Ultra-thin LCD display manufacturing process based on multi-layer optical technology

Abstract

The present invention provides a manufacturing process for an ultra-thin LCD display screen based on multi-layer optical technology, relates to the technical field of LCD display screens, and includes an ambient light sensing system, a data processing system, a brightness calculation system, and a closed-loop control system. The closed-loop control system is adopted, and through a real-time monitoring and feedback mechanism, combined with PID control and fuzzy logic control, the brightness of the display screen can be effectively adjusted to ensure that it can respond to changes in a timely and accurate manner under various environmental conditions, significantly reducing the delay in brightness adjustment, so that the display screen can quickly adapt to different lighting conditions. The brightness calculation system is adopted, and a smooth brightness adjustment instruction is generated through a gradual adjustment algorithm to avoid abrupt jumps when the brightness changes, ensuring that the brightness change process is more natural and smooth, thereby reducing the visual interference of users, improving the comfort during long-term use, allowing users to focus more on content, and enhancing the overall use experience.

Description

Technical Field

[0001] The invention relates to the technical field of LCD display screens, and in particular to a manufacturing process of an ultra-thin LCD display screen based on a multi-layer optical technology. Background Art

[0002] According to a computer display screen and its manufacturing process disclosed in Chinese patent application publication number "CN118708024A", the screen includes a screen and a shell, the screen is embedded in the shell, and fixed tubes are fixedly connected at both left and right ends of the shell, the fixed tubes are provided with an arc-shaped opening, a rotating tube is sleeved on the outside of the fixed tube, the inner wall of the rotating tube is fitted with the outer wall of the fixed tube, the rotating tube can rotate on the fixed tube, an exhaust port is provided on the rotating tube, a filter is fixedly connected to the exhaust port, an air supply mechanism is provided in the shell, the air supply mechanism is connected to the inside of the two fixed tubes, one end of the arc-shaped opening of the two fixed tubes is provided with an inclined surface, and the lower ends of the two fixed tubes are provided with ash discharge ports, and the two ash discharge ports are sealed by rubber plugs. The computer display screen of the present invention can provide blowing functions at different angles according to the needs of users, thereby further improving the user experience.

[0003] According to a touch display screen disclosed in Chinese patent application publication number "CN107479755A", a first optical adhesive layer is provided between the curved lens and the flexible touch screen, and a second optical adhesive layer is provided between the flexible touch screen and the flexible display screen. The curved lens, the flexible touch screen and the flexible display screen can be set to have curved surfaces with the same curvature, so that the three can be well fitted together, and there will be no space between the three. Therefore, when displaying images, there will be no image distortion, and the image information can be displayed truly. The display effect is better than that of a commonly used flat display screen, and it can be more harmoniously connected with the curved appearance required by the vehicle's dashboard, and the appearance is beautiful.

[0004] The above patent documents and prior art have the following technical problems when used:

[0005] Problem 1: In the above documents and prior art, the traditional display screen has a slow response speed in adjusting the brightness when the ambient light changes, which may cause users to have a poor experience under different lighting conditions. This delayed response may make the screen unable to adapt in time in strong or weak light environments, causing visual discomfort, difficulty in reading content or glare, affecting the user's viewing experience and overall satisfaction;

[0006] Question 2: In the above documents and prior art, sudden changes in brightness may occur when adjusting the brightness, causing visual discomfort and fatigue. Such abrupt changes will not only interfere with the user's attention, but may also cause difficulty in the instantaneous adaptation of the eyes, thereby causing fatigue, dryness or headaches and other discomforts. This problem is especially significant when watching the screen for a long time, affecting the user's experience and health. Summary of the invention

[0007] Technical issues solved

[0008] In view of the shortcomings of the prior art, the present invention provides an ultra-thin LCD display manufacturing process based on multi-layer optical technology, which solves the following problems:

[0009] 1. When the ambient light changes, the response speed of brightness adjustment of traditional displays is slow, which may lead to poor user experience under different lighting conditions;

[0010] 2. Sudden brightness changes may occur when adjusting the brightness, causing visual discomfort and fatigue.

[0011] Technical Solution

[0012] To achieve the above objectives, the present invention is implemented by the following technical solutions: an ultra-thin LCD display manufacturing process based on multi-layer optical technology, the display manufacturing process includes an ambient light sensing system, a data processing system, a brightness calculation system and a closed-loop control system, wherein:

[0013] The ambient light sensing system uses a high-sensitivity light sensor to monitor the ambient light intensity in real time, collects the signal output by the light sensor in real time, and converts it into a digital signal to provide necessary data support to ensure that the display screen can optimize its performance under different lighting conditions;

[0014] The data processing system inputs the data collected by the light sensor into the microcontroller, performs real-time analysis through an adaptive gain control (AGC) algorithm, calculates the target screen brightness, and determines whether the screen brightness needs to be adjusted according to a set threshold;

[0015] The brightness calculation system generates a smooth brightness adjustment instruction through a gradual adjustment algorithm based on the target brightness output by the data processing system to avoid sudden brightness changes;

[0016] The closed-loop control system monitors the actual brightness of the screen in real time and compares it with the target brightness. A PID control algorithm is usually used to generate a control signal to control the screen to adjust the brightness according to the brightness adjustment instruction. Fuzzy logic control can be introduced to enhance the responsiveness of the system. The output is continuously adjusted according to feedback information, so that the system can adjust the screen brightness in a timely and accurate manner when the ambient light changes.

[0017] Preferably, the ambient light sensing system is mainly composed of a high-sensitivity light sensor, a signal processing unit and a data transmission interface. The high-sensitivity light sensor can accurately detect the light intensity of the surrounding environment. This sensor usually has a fast response time and high precision, and can adapt to changes in light. The analog signal collected by the light sensor is processed by the signal processing unit and converted into a digital signal by a built-in analog-to-digital converter (ADC) to facilitate subsequent data processing and analysis. The processed digital signal is transmitted to the data processing system through the data output interface to ensure the real-time and accuracy of the information.

[0018] Preferably, the data processing system analyzes the collected data through an adaptive gain control (AGC) algorithm to adjust the signal strength to adapt it to different lighting conditions, and based on the processed data, the system calculates the target screen brightness;

[0019] Adaptive Gain Control (AGC) algorithm:

[0020] The core purpose of the AGC algorithm is to dynamically adjust the signal gain to adapt to different ambient light conditions and ensure the accuracy of brightness calculation:

[0021] formula:

[0022] ;

[0023] : Gain coefficient, used to amplify or reduce the sensor signal;

[0024] : Set the maximum output signal strength;

[0025] : Real-time light intensity output by the sensor;

[0026] : A small constant to avoid division by zero errors;

[0027] Operation process:

[0028] Get signal: the signal output by the light sensor Delivered to the microcontroller in real time;

[0029] Calculate gain: Calculate gain based on real-time light intensity , to adjust the signal;

[0030] Output signal: Use the signal adjusted by the gain factor as the basis for subsequent calculations;

[0031] Target brightness calculation:

[0032] Based on the data processed by AGC, the system calculates the target brightness:

[0033] formula:

[0034] ;

[0035] : The calculated target screen brightness;

[0036] : Adaptive gain coefficient;

[0037] : Adjusted sensor output signal.

[0038] Preferably, the data processing system determines the difference between the current brightness and the target brightness according to a set brightness threshold, and decides whether the screen brightness needs to be adjusted;

[0039] Threshold determination:

[0040] Based on the difference between the target brightness and the current screen brightness, the system makes a threshold judgment:

[0041] Operation process:

[0042] Current brightness measurement: real-time monitoring of current screen brightness ;

[0043] Calculate the deviation:

[0044] ;

[0045] : brightness deviation;

[0046] Judgment condition: If If the threshold is reached, the screen brightness needs to be adjusted; otherwise, the current brightness is maintained.

[0047] Preferably, the brightness calculation system receives the calculated target brightness value from the data processing system, and generates a brightness adjustment instruction through a gradual adjustment algorithm to achieve a smooth transition;

[0048] Gradient adjustment algorithm:

[0049] The core purpose of the gradient adjustment algorithm is to ensure the smoothness of the brightness change process and avoid sudden changes in user experience. The commonly used gradient adjustment algorithm can be the Sigmoid function:

[0050] formula:

[0051] ;

[0052] :time The adjusted brightness at the moment;

[0053] : Real-time monitoring of the current screen brightness;

[0054] : The calculated target screen brightness;

[0055] : Parameter that controls the rate of brightness change. The larger the value, the faster the change.

[0056] : The time point when the target brightness changes;

[0057] Operation process:

[0058] Get current brightness: The system measures the current screen brightness in real time ;

[0059] Calculate the adjusted brightness: Use the above formula to calculate the adjusted brightness at the current time point ;

[0060] Output brightness command: Send the calculated brightness command to the closed-loop control system.

[0061] Preferably, the closed-loop control system acquires the current brightness value of the screen in real time, calculates the deviation between the current brightness and the target brightness to determine whether adjustment is required, and generally uses a PID control algorithm to generate a control signal to adjust the screen brightness according to the deviation;

[0062] PID control algorithm:

[0063] The PID (Proportional-Integral-Derivative) control algorithm generates a control signal by calculating the deviation and its rate of change to ensure accurate brightness adjustment;

[0064] formula:

[0065] ;

[0066] : Control signal, instructing the screen to adjust the brightness;

[0067] : Brightness deviation, the difference between target brightness and current brightness;

[0068] : The proportional, integral and differential coefficients of the PID controller determine the response speed and stability of the system;

[0069] Operation process:

[0070] Calculate deviation: Calculate the deviation between current brightness and target brightness in real time;

[0071] Generate control signal: Use PID formula to generate control signal and output it to closed-loop control system.

[0072] Preferably, in order to enhance the responsiveness of the system, fuzzy logic control can be introduced into the closed-loop control system to continuously adjust the output according to feedback information;

[0073] Fuzzy logic control:

[0074] Fuzzy logic control improves the responsiveness of closed-loop control systems by dealing with uncertainty and fuzziness, and is suitable for brightness adjustment in complex environments;

[0075] Fuzzy logic control uses fuzzy rules and membership functions;

[0076] Input variables: for example, current brightness, target brightness, rate of illumination change, etc.

[0077] Output variable: adjusted brightness control signal;

[0078] Use fuzzy rules to determine the control signal: if the current brightness is low and the target brightness is high, increase the brightness;

[0079] Operation process:

[0080] Get input data: collect relevant input data according to the current environment and display conditions;

[0081] Apply fuzzy rules: Generate output control signals according to the set fuzzy rules;

[0082] Combining PID signals: The fuzzy control signal can be combined with the PID control signal to further optimize the brightness adjustment.

[0083] Preferably, the application steps of the automatic brightness adjustment mechanism of the display screen are as follows:

[0084] Sp1: Start the ambient light sensing system, monitor the ambient light intensity in real time and collect signals, convert analog signals into digital signals, and send them to the data processing system;

[0085] Sp2: The data processing system receives the signal, applies the AGC algorithm to analyze and calculate the target screen brightness;

[0086] Sp3: Determine whether the current brightness needs to be adjusted based on the set threshold and output the target brightness;

[0087] Sp4: The brightness calculation system receives the target brightness, generates a smooth brightness adjustment instruction, and sends the adjustment instruction to the closed-loop control system for actual brightness adjustment;

[0088] Sp5: The closed-loop control system monitors the current brightness in real time, obtains the current status information, and generates a control signal based on the deviation using the PID control algorithm to guide the brightness adjustment;

[0089] Sp6: Through fuzzy logic control, the closed-loop control system continuously monitors the screen brightness and adjusts the PID control output based on actual feedback to ensure accurate and timely brightness adjustment.

[0090] Preferably, in the ambient light sensing system, the high-sensitivity light sensor used is a photodiode or a phototransistor. The high sensitivity of the photodiode and the phototransistor enables the ambient light sensing system to accurately detect the light intensity under different lighting conditions, providing reliable data support for brightness adjustment. At the same time, the rapid response capability of these two sensors ensures that the system can monitor light changes in real time and adjust the brightness of the display screen in time to optimize the visual experience and improve the accuracy and response speed of light intensity detection.

[0091] Preferably, in the closed-loop control system, high-sensitivity light sensors are used to obtain the current brightness value of the screen in real time. These sensors can quickly respond to changes in lighting to ensure that the acquired data is accurate and timely. The light sensors regularly collect brightness data of ambient light and screen reflected light, and convert them into digital signals for subsequent processing. At the same time, they cooperate with subsequent operations to form a continuously circulating feedback mechanism, so that the system can adjust the screen brightness in a timely and accurate manner when the ambient light changes to maintain visual comfort and display effects.

[0092] Beneficial Effects

[0093] The present invention provides a manufacturing process for an ultra-thin LCD display screen based on multi-layer optical technology. It has the following beneficial effects:

[0094] 1. The present invention adopts a closed-loop control system. The closed-loop control system monitors the current screen brightness in real time and compares it with the target brightness provided by the ambient light sensing system. The system uses a PID control algorithm to quickly calculate the brightness difference and generate an adjustment signal to adjust the brightness of the display screen in time. Fuzzy logic control is introduced to enhance the responsiveness of the system. According to feedback information, the output is continuously adjusted so that the system can adjust the screen brightness in time and accurately when the ambient light changes. The key to this method lies in the feedback mechanism, which enables the system to dynamically adapt to environmental changes. Compared with traditional technologies, this response mechanism significantly reduces the delay in brightness adjustment, allowing the display screen to quickly adapt to different lighting conditions, providing a more comfortable viewing experience and reducing the user's visual discomfort in strong or weak light environments.

[0095] 2. The present invention adopts a brightness calculation system and generates smooth brightness adjustment instructions through a gradual adjustment algorithm to avoid abrupt jumps when the brightness changes. This method ensures that the brightness change process is more natural and smooth, thereby reducing the user's visual interference. By achieving smooth brightness adjustment, the user's visual fatigue and discomfort during viewing are significantly reduced, and the comfort level during long-term use is improved, allowing users to focus more on the content and enhance the overall user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] Figure 1 is a system structure diagram of the present invention;

[0097] Figure 2 It is a diagram of the system operation steps of the present invention;

[0098] Figure 3 It is a simulation diagram of the brightness adjustment process and error change of the present invention. DETAILED DESCRIPTION

[0099] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Specific embodiment one:

[0101] like Figures 1 to 3 As shown, the ultra-thin LCD display manufacturing process based on multi-layer optical technology is characterized in that the display manufacturing process includes an ambient light sensing system, a data processing system, a brightness calculation system and a closed-loop control system, wherein:

[0102] The ambient light sensing system uses a high-sensitivity light sensor to monitor the ambient light intensity in real time, collects the signal output by the light sensor in real time, and converts it into a digital signal to provide necessary data support to ensure that the display can optimize its performance under different lighting conditions. The ambient light sensing system is mainly composed of a high-sensitivity light sensor, a signal processing unit, and a data transmission interface. The high-sensitivity light sensor can accurately detect the light intensity of the surrounding environment. This sensor usually has a fast response time and high precision, and can adapt to changes in light. The analog signal collected by the light sensor is processed by the signal processing unit and converted into a digital signal through the built-in analog-to-digital converter (ADC) for subsequent data processing and analysis. The processed digital signal is transmitted to the data processing system through the data output interface to ensure the real-time and accuracy of the information. In the ambient light sensing system, the high-sensitivity light sensor used is a photodiode or a phototransistor. The high sensitivity of the photodiode and the phototransistor enables the ambient light sensing system to accurately detect the light intensity under different lighting conditions and provide reliable data support for brightness adjustment. At the same time, the fast response capability of these two sensors ensures that the system can monitor light changes in real time and adjust the brightness of the display in time to optimize the visual experience and improve the accuracy and response speed of light intensity detection.

[0103] The data processing system inputs the data collected by the light sensor into the microcontroller, performs real-time analysis through the adaptive gain control (AGC) algorithm, and calculates the target screen brightness. According to the set threshold, it determines whether the screen brightness needs to be adjusted. The threshold judgment can prevent frequent adjustment of the screen brightness when the ambient light changes are not significant, avoiding interference to the user. By setting the upper and lower thresholds, it can ensure that the target brightness remains within the user's comfortable range to avoid visual discomfort caused by excessive brightness or darkness. The threshold can be dynamically adjusted according to different usage scenarios and user preferences to better adapt to environmental changes. In the case of frequent changes in ambient light, adding threshold judgment can improve the stability of the system and reduce the impact of excessive adjustment;

[0104] The brightness calculation system generates smooth brightness adjustment instructions based on the target brightness output by the data processing system through a gradient adjustment algorithm. The algorithm controls the rate and amplitude of brightness change to ensure that the screen smoothly transitions to the target brightness during the adjustment process. This method effectively avoids abrupt brightness jumps, reduces the user's visual stimulation, and thus improves the viewing experience. In actual applications, the system will continuously monitor the difference between the current brightness and the target brightness, and gradually adjust the brightness according to the set gradient parameters;

[0105] The closed-loop control system uses highly sensitive light sensors to obtain the current brightness value of the screen in real time. These sensors can quickly respond to changes in lighting to ensure that the acquired data is accurate and timely. The light sensors regularly collect the brightness data of ambient light and screen reflected light, and convert them into digital signals for subsequent processing. At the same time, they cooperate with subsequent operations to form a continuous feedback mechanism, so that the system can adjust the screen brightness in a timely and accurate manner when the ambient light changes to maintain visual comfort and display effects, and feed these data back to the controller for comparison with the target brightness. Through real-time feedback, the system can quickly and dynamically adjust the screen brightness according to changes in ambient light to ensure that the display effect always adapts to the surrounding lighting conditions. The PID control algorithm is usually used to generate a control signal, and the output is accurately adjusted according to the feedback error (the gap between the actual brightness and the target brightness). The screen is controlled to adjust the brightness according to the brightness adjustment instruction. Fuzzy logic control can be introduced to enhance the responsiveness of the system. According to the feedback information, the output is continuously adjusted, so that the system can adjust the screen brightness in a timely and accurate manner when the ambient light changes. The ambient light intensity data monitored by the ambient light sensing system is a response to the external environment, while the screen brightness monitoring monitored by the closed-loop control system directly reflects the display effect. The closed-loop control system can promptly correct errors caused by environmental changes or adjustment delays to ensure more accurate brightness adjustment. In some cases, the ambient light may change rapidly and dramatically, and relying solely on the ambient light sensing system for monitoring may not be able to respond quickly. The closed-loop control can adjust the screen brightness immediately when the ambient light changes through real-time feedback, providing better adaptability.

[0106] The entire system achieves rapid response and gradual and precise adjustment of display brightness through the coordinated work of the integrated ambient light sensing system, data processing system, brightness calculation system and closed-loop control system. The ambient light sensing system monitors the lighting conditions in real time, the data processing system analyzes the data and calculates the target brightness, the brightness calculation system generates smooth brightness adjustment instructions, and the closed-loop control system ensures that the screen brightness is consistent with the target value through real-time feedback. This collaboration optimizes the display effect, improves the user's viewing comfort, and significantly reduces visual fatigue. Specific embodiment 2:

[0108] like Figures 1 to 3 As shown, according to the contents in the above specific embodiments, the following contents are further disclosed:

[0109] The data processing system analyzes the collected data through the adaptive gain control (AGC) algorithm to adjust the signal strength to adapt to different lighting conditions. Based on the processed data, the system calculates the target screen brightness. The data processing system determines the difference between the current brightness and the target brightness based on the set brightness threshold and decides whether the screen brightness needs to be adjusted;

[0110] Adaptive Gain Control (AGC) algorithm:

[0111] The core purpose of the AGC algorithm is to dynamically adjust the signal gain to adapt to different ambient light conditions and ensure the accuracy of brightness calculation:

[0112] formula:

[0113] ;

[0114] : Gain coefficient, used to amplify or reduce the sensor signal;

[0115] : Set the maximum output signal strength;

[0116] : Real-time light intensity output by the sensor;

[0117] : A small constant to avoid division by zero errors;

[0118] Operation process:

[0119] Get signal: real-time light intensity output by the light sensor Delivered to the microcontroller in real time;

[0120] Calculate gain: Calculate gain based on real-time light intensity , to adjust the signal;

[0121] Output signal: Use the signal adjusted by the gain factor as the basis for subsequent calculations;

[0122] Target brightness calculation:

[0123] Based on the data processed by AGC, the system calculates the target brightness:

[0124] formula:

[0125] ;

[0126] : The calculated target screen brightness;

[0127] : Adaptive gain coefficient;

[0128] : The adjusted transmitter output signal;

[0129] Threshold determination:

[0130] Based on the difference between the target brightness and the current screen brightness, the system makes a threshold judgment:

[0131] Operation process:

[0132] Current brightness measurement: real-time monitoring of current screen brightness ;

[0133] Calculate the deviation:

[0134] ;

[0135] : brightness deviation;

[0136] Judgment condition: If If the threshold is exceeded, the screen brightness needs to be adjusted; otherwise, the current brightness is maintained;

[0137] The data processing system effectively optimizes signal processing through the AGC algorithm, ensures accurate calculation of target brightness, and decides whether to adjust brightness through a threshold judgment mechanism, thereby achieving intelligent and automated screen brightness management.

[0138] The brightness calculation system receives the calculated target brightness value from the data processing system and generates a brightness adjustment instruction through a gradual adjustment algorithm to achieve a smooth transition;

[0139] Gradient adjustment algorithm:

[0140] The core purpose of the gradient adjustment algorithm is to ensure the smoothness of the brightness change process and avoid sudden changes in user experience. The commonly used gradient adjustment algorithm can be the Sigmoid function:

[0141] formula:

[0142] ;

[0143] :time The adjusted brightness at the moment;

[0144] : Real-time monitoring of the current screen brightness;

[0145] : The calculated target screen brightness;

[0146] : Parameter that controls the rate of brightness change. The larger the value, the faster the change.

[0147] : The time point when the target brightness changes;

[0148] Operation process:

[0149] Get current brightness: The system measures the current screen brightness in real time ;

[0150] Calculate the adjusted brightness: Use the above formula to calculate the adjusted brightness at the current time point ;

[0151] Output brightness command: send the calculated brightness command to the closed-loop control system;

[0152] The brightness calculation system generates smooth brightness adjustment instructions through a gradual adjustment algorithm, effectively avoiding sudden changes in brightness and ensuring that users have a comfortable visual experience under different ambient lighting conditions.

[0153] The closed-loop control system uses a light sensor to obtain the current brightness value of the screen in real time, calculates the deviation between the current brightness and the target brightness to determine whether adjustment is needed, and usually uses a PID control algorithm to generate a control signal to adjust the screen brightness according to the deviation. In order to enhance the responsiveness of the system, fuzzy logic control can be introduced to continuously adjust the output according to feedback information;

[0154] PID control algorithm:

[0155] The PID (Proportional-Integral-Derivative) control algorithm generates a control signal by calculating the deviation and its rate of change to ensure accurate brightness adjustment;

[0156] formula:

[0157] ;

[0158] : Control signal, instructing the screen to adjust the brightness;

[0159] : Brightness deviation, the difference between target brightness and current brightness;

[0160] : The proportional, integral and differential coefficients of the PID controller determine the response speed and stability of the system;

[0161] Operation process:

[0162] Calculate deviation: Calculate the deviation between current brightness and target brightness in real time;

[0163] Generate control signal: Use PID formula to generate control signal and output it to closed-loop control system;

[0164] Fuzzy logic control:

[0165] Fuzzy logic control improves the responsiveness of closed-loop control systems by dealing with uncertainty and fuzziness, and is suitable for brightness adjustment in complex environments;

[0166] Fuzzy logic control uses fuzzy rules and membership functions;

[0167] Input variables: for example, current brightness, target brightness, rate of illumination change, etc.

[0168] Output variable: adjusted brightness control signal;

[0169] Use fuzzy rules to determine the control signal: if the current brightness is low and the target brightness is high, increase the brightness;

[0170] Operation process:

[0171] Get input data: collect relevant input data according to the current environment and display conditions;

[0172] Apply fuzzy rules: Generate output control signals according to the set fuzzy rules;

[0173] Combined with PID signal: The fuzzy control signal can be combined with the PID control signal to further optimize the brightness adjustment;

[0174] The closed-loop control system, through real-time monitoring and feedback mechanisms, combined with PID control and fuzzy logic control, can effectively adjust the brightness of the display screen, ensuring that it can respond to changes in a timely and accurate manner under various environmental conditions.

[0175] Through the above system and algorithm, we can get Figure 3 The simulation diagrams shown represent the brightness adjustment process and error change respectively. The following is the specific meaning of each diagram:

[0176] 1.Brightness adjustment process diagram:

[0177] Horizontal axis: represents the adjustment steps (time);

[0178] Vertical axis: represents the current brightness value;

[0179] Meaning of the figure: This figure shows how the current brightness is gradually adjusted over time and eventually approaches the target brightness (100). Ideally, the curve should rise or fall smoothly, reflecting the gradual characteristics of the brightness adjustment process. The simulation shows how to gradually adjust the screen brightness through the PID control algorithm to achieve the set target brightness, which corresponds to the brightness calculation system and closed-loop control system in the system.

[0180] 2. Error change diagram:

[0181] Horizontal axis: also represents the steps of adjustment;

[0182] Vertical axis: represents the current error value (the difference between the target brightness and the current brightness).

[0183] Meaning of the graph: This graph shows how the error between the current brightness and the target brightness changes over time. Ideally, the error should gradually decrease and eventually approach zero, indicating that the current brightness is close to the target brightness. The error change graph reflects the difference between the current brightness and the target brightness, simulating how a closed-loop control system optimizes brightness regulation through a feedback mechanism.

[0184] pass Figure 3 The simulation diagram shown can intuitively observe the response characteristics and adjustment effects of the system. The brightness adjustment process diagram reflects the system's gradual adjustment capability, while the error change diagram shows the system's ability to correct errors. Overall, the ideal result is that the brightness value rises smoothly and eventually equals the target brightness, and the error curve should gradually drop to near zero. Specific embodiment three:

[0186] like Figures 1 to 3 As shown, according to the contents in the above specific embodiments, the following contents are further disclosed:

[0187] The specific application logic of the whole system:

[0188] Ambient light sensing system: Light sensors (such as photodiodes or phototransistors) collect ambient light data in real time, convert analog signals into digital signals through analog-to-digital converters (ADCs), and output the processed digital signals to the data processing system.

[0189] Data processing system: Receives the processed digital signal from the ambient light sensing system, analyzes and calculates the target screen brightness in real time through the adaptive gain control (AGC) algorithm, determines whether the screen brightness needs to be adjusted based on the set threshold, avoids frequent adjustments, and outputs the calculated target brightness to the brightness calculation system.

[0190] Brightness calculation system: Receives the target brightness value from the data processing system, controls the rate and amplitude of brightness change through the gradient adjustment algorithm according to the set gradient parameters, generates smooth brightness adjustment instructions to avoid abrupt brightness changes, and transmits the instructions to the closed-loop control system.

[0191] Closed-loop control system: monitors screen brightness in real time and compares it with the target brightness. It uses the adjustment instructions generated by the brightness calculation system, combined with the PID control algorithm and fuzzy logic control, to make precise adjustments based on real-time feedback. If there is a deviation between the current brightness and the target brightness, the closed-loop control system will immediately adjust the output based on the feedback information to ensure that the brightness meets the requirements. Specific embodiment four:

[0193] like Figures 1 to 3 As shown, according to the contents in the above specific embodiments, the following contents are further disclosed:

[0194] In the manufacturing process of ultra-thin LCD displays based on multi-layer optical technology, each system not only relies on algorithms, but also involves hardware components and corresponding functions. The following is the detailed hardware composition and description of each system:

[0195] Ambient light sensing system:

[0196] Hardware composition:

[0197] High-sensitivity light sensor: used to detect ambient light intensity in real time, usually using a photodiode or phototransistor. These sensors have the characteristics of fast response and high precision, and can accurately capture changes in ambient light;

[0198] Signal processing unit: usually includes amplifier and filter circuit, which is used to perform preliminary processing on the analog signal collected by the light sensor, amplify the signal and remove noise;

[0199] Analog-to-digital converter (ADC): converts the analog signal output by the light sensor into a digital signal for subsequent processing and calculation;

[0200] Data transmission interface: used to transmit the processed digital signal to the data processing system. It can be a common communication interface such as SPI, I2C, etc.

[0201] Functional description:

[0202] The ambient light sensing system monitors the changes in ambient light in real time, converts this data into digital signals, and transmits it to the data processing system. The system uses high-precision light sensors to ensure accurate and timely detection of ambient light, especially when lighting conditions change rapidly, providing reliable data support for brightness adjustment.

[0203] Data processing system:

[0204] Hardware composition:

[0205] Microcontroller (MCU): The core processing unit responsible for processing and analyzing the digital signals from the ambient light sensing system. Typical MCUs include ARM Cortex-M series or similar processors with fast processing capabilities.

[0206] Adaptive Gain Control (AGC) circuit: dynamically adjusts the gain of the input signal according to the changes in ambient light to avoid signal saturation or distortion when the light changes drastically;

[0207] Memory unit: stores historical ambient light data and current analysis results for prediction and control, and may include EEPROM, SRAM and other types of memory;

[0208] Communication interface: A module used to communicate with other systems (such as brightness calculation system, closed-loop control system), which can be a serial port, I2C, SPI, etc.

[0209] Functional description:

[0210] The main function of the data processing system is to receive data from the ambient light sensing system, analyze the light intensity through the AGC algorithm and calculate the target brightness. The system sets upper and lower thresholds to prevent frequent or unnecessary brightness adjustments, ensuring that the screen brightness remains within the user's comfortable range. It is also responsible for passing the analysis results to the brightness calculation system.

[0211] Brightness calculation system:

[0212] Hardware composition:

[0213] Microcontroller or digital signal processor (DSP): executes the brightness adjustment algorithm and generates specific brightness adjustment instructions;

[0214] Storage unit: stores the parameters of the gradient adjustment algorithm, such as brightness change rate, gradient amplitude, etc. The storage device can be a flash memory, EEPROM, etc.;

[0215] Communication module: used to transmit the calculated brightness adjustment instructions to the closed-loop control system. The communication methods may include I2C, SPI, UART, etc.

[0216] Functional description:

[0217] The core task of the brightness calculation system is to generate smooth brightness adjustment instructions through a gradient adjustment algorithm based on the target brightness provided by the data processing system. Its purpose is to avoid sudden brightness changes and ensure that the brightness adjustment process is natural and smooth. The system controls the rate and amplitude of brightness adjustment, thereby reducing the user's visual stimulation and discomfort when the brightness changes.

[0218] Closed-loop control system:

[0219] Hardware composition:

[0220] Light sensor (or light detection module built into the screen): used to monitor the actual brightness of the screen in real time and compare it with the target brightness;

[0221] PID controller: The core of closed-loop control, usually implemented by a dedicated control chip or a microcontroller, responsible for generating control signals for adjusting screen brightness;

[0222] Fuzzy logic control module: can be implemented through digital circuits or DSP to enhance the system's adaptability to complex lighting changes;

[0223] PWM (Pulse Width Modulation) driver: used to adjust the screen brightness according to the PID control signal. The PWM signal adjusts the brightness of the LCD backlight by controlling the switching frequency of the power supply.

[0224] Feedback circuit: monitors the current brightness status of the screen and feeds back the actual brightness data to the PID controller.

[0225] Functional description:

[0226] The main function of the closed-loop control system is to monitor the screen brightness in real time and compare it with the instructions of the brightness calculation system. The system uses a PID control algorithm to generate an adjustment signal based on the difference between the current brightness and the target brightness to ensure that the brightness adjustment is accurate. At the same time, fuzzy logic control can further enhance the system's response speed and adaptability in complex or sudden environments.

[0227] LCD screen and backlight control module:

[0228] Hardware composition:

[0229] LCD display panel: a screen used to display images and content. Based on multi-layer optical technology, it displays distinct levels and ensures high brightness and high contrast.

[0230] Backlight LED array: The LED light group that provides the light source. By adjusting its brightness, the overall brightness of the screen can be controlled;

[0231] LED drive circuit: used to control the brightness output of the backlight LED, usually adjusted using PWM drive method.

[0232] Functional description:

[0233] The LCD screen and backlight control module is responsible for applying the brightness adjustment signal provided by the closed-loop control system to the display screen. The PWM-controlled backlight LED array gradually adjusts the brightness according to the PID control signal to ensure a smooth transition while minimizing visual impact. Specific embodiment five:

[0235] like Figures 1 to 3 As shown, according to the contents in the above specific embodiments, the following contents are further disclosed:

[0236] The application steps of the automatic brightness adjustment mechanism of the display are as follows:

[0237] Sp1: Start the ambient light sensing system, monitor the ambient light intensity in real time and collect signals, convert analog signals into digital signals, and send them to the data processing system;

[0238] Sp2: The data processing system receives the signal, applies the AGC algorithm to analyze and calculate the target screen brightness;

[0239] Sp3: Determine whether the current brightness needs to be adjusted based on the set threshold and output the target brightness;

[0240] Sp4: The brightness calculation system receives the target brightness, generates a smooth brightness adjustment instruction using a gradient adjustment algorithm, and sends the adjustment instruction to the closed-loop control system for actual brightness adjustment;

[0241] Sp5: The closed-loop control system monitors the current brightness in real time, obtains the current state information, and uses the PID control algorithm to generate an adjustment signal based on the difference between the target brightness and the current brightness to control the brightness of the backlight LED array. The PWM drive circuit gradually adjusts the backlight brightness based on the signal provided by the closed-loop control system to achieve a smooth transition.

[0242] Sp6: Through fuzzy logic control, the closed-loop control system continuously monitors the screen brightness and adjusts the PID control output based on actual feedback to ensure accurate and timely brightness adjustment.

[0243] The system achieves automatic and smooth brightness adjustment by real-time monitoring of ambient light intensity, combined with adaptive gain control algorithm and gradual adjustment algorithm, avoiding abrupt changes and improving the user's visual comfort under different lighting conditions. At the same time, the closed-loop control system uses PID algorithm and fuzzy logic control to ensure rapid response and accuracy of brightness adjustment, thereby significantly enhancing the overall user experience.

[0244] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0245] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Ultra-thin LCD display manufacturing process based on multi-layer optical technology, characterized by: The display screen manufacturing process includes an ambient light sensing system, a data processing system, a brightness calculation system and a closed-loop control system, wherein: The ambient light sensing system uses a high-sensitivity light sensor to monitor the ambient light intensity in real time, collects the signal output by the light sensor in real time, and converts it into a digital signal to provide necessary data support to ensure that the display screen can optimize its performance under different lighting conditions; The data processing system inputs the data collected by the light sensor into the microcontroller, performs real-time analysis through an adaptive gain control (AGC) algorithm, calculates the target screen brightness, and determines whether the screen brightness needs to be adjusted according to a set threshold; The brightness calculation system generates a smooth brightness adjustment instruction through a gradual adjustment algorithm based on the target brightness output by the data processing system to avoid sudden brightness changes; The brightness calculation system receives the calculated target brightness value from the data processing system, and generates a brightness adjustment instruction through a gradual adjustment algorithm to achieve a smooth transition; Gradient adjustment algorithm: The core purpose of the gradient adjustment algorithm is to ensure the smoothness of the brightness change process and avoid sudden changes in user experience. The gradient adjustment algorithm is a Sigmoid function: formula: B adjust (t): adjusted brightness at time t; B current : Real-time monitoring of the current screen brightness; B target : The calculated target screen brightness; k: Parameter that controls the rate of brightness change. The larger the value, the faster the change. t0: the time point when the target brightness changes; Operation process: Get current brightness: The system measures the current screen brightness B in real time current ; Calculate the adjusted brightness: Use the above formula to calculate the adjusted brightness B at the current time point adjust (t); Output brightness command: send the calculated brightness command to the closed-loop control system; The closed-loop control system monitors the actual brightness of the screen in real time, compares it with the target brightness, uses a PID control algorithm to generate a control signal, controls the screen to adjust the brightness according to the brightness adjustment instruction, introduces fuzzy logic control to enhance the responsiveness of the system, and continuously adjusts the output according to the feedback information, so that the system can adjust the screen brightness in a timely and accurate manner when the ambient light changes; The closed-loop control system acquires the current brightness value of the screen in real time, calculates the deviation between the current brightness and the target brightness to determine whether adjustment is required, generates a control signal using a PID control algorithm, and adjusts the screen brightness according to the deviation; PID control algorithm: The PID (proportional-integral-derivative) control algorithm generates a control signal by calculating the deviation and its rate of change to ensure the accuracy of brightness adjustment; formula: u(t): control signal, instructing the screen to adjust brightness; e(t)=B target -B current : Brightness deviation, the difference between target brightness and current brightness; K p , K i , K d : The proportional, integral and differential coefficients of the PID controller determine the response speed and stability of the system; Operation process: Calculate deviation: Calculate the deviation between current brightness and target brightness in real time; Generate control signal: Use PID formula to generate control signal and output it to closed-loop control system.

2. The ultra-thin LCD display manufacturing process based on multi-layer optical technology according to claim 1, characterized in that: The ambient light sensing system is composed of a high-sensitivity light sensor, a signal processing unit and a data transmission interface. The high-sensitivity light sensor can accurately detect the light intensity of the surrounding environment. This sensor has a fast response time and high precision and can adapt to changes in light. The analog signal collected by the light sensor is processed by the signal processing unit and converted into a digital signal by a built-in analog-to-digital converter (ADC) to facilitate subsequent data processing and analysis. The processed digital signal is transmitted to the data processing system through the data output interface to ensure the real-time and accuracy of the information.

3. The ultra-thin LCD display manufacturing process based on multi-layer optical technology according to claim 1, characterized in that: The data processing system analyzes the collected data through an adaptive gain control (AGC) algorithm to adjust the signal strength to adapt it to different lighting conditions. Based on the processed data, the system calculates the target screen brightness; Adaptive Gain Control (AGC) algorithm: The core purpose of the AGC algorithm is to dynamically adjust the signal gain to adapt to different ambient light conditions and ensure the accuracy of brightness calculation: formula: G: Gain factor, used to amplify or reduce the sensor signal; I max : Set the maximum output signal strength; I sensor : Real-time light intensity output by the sensor; ∈: a small constant to avoid division by zero errors; Operation process: Get signal: signal I output by the light sensor sensor Delivered to the microcontroller in real time; Calculate gain: Calculate the gain G according to the real-time light intensity to adjust the signal; Output signal: Use the signal adjusted by the gain factor as the basis for subsequent calculations; Target brightness calculation: Based on the data processed by AGC, the system calculates the target brightness: formula: B target =G·I sensor ′; B target : The calculated target screen brightness; G: adaptive gain coefficient; I sensor ': Adjusted sensor output signal.

4. The ultra-thin LCD display manufacturing process based on multi-layer optical technology according to claim 3, characterized in that: The data processing system determines the difference between the current brightness and the target brightness according to the set brightness threshold, and decides whether the screen brightness needs to be adjusted; Threshold determination: Based on the difference between the target brightness and the current screen brightness, the system makes a threshold judgment: Operation process: Current brightness measurement: real-time monitoring of the current screen brightness B current ; Calculate the deviation: e(t)=B target -B current ; e(t): brightness deviation; Judgment condition: If |e(t)|>threshold, the screen brightness needs to be adjusted; otherwise, the current brightness is maintained.

5. The ultra-thin LCD display manufacturing process based on multi-layer optical technology according to claim 1, characterized in that: In order to enhance the responsiveness of the system, fuzzy logic control is introduced into the closed-loop control system to continuously adjust the output according to feedback information; Fuzzy logic control: Fuzzy logic control improves the responsiveness of closed-loop control systems by dealing with uncertainty and fuzziness, and is suitable for brightness adjustment in complex environments; Fuzzy logic control uses fuzzy rules and membership functions; Input variables: current brightness, target brightness, rate of illumination change; Output variable: adjusted brightness control signal; Use fuzzy rules to determine the control signal: if the current brightness is low and the target brightness is high, increase the brightness; Operation process: Get input data: collect relevant input data according to the current environment and display conditions; Apply fuzzy rules: Generate output control signals according to the set fuzzy rules; Combined with PID signal: Combine the fuzzy control signal with the PID control signal to further optimize the brightness adjustment.

6. The ultra-thin LCD display manufacturing process based on multi-layer optical technology according to claim 2, characterized in that: In the ambient light sensing system, the high-sensitivity light sensor used is a photodiode or a phototransistor. The high sensitivity of the photodiode and the phototransistor enables the ambient light sensing system to accurately detect the light intensity under different lighting conditions and provide reliable data support for brightness adjustment. At the same time, the fast response capability of these two sensors ensures that the system can monitor light changes in real time and adjust the brightness of the display screen in time to optimize the visual experience and improve the accuracy and response speed of light intensity detection.

7. The ultra-thin LCD display manufacturing process based on multi-layer optical technology according to claim 1, characterized in that: In the closed-loop control system, high-sensitivity light sensors are used to obtain the current brightness value of the screen in real time. These sensors can quickly respond to changes in lighting to ensure that the acquired data is accurate and timely. The light sensors regularly collect brightness data of ambient light and screen reflected light, and convert them into digital signals for subsequent processing. At the same time, they cooperate with subsequent operations to form a continuously circulating feedback mechanism, so that the system can adjust the screen brightness in a timely and accurate manner when the ambient light changes to maintain visual comfort and display effects.

8. The ultra-thin LCD display manufactured by the ultra-thin LCD display manufacturing process according to any one of claims 1 to 5 is characterized in that: The automatic brightness adjustment steps of the ultra-thin LCD display are as follows: Sp1: Start the ambient light sensing system, monitor the ambient light intensity in real time and collect signals, convert analog signals into digital signals, and send them to the data processing system; Sp2: The data processing system receives the signal, applies the AGC algorithm to analyze and calculate the target screen brightness; Sp3: Determine whether the current brightness needs to be adjusted based on the set threshold and output the target brightness; Sp4: The brightness calculation system receives the target brightness, generates a smooth brightness adjustment instruction, and sends the adjustment instruction to the closed-loop control system for actual brightness adjustment; Sp5: The closed-loop control system monitors the current brightness in real time, obtains the current status information, and generates a control signal based on the deviation using the PID control algorithm to guide the brightness adjustment; Sp6: Through fuzzy logic control, the closed-loop control system continuously monitors the screen brightness and adjusts the PID control output based on actual feedback to ensure accurate and timely brightness adjustment.

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