Environment light sensing based electrically controlled self-adaptive anti-glare display film layer and display device

Abstract

The application discloses an electrically controlled self-adaptive anti-reflection display film layer based on ambient light sensing and a display device applying the display film layer. The display film layer comprises, in sequence along a light-out direction, a surface protection layer, an electrically controlled light modulation layer, an optical transparent adhesive layer, a substrate support layer and a bonding fixing layer. The electrically controlled light modulation layer has a fogging anti-reflection mode and a transparent high-definition mode. The display film layer further comprises an ambient light sensor, a control circuit board and a power supply interface. The control circuit board controls the on-off of the power supply interface according to the ambient light intensity. When the power supply interface is turned on, the electrically controlled light modulation layer is in the transparent high-definition mode. When the power supply interface is turned off, the electrically controlled light modulation layer is in the fogging anti-reflection mode. The application enables the display film layer to automatically switch between the high-transparent high-definition mode and the fogging anti-reflection mode according to the ambient light intensity, eliminates the mirror reflection and glare under strong light, and ensures the screen brightness, definition and color non-degradation under dark light. Moreover, the display film layer has a super-thin structure, fast response speed and low power consumption.

Description

Technical Field

[0001] This application belongs to the field of optical film technology for display devices, specifically relating to an electro-controlled optical display film that can automatically switch between light transmission and anti-reflection states according to the ambient light intensity, and a display device containing the display film. Background Technology

[0002] With the rapid development of display technology, display devices have been widely used in homes, offices, and public spaces. However, in actual use, display screens are prone to specular reflection and glare under strong light, direct sunlight, or high ambient light conditions, causing blurry and glaring images that severely impact the viewing experience and visual health.

[0003] Currently, the industry commonly uses physical frosted anti-reflective films and AG anti-glare films to solve the reflection problem. However, these types of films have obvious defects: they reduce screen transmittance and clarity, resulting in a foggy image, significant brightness loss, and reduced color reproduction when viewed in low-light or dim light environments; they cannot dynamically adjust according to the intensity of ambient light, making it impossible for users to simultaneously meet the needs of anti-reflective in strong light and high-definition display in low light; moreover, these films have limited functionality and lack intelligent adaptive adjustment capabilities, failing to meet the intelligent and scenario-based usage needs of high-end display devices.

[0004] Therefore, developing an optical film that can automatically switch between high transmittance mode and anti-reflective mode according to ambient light without sacrificing image quality, and that is thin, lightweight, and easy to integrate has become a pressing technical problem in the current display device field. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this application provides an electronically controlled adaptive anti-reflective display film and display device based on ambient light sensing, achieving the following objectives: 1. Enables the display film to automatically switch between high transparency / high definition mode and fogging / anti-reflective mode according to the ambient light intensity; 2. Eliminate specular reflections and glare under strong light, while ensuring that the screen brightness, clarity, and color do not degrade under low light; 3. It features an ultra-thin structure, fast response speed, and low power consumption, and can be directly bonded to existing LCD and OLED display panels, compatible with conventional display device manufacturing processes.

[0006] To address the aforementioned technical problems, this application provides an electronically controlled adaptive anti-reflective display film layer based on ambient light sensing, employing the following technical solution: An electronically controlled adaptive anti-reflective display film based on ambient light sensing is disclosed. The display film, along the light emission direction, sequentially comprises a surface protective layer, an electronically controlled dimming layer, an optically transparent adhesive layer, a substrate support layer, and a bonding and fixing layer. The electronically controlled dimming layer has a fogging anti-reflective mode and a transparent high-definition mode. The display film also includes an ambient light sensor, a control circuit board, and a power supply interface. The power supply interface connects to the electronically controlled dimming layer and is used to supply power to the display film layer; An ambient light sensor is connected to a control circuit board to collect ambient light intensity and send the ambient light intensity to the control circuit board. The control circuit board is connected to the power supply interface and is used to control the on / off state of the power supply interface according to the ambient light intensity. When the power supply interface is on, the electronically controlled dimming layer is in transparent high-definition mode; When the power supply interface is disconnected, the electronically controlled dimming layer enters a fogging anti-reflective mode.

[0007] Furthermore, when the ambient light intensity is less than or equal to a preset light intensity threshold, the power supply interface is turned on; The power supply interface is disconnected when the ambient light intensity exceeds the preset light intensity threshold.

[0008] Furthermore, the preset light intensity thresholds include a first light intensity threshold and a second light intensity threshold. The electronically controlled dimming layer also has a semi-transparent micro-mist transition mode. When the ambient light intensity is greater than the first light intensity threshold, the power supply interface is disconnected, and the electronically controlled dimming layer enters the fogging anti-reflective mode. When the ambient light intensity is greater than the second light intensity threshold and less than or equal to the first light intensity threshold, the power supply interface uses pulse voltage regulation to supply power to the electronically controlled dimming layer, and the electronically controlled dimming layer enters the semi-transparent micro-mist transition mode. When the ambient light intensity is less than or equal to the second light intensity threshold, the power supply interface uses full voltage to supply power to the electronically controlled dimming layer, and the electronically controlled dimming layer enters the transparent high-definition mode.

[0009] Furthermore, the thickness of the film layer is shown to be 0.2-0.34 mm.

[0010] Furthermore, the electrochromic dimming layer is a polymer-dispersed liquid crystal (PDLC) layer or an electrochromic micro-scattering layer. When the electrochromic dimming layer is powered on, the molecules are arranged in an orderly manner and exhibit high transparency. When the power is off, the molecules are randomly distributed and exhibit a fogging and scattering state.

[0011] Furthermore, the thickness of the electronically controlled dimming layer is 0.06-0.1 mm, the visible light transmittance of the electronically controlled dimming layer is 93.5%-95.5%, and the specular reflectivity of the electronically controlled dimming layer is 0.7%-0.9%.

[0012] Furthermore, the surface protective layer is a tempered coating with a thickness of 0.03-0.06 mm and a visible light transmittance of 93%-95%. The optically transparent adhesive layer is made of OCA optical adhesive, with a thickness of 0.04-0.06 mm and a visible light transmittance of 97.2%-99.2%. The substrate support layer is made of PET substrate, with a thickness of 0.05-0.08 mm and a visible light transmittance of 93.5%-95.5%. The bonding and fixing layer is a traceless double-sided adhesive, with a thickness of 0.02-0.04mm and a visible light transmittance of 96.5%-98.5%.

[0013] Furthermore, the ambient light sensor and control circuit board are located in the edge area of ​​the display film and are electrically connected to the display film. The power supply interface is connected to the display film via a flexible circuit.

[0014] To address the aforementioned technical problems, this application also provides a display device that employs the following technical solution: A display device includes an electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described above. The display device also includes a display panel, a backlight module or self-emissive pixel layer, and a main control system, wherein: The display film is bonded to the outermost light-emitting surface of the display panel; The backlight module or self-emissive pixel layer is attached to the other side of the display panel opposite to the display film layer; The main control system is connected to the display film layer via communication.

[0015] Furthermore, when the ambient light intensity is determined to be less than or equal to a preset light intensity threshold, the control circuit board controls the power supply interface to be turned on. When the ambient light intensity is determined to be greater than the preset light intensity threshold, the control circuit disconnects the power supply interface.

[0016] Compared with the prior art, the embodiments of this application have the following main advantages: This application discloses an electronically controlled adaptive anti-reflective display film based on ambient light sensing and a display device using the display film. The display film includes, in sequence along the light emission direction, a surface protective layer, an electronically controlled dimming layer, an optically transparent adhesive layer, a substrate support layer, and an adhesive bonding layer. The electronically controlled dimming layer has a fogging anti-reflective mode and a transparent high-definition mode. The display film also includes an ambient light sensor, a control circuit board, and a power supply interface. The power supply interface is connected to the electronically controlled dimming layer and is used to supply power to the display film. The ambient light sensor is connected to the control circuit board and is used to collect the ambient light intensity and send the ambient light intensity to the control circuit board. The control circuit board is connected to the power supply interface and is used to control the on / off state of the power supply interface according to the ambient light intensity. When the power supply interface is on, the electronically controlled dimming layer is in transparent high-definition mode; when the power supply interface is off, the electronically controlled dimming layer is in fogging anti-reflective mode. This application enables the display film layer to automatically switch between a high-transparency, high-definition mode and a fogging, anti-reflective mode according to the ambient light intensity, eliminating specular reflection and glare under strong light, while ensuring that the screen brightness, clarity, and color do not degrade under low light. Furthermore, the display film layer has an ultra-thin structure, fast response speed, and low power consumption, and can be directly bonded to existing LCD and OLED display panels, and is compatible with conventional display device manufacturing processes. Attached Figure Description

[0017] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the electronically controlled adaptive anti-reflective display film based on ambient light sensing in an embodiment of this application is shown; Figure 2 A schematic diagram of the display device in an embodiment of this application is shown.

[0019] Reference numerals: 1-Display film layer; 11-Surface protective layer; 12-Electrically controlled dimming layer; 13-Optical transparent adhesive layer; 14-Substrate support layer; 15-Adhesive fixing layer; 16-Ambient light sensor; 17-Control circuit board; 18-Power supply interface; 10-Display device; 2-Display panel; 3-Backlight module or self-emissive pixel layer; 4-Main control system. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] Please refer to Figure 1 This application discloses an electronically controlled adaptive anti-reflective display film 1 based on ambient light sensing. The display film 1 includes, along the light emission direction, a surface protective layer 11, an electronically controlled dimming layer 12, an optically transparent adhesive layer 13, a substrate support layer 14, and an adhesive layer 15. The electronically controlled dimming layer 12 has a fogging anti-reflective mode and a transparent high-definition mode. The display film 1 also includes an ambient light sensor 16, a control circuit board 17, and a power supply interface 18. The power supply interface 18 is connected to the electronically controlled dimming layer 12 and is used to supply power to the display film 1. The ambient light sensor 16 is connected to the control circuit board 17 and is used to collect the ambient light intensity and send the ambient light intensity to the control circuit board 17. The control circuit board 17 is connected to the power supply interface 18 and is used to control the on / off state of the power supply interface 18 according to the ambient light intensity. When the power supply interface 18 is on, the electronically controlled dimming layer 12 is in transparent high-definition mode; when the power supply interface 18 is off, the electronically controlled dimming layer 12 is in fogging anti-reflective mode.

[0023] Furthermore, the electrically controlled dimming layer 12 is a polymer-dispersed liquid crystal (PDLC) layer or an electrochromic micro-scattering layer. When the electrically controlled dimming layer 12 is powered on, the molecules are arranged in an orderly manner, exhibiting high transparency. When the power is off, the molecules are randomly distributed, exhibiting a fogged scattering state. When the ambient light intensity is less than or equal to a preset light intensity threshold, the power supply interface 18 is turned on; when the ambient light intensity is greater than the preset light intensity threshold, the power supply interface 18 is turned off.

[0024] When the ambient light intensity is greater than the preset light intensity threshold (strong light / direct sunlight): the control circuit board 17 disconnects the power supply to the control circuit, and the electronically controlled dimming layer 12 enters the atomization anti-reflection mode to eliminate mirror glare through diffuse reflection.

[0025] When the ambient light intensity is less than or equal to the preset light intensity threshold (weak light / dark light / night): the control circuit of the control circuit board 17 is powered on, the electronic dimming layer 12 enters the high transparency and high definition mode, and the screen brightness, clarity and color reproduction reach the optimal state.

[0026] For example, in one specific embodiment, the light intensity threshold is 3000 lux. When the ambient light sensor collects an intensity greater than 3000 lux, the electrically controlled dimming layer 12 is de-energized and enters the atomized anti-reflective mode, with a linear transmittance of 72% to 78%. When the ambient light intensity is less than or equal to 3000 lux, the electrically controlled dimming layer 12 is energized and enters the high transparency and high-definition mode, with a linear transmittance of ≥92%.

[0027] In another specific embodiment, the light intensity threshold is a two-level threshold, namely, a first light intensity threshold and a second light intensity threshold are set. The first light intensity threshold is 3000 lux, and the second light intensity threshold is 100 lux. When the ambient light sensor collects an intensity greater than 3000 lux, the electronically controlled dimming layer 12 is powered off and enters the atomization anti-reflective mode. When the ambient light sensor collects an intensity greater than 100 lux and less than or equal to 3000 lux, the electronically controlled dimming layer 12 uses pulse voltage regulation and enters the semi-transparent micro-mist transition mode. When the ambient light sensor collects an intensity less than or equal to 100 lux, the electronically controlled dimming layer 12 uses full voltage power and enters the fully transparent high-definition mode.

[0028] In this embodiment, when the display film layer 1 is not powered, the electronically controlled dimming layer 12 exhibits a hazy scattering state. This can eliminate the specular reflection and glare problems caused by the light-emitting surface of the display panel under strong light through diffuse reflection, without changing the original color temperature of the emitted light, and without causing additional degradation of screen clarity and color saturation. After being powered on, the molecular arrangement of the electronically controlled dimming layer returns to order, and the overall high transparency is maintained. This does not have any additional impact on the display effect in low-light environments, achieving a dynamic balance between anti-reflective effect and display quality. At the same time, the thickness of each functional layer in the overall structure is precisely controlled, meeting the requirements of existing display devices for ultra-thin film application. The integrated sensing and control module also does not require significant modification to the original display device structure, making it more adaptable.

[0029] When the display film layer 1 is powered on, the electronically controlled dimming layer 12 is in a highly transparent state, allowing light to pass directly through each functional layer without additional scattering or attenuation. This preserves the brightness, color saturation, and detail clarity of the display panel output to the greatest extent, allowing users to still enjoy a clear and high-quality viewing experience in low-light environments without sacrificing the original display effect due to the anti-reflective structure.

[0030] In this embodiment, this application discloses an electronically controlled adaptive anti-reflective display film 1 based on ambient light sensing. The display film 1 includes, in sequence along the light emission direction, a surface protective layer 11, an electronically controlled dimming layer 12, an optically transparent adhesive layer 13, a substrate support layer 14, and an adhesive fixing layer 15. The electronically controlled dimming layer 12 has a fogging anti-reflective mode and a transparent high-definition mode. This application enables the display film to automatically switch between a high-transparency high-definition mode and a fogging anti-reflective mode according to the ambient light intensity, eliminating specular reflection and glare under strong light, while ensuring that the screen brightness, clarity, and color do not decrease under low light. Moreover, the display film structure is ultra-thin, has a fast response speed, and low power consumption, and can be directly bonded to existing LCD and OLED display panels, compatible with conventional display device manufacturing processes.

[0031] Furthermore, the overall thickness of the display film layer 1 ranges from 0.2 to 0.34 mm. This not only meets the narrow bezel and thin body design requirements of current ultra-thin display devices and large-screen smart screens, but also ensures the structural stability of each functional layer. It will not affect the scratch resistance and durability due to being too thin, nor will it increase the overall thickness and bonding difficulty due to being too thick.

[0032] If the overall thickness of the display film layer 1 is less than 0.2mm, the basic process thickness of the surface protective layer, the electro-dimming layer, the optical adhesive, and the supporting substrate needs to be compressed. This will result in uneven dispersion of PDLC liquid crystal, increased leakage current of the conductive layer, interlayer bonding bubbles and delamination, substrate warping and deformation, and failure of surface wear protection. At the same time, there is no space for the installation of integrated light-sensing circuitry at the edge of the film layer, making it impossible to achieve integrated intelligent sensing dimming.

[0033] If the overall thickness of the display film layer 1 exceeds 0.34mm, it will exceed the assembly gap of the front frame of the display terminal. During assembly, the squeezing will easily cause damage to the dimming layer and conductive circuit. In addition, the increased optical path of the dimming layer will cause a significant decrease in light transmittance, color distortion, and dimming response delay of more than 500ms. The increased rigidity and weight of the film layer will lead to defects such as delamination and damage from impacts. It is impossible to take into account both the structural design of the ultra-thin display device and the optical performance of adaptive dimming.

[0034] This application sets the overall thickness of the display film layer 1 to a range of 0.2-0.34mm. Under the premise of ensuring reliable mass production of each functional layer and fast and stable electronic control switching, it is compatible with the assembly of various flat and curved display panels. At the same time, it achieves controllable light transmission, haze and reflection optical indicators under three lighting conditions, solving the industry defects of existing external dimming films that are too thick and ultra-thin single-layer AG films that lack adaptive electronic control adjustment.

[0035] Furthermore, the thickness of the electronically controlled dimming layer 12 is 0.06-0.1mm, its visible light transmittance is 93.5%-95.5%, and its specular reflectance is 0.7%-0.9%. The electronically controlled dimming layer 12 exhibits uniform light transmission, a fast dimming response speed, and a single mode switching time of no more than 100ms. During use, there will be no issues with screen flickering or uneven brightness, thus not affecting the viewing experience. Simultaneously, within this thickness range, the anti-reflective atomization effect is guaranteed without additionally increasing the total thickness of the film, maintaining the ultra-thin characteristics of the overall structure.

[0036] The thickness of the electronically controlled dimming layer 12 is 0.06mm, which is the lower limit critical value. Below this thickness, the liquid crystal microcapsules are unevenly dispersed, the leakage current increases, the electric field distribution is disordered, and the light transmission consistency is poor. If the thickness exceeds 0.1mm, it will cause dimming response delay, light transmittance decay, and specular reflection increase, making it impossible to balance real-time adaptive dimming and high-definition display. The range of 0.06mm to 0.1mm can ensure uniform dispersion of liquid crystal, rapid electric field switching, and stable and controllable power consumption.

[0037] The lower limit of the power transmittance of the electronically controlled dimming layer 12, 93.5%, is reserved for optical loss in the multi-layer composite film structure to avoid insufficient total light transmittance after the entire film layer is bonded to the panel, which would lead to a significant decrease in screen brightness. The upper limit of the transmittance, 95.5%, is limited by the intrinsic light absorption of the PDLC substrate and ITO conductive layer. At the same time, this upper limit can retain a sufficient filling ratio of liquid crystal microcapsules to ensure the ability to scatter and eliminate reflections when the power is off, thus achieving a balance between performance in strong light and low light scenes.

[0038] The upper limit of the specular reflectivity of the electronically controlled dimming layer 12 when the power is off is 0.9%, which can ensure that the specular glare is completely eliminated under direct sunlight and strong light, which is better than the traditional AG anti-reflective film. The lower limit of the specular reflectivity is 0.7%, which is the inherent lower value of Fresnel reflection at the multi-layer interface. If it is forcibly reduced to below 0.7%, the liquid crystal filling amount needs to be greatly increased, which will cause a decrease in the transmittance when powered and a deterioration in the processing performance of the film layer.

[0039] The aforementioned ranges of thickness, visible light transmittance, and specular reflectivity are coupled and work synergistically to achieve the core invention effects of adaptive dimming, strong light anti-reflection, and lossless high-definition in low light. If any parameter deviates from this range, it will be impossible to meet all the usage requirements at the same time.

[0040] The electrically controlled dimming layer 12 employs either a polymer-dispersed liquid crystal (PDLC) layer or an electrochromic micro-scattering layer. PDLC is a composite functional material composed of a polymer matrix and dispersed liquid crystal droplets. The arrangement of the liquid crystal molecules can be rapidly controlled directly by applying an electric field. The material preparation process is mature, the cost is moderate, and it is suitable for large-scale mass production. Combined with the control logic of this invention, it can stably and accurately switch between two optical states, meeting the reliability requirements for long-term use of display terminals. The electrochromic micro-scattering layer is a functional layer composed of color-changing scattering particles and a polymer matrix. It achieves optical mode switching by controlling the arrangement and scattering state of the particles through an electric field. It features good stability and lower power consumption, meeting the requirements for long-term steady-state use. Both materials can achieve excellent adaptive dimming effects and can be flexibly selected according to the cost and performance requirements of different display terminals.

[0041] The two materials mentioned above have fast response speed and stable state. When combined with a miniature ambient light sensor and low-power control circuit, they only generate instantaneous power consumption during mode switching. When maintaining a steady state, they consume almost no additional power and will not significantly increase the overall power consumption of the display device, which meets the requirements of energy-saving design. At the same time, the two materials have stable chemical properties, good temperature and weather resistance, and will not experience optical performance degradation after long-term use. They can maintain the designed light transmission and anti-reflection effects stably for a long time, and their service life can meet the usage requirements of terminal products, adapting to the service life requirements of various commercial and home display devices.

[0042] Furthermore, the surface protective layer 11 is a high-transparency PET tempered coating or a tempered coating, with a thickness of 0.03-0.06 mm and a visible light transmittance of 93%-95%; the optically transparent adhesive layer 13 is an OCA optical adhesive, with a thickness of 0.04-0.06 mm and a visible light transmittance of 97.2%-99.2%; the substrate support layer 14 is a PET substrate, with a thickness of 0.05-0.08 mm and a visible light transmittance of 93.5%-95.5%; and the bonding and fixing layer 15 is a traceless double-sided adhesive, with a thickness of 0.02-0.04 mm and a visible light transmittance of 96.5%-98.5%.

[0043] In this embodiment, the surface protective layer 11 is made of high-transparency PET material or tempered coating, which provides scratch-resistant, fingerprint-resistant, and oil-resistant protection for the film layer, extending its service life. The electro-dimming layer 12 is made of polymer-dispersed liquid crystal (PDLC) layer or electrochromic micro-scattering layer, which switches between two optical modes by changing the molecular arrangement state, with a fast response speed, completing mode switching in milliseconds. The optically transparent adhesive layer 13 is made of OCA optical adhesive, ensuring that there are no air bubbles between the layers while maintaining the overall high light transmittance. The substrate support layer 14 is made of high-transparency PET substrate, ensuring the overall flatness and bending resistance of the film layer, facilitating transportation and on-site bonding operations. The bonding and fixing layer 15 can achieve stable bonding between the film layer and the light-emitting surface of the display panel, and supports disassembly without leaving any adhesive residue on the panel surface after disassembly, thus not damaging the panel appearance. The total thickness of the entire display film layer is controlled between 0.2mm and 0.34mm, which can adapt to the structural design requirements of ultra-thin display devices without increasing the overall thickness of the device, and is suitable for the design needs of various display products.

[0044] Furthermore, the ambient light sensor 16 and the control circuit board 17 are located at the edge of the display film layer 1 and are electrically connected to it. The power supply interface 18 is connected to the display film layer 1 via a flexible circuit. This eliminates the need for additional internal space in the display device or a separate installation location on the display panel module; the film layer can be directly integrated into the side or corner, without obstructing the display or altering the original internal structure of the display device. It aligns with existing mass production processes, reducing modification costs and integration difficulty. The entire film layer can be directly attached as an external accessory to the finished display panel or integrated into the display device's structure during the overall manufacturing process, adapting to different application scenarios.

[0045] In this embodiment, the electronically controlled adaptive anti-reflective display film based on ambient light sensing has at least the following beneficial effects: 1. Intelligent adaptive switching: Automatic anti-reflective function in strong light and automatic high-definition display in low light, completely solving the image quality loss problem of traditional anti-reflective films; 2. Excellent optical performance: Light transmittance ≥92% in transparent state, specular reflectance ≤1.5% in frosted state, with significant anti-glare effect; 3. Ultra-thin structure for easy integration: Total thickness ≤ 0.3mm, does not increase the overall thickness of the display device, and can be directly bonded to composite panels; 4. Low power consumption and long lifespan: It only consumes power during state transitions, consumes almost no power in steady state, and has a lifespan of ≥50,000 hours; 5. High versatility: Applicable to various display devices such as LCD, OLED, and MiniLED, and compatible with existing production processes.

[0046] It should be noted that the core film structure and control logic of this application are universal for different display types such as LCD, OLED, and MiniLED. Only the parameter range will be slightly adjusted according to different display principles, without changing the overall framework: For LCD display devices, because the light emitted passes through multiple polarization and light guide structures, the total light transmission loss space is larger. This solution can appropriately widen the control range of the total light transmittance of the film layer, and at the same time adjust the adhesion of the bonding and fixing layer to match the surface hardness of the LCD glass panel to ensure long-term adhesion without delamination; For OLED display devices, because of their self-emissive characteristics and the fact that the surface is mostly a relatively soft polarizer, this solution will appropriately reduce the overall rigidity of the display film layer and adjust the hardness of the surface protective layer to avoid scratching the OLED surface due to excessive hardness. At the same time, the color coordinate offset control accuracy will be optimized to avoid affecting the wide color gamut performance of the OLED itself; For MiniLED display devices, because their screen brightness peak is higher, this solution will correspondingly increase the first light intensity threshold range, and further reduce the specular reflectivity in the fogging mode to better cope with the problem of strong light glare in high-brightness environments, and adapt to the outdoor and window-side usage scenarios of MiniLED large screens. The overall solution maintains the core structure and functions unchanged, and can be compatible with different display technologies by only adapting a small range of parameters, without the need for major design adjustments.

[0047] See Figure 2 This embodiment discloses a display device 10, which includes an electronically controlled adaptive anti-reflective display film layer 1 based on ambient light sensing as described above. The display device 10 also includes a display panel 2, a backlight module or self-emissive pixel layer 3, and a main control system 4. The display film layer 1 is attached to the outermost light-emitting surface of the display panel 2; the backlight module or self-emissive pixel layer 3 is attached to the other side of the display panel 2 opposite to the display film layer 1; and the main control system 4 is communicatively connected to the display film layer 1.

[0048] The display device 10 collects ambient light intensity signals in real time through an ambient light sensor. The main control system can automatically output control commands based on preset thresholds to drive the display film to complete mode switching. It can also provide a manual adjustment entry to allow users to adjust the light intensity threshold according to their own usage habits, adapting to the viewing needs of different scenarios. After integrating the electronically controlled adaptive anti-reflective display film into the display device, it can automatically match the optimal optical state whether it is in direct sunlight in the living room during the day or in the dark at night. This solves the problems of unclear image reflection and poor viewing experience in strong light environments, and avoids the image quality degradation caused by traditional fixed anti-reflective films in low light environments. It allows the display device to output the best image effect in various lighting environments. At the same time, it does not require modification to the core structure of the existing display panel. Mass production can be completed by only adding a film bonding process, which has low modification costs and strong adaptability.

[0049] Furthermore, when the ambient light intensity is determined to be less than or equal to a preset light intensity threshold, the control circuit board 17 controls the power supply interface 18 to be turned on; when the ambient light intensity is determined to be greater than the preset light intensity threshold, the control circuit board 17 controls the power supply interface 18 to be turned off. By controlling the on / off state of the power supply interface 18, adaptive control of the display film layer 1 is achieved. In addition, this display device retains all the advantages of the display film layer itself, possessing the characteristics of ultra-thinness, low power consumption, long lifespan, and strong versatility. It can adapt to display products of various sizes and technologies, providing users with a more comfortable all-day viewing experience.

[0050] Furthermore, the display panel can be an LCD panel, an OLED panel, or a MiniLED backlight module, and can be appropriately fitted to display devices of various sizes. It can effectively solve the problem of reflection in strong light environments in various existing display terminals, while not sacrificing the display quality in low light environments. It has a high overall cost performance and is suitable for large-scale promotion and application.

[0051] In specific embodiments of this application, the main control system 4 can be used to perform hardware compensation for adjustable parameters such as synchronous brightness gain, contrast coefficient, and saturation of the display device 10. For example, in the fogging anti-reflective mode, the screen actively brightens and increases contrast and saturation to offset the slight optical loss of the film layer itself, avoiding the problem of graying or whitening of the image; in the high transparency and high definition mode, no additional compensation is required, and the original optimal image quality of the display panel can be directly preserved; in the semi-transparent micro-fog transition mode, a compromise pulse voltage regulation method is adopted, which provides slight brightness, contrast, and saturation compensation while taking into account both anti-reflective effect and image detail, so that the viewing experience under different lighting scenarios can be optimized. Through the cooperation of this compensation logic and adaptive dimming mode, the display effect in all scenarios is further improved, giving full play to the performance advantages of the electronically controlled adaptive film layer.

[0052] In this embodiment, this application discloses a display device 10, which integrates an electronically controlled adaptive anti-reflective display film layer 1 based on ambient light sensing. The optical mode of the display film layer can be automatically switched according to the ambient light intensity. In strong light environment, the fogging anti-reflective mode is automatically activated to eliminate mirror glare, and in low light environment, the transparent high-definition mode is automatically switched to ensure the display quality. This solves the pain points of traditional display devices in strong light environment, such as glare and difficulty in seeing the picture, and avoids the long-term image quality degradation problem of fixed anti-reflective structures. It achieves the optimal viewing experience in all lighting scenarios. At the same time, the overall modification cost is low, the structure is ultra-thin and adaptable to existing product designs, it is compatible with various display technology routes, and the mass production difficulty is low, making it suitable for large-scale promotion and application.

[0053] In one specific embodiment of this application, taking an OLED display panel as an example, the display film layer 1 is attached to the outer side of the OLED panel, and the ambient light sensor is connected to the TV motherboard. The TV system can automatically adjust the film layer state according to the scene mode, realizing one-click switching between viewing mode, eye protection mode, and strong light mode. It can also automatically trigger mode switching according to changes in ambient light, eliminating the need for users to manually and repeatedly adjust display parameters, making it more convenient and worry-free to use. Reflective glare is effectively eliminated under strong light, and image details are clearly discernible. Under low light, the image is transparent and full, with accurate color reproduction, fully leveraging the self-emissive and high-contrast image quality advantages of the OLED panel, providing users with a more comfortable all-day viewing experience.

[0054] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. An electronically controlled adaptive anti-reflective display film based on ambient light sensing, characterized in that, The display film layer, along the light emission direction, sequentially includes a surface protective layer, an electronically controlled dimming layer, an optically transparent adhesive layer, a substrate support layer, and an bonding and fixing layer. The electronically controlled dimming layer has a fogging anti-reflective mode and a transparent high-definition mode. The display film layer also includes an ambient light sensor, a control circuit board, and a power supply interface, wherein: The power supply interface is connected to the electronically controlled dimming layer and is used to supply power to the display film layer; The ambient light sensor is connected to the control circuit board and is used to collect ambient light intensity and send the ambient light intensity to the control circuit board; The control circuit board is connected to the power supply interface and is used to control the on / off state of the power supply interface according to the ambient light intensity. When the power supply interface is turned on, the electronically controlled dimming layer is in the transparent high-definition mode; When the power supply interface is disconnected, the electronically controlled dimming layer is in the atomized anti-reflective mode.

2. The electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in claim 1, characterized in that, When the ambient light intensity is less than or equal to a preset light intensity threshold, the power supply interface is turned on; When the ambient light intensity is greater than a preset light intensity threshold, the power supply interface is disconnected.

3. The electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in claim 2, characterized in that, The preset light intensity thresholds include a first light intensity threshold and a second light intensity threshold. The electronically controlled dimming layer also has a semi-transparent micro-mist transition mode. When the ambient light intensity is greater than the first light intensity threshold, the power supply interface is disconnected, and the electronically controlled dimming layer enters the fogging anti-reflective mode. When the ambient light intensity is greater than the second light intensity threshold and less than or equal to the first light intensity threshold, the power supply interface supplies power to the electronically controlled dimming layer using pulse voltage regulation, and the electronically controlled dimming layer enters the semi-transparent micro-mist transition mode. When the ambient light intensity is less than or equal to the second light intensity threshold, the power supply interface supplies power to the electronically controlled dimming layer using full voltage, and the electronically controlled dimming layer enters the transparent high-definition mode.

4. The electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in claim 1, characterized in that, The thickness of the display film is 0.2-0.34 mm.

5. The electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in claim 4, characterized in that, The electrochromic dimming layer is a polymer-dispersed liquid crystal (PDLC) layer or an electrochromic micro-scattering layer. When the electrochromic dimming layer is powered on, the molecules are arranged in an orderly manner and exhibit high transparency. When the power is off, the molecules are randomly distributed and exhibit a fogging and scattering state.

6. The electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in claim 5, characterized in that, The thickness of the electronically controlled dimming layer is 0.06-0.1 mm, the visible light transmittance of the electronically controlled dimming layer is 93.5%-95.5%, and the specular reflectivity of the electronically controlled dimming layer is 0.7%-0.9%.

7. The electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in claim 4, characterized in that, The surface protective layer is a tempered coating with a thickness of 0.03-0.06 mm and a visible light transmittance of 93%-95%. The optically transparent adhesive layer is OCA optical adhesive, the thickness of the optically transparent adhesive layer is 0.04-0.06 mm, and the visible light transmittance of the optically transparent adhesive layer is 97.2%-99.2%. The substrate support layer is a PET substrate, the thickness of the substrate support layer is 0.05-0.08 mm, and the visible light transmittance of the substrate support layer is 93.5%-95.5%. The bonding and fixing layer is a traceless double-sided adhesive, the thickness of the bonding and fixing layer is 0.02-0.04mm, and the visible light transmittance of the bonding and fixing layer is 96.5%-98.5%.

8. The electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in claim 1, characterized in that, The ambient light sensor and the control circuit board are disposed in the edge region of the display film and are electrically connected to the display film. The power supply interface is connected to the display film via a flexible circuit.

9. A display device, characterized in that, The display device includes an electronically controlled adaptive anti-reflective display film layer based on ambient light sensing as described in any one of claims 1-7, and the display device further includes a display panel, a backlight module or a self-emissive pixel layer, and a main control system, wherein: The display film layer is bonded to the outermost light-emitting surface of the display panel; The backlight module or the self-emissive pixel layer is attached to the other side of the display panel opposite to the display film layer; The main control system is communicatively connected to the display film layer.

10. The display device as claimed in claim 9, characterized in that, When the ambient light intensity is determined to be less than or equal to a preset light intensity threshold, the control circuit board controls the power supply interface to be turned on. When the ambient light intensity is determined to be greater than a preset light intensity threshold, the control circuit board controls the power supply interface to disconnect.

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