Backlight intelligent control instrument
By setting multiple light-emitting areas on the backlight panel and controlling the brightness through a circuit board, the problem of brightness not adapting to the environment in the existing technology is solved, and the display screen achieves high contrast and clarity in different environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO VIKEER ELECTRONICS
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
The LED beads on the existing backlight board emit light uniformly, resulting in the same brightness in different areas. This makes it difficult to improve the display contrast, affects visual perception and display clarity, and the brightness does not adapt to changes in the environment during the day and at night.
Multiple light-emitting areas are set on the backlight panel, and the brightness of each light-emitting area is controlled by a circuit board to achieve brightness adjustment of different areas and adapt to the brightness requirements of different environments.
It improves the contrast ratio of different areas of the display screen, enhances the visual experience, ensures good brightness adaptability of the display screen in different environments, and improves the clarity of the displayed content.
Smart Images
Figure CN224190608U_ABST
Abstract
Description
Backlight Intelligent Control Instrument Technical Field
[0001] This utility model belongs to the field of intelligent control instruments, specifically relating to a backlight intelligent control instrument. Background Technology
[0002] Display instruments are among the most common accessories in the field of electronic equipment.
[0003] Commonly, backlight panels are used to illuminate the display screen. However, the LED beads on existing backlight panels emit light uniformly, resulting in similar brightness in different areas. This makes it difficult to improve the display contrast between different areas, leading to poor visual perception. Furthermore, the brightness is basically the same during the day and at night, resulting in insufficient brightness during the day and excessive brightness at night, which affects the clarity of the display. Summary of the Invention
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a backlight intelligent control instrument that sets up multiple light-emitting zones on a backlight panel, so as to improve the display contrast of different areas or the brightness under different environments by controlling the brightness of different light-emitting zones through a circuit board.
[0005] To achieve the above objectives, the present invention provides the following technical solution: including a housing and a circuit board, a backlight board, and a display screen disposed on the housing, wherein the backlight board and the display screen are both electrically connected to the circuit board, and the backlight board emits light to illuminate the display screen; the backlight board is provided with multiple light-emitting areas, and the circuit board controls the brightness of each of the light-emitting areas respectively.
[0006] The present invention is further configured such that each of the light-emitting areas is provided with at least one LED light.
[0007] The present invention is further configured such that: the number of LEDs in each of the light-emitting areas is 1; the spacing between adjacent LEDs is k, where 3mm≤k≤20mm.
[0008] The present invention is further configured such that the light-emitting areas are arranged in a matrix.
[0009] The present invention is further configured such that: the housing includes a detachably connected backlight bracket and a rear cover plate; a first assembly cavity is provided on the front side of the backlight bracket for mounting the backlight panel and / or the display screen; the rear cover plate is located on the rear side of the backlight bracket; a second assembly cavity covered by the backlight bracket is provided on the front side of the rear cover plate; and the circuit board is disposed in the second assembly cavity.
[0010] The present invention is further configured such that: the backlight bracket is made of magnesium-aluminum alloy; and / or, the backlight bracket is formed by die casting of metal material; and / or, the surface of the backlight bracket is coated with frosted paint.
[0011] The present invention is further configured such that: the backlight bracket has an exposed area and an assembly area on its rear side, and the rear cover plate is assembled to the assembly area to cover the assembly area; and / or, the backlight bracket and the rear cover plate are fixedly connected by bolts.
[0012] The present invention is further configured such that: the area of the exposed area is s1, the area of the assembly area is s2, and s1≥s2.
[0013] The present invention is further configured such that: the display screen adopts a FOG screen; and / or, a glass cover is provided on the side of the display screen away from the backlight panel; and / or, an optical film is provided between the display screen and the backlight panel.
[0014] The present invention is further configured such that: a first adhesive layer is provided between the display screen and the glass cover to fix the display screen and the glass cover, the first adhesive layer being OCA; and / or, a second adhesive layer is provided between the glass cover and the housing to fix the glass cover and the housing, the second adhesive layer being structural adhesive; and / or, the optical film includes a QD film and / or a light-diffusing film and / or a brightness-enhancing film and / or a privacy film; and / or, the distance between the backlight panel and the optical film is d, where d≤3mm.
[0015] By adopting the above technical solutions, 1. The circuit board can increase the power of some light-emitting areas to improve the brightness of the corresponding light-emitting areas, and decrease the power of some light-emitting areas to reduce the brightness of the corresponding light-emitting areas, depending on the actual usage conditions, such as the need for high-brightness functional areas and low-brightness background areas. This difference in brightness between different areas of the light-emitting area will result in different brightness levels in different areas of the display screen, making the display contrast more obvious. For example, functional areas are more easily noticed, and the background area has less impact on functional areas, thus improving the visual experience. 2. The circuit board can also increase or decrease the power of the light-emitting areas to improve or decrease the overall brightness of the light-emitting areas, depending on the actual usage conditions, such as daytime in bright environments and nighttime in dark environments. This increase or decrease in the brightness of the light-emitting areas will improve or decrease the brightness of the display screen. For example, the display screen is brighter and clearer during the day, and darker at night, making it less prone to halos that could affect the clarity of the displayed content. Thus, the different brightness levels of the display screen under different conditions can improve the clarity of the displayed content. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 is an assembly diagram of a specific embodiment of this utility model;
[0018] Figure 2 is an exploded view of a specific embodiment of this utility model;
[0019] Figure 3 is an exploded view of a specific embodiment of this utility model;
[0020] Figure 4 is a cross-sectional view of a specific embodiment of this utility model;
[0021] Figure 5 is an enlarged view of A in Figure 4;
[0022] Figure 6 is an enlarged view of B in Figure 4;
[0023] Figure 7 is a circuit diagram of a specific embodiment of this utility model;
[0024] Figure 8 is a circuit diagram of a specific embodiment of this utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Shell;
[0027] 11. Backlight bracket; 12. Back cover;
[0028] 111. First assembly cavity; 112. Exposed area; 113. Assembly area; 114. First internal threaded post; 115. Second internal threaded post; 121. Second assembly cavity; 122. Mounting part;
[0029] 2. Circuit board;
[0030] 3. Backlight panel;
[0031] 31. LED lights;
[0032] 4. Display screen;
[0033] 5. Glass cover plate;
[0034] 6. Optical films;
[0035] 71. First adhesive layer; 72. Second adhesive layer. Detailed Implementation
[0036] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.
[0037] As shown in Figures 1-6, this utility model discloses a backlight intelligent control instrument, including a housing 1 and a circuit board 2, a backlight board 3 and a display screen 4 disposed on the housing 1. The backlight board 3 and the display screen 4 are both electrically connected to the circuit board 2. The display screen 4 displays corresponding content under the signal control of the circuit board 2, and the backlight board 3 emits light under the control of the circuit board 2 to illuminate the display screen 4.
[0038] Preferably, the backlight panel 3 is provided with multiple light-emitting areas, and the circuit board 2 controls the brightness of each light-emitting area respectively.
[0039] Therefore, 1. Circuit board 2, depending on the actual usage, such as the need for bright functional areas and low-brightness background areas, can increase the power of some light-emitting areas to improve the brightness of the corresponding light-emitting areas, and decrease the power of some light-emitting areas to reduce the brightness of the corresponding light-emitting areas. Thus, the different brightness of the light-emitting areas in different areas will result in different brightness of different areas of display screen 4, making the display contrast of different areas of display screen 4 more obvious. For example, functional areas are easier to notice, and the background area has less impact on functional areas, thus improving the visual experience. 2. Circuit board 2 can also increase or decrease the power of the light-emitting areas to improve or decrease the overall brightness of the light-emitting areas according to the actual usage, such as daytime in bright environments and nighttime in dark environments. Thus, the increase or decrease in the brightness of the light-emitting areas will improve or decrease the brightness of display screen 4. For example, display screen 4 is brighter and displays content more clearly during the day, and darker at night, making it less prone to halos that may affect the clarity of the displayed content. Thus, the different brightness of display screen 4 under different conditions can improve the clarity of the displayed content.
[0040] Each light-emitting area is equipped with at least one LED light 31, which is a lamp bead, so that the circuit board 2 controls the brightness of the light-emitting area by controlling the brightness of the LED light 31.
[0041] Specifically, in this embodiment, each light-emitting area has one LED lamp 31, meaning that each LED lamp 31 is individually controlled by the circuit board 2.
[0042] In this embodiment, the number of LED lights 31 is greater than 1000, and the LED lights 31 are arranged in a matrix, that is, the light-emitting areas are arranged in a matrix. Since the number of LED lights 31 is large, the spacing between adjacent LED lights 31 is set to k, where 3mm≤k≤20mm.
[0043] Therefore, by laying out a large number of LED lights 31 with small spacing, the backlight panel 3 can control the changes in brightness of the display screen 4 more precisely and in a wider variety.
[0044] Specifically, in this embodiment, the housing 1 includes a detachably connected backlight bracket 11 and a rear cover plate 12. The backlight bracket 11 has a first assembly cavity 111 on its front side, which is used to install the backlight panel 3 and the display screen 4. The rear cover plate 12 is located on the rear side of the backlight bracket 11, and a second assembly cavity 121 covered by the backlight bracket 11 is provided on the front side of the rear cover plate 12. The circuit board 2 is disposed in the second assembly cavity 121.
[0045] Therefore, the circuit board 2 is installed in the separate state of the backlight bracket 11 and the back cover plate 12, and the circuit board 2 is installed in the second assembly cavity 121 by the combination of the backlight bracket 11 and the back cover plate 12. The first assembly cavity 111 on the front side of the backlight bracket 11 can be used to install and position the backlight panel 3 and the display screen 4, which improves the stability of the installation.
[0046] Preferably, the backlight bracket 11 is made of magnesium-aluminum alloy and is formed by die casting, which gives the backlight bracket 11 excellent heat dissipation capacity to effectively dissipate heat and prevent the backlight panel 3 and the display screen 4 from overheating.
[0047] The backlight bracket 11 is coated with frosted paint, which optimizes fingerprint smudges, improves visual experience, and prevents corrosion after contact with corrosive liquids.
[0048] In this embodiment, the backlight bracket 11 has an exposed area 112 and an assembly area 113 on its rear side, and the rear cover plate 12 is assembled to the assembly area 113 to cover the assembly area 113. Specifically, the area of the exposed area 112 is s1, the area of the assembly area 113 is s2, and s1 ≥ s2.
[0049] This design allows the back cover 12 to occupy less than half of the area behind the backlight bracket 11 for installation, while more of the area behind the backlight bracket 11 is exposed, resulting in better heat dissipation and a smaller overall thickness, thus improving the overall texture.
[0050] Specifically, the assembly area 113 of the backlight bracket 11 is provided with a plurality of first internal threaded posts 114 and a plurality of second internal threaded posts 115. The circuit board 2 is installed by placing it on the second internal threaded post 115, then passing the circuit board 2 through the bolt and threadedly connecting it to the second internal threaded post 115. The rear cover plate 12 is installed by placing it on the first internal threaded post 114, then passing the rear cover plate 12 through the bolt and threadedly connecting it to the first internal threaded post 114.
[0051] The rear cover plate 12 is an injection molded part. In addition, mounting parts 122 are provided on the left and right sides and the lower side of the rear cover plate 12 so that the instrument can be mounted on other structures for use.
[0052] Preferably, the display screen 4 in this embodiment is a FOG screen.
[0053] In addition, a glass cover plate 5 is provided on the front side of the display screen 4 to protect the display screen 4.
[0054] A first adhesive layer 71 is provided between the display screen 4 and the glass cover plate 5. The first adhesive layer 71 is made of OCA to stably connect the glass cover plate 5 and the display screen 4.
[0055] A second adhesive layer 72 is provided between the outer periphery of the rear side of the glass cover plate 5 and the outer periphery of the front side of the backlight bracket 11. The second adhesive layer 72 is a structural adhesive, which is used to stably connect the glass cover plate 5 and the backlight bracket 11 and to seal the first assembly cavity 111 to protect the display screen 4 and the backlight plate 3.
[0056] Furthermore, an optical film 6 is disposed between the display screen 4 and the backlight panel 3 to process the light emitted by the backlight panel 3 through the optical film 6 to illuminate the display screen 4. Specifically, the optical film 6 includes at least one of a QD film, a light-diffusing film, a brightness-enhancing film, and a privacy film. Preferably, the optical film 6 includes a QD film, a light-diffusing film, a brightness-enhancing film, and a privacy film.
[0057] Preferably, the distance between the backlight panel 3 and the optical film 6 is d, where d ≤ 3 mm, and in this embodiment, d = 2.7 mm. This makes the light more uniform on the surface.
[0058] Specifically, as shown in Figures 7 and 8, at least one MBI6353Q chip is installed on the backlight board 3 in this embodiment to connect each LED 31 to the MBI6353Q chip. The MBI6353Q chip communicates with the circuit board 2 via SPI to ultimately achieve individual control of each LED 31.
[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A backlit intelligent control instrument, characterized in that, The device includes a housing (1) and a circuit board (2), a backlight board (3) and a display screen (4) disposed on the housing (1). The backlight board (3) and the display screen (4) are electrically connected to the circuit board (2). The backlight board (3) emits light to illuminate the display screen (4). The backlight board (3) is provided with multiple light-emitting areas, and the circuit board (2) controls the brightness of each of the light-emitting areas respectively.
2. The backlight intelligent control instrument according to claim 1, characterized in that: Each of the light-emitting areas is provided with at least one LED light (31).
3. The backlight intelligent control instrument according to claim 2, characterized in that: The number of LEDs (31) in each of the light-emitting areas is 1; the spacing between adjacent LEDs (31) is k, where 3mm≤k≤20mm.
4. The backlight intelligent control instrument according to any one of claims 1-3, characterized in that: The light-emitting areas are arranged in a matrix.
5. The backlight intelligent control instrument according to claim 1, characterized in that: The housing (1) includes a detachably connected backlight bracket (11) and a rear cover plate (12). The backlight bracket (11) has a first assembly cavity (111) on its front side, which is used for mounting the backlight panel (3) and / or the display screen (4). The rear cover plate (12) is located behind the backlight bracket (11), and the front side of the rear cover plate (12) has a second assembly cavity (121) covered by the backlight bracket (11). The circuit board (2) is disposed in the second assembly cavity (121).
6. The backlight intelligent control instrument according to claim 5, characterized in that: The backlight bracket (11) is made of magnesium-aluminum alloy; and / or, the backlight bracket (11) is formed by die casting of metal material; and / or, the surface of the backlight bracket (11) is coated with frosted paint.
7. The backlight intelligent control instrument according to claim 5, characterized in that: The backlight bracket (11) has an exposed area (112) and an assembly area (113) on its rear side. The rear cover plate (12) is assembled to the assembly area (113) to cover the assembly area (113); and / or, the backlight bracket (11) and the rear cover plate (12) are fixedly connected by bolts.
8. The backlight intelligent control instrument according to claim 7, characterized in that: The area of the exposed area (112) is s1, and the area of the assembly area (113) is s2, where s1 ≥ s2.
9. The backlight intelligent control instrument according to claim 1, characterized in that: The display screen (4) is an FOG screen; and / or, the display screen (4) is provided with a glass cover plate (5) on the side away from the backlight plate (3); and / or, an optical film (6) is provided between the display screen (4) and the backlight plate (3).
10. The backlight intelligent control instrument according to claim 9, characterized in that: A first adhesive layer (71) is provided between the display screen (4) and the glass cover plate (5) to fix the display screen (4) and the glass cover plate (5) in place, and the first adhesive layer (71) is made of OCA; and / or, a second adhesive layer (72) is provided between the glass cover plate (5) and the housing (1) to fix the glass cover plate (5) and the housing (1) in place, and the second adhesive layer (72) is made of structural adhesive; and / or, the optical film (6) includes a QD film and / or a light-diffusing film and / or a light-enhancing film and / or a privacy film; and / or, the distance between the backlight plate (3) and the optical film (6) is d, where d≤3mm.