A thin, integrated TFT-LCD display screen

Abstract

This application relates to a thin, integrated TFT-LCD display screen, belonging to the technical field of display screens. It includes a housing, a backplate, a backlight module, a rear cover plate, a reflective layer, a thin-film polarizer, a TFT substrate, a TFT array layer, an alignment film, a liquid crystal layer, a color filter, a front polarizer, an optically transparent adhesive, and a protective cover plate. This application improves heat dissipation efficiency. The bottom of the housing, through the cooperation of a motor, an internally threaded sleeve, and a screw, can drive the backplate to move up and down, adjusting the distance between it and the backlight module. This achieves dynamic adjustment of the heat dissipation gap, accommodating the heat generated by the backlight module during operation and promoting airflow for cooling the backlight module. This results in good heat dissipation uniformity and effectively extends the lifespan of the display screen.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a thin, integrated TFT-LCD display. Background Technology

[0002] TFT-LCD displays are widely used in various electronic devices due to their advantages such as small size, light weight, and low power consumption. To achieve better portability and visual experience, displays are constantly developing towards thinner, narrower bezels and integrated designs.

[0003] Existing thin designs typically integrate backlight modules, LCD panels, and optical films into a housing, and use passive heat dissipation structures to meet basic heat dissipation requirements.

[0004] However, existing thin-film integrated TFT-LCD displays have limited thickness, resulting in insufficient heat dissipation under high-temperature conditions or during long-term use. They lack active heat dissipation structures for components such as the backlight module, which can lead to heat accumulation and localized overheating, thus affecting the long-term stability and lifespan of the display. Summary of the Invention

[0005] The purpose of this application is to provide a thin, integrated TFT-LCD display screen to solve the problems in the prior art.

[0006] This application provides a thin, integrated TFT-LCD display screen with the following technical solution: It includes a housing, a backplate connected to the bottom of the housing, a backlight module inside the bottom of the housing, a rear cover plate on the bottom surface of the backlight module, a reflective layer connected to the top surface of the backlight module, a thin-film polarizer on the top surface of the reflective layer, a TFT substrate on the top surface of the thin-film polarizer, a TFT array layer on the top surface of the TFT substrate, an alignment film on the top surface of the TFT array layer, a liquid crystal layer on the top surface of the alignment film, a color filter on the top surface of the liquid crystal layer, a front polarizer on the top surface of the color filter, an optically transparent adhesive on the top surface of the front polarizer, and a protective cover plate on the top surface of the optically transparent adhesive. The bottom surface of the housing is provided with a set of mounting slots at both the left and right ends. A set of motors is provided at the top of each mounting slot. A set of internal threaded sleeves is provided at the bottom of each motor drive shaft. A set of screws is connected to the inner end of each internal threaded sleeve. The bottom ends of the two sets of screws are respectively connected to the left and right ends of the top surface of the back plate. A set of fixing plates is provided on the outer side of each internal threaded sleeve. A set of guide rods is connected to the outer end of each fixing plate. The bottom end of the guide rods is connected to the top surface of the back plate.

[0007] By adopting the above technical solution, a thin integrated display structure is formed by components such as the backlight module, reflective layer and thin film polarizer installed in the housing. At the same time, the motor at the bottom of the housing drives the internal threaded sleeve to rotate, so that the screw drives the back plate to rise and fall. The fixing plate and guide rod provide guidance, which can realize the dynamic adjustment of the heat dissipation gap of the display screen, giving it the ability to actively adjust heat dissipation and ensure the heat dissipation effect of the display screen.

[0008] Preferably, a set of reflective films is provided on the inner bottom surface of the rear cover plate.

[0009] By adopting the above technical solution, the reflective film can reflect the light leaking downward from the backlight module back upward into the display light path, significantly improving the backlight utilization rate, increasing the brightness of the display screen and reducing energy consumption.

[0010] Preferably, the back plate includes a connecting frame, a first ventilation mesh, a guide plate, a bottom box, heat dissipation fins, a fan, and a second ventilation mesh. The top of the connecting frame is provided with no less than two sets of the first ventilation mesh and the guide plate. The bottom middle of the connecting frame is provided with a bottom box. Both the front and rear ends of the bottom box are provided with a set of heat dissipation fins. The bottom end of the bottom box is provided with no less than two sets of fans. The bottom middle of the bottom box is provided with the second ventilation mesh.

[0011] By adopting the above technical solution, the airflow driven by the fan in the bottom box can remove the heat generated by the backlight module, which has high heat dissipation efficiency, effectively ensures the long-term stable operation of the display screen, and extends the service life of the display screen.

[0012] Preferably, the ventilation mesh and the guide plate are arranged alternately.

[0013] By adopting the above technical solution, the alternating ventilation mesh and guide plate can make the airflow evenly distributed inside the back plate, avoid the generation of eddies or dead flow angles, improve the overall heat dissipation uniformity, and prevent local overheating.

[0014] Preferably, the top surface of the guide plate has at least two sets of guide grooves.

[0015] By adopting the above technical solution, the guide channel can guide the airflow in a specific direction, increase the contact area with the air, further improve heat dissipation efficiency, and optimize the air duct path.

[0016] Preferably, the bottom box is a box-shaped structure with an opening at the top, and the top opening is attached to the ventilation mesh and the bottom surface of the guide plate.

[0017] By adopting the above technical solutions, wind pressure can be effectively enhanced, preventing airflow from leaking before passing through the heat dissipation area and improving the heat dissipation effect.

[0018] Preferably, the fixing plate is sleeved on the outside of the internal threaded sleeve, and the fixing plate is slidably connected to the guide rod.

[0019] By adopting the above technical solution, the accuracy and structural stability of the back panel lifting movement can be effectively improved, and the back panel can be prevented from tilting during the movement.

[0020] Preferably, the rear cover is made of an opaque material.

[0021] By adopting the above technical solution, the light from the backlight module can be blocked from escaping from the rear, thereby improving display contrast and light energy utilization efficiency.

[0022] Preferably, the rear cover plate is a box-shaped structure with an open top, and is installed on the bottom outer end of the backlight module.

[0023] By adopting the above technical solution, the rear cover plate provides full-enclosed protection and light shielding for the backlight module.

[0024] Preferably, thermally conductive silicone grease is provided between the rear cover plate and the back plate.

[0025] By adopting the above technical solution, the back panel has a strong heat conduction and cooling effect even when it is not unfolded.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a rear cover plate at the bottom of the backlight module, and the inner bottom surface of the rear cover plate is also provided with a reflective film, and the rear cover plate adopts an opaque copper box-shaped structure, the light leaking downward from the backlight module can be reflected upward back into the display light path, while blocking the light from being emitted from the rear, which significantly improves the backlight utilization rate of the backlight module, increases the brightness of the display screen and reduces energy consumption. At the same time, the copper rear cover plate also has a heat conduction function, which can assist in heat dissipation. 2. This application uses a mounting groove at the bottom of the housing, in which components such as a motor, internal threaded sleeve, screw, fixing plate and guide rod are installed. With their cooperation, the back plate can be driven to move up and down, thereby dynamically adjusting the heat dissipation gap between the housing and the back plate. This effectively solves the problem that the heat dissipation capacity of existing displays is not adjustable due to the fixed thickness. The display can actively change the size of the airflow channel according to the heat generation, ensuring the heat dissipation effect while adapting to different installation space requirements. 3. This application utilizes a backplate located at the bottom of the rear cover plate. The backplate includes components such as a connecting frame, a ventilation mesh, a guide plate, a base box, heat dissipation fins, a fan, and a second ventilation mesh. The fan in the base box guides the airflow, and works in conjunction with the guide plate and heat dissipation fins to ensure uniform airflow distribution and efficient heat dissipation for the backlight module. This achieves efficient and uniform active heat dissipation, prevents localized overheating, and significantly extends the lifespan of the display screen. Attached Figure Description

[0027] Figure 1 This is a cross-sectional structural diagram of this application; Figure 2 This is a schematic diagram of the internal structure of the mounting slot in this application; Figure 3 This is a schematic diagram of the rear cover plate structure of this application; Figure 4 This is a schematic diagram of the top surface structure of the back panel of this application; Figure 5 This is a schematic diagram of the bottom structure of the backplate of this application; Figure 6 This is a top view of the inner end of the connection frame in this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Backplate; 3. Backlight module; 4. Rear cover plate; 5. Reflective layer; 6. Thin-film polarizer; 7. TFT substrate; 8. TFT array layer; 9. Alignment film; 10. Liquid crystal layer; 11. Color filter; 12. Front polarizer; 13. Optical transparent adhesive; 14. Protective cover plate; 101. Mounting groove; 102. Motor; 103. Internal threaded sleeve; 104. Screw; 105. Fixing plate; 106. Guide rod; 41. Reflective film; 201. Connecting frame; 202. Ventilation mesh one; 203. Guide plate; 204. Base box; 205. Heat dissipation fins; 206. Fan; 207. Ventilation mesh two. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0030] A thin, integrated TFT-LCD display screen, reference Figure 1 and Figure 3The system includes a housing 1, with a backplate 2 connected to the bottom of the housing 1. A backlight module 3 is located inside the bottom of the housing 1, and a rear cover plate 4 is located on the bottom surface of the backlight module 3. The rear cover plate 4 is made of opaque material, which blocks light from escaping from the rear of the backlight module 3, improving display contrast and light energy utilization. The rear cover plate 4 is a box-shaped structure with an open top, made of copper, which has good thermal conductivity and effectively improves heat dissipation. The box-shaped rear cover plate 4 is installed on the outer bottom of the backlight module 3, providing full-enclosed protection and light shielding for the backlight module 3. A reflective film 41 is located on the inner bottom surface of the rear cover plate 4. The reflective film 41 is a white aluminum film with good reflective properties, reflecting light leaking downwards from the backlight module 3 back towards the backlight module 3. In the upper reflection back to the display light path, the backlight utilization rate is significantly improved, the display brightness is increased and the energy consumption is reduced. At the same time, thermal grease is provided between the rear cover plate 4 and the back plate 2, so that the back plate 2 has a strong heat conduction and cooling effect when it is not unfolded. The top surface of the backlight module 3 is connected to the reflective layer 5. The top surface of the reflective layer 5 is provided with a thin film polarizer 6. The top surface of the thin film polarizer 6 is provided with a TFT substrate 7. The top surface of the TFT substrate 7 is provided with a TFT array layer 8. The top surface of the TFT array layer 8 is provided with an alignment film 9. The top surface of the alignment film 9 is provided with a liquid crystal layer 10. The top surface of the liquid crystal layer 10 is provided with a color filter 11. The top surface of the color filter 11 is provided with a front polarizer 12. The top surface of the front polarizer 12 is provided with an optical transparent adhesive 13. The top surface of the optical transparent adhesive 13 is provided with a protective cover plate 14.

[0031] Specifically, the thin integrated display structure is formed by the backlight module 3, the reflective layer 5, and the thin-film polarizer 6 installed in the housing 1.

[0032] A thin, integrated TFT-LCD display screen, reference Figures 1-2The bottom surface of the housing 1 has a set of mounting slots 101 at both the left and right ends. A set of motors 102 is installed at the top of each mounting slot 101. The bottom end of each motor 102 drive shaft is connected to a set of internally threaded sleeves 103. Rotation of the motor 102 drive shaft drives the internally threaded sleeves 103 to rotate. The inner end of each internally threaded sleeve 103 is connected to a set of screws 104. The bottom ends of the two sets of screws 104 are fixedly connected to the left and right ends of the top surface of the connecting frame 201, respectively. When the internally threaded sleeves 103 rotate, the rotational motion is converted into linear lifting motion through the fixedly connected screws 104, thereby achieving [the desired motion]. The lifting and lowering movement of the back plate 2 is achieved by a set of fixing plates 105 fitted on the outer side of the internal threaded sleeve 103. This prevents the fixing plates 105 from interfering with the rotational movement of the internal threaded sleeve 103. A set of guide rods 106 are slidably connected to one end of the fixing plate 105 near the outer side. The bottom end of the guide rods 106 is fixedly connected to the top surface of the back plate 2. This effectively improves the accuracy and structural stability of the lifting and lowering movement of the back plate 2 and prevents the back plate 2 from tilting during movement. When the internal threaded sleeve 103 drives the screw 104 to lift and lower the back plate 2, the movement stability can be improved through the cooperation of the guide rods 106 and the fixing plates 105.

[0033] Specifically, the motor 102 at the bottom of the housing 1 drives the internal threaded sleeve 103 to rotate, causing the screw 104 to lift the back plate 2. The fixing plate 105 and the guide rod 106 provide guidance, which can realize the dynamic adjustment of the heat dissipation gap of the display screen, enabling it to have active heat dissipation adjustment capability and ensuring the heat dissipation effect of the display screen.

[0034] A thin, integrated TFT-LCD display screen, reference Figures 4-6The backplate 2 includes a connecting frame 201, a first ventilation mesh 202, a guide plate 203, a base box 204, heat dissipation fins 205, a fan 206, and a second ventilation mesh 207. The top of the connecting frame 201 is provided with at least two sets of first ventilation meshes 202 and guide plates 203, which are alternately arranged. This alternating arrangement of first ventilation meshes 202 and guide plates 203 ensures uniform airflow distribution within the backplate 2, preventing eddies or dead zones, improving overall heat dissipation uniformity, and preventing localized overheating. Furthermore, the top surface of the guide plate 203 has at least two sets of guide grooves, which guide airflow in a specific direction, increasing the contact area with air and further improving heat dissipation. To improve thermal efficiency and optimize airflow path, a bottom box 204 is provided at the bottom center of the connecting frame 201. The bottom box 204 is a box-shaped structure with an opening at the top, and the top opening is attached to the bottom surface of the ventilation mesh 202 and the guide plate 203. This can effectively enhance wind pressure, prevent airflow leakage before passing through the heat dissipation area, and improve heat dissipation. A set of heat dissipation fins 205 are provided at both the front and rear ends of the bottom box 204 to improve heat dissipation. At least two sets of fans 206 are provided inside the bottom of the bottom box 204 to guide airflow and ventilate and cool the backlight module 3, preventing the backlight module 3 from overheating. A second ventilation mesh 207 is provided at the bottom center of the bottom box 204, which facilitates airflow and enhances heat dissipation.

[0035] Specifically, the airflow driven by the fan 206 inside the base box 204 can remove the heat generated by the backlight module 3, which has high heat dissipation efficiency, effectively ensuring the long-term stable operation of the display screen and extending the service life of the display screen.

[0036] This application provides a thin, integrated TFT-LCD display screen. By using the rear cover plate 4 and the reflective film 41 on the inner bottom surface of the backlight module 3, the backlight utilization rate can be significantly improved, the brightness increased, and the energy consumption reduced. By using components such as the motor 102 and the internal threaded sleeve 103 installed in the mounting groove 101 at the bottom of the housing 1, the back plate 2 can be driven to move up and down, dynamically adjusting the heat dissipation gap between the housing 1 and the back plate 2, thus solving the problem of fixed thickness and unadjustable heat dissipation capacity of traditional displays. By using components such as the fan 206, the guide plate 203, and the heat dissipation fins 205 installed in the back plate 2, the air is guided to flow evenly, providing efficient and uniform active heat dissipation for the backlight module 3, preventing local overheating, and extending the service life of the display screen.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A thin, integrated TFT-LCD display screen, characterized in that: The device includes a housing (1), a back plate (2) connected to the bottom of the housing (1), a backlight module (3) provided at the bottom of the housing (1), a rear cover plate (4) provided on the bottom surface of the backlight module (3), a reflective layer (5) connected to the top surface of the backlight module (3), a thin film polarizer (6) provided on the top surface of the reflective layer (5), a TFT substrate (7) provided on the top surface of the thin film polarizer (6), a TFT array layer (8) provided on the top surface of the TFT substrate (7), an alignment film (9) provided on the top surface of the TFT array layer (8), a liquid crystal layer (10) provided on the top surface of the alignment film (9), a color filter (11) provided on the top surface of the liquid crystal layer (10), a front polarizer (12) provided on the top surface of the color filter (11), an optically transparent adhesive (13) provided on the top surface of the front polarizer (12), and a protective cover plate (14) provided on the top surface of the optically transparent adhesive (13). The bottom surface of the housing (1) is provided with a set of mounting grooves (101) at both the left and right ends. The top of the mounting grooves (101) is provided with a set of motors (102). The bottom of the drive shaft of the motors (102) is provided with a set of internal threaded sleeves (103). The inner end of the internal threaded sleeves (103) is connected to a set of screws (104). The bottom ends of the two sets of screws (104) are respectively connected to the left and right ends of the top surface of the back plate (2). The outer side of the internal threaded sleeves (103) is provided with a set of fixing plates (105). The end of the fixing plate (105) near the outer side is connected to a set of guide rods (106). The bottom end of the guide rods (106) is connected to the top surface of the back plate (2).

2. The thin integrated TFT-LCD display screen according to claim 1, characterized in that: The bottom surface of the rear cover plate (4) is provided with a set of reflective film (41).

3. The thin integrated TFT-LCD display screen according to claim 1, characterized in that: The back plate (2) includes a connecting frame (201), a ventilation mesh one (202), a guide plate (203), a bottom box (204), heat dissipation fins (205), a fan (206), and a ventilation mesh two (207). The top of the connecting frame (201) is provided with no less than two sets of ventilation mesh one (202) and guide plate (203). The bottom of the connecting frame (201) is provided with a bottom box (204). The front and rear ends of the bottom box (204) are provided with a set of heat dissipation fins (205). The bottom of the bottom box (204) is provided with no less than two sets of fans (206). The bottom of the bottom box (204) is provided with a ventilation mesh two (207).

4. The thin integrated TFT-LCD display screen according to claim 3, characterized in that: The ventilation mesh (202) and the guide plate (203) are alternately arranged.

5. The thin integrated TFT-LCD display screen according to claim 4, characterized in that: The top surface of the guide plate (203) has at least two sets of guide grooves.

6. The thin integrated TFT-LCD display screen according to claim 3, characterized in that: The bottom box (204) is a box-shaped structure with an opening at the top, and the opening at the top is attached to the bottom surface of the ventilation mesh (202) and the guide plate (203).

7. The thin integrated TFT-LCD display screen according to claim 1, characterized in that: The fixing plate (105) is sleeved on the outside of the internal threaded sleeve (103), and the fixing plate (105) is slidably connected to the guide rod (106).

8. The thin integrated TFT-LCD display screen according to claim 2, characterized in that: The rear cover plate (4) is made of opaque material.

9. The thin integrated TFT-LCD display screen according to claim 1, characterized in that: The rear cover plate (4) is a box-shaped structure with an open top and is installed on the bottom of the backlight module (3).

10. A thin integrated TFT-LCD display screen according to claim 1, characterized in that: Thermal grease is provided between the rear cover plate (4) and the back plate (2).

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