Screen brightness control device and docking station

Abstract

The utility model discloses a screen brightness control device and a docking station, the screen brightness control device comprises a USB interface, a data processing module, an HDMI interface and a color value control module, the USB interface receives data signals; the data processing module processes video data signals in the data signals; the HDMI interface outputs a video data signal; and the color value control module outputs a color value control signal to the data processing module, so that the data processing module adjusts the brightness of the display screen according to the color value control signal. Through adjustment of the color value control module, the brightness of the display screen can be controlled in real time, when privacy protection or information leakage is needed, a user only needs to rapidly adjust the brightness of the display screen through the color value control module, and confidential information leakage caused by misoperation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to multimedia technology field especially, relate to a screen brightness control device and expansion dock. BACKGROUND

[0002] In the office scene, especially in the important occasion such as customer communication, meeting demonstration, user often needs to connect notebook computer and external display device through USB HUB, exports video signal to show. However, this also brings a potential hidden danger: when the content shown on the computer screen involves sensitive information or business secrets, these information can be leaked through external display, and there is a security risk. The HUB product in the existing market mainly focuses on the expansion function of interface, such as expanding USB-A, USB-C, RJ45, SD card, TF card and the like, and the ability in the protection of information security is relatively limited.

[0003] The current solution usually relies on the following ways to realize information secrecy: manually pulling off the interface connected with the computer, using shortcut key to cut off display output, or relying on the instruction control of computer end to transmit video signal. These methods have the problems of complicated operation and not enough quick, especially in the scene needing to switch the picture quickly, and it is low in efficiency and easy to cause misoperation. UTILITARY MODEL CONTENT

[0004] The utility model embodiment provides a screen brightness control device and expansion dock to solve the above technical problem.

[0005] The utility model embodiment first aspect provides a display screen brightness control device, and it includes:

[0006] USB interface, it connects data source component to receive data signal;

[0007] Data processing module, it connects the USB interface to process video data signal in the data signal;

[0008] HDMI interface is connected data processing module and display screen respectively to output video data signal;

[0009] Color value control module, it connects the data processing module to output color value control signal to the data processing module, makes the data processing module adjust the brightness of display screen according to color value control signal.

[0010] Optionally, the color value control module comprises a push button switch, a first resistor and a first capacitor, one end of the push button switch is connected with one end of the first resistor and one end of the first capacitor and the color value signal receiving end of the data processing module respectively, the other end of the push button switch is grounded, the other end of the first resistor is connected with the first voltage output end of the data processing module, and the other end of the first capacitor is grounded.

[0011] Optionally, when the push button switch is turned on, the color value control module outputs a first color value control signal to the data processing module, and the data processing module adjusts the RGB color value of the display screen to 0 when receiving the first color value control signal.

[0012] Optionally, the data processing module is an IC chip, and the color value signal receiving end of the IC chip adjusts the RGB color value of the display screen to 0 when receiving the first color value control signal.

[0013] Optionally, the screen brightness control device further comprises a display lamp module, and the control end of the display lamp module is connected with the data processing module, and the data processing module adjusts the light-emitting color of the display lamp according to the color value control signal.

[0014] Optionally, the display lamp module comprises a first switch, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first light-emitting diode, a second light-emitting diode, a third light-emitting diode and a fourth light-emitting diode.

[0015] One end of the second resistor and the control end of the first switch are connected as the control end of the display lamp module, one end of the first switch is connected with one end of the third resistor and one end of the fourth resistor respectively, the other end of the third resistor is connected with the anode of the first light-emitting diode and the cathode of the second light-emitting diode respectively, the other end of the fourth resistor is connected with the anode of the third light-emitting diode and the cathode of the fourth light-emitting diode respectively, one end of the fifth resistor is connected with the cathode of the first light-emitting diode, the anode of the second light-emitting diode, the cathode of the third light-emitting diode and the anode of the fourth light-emitting diode respectively, and the other end of the fifth resistor is connected with a power voltage.

[0016] Optionally, the screen brightness control device further comprises:

[0017] a plurality of data interfaces for outputting a plurality of data signals;

[0018] an integrated control chip connected with the USB interface and the data processing module respectively to divide the data signal into a plurality of data signals and output the data signals to the plurality of data interfaces respectively.

[0019] Optionally, the plurality of data interfaces include at least one of a USB-A interface, a USB-A interface, an SD card interface, and a TF card interface.

[0020] The utility model embodiment second aspect provides a kind of docking station, the docking station includes shell and circuit board, the circuit board is arranged in the shell, the circuit board is equipped with the screen brightness control device of first aspect.

[0021] Optionally, the color value control module includes a push button switch, and the push button switch is disposed on a surface of the shell.

[0022] The technical effect of the utility model embodiment is that by adjusting the color value control module, the brightness of the display screen can be controlled in real time. When privacy needs to be protected or information leakage is avoided, the user only needs to quickly adjust the RGB color value of the display screen through the color value control module to make the screen dark, thereby realizing one-key black screen without complex operation or additional steps. The use of the utility model embodiment avoids the leakage of confidential information caused by misoperation, improves the use convenience and smoothness, and is especially suitable for application scenarios that need to frequently switch and protect sensitive information. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the utility model embodiment, the drawings needed to be used in the description of the utility model embodiment will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0024] Figure 1 is a first structural schematic view of a screen brightness control device provided by the utility model embodiment one;

[0025] Figure 2 is a circuit diagram of a color value control module in a screen brightness control device provided by the utility model embodiment one;

[0026] Figure 3 is a circuit diagram of a data processing module in a screen brightness control device provided by the utility model embodiment one;

[0027] Figure 4 is a second structural schematic view of a screen brightness control device provided by the utility model embodiment one;

[0028] Figure 5 is a circuit diagram of a display lamp module in a screen brightness control device provided by the utility model embodiment one;

[0029] Figure 6is a third structural schematic view of the screen brightness control device provided by the embodiment one of the utility model;

[0030] Figure 7 is the circuit diagram of the integrated control chip in the screen brightness control device provided by the embodiment one of the utility model;

[0031] Figure 8 is a structure view of the docking station provided by the embodiment two of the utility model;

[0032] In the drawing: 101, USB interface;102, data processing module;103, HDMI interface;104, color value control module;105, display lamp module;106, integrated control chip;107, data interface;201, shell;202, button switch. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0034] It should be understood that the utility model can be implemented in different forms, and should not be interpreted as being limited to the embodiments presented here. On the contrary, the presentation of these embodiments will make the disclosure complete and complete, and will fully convey the scope of the utility model to those skilled in the art. In the drawings, in order to be clear, the size and relative size of the layers and regions may be exaggerated throughout the same reference signs represent the same elements.

[0035] It should be understood that when an element or layer is referred to as "on", "adjacent to", "connected to", or "coupled to" another element or layer, it can be directly on, adjacent to, connected or coupled to the other element or layer, or there can be intervening elements or layers. Conversely, when an element is referred to as "directly on", "directly adjacent to", "directly connected to", or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part without departing from the teachings of the utility model.

[0036] For a thorough understanding of the present application, detailed descriptions will be given in the following description with reference to the accompanying drawings, so as to illustrate the technical solutions provided by the present application. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can also have other embodiments.

[0037] Embodiment one

[0038] The present embodiment one provides a display screen brightness control device, as shown in the figure, comprising: Figure 1

[0039] The USB interface 101 is connected with the data source component to receive the data signal;

[0040] The data processing module 102 is connected with the USB interface 101 to process the video data signal in the data signal;

[0041] The HDMI interface 103 is connected with the data processing module 102 and the display screen respectively to output the video data signal;

[0042] The color value control module 104 is connected with the data processing module 102 to output the color value control signal to the data processing module 102, so that the data processing module 102 adjusts the brightness of the display screen according to the color value control signal.

[0043] ​The USB interface 101 is mainly responsible for connecting with data source components (such as notebook computers, mobile phones, tablets, etc.) and receiving data signals from the data source. The USB interface 101 supports connection with different devices and usually supports USB 3.0 or USB-C standards, allowing high-speed data transmission. The data source components transmit data signals, which can be images, videos, or other multimedia data, to the control device through the USB interface 101, and the USB interface 101 ensures stable transmission of the signals to the data processing module 102. The data processing module 102 connects the USB interface 101 and receives and processes video data signals transmitted from the data source. Its main function is to analyze and process video signals to output to the display screen through the HDMI interface 103. The data processing module 102 also adjusts the color and brightness of the video signal according to the control signal from the color value control module 104, thereby achieving brightness control. The received data signal is analyzed and processed, and the processed signal is output to the display screen after appropriate adjustment. At the same time, the data processing module 102 adjusts the RGB value or other image parameters related to brightness according to the instructions of the color value control module 104, affecting the brightness of the display screen. The HDMI interface 103 is used to transmit the processed data signal from the data processing module 102 to the display screen. As a common video and audio transmission standard, the HDMI interface 103 supports high-resolution video output and multi-channel audio output. The HDMI interface 103 is connected to the display screen to ensure that the signal can be transmitted to the screen and displayed. The data processing module 102 outputs the processed video signal to the display screen through the HDMI interface 103 for display. The signal transmission process does not require compression, ensuring that the image quality will not be affected. The color value control module 104 sends color value control signals to the data processing module 102 to adjust the brightness of the video signal. The color value control module 104 can adjust the brightness through user input and other means to adapt to different display requirements. By adjusting the intensity of the RGB color channel, the color value control module 104 can effectively change the brightness performance of the screen to ensure that the display effect meets the current requirements. The color value control module 104 generates control signals according to user instructions and transmits them to the data processing module 102. The data processing module 102 adjusts the color or brightness of the video signal according to the received control signal. The color value control signal usually includes brightness adjustment instructions, such as RGB parameters, etc. According to these parameters, the video output is adjusted to make the brightness of the display screen adapt to user requirements, such as black screen, etc. The color value control module 104 can flexibly control the brightness of the screen by adjusting the RGB color value of the display screen to achieve the effect of completely turning off the display content and avoiding the leakage of sensitive information. When it is necessary to restore normal display, the user can quickly restore the original color display by operating the color value control module again, ensuring that the display content returns to the normal state.

[0044] The technical effect of the technical solution provided by the embodiment one is that the brightness of the display screen can be controlled in real time through the adjustment of the color value control module, when privacy needs to be protected or information leakage needs to be avoided, the user only needs to quickly adjust the brightness of the display screen to be dark through the color value control module, so that the screen is black, without complex operation or additional steps, the screen can be quickly switched to the black screen mode through simple button operation, the leakage of confidential information caused by misoperation is avoided, the use convenience and fluency are improved, and the application scenario that needs to frequently switch and protect sensitive information is especially suitable.

[0045] As an implementation manner, as shown in Figure 2 The color value control module 104 includes a button switch K1, a first resistor R1 and a first capacitor C1, one end of the button switch K1 is connected with one end of the first resistor R1 and one end of the first capacitor C1 and a color value signal receiving end of the data processing module 102 respectively, the other end of the button switch K1 is grounded, the other end of the first resistor R1 is connected with a first voltage output end of the data processing module 102, and the other end of the first capacitor C1 is grounded.

[0046] The main function of the button switch K1 is to manually trigger the change of the color value control signal and control the brightness change of the display screen. By pressing the button switch K1, the signal connected with the data processing module 102 is changed, so that the brightness of the display screen is adjusted. One end of the button switch K1 is connected with the first resistor R1, the first capacitor C1 and the color value signal receiving end of the data processing module 102. When the button switch K1 is pressed, one end of the first capacitor C1 is connected with the ground, and the color value control module 104 outputs a low level. When the button switch K1 is popped up, the data processing module 102 charges the first capacitor C1, and the color value control module 104 outputs a high level. When the data processing module 102 receives the first color value control signal as a high level signal, the RGB color value of the display screen is adjusted to 0, the display content is completely closed, and the leakage of sensitive information is avoided. When it is needed to restore normal display, the user presses the button switch K1 again, the data processing module 102 receives the first color value control signal as a low level signal, and the original color display can be quickly restored, so that the display content is restored to the normal state.

[0047] The technical effect of the embodiment is that the brightness of the display screen can be manually adjusted through the button switch operation, and the display effect can be adjusted according to the user's demand.

[0048] As an implementation manner, when the button switch is turned on, the color value control module 104 outputs the first color value control signal to the data processing module 102, and the data processing module 102 adjusts the RGB color value of the display screen to 0 when receiving the first color value control signal.

[0049] The button switch changes the state of the circuit by manual triggering. When the button switch is on, the color value control module 104 is connected with the data processing module 102, and a signal is generated, so that the color value control module 104 starts to output a control signal. After receiving the on signal of the button switch, the color value control module 104 outputs a first color value control signal. The first color value control signal is usually a control signal (such as a low-level signal) transmitted to the data processing module 102, indicating the data processing module 102 to adjust the display parameters (i.e. brightness or color) of the display screen. After receiving the first color value control signal, the data processing module 102 starts to work according to the instruction of the signal. According to the received signal, the data processing module 102 needs to adjust the RGB color value of the display screen, i.e. the brightness of the red, green and blue channels of the screen. The set operation is to adjust the RGB color value of the display screen to 0. The RGB color value of 0 means that the brightness of the red, green and blue channels of the display screen is adjusted to the minimum value. In fact, it is to set the display screen to black screen, because when all the RGB values are 0, the display screen no longer emits any color light, so it displays black. When the button switch is on, i.e. when the button is pressed, the color value control module 104 outputs a signal to the data processing module 102. The function of the signal is to tell the data processing module 102 to adjust the color value of the display screen. According to the control signal, the data processing module 102 adjusts the RGB color value of the display screen to 0, i.e. sets the brightness of all color channels to 0, so that the screen displays black, achieving the effect of black screen.

[0050] The technical effect of the embodiment is that the user can quickly switch the display screen to black screen by simple button operation, so as to avoid the leakage of private or sensitive information.

[0051] As an embodiment, the data processing module 102 is an IC chip, and the color value signal receiving end of the IC chip adjusts the RGB color value of the display screen to 0 when receiving the first color value control signal.

[0052] The data processing module 102 is an integrated circuit (IC chip) that mainly processes input signals and controls the color values of the display screen. It adjusts the display effect of the display screen according to the received control signals. In this embodiment, the function of the IC chip is to receive signals from the color value control module 104, decode or process the signals, and control the RGB color values of the display screen to achieve brightness or color adjustment. The color value signal receiving end is the interface part of the IC chip that receives control signals. When the button switch is pressed, the button sends a control signal to the receiving end. The signal is usually a voltage signal indicating the request to adjust the brightness of the display screen. When the color value signal receiving end of the data processing module 102 receives the first color value control signal, it will perform a predetermined operation, i.e., adjust the RGB color values of the display screen according to the received signal. RGB color values of 0 mean setting the red (R), green (G), and blue (B) channels of the display screen to the lowest value, i.e., 0. In a display, the higher the value of the RGB three channels, the brighter the color displayed, and the closer to white. When all RGB color values are set to 0, the display screen will no longer display any color light, appearing as black. The IC chip changes the RGB signal level by controlling the backlight or signal input of the display screen. For example, by adjusting the voltage or current in the display driver circuit, the voltage of each color channel is reduced to the lowest. The IC chip can adjust the color output of the display through digital signals such as control PWM waveforms, D / A converters, etc., and set the RGB value of each channel to 0.

[0053] The technical effect of this embodiment is that the color value signal receiving end of the IC chip receives the control signal from the color value control module 104. When the signal is received, the color of the display screen is adjusted to black by adjusting the RGB color value, thereby realizing the function of black screen protection of privacy.

[0054] As an example, as shown in Figure 3 The CS5366 integrated chip supplies power to the chip PD and the signal source notebook computer, mobile phone, and palm game console through the pins DFP_CC1 and DFP_CC2, and outputs video signals through the HDMI interface 103 through the pins HDMI_CK_N, HDMI_CK_P, HDMI_D0_N, HDMI_D0_P, HDMI_D1_N, HDMI_D1_P, HDMI_D2_N, and HDMI_D2_P. When the CS5366 integrated chip receives a low-level signal through the pin PULSE_DETECT_GPIO, it adjusts the RGB value of the output video signal to 0 to make the display screen black.

[0055] As an embodiment, the button switch is used to trigger the action of the system, and the detection of the button state can be realized by the following circuit: when pressed, the button switch is connected to the ground or power supply as an input signal. When the button is pressed, mechanical jitter will occur, so a debouncing circuit is needed to avoid false input. Debouncing can use hardware circuit (such as RC circuit) or software processing. The signal of the button switch can be connected to the GPIO port of the microcontroller (MCU), and when the button switch is pressed, the level of the GPIO changes and is transmitted to the subsequent module. The color value control module is used to generate a signal to control the RGB color value. The following hardware circuit can be used to realize it: the microcontroller (MCU) is programmed, and the microcontroller receives the state signal of the button (such as pressing or releasing), and then controls the RGB color value. The brightness of each color channel is adjusted by the PWM (pulse width modulation) signal. When the RGB color value is 0, the duty cycle of the corresponding PWM signal is 0. If an independent module is used for PWM adjustment (such as TLC5940, PCA9685, etc.), the PWM signal for controlling RGB color can be output. The data processing module is usually a microcontroller or a special logic module, which is used to process the signal from the color value control module and adjust the RGB color value of the display screen. The microcontroller receives the control signal from the color value control module and judges whether to adjust the RGB color value to 0. If necessary, the microcontroller will generate appropriate PWM signals or digital control signals to adjust the brightness of each color channel of the display screen. In the microcontroller, the state of the button press or the target of the color value control (RGB = 0) can be stored and sent to the display driving module. The button switch is closed, generating a low or high level signal, which enters the GPIO port of the microcontroller. The microcontroller detects the button press and outputs the RGB control signal to 0. The microcontroller adjusts the brightness of the RGB color channel by PWM, sets the value of RGB to 0, that is, closes all color channels on the display screen. The display driving circuit receives the PWM signal and closes the brightness of the RGB LED, and the display screen becomes black. The microcontroller (such as STM32, Arduino, etc.) is used to read the button signal and control the RGB color value. The PWM generation circuit, such as TLC5940, PCA9685, etc., is used to generate the RGB control signal. The RGB LED driving circuit uses MOSFET, constant current source, etc. to control the brightness of the RGB LED. Through the above circuit modules, the function of adjusting the RGB color value of the display screen to 0 by the color value control module when the button switch is turned on can be realized.

[0056] As an embodiment, a simple push button switch circuit is used, one end of the push button switch is connected to the positive terminal of the power supply (such as 3.3V or 5V), and the other end is connected to the voltage division circuit, which is connected to VCC through a pull-up resistor and connected to ground. When the push button switch is pressed, the voltage signal is low, and when it is not pressed, it is high. Mechanical jitter elimination is achieved through an RC low-pass filter. The typical values of resistor R and capacitor C are 10kΩ and 10μF, and the specific values can be adjusted as needed. A simple color value control module is built using basic logic gates (such as NAND gates, AND gates, or flip-flops). When the push button switch signal is low, a trigger signal is generated through the logic gate to set the RGB color value to 0. A NAND gate module (such as a 74HC00 series chip) is used, and the push button signal and a fixed reference signal are input to the NAND gate. When the NAND gate output signal is high, the subsequent circuit clears the RGB color value. A latch (such as a D flip-flop or RS flip-flop) is used to store the push button trigger state. The NAND gate output signal is connected to the clock input (CLK) of the D flip-flop. When the push button is pressed, the latch locks the signal and outputs a stable control signal. This control signal is transmitted to the RGB display screen driving module to turn off the RGB color value of the display screen. The display screen driving circuit uses fixed analog switches or MOSFETs to control the RGB signal, using three N-channel MOSFETs (such as IRLZ44N) to control the power supply of the red, green, and blue channels respectively. The gate signal (Gate) of the MOSFET is connected to the output of the data processing module. When the push button is pressed, the latch outputs a low signal, and the MOSFET is turned off, cutting off the RGB current. In addition, current limiting resistors (such as 330Ω) can be connected in series on the anode side of the RGB channel to protect the LED. When the push button is pressed, the push button detection circuit will generate a low signal. The color value control module processes the signal through the logic gate to generate a trigger signal. The data processing module (latch) latches the trigger signal to maintain a stable output of the RGB off signal. The display screen driving module controls the MOSFET switch according to the latch signal to make the RGB channel current 0, turning off the color output of the display screen. This hardware circuit structure is suitable for scenarios with low cost and complexity requirements, and can reliably complete the function of turning off the RGB color value of the display screen when the push button switch is triggered.

[0057] As an embodiment, as shown in Figure 4 The screen brightness control device further includes a display lamp module 105, and the control end of the display lamp module 105 is connected to the data processing module 102. The data processing module 102 adjusts the light-emitting color of the display lamp according to the color value control signal.

[0058] The main function of the indicator light module 105 is to indicate the current status of the system through the color of its emitted light. For example, when the system is in working mode, the indicator light displays green; when the system enters black screen protection mode, the indicator light changes to red or another color. This allows the user to intuitively know the current status of the device (such as whether black screen protection mode is enabled, or whether there are other system states that need attention). The control terminal of the indicator light module 105 is connected to the data processing module 102 via an interface. That is, the data processing module 102 is responsible for receiving signals from the color value control module 104 and adjusting the state of the indicator light according to these signals. This connection method allows the data processing module 102 to determine the behavior of the indicator light module 105 based on the received color value control signals, such as changing the color of the indicator light. The data processing module 102 receives inputs from push-button switches or other control inputs, determining the current working state of the device, such as whether it has entered black screen protection mode or resumed normal operation. Based on the content of the color value control signals, the data processing module 102 controls the emitted color of the indicator light. For example, when the black screen protection mode is activated, the data processing module 102 may indicate that the indicator light turns red, indicating that the black screen has been activated; while when the normal display is restored, the indicator light may turn green, indicating that the device is working normally.

[0059] The technical advantage of this embodiment is that the display lamp module 105, through its connection with the data processing module 102, can adjust the light emission color of the display lamp according to the received color value control signal, providing users with a convenient status indication function and helping users to understand the current working status of the device more clearly.

[0060] As one implementation method, such as Figure 5 As shown, the indicator module 105 includes a first switch Q1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first light-emitting diode D1, a second light-emitting diode D2, a third light-emitting diode D3, and a fourth light-emitting diode D4.

[0061] One end of the second resistor R2 and the control terminal of the first switch Q1 are connected together to the control terminal of the display module. One end of the first switch Q1 is connected to one end of the third resistor R3 and one end of the fourth resistor R4. The other end of the third resistor R3 is connected to the anode of the first light-emitting diode D1 and the cathode of the second light-emitting diode D2. The other end of the fourth resistor R4 is connected to the anode of the third light-emitting diode D3 and the cathode of the fourth light-emitting diode D4. One end of the fifth resistor R5 is connected to the cathode of the first light-emitting diode D1, the anode of the second light-emitting diode D2, the cathode of the third light-emitting diode D3, and the anode of the fourth light-emitting diode D4. The other end of the fifth resistor R5 is connected to the power supply voltage.

[0062] The first switch Q1 is a MOS tube, which controls the switching state of the entire display lamp module 105. When the button is pressed, the MOS tube is triggered to work, and then the circuit is triggered to work. The second resistor R2, the third resistor R3, the fourth resistor R4, and the fifth resistor R5 function to limit the current in the circuit, ensuring that the LED lamp works within a safe range. When the button switch is pressed, the black screen protection mode is entered, the data processing module 102 outputs a high-level signal to the MOS tube, the MOS tube is turned on, the power supply voltage, the second light-emitting diode D2, the fourth light-emitting diode D4, the third resistor R3, the fourth resistor R4, and the MOS tube form a path, and the second light-emitting diode D2 and the fourth light-emitting diode D4 emit green light.

[0063] Through the display lamp module 105, the state of the device is displayed in combination with a plurality of LED lamps and resistors. The user can switch the display of different states by pressing the button. The brightness and color of each LED lamp are adjusted by the current, ensuring that the user can intuitively understand the working state of the device through the change of the color, and avoiding damage to the circuit caused by overcurrent.

[0064] As an embodiment, as shown in Figure 6 The screen brightness control device further comprises:

[0065] A plurality of data interfaces 107 are configured to output a plurality of data signals.

[0066] An integrated control chip 106 is connected to the USB interface 101 and the data processing module 102, respectively, to divide the data signal into a plurality of data signals and output the data signals to the plurality of data interfaces 107.

[0067] The data interface includes at least one of a USB-A interface, a USB-A interface, an SD card interface, and a TF card interface.

[0068] The multiple data interfaces are used to output multiple data signals, which expands the connection function and application range of the device. Through these interfaces, the device can not only output video signals, but also support other data transmission, such as file storage, transmission, and connection of other external devices. The data interfaces include common interface types, such as USB-A interface, USB-C interface, SD card interface, TF card interface, etc. Through these interfaces, users can realize various functions, such as data transmission, device charging, connection of external storage devices, etc. The integrated control chip 106 processes, splits, and redirects the input data signals. The chip receives data signals from the USB interface 101 and the data processing module 102, distributes these signals as multiple data signals, and then outputs them through different data interfaces. When a data source (such as a notebook, mobile phone, etc.) sends data signals through the USB interface, the integrated control chip analyzes and splits the signals and distributes them to different data interfaces, such as USB-A interface, SD card interface, etc., ensuring that different types of data can be output smoothly. The data interfaces provide multiple connection methods, supporting data input and output of external devices. The USB-A interface is commonly used to connect various external devices, such as mouse, keyboard, U disk, etc. The USB-C interface supports higher transmission rate and bidirectional power transmission, which can be used to connect mobile devices, notebook computers, etc. The SD card interface and TF card interface are used to read and write external storage cards, which are usually used to store and transmit data such as photos, videos, files, etc. These interfaces provide diversified data interaction methods for the device, enabling the system to simultaneously exchange data with multiple external devices, improving the multifunctionality of the device.

[0069] By introducing multiple data interfaces and integrated control chips, this technical solution provides stronger multifunctionality and flexibility for the device, supports simultaneous connection and data transmission of multiple external devices, ensures efficient data processing and distribution, improves device compatibility, and adapts to more complex usage requirements.

[0070] As an example, as shown in Figure 7 The integrated control chip 106 can be chip BGS3510, which is powered by a 5V DC voltage. The USB specification data connection signal source composed of pins RXN_UP, RXP_UP, TXN_UP, and TXP_UP is connected to the chip BGS3510. The chip BGS3510 splits the USB3.0 signal into 4 USB3.0 specification signals and outputs them through 4 interfaces DFP1, DFP2, DFP3, and DFP4.

[0071] Embodiment Two

[0072] This embodiment two provides a docking station, as shown inFigure 8 As shown, the docking station includes a housing 201 and a circuit board, which is disposed inside the housing, and the circuit board is provided with the screen brightness control device of the embodiment.

[0073] The color value control module includes a push button switch 202, which is disposed on the surface of the housing 201.

[0074] The docking station is composed of a housing 201 and a circuit board, which is disposed inside the housing 201 and integrates the screen brightness control device. The screen brightness control device realizes the adjustment of the display screen brightness through the color value control module, and the push button switch 202 becomes the interactive interface between the user and the control device, allowing the user to manually adjust the brightness of the display screen.

[0075] The technical solution adjusts the brightness and color value of the display screen by setting the push button switch on the docking station housing to control the color value control module. The design of the push button switch simplifies the user operation, improves the efficiency of screen control, and ensures that the screen content can be quickly hidden when privacy needs to be protected, realizing the rapid "black screen". This design combines efficient circuit board layout, intelligent color value control module and simple user interaction method, making the device operation more convenient, fast and efficient.

[0076] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A screen brightness control device, characterized by comprising: The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device.

2. The screen brightness control apparatus of claim 1, wherein The application relates to a screen brightness control device.

3. The screen brightness control apparatus of claim 2, wherein The application relates to a screen brightness control device.

4. The screen brightness control apparatus of claim 3, wherein The application relates to a screen brightness control device.

5. The screen brightness control apparatus of claim 1, wherein The application relates to a screen brightness control device.

6. The screen brightness control apparatus of claim 5, wherein, The application relates to a screen brightness control device. The application relates to a screen brightness control device.

7. The screen brightness control apparatus of claim 1, wherein The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device.

8. The screen brightness control apparatus of claim 7, wherein, The application relates to a screen brightness control device.

9. A docking station, characterized by The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. The application relates to a screen brightness control device. 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Images