Luminous touchpad
By integrating the parallax barrier light source module on the touchpad to generate a three-dimensional image, the problem of inconvenience in operation of the existing touchpad in low-light environments is solved, and higher operational convenience and user adaptability are achieved.
Patent Information
- Application Number
- CN202311539232.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-17
- Publication Date
- 2025-05-20
AI Technical Summary
The existing trackpad still has room for improvement in design, especially in terms of convenience and operability, especially when used in low-light environments.
A light emitting touch panel is adopted, including a protective layer, a touch module and a parallax barrier light source module, and a parallax barrier pattern generates multiple light emitting patterns to form a three-dimensional image, improving operational convenience.
In low-light environments, the light-emitting touchpad can be effectively operated, and the user experience can be improved through stereo images to present operable actions or openable applications.
Smart Images
Figure CN120020682A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a touchpad, and more particularly to a light-emitting touchpad. Background Art
[0002] Touchpads have a wide range of applications in electronic products. For example, a touchpad can be applied to a smart phone to allow a user to quickly execute a set action or open a set application. Alternatively, a touchpad can be applied to a laptop computer to replace the mouse function.
[0003] In order to further improve the convenience of the touchpad, application program patterns can be set on the touchpad. When an application program pattern is touched, the corresponding application program will be opened. However, for users, there is still room for improvement in the design of current touchpads on the market. Summary of the Invention
[0004] The present invention provides a light-emitting touchpad, which can provide an intuitive operation function.
[0005] An embodiment of the present invention provides a light-emitting touchpad, which includes a protective layer, a touch module, and a parallax barrier light source module. The touch module is disposed between the protective layer and the parallax barrier light source module. The parallax barrier light source module has a parallax barrier pattern or is used to generate a parallax barrier pattern. The parallax barrier light source module also has a plurality of patterns and generates a plurality of light-emitting patterns through these patterns, or the parallax barrier light source module directly generates light-emitting patterns. Through the parallax barrier pattern, the light of the light-emitting pattern passes through the touch module and the protective layer to form a plurality of stereoscopic images.
[0006] Based on the above, in the light-emitting touchpad of an embodiment of the present invention, the parallax barrier light source module has a parallax barrier pattern or is used to generate a parallax barrier pattern. The parallax barrier light source module also has a plurality of patterns and generates a plurality of light-emitting patterns through the patterns, or the parallax barrier light source module directly generates light-emitting patterns. Through the parallax barrier pattern, the light of the light-emitting pattern passes through the touch module and the protective layer to form a plurality of stereoscopic images. Therefore, the system can present stereoscopic images in a light-emitting manner, enabling the user to still operate the light-emitting touchpad in an environment with low illumination. Moreover, the system can present operable actions or openable application programs through the stereoscopic images. Therefore, the adaptability of the user to use the light-emitting touchpad can be further improved. Brief Description of the Drawings
[0007] Figure 1 is a schematic diagram of a light-emitting touchpad according to an embodiment of the present invention applied to an electronic device;
[0008] Figure 2 is a cross-sectional schematic diagram of a light-emitting touchpad according to an embodiment of the present invention;
[0009] Figure 3 A schematic diagram of the viewing angle of a stereoscopic image of a light-emitting touch panel according to an embodiment of the present invention;
[0010] Figure 4 A schematic diagram of a light-emitting touch panel according to an embodiment of the present invention;
[0011] Figure 5 A cross-sectional schematic diagram of a light-emitting touch panel according to an embodiment of the present invention;
[0012] Figure 6 A cross-sectional schematic diagram of a light-emitting touch panel according to an embodiment of the present invention. Detailed implementation manners
[0013] Figure 1 A schematic diagram of a light-emitting touch panel according to an embodiment of the present invention applied to an electronic device. Figure 2 A cross-sectional schematic diagram of a light-emitting touch panel according to an embodiment of the present invention. Please refer to Figure 1 and Figure 2 , an embodiment of the present invention provides a light-emitting touch panel 100, which is suitable for being applied to an electronic device 10. The electronic device 10 is, for example, a notebook computer, a smart phone or a keyboard, but the present invention is not limited thereto.
[0014] In this embodiment, the light-emitting touch panel 10 includes a protective layer 110, a touch module 120 and a parallax barrier light source module 130. The protective layer 110 is, for example, a flat plate made of a transparent material such as plastic or glass. In an embodiment, the protective layer 110 may be a light-transmitting flat plate subjected to atomization treatment.
[0015] In this embodiment, the touch module 120 is disposed between the protective layer 110 and the parallax barrier light source module 130. The parallax barrier light source module 130 has a parallax barrier pattern BPT or is used to generate a parallax barrier pattern BPT. The parallax barrier light source module 130 also has a plurality of patterns PT and generates a plurality of light-emitting patterns IPT through these patterns PT, or the parallax barrier light source module 130 directly generates a light-emitting pattern IPT. Through the parallax barrier pattern BPT, the light of the light-emitting pattern IPT passes through the touch module 120 and the protective layer 110 to form a plurality of stereoscopic images SI.
[0016] Specifically, in this embodiment, the parallax barrier type light source module 130 includes a parallax barrier pattern layer 131, a substrate 132, a pattern layer 133, a light guide layer 134, and a light source 135. The parallax barrier pattern layer 131 includes a parallax barrier pattern BPT. The parallax barrier pattern layer 131 is disposed between the touch module 120 and the substrate 132. The pattern layer 133 is disposed on a side of the substrate 132 relative to the parallax barrier pattern layer 131 and includes a pattern PT. Among them, the pattern layer 133 has a light transmissive area TA and a non-light transmissive area NTA, and the pattern PT is disposed in the light transmissive area TA.
[0017] For example, the non-light transmissive area NTA can be black opaque ink. Alternatively, the color of the non-light transmissive area NTA can be the same as the color of the electronic device 10, so that the light-emitting touch panel 100 has visual consistency with the electronic device 10 when not emitting light.
[0018] In order to improve the visual consistency between the light-emitting touch panel 100 and the electronic device 10 when not emitting light, in this embodiment, the light transmittance of the light transmissive area TA is preferably less than 70%.
[0019] In this embodiment, the light source 135 is, for example, a light-emitting diode (LED) light source or other suitable light source. The light source 135 is disposed beside the light guide layer 134 and is used to emit an illumination beam IL. The pattern layer 133 is disposed between the substrate 132 and the light guide layer 134. The light guide layer 134 is, for example, a light guide film or a light guide plate. The illumination beam IL is first transmitted to the light guide layer 134 and then transmitted to the pattern PT through the light guide layer 134 to generate a light-emitting pattern IPT. The light of the light-emitting pattern IPT sequentially passes through the substrate 132, the parallax barrier pattern layer 131, the touch module 120, and the protective layer 110 to form a stereoscopic image SI. That is to say, when the illumination beam IL is transmitted to the pre-designed pattern PT to generate the light-emitting pattern IPT, these light-emitting patterns IPT are transmitted to the left or right eye of the viewer through the parallax barrier pattern layer 131, so that the viewer visually has the effect of seeing the stereoscopic image SI. Figure 1 For example, the stereoscopic image SI can be play, forward, backward, volume up, volume down, etc. In another embodiment, the stereoscopic image SI can also be presented in the form of text.
[0020] In this embodiment, the light-emitting touch panel 100 further includes a controller 140. The controller 140 is electrically connected to the touch module 120 and the parallax barrier type light source module 130. The controller 140 controls the parallax barrier type light source module 130 to generate a light-emitting pattern IPT, and generates a corresponding function signal FS when the position P corresponding to the stereoscopic image SI on the light-emitting touch panel 100 (protective layer 110) is touched.
[0021] In this embodiment, the controller 140 is, for example, a device including a microcontroller unit (MCU), a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a programmable controller, a programmable logic device (PLD), or other similar devices, or a combination of these devices. The present invention is not limited thereto. Further, in an embodiment, each function of the controller 140 may be implemented as a plurality of program codes. These program codes are stored in a memory and executed by the controller 140. Alternatively, in an embodiment, each function of the controller 140 may be implemented as one or more circuits. The present invention does not limit the implementation of each function of the controller 140 in terms of software or hardware.
[0022] In this embodiment, the parallax barrier pattern 131 has a plurality of slits SL. The light-emitting touch panel 100 satisfies the following relationship: S’ > S, where S is the pitch between any two adjacent slits SL, and S’ is the pitch between two patterns PT or two light-emitting patterns IPT corresponding to the any two adjacent slits SL.
[0023] In this embodiment, the light-emitting touch panel 100 further satisfies the following relationship: 1.00005 ≤ S’ / S ≤ 1.005.
[0024] For example, the substrate 132 has a refractive index, such as a refractive index of 1.3. When light passes through the substrate 132, refraction occurs (but for the sake of conveniently explaining the relationship between the pitches S and S’, Figure 2 it is simply schematically shown that the light of the light-emitting pattern IPT passes through the slit SL in a straight line and then is transmitted to the viewer). Therefore, the light-emitting touch panel 100 needs to satisfy the relationship of S’ > S. Considering the thickness T of the substrate 132, for example, T < 0.6 mm. Therefore, the light-emitting touch panel 100 preferably satisfies the relationship of 1.00005 ≤ S’ / S ≤ 1.005.
[0025] Figure 3 is a schematic diagram of the viewing angle of a stereoscopic image of a light-emitting touch panel according to an embodiment of the present invention. Please refer to Figure 3 In this embodiment, the viewing angle θ of the stereoscopic image SI is less than or equal to 80 degrees.
[0026] Based on the above, in an embodiment of the present invention, the light-emitting touch panel 100 includes a protective layer 110, a touch module 120, and a parallax barrier light source module 130. The parallax barrier light source module 130 has a parallax barrier pattern 131 or is used to generate a parallax barrier pattern BPT. The parallax barrier light source module 130 also has a plurality of patterns PT and generates a plurality of light-emitting patterns IPT through the patterns PT, or the parallax barrier light source module 130 directly generates the light-emitting patterns IPT. Through the parallax barrier pattern BPT, the light of the light-emitting pattern IPT passes through the touch module 120 and the protective layer 110 to form a plurality of stereoscopic images SI. Therefore, the system can present the stereoscopic images SI in a light-emitting manner, enabling the user to operate the light-emitting touch panel 100 even in an environment with low illumination. Moreover, the system can present operable actions or openable application programs through the stereoscopic images SI, which can further enhance the adaptability of the user to use the light-emitting touch panel 100.
[0027] Figure 4 is a schematic diagram of a light-emitting touch panel according to an embodiment of the present invention. Please refer to Figure 4 , the light-emitting touch panel 100A is similar to the Figure 2 light-emitting touch panel 100, and its main differences are as follows. In this embodiment, the protective layer 110A has a plurality of non-light-emitting patterns NPT on one side relative to the touch module 120. When the position corresponding to the non-light-emitting pattern NPT on the light-emitting touch panel 100A (protective layer 110A) is touched, the controller 140 generates a corresponding function signal FS. For example, the non-light-emitting pattern NPT can be the drawing or name of a commonly used application program (such as a browser, a calculator software, a video software, etc.). When the user touches the non-light-emitting pattern NPT, the system can open the corresponding application program.
[0028] Figure 5 is a cross-sectional schematic diagram of a light-emitting touch panel according to an embodiment of the present invention. Please refer to Figure 5 , the light-emitting touch panel 100B is similar to the Figure 2 light-emitting touch panel 100 or Figure 4is similar to the light-emitting touch panel 100A of the present invention, and the main differences are as follows. In this embodiment, the parallax barrier light source module 130B includes a parallax barrier pattern layer 131, a substrate 132, and a display module 136B. The display module 136B is, for example, a liquid crystal display, an organic light emitting diode (OLED) display, or the like. The display module 136B is disposed on one side of the substrate 132 relative to the parallax barrier pattern layer 131 and is configured to generate a light-emitting pattern IPT. The light of the light-emitting pattern IPT sequentially passes through the substrate 132, the parallax barrier pattern layer 131, the touch module 120, and the protective layer 110 to form a stereoscopic image SI. That is to say, the display module 136B can directly generate the light-emitting pattern IPT. Therefore, the system can change the stereoscopic image SI generated by the light-emitting touch panel 100B by changing the light-emitting pattern IPT; or, the stereoscopic image SI generated by the light-emitting touch panel 100B can be changed according to the different application programs started by the system.
[0029] Figure 6 is a cross-sectional schematic view of a light-emitting touch panel according to an embodiment of the present invention. Please refer to Figure 6 , the light-emitting touch panel 100C is similar to Figure 5 the light-emitting touch panel 100B, and the main differences are as follows. In this embodiment, the parallax barrier light source module 130C includes a display module 136C. The touch module 120 is disposed between the protective layer 110 and the display module 136C. The display module 136C is, for example, a 3D display. The display module 136C is configured to generate a parallax barrier pattern BPT and a light-emitting pattern IPT. Through the parallax barrier pattern BPT, the light of the light-emitting pattern IPT sequentially passes through the touch module 120 and the protective layer 110 to form a stereoscopic image SI. That is to say, the display module 136C can not only directly generate the light-emitting pattern IPT, but also generate a parallax barrier pattern BPT. Moreover, in another embodiment, the display module 136C can further control the position of the light-emitting pattern IPT or the position of the slits in the parallax barrier pattern BPT. Therefore, the system can change the stereoscopic image SI generated by the light-emitting touch panel 100C by changing the light-emitting pattern; or, the stereoscopic image SI generated by the light-emitting touch panel 100C can be changed according to the different application programs started by the system.
[0030] In summary, in an embodiment of the present invention, the light-emitting touch panel includes a protective layer, a touch module, and a parallax barrier light source module. The parallax barrier light source module has a parallax barrier pattern or is used to generate a parallax barrier pattern. The parallax barrier light source module also has a plurality of patterns and generates a plurality of light-emitting patterns through the patterns, or the parallax barrier light source module directly generates light-emitting patterns. Through the parallax barrier pattern, the light of the light-emitting patterns passes through the touch module and the protective layer to form a plurality of stereoscopic images. Therefore, the system can present stereoscopic images by means of light emission, enabling the user to operate the light-emitting touch panel even in an environment with low illumination. Moreover, the system can present operable actions or applications that can be opened through stereoscopic images, further enhancing the adaptability of the user to use the light-emitting touch panel.
Claims
1. A luminous touch panel, characterized in that: include: Protective layer; Touch module; as well as A parallax barrier light source module, wherein the touch module is disposed between the protective layer and the parallax barrier light source module, the parallax barrier light source module has a parallax barrier pattern or is used to generate the parallax barrier pattern, the parallax barrier light source module further has a plurality of patterns and generates a plurality of light-emitting patterns through the plurality of patterns, or the parallax barrier light source module directly generates the plurality of light-emitting patterns, Through the parallax barrier pattern, the light of the multiple light-emitting patterns passes through the touch module and the protection layer to form a plurality of three-dimensional images.
2. The luminous touch panel according to claim 1, characterized in that: Also includes: A controller is electrically connected to the touch control module and the parallax barrier light source module. The controller controls the parallax barrier light source module to generate the plurality of light-emitting patterns, and generates corresponding function signals when positions on the light-emitting touch panel corresponding to the plurality of stereoscopic images are touched.
3. The luminous touch panel according to claim 1, characterized in that: The viewing angle of the multiple stereoscopic images is less than or equal to 80 degrees.
4. The luminous touch panel according to claim 1, characterized in that: The parallax barrier pattern has a plurality of slits, wherein: S'>S, Wherein S is the distance between any two adjacent slits, and S′ is the distance between two patterns or two luminous patterns corresponding to any two adjacent slits.
5. The luminous touch panel according to claim 1, characterized in that: The parallax barrier pattern has a plurality of slits, wherein: 1.00005≤S' / S≤1.005, Wherein S is the distance between any two adjacent slits, and S′ is the distance between two patterns or two luminous patterns corresponding to any two adjacent slits.
6. The luminous touch panel according to claim 1, characterized in that: The parallax barrier light source module comprises: a parallax barrier pattern layer, comprising the parallax barrier pattern; A substrate, wherein the parallax barrier pattern layer is disposed between the touch control module and the substrate; a pattern layer, disposed on a side of the substrate opposite to the parallax barrier pattern layer, and comprising the plurality of patterns; a light guide layer, wherein the pattern layer is disposed between the substrate and the light guide layer; and A light source is arranged beside the light guide layer and is used to emit an illumination light beam, The light of the illumination light beam is first transmitted to the light guide layer, and then transmitted to the multiple patterns through the light guide layer to generate the multiple light-emitting patterns. The multiple light-emitting patterns sequentially pass through the substrate, the parallax barrier pattern layer, the touch module and the protective layer to form the multiple three-dimensional images.
7. The luminous touch panel according to claim 6, characterized in that: The pattern layer has a light-transmitting area and a non-light-transmitting area, and the plurality of patterns are arranged in the light-transmitting area.
8. The luminous touch panel according to claim 7, characterized in that: The light transmittance of the light-transmitting area is less than 70%.
9. The luminous touch panel according to claim 1, characterized in that: The parallax barrier light source module comprises: a parallax barrier pattern layer, comprising the parallax barrier pattern; A substrate, wherein the parallax barrier pattern layer is disposed between the touch control module and the substrate; and A display module is disposed on a side of the substrate opposite to the parallax barrier pattern layer and is used to generate the plurality of light emitting patterns. The light of the plurality of light-emitting patterns sequentially passes through the substrate, the parallax barrier pattern layer, the touch module and the protection layer to form the plurality of three-dimensional images.
10. The luminous touch panel according to claim 1, characterized in that: The parallax barrier light source module comprises: a display module, wherein the touch module is disposed between the protection layer and the display module, and the display module is used to generate the parallax barrier pattern and the plurality of light-emitting patterns, Through the parallax barrier pattern, the light of the plurality of light-emitting patterns sequentially passes through the touch module and the protection layer to form the plurality of three-dimensional images.
11. The luminous touch panel according to claim 1, characterized in that: The protection layer has a plurality of non-luminous patterns on a side opposite to the touch module.
12. The luminous touch panel according to claim 11, characterized in that: Also includes: A controller is electrically connected to the touch control module. When the positions on the luminous touch panel corresponding to the plurality of non-luminous patterns are touched, the controller generates a corresponding function signal.