Backlit touchpad with different visual patterns

Abstract

The utility model provides a kind of backlight touchpad with different visual graphics, it is related to computer technology field, including glass cover plate, diffusion subassembly, multi-pattern light guide subassembly, reflection subassembly, circuit board subassembly, glass cover plate, diffusion subassembly, multi-pattern light guide subassembly, reflection subassembly, circuit board subassembly are sequentially laminated and adhered fixed connection, light-emitting area is equipped on circuit board subassembly, the light pattern formed by the light of the light-emitting area of multi-pattern light guide subassembly can, according to the different area of pressing pattern, different pressing effect is realized;The backlight touchpad with different visual graphics can prompt different pressing area with different light-emitting pattern, improve the use function of touchpad.

Description

Technical Field

[0001] This utility model relates to the field of computer technology, and in particular to a backlit touchpad with different visual graphics. Background Technology

[0002] The touchpad module is an input device built into a laptop computer. To enhance the visual experience and enable usability in low-light environments, some modules are backlit, such as... Figure 2 It achieves both light emission and touch control effects by attaching a backlight module component to the back and using LED light sources on the sides to emit light.

[0003] Currently, most illuminated touchpad modules have a single pattern that can only be switched in color. They cannot provide functional prompts to users about the area to be pressed based on the position of the pattern, resulting in limited functionality.

[0004] Therefore, it is necessary to propose a backlit touchpad with different visual graphics to indicate different pressing areas with different luminous patterns, thereby improving the functionality of the touchpad. Utility Model Content

[0005] To address the aforementioned issues, this invention proposes a backlit touchpad with different visual graphics to indicate different pressing areas using different luminous patterns, thereby improving the touchpad's functionality.

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

[0007] This utility model proposes a backlit touch panel with different visual patterns, including a glass cover, a diffusion component, a multi-pattern light guide component, a reflection component, and a circuit board assembly. The glass cover, the diffusion component, the multi-pattern light guide component, the reflection component, and the circuit board assembly are stacked and bonded together in sequence. The circuit board assembly has a light-emitting area. The multi-pattern light guide component can form patterns through the light emitted by the light-emitting area. Different pressing effects can be achieved by pressing different areas of the pattern.

[0008] Furthermore, each layer between the glass cover and the reflective assembly is bonded and fixed by an OCA adhesive layer.

[0009] Furthermore, the multi-pattern light guide component includes at least two patterned light guide layers, which are stacked sequentially on the bottom of the diffusion component.

[0010] Furthermore, the patterned light guide layer includes a first OCA adhesive layer and a light guide plate. The light guide plate of the first layer is bonded and fixedly connected to the bottom of the diffusion component through the first OCA adhesive layer. The remaining light guide plates are stacked and bonded and fixedly connected through the first OCA adhesive layer. The reflection component is bonded and fixedly connected to the bottom of the last light guide plate.

[0011] Furthermore, each of the light guide plates is provided with different pattern markings, and each pattern marking is distributed in a staggered manner.

[0012] Furthermore, the diffusion assembly includes a second OCA adhesive layer and a diffusion sheet. The diffusion sheet is bonded and fixedly connected to the bottom of the glass cover plate through the second OCA adhesive layer, and the multi-pattern light guide assembly is bonded and fixedly connected to the bottom of the diffusion sheet.

[0013] Furthermore, the reflective assembly includes a third OCA adhesive layer and a reflective sheet. The reflective sheet is bonded and fixedly connected to the bottom of the multi-pattern light guide assembly through the third OCA adhesive layer, and the circuit board assembly is bonded and fixedly connected to the bottom of the reflective sheet.

[0014] Furthermore, the circuit board assembly includes a fourth adhesive layer and a PCBA board. The PCBA board is bonded and fixed to the bottom of the reflective component through the fourth adhesive layer, and the light-emitting area is disposed on the PCBA board.

[0015] The beneficial effects of this utility model are:

[0016] This invention employs a glass cover, a diffusion component, a multi-pattern light guide component, a reflection component, and a circuit board component, which are sequentially stacked and bonded together. The multi-pattern light guide component can form patterns through the light emitted from the light-emitting area. Different pressing effects are achieved by pressing different areas of the pattern. In other words, the multi-pattern light guide component can form multiple patterns through the light emitted from the light-emitting area on the circuit board component to prompt the user to press different areas of the glass cover, thereby realizing different touch functions and enabling the touchpad to be used in a multi-functional manner. In summary, this backlit touchpad with different visual graphics can prompt different pressing areas with different light-emitting patterns, improving the functionality of the touchpad. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the stacking of backlit touch panels with different visual graphics according to the present invention.

[0018] Figure 2 This is a schematic diagram of the stacking of a backlight touch panel in the prior art.

[0019] The attached figures are labeled as follows:

[0020] Glass cover plate 1;

[0021] Diffusion assembly 2, second OCA adhesive layer 21, diffusion sheet 22;

[0022] Multi-pattern light guide assembly 3, patterned light guide layer 31, first OCA adhesive layer 311, light guide plate 312;

[0023] Reflective component 4, third OCA adhesive layer 41, reflective sheet 42;

[0024] Circuit board assembly 5, fourth adhesive layer 52, PCBA board 53. Detailed Implementation

[0025] 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.

[0026] Please refer to Figure 1 This utility model proposes a backlit touch panel with different visual patterns, including a glass cover plate 1, a diffusion component 2, a multi-pattern light guide component 3, a reflection component 4, and a circuit board assembly 5. The glass cover plate 1, diffusion component 2, multi-pattern light guide component 3, reflection component 4, and circuit board assembly 5 are stacked and bonded together in sequence. The circuit board assembly 5 is provided with a light-emitting area 51. The multi-pattern light guide component 3 can form multiple patterns through the light emitted by the light-emitting area 51 to prompt the user to press different areas of the glass cover plate 1 to achieve different touch functions.

[0027] In this embodiment, a glass cover plate 1, a diffusion component 2, a multi-pattern light guide component 3, a reflection component 4, and a circuit board component 5 are sequentially stacked and bonded together. The multi-pattern light guide component 3 can form patterns through the light emitted by the light-emitting area 51. Different pressing effects can be achieved by pressing different areas of the pattern. That is, the multi-pattern light guide component 3 can form multiple patterns through the light emitted by the light-emitting area 51 on the circuit board component 5, such as forming the left and right mouse button patterns or the number key patterns, to prompt the user to press different areas of the glass cover plate 1 to achieve different touch functions. For example, pressing the formed left mouse button pattern triggers the left click function of the touchpad, and pressing the formed number pattern inputs the pressed number into the computer text. In this way, the touchpad can be used in a multi-functional way.

[0028] In summary, this backlit touchpad with different visual graphics can indicate different pressing areas with different luminous patterns, thus improving the touchpad's functionality.

[0029] In this embodiment, each layer between the glass cover plate 1 and the reflective component 4 is bonded and fixed by an OCA (Optically Transparent Adhesive) adhesive layer. Using OCA for bonding will not block the light emitted by the light-emitting area 51, which is beneficial for light transmission.

[0030] In this embodiment, the multi-pattern light guide component 3 includes at least two pattern light guide layers 31, which are stacked sequentially on the bottom of the diffusion component 2. The pattern light guide layers 31 can be respectively set with different light guide patterns and stacked in a multi-layer form, so that the light guide patterns in different areas can be staggered, making it convenient for the user to press the corresponding area.

[0031] In this embodiment, the patterned light guide layer 31 includes a first OCA adhesive layer 311 and a light guide plate 312. The first light guide plate 312 is bonded and fixedly connected to the bottom of the diffusion component 2 through the first OCA adhesive layer 311. The remaining light guide plates 312 are laminated and bonded and fixedly connected through the first OCA adhesive layer 311. The reflection component 2 is bonded and fixedly connected to the bottom of the last light guide plate 312. The first OCA adhesive layer 311 is made of OCA (optical transparent adhesive) material, which facilitates light transmission. The light guide plate 312 is provided with a pattern corresponding to the pressing area function. When the layers are stacked, the patterns can be staggered. The light guide plate 312 is usually made of optical grade acrylic (PMMA) material or PC (polycarbonate) material.

[0032] In this embodiment, each light guide plate is provided with different pattern markings, and each pattern marking is staggered. For example, taking two layers of light guide plates 312 as an example, the pattern on the first layer of light guide plate 312 is the left and right mouse button pattern, located in the upper area, that is, the area close to the laptop keyboard, while the pattern on the second layer of light guide plate 312 is the numeric keypad pattern, located in the lower area. When the first layer of light guide plate 312 is bonded and fixed to the second layer of light guide plate 312 through the first OCA adhesive layer 311, then from a top-view angle, the left and right mouse button pattern and the numeric keypad pattern fill the entire glass cover plate 1. In other words, when the user presses the left mouse button pattern, the left mouse button function of the touchpad is triggered, and when the user presses the number pattern, the number input function of the touchpad is triggered. The number of layers of the light guide plate 312 is not limited to two layers. That is, the number of layers and the pattern of the pattern light guide layer 31 can be designed according to the user's needs. For example, in the case of a three-layer pattern light guide layer 31, one layer of the light guide plate 312 can be the left and right mouse button pattern, the middle layer of the light guide plate 312 can be the number key pattern, and the last layer of the light guide plate 312 can be the function key pattern. Different patterns of multiple layers of light guide plates 312 can present different pattern prompt effects, and thus different pressing effects are formed for different patterns.

[0033] In this embodiment, the diffusion component 2 includes a second OCA adhesive layer 21 and a diffusion sheet 22. The diffusion sheet 22 is bonded and fixedly connected to the bottom of the glass cover plate 1 through the second OCA adhesive layer 21, and the multi-pattern light guide component 3 is bonded and fixedly connected to the bottom of the diffusion sheet 22. In order to ensure that the light can reach the glass cover plate 1 smoothly, the second OCA adhesive layer 21 is also made of OCA (optical transparent adhesive) material to facilitate light transmission. The diffusion sheet 22 diffuses the pattern light transmitted by the multi-pattern light guide component 3 located below, making the pattern brighter. The diffusion sheet 22 is usually made of polycarbonate (PC) or polyester (PET) material as the substrate.

[0034] In this embodiment, the reflective component 4 includes a third OCA adhesive layer 41 and a reflective sheet 42. The reflective sheet 42 is bonded and fixedly connected to the bottom of the multi-pattern light guide component 3 through the third OCA adhesive layer 41, and the circuit board component 5 is bonded and fixedly connected to the bottom of the reflective sheet 42. In order to ensure that the light from the light-emitting area 51 can smoothly irradiate into the multi-pattern light guide component 3, the third OCA adhesive layer 41 is also made of OCA (Optically Transparent Acid) material to facilitate light transmission. The reflective sheet 42 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. The reflective sheet 42 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.

[0035] In this embodiment, the circuit board assembly 5 includes a fourth adhesive layer 52 and a PCBA board 53. The PCBA board 53 is bonded and fixed to the bottom of the reflective assembly 4 through the fourth adhesive layer 52. The light-emitting area 51 is disposed on the PCBA board 53 (printed circuit board). The fourth adhesive layer 52 can be water-based adhesive or double-sided adhesive, mainly used to bond and fix the PCBA board 53. The light-emitting area 51 can be positioned as needed to illuminate the multi-pattern light guide assembly 3. The PCBA board 53 has a circuit layout for realizing touch pressing. When the glass cover 1 is touched, the PCBA board 53 can capture the touch command.

[0036] 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 backlit touchpad with different visual graphics, characterized in that, The device includes a glass cover, a diffusion component, a multi-pattern light guide component, a reflection component, and a circuit board assembly. The glass cover, the diffusion component, the multi-pattern light guide component, the reflection component, and the circuit board assembly are stacked and bonded together in sequence. The circuit board assembly has a light-emitting area. The multi-pattern light guide component can form a pattern through the light emitted by the light-emitting area. Different pressing effects can be achieved by pressing different areas of the pattern.

2. The backlit touch panel with different visual graphics according to claim 1, characterized in that, Each layer between the glass cover and the reflective assembly is bonded and fixed by an OCA adhesive layer.

3. The backlit touch panel with different visual graphics according to claim 1, characterized in that, The multi-pattern light guide component includes at least two patterned light guide layers, which are stacked sequentially on the bottom of the diffusion component.

4. The backlit touch panel with different visual graphics according to claim 3, characterized in that, Each of the patterned light guide layers includes a first OCA adhesive layer and a light guide plate. The light guide plate of the first layer is bonded and fixedly connected to the bottom of the diffusion component through the first OCA adhesive layer. The remaining light guide plates are stacked and bonded and fixedly connected through the first OCA adhesive layer. The reflection component is bonded and fixedly connected to the bottom of the last light guide plate.

5. The backlit touch panel with different visual graphics according to claim 4, characterized in that, Each of the light guide plates is provided with different pattern markings, and each pattern marking is distributed in a staggered manner.

6. The backlit touch panel with different visual graphics according to claim 1, characterized in that, The diffusion assembly includes a second OCA adhesive layer and a diffusion sheet. The diffusion sheet is bonded and fixedly connected to the bottom of the glass cover plate through the second OCA adhesive layer, and the multi-pattern light guide assembly is bonded and fixedly connected to the bottom of the diffusion sheet.

7. The backlit touch panel with different visual graphics according to claim 1, characterized in that, The reflective assembly includes a third OCA adhesive layer and a reflective sheet. The reflective sheet is bonded and fixedly connected to the bottom of the multi-pattern light guide assembly through the third OCA adhesive layer, and the circuit board assembly is bonded and fixedly connected to the bottom of the reflective sheet.

8. The backlit touch panel with different visual graphics according to claim 1, characterized in that, The circuit board assembly includes a fourth adhesive layer and a PCBA board. The PCBA board is bonded and fixed to the bottom of the reflective component through the fourth adhesive layer, and the light-emitting area is disposed on the PCBA board.

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