An LED light array, system, and touch device with full-screen touch functionality

Abstract

This utility model discloses an LED light array, system, and touch device with full-screen touch functionality, relating to the field of touch screen technology. It solves the technical problems of full-screen touch light arrays being difficult to bend, having a complex structure, and high cost. The LED light array includes an LED light array circuit and a full-screen touch circuit, both of which are flexible circuit boards. The touch area of ​​the full-screen touch circuit has the same shape as the LED light array circuit and is overlapped together. The full-screen touch circuit has a hollow structure at the position of the LED beads in the LED light array circuit, allowing the light from the LED light array circuit to shine through the hollow structure. This utility model has a simple structure, the touch area of ​​the full-screen touch circuit has the same shape as the LED light array circuit and is overlapped together, resulting in low cost. Furthermore, both the LED light array circuit and the full-screen touch circuit are flexible circuit boards, facilitating bending.

Description

Technical Field

[0001] This utility model relates to the field of touch screen technology, and in particular to an LED light array, system and touch device with full-screen touch function. Background Technology

[0002] Traditional LED-lit electronic products typically use physical buttons or toggle switches for powering on / off, setting functions, switching display information, and intuitively displaying parameters such as battery level, thus enhancing the user experience. Whether it's traditional LED (Light Emitting Diode) digital tubes, TFT (Thin Film Transistor) screens, or touchscreens, users are offered a diverse range of product choices.

[0003] Currently, in order to implement touch functionality on LED display arrays, some electronic products directly adopt touch screen solutions from TFT displays, adding a touch screen module ITO sensor (Indium Tin Oxide sensor). This module consists of an ITO sensor and a self-capacitive touch screen chip to achieve high-precision touch and gesture functionality across the entire LED display.

[0004] Currently, most LED-based light array displays use LEDs. However, the input interaction functions of these LED display units are very limited, relying solely on physical buttons and switches. These buttons are too expensive, have significant structural limitations, are generally limited in number, and are inconvenient to use. TFT displays typically have touchscreen functionality, allowing for clicking or swiping across the entire screen. Touch functionality is implemented using a dedicated touchscreen chip, with one or more touch button functions implemented by a dedicated touch button chip. While TFT touchscreens can achieve complex and vibrant lighting effects and convenient touch input, the overall cost is relatively high. Furthermore, touchscreen modules composed of ITO sensors cannot be bent, while LED dot matrix screens in general electronic products are designed using FPC (Flexible Printed Circuit) boards, which can be bent into two 90° angles for a three-sided display, making touchscreen design difficult. There is an urgent need for a new, low-cost, flexible, and foldable solution that can achieve full-screen touch input and output functionality.

[0005] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0006] Full-screen touch light arrays are difficult to bend, have a complex structure, and are relatively expensive. Utility Model Content

[0007] The purpose of this utility model is to provide an LED light array, system, and touch device with full-screen touch functionality, to solve the technical problems of existing full-screen touch light arrays being difficult to bend, having a complex structure, and being costly. The various technical effects of the preferred technical solutions provided by this utility model are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This utility model provides an LED light array with full-screen touch function, including an LED light array circuit and a full-screen touch circuit, both of which are flexible circuit boards; the touch area of ​​the full-screen touch circuit has the same shape as the LED light array circuit and is overlapped together; the full-screen touch circuit has a hollow structure at the position of the LED light array circuit, so that the light of the LED light array circuit can be transmitted through the hollow structure.

[0010] Preferably, the touch area of ​​the full-screen touch circuit is divided into multiple touch sub-areas, and each touch sub-area is provided with a touch sensing channel. The pattern shape of the touch sensing channel is square or zigzag cross.

[0011] Preferably, the touch area of ​​the full-screen touch circuit is divided into multiple touch sub-areas, and each touch sub-area has a touch sensing channel on its front and back sides.

[0012] Preferably, the pattern shape of the touch sensing channel is square or zigzag cross, and it completely overlaps on the front and back of the touch sub-area.

[0013] Preferably, the touch area of ​​the full-screen touch circuit is divided into several equal parts in both the length and width directions, resulting in multiple touch sub-areas.

[0014] Preferably, each of the touch sub-regions is provided with a touch sensing channel, which is a diamond pattern or a strip pattern, and performs multi-touch based on a mutual capacitance mode.

[0015] Preferably, the LED light array circuit and the full-screen touch circuit are disposed on the same flexible circuit board, resulting in a fused circuit board.

[0016] Preferably, the fusion circuit board has a four-layer structure. The top layer is provided with the LED array of the LED array circuit and the wiring pattern of the full-screen touch circuit. The second layer adjacent to the top layer is provided with the same-drive isolation pattern and touch channel connection. The third layer and the bottom layer adjacent to the second layer are used for the LED array wiring of the LED array circuit.

[0017] An LED light array system with full-screen touch functionality includes an LED light array with full-screen touch functionality as described above, a main control chip, a touch control MCU chip, and an LED driver chip; the main control chip is connected to the touch control MCU chip via an IIC serial port; the touch control MCU chip is a control chip with built-in touch functionality, and is connected to the full-screen touch circuit for controlling the full-screen touch function; the touch control MCU chip also controls the LED driver chip via a simulated IIC serial port to control the scanning time of the LED beads in the LED light array circuit; the LED driver chip drives the LED beads in the LED light array circuit to turn on or off.

[0018] A touch device, comprising the LED light array system with full-screen touch function described above, wherein the touch device is an electronic cigarette or a mobile phone back cover light panel.

[0019] Implementing one of the above-described technical solutions of this utility model has the following advantages or beneficial effects:

[0020] This utility model has a simple structure. The touch area of ​​the full-screen touch circuit has the same shape as the LED light array circuit and they are overlapped and combined together. It has a low cost and is easy to set up multiple LED lights, touch sensing channels and LED light array circuit layout. At the same time, both the LED light array circuit and the full-screen touch circuit are flexible circuit boards, which can be bent according to the needs of use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is the front view of the first type of full-screen touch circuit in Embodiment 2 of this utility model;

[0023] Figure 2 This is a structural diagram of the first type of LED lamp array circuit in Embodiment 2 of this utility model;

[0024] Figure 3 This is a structural diagram of the first type of full-screen touch circuit in Embodiment 2 of this utility model;

[0025] Figure 4 This is a structural diagram of the first combination of a full-screen touch circuit and an LED light array circuit in Embodiment 2 of this utility model;

[0026] Figure 5This is the front view of the second type of full-screen touch circuit in Embodiment 2 of this utility model;

[0027] Figure 6 This is a structural diagram of the second type of LED lamp array circuit in Embodiment 2 of this utility model;

[0028] Figure 7 This is a structural diagram of the second type of full-screen touch circuit in Embodiment 2 of this utility model;

[0029] Figure 8 This is a structural diagram of the second combination of full-screen touch circuit and LED light array circuit in Embodiment 2 of this utility model;

[0030] Figure 9 This is a front view of the full-screen touch circuit according to Embodiment 3 of this utility model;

[0031] Figure 10 This is the back view of the full-screen touch circuit of Embodiment 3 of this utility model;

[0032] Figure 11 This is a structural diagram of the LED lamp array circuit of Embodiment 3 of this utility model;

[0033] Figure 12 This is a structural diagram of the full-screen touch circuit of Embodiment 3 of this utility model;

[0034] Figure 13 This is a structural diagram of the combination of the full-screen touch circuit and the LED light array circuit in Embodiment 3 of this utility model;

[0035] Figure 14 This is the front mutual capacitance pattern of the full-screen touch circuit in Embodiment 4 of this utility model;

[0036] Figure 15 This is a structural diagram of the LED lamp array circuit of Embodiment 4 of this utility model;

[0037] Figure 16 This is a structural diagram of the full-screen touch circuit of Embodiment 4 of this utility model;

[0038] Figure 17 This is a structural diagram of the combination of the full-screen touch circuit and the LED light array circuit in Embodiment 4 of this utility model;

[0039] Figure 18 This is the first layer front pattern of the full-screen touch circuit in Embodiment 5 of this utility model;

[0040] Figure 19 This is the second layer of co-drive isolation pattern of the full-screen touch circuit in Embodiment 5 of this utility model;

[0041] Figure 20 This is a structural diagram of the LED lamp array circuit of Embodiment 5 of this utility model;

[0042] Figure 21 This is a circuit connection diagram of Embodiment Six of this utility model. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, various exemplary embodiments described below will be referenced to the accompanying drawings, which form part of the exemplary embodiments, illustrating various exemplary embodiments that may be adopted to implement this utility model. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. It should be understood that they are merely examples of processes, methods, and apparatuses consistent with some aspects of this utility model disclosed as detailed in the appended claims, and other embodiments may be used, or structural and functional modifications may be made to the embodiments listed herein without departing from the scope and spirit of this utility model.

[0044] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the referred element must have a specific orientation, or be constructed and operated in a specific orientation. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. The term "multiple" means two or more. The terms "connected" and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, communication connections, direct connections, indirect connections through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more of the related listed items. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] To illustrate the technical solution described in this utility model, specific embodiments are described below, showing only the parts related to the embodiments of this utility model.

[0046] Example 1:

[0047] This invention provides an LED light array with full-screen touch functionality, comprising an LED light array circuit and a full-screen touch circuit. Both the LED light array circuit and the full-screen touch circuit are flexible circuit boards, facilitating bending. Each circuit has multiple functional pins (e.g., VCC, SDA1, SCL1, SDA2, SCL2, GND pins) led out via metal wires to ensure the LED beads of the LED light array circuit are turned on and off, and the touch function of the full-screen touch circuit is enabled. The touch area of ​​the full-screen touch circuit has the same shape as the LED light array circuit, facilitating overlapping and combination. The touch area of ​​the full-screen touch circuit and the LED light array circuit can be overlapped and fixed using methods such as adhesive bonding or snap-fit ​​connection. The full-screen touch circuit has a hollow structure at the LED bead positions of the LED light array circuit, allowing the light from the LED light array circuit to shine through, thus ensuring the touch display effect of the LED light array. This embodiment has a simple structure. The touch area of ​​the full-screen touch circuit has the same shape as the LED light array circuit and they are overlapped and combined together. The cost is low and it is easy to set up multiple LED lights, touch sensing channels and LED light array circuit layout. At the same time, both the LED light array circuit and the full-screen touch circuit are flexible circuit boards, which can be bent according to the needs of use.

[0048] Example 2:

[0049] In this embodiment, as Figures 1-8 As shown, the touch area of ​​the full-screen touch circuit is divided into multiple touch sub-regions, which include arc-shaped structures and multiple rectangular structures. Figure 1-4 It is an arc-shaped structure. Figure 5-8 The circuit uses two arc-shaped structures to create more complex touch areas. Therefore, by combining arc and rectangular structures, various complex-shaped touch areas can be obtained for different scenarios. Each touch sub-area has a touch sensing channel with a square or zigzag cross pattern. In the full-screen touch circuit diagram, a cutout structure is provided at the LED positions, which also includes the front channel pattern of the full-screen touch circuit. This allows for fewer LEDs to be lit using a forward / reverse push method. The forward / reverse push method uses positive and negative pulses to achieve different states of the LEDs, thus controlling more LEDs without increasing the number of channels. Therefore, when the number of LED traces is small, only the front layer pattern of the full-screen touch circuit needs to be used.

[0050] Example 3:

[0051] In this embodiment, as Figures 9-13As shown, the touch area of ​​the full-screen touch circuit is divided into multiple touch sub-areas, each with a touch sensing channel on both its front and back sides. The touch sensing channels have square or zigzag cross-shaped patterns that completely overlap on both sides of the touch sub-area. The back channel pattern of the full-screen touch circuit is the opposite side of the front channel pattern and completely overlaps with it. The back channel pattern serves as a co-drive scanning channel, where all co-drive channels emit the same scanning signal as the touch sensing channels—that is, the signal frequency, voltage amplitude, and phase are exactly the same. Because the front and back sensing pads are of equal size and perfectly symmetrical, the coupling capacitance between the touch sensing channels and the co-drive channels is very small, not affecting the touch sensitivity. Furthermore, the co-drive scanning channel isolates the touch sensing channels from the LED array circuit wiring, preventing mutual interference. The full-screen touch circuit diagram also shows a cutout structure at the LED positions, including both the front and back channel patterns.

[0052] Example 4:

[0053] In this embodiment, as Figures 14-17 As shown, the touch area of ​​the full-screen touch circuit is divided into several equal parts in both the length and width directions, resulting in multiple touch sub-areas. Each touch sub-area is equipped with a touch sensing channel, which is a diamond-shaped or stripe pattern (or a honeycomb or herringbone pattern). Multi-touch is based on a mutual capacitance mode, which offers stronger interference resistance. However, multi-touch can also be achieved with a single-layer ITO, narrow bezel, and few pins through shared / time-division / variable channel designs. In the front mutual capacitance pattern, the vertical direction represents the RX sensing channel, and the horizontal direction represents the TX sensing channel. The TX channels are connected via through-holes in the bottom layer. The mutual capacitance channel offers better anti-interference capabilities and supports multi-touch. The full-screen touch circuit diagram also includes a cutout structure at the LED positions, which also represents the front channel pattern of the full-screen touch circuit.

[0054] Example 5:

[0055] In this embodiment, as Figures 18-20 As shown, the LED light array circuit and the full-screen touch circuit are set on the same flexible circuit board, resulting in a fused circuit board. The fused circuit board has a four-layer structure. The top layer sets the LED light array circuit and the wiring pattern of the full-screen touch circuit. The second layer adjacent to the top layer sets the co-drive isolation pattern and touch channel connection (which can achieve the function of isolation and prevention of mutual interference). The third layer adjacent to the second layer and the bottom layer are for the LED light array circuit wiring. The advantage is particularly prominent when there are many LEDs, which is more conducive to the layout of touch channel and LED light array circuit.

[0056] Example 6:

[0057] like Figure 21 As shown, an LED light array system with full-screen touch functionality includes an LED light array with full-screen touch functionality according to Embodiments 1 to 5, as well as a main control chip, a touch control MCU chip, and an LED driver chip. The main control chip is connected to the touch control MCU chip via an IIC serial port. The touch control MCU chip is a control chip with built-in touch functionality and is connected to the full-screen touch circuit. Specifically, it is electrically connected to the functional pins of the full-screen touch circuit to control the full-screen touch function. The touch control MCU chip also controls the LED driver chip via a simulated IIC serial port to control the scanning time of the LED beads in the LED light array circuit. The LED driver chip is electrically connected to the functional pins of the LED light array, thereby driving the LED beads in the LED light array circuit to turn on or off. By controlling the main control chip, the touch control MCU chip, and the LED driver chip, the LED light array is made touch-enabled. At the same time, the touch area of ​​the full-screen touch circuit is consistent with the shape of the LED light array circuit and is overlapped together, which is low cost and easy to set up multiple LED lights, touch sensing channels and LED light array circuit layout. In addition, both the LED light array circuit and the full-screen touch circuit are flexible circuit boards, which can be bent according to the needs of use.

[0058] Example 7:

[0059] A touch device is provided, comprising an LED light array system with full-screen touch function as described in Embodiment Six. The touch device is an electronic cigarette or a mobile phone back cover light panel, which can be bent at will during use. The electronic cigarette can achieve more complex display touch functions, and the mobile phone back cover light panel can achieve better touch interactive lighting effects, with lower cost and a better user experience.

[0060] The embodiment is merely a special case and does not indicate that this utility model is implemented in such a way.

[0061] The above description is merely a preferred embodiment of the present utility model. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present utility model. Furthermore, under the teachings of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present utility model.

Claims

1. An LED light array with full-screen touch functionality, characterized in that, It includes an LED light array circuit and a full-screen touch circuit, both of which are flexible circuit boards. The touch area of ​​the full-screen touch circuit has the same shape as the LED light array circuit and is overlapped together. The full-screen touch circuit has a hollow structure at the position of the LED light array circuit, so that the light of the LED light array circuit can be transmitted through the hollow structure.

2. The LED light array with full-screen touch function according to claim 1, characterized in that, The touch area of ​​the full-screen touch circuit is divided into multiple touch sub-areas, and each touch sub-area is provided with a touch sensing channel. The pattern shape of the touch sensing channel is square or zigzag cross.

3. An LED light array with full-screen touch function according to claim 1, characterized in that, The touch area of ​​the full-screen touch circuit is divided into multiple touch sub-areas, and each touch sub-area has a touch sensing channel on its front and back sides.

4. An LED light array with full-screen touch function according to claim 3, characterized in that, The pattern shape of the touch sensing channel is square or zigzag cross, and it completely overlaps on the front and back of the touch sub-area.

5. An LED light array with full-screen touch function according to claim 1, characterized in that, The touch area of ​​the full-screen touch circuit is divided into several equal parts in both the length and width directions, resulting in multiple touch sub-areas.

6. An LED light array with full-screen touch function according to claim 5, characterized in that, Each of the aforementioned touch sub-regions is provided with a touch sensing channel, which is a diamond pattern or a strip pattern, and performs multi-touch based on a mutual capacitance mode.

7. An LED light array with full-screen touch function according to claim 1, characterized in that, The LED light array circuit and the full-screen touch circuit are set on the same flexible circuit board to obtain a fused circuit board.

8. An LED light array with full-screen touch function according to claim 7, characterized in that, The fusion circuit board has a four-layer structure. The top layer is set with the LED array of the LED array circuit and the wiring pattern of the full-screen touch circuit. The second layer adjacent to the top layer is set with the same-drive isolation pattern and touch channel connection. The third layer and the bottom layer adjacent to the second layer are used for the LED array circuit wiring.

9. An LED light array system with full-screen touch functionality, characterized in that, The invention includes an LED light array with full-screen touch functionality as described in any one of claims 1-8, and a main control chip, a touch control MCU chip, and an LED driver chip; the main control chip is connected to the touch control MCU chip via an IIC serial port; the touch control MCU chip is a control chip with built-in touch functionality, and is connected to the full-screen touch circuit for controlling the full-screen touch function; the touch control MCU chip also controls the LED driver chip via a simulated IIC serial port to control the scanning time of the LED beads in the LED light array circuit; the LED driver chip drives the LED beads in the LED light array circuit to turn on or off.

10. A touch device, characterized in that, The touch device includes an LED light array system with full-screen touch function as described in claim 9, wherein the touch device is an electronic cigarette or a mobile phone back cover light panel.

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