A self-capacitance transparent touch light based on metal mesh copper

Abstract

The utility model relates to touch lamp technical field, concretely is a kind of self-capacitance transparent touch lamp based on metal grid copper, comprising: transparent flexible substrate, the transparent flexible substrate adopts the polyimide of light transmittance more than 90%, polyethylene terephthalate or flexible glass material, thickness is 50-200 μm;Metal grid copper conductive layer, set on the transparent flexible substrate upper surface, the metal grid copper conductive layer includes transparent conductive electrode for conducting electricity and self-capacitance electrode for detecting human touch;Light emitting unit, the light emitting unit is LED lamp, the LED lamp is driven in parallel or series by the metal grid copper conductive layer, flexible bendable: transparent flexible substrate can withstand the repeated bending of radius less than 5mm, suitable for curved surface installation, applicability is enhanced;Touch integration: metal grid copper conductive layer assumes the function of conducting electricity and capacitance sensing simultaneously, reduces the number of components, reduces manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of touch lamp technology, specifically a self-capacitance transparent touch lamp based on a metal mesh copper. Background Technology

[0002] In the fields of smart homes and commercial displays, the demand for transparent interactive and flexible lighting technologies is growing. While existing copper mesh lighting can achieve visual invisibility through ultra-fine lines (less than 10μm) and boasts a light transmittance of >85%, making it widely used in touchscreens, its application in lighting systems remains limited to a single conductive function. Traditional mutual capacitance touch control relies on double-layer electrodes, resulting in high costs and complex manufacturing processes. Furthermore, the traditional rigid form of lighting fixtures restricts its application in innovative scenarios such as curved surfaces and wearable devices, leading to low applicability. Therefore, this invention proposes a self-capacitance transparent touch lamp based on copper mesh lighting to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a self-capacitance transparent touch lamp based on a metal mesh copper to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-capacitance transparent touch lamp based on a metal mesh copper, comprising:

[0005] A transparent flexible substrate, wherein the transparent flexible substrate is made of polyimide, polyethylene terephthalate or flexible glass material with a light transmittance greater than 90% and a thickness of 50-200μm;

[0006] A metal mesh copper conductive layer is disposed on the upper surface of the transparent flexible substrate. The metal mesh copper conductive layer includes a transparent conductive electrode for conducting electricity and a self-capacitance electrode for detecting human touch.

[0007] The light-emitting unit is an LED lamp, and the LED lamp is driven in parallel or series through the copper conductive layer of the metal mesh.

[0008] A control board module, which integrates a capacitive sensing chip, a microprocessor and a PWM dimming circuit, and is connected to the self-capacitive electrode through an FPC flexible circuit.

[0009] The power input module is used to provide a stable DC signal to the control board module and the light-emitting unit.

[0010] Preferably, the linewidth of the copper conductive layer of the metal mesh is less than 10 μm and the light transmittance is greater than 85%.

[0011] Preferably, the transparent flexible substrate can withstand repeated bending with a radius of less than 5 mm.

[0012] Preferably, the control board module is welded or press-fitted to the self-capacitive electrode via an FPC flexible circuit.

[0013] Preferably, the LED light is attached to the copper conductive layer of the metal mesh by welding or conductive adhesive.

[0014] Preferably, the power input module is connected to the control board module via a DC interface or cable.

[0015] Preferably, the PWM dimming circuit of the control board module adjusts the driving current of the LED lamp through the copper conductive layer of the metal mesh to realize the functions of switching the lamp on and off and continuous dimming.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] Flexible and bendable: The transparent flexible substrate can withstand repeated bending with a radius of less than 5mm, making it suitable for curved surface installation and enhancing its applicability; Integrated touch control: The metal mesh copper conductive layer simultaneously undertakes conductive and capacitive sensing functions, reducing the number of components and lowering manufacturing costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 A structural block diagram is added to this utility model.

[0020] In the diagram: 1. Transparent flexible substrate; 2. Transparent conductive electrode; 3. Self-capacitance electrode; 4. LED light; 5. Control board module; 6. Power input module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 2 This utility model provides a technical solution: a self-capacitance transparent touch lamp based on metal mesh copper, comprising: a transparent flexible substrate 1, wherein the transparent flexible substrate 1 is made of polyimide, polyethylene terephthalate or flexible glass material with a light transmittance greater than 90%, and has a thickness of 50-200μm, providing mechanical support and optical transparency;

[0023] A metallic mesh copper conductive layer is disposed on the upper surface of a transparent flexible substrate 1. The metallic mesh copper conductive layer includes a transparent conductive electrode 2 for conducting electricity and a self-capacitive electrode 3 for detecting human touch. The metallic mesh copper structure is fabricated on the transparent substrate using micro-nano fabrication techniques, including exposure, development, etching, and demolding processes, to form the transparent conductive electrode 2. The design of the metallic mesh copper conductive layer should possess good conductivity and light transmittance; its linewidth, spacing, and thickness can be optimized according to actual needs.

[0024] The light-emitting unit is an LED lamp 4, which is driven in parallel or series through a metal mesh copper conductive layer;

[0025] Control board module 5 integrates a capacitive sensing chip, a microprocessor, and a PWM dimming circuit, and is connected to the self-capacitive electrode 3 through an FPC flexible circuit.

[0026] The power input module 6 is used to provide a stable DC signal to the control board module 5 and the light-emitting unit. The voltage can be adjusted according to the type of LED 4.

[0027] Flexible and bendable: The transparent flexible substrate 1 can withstand repeated bending with a radius of less than 5mm, making it suitable for curved surface installation and enhancing its applicability; Integrated touch control: The metal mesh copper conductive layer simultaneously undertakes the functions of conductivity and capacitance sensing, reducing the number of components and lowering manufacturing costs.

[0028] The linewidth of the copper conductive layer of the metal mesh is less than 10μm, the light transmittance is greater than 85%, and the transparent flexible substrate 1 can withstand repeated bending with a radius of less than 5mm.

[0029] The control board module 5 is welded or pressed to the self-capacitor electrode 3 via an FPC flexible circuit. The control board module 5 is a mature existing technology. The LED light 4 is attached to the copper conductive layer of the metal mesh by welding or conductive adhesive.

[0030] The power input module 6 is connected to the control board module 5 via a DC interface or cable. The PWM dimming circuit of the control board module 5 adjusts the driving current of the LED lamp 4 through the copper conductive layer of the metal mesh to realize the functions of switching the lamp on and off and continuous dimming.

[0031] When a human finger touches the lamp surface, the self-capacitive electrode 3 forms a parasitic capacitance with the human body, causing a change in capacitance value. The control board module 5 detects this change, determines the touch position by comparing the capacitance change rate of each electrode, and identifies the touch action type, such as a short press or a long press. The microprocessor outputs a PWM signal according to the preset logic, which adjusts the driving current of the LED lamp 4 through the copper conductive layer of the metal mesh to realize the functions of switching the lamp on and off and continuous dimming.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-capacitance transparent touch lamp based on a metal mesh copper grid, characterized in that, include: A transparent flexible substrate (1) is made of polyimide, polyethylene terephthalate or flexible glass material with a light transmittance of greater than 90% and a thickness of 50-200 μm. A metal mesh copper conductive layer is disposed on the upper surface of the transparent flexible substrate (1). The metal mesh copper conductive layer includes a transparent conductive electrode (2) for conducting electricity and a self-capacitance electrode (3) for detecting human touch. The light-emitting unit is an LED lamp (4), and the LED lamp (4) is driven in parallel or in series through the copper conductive layer of the metal mesh; The control board module (5) integrates a capacitance sensing chip, a microprocessor and a PWM dimming circuit, and is connected to the self-capacitance electrode (3) through an FPC flexible circuit. The power input module (6) is used to provide a stable DC signal to the control board module (5) and the light-emitting unit.

2. The self-capacitance transparent touch lamp based on a metal mesh copper according to claim 1, characterized in that: The linewidth of the copper conductive layer of the metal mesh is less than 10 μm, and the light transmittance is greater than 85%.

3. A self-capacitance transparent touch lamp based on a metal mesh copper according to claim 2, characterized in that: The transparent flexible substrate (1) can withstand repeated bending with a radius of less than 5 mm.

4. A self-capacitance transparent touch lamp based on a metal mesh copper according to claim 3, characterized in that: The control board module (5) is welded or pressed to the self-capacitance electrode (3) via an FPC flexible circuit.

5. A self-capacitance transparent touch lamp based on a metal mesh copper according to claim 4, characterized in that: The LED light (4) is attached to the copper conductive layer of the metal mesh by welding or conductive adhesive.

6. A self-capacitance transparent touch lamp based on a metal mesh copper according to claim 1, characterized in that: The power input module (6) is connected to the control board module (5) via a DC interface or cable.

7. A self-capacitance transparent touch lamp based on a metal mesh copper according to claim 6, characterized in that: The PWM dimming circuit of the control board module (5) adjusts the driving current of the LED lamp (4) through the copper conductive layer of the metal mesh to realize the functions of switching the lamp on and off and continuous dimming.

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