A display device having a backlight assembly

Abstract

This utility model relates to the field of backlight technology, specifically a display device with a backlight assembly. The utility model includes a housing, within which a backlight body is installed. A screen frame is slidably mounted on the surface of the housing, and a screen is installed within the screen frame. A light guide device is provided on the surface of the backlight body. The light guide device includes a fixing frame, which is fixedly connected to the surface of the backlight body. Placement holes are provided on both sides of the fixing frame, and prisms are slidably connected to the surfaces of the two placement holes. The prisms are slidably connected to the surface of the backlight body. This invention solves the problems of insufficient light concentration and brightness emitted by the backlight body, or uneven light diffusion within the prisms, which lead to unclear display of information on the screen under sunlight or uneven brightness, thus affecting the normal and accurate transmission of information by the screen.

Description

Technical Field

[0001] This utility model relates to the field of backlight technology, and in particular to a display device having a backlight component. Background Technology

[0002] With the continuous advancement of technology, display devices are playing an increasingly important role in people's lives and work. From everyday mobile phones and tablets to billboards and information boards in public places, the performance and display effect of display devices directly affect the transmission of information and the user experience.

[0003] With the development of light-emitting diode (LED) technology, LED backlights have gradually become the mainstream in the market. However, existing LED backlights still face challenges in certain scenarios, such as outdoor information board displays in strong light environments. Outdoor ambient light is complex and intense, and ordinary backlights struggle to provide sufficient brightness and contrast, making the information on the information board difficult to read clearly under strong light, severely affecting the effective transmission of information. Furthermore, for information boards that need to display large amounts of complex information, existing backlight components cannot optimize brightness, color, and other aspects for different types of information, resulting in poor readability.

[0004] The inventors believe that the following defects often exist: the light emitted by the backlight body is not concentrated enough or bright enough, or the light from the backlight body is not evenly diffused in the prism, which makes it difficult for the information on the screen to be clearly displayed in sunlight, or causes uneven brightness, resulting in problems affecting the normal and accurate transmission of information on the screen; therefore, in order to solve the above problems, a display device with a backlight component is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies where information on the screen is difficult to clearly display under sunlight, or uneven brightness occurs, affecting the normal and accurate transmission of information by the screen. Therefore, this invention proposes a display device with a backlight component.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a display device with a backlight assembly, comprising a device housing, a backlight body installed inside the device housing, a screen frame slidably mounted on the surface of the device housing, a screen installed inside the screen frame, a light guide device provided on the surface of the backlight body, the light guide device including a fixing frame, the fixing frame being fixedly connected to the surface of the backlight body, placement holes being provided on both sides of the fixing frame, and prisms slidably connected to the surfaces of the two placement holes.

[0007] The prism is slidably connected to the surface of the backlight body. The surface of the prism is provided with diffusion dots. Both sides of the fixing frame are fixedly connected with screws, and the arc surface of the screws is threaded with a blocking block.

[0008] The aforementioned components achieve the following effects: by setting up a light guide device, the angle of the light emitted by the backlight body can be precisely adjusted, so that the light is more concentrated and directed onto the screen, improving the brightness and contrast of the front. At the same time, the diffusion dots on the prism are distributed according to the principle of light propagation, ensuring that the light is evenly diffused within the prism. This avoids insufficient concentration or brightness of the light emitted by the backlight body, or uneven diffusion of the light within the prism, which would otherwise make the information on the screen difficult to display clearly in sunlight or cause uneven brightness, thus affecting the normal and accurate transmission of information on the screen and improving the practicality of the device.

[0009] Preferably, a sliding rod is slidably inserted into the blocking block, one end of the sliding rod is fixedly connected to a square plate, a square groove is opened on one side of the blocking block, the size of the square groove of the blocking block is adapted to the size of the square plate, a first spring is sleeved on the arc surface of the sliding rod, and the square plate abuts against one side of the prism.

[0010] The effect achieved by the above components is to reduce the slight wobbling of the prism within the placement hole and fixing frame, thereby improving the stability of the prism when adjusting the light from the backlight body.

[0011] Preferably, a rubber ring is fixedly connected to the surface of the square groove of the blocking block, and the arc surface of the sliding rod is slidably connected to the rubber ring.

[0012] The effect achieved by the above components is to slow down the movement speed of the sliding rod, while reducing...

[0013] The wobbling causes the sliding rod to slide unintentionally, which has a certain damping effect.

[0014] Preferably, the surface of the backlight body is provided with a dimming film, and the dimming film is made of an electrochromic material.

[0015] The effects achieved by the above components are as follows: the dimming film is made of electrochromic material and is connected to the screen's control system. It can adjust the light transmittance of the dimming film in real time according to changes in ambient light intensity and displayed content. When the ambient light is strong, it automatically reduces the light transmittance to enhance the contrast of the displayed content. When a large area of ​​black or dark color appears in the screen display, it appropriately reduces the light transmittance to reduce light leakage and improve the purity of black display.

[0016] Preferably, the screen frame is provided with disassembly devices on both sides, and the disassembly devices include two connecting plates.

[0017] The two connecting plates are fixedly connected to both sides of the screen frame, and sliding frames are fixedly connected to both sides of the device housing. The surface of the connecting plate is slidably connected to the sliding frame, and one side of the connecting plate is slidably connected to the device housing. A fixing rod is fixedly connected to the surface of the sliding frame, and an operating plate is slidably connected to the arc surface of the fixing rod. A plug rod is fixedly connected to one side of the operating plate, and a plug hole is opened on the surface of the connecting plate.

[0018] The effect achieved by the above components is as follows: by setting up a disassembly device, the device shell and screen frame can be quickly disassembled and assembled. This avoids the situation where the connection between the device shell and screen frame is too complicated when the backlight body or prism needs to be replaced or repaired, which would cause the staff to have to find suitable tools and spend a lot of time disassembling, thus increasing the workload of the staff and improving the practicality of the device.

[0019] Preferably, a limiting plate is fixedly connected to the end of the fixing rod away from the sliding frame, and the size of the insertion rod is adapted to the size of the insertion hole of the connecting plate.

[0020] The effect achieved by the above components is that the limiting plate restricts the maximum sliding distance of the operating plate on the arc surface of the fixed rod, thus preventing the operating plate from detaching from the arc surface of the fixed rod due to excessive pulling force when the operator pulls it.

[0021] Preferably, a second spring is fitted onto the arc surface of the fixing rod, and the two ends of the second spring are fixedly connected to the operating plate and the sliding frame, respectively.

[0022] The effect achieved by the above components is that the second spring improves the stability of the insertion rod when it limits the connection plate, thereby improving the stability of the insertion rod when it limits the screen frame.

[0023] In summary, the beneficial effects of this utility model are as follows:

[0024] 1. In this utility model, by setting a light guide device, the angle of the light emitted by the backlight body can be precisely adjusted, so that the light is more concentrated and directed onto the screen, thereby improving the brightness and contrast of the front. At the same time, the diffusion dots on the prism are distributed according to the principle of light propagation, ensuring that the light is evenly diffused within the prism. This avoids insufficient concentration or brightness of the light emitted by the backlight body, or uneven diffusion of the light within the prism, which would otherwise make the information on the screen difficult to display clearly in sunlight or cause uneven brightness, thus affecting the normal and accurate transmission of information on the screen and improving the practicality of the device.

[0025] 2. In this utility model, by setting a disassembly device, the device shell and screen frame can be quickly disassembled and assembled. This avoids the situation where the connection between the device shell and screen frame is too complicated when the backlight body or prism needs to be replaced or repaired, which would cause the staff to have to find suitable tools and spend a lot of time disassembling, thus increasing the workload of the staff and improving the practicality of the device. Attached Figure Description

[0026] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0027] Figure 2 is an anatomical diagram of Figure 1 in this utility model;

[0028] Figure 3 is a schematic diagram of the light guiding device in this utility model;

[0029] Figure 4 is an enlarged view of section B in Figure 3 of this utility model;

[0030] Figure 5 is a partial structural schematic diagram of the light guiding device in this utility model.

[0031] Figure 6 shows the present invention. Figure 2 Enlarged view of point A.

[0032] Legend: 1. Equipment housing; 2. Backlight body; 3. Screen frame; 4. Screen; 5. Light guide device; 6. Disassembly device; 501. Fixing frame; 502. Placement hole; 503. Prism; 504. Screw; 505. Blocking block; 506. Sliding rod; 507. Square plate; 508. First spring; 509. Rubber ring; 510. Dimming film; 61. Connecting plate; 62. Sliding frame; 63. Fixing rod; 64. Operation panel; 65. Insert rod; 66. Limiting plate; 67. Second spring. Detailed Implementation

[0033] Reference Figure 1 and Figure 2As shown, this utility model provides a technical solution: a display device with a backlight assembly, including a device housing 1, a backlight body 2 installed inside the device housing 1, a screen frame 3 slidably mounted on the surface of the device housing 1, a screen 4 installed inside the screen frame 3, and a light guide device 5 provided on the surface of the backlight body 2. By setting the light guide device 5, the light emitted by the backlight body 2 can be precisely adjusted at an angle, so that the light is more concentrated and directed onto the screen 4, improving the brightness and contrast of the front. At the same time, the diffusion dots on the prism 503 are distributed according to the principle of light propagation to maintain... The prism 503 ensures uniform light diffusion, preventing insufficient light concentration or brightness from the backlight body 2, or uneven light diffusion within the prism 503. This avoids situations where information on the screen 4 is difficult to clearly display in sunlight, or uneven brightness occurs, affecting the accurate information transmission of the screen 4 and improving the device's practicality. The screen frame 3 is equipped with disassembly devices 6 on both sides, enabling quick disassembly and assembly of the device housing 1 and the screen frame 3, eliminating the need for personnel to manually disassemble or assemble the backlight body 2 or the prism.

[0034] When 503 is replaced or repaired, the connection between the equipment housing 1 and the screen frame 3 is too complicated, which forces the staff to find suitable tools and spend a lot of time disassembling it, thus increasing the workload of the staff and improving the practicality of the device.

[0035] The specific settings and functions of its light guide device 5 and disassembly device 6 will be explained below.

[0036] Reference Figure 3 , Figure 4 and Figure 5 As shown in this embodiment: the light guide device 5 includes a fixing frame 501, which fixes...

[0037] The frame 501 is fixedly connected to the surface of the backlight body 2, and placement holes 502 are provided on both sides of the fixed frame 501.

[0038] Prisms 503 are slidably connected to the surfaces of the two placement holes 502. Prisms 503 are slidably connected to the surface of the backlight body 2. The surface of prisms 503 is provided with diffusion dots. Screws 504 are fixedly connected to both sides of the fixing frame 501. A blocking block 505 is threadedly connected to the arc surface of the screw 504. A sliding rod 506 is slidably inserted into the blocking block 505.

[0039] A square plate 507 is fixedly connected to one end of the sliding rod 506. A square groove is provided on one side of the blocking block 505, and the size of the square groove of the blocking block 505 matches the size of the square plate 507. A first spring 508 is fitted on the arc surface of the sliding rod 506. The square plate 507 abuts against one side of the prism 503. When the operator places the prism 503 into the placement hole 502, the blocking block 505 is rotated. The blocking block 505 moves along the arc surface of the screw 504 until the blocking block 505 is parallel to the placement hole 502. At this time, the rebound force of the first spring 508 causes the sliding rod 506 to slide within the blocking block 505. At the same time, the sliding rod 506 drives the square plate 507 to move until the square plate 507 abuts against one side of the prism 503. This achieves the effect of reducing the slight shaking of the prism 503 within the placement hole 502 and the fixing frame 501, so as to improve the light adjustment of the backlight body 2 by the prism 503. For stability, a rubber ring 509 is fixedly connected to the surface of the square groove of the blocking block 505. The arc surface of the sliding rod 506 is slidably connected to the rubber ring 509. The binding force of the rubber ring 509 wraps around the arc surface of the sliding rod 506, thereby slowing down the movement speed of the sliding rod 506 and reducing the unintentional sliding caused by shaking, thus providing a certain damping effect. The surface of the backlight body 2 is provided with a dimming film 510. The dimming film 510 is made of electrochromic material. The dimming film 510 is connected to the control system of the screen 4 and can adjust the light transmittance of the dimming film 510 in real time according to the changes in ambient light intensity and display content. When the ambient light is strong, the light transmittance is automatically reduced to enhance the contrast of the display content. When a large area of ​​black or dark color appears in the display of the screen 4, the light transmittance is appropriately reduced to reduce light leakage and improve the purity of black display.

[0040] Reference Figure 6As shown, specifically, the disassembly device 6 includes two connecting plates 61, which are fixedly connected to both sides of the screen frame 3. Sliding frames 62 are fixedly connected to both sides of the equipment housing 1. The surface of the connecting plate 61 is slidably connected to the sliding frame 62, and one side of the connecting plate 61 is slidably connected to the equipment housing 1. A fixing rod 63 is fixedly connected to the surface of the sliding frame 62. An operating plate 64 is slidably connected to the arc surface of the fixing rod 63. A plug rod 65 is fixedly connected to one side of the operating plate 64. An insertion hole is provided on the surface of the connecting plate 61. A limit plate 66 is fixedly connected to the end of the fixing rod 63 away from the sliding frame 62. The size of the plug rod 65 matches the size of the insertion hole in the connecting plate 61. When the operator pulls the operating plate 64, the operating plate 64 slides on the arc surface of the fixing rod 63. At this time, the limit... The position plate 66 effectively limits the maximum sliding distance of the operation plate 64 on the arc surface of the fixed rod 63, preventing the operation plate 64 from detaching from the arc surface of the fixed rod 63 due to excessive pulling force when the operator pulls it. The arc surface of the fixed rod 63 is fitted with a second spring 67, the two ends of which are fixedly connected to the operation plate 64 and the sliding frame 62, respectively. When the operator releases the operation plate 64, the rebound force of the second spring 67 causes the operation plate 64 to slide on the arc surface of the fixed rod 63. The operation plate 64 drives the insertion rod 65 to move until the insertion rod 65 is inserted into the insertion hole of the connecting plate 61. At this time, the second spring 67 improves the stability of the insertion rod 65 when it limits the connecting plate 61, thereby improving the stability of the insertion rod 65 when it limits the screen frame 3.

[0041] Working principle: First, the operator places the prism 503 into the placement holes 502 on both sides of the fixed frame 501. Since the fixed frame 501 is fixedly connected to the backlight body 2, the prism 503 also establishes a sliding connection with the surface of the backlight body 2. Then, the blocking block 505 is rotated. Because the blocking block 505 is threadedly connected to the screw 504, the blocking block 505 makes a threaded movement on the arc surface of the screw 504 when rotated until it is parallel to the placement hole 502. At this time, the first spring 508 sleeved on the arc surface of the sliding rod 506 exerts its restoring force, causing the sliding rod 506 to slide within the blocking block 505. The sliding rod 506 moves, causing the square plate 507, which is fixedly connected at one end, to move until the square plate 507 is tightly abutted against one side of the prism 503. This reduces the slight wobbling that the prism 503 may experience within the placement hole 502 and the fixing frame 501, improving the stability of the prism 503 when adjusting the light from the backlight body 2. During the movement of the sliding rod 506, the rubber ring 509 fixedly connected to the square groove surface of the blocking block 505 wraps around the arc surface of the sliding rod 506 with its own binding force, slowing down the movement speed of the sliding rod 506 and reducing unintentional sliding caused by wobbling.

[0042] It provides a damping effect. At the same time, the dimming film 510 on the surface of the backlight body 2, which is made of electrochromic material and connected to the control system of the screen 4, can adjust the transmittance in real time according to the changes in ambient light intensity and display content. When the ambient light is strong, it automatically reduces the transmittance to enhance the contrast of the display content. When the screen 4 displays a large area of ​​black or dark tones, it appropriately reduces the transmittance to reduce light leakage and improve the purity of black display. It works in conjunction with the prism 503 to optimize the light propagation of the backlight body 2 and the display effect of the screen 4.

[0043] When the screen frame 3 needs to be disassembled, the operator pulls the operating plate 64, which slides on the arc surface of the fixing rod 63. During this process, the limiting plate 66 restricts the maximum sliding distance of the operating plate 64 to prevent it from detaching from the arc surface of the fixing rod 63 due to excessive pulling. At the same time, the pulling of the operating plate 64 stretches the second spring 67 fitted on the arc surface of the fixing rod 63. As the operating plate 64 moves, the connected insertion rod 65 is pulled out from the insertion hole of the connecting plate 61, releasing the limitation on the connecting plate 61. Since the connecting plate 61 is fixed to the screen frame 3 and to the equipment housing 1 and the sliding frame, the operation is complete. 62 is connected, and the screen frame 3 can be disassembled along the sliding frame 62. After the position of the screen frame 3 is adjusted or the relevant operation is completed, the operator releases the operating plate 64. The rebound force of the second spring 67 drives the operating plate 64 to slide in the opposite direction along the fixed rod 63. The operating plate 64 drives the insertion rod 65 to move until the insertion rod 65 is re-inserted into the corresponding insertion hole of the connecting plate 61, thereby achieving stable limiting of the connecting plate 61, thus improving the stability of limiting the screen frame 3. This completes the limiting and disassembly related operation process of the entire device for the screen frame 3, facilitating the maintenance and replacement of the screen frame 3.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A display device having a backlight assembly, comprising a device housing (1), characterized in that: The device housing (1) is equipped with a backlight body (2), and a screen frame (3) is slidably mounted on the surface of the device housing (1). A screen (4) is installed inside the screen frame (3). A light guide device (5) is provided on the surface of the backlight body (2). The light guide device (5) includes a fixing frame (501). The fixing frame (501) is fixedly connected to the surface of the backlight body (2). Placement holes (502) are provided on both sides of the fixing frame (501). Prisms (503) are slidably connected to the surfaces of the two placement holes (502). The prisms (503) are slidably connected to the surface of the backlight body (2). The surface of the prisms (503) is provided with diffusion dots. Screws (504) are fixedly connected to both sides of the fixing frame (501). A blocking block (505) is threadedly connected to the arc surface of the screws (504).

2. A display device with a backlight assembly according to claim 1, characterized in that: A sliding rod (506) is slidably inserted inside the blocking block (505). A square plate (507) is fixedly connected to one end of the sliding rod (506). A square groove is opened on one side of the blocking block (505). The size of the square groove of the blocking block (505) is adapted to the size of the square plate (507). A first spring (508) is sleeved on the arc surface of the sliding rod (506). The square plate (507) abuts against one side of the prism (503).

3. A display device with a backlight assembly according to claim 2, characterized in that: A rubber ring (509) is fixedly connected to the surface of the square groove of the blocking block (505), and the arc surface of the sliding rod (506) is slidably connected to the rubber ring (509).

4. A display device with a backlight assembly according to claim 1, characterized in that: The backlight body (2) has a dimming film (510) on its surface, and the dimming film (510) is made of electrochromic material.

5. A display device with a backlight assembly according to claim 1, characterized in that: The screen frame (3) is provided with disassembly devices (6) on both sides. The disassembly devices (6) include two connecting plates (61). The two connecting plates (61) are fixedly connected to the two sides of the screen frame (3). The two sides of the equipment shell (1) are fixedly connected with sliding frames (62). The surface of the connecting plate (61) is slidably connected to the sliding frame (62). One side of the connecting plate (61) is slidably connected to the equipment shell (1). The surface of the sliding frame (62) is fixedly connected with a fixing rod (63). The arc surface of the fixing rod (63) is slidably connected with an operation plate (64). One side of the operation plate (64) is fixedly connected with a plug rod (65). The surface of the connecting plate (61) is provided with a plug hole.

6. A display device with a backlight assembly according to claim 5, characterized in that: The end of the fixed rod (63) away from the sliding frame (62) is fixedly connected to the limiting plate (66), and the size of the insertion rod (65) is adapted to the size of the insertion hole of the connecting plate (61).

7. A display device with a backlight assembly according to claim 5, characterized in that: The arc surface of the fixed rod (63) is fitted with a second spring (67), and the two ends of the second spring (67) are fixedly connected to the operating plate (64) and the sliding frame (62) respectively.

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