Backlight module with U-shaped frame and pink reflective film
Patent Information
- Application Number
- CN202521438725.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-07-10
AI Technical Summary
[0005]本实用新型要解决的技术问题是根据上述技术的不足，提供一种U型边框贴装粉色反射膜的背光模组，该背光模组在LED上方及导光板左端上侧贴装粉色反射膜，粉色反射膜从上至下依次包括白色反射膜层、灰色油墨层和粉色油墨层，其中，白色反射膜层能够将散射或未被利用的光线高效反射回去；灰色油墨层具有50～75%的反射率，对所有可见光进行大致相同比例的吸收，均匀光线，改善灯口亮暗不均匀的现象；粉色油墨层能够中和LED发出的一部分发青、发黄的光线，避免在LED灯口位置出现发青、发黄的问题，赋予更暖、更舒适的光学效果
[0013]本实用新型的有益效果是：本实用新型背光模组由于在LED上方及导光板左端上侧贴装粉色反射膜，粉色反射膜的左端贴装于U型边框的顶边条下侧并位于LED的上方，粉色反射膜的右端贴装于导光板的左端上侧，粉色反射膜从上至下依次包括白色反射膜层、灰色油墨层和粉色油墨层，因此，第一方面，粉色反射膜中的白色反射膜层能够将散射或未被利用的光线高效反射回去；第二方面，在白色反射膜层的下侧设灰色油墨层，能够避免粉色油墨层直接涂覆于白色反射膜层下侧，当粉色油墨层直接涂覆于白色反射膜层下侧时，由于白色反射膜层反光太强、涂覆于白色反射膜层下侧的粉色油墨容易过量，混合出来的光线直接是粉色的，通过调整粉色油墨的比例浓度，无法直接改善粉色过量的问题，因此，本实用新型将灰色油墨层设于白色反射膜层的下侧，灰色油墨层能够不让白色反射膜层反射太亮太强的光线，具有50～75%的反射率，能够通过灰色油墨梯度控制反射率，灰色油墨层对所有可见光进行大致相同比例的吸收，均匀光线，改善灯口亮暗不均匀的现象；第三方面，粉色油墨层设于灰色油墨层的下侧，粉色油墨层能够中和LED发出的一部分发青、发黄的光线，避免在LED灯口位置出现发青、发黄的问题，赋予更暖、更舒适的光学效果。
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Figure CN224840716U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of backlight module technology, and in particular to a backlight module with a pink reflective film attached to a U-shaped frame. Background Technology
[0002] Currently, LCD screens are widely used in monitors, tablets, laptops, and other devices. LCD screens consist of LCD panels and LED backlight modules, with the LED backlight modules providing the light source for the LCD panels.
[0003] In current technologies, tablet and laptop backlight modules increasingly utilize high color gamut LEDs to enhance display effects, meet users' demands for wider color gamut coverage, and reproduce true colors. High color gamut LEDs (such as DCI-P3 and Adobe RGB) can display richer colors than traditional sRGB, which is crucial for professional design, photography, and film editing, allowing for more accurate reproduction of content creators' intentions. As consumers' demands for screen quality increase year by year, high color gamut has become a standard feature in mid-to-high-end devices. Manufacturers differentiate their products with high color gamut screens to attract professional and visually sensitive users. Achieving high color gamut LEDs typically employs a "blue LED chip + special phosphor" solution. To expand the color gamut, the phosphor design includes: 1) enhancing red performance to emit more saturated red light; and 2) enhancing green performance to emit more saturated green light. High color gamut LEDs have the following spectral characteristics and problems: 1) Bluish tint: The spectral peak of blue LEDs is at ~450nm (deep blue). To achieve a high color gamut, the phosphor may not be able to perfectly cover the blue-green transition region (480-520nm). If this part of the spectrum is relatively weak or missing, while deep blue (450nm) and yellow-green / yellow light (550-600nm) are strong, the mixed white light will feel bluish (lacking green light component, with blue and yellow emphasizing); 2) Yellowish tint: To achieve a more saturated red, the phosphor needs to enhance the longer wavelength of red light (>620nm). If the phosphor intensity in the yellow light region (570-590nm) is also relatively high, while the blue light is insufficient (or suppressed for some reason), the mixed white light will feel yellowish; 3) LED spectral inhomogeneity: The spectrum of this type of optimized phosphor combination of LEDs may have "bulges" or "sinks" in specific wavelengths (such as the cyan-blue region or the yellow region), causing the color coordinates to deviate from the ideal white point.
[0004] In existing technologies, LED backlight modules mainly use side-lit LED backlight module structures, such as... Figure 1The diagram shows a cross-sectional view of the light-incident end of a side-lit LED backlight module in the prior art. The backlight module includes a back plate 1, a U-shaped frame 2 at the left end of the back plate 1, an LED 3 installed inside the U-shaped frame 2, and a light guide plate 4 installed on the right side of the LED 3. The light emitted by the LED 3 can be directed to the light guide plate 4 and guided out by the light guide plate 4. A black and white reflective film or a white reflective film 5 is attached to the lower side of the upper end of the U-shaped frame 2. The black and white reflective film refers to a composite reflective film with a black film layer on the upper layer and a white film layer on the lower layer, and the white reflective film refers to a reflective film with a single white film layer. The black and white reflective film or the white reflective film 5 is located above the end of the LED 3 and the light guide plate 4, and can reflect the light emitted by the LED 3 to the light guide plate 4. Because LEDs are high color gamut LEDs, the emitted light is uneven, with bluish and yellowish hues. White reflective films only reflect light, while the black layer in a black-and-white reflective film only blocks light, and the white layer only reflects light. Therefore, neither the black-and-white nor the white reflective film can neutralize the bluish and yellowish light emitted by the LEDs. Thus, when the human eye E observes the LED backlight module near the LED's lamp opening, i.e., when observing... Figure 1 When the area is within the dotted circle, you will observe that the lamp opening appears bluish or yellowish, indicating poor optical performance. Utility Model Content
[0005] The technical problem this invention aims to solve is to provide a backlight module with a U-shaped frame and a pink reflective film, addressing the shortcomings of the aforementioned technologies. This backlight module has a pink reflective film attached above the LED and on the upper left side of the light guide plate. The pink reflective film comprises, from top to bottom, a white reflective film layer, a gray ink layer, and a pink ink layer. The white reflective film layer efficiently reflects scattered or unused light back; the gray ink layer has a reflectivity of 50-75%, absorbing all visible light in approximately the same proportion, thus uniformly distributing light and improving uneven brightness at the LED light source; the pink ink layer neutralizes some of the bluish or yellowish light emitted by the LED, preventing bluish or yellowish tint at the LED light source and providing a warmer, more comfortable optical effect.
[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a backlight module with a U-shaped frame and a pink reflective film, including a back plate, an LED, a light guide plate and a pink reflective film. The left end of the back plate is connected to a U-shaped frame, and the LED is installed inside the U-shaped frame. The light guide plate is located on the upper side of the back plate and to the right of the LED. The light emitted by the LED can be uniformly guided out through the light guide plate, and the upper side of the light guide plate is the light-emitting surface. The upper end of the U-shaped frame has a top edge strip. The left end of the pink reflective film is attached to the lower side of the top edge strip of the U-shaped frame and above the LED. The right end of the pink reflective film is attached to the upper left side of the light guide plate. The pink reflective film includes a white reflective film layer, a gray ink layer and a pink ink layer from top to bottom.
[0007] As a further explanation of this utility model: Preferably, a white high-reflectivity ink layer is coated on the underside of the white reflective film layer. The gray ink layer, from top to bottom, comprises a first gray ink layer, a second gray ink layer, and a third gray ink layer. The pink ink layer, from top to bottom, comprises a first pink ink layer and a second pink ink layer. The first gray ink layer is coated on the underside of the white high-reflectivity ink layer, the second gray ink layer is coated on the underside of the first gray ink layer, the third gray ink layer is coated on the underside of the second gray ink layer, the first pink ink layer is coated on the underside of the third gray ink layer, and the second pink ink layer is coated on the underside of the first pink ink layer. The thickness of the white reflective film layer is 50–300 μm, the thickness of the white high-reflectivity ink layer is 1–3 μm, the thicknesses of the first, second, and third gray ink layers are each 1–3 μm, and the thicknesses of the first and second pink ink layers are each 1–3 μm. A diffusion particle layer, with a thickness of 5–7 μm, is further provided below the second pink ink layer. The diffusion particle layer is preferably a PMMA acrylic particle layer.
[0008] Preferably, the U-shaped frame includes a side strip, which is vertically connected to the upper left end of the back panel and is formed by bending upward from the left end of the back panel. The top strip is horizontally connected to the upper end of the side strip and is formed by bending to the right from the upper end of the side strip. The top strip is parallel to the back panel.
[0009] Preferably, a light strip FPC is attached to the upper left end of the back plate, and a row of LEDs is welded to the upper left end of the light strip FPC. The lower left side of the light guide plate is bonded to the upper right side of the light strip FPC with double-sided adhesive.
[0010] Preferably, a reflective film is attached to the lower side of the light guide plate, a diffusion film is attached to the upper side of the light guide plate, a lower brightness enhancement film is attached to the upper side of the diffusion film, an upper brightness enhancement film is attached to the upper side of the lower brightness enhancement film, and the left end of the diffusion film is simultaneously attached to the upper right end of the pink reflective film.
[0011] Preferably, the backlight module with pink reflective film attached to the U-shaped frame also includes liquid crystal glass. The left end of the liquid crystal glass is attached to the top edge strip of the U-shaped frame. A lower polarizer is attached to the lower side of the liquid crystal glass, and an upper polarizer is attached to the upper side of the liquid crystal glass. An OCA optical adhesive layer is provided on the upper side of the upper polarizer, and a high-transparency glass protective cover is provided on the upper side of the OCA optical adhesive layer. The upper polarizer and the high-transparency glass protective cover are bonded together by the OCA optical adhesive layer.
[0012] Preferably, the LED is a high color gamut white LED.
[0013] The beneficial effects of this utility model are as follows: The backlight module of this utility model has a pink reflective film attached above the LED and on the upper left side of the light guide plate. The left end of the pink reflective film is attached to the lower side of the top edge of the U-shaped frame and above the LED, while the right end is attached to the upper left side of the light guide plate. The pink reflective film, from top to bottom, includes a white reflective film layer, a gray ink layer, and a pink ink layer. Therefore, firstly, the white reflective film layer in the pink reflective film can efficiently reflect scattered or unused light back; secondly, the gray ink layer on the lower side of the white reflective film layer prevents the pink ink layer from being directly coated on the lower side of the white reflective film layer. When the pink ink layer is directly coated on the lower side of the white reflective film layer, the white reflective film layer reflects too much light, causing excessive reflection. The pink ink on the lower side is prone to being applied in excess, resulting in a directly pink light. Adjusting the concentration of the pink ink cannot directly improve the problem of excessive pink. Therefore, this invention places a gray ink layer below the white reflective film layer. The gray ink layer prevents the white reflective film layer from reflecting too bright or strong light, and has a reflectivity of 50-75%. The reflectivity can be controlled through the gray ink gradient. The gray ink layer absorbs all visible light in approximately the same proportion, uniformly distributing the light and improving the uneven brightness of the lamp opening. Thirdly, the pink ink layer below the gray ink layer can neutralize some of the bluish or yellowish light emitted by the LED, preventing bluish or yellowish light from appearing at the LED lamp opening and providing a warmer and more comfortable optical effect. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of the light-incident end of the light guide plate in a side-lit LED backlight module in the prior art.
[0015] Figure 2 This is a preferred embodiment of the backlight module of this utility model.
[0016] Figure 3 This is a schematic diagram of a preferred embodiment of the backlight module of this utility model.
[0017] Figure 4 This is a longitudinal sectional view of a preferred embodiment of the backlight module of this utility model.
[0018] Figure 5 for Figure 4 A magnified view of part A in the middle.
[0019] Figure 6 This is a diagram showing the layered structure of the pink reflective film in the backlight module of this utility model.
[0020] Figure 7 This is a preferred layer structure diagram of the pink reflective film in the backlight module of this utility model.
[0021] In the diagram: 1. Back panel; 2. U-shaped frame; 21. Top edge strip; 22. Side edge strip; 3. LED; 4. Light guide plate; 5. Black and white reflective film or white reflective film; 6. Pink reflective film; 61. White reflective film layer; 611. White high reflective ink layer; 62. Gray ink layer; 621. First gray ink layer; 622. Second gray ink layer; 623. Third gray ink layer; 63. Pink ink layer; 631. First pink ink layer; 632. Second pink ink layer; 7. LED strip FPC; 8. Reflective film; 9. Diffuser film; 10. Lower brightness enhancement film; 11. Upper brightness enhancement film; 12. Liquid crystal glass; 13. Lower polarizer; 14. Upper polarizer; 15. OCA optical adhesive layer; 16. High transparency glass protective cover. Detailed Implementation
[0022] The structural and working principles of this utility model will be further described in detail below with reference to the accompanying drawings.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0024] like Figures 2-6As shown, this utility model is a backlight module with a U-shaped frame and a pink reflective film, including a back plate 1, an LED 3, a light guide plate 4, and a pink reflective film 6. The left end of the back plate 1 is connected to a U-shaped frame 2, and the LED 3 is installed inside the U-shaped frame 2. The light guide plate 4 is located on the upper side of the back plate 1 and to the right of the LED 3. The lower side of the light guide plate 4 is a reflective surface with a dotted pattern. The light emitted by the LED 3 can be evenly guided out through the dots of the light guide plate 4. The upper side of the light guide plate 4 is a light-emitting surface. The upper end of the U-shaped frame 2 has a top edge strip 21. The left end of the pink reflective film 6 is attached to the lower side of the top edge strip 21 of the U-shaped frame 2 and is located above the LED 3. The right end of the pink reflective film 6 is attached to the upper left side of the light guide plate 4. The pink reflective film 6 includes a white reflective film layer 61, a gray ink layer 62, and a pink ink layer 63 from top to bottom. The LED 3 described in this invention is a high color gamut white LED, preferably a blue LED chip combined with phosphor to form white light.
[0025] The white reflective film layer 61 in the pink reflective film 6 of this utility model's backlight module can efficiently reflect scattered or unused light back. The backlight module of this utility model has a gray ink layer 62 below the white reflective film layer 61, which can prevent the pink ink layer from being directly coated on the underside of the white reflective film layer. When the pink ink layer 63 is directly coated on the underside of the white reflective film layer, because the white reflective film layer is too reflective, the pink ink coated on the underside of the white reflective film layer is easily excessive, resulting in a directly pink mixed light. By adjusting the proportion and concentration of the pink ink, it is impossible to... To directly address the issue of excessive pink light, this invention places a gray ink layer 62 below the white reflective film layer 61. The gray ink layer 62 prevents the white reflective film layer 61 from reflecting excessively bright or strong light, exhibiting a reflectivity of 50-75%. The reflectivity can be controlled through a gray ink gradient. The gray ink layer 62 absorbs all visible light in approximately the same proportion, resulting in uniform light distribution and improving uneven brightness at the lamp opening. Furthermore, the pink ink layer 63 in the backlight module is placed below the gray ink layer 62. The pink ink layer 63 neutralizes the LED light... The LED emits a portion of bluish and yellowish light to prevent bluish and yellowish tints at the LED 3 lamp head, providing a warmer and more comfortable optical effect. Specifically, the pink ink layer absorbs some bluish-green light (480-520nm). If the original LED white light is bluish due to the relative lack of this area, absorbing some excess and unwanted bluish components (or complementary color components) can move the white point towards the target value (such as D65), reducing the bluish sensation. The pink ink layer also absorbs some yellow light (570-600nm). If the original LED white light is yellowish due to excessive intensity in this area, absorbing some excess yellow components can also correct the white point and reduce the yellow sensation. When the light emitted by the LED shines on the pink reflective film 6, some of the light of these specific wavelengths is absorbed by the pink coating during the reflection process, while other wavelengths of light (especially red, green and dark blue light) are reflected back relatively more. After multiple reflections and diffusions, the proportion of cyan and yellow components in the light emitted from the screen is weakened, making the mixed white light closer to the ideal white point and solving the visual problem of "cyan" or "yellow". This is equivalent to effectively compensating for the "defect spectrum" of the original LED light source.
[0026] like Figure 7As shown, in a preferred embodiment of this utility model, the white reflective film layer 61 is coated with a white high-reflectivity ink layer 611 on its lower side. The gray ink layer 62 includes, from top to bottom, a first gray ink layer 621, a second gray ink layer 622, and a third gray ink layer 623. The pink ink layer 63 includes, from top to bottom, a first pink ink layer 631 and a second pink ink layer 632. The first gray ink layer 621 is coated on the lower side of the white high-reflectivity ink layer 611, the second gray ink layer 622 is coated on the lower side of the first gray ink layer 621, the third gray ink layer 623 is coated on the lower side of the second gray ink layer 622, the first pink ink layer 631 is coated on the lower side of the third gray ink layer 623, and the second pink ink layer 632 is coated on the lower side of the first pink ink layer 631. The white reflective film layer 61 of this invention typically has a reflectivity of 88%–90%. However, after coating with a white high-reflectivity ink layer 611, the reflectivity of the white reflective film layer 61 can be increased to 95%–97%, and the white reflective film layer 61 can maintain a high reflectivity standard for a long time. The gray ink layer 62 of this invention is formed by sequentially coating a first gray ink layer 621, a second gray ink layer 622, and a third gray ink layer 623. This three-layer thin coating method can reduce brightness loss, make the coating more uniform and dense, and precisely control the reflectivity of the gray ink layer 62 to any value between 50% and 75%, for example, it can be controlled to have six reflectivity gradients: 50%, 55%, 60%, 65%, 70%, and 75%. The pink ink layer 63 of this invention is formed by sequentially coating a first pink ink layer 631 and a second pink ink layer 632. The two-layer thin coating method can reduce brightness loss, make the coating more uniform and dense, and accurately control the pink ink ratio concentration of the pink ink layer 63, avoiding the problems of excessive or insufficient pink.
[0027] like Figure 7 As shown, in a preferred embodiment of this invention, the thickness of the white reflective film layer 61 is 50–300 μm, the thickness of the white high-reflectivity ink layer 611 is 1–3 μm, the thicknesses of the first gray ink layer 621, the second gray ink layer 622, and the third gray ink layer 623 are each 1–3 μm, and the thicknesses of the first pink ink layer 631 and the second pink ink layer 632 are each 1–3 μm. This thickness range allows the white reflective film layer 61, the gray ink layer 62, and the pink ink layer 63 to achieve optimal light reflection.
[0028] like Figure 7As shown, in a preferred embodiment of this invention, a diffusion particle layer 64 with a thickness of 5–7 μm is further provided below the second pink ink layer 632. Preferably, the diffusion particle layer 64 is a PMMA acrylic particle layer. The pink ink layer 63 is coated with a high-refractive-index diffusion particle layer 64, further improving light utilization, allowing reflected light to be refracted, and better refracting and mixing the light uniformly, allowing more light to enter the light guide plate 4 and improving the brightness of the backlight module.
[0029] like Figures 3-5 As shown, the U-shaped frame 2 includes side strips 22, which are vertically connected to the upper left end of the back panel 1 and formed by bending upwards from the left end of the back panel 1. A top strip 21 is horizontally connected to the upper end of the side strips 22 and formed by bending to the right from the upper end of the side strips 22. The top strip 21 is parallel to the back panel 1. This bending method ensures the stability of the U-shaped frame 2.
[0030] like Figures 3-5 As shown, a light strip FPC 7 is attached to the upper left end of the back plate 1, and a row of LEDs 3 is welded to the upper left end of the light strip FPC 7. The lower left side of the light guide plate 4 and the upper right side of the light strip FPC 7 are bonded together with double-sided adhesive so that the left end of the light guide plate 4 can be tightly attached to the LEDs 3.
[0031] like Figures 3-5 As shown, a reflective film 8 is attached to the lower side of the light guide plate 4, which reflects the light leaking through the light guide plate 4 back, reducing light loss and increasing backlight brightness; a diffuser film 9 is attached to the upper side of the light guide plate 4. The diffuser film makes the light more uniform through its internal microstructure (such as scattering particles or imprinted structure), correcting the line light source or point light source output by the light guide plate 4 into a uniform surface light source, avoiding uneven local brightness; a lower brightness enhancement film 10 is attached to the upper side of the diffuser film 9, and an upper brightness enhancement film 11 is attached to the upper side of the lower brightness enhancement film 10. The left end of the diffuser film 9 is also attached to the upper right end of the pink reflective film 6.
[0032] like Figures 3-5 As shown, the backlight module with pink reflective film 6 attached to the U-shaped frame 2 also includes liquid crystal glass 12. The left end of the liquid crystal glass 12 is attached to the top edge strip 21 of the U-shaped frame 2. A lower polarizer 13 is attached to the lower side of the liquid crystal glass 12, and an upper polarizer 14 is attached to the upper side of the liquid crystal glass 12. An OCA optical adhesive layer 15 is provided on the upper side of the upper polarizer 14, and a high-transparency glass protective cover plate 16 is provided on the upper side of the OCA optical adhesive layer 15. The upper polarizer 14 and the high-transparency glass protective cover plate 16 are bonded together by the OCA optical adhesive layer 15.
[0033] The above description is merely a preferred embodiment of this utility model. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.
Claims
1. A backlight module with a U-shaped frame and a pink reflective film, characterized in that: The device includes a back panel, LEDs, a light guide plate, and a pink reflective film. The left end of the back panel is connected to a U-shaped frame, and the LEDs are installed inside the U-shaped frame. The light guide plate is located on the upper part of the back panel and to the right of the LEDs. The light emitted by the LEDs can be evenly guided out through the light guide plate, and the upper side of the light guide plate is the light-emitting surface. The upper end of the U-shaped frame has a top edge strip. The left end of the pink reflective film is attached to the lower side of the top edge strip of the U-shaped frame and above the LEDs. The right end of the pink reflective film is attached to the upper left side of the light-emitting surface of the light guide plate. The pink reflective film consists of a white reflective film layer, a gray ink layer, and a pink ink layer from top to bottom.
2. The backlight module with a pink reflective film attached to a U-shaped frame as described in claim 1, characterized in that: The white reflective film layer is coated with a white high-reflectivity ink layer on its lower side. The gray ink layer includes, from top to bottom, a first gray ink layer, a second gray ink layer, and a third gray ink layer. The pink ink layer includes, from top to bottom, a first pink ink layer and a second pink ink layer. The first gray ink layer is coated on the lower side of the white high-reflectivity ink layer, the second gray ink layer is coated on the lower side of the first gray ink layer, the third gray ink layer is coated on the lower side of the second gray ink layer, the first pink ink layer is coated on the lower side of the third gray ink layer, and the second pink ink layer is coated on the lower side of the first pink ink layer.
3. The backlight module with a pink reflective film attached to a U-shaped frame according to claim 2, characterized in that: The thickness of the white reflective film layer is 50–300 μm, the thickness of the white high-reflective ink layer is 1–3 μm, the thicknesses of the first gray ink layer, the second gray ink layer, and the third gray ink layer are 1–3 μm, and the thicknesses of the first pink ink layer and the second pink ink layer are 1–3 μm, respectively.
4. The backlight module with a pink reflective film attached to a U-shaped frame according to claim 2, characterized in that: Below the second pink ink layer, there is also a diffusion particle layer with a thickness of 5-7 μm.
5. The backlight module with a pink reflective film attached to a U-shaped frame according to claim 4, characterized in that: The diffused particle layer is a PMMA acrylic particle layer.
6. The backlight module with a pink reflective film attached to a U-shaped frame according to claim 1, characterized in that: The U-shaped frame includes a side strip, which is vertically connected to the upper left end of the back panel and is formed by bending upward from the left end of the back panel. The top strip is horizontally connected to the upper end of the side strip and is formed by bending to the right from the upper end of the side strip. The top strip is parallel to the back panel.
7. The backlight module with a pink reflective film attached to a U-shaped frame according to claim 1, characterized in that: A light strip FPC is attached to the upper left end of the back plate, and a row of LEDs is welded to the upper left end of the light strip FPC. The lower left side of the light guide plate is bonded to the upper right side of the light strip FPC with double-sided adhesive.
8. The backlight module with a pink reflective film attached to a U-shaped frame according to claim 1, characterized in that: A reflective film is attached to the lower side of the light guide plate, a diffusion film is attached to the upper side of the light guide plate, a lower brightness enhancement film is attached to the upper side of the diffusion film, and an upper brightness enhancement film is attached to the upper side of the lower brightness enhancement film. The left end of the diffusion film is also attached to the upper right end of the pink reflective film.
9. The backlight module with a pink reflective film attached to a U-shaped frame according to claim 1, characterized in that: It also includes liquid crystal glass, the left end of which is attached to the top edge strip of the U-shaped frame, a lower polarizer is attached to the lower side of the liquid crystal glass, an upper polarizer is attached to the upper side of the liquid crystal glass, an OCA optical adhesive layer is provided on the upper side of the upper polarizer, and a high-transparency glass protective cover is provided on the upper side of the OCA optical adhesive layer. The upper polarizer and the high-transparency glass protective cover are bonded together by the OCA optical adhesive layer.
10. The backlight module with a pink reflective film attached to a U-shaped frame according to any one of claims 1-9, characterized in that: The LED is a high color gamut white LED.