OCA adhesive layer, light guide assembly 32, light guide plate 321, second OCA adhesive layer 322, reflective assembly 33, reflective sheet 331, fourth OCA adhesive layer 332.

[0027] Circuit board assembly 4, PCBA board 41, fifth OCA adhesive layer 42;

[0028] Light source area 5. Detailed Implementation

[0029] 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.

[0030] Please refer to Figures 1-3 This utility model proposes a backlight touch panel structure based on the eye protection function of a light-filtering ink layer, including a light-filtering ink layer 1, a privacy semi-transparent glass plate assembly 2, a backlight assembly 3, and a circuit board assembly 4. The laptop has a light source area 5. The light-filtering ink layer 1 is sprayed on the upper surface of the privacy semi-transparent glass plate assembly 2. The backlight assembly 3 is bonded and fixedly connected to the bottom of the privacy semi-transparent glass plate assembly 2. The light source area 5 is located on one side of the backlight assembly 3 and faces the backlight assembly 3. The circuit board assembly 4 is bonded and fixedly connected to the bottom of the backlight assembly 3. The privacy semi-transparent glass plate assembly 2 can weaken the light guided by the backlight assembly 3 in the upward tilt direction.

[0031] In this embodiment, a filter ink layer 1 is sprayed onto the upper surface of the privacy semi-transparent glass panel assembly 2. Then, the privacy semi-transparent glass panel assembly 2, the backlight assembly 3, and the circuit board assembly 4 are stacked and bonded together in sequence. The light source area 5 is used in the laptop to provide glare lighting for gaming. The light source area 5 shines on the backlight assembly 3 from the side, and the backlight assembly 3 scatters the glare upward, so that the entire touchpad emits glare. With the backlight assembly 3 as the center of light emission, the light emitted by the entire touchpad presents an inverted cone-shaped structure. When the glare reaches the privacy semi-transparent glass panel assembly 2, the privacy semi-transparent glass panel assembly 2 can weaken the light guided by the backlight assembly 3 in the upward tilt direction, so that the light that originally diffused to the four sides of the cone is corrected to diffuse vertically. That is, as long as the eyes are not directly above the touchpad, the glare will not directly enter the eyes, avoiding eye irritation.

[0032] In summary, this backlight touchpad structure based on the eye-protection function of the light-filtering ink layer can effectively solve the problem of excessive light scattering area of ​​the light-emitting touchpad causing glare.

[0033] In this embodiment, the privacy-protecting semi-transparent glass panel assembly 2, the backlight assembly 3, and the circuit board assembly 4 are all bonded and fixed together by an OCA adhesive layer. Using an OCA (optical transparent adhesive) adhesive layer for bonding will not block the light emitted from the light source area 5, which is beneficial for light transmission.

[0034] In this embodiment, the privacy-protecting semi-transparent glass panel assembly 2 includes a semi-transparent glass cover 21, a first OCA adhesive layer 22, and a privacy film layer 23. The privacy film layer 23 is embedded in and bonded to the semi-transparent glass cover 21 through the first OCA adhesive layer 22. The light-filtering ink layer 1 covers both the semi-transparent glass cover 21 and the privacy film layer 23. The first OCA adhesive layer 22 is made of OCA (Optically Transparent Acid) material, which facilitates light transmission. The semi-transparent glass cover 21 is used to reduce the direct light effect. The privacy film layer 23 prevents light from being emitted at an angle, so that the eyes will not be glared when looking at the touchpad at an angle. The privacy film layer 23 is made of a privacy film. The privacy film can reduce the display angle of the screen, that is, it can change the light illumination angle. Here, it is used on the privacy film layer 23 to change the light illumination angle. The privacy film adopts a nano-louver structure or polarizing layer technology. The material is polycarbonate film and acrylic resin, or a combination of padding layer and polycarbonate film.

[0035] In this embodiment, the upper surface of the privacy film layer 23 is flush with the upper surface of the semi-transparent glass cover plate 21, which facilitates the smooth application of the light-filtering ink layer 1.

[0036] In this embodiment, the semi-transparent glass cover plate 21 is provided with an embedding groove 211. The privacy film layer 23 is embedded and bonded to the embedding groove 211 through the first OCA adhesive layer 22. The embedding groove 211 is used to provide a recessed space for bonding the privacy film layer 23, so that the privacy film layer 23 is flush with the surface of the semi-transparent glass cover plate 21, and it is also convenient to position the bonding of the privacy film layer 23.

[0037] In this embodiment, the embedded groove 211, the first OCA adhesive layer 22, and the privacy film layer 23 are all rectangular ring structures. Since the touch panel is mostly rectangular, the angle of illumination of the upwardly scattered light on the outer periphery of the semi-transparent glass cover 21 is changed, thereby preventing the light from being obliquely irradiated into the eyes.

[0038] In this embodiment, the embedded groove 211 is located on the outer periphery of the semi-transparent glass cover plate 21, which helps to reduce the area of ​​the region where light is obliquely irradiated.

[0039] In this embodiment, the thickness of the semi-transparent glass cover 21 is a, and the thickness of the privacy film layer 23 is b, where a ≥ 2b. In order to ensure that the semi-transparent glass cover 21 has sufficient thickness to support the privacy film layer 23, the thickness of the semi-transparent glass cover 21 needs to be more than twice the thickness of the privacy film layer 23.

[0040] In this embodiment, the backlight assembly 3 includes a diffusion assembly 31, a light guide assembly 32, and a reflective assembly 33. The diffusion assembly 31 is bonded and fixedly connected to the bottom of the privacy semi-transparent glass plate assembly 2. The diffusion assembly 31, the light guide assembly 32, and the reflective assembly 33 are stacked and bonded and fixedly connected in sequence. The light source area 5 is located on one side of the light guide assembly 32 and faces the light guide assembly 32. The circuit board assembly 4 is bonded and fixedly connected to the bottom of the reflective assembly 33. When the light source area 5 is horizontally illuminated, the light shines into the light guide assembly 32. The light is guided upward through the light guide assembly 32 and passes through the diffusion assembly 31, the privacy semi-transparent glass plate assembly 2, and the light filter ink layer 1 in sequence before shining out to the outside. The diffusion assembly 31 is used to diffuse the light that is emitted from the light guide assembly 32, making the light brighter. The reflective assembly 33 optimizes the light distribution, reduces the 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.

[0041] In this embodiment, the light guide assembly 32 includes a light guide plate 321 and a second OCA adhesive layer 322. The light guide plate 321 is bonded and fixedly connected to the bottom of the diffusion assembly 31 through the second OCA adhesive layer 322, and the reflection assembly 33 is bonded and fixedly connected to the bottom of the light guide plate 321. The second OCA adhesive layer 322 is also made of OCA (Optically Transparent Acrylic Acid) material, which facilitates light transmission. The light guide plate 321 is used to guide the light emitted from the side light source area 5 vertically upward, so as to ultimately make the privacy semi-transparent glass plate assembly 2 have a bright effect. The light guide plate 321 is usually made of optical grade acrylic (PMMA) material.

[0042] In this embodiment, the diffusion component 31 includes a diffusion sheet 311 and a third OCA adhesive layer 312. The diffusion sheet 311 is bonded and fixed to the bottom of the privacy semi-transparent glass plate component 2, i.e., the bottom of the semi-transparent glass cover 21, through the third OCA adhesive layer 312. In order to ensure that light can reach the semi-transparent glass cover 1 smoothly, the third OCA adhesive layer 312 is also made of OCA (optical transparent adhesive) material to facilitate light transmission. The diffusion sheet 311 diffuses the light guided by the light guide plate 321 located below, making the glare brighter. The diffusion sheet 311 is usually made of polycarbonate (PC) or polyester (PET) material as the substrate.

[0043] In this embodiment, the reflective assembly 33 includes a reflective sheet 331 and a fourth OCA adhesive layer 332. The reflective sheet 331 is bonded and fixed to the bottom of the light guide plate 321 through the fourth OCA adhesive layer 332. In order to ensure that the reflected light during touch can smoothly irradiate the circuit board assembly 4, the fourth OCA adhesive layer 332 is also made of OCA (Optically Transparent Acid) material to facilitate light transmission. The reflective sheet 331 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 331 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.

[0044] In this embodiment, the circuit board assembly 4 includes a PCBA board 41 and a fifth OCA adhesive layer 42. The PCBA board 41 is bonded and fixed to the bottom of the reflective assembly 33, i.e. the bottom of the reflective sheet 331, through the fifth OCA adhesive layer 42. In order to ensure light transmittance, the fifth OCA adhesive layer 42 is also made of OCA (optical transparent adhesive) material to facilitate light transmission. The PCBA board 41 has a circuit layout for realizing touch pressing. When the privacy semi-transparent glass plate assembly 2 is touched, the PCBA board 41 can capture the touch command.

[0045] 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 the eye-protection function of a light-filtering ink layer, characterized in that, The device includes a light-filtering ink layer, a privacy-protecting semi-transparent glass panel assembly, a backlight assembly, and a circuit board assembly. The light-filtering ink layer is sprayed onto the upper surface of the privacy-protecting semi-transparent glass panel assembly. The backlight assembly is bonded and fixedly connected to the bottom of the privacy-protecting semi-transparent glass panel assembly, and the circuit board assembly is bonded and fixedly connected to the bottom of the backlight assembly. When a light source shines on the backlight assembly from the side, the privacy-protecting semi-transparent glass panel assembly can weaken the light guided by the backlight assembly in the upward tilt direction.

2. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 1, characterized in that, The privacy-protecting semi-transparent glass panel assembly, the backlight assembly, and the circuit board assembly are all bonded and fixed together by an OCA adhesive layer.

3. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 1, characterized in that, The privacy-protecting semi-transparent glass panel assembly includes a semi-transparent glass cover, a first OCA adhesive layer, and a privacy film layer. The privacy film layer is embedded in and bonded to the semi-transparent glass cover through the first OCA adhesive layer. The light-filtering ink layer covers both the semi-transparent glass cover and the privacy film layer.

4. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 3, characterized in that, The upper surface of the privacy film layer is flush with the upper surface of the semi-transparent glass cover.

5. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 3, characterized in that, The semi-transparent glass cover is provided with an embedding groove, and the privacy film layer is embedded and bonded to the embedding groove through the first OCA adhesive layer.

6. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 5, characterized in that, The embedding groove, the first OCA adhesive layer, and the privacy film layer are all rectangular ring structures.

7. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 6, characterized in that, The embedding groove is located on the outer peripheral side of the semi-transparent glass cover.

8. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 3, characterized in that, The thickness of the semi-transparent glass cover is a, and the thickness of the privacy film layer is b, where a ≥ 2b.

9. The backlight touch panel structure based on the eye-protection function of the filter ink layer according to claim 1, characterized in that, The backlight assembly includes a diffusion assembly, a light guide assembly, and a reflection assembly. The diffusion assembly is bonded and fixedly connected to the bottom of the privacy semi-transparent glass plate assembly. The diffusion assembly, the light guide assembly, and the reflection assembly are stacked in sequence and bonded and fixedly connected. The circuit board assembly is bonded and fixedly connected to the bottom of the reflection assembly.

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

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