Active shutter opening and closing 3D glasses

Abstract

The invention provides active shutter opening and closing 3D glasses, and relates to the technical field of 3D glasses, the active shutter opening and closing 3D glasses comprise a glasses frame, glasses legs, liquid crystal lenses, a signal receiving window, a battery compartment, a glasses leg magnetic control switch and ear hangers, the liquid crystal lenses are arranged in the glasses frame, the glasses legs are arranged on the two sides of the glasses frame, the ear hangers are arranged at the tail ends of the glasses legs, and the signal receiving window is arranged in the glasses frame. The signal receiving window is arranged on the front side of the middle of the glasses frame, the battery bin is arranged on the back face of the signal receiving window, the glasses leg magnetic control switch is arranged on the inner side of the glasses leg on the right side, a control circuit is arranged in the glasses frame, and the signal receiving window, the glasses leg magnetic control switch and the liquid crystal lenses are connected with the control circuit. According to the invention, automatic on-off of a power supply is realized through the temple magnetic control switch, so that real zero-current dormancy is achieved; and the hidden magnetic control design avoids oxidation and poor contact, the switch is attractive and high in reliability, and the problems of misunderstanding of use and battery loss of a traditional switch are thoroughly solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of 3D glasses, in particular to an active shutter 3D glasses. BACKGROUND

[0002] The power management strategy of the existing active 3D glasses in the non-working state mainly depends on the physical switch or the low-power sleep mode, and both of the two modes have obvious defects. Although the physical switch can completely cut off the power, it is difficult to balance the aesthetics and practicability in the design: if the switch is designed to be eye-catching, it will destroy the overall beauty of the glasses; if it is designed to be hidden, it is easy to cause the user to have a misunderstanding due to the difficulty in finding or forgetting to operate, and cannot achieve the purpose of saving power. While the mode of low-power sleep combined with infrared signal awakening is convenient for user experience, it cannot achieve true zero power consumption. In this mode, in order to be awakened at any time, the infrared receiving circuit must be intermittently powered to detect the signal, which causes the glasses to still consume the battery power when stored for a long time, causing the battery to be quickly consumed, and the user needs to frequently replace the battery, increasing the use cost and maintenance burden. Therefore, the existing technology cannot achieve complete and efficient power management to maximize the battery life while ensuring aesthetics and convenience. Therefore, it is necessary to design an active shutter 3D glasses. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide an active shutter 3D glasses.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following solutions: The present application provides an active shutter 3D glasses, comprising: a frame, a temple, a liquid crystal lens, a signal receiving window, a battery compartment, a temple magnetic control switch and an ear hook, the inside of the frame is provided with the liquid crystal lens, both sides of the frame are provided with the temple, the end of the temple is provided with the ear hook, the front side of the middle part of the frame is provided with the signal receiving window, the back of the signal receiving window is provided with the battery compartment, the inside of the right temple is provided with the temple magnetic control switch, the inside of the frame is provided with a control circuit, and the signal receiving window, the temple magnetic control switch and the liquid crystal lens are connected with the control circuit.

[0005] Preferably, the control circuit comprises a single-chip microcomputer minimum system, an infrared receiving circuit, a liquid crystal driving circuit and a power supply circuit, a television emits infrared rays through a synchronous signal emitter, the infrared receiving circuit receives the emitted infrared rays, the infrared receiving circuit is connected with the single-chip microcomputer minimum system, the single-chip microcomputer minimum system is connected with the liquid crystal driving circuit, the liquid crystal driving circuit is connected with the liquid crystal lens, the temple magnetic control switch and the battery compartment are connected with the power supply circuit, and the power supply circuit is controlled to be turned on or off based on the state of the temple magnetic control switch.

[0006] Preferably, the single-chip microcomputer minimum system comprises a single-chip microcomputer, a resistor R11, a capacitor C6, a capacitor C7 and a component CN1, the single-chip microcomputer is a master control chip, the resistor R11 is an upper pull resistor of a downloader interface, used for maintaining the level of MCLR, the capacitor C6 and the capacitor C7 are connected across the power supply of the single-chip microcomputer, used as a voltage stabilizing filter device to maintain stable power supply, and the component CN1 is used as a download interface of an external downloader.

[0007] Preferably, the infrared receiving circuit comprises a component U2, an infrared receiving sensor IR1, a signal amplification circuit, a high-pass filter, a comparison circuit, a resistor R3, a resistor R2, a resistor R1, a capacitor C4 and a capacitor C5, the single-chip microcomputer outputs a high level to supply power to the infrared receiving circuit, the infrared receiving sensor IR1 receives an infrared signal, the current signal is converted into a voltage signal through the resistor R3, the resistor R2 and the resistor R1, the converted signal is input into the + input port of the operational amplifier B inside the component U2, is amplified through the signal amplification circuit, the signal amplifier is composed of the operational amplifier B, the resistor R4 and the resistor R5, the amplified signal is filtered through the high-pass filter to remove the direct current component and the low frequency component of the signal, the high-pass filter is composed of the resistor R6 and the capacitor C3, and then the signal is input into the - input port of the operational amplifier A inside the component U2, and is filtered through the comparison circuit, the comparison circuit is composed of the resistor R7, the resistor R8, the resistor R9, the resistor R10 and D1, and the signals of the reference voltage and the filtered noise are input into the single-chip microcomputer based on the voltage stabilizing filtering of the capacitor C4 and the capacitor C15 as reference voltage.

[0008] Preferably, the liquid crystal driving circuit comprises a component U4, the component U4 is connected to the single-chip microcomputer, the single-chip microcomputer controls the working or hibernation of the internal boost circuit of the component U4 by pulling up and pulling down the level, the component U4 is connected to a capacitor C4, the capacitor C4 is a voltage stabilizing circuit of the component U4, the component U4 is connected to a boost circuit for providing a liquid crystal driving voltage, the boost circuit is composed of a capacitor C11, an inductor L1, a resistor R12, a resistor R14, a capacitor C10, a capacitor C8 and a PWM controller of the component U4, and the component U4 is connected to the glasses lenses on both sides of the frame.

[0009] Preferably, the power supply circuit comprises a component U8, a component H1 and a component H2, the component U8 is a mounting interface of a battery compartment, the negative electrode of the battery compartment is connected to the negative electrode of the control circuit through the component U8, the positive electrode of the battery compartment is connected to the component H1 through the component U8, the component H1 is connected to a magnetic control switch of the temple, the magnetic control switch of the temple is connected to the component H2, and the component H2 is connected to the positive electrode of the control circuit.

[0010] Preferably, the temple magnetic switch includes a magnet and a sensor. The component H1 is connected to the sensor, the sensor is connected to the component H2, and the magnet is disposed at the front end of the temple. When the temple is in the closed state, the temple magnetic switch is disconnected, and when the temple is in the open state, the temple magnetic switch is automatically connected.

[0011] Preferably, the battery compartment is a button battery.

[0012] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects: This invention provides an active shutter 3D glasses, comprising a frame, temples, liquid crystal lenses, a signal receiving window, a battery compartment, a magnetic switch on the temples, and ear hooks. The liquid crystal lenses are disposed inside the frame, the temples are disposed on both sides of the frame, and the ear hooks are disposed at the ends of the temples. The signal receiving window is disposed on the front side of the middle of the frame, the battery compartment is disposed on the back of the signal receiving window, and the magnetic switch on the temple is disposed on the inner side of the right temple. A control circuit is disposed inside the frame, and the signal receiving window, the magnetic switch on the temple, and the liquid crystal lenses are connected to the control circuit. Compared with the prior art, this invention brings several significant advantages, including: 1. Achieves intelligent zero-current sleep mode and seamless power-on: This invention creatively utilizes the user's natural habit of unfolding the temples before using glasses, controlling the main power supply of the circuit through a magnetic switch on the temples. When the user unfolds the temples, the power is completely cut off, and the system enters a true zero-current sleep state, completely eliminating any standby power consumption; when the user unfolds the temples for use, the power is automatically turned on, achieving seamless power-on with almost zero contact resistance. This design fundamentally solves the problem of battery wear during long-term storage, greatly extending battery life.

[0013] 2. Enhanced product aesthetics and reliability: The magnetic switch features a concealed design, eliminating the need for a visible switch hole on the lens, resulting in a cleaner and more aesthetically pleasing appearance and eliminating common user misunderstandings about switch operation. Furthermore, as a non-contact switch, the magnetic switch's internal contacts can be sealed, effectively preventing poor contact issues caused by contact oxidation, vibration, or contamination common in traditional mechanical switches, significantly improving product reliability and lifespan. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the active shutter 3D glasses structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a single-chip microcomputer minimum system; Figure 3 This is a schematic diagram of an infrared receiving circuit; Figure 4 This is a schematic diagram of the infrared receiving circuit's receiving process. Figure 5 This is a schematic diagram of a liquid crystal driving circuit. Figure 6 This is a schematic diagram of the power supply circuit; Figure 7 This is a diagram showing the magnet installation location; Figure 8 This is a schematic diagram showing the magnet's installation position in the closed state; Figure 9 This is a schematic diagram showing the magnet's installation position when the device is in the open state.

[0016] Reference numerals: 1. Frame; 2. Temple; 3. Liquid crystal lens; 4. Signal receiving window; 5. Battery compartment; 6. Ear hook; 7. Magnetic switch on temple; 8. Magnet. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The purpose of this invention is to provide an active shutter 3D glasses system that automatically switches power on and off via a magnetic switch on the temple, achieving true zero-current sleep mode and significantly extending battery life. The concealed magnetic switch design avoids oxidation and poor contact, combining aesthetics with high reliability, and completely solves the problems of misuse and battery drain associated with traditional switches.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1As shown, the present invention provides an active shutter 3D glasses, including: a frame 1, temples 2, liquid crystal lenses 3, a signal receiving window 4, a battery compartment 5, a temple magnetic switch 7, and ear hooks 6. The liquid crystal lenses 3 are disposed inside the frame 1, the temples 2 are disposed on both sides of the frame 1, and the ear hooks 6 are disposed at the ends of the temples 2. The signal receiving window 4 is disposed on the front side of the middle part of the frame 1, the battery compartment 5 is disposed on the back of the signal receiving window 4, and the temple magnetic switch 7 is disposed on the inner side of the right temple 2. A control circuit is disposed inside the frame 1, and the signal receiving window 4, the temple magnetic switch 7, and the liquid crystal lenses 3 are connected to the control circuit.

[0021] The control circuit includes a microcontroller minimum system, an infrared receiving circuit, a liquid crystal driving circuit, and a power supply circuit. The television emits infrared rays through a synchronization signal transmitter. The infrared receiving circuit receives the emitted infrared rays and is connected to the microcontroller minimum system. The microcontroller minimum system is connected to the liquid crystal driving circuit, which is connected to the liquid crystal lens 3. The temple magnetic control switch 7 and the battery compartment 5 are connected to the power supply circuit. The power supply circuit is turned on and off based on the state of the temple magnetic control switch 7.

[0022] like Figure 2 As shown, the minimum system of the microcontroller includes a microcontroller, resistor R11, capacitor C6, capacitor C7, and component CN1. The microcontroller is the main control chip, which can programmably control the operation of various circuit modules. Resistor R11 is a pull-up resistor for the programmer interface, used to maintain the level of MCLR. Capacitors C6 and C7 are connected to the two ends of the power supply of the microcontroller and are used as voltage regulators to maintain power stability. Component CN1, which connects the microcontroller's MCLR, CSPDAT, and CSPCLK, is used as the download interface of the external programmer.

[0023] like Figure 3As shown, the infrared receiving circuit includes component U2, infrared receiving sensor IR1, signal amplification circuit, high-pass filter, comparator circuit, resistors R3, R2, and R1, capacitors C4 and C5. The microcontroller outputs a high level through RA5 (labeled "VOP" in the diagram) to power the infrared receiving circuit. Capacitors C1 and C2 act as voltage regulators to maintain power stability. Infrared receiving sensor IR1 receives infrared signals; the stronger the infrared signal, the greater the current flowing through IR1. Resistors R3, R2, and R1 convert the current signal into a voltage signal. D2 acts as a clamping diode to prevent signal loss due to excessively strong infrared signals. The converted signal is input to the operational amplifier inside component U2. The positive input of amplifier B is amplified by a signal amplification circuit, increasing the signal by 5.25 times (R5 / R4+1). The signal amplifier consists of operational amplifier B, resistors R4 and R5. The amplified signal is then filtered out by a high-pass filter, which consists of resistor R6 and capacitor C3. The signal is then input to the negative input of operational amplifier A inside U2, where it is filtered for noise by a comparator circuit. The comparator circuit consists of resistors R7, R8, R9, R10 and capacitor D1, and uses capacitors C4 and C15 as a reference voltage for voltage regulation and filtering. The reference voltage and the noise-filtered signal are then input to the comparator inside the microcontroller for a second comparison.

[0024] like Figure 4 As shown, the infrared transmitter emits two or three 20µs high-level infrared pulses. Two pulses can be designated as the left eye signal and three as the right eye signal, or vice versa. When the microcontroller processes the signal, it turns on the infrared receiving circuit, waits for the infrared signal input, and counts the pulses. If the number of pulses is two or three within the specified time, the internal timer can be calibrated based on the signal, thus switching the specified lens on and off within the specified time. If the number of pulses is incorrect, the signal is discarded. If there are multiple errors or no signal is received for a long time, the microcontroller and LCD driver circuit will enter sleep mode, simultaneously turning off the infrared receiving circuit. Then, the infrared receiving circuit will be turned on every 3 seconds to check for a signal and determine if the system needs to be reawakened.

[0025] like Figure 5 As shown, all lines with the same name are physically connected together. Component U4 consists of a boost circuit and four H-bridges. The microcontroller RA0 interface, i.e., LCDEN, controls the operation or sleep mode of component U4 by pulling the level high or low. Resistor R17 provides the initial sleep state for component U4 before the microcontroller starts working. The microcontroller RA1 interface, i.e., BOOSTEN, controls the operation or sleep mode of the internal boost circuit of component U4 by pulling the level high or low. Capacitor C9 is the voltage regulator circuit for component U4. The boost circuit consists of an internal PWM controller in component U4 and external capacitors C11, L1, R12, R14, C10, and C8. Capacitor C11 and inductor L1 are boost energy storage components, capacitor C8 is an output voltage regulator, and resistors R12 and R14 are boost feedback components (output voltage = ...). Capacitor C10 is a feedback filter element; The liquid crystal driving voltage is provided by the aforementioned boost circuit. Components U4 (S0 and S1) are connected to the microcontroller's RC3 and RC4 interfaces via wires RS and RC. The microcontroller controls the A and B interfaces of component U4 by controlling the levels of RC3 and R4. Interfaces A and B are connected to the left lens of the glasses via current-limiting resistor R13 and connector U6. When both RC3 and RC4 are at a low level or high, the voltage Vcs between the collector (C) and source (S) of the lens is 0, and the lens is transparent. When RC3 is high and RC4 is low, Vcs equals 9.43V, and the lens becomes black and opaque. When RC3 is low and RC4 is high, Vcs equals -9.43V, and the lens becomes black and opaque. The control logic for the right lens is the same as for the left lens. R15 is configured for H-bridge current limiting; here, the resistor is set to 1MΩ, meaning no current limiting protection is provided.

[0026] like Figure 6 As shown, the power supply circuit includes component U8, component H1, and component H2. Component U8 is the mounting interface for the battery compartment 5. The negative terminal of the battery compartment 5 is connected to the negative terminal of the control circuit through component U8. The positive terminal of the battery compartment 5 is connected to component H1 through component U8. Component H1 is connected to the magnetic control switch 7 on the temple. The magnetic control switch 7 on the temple is connected to component H2. Component H2 is connected to the positive terminal of the control circuit.

[0027] The magnetic switch 7 on the temple includes a magnet 8 and a sensor. Component H1 is connected to the sensor, and the sensor is connected to component H2, as shown below. Figure 7 As shown, the magnet 8 is disposed at the front end of the temple 2, as... Figure 8 As shown, the temple 2 is in the closed state, as... Figure 9 As shown, when the temple magnetic switch 7 is off, the temple 2 is in the open state, and the temple magnetic switch 7 is automatically connected.

[0028] The battery compartment 5 is a button battery.

[0029] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0030] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An active shutter 3D glasses, characterized in that, include: The glasses include a frame, temples, a liquid crystal lens, a signal receiving window, a battery compartment, a magnetic switch on the temples, and ear hooks. The liquid crystal lens is located inside the frame. The temples are located on both sides of the frame, and the ear hooks are located at the ends of the temples. The signal receiving window is located on the front side of the middle of the frame, and the battery compartment is located behind the signal receiving window. The magnetic switch on the temple is located on the inside of the right temple. A control circuit is located inside the frame, and the signal receiving window, the magnetic switch on the temple, and the liquid crystal lens are connected to the control circuit.

2. The active shutter 3D glasses according to claim 1, characterized in that, The control circuit includes a microcontroller minimum system, an infrared receiving circuit, a liquid crystal driving circuit, and a power supply circuit. The television emits infrared rays through a synchronization signal transmitter. The infrared receiving circuit receives the emitted infrared rays and is connected to the microcontroller minimum system. The microcontroller minimum system is connected to the liquid crystal driving circuit, which is connected to the liquid crystal lens. The temple magnetic control switch and the battery compartment are connected to the power supply circuit. The power supply circuit is turned on and off based on the state of the temple magnetic control switch.

3. The active shutter 3D glasses according to claim 2, characterized in that, The minimum system of the microcontroller includes a microcontroller, a resistor R11, a capacitor C6, a capacitor C7, and a component CN1. The microcontroller is the main control chip. The resistor R11 is a pull-up resistor for the programmer interface, used to maintain the MCLR level. The capacitors C6 and C7 are connected to the two ends of the microcontroller's power supply and are used as voltage regulators to maintain power stability. The component CN1 is used as the download interface for an external programmer.

4. The active shutter 3D glasses according to claim 3, characterized in that, The infrared receiving circuit includes component U2, infrared receiving sensor IR1, signal amplification circuit, high-pass filter, comparator circuit, resistors R3, R2, and R1, and capacitors C4 and C5. The microcontroller outputs a high level to power the infrared receiving circuit. Infrared receiving sensor IR1 receives infrared signals and converts the current signal into a voltage signal through resistors R3, R2, and R1. The converted signal is input to the positive input port of operational amplifier B inside component U2 and amplified by the signal amplification circuit, which consists of operational amplifier B, resistors R4 and R5. The amplified signal is then filtered out by a high-pass filter, which consists of resistor R6 and capacitor C3. The signal is then input to the negative input port of operational amplifier A inside U2 and filtered for noise signals by the comparator circuit, which consists of resistors R7, R8, R9, R10, and capacitor D1. Based on capacitors C4 and C15, the signal is regulated and filtered using a reference voltage. The signal with the reference voltage and the noise-filtered signal is then input to the microcontroller.

5. The active shutter 3D glasses according to claim 3, characterized in that, The liquid crystal driving circuit includes component U4, which is connected to the microcontroller. The microcontroller controls the operation or sleep mode of the internal boost circuit of component U4 by pulling high and low levels. Component U4 is connected to capacitor C4, which is the voltage regulator circuit of component U4. Component U4 is also connected to a boost circuit to provide liquid crystal driving voltage. The boost circuit consists of capacitor C11, inductor L1, resistor R12, resistor R14, capacitor C10, capacitor C8, and the PWM controller of component U4. Component U4 is connected to the eyeglass lenses on both sides of the frame.

6. The active shutter 3D glasses according to claim 2, characterized in that, The power supply circuit includes component U8, component H1, and component H2. Component U8 is the mounting interface for the battery compartment. The negative terminal of the battery compartment is connected to the negative terminal of the control circuit through component U8. The positive terminal of the battery compartment is connected to component H1 through component U8. Component H1 is connected to the magnetic control switch of the temple. The magnetic control switch of the temple is connected to component H2. Component H2 is connected to the positive terminal of the control circuit.

7. The active shutter 3D glasses according to claim 6, characterized in that, The temple magnetic switch includes a magnet and a sensor. The component H1 is connected to the sensor, and the sensor is connected to the component H2. The magnet is provided at the front end of the temple. When the temple is closed, the temple magnetic switch is disconnected. When the temple is open, the temple magnetic switch is automatically connected.

8. The active shutter 3D glasses according to claim 7, characterized in that, The battery compartment contains button batteries.

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