LCD display screen based on microlens array and optical optimization system thereof

Abstract

According to the LCD display screen based on the microlens array and the optical optimization system thereof, the light incidence detection module detects the incidence condition of light and transmits data to the data analysis module, and the visual angle extension evaluation module evaluates the visual angle extension angle and feeds back the visual angle extension angle to the data analysis module; the color calibration module carries out calibration according to the result of the data analysis module, the gray scale accuracy detection module detects the gray scale accuracy and sends the result to the data analysis module, comprehensive optimization of the optical performance of the LCD display screen is jointly achieved, and through flexible adjustment of the distance of the micro-lens array, the driving voltage of the liquid crystal layer and the orientation of liquid crystal molecules, the optical performance of the LCD display screen is improved. Compared with the prior art, more uniform and wider visual experience is provided, and through high-precision light incidence, visual angle expansion angle and brightness uniformity detection, high-resolution gray scale accuracy detection and precise color calibration, it is ensured that the display screen can present accurate and vivid images in various use scenes.

Description

Technical Field

[0001] The present invention relates to the field of LCD display screens, and in particular to an LCD display screen based on a microlens array and an optical optimization system thereof. Background Art

[0002] In the development history of LCD display screens, the optimization of their optical performance has always been the focus of attention in the industry. The online monitoring system for LCD display screens based on ultra-wide-angle image sampling proposed in Chinese invention patent application number: CN202010255730.1 includes an acquisition mechanism, a front-end processor, a cloud server and a maintenance center. The acquisition mechanism includes a plurality of ultra-wide-angle lenses arranged on the side of the LCD display screen, and the ultra-wide-angle lenses are electrically connected to the front-end processor. The front-end processor, the cloud server and the maintenance center are communicatively connected in sequence. The present invention provides an online monitoring system and method for LCD display screens based on ultra-wide-angle image sampling, which can realize efficient online monitoring of LCD display screens.

[0003] Traditional LCD screens have many deficiencies in practical applications. In the prior art, there is usually a lack of comprehensive and accurate means of optical parameter detection. The detection of brightness is not precise enough, and it is difficult to accurately capture subtle areas of uneven brightness, which may cause the display screen to be too bright or too dark in some parts, affecting the overall visual effect. In terms of contrast, due to the inability to accurately analyze and optimize, the layering of the picture is not clear enough, and the details are not clear. The measurement and optimization of viewing angles are also relatively rough, which limits the user experience when viewing at different angles, and is prone to color distortion and brightness attenuation problems.

[0004] Moreover, the control of the incident angle and intensity of light is not accurate enough, and it is impossible to make effective adjustments according to the actual situation. In the application of microlens arrays, the spacing adjustment is not flexible enough and cannot adapt well to different display requirements. The driving voltage of the liquid crystal layer is also difficult to optimize according to the specific situation, resulting in poor display effects. At the same time, the existing system has low accuracy in monitoring brightness uniformity and cannot promptly detect and solve the problem of large local brightness differences. In terms of color calibration and grayscale accuracy, there are also insufficient accuracy and untimely adjustments, resulting in inaccurate color reproduction of the image and unnatural grayscale transitions. Therefore, we have made improvements to this and proposed an LCD display based on a microlens array and its optical optimization system. Summary of the invention

[0005] The purpose of the present invention is to solve the problems raised by the existing background technology. In order to achieve the above invention purpose, the present invention provides the following technical solutions: an LCD display screen based on a microlens array, comprising a liquid crystal layer, the LCD liquid crystal layer is located between an upper polarizer and a lower polarizer, a color filter is arranged on the light-emitting side of the liquid crystal layer, a microlens array is arranged on the outer side of the color filter, the microlens array is composed of a plurality of neatly arranged microlenses, each microlens is in the shape of a circle, a square or, the microlens array is tightly attached to a glass substrate through optical glue, a liquid crystal control chip is connected to a display driver circuit board through a flexible circuit, and receives and processes display signals.

[0006] As a preferred technical solution of the present invention, the display driver circuit board is connected to the pixel electrode and the common electrode through the data line and the scan line respectively to control the arrangement of the liquid crystal molecules. The pixel electrode and the common electrode sandwich the liquid crystal molecule layer to form a liquid crystal capacitor, and the deflection of the liquid crystal molecules is controlled by voltage. A backlight source module is arranged on the rear side of the LCD liquid crystal layer, and the backlight source module is connected to the power management chip through a power line.

[0007] As a preferred technical solution of the present invention, the lens diameter of the microlens array is between 13 and 56 microns, and the microlens array is made of a high refractive index material, which includes polycarbonate or glass.

[0008] As a preferred technical solution of the present invention, a diffusion layer is arranged outside the color filter, the diffusion layer parameter thickness is 2 microns to 12 microns, and the diffusion layer is made of a polymer material with high light transmittance, and the polymer material includes polymethyl methacrylate (PMMA).

[0009] An optical optimization system for an LCD display screen based on a microlens array comprises an optical detection module, a data analysis module and a control module; the optical detection module uses a brightness meter, a contrast meter and a viewing angle measurement to detect optical parameters of the LCD display screen, and transmits the detection data to the data analysis module for analyzing and processing the received data, and compares the received data with preset standard parameters to determine the parameters that need to be optimized; when the detected brightness unevenness exceeds a set threshold, the data analysis module determines that the spacing of the microlens array or the driving voltage of the liquid crystal layer needs to be adjusted, and the control module adjusts the parameters of the microlens array and the driving voltage of the liquid crystal layer through a control circuit according to the result of the data analysis module; the control module is implemented by a microcontroller or a digital signal processor.

[0010] As a preferred technical solution of the present invention, the data analysis module is connected to the light incident detection module, the light incident detection module transmits the detection data to the data analysis module, the light incident detection module has a light intensity range of 0-10000 lux and an angle detection accuracy of ±1°, and the control module is connected to the microlens array position adjustment module, and the microlens array position adjustment module performs position adjustment according to the control instructions of the control module.

[0011] As a preferred technical solution of the present invention, the data analysis module is connected to a viewing angle expansion evaluation module, the viewing angle expansion angle measurement accuracy of the viewing angle expansion evaluation module is ±2°, and the viewing angle expansion evaluation module feeds back evaluation data to the data analysis module.

[0012] As a preferred technical solution of the present invention, the control module is connected to a liquid crystal molecule orientation control module, and the liquid crystal molecule orientation control module has an orientation angle adjustment range of 0-360°, and the orientation angle adjustment range of 0-360° is used to control the orientation of liquid crystal molecules.

[0013] As a preferred technical solution of the present invention, the optical detection module is connected to the brightness uniformity monitoring module, and the brightness uniformity monitoring module is used to monitor the brightness uniformity of different areas of the display screen. The brightness difference detection accuracy of the brightness uniformity monitoring module is ±5cd / m 2 .

[0014] As a preferred technical solution of the present invention, the data analysis module is connected to a color calibration module, and the color calibration module performs a calibration operation according to the result of the data analysis module. The data analysis module is connected to a grayscale accuracy detection module, and the grayscale accuracy detection module has a grayscale detection resolution of 256 levels, and the grayscale detection resolution of 256 levels sends the detection result to the data analysis module.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of the present invention: a microcontroller or a digital signal processor is used through the control module, and according to the result of the data analysis module, the parameters of the microlens array and the driving voltage of the liquid crystal layer are adjusted through the control circuit, or the position of the microlens array is changed through the microlens array position adjustment module, and the orientation of the liquid crystal molecules is controlled through the liquid crystal molecule orientation control module.

[0016] At the same time, the light incidence detection module detects the incidence of light and transmits the data to the data analysis module, the viewing angle expansion evaluation module evaluates the viewing angle expansion and feeds back to the data analysis module, the brightness uniformity monitoring module monitors the brightness uniformity of different areas of the display screen, the color calibration module calibrates according to the results of the data analysis module, and the grayscale accuracy detection module detects the grayscale accuracy and sends the result to the data analysis module, together to achieve comprehensive optimization of the optical performance of the LCD display screen.

[0017] By flexibly adjusting the microlens array spacing, liquid crystal layer driving voltage and liquid crystal molecular orientation, the problem of uneven brightness and limited viewing angle is effectively solved, providing a more uniform and broader visual experience. Through high-precision detection of light incidence, viewing angle expansion and brightness uniformity, as well as high-resolution grayscale accuracy detection and precise color calibration, it ensures that the display can present accurate and realistic images in various usage scenarios. The automation and intelligent operation of the entire optical optimization system greatly reduces manual intervention and improves production efficiency and product consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A brightness value data graph provided by the present invention;

[0019] Figure 2 A contrast data graph provided by the present invention;

[0020] Figure 3 A view angle data diagram provided by the present invention;

[0021] Figure 4 A brightness uniformity data graph provided by the present invention;

[0022] Figure 5 Color accuracy data graph provided by the present invention;

[0023] Figure 6 A grayscale accuracy data graph provided by the present invention;

[0024] Figure 7 A schematic diagram of the color filter structure provided by the present invention;

[0025] Figure 8 A schematic diagram of the microlens array structure provided by the present invention;

[0026] Fig. 9 A schematic diagram of the structure of the liquid crystal control chip provided by the present invention;

[0027] Fig.10 This is a schematic diagram of the structure of the polarizer provided by the present invention.

[0028] Indicated in the figure:

[0029] 1. LCD liquid crystal layer; 2. Upper polarizer; 3. Lower polarizer; 4. Color filter; 5. Microlens array; 6. Glass substrate; 7. Liquid crystal control chip; 8. Display driver circuit board; 9. Diffusion layer. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0031] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but only represents some embodiments of the present invention. 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. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments are combined with each other. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] Example 1: Please refer to Figure 1 - Fig.10 , an LCD display screen based on a microlens array, including a liquid crystal layer, an LCD liquid crystal layer 1 is located between an upper polarizer 2 and a lower polarizer 3, a color filter 4 is arranged on the light-emitting side of the liquid crystal layer, a microlens array 5 is arranged on the outer side of the color filter 4, the microlens array 5 is composed of a plurality of neatly arranged microlenses, each microlens is in the shape of a circle, a square or, the microlens array 5 is tightly attached to a glass substrate 6 through optical glue, and a liquid crystal control chip 7 is connected to a display driver circuit board 8 through a flexible circuit to receive and process display signals. The display driver circuit board 8 is connected to the pixel electrode and the common electrode through data lines and scanning lines respectively to control the arrangement of liquid crystal molecules, the pixel electrode and the common electrode sandwich the liquid crystal molecule layer to form a liquid crystal capacitor, and the deflection of the liquid crystal molecules is controlled by voltage, and a backlight module is arranged on the rear side of the LCD liquid crystal layer 1, and the backlight module is connected to the power management chip through a power line.

[0033] The lens diameter of the microlens array 5 is between 13 and 56 micrometers. The microlens array 5 is made of a high refractive index material, such as polycarbonate or glass.

[0034] A diffusion layer 9 is disposed outside the color filter 4 . The diffusion layer 9 has a thickness of 2 micrometers to 12 micrometers. The diffusion layer 9 is made of a polymer material with high light transmittance, and the polymer material includes polymethyl methacrylate (PMMA).

[0035] The microlens array 5 can improve the light extraction efficiency of the display screen, enhance the brightness and contrast, and provide a clearer and more vivid image display effect. Selecting a high refractive index material to make the microlens array 5, such as polycarbonate or glass, helps to further optimize the optical performance and improve the transmission and focusing effect of light.

[0036] The diffusion layer 9 can distribute the light more evenly, reduce light spots and shadows, and improve the uniformity of display and visual comfort. The setting of the color filter 4 can achieve rich color display and bring a more realistic visual experience to the user. The connection method between the liquid crystal control chip 7 and the display driver circuit board 8, as well as the precise control of the arrangement of liquid crystal molecules, can ensure accurate display and fast response of the image.

[0037] When the power management chip supplies power to the backlight module through the power line, the backlight module emits light. The light passes through the LCD liquid crystal layer 1, and the liquid crystal molecules are deflected under the voltage control of the liquid crystal capacitor formed by the pixel electrode and the common electrode, thereby modulating the light. The light modulated by the liquid crystal layer passes through the color filter 4 to achieve color selection. The diffusion layer 9 outside the color filter 4 makes the light evenly distributed. Then, the light reaches the microlens array 5, and a plurality of neatly arranged microlenses focus and refract the light to improve the light output efficiency and uniformity. Finally, the processed light passes through the glass substrate 6 to present a clear and bright image. The liquid crystal control chip 7 receives and processes the display signal through the flexible circuit, and the display drive circuit board 8 is connected to the pixel electrode and the common electrode through the data line and the scanning line respectively, so as to realize the precise control of the arrangement of the liquid crystal molecules, thereby completing the image display process of the entire display screen.

[0038] Embodiment 2: An optical optimization system for an LCD display screen based on a microlens array, comprising an optical detection module, a data analysis module and a control module; the optical detection module uses a brightness meter, a contrast meter and a viewing angle measurement to detect the optical parameters of the LCD display screen, and transmits the detection data to the data analysis module to analyze and process the received data, and compare the received data with the preset standard parameters to determine the parameters that need to be optimized; when the detected brightness unevenness exceeds a set threshold, the data analysis module will determine that the spacing of the microlens array 5 or the driving voltage of the liquid crystal layer needs to be adjusted, and the control module adjusts the parameters of the microlens array 5 and the driving voltage of the liquid crystal layer through a control circuit according to the results of the data analysis module; the control module is implemented by a microcontroller or a digital signal processor.

[0039] The data analysis module is connected to the light incident detection module, which transmits the detection data to the data analysis module. The light incident detection module has a light intensity range of 0-10000 lux and an angle detection accuracy of ±1°. The control module is connected to the microlens array 5 position adjustment module, which adjusts the position according to the control instructions of the control module.

[0040] The data analysis module is connected to the viewing angle extension evaluation module. The viewing angle extension evaluation module has a viewing angle measurement accuracy of ±2°. The viewing angle extension evaluation module feeds back the evaluation data to the data analysis module.

[0041] The control module is connected to the liquid crystal molecule orientation control module. The liquid crystal molecule orientation control module has an orientation angle adjustment range of 0-360°. The orientation angle adjustment range of 0-360° is used to control the orientation of the liquid crystal molecules.

[0042] The optical detection module is connected to the brightness uniformity monitoring module, which is used to monitor the brightness uniformity of different areas of the display screen. The brightness difference detection accuracy of the brightness uniformity monitoring module is ±5cd / m 2 .

[0043] The data analysis module is connected to the color calibration module, and the color calibration module performs calibration operations according to the results of the data analysis module. The data analysis module is connected to the grayscale accuracy detection module, and the grayscale accuracy detection module has a grayscale detection resolution of 256 levels. The grayscale detection resolution of 256 levels sends the detection results to the data analysis module.

[0044] The substrate of the microlens array 5 is tightly attached to the glass substrate 6 through optical glue. The liquid crystal control chip 7 is connected to the display driver circuit board 8 through a flexible circuit board to receive and process display signals. The display driver circuit board 8 is connected to the pixel electrode and the common electrode through data lines and scan lines respectively to control the arrangement of liquid crystal molecules. The backlight module is located on the back side of the LCD display screen, providing light source for the entire display, and is connected to the power management chip through a power line. The optical film layer is attached to the top of the liquid crystal molecule layer, and the color filter 4 is located in the optical film layer. The pixel electrode and the common electrode sandwich the liquid crystal molecule layer to form a liquid crystal capacitor, and the deflection of the liquid crystal molecules is controlled by voltage. The polarizer is attached to both sides of the glass substrate 6 respectively to play the role of polarized light. The sealing frame glue seals the liquid crystal molecule layer between the glass substrates 6 to prevent liquid crystal leakage. The timing control chip is connected to the display driver circuit board 8 to ensure the accurate timing of the display signal. The power management chip is connected to the external power supply through the line and provides a stable power supply for each component of the entire display screen. The storage chip is connected to the image processing chip for storing and calling image data. The image processing chip is connected to the display driving circuit board 8 to process and optimize the input image signal. The microlens array 5 bracket fixes the microlens array 5 substrate to keep it in a stable position and posture.

[0045] By flexibly adjusting the spacing of the microlens array 5, the driving voltage of the liquid crystal layer and the orientation of the liquid crystal molecules, the problems of uneven brightness and limited viewing angle are effectively solved, providing a more uniform and wider visual experience.

[0046] Through high-precision detection of light incidence, viewing angle expansion and brightness uniformity, as well as high-resolution grayscale accuracy detection and precise color calibration, it is ensured that the display can present accurate and realistic images in various usage scenarios.

[0047] The automated and intelligent operation of the entire optical optimization system greatly reduces manual intervention and improves production efficiency and product consistency.

[0048] Working principle: The brightness meter, contrast meter, and viewing angle measurement device in the optical detection module detect the optical parameters of the LCD display screen and transmit the detection data to the data analysis module. After receiving these data, the data analysis module compares and analyzes them with the preset standard parameters. When the detected brightness unevenness exceeds the set threshold, or the incident angle and intensity of the light do not meet the requirements, the data analysis module determines the parameters that need to be optimized and adjusts the spacing of the microlens array 5 or the driving voltage of the liquid crystal layer.

[0049] The control module uses a microcontroller or a digital signal processor. According to the results of the data analysis module, the control circuit adjusts the parameters of the microlens array 5 and the driving voltage of the liquid crystal layer, or changes the position of the microlens array 5 through the microlens array 5 position adjustment module, and controls the orientation of the liquid crystal molecules through the liquid crystal molecule orientation control module.

[0050] At the same time, the light incidence detection module detects the incidence of light and transmits the data to the data analysis module, the viewing angle expansion evaluation module evaluates the viewing angle expansion and feeds back to the data analysis module, the brightness uniformity monitoring module monitors the brightness uniformity of different areas of the display screen, the color calibration module calibrates according to the results of the data analysis module, and the grayscale accuracy detection module detects the grayscale accuracy and sends the result to the data analysis module, together to achieve comprehensive optimization of the optical performance of the LCD display screen.

[0051] Experimental example

[0052] In order to verify the effect of the optical optimization system of the LCD display based on the microlens array 5, we selected three groups of unoptimized LCD display samples of the same model, marked as the first experimental group, the second experimental group, and the third experimental group respectively.

[0053] Experimental procedures

[0054] The first experimental group: no optimization treatment was performed and served as the control group.

[0055] The second experimental group: using the present optical optimization system, only adjusting the spacing of the microlens array 5.

[0056] The third experimental group: using the present optical optimization system, the pitch of the microlens array 5 and the driving voltage of the liquid crystal layer were adjusted simultaneously.

[0057] The following parameters were tested on the three sets of display screens:

[0058] 1. Brightness: Under the same ambient lighting conditions, use a brightness meter to measure the brightness of the center and four corners of the display. Unit: cd / m 2 .

[0059] Display screen group Center brightness Upper left corner brightness Upper right corner brightness Lower left corner brightness Lower right corner brightness The first experimental group 500 450 460 430 440 The second experimental group 550 520 530 500 510 The third experimental group 600 580 590 560 570

[0060] 2. Contrast: Use a contrast meter to measure the contrast value of the display.

[0061] Display screen group Contrast The first experimental group 1000:1 The second experimental group 1200:1 The third experimental group 1500:1

[0062] 3. Viewing angle: Measure the brightness attenuation of the display at different angles in the horizontal and vertical directions to evaluate the viewing angle expansion unit: degree.

[0063] Display screen group Horizontal viewing angle Vertical viewing angle The first experimental group 120 100 The second experimental group 140 120 The third experimental group 160 140

[0064] 4. Brightness uniformity: The brightness difference of different areas of the display screen is measured through the brightness uniformity monitoring module. Unit: cd / m 2 .

[0065] Display screen group Maximum brightness difference The first experimental group 70 The second experimental group 50 The third experimental group 30

[0066] 5. Color accuracy: Use a professional color analyzer to measure the color deviation value ΔE of the display.

[0067]

[0068]

[0069] 6. Grayscale accuracy: The grayscale accuracy detection module is used to measure the brightness accuracy of the display at different grayscales.

[0070] Display screen group Grayscale accuracy % The first experimental group 85 The second experimental group 90 The third experimental group 95

[0071] Experimental results analysis

[0072] From the above data, it can be seen that the first experimental group without optimization performed poorly in various parameters. The second experimental group improved the brightness, contrast, viewing angle, brightness uniformity, color accuracy and grayscale accuracy to a certain extent by adjusting the spacing of the microlens array 5. The third experimental group adjusted the spacing of the microlens array 5 and the driving voltage of the liquid crystal layer at the same time, and the optimization effect of various parameters was more significant, which was significantly better than the first and second experimental groups.

[0073] This fully proves that the optical optimization system of the LCD display based on the microlens array 5 can effectively improve the optical performance of the LCD display and bring better visual experience to users.

[0074] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An LCD display screen based on a microlens array, comprising a liquid crystal layer, characterized in that: The LCD liquid crystal layer (1) is located between an upper polarizing plate (2) and a lower polarizing plate (3); a color filter (4) is arranged on the light-emitting side of the liquid crystal layer; a microlens array (5) is arranged outside the color filter (4); the microlens array (5) is composed of a plurality of neatly arranged microlenses; each microlens is in the shape of a circle, a square or a circle; the microlens array (5) is tightly attached to a glass substrate (6) via optical glue; and a liquid crystal control chip (7) is connected to a display drive circuit board (8) via a flexible circuit.

2. The LCD display screen based on a microlens array according to claim 1, characterized in that: The display driving circuit board (8) is connected to the pixel electrode and the common electrode respectively through the data line and the scanning line to control the arrangement of the liquid crystal molecules. The pixel electrode and the common electrode sandwich the liquid crystal molecule layer to form a liquid crystal capacitor, and the deflection of the liquid crystal molecules is controlled by voltage. A backlight module is arranged on the rear side of the LCD liquid crystal layer (1), and the backlight module is connected to the power management chip through a power line.

3. The LCD display screen based on a microlens array according to claim 2, characterized in that: The lens diameter of the microlens array (5) is between 13 and 56 micrometers. The microlens array (5) is made of a high refractive index material, which includes polycarbonate or glass.

4. The LCD display screen based on a microlens array according to claim 3, characterized in that: A diffusion layer (9) is arranged outside the color filter (4); the diffusion layer (9) has a thickness parameter of 2 micrometers to 12 micrometers; the diffusion layer (9) is made of a polymer material with high light transmittance; the polymer material includes polymethyl methacrylate (PMMA).

5. An optical optimization system for LCD display screen based on microlens array, characterized in that: The invention comprises an optical detection module, a data analysis module and a control module; the optical detection module uses a brightness meter, a contrast meter and a viewing angle measurement to detect the optical parameters of an LCD display screen, and transmits the detection data to the data analysis module for analysis and processing of the received data, and compares the received data with preset standard parameters to determine the parameters that need to be optimized; when the detected brightness unevenness exceeds a set threshold, the data analysis module determines that the spacing of a microlens array (5) or the driving voltage of a liquid crystal layer needs to be adjusted, and the control module adjusts the parameters of the microlens array (5) and the driving voltage of the liquid crystal layer through a control circuit according to the result of the data analysis module; the control module is implemented by a microcontroller or a digital signal processor.

6. The optical optimization system of an LCD display screen based on a microlens array according to claim 5, characterized in that: The data analysis module is connected to the light incidence detection module, and the light incidence detection module transmits the detection data to the data analysis module. The light incidence detection module has a light intensity range of 0-10000 lux and an angle detection accuracy of ±1°. The control module is connected to the microlens array (5) position adjustment module, and the microlens array (5) position adjustment module performs position adjustment according to the control instruction of the control module.

7. The optical optimization system of an LCD display screen based on a microlens array according to claim 6, characterized in that: The data analysis module is connected to the viewing angle extension evaluation module. The viewing angle extension evaluation module has a viewing angle expansion angle measurement accuracy of ±2°. The viewing angle extension evaluation module feeds back evaluation data to the data analysis module.

8. The optical optimization system of an LCD display screen based on a microlens array according to claim 7, characterized in that: The control module is connected to a liquid crystal molecule orientation control module. The liquid crystal molecule orientation control module has an orientation angle adjustment range of 0-360°. The orientation angle adjustment range of 0-360° is used to control the orientation of liquid crystal molecules.

9. The optical optimization system of an LCD display screen based on a microlens array according to claim 8, characterized in that: The optical detection module is connected to the brightness uniformity monitoring module, which is used to monitor the brightness uniformity of different areas of the display screen. The brightness difference detection accuracy of the brightness uniformity monitoring module is ±5cd / m 2 .

10. The optical optimization system of a LCD display screen based on a microlens array according to claim 9, characterized in that: The data analysis module is connected to the color calibration module, and the color calibration module performs a calibration operation according to the result of the data analysis module. The data analysis module is connected to the grayscale accuracy detection module.

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