High-efficiency heat dissipation OLED (Organic Light Emitting Diode) backlight source
By designing heat dissipation components and auxiliary components, the problem of insufficient heat dissipation of OLED backlight in high brightness mode is solved, achieving more efficient heat dissipation and improving the dustproof and waterproof properties of the equipment, thus extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-13
AI Technical Summary
In high-brightness mode, the OLED backlight has insufficient heat dissipation efficiency, which causes the device temperature to rise sharply, leading to problems such as luminous efficiency decay, color drift and shortened lifespan.
The heat dissipation components include a combination of heat sinks, fan blades, positioning posts, and heat fins. The fan blades are driven by a motor to rotate and introduce airflow. The heat sinks and heat fins are used to accelerate heat dissipation. Combined with auxiliary components, it provides airflow and dustproof and waterproof functions.
It improves the heat dissipation capacity of the OLED backlight, enhances the dustproof and waterproof properties of the equipment, improves the ease of maintenance, and extends the service life of the equipment.
Smart Images
Figure CN223993033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of backlight heat dissipation, and in particular to a high-efficiency heat dissipation OLED backlight. Background Technology
[0002] With the rapid development of organic light-emitting diode (OLED) display technology, its advantages in high contrast, flexible display, and thinness have become increasingly prominent, and it has been widely used in consumer electronics products such as smartphones, wearable devices, and televisions.
[0003] Backlight modules typically use OLEDs as the backlight source. OLEDs are self-emissive and do not require a backlight. However, in some applications, additional light sources or structures are used to enhance the OLED's luminous effect in order to improve brightness and uniformity. The OLED backlight referred to here is the light source portion of such enhancement structures. The light emitted by the OLED is processed by components such as light guide plates, reflectors, and optical films to achieve the backlight effect.
[0004] The above-mentioned device has the following defects: When the OLED device is working, especially in high brightness mode, the Joule heat generated by current driving and the heat generated by non-radiative recombination of the light-emitting layer will accumulate significantly. If the heat dissipation efficiency is insufficient, the device temperature will rise sharply, which will lead to problems such as luminous efficiency decay, color drift, and shortened lifespan, which seriously restricts the performance of OLED in high load scenarios. Therefore, a high-efficiency heat dissipation OLED backlight is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a high-efficiency heat dissipation OLED backlight, which aims to improve the problem of insufficient heat dissipation in the prior art during use.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency heat dissipation OLED backlight, comprising a mounting frame, a display screen fixedly mounted on the inner wall of the mounting frame, a backlight plate fixedly mounted on the rear surface of the display screen, a housing fixedly mounted on the rear surface of the mounting frame, a heat dissipation assembly disposed inside the housing, a mounting plate fixedly mounted on the rear surface of the housing, auxiliary components disposed at both ends of the rear surface of the mounting plate, a motor fixedly mounted at the center of the rear surface of the mounting plate, the heat dissipation assembly comprising a heat dissipation plate, two sets of positioning grooves formed on the left surface of the heat dissipation plate, a positioning post fixedly connected to the right surface of the heat dissipation plate, and multiple sets of evenly distributed heat dissipation fins fixedly connected to the rear surface of the heat dissipation plate.
[0007] As a further description of the above technical solution: the auxiliary component includes an auxiliary plate, the rear surface of which is fixedly connected with multiple sets of auxiliary strips, and the front surface of which is provided with multiple sets of auxiliary grooves.
[0008] As a further description of the above technical solution: the output shaft of the motor is fixedly equipped with fan blades, and the lower surface of the housing is detachably connected with a dustproof net.
[0009] As a further description of the above technical solution: the positioning post is engaged in the inner wall of the positioning groove.
[0010] As a further description of the above technical solution: multiple sets of evenly distributed heat dissipation grooves are formed on both the left and right surfaces of the heat sink.
[0011] As a further description of the above technical solution: the front surface of the auxiliary plate is in contact with the rear surface of the backlight plate.
[0012] As a further description of the above technical solution: the outer wall of the auxiliary strip is set as a semi-circular arc structure, the interior of the auxiliary strip is set as a hollow structure, and the top corner of the outer surface of the auxiliary strip is set as a rounded corner structure.
[0013] As a further description of the above technical solution: the output shaft of the motor is connected through to the front surface of the mounting plate.
[0014] As a further description of the above technical solution: the heat sink is detachably connected to the rear surface of the backlight plate by fixing bolts.
[0015] As a further description of the above technical solution: the auxiliary plate is detachably connected to the inner wall of the mounting plate by auxiliary bolts.
[0016] This utility model has the following beneficial effects:
[0017] 1. In this utility model, by utilizing the mutual cooperation between the heat dissipation plate, fan blades, positioning posts and other components in the heat dissipation assembly through the connection relationship, the heat dissipation effect of airflow on the rear surface of the backlight board is accelerated, the heat dissipation capacity of the heat dissipation plate and heat sink for the backlight board is improved, the adaptability and dust resistance of the heat dissipation plate combination are improved, and the heat dissipation effect of the equipment is enhanced.
[0018] 2. In this utility model, the auxiliary plate, auxiliary strip, mounting plate and other components in the auxiliary components cooperate with each other through the connection relationship to provide airflow in the casing, which improves the heat dissipation of the equipment, gives the casing waterproofness, improves the convenience of equipment maintenance and repair, and enriches the functionality of the equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the front view area of a high-efficiency heat dissipation OLED backlight body proposed in this utility model;
[0020] Figure 2This is a schematic diagram of the rear view area of the main body of a high-efficiency heat dissipation OLED backlight proposed in this utility model.
[0021] Figure 3 This is a schematic diagram of the internal area of the housing of a high-efficiency heat dissipation OLED backlight proposed in this utility model.
[0022] Figure 4 This is an exploded view of a portion of the backlight board components of a high-efficiency heat dissipation OLED backlight proposed in this utility model.
[0023] Figure 5 This is an exploded view of a partial area of the auxiliary board of an efficient heat dissipation OLED backlight proposed in this utility model.
[0024] Legend:
[0025] 1. Mounting frame; 2. Display screen; 21. Backlight board; 3. Housing; 4. Motor; 5. Auxiliary components; 51. Auxiliary plate; 52. Auxiliary bolts; 53. Auxiliary strips; 54. Auxiliary grooves; 6. Heat dissipation components; 61. Heat sink; 62. Positioning groove; 63. Fixing bolts; 64. Heat sink fins; 65. Heat dissipation grooves; 66. Positioning posts; 68. Fan blades; 69. Dustproof net; 8. Mounting plate. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figure 1 - Figure 2This utility model provides an embodiment of a high-efficiency heat dissipation OLED backlight, including a mounting frame 1, which supports a display screen 2. The display screen 2 is fixedly mounted on the inner wall of the mounting frame 1. The display screen 2 displays the information required by the device. A backlight plate 21 is fixedly mounted on the rear surface of the display screen 2. The components in the backlight plate 21 assist the information displayed on the display screen 2, improving the brightness and uniformity of the information display. A housing 3 is fixedly mounted on the rear surface of the mounting frame 1. The housing 3 provides physical protection for the components inside the backlight plate 21, improving the protection of the device during use. A heat dissipation component 6 is provided inside the housing 3. A mounting plate 8 is fixedly mounted on the rear surface of the housing 3. The space formed by the mounting plate 8 and the housing 3 provides a working environment for the operation of the backlight plate 21. Auxiliary components 5 are provided at both ends of the rear surface of the mounting plate 8. A motor 4 is fixedly mounted at the center of the rear surface of the mounting plate 8.
[0028] Reference Figure 2 - Figure 4 After prolonged operation, the outer surface of the backlight panel 21 accumulates heat due to the operation of electronic components. When the temperature rises to a specified value, the temperature sensor inside the backlight panel 21 transmits an electrical signal to the motor 4, causing the motor 4 to start. The heat dissipation assembly 6 includes a heat sink 61, which is detachably connected to the rear surface of the backlight panel 21 by fixing bolts 63. The output shaft of the motor 4 is connected through the front surface of the mounting plate 8. The output shaft of the motor 4 is fixedly mounted with fan blades 68. The rotation of the output shaft of the motor 4 drives the fan blades 68 to rotate, and the external airflow is introduced into the interior of the housing 3 through the auxiliary groove 54, which accelerates the heat dissipation effect of the airflow on the rear surface of the backlight panel 21 and improves the heat dissipation capacity of the equipment. Two sets of positioning grooves 62 are opened on the left surface of the heat sink 61, and the rear surface of the backlight panel 21 absorbs heat through the heat sink 61. Multiple sets of evenly distributed heat sinks 6 are fixedly connected to the rear surface of the heat sink 61. 4. Multiple sets of evenly distributed heat dissipation grooves 65 are formed on both the left and right surfaces of the heat sink 64. The heat sink 64 conducts heat out of the heat sink 61. The heat dissipation grooves 65 increase the area of the heat sink 64 and reduce the thickness of the heat sink 64 itself. With the help of the airflow from the rotating fan blades 68, the heat dissipation capacity of the heat sink 61 and the heat sink 64 to the backlight board 21 is improved, thus enhancing the heat dissipation effect of the equipment. A positioning post 66 is fixedly connected to the right surface of the heat sink 61. The positioning post 66 is snapped into the inner wall of the positioning groove 62. The positioning post 66 and the positioning groove 62 enable the assembly and disassembly of the heat sink 61, improving the compatibility range of the heat sink 61 after assembly. A dustproof net 69 is detachably connected to the lower surface of the housing 3. The dustproof net 69 guides the airflow, ensuring the air pressure balance in the housing 3 and preventing dust and impurities in the outside air from directly entering the equipment, thus improving the dustproof performance of the equipment.
[0029] Reference Figure 3 - Figure 5 During the rotation of the fan blade 68, the auxiliary strip 53 works in conjunction with the auxiliary groove 54. The auxiliary component 5 includes an auxiliary plate 51. The front surface of the auxiliary plate 51 has multiple sets of auxiliary grooves 54, which provide airflow channels for the airflow in the housing 3, improving the heat dissipation of the equipment. The front surface of the auxiliary plate 51 is in contact with the rear surface of the backlight plate 21. The arc-shaped design of the outer wall of the auxiliary strip 53 prevents the entry of external dust and impurities, giving the equipment housing 3 waterproof properties. Multiple sets of auxiliary strips 53 are fixedly connected to the rear surface of the auxiliary plate 51. The outer wall of the auxiliary strip 53 is set with a semi-circular arc structure. The interior of the housing 3 is designed as a hollow structure, and the top corner of the outer surface of the auxiliary strip 53 is designed as a rounded corner structure. Water flow is discharged under the action of the outer wall of the auxiliary strip 53, which prevents water from entering the equipment and improves the waterproof performance of the equipment. When the equipment needs maintenance, the auxiliary plate 51 can be detachably connected to the inner wall of the mounting plate 8 through the auxiliary bolts 52. The components inside the housing 3 can be maintained by facing the mounting plate 8, and the auxiliary components 5 can also be maintained by disassembling the auxiliary plate 51, which improves the convenience of equipment maintenance and inspection and enriches the functionality of the equipment.
[0030] Working principle: After prolonged operation, the outer surface of the backlight board 21 generates heat due to the operation of electronic components. When the temperature rises to a specified value, the temperature sensor inside the backlight board 21 transmits an electrical signal to the motor 4, causing the motor 4 to start. The output shaft of the motor 4 rotates, driving the fan blades 68 to rotate. Through the auxiliary slot 54, external airflow is introduced into the interior of the housing 3, accelerating the heat dissipation effect of the airflow on the rear surface of the backlight board 21 and improving the heat dissipation capacity of the equipment. Furthermore, the rear surface of the backlight board 21 is further cooled by the heat sink 61. The heat is drawn out and discharged through the heat sink 64, which conducts the heat from the heat sink 61. The heat sink 65 increases the area of the heat sink 64 and reduces the thickness of the heat sink 64 itself. With the help of the airflow from the rotating fan blades 68, the heat dissipation capacity of the heat sink 61 and the heat sink 64 for the backlight board 21 is improved, thus enhancing the heat dissipation effect of the equipment. The airflow is discharged through the dustproof net 69, which ensures the air pressure balance in the casing 3 and prevents dust and impurities in the outside air from directly entering the equipment, thereby improving the dustproof performance of the equipment.
[0031] During the rotation of the fan blade 68, the auxiliary strip 53, in conjunction with the auxiliary groove 54, provides an airflow channel for the airflow in the housing 3, improving the heat dissipation of the equipment. The arc-shaped design of the outer wall of the auxiliary strip 53 prevents the entry of external dust and impurities, giving the housing 3 waterproof properties. Water is discharged under the action of the outer wall of the auxiliary strip 53, preventing water from entering the equipment and improving its waterproof properties. When the equipment needs maintenance, the components inside the housing 3 can be maintained by facing the mounting plate 8, or the auxiliary components 5 can be maintained by disassembling the auxiliary plate 51, improving the convenience of equipment maintenance and inspection and enriching the functionality of the equipment.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency heat-dissipating OLED backlight source comprising a mounting frame (1), characterized in that: The inner wall of the mounting frame (1) is fixedly installed with a display screen (2), the rear surface of the display screen (2) is fixedly installed with a backlight source plate (21), the rear surface of the mounting frame (1) is fixedly installed with a machine shell (3), the inside of the machine shell (3) is provided with a heat dissipation assembly (6), the rear surface of the machine shell (3) is fixedly installed with a mounting plate (8), the rear surface of the mounting plate (8) is provided with an auxiliary assembly (5) at both ends, the rear surface of the mounting plate (8) is fixedly installed with a motor (4) at the shaft center, the heat dissipation assembly (6) comprises a heat dissipation plate (61), the left surface of the heat dissipation plate (61) is provided with two groups of positioning grooves (62), the right surface of the heat dissipation plate (61) is fixedly connected with a positioning column (66), and the rear surface of the heat dissipation plate (61) is fixedly connected with a plurality of evenly distributed heat dissipation fins (64).
2. The high-efficiency heat-dissipation OLED backlight source according to claim 1, characterized in that: The auxiliary assembly (5) comprises an auxiliary plate (51), and the rear surface of the auxiliary plate (51) is fixedly connected with a plurality of auxiliary strips (53).
3. The high-efficiency heat-dissipation OLED backlight source according to claim 1, characterized in that: The output shaft of the motor (4) is fixedly installed with a fan blade (68), and the lower surface of the machine shell (3) is detachably connected with a dust screen (69).
4. The high-efficiency heat-dissipation OLED backlight according to claim 1, characterized in that: The positioning column (66) is clamped in the inner wall of the positioning groove (62).
5. The high-efficiency heat-dissipation OLED backlight according to claim 1, characterized in that: The left and right surfaces of the heat dissipation fin (64) are provided with a plurality of evenly distributed heat dissipation grooves (65).
6. The high-efficiency heat-dissipation OLED backlight according to claim 2, characterized in that: The front surface of the auxiliary plate (51) and the rear surface of the backlight source plate (21) are in contact with each other.
7. The high efficiency heat dissipating OLED backlight of claim 2, wherein: The outer wall of the auxiliary strip (53) is in a semicircular arc structure, the inside of the auxiliary strip (53) is in a hollow structure, and the top corner of the outer surface of the auxiliary strip (53) is in a round corner structure.
8. The high-efficiency heat-dissipating OLED backlight according to claim 1, characterized in that: The output shaft of the motor (4) penetrates through the front surface of the mounting plate (8).
9. The high efficiency heat dissipating OLED backlight of claim 1, wherein: The heat dissipation plate (61) is detachably connected to the rear surface of the backlight source plate (21) through the fixing bolts (63).
10. The high-efficiency heat-dissipating OLED backlight according to claim 2, characterized in that: The auxiliary plate (51) is detachably connected in the inner wall of the mounting plate (8) through the auxiliary bolts (52).