LED backlight structure

Abstract

The embodiment of the utility model belongs to the technical field of LED backlight. The utility model further relates to an LED backlight structure which comprises a segment code display screen main body and a backlight circuit board located below the segment code display screen main body, the segment code display screen main body is provided with a plurality of segment code main bodies, the backlight circuit board is provided with a plurality of mini LED lamp beads, the mini LED lamp beads are divided into a plurality of groups, and the mini LED lamp beads are connected with the segment code display screen main body. And the positions of the plurality of groups of mini LED lamp beads correspond to the positions of the plurality of segment code main bodies respectively. The mini LED lamp beads and the segment code bodies are arranged, and the positions of the multiple sets of mini LED lamp beads correspond to the positions of the multiple segment code bodies correspondingly, so that independent brightness control over the mini LED lamp beads corresponding to each segment code body is achieved, namely, the design that each segment code body and the corresponding set of mini LED lamp beads are started and stopped at the same time is adopted; meanwhile, due to the fact that the mini LED lamp beads are not arranged in the non-display area on the segment code display screen body, the non-display area can keep sufficient darkness, and therefore the display contrast ratio is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED backlight, and more specifically, to an LED backlight structure. Background Art

[0002] With the continuous development of electronic display technology, segment code display screens still occupy an important position in various applications due to their simplicity, reliability and cost-effectiveness. However, traditional segment code display screens face a significant challenge when displaying information: the brightness of the backlight source is usually adjusted uniformly, and it is impossible to control each display segment individually;

[0003] Under the unified backlight brightness adjustment, when the segment code display screen displays certain characters or patterns, the backlight leakage problem becomes particularly prominent. Since all display segments share the same backlight brightness, even if some segment codes are in the non-display state, the backlight source behind them is still turned on, resulting in unnecessary brightness overflow, namely backlight leakage, which not only reduces the display contrast, making the displayed information visually unclear, but also wastes energy and reduces energy efficiency; in addition, in a strong light environment, the unified backlight brightness adjustment method further amplifies this problem. Due to the strong external light, if the backlight brightness is not high enough, the displayed information may be submerged by the ambient light, making it difficult for users to recognize. However, if the backlight brightness is increased to meet the visibility requirements in a strong light environment, the backlight leakage problem will be aggravated, making the display effect more blurred. Therefore, we make improvements on this and propose an LED backlight structure. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present utility model is that the brightness of the backlight source is adjusted uniformly and cannot be controlled individually for each display segment, resulting in a more serious backlight leakage problem when displaying certain characters or patterns, affecting the display contrast and energy efficiency.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An LED backlight structure comprises: a segment code display screen body and a backlight circuit board located below the segment code display screen body, wherein the segment code display screen body has a plurality of segment code bodies, and a plurality of mini LED lamp beads are arranged on the backlight circuit board, wherein the plurality of mini LED lamp beads are divided into a plurality of groups, and the positions of the plurality of groups of mini LED lamp beads respectively correspond to the positions of the plurality of segment code bodies, and the present application realizes the individual brightness control of the mini LED lamp beads corresponding to each segment code body by setting the mini LED lamp beads and the segment code bodies, and the positions of the plurality of groups of mini LED lamp beads respectively correspond to the positions of the plurality of segment code bodies, that is, each segment code body and a corresponding group of mini LED lamp beads adopt a simultaneous start and stop design, and at the same time, since the non-display area on the segment code display screen body is not provided with mini LED lamp beads, the non-display area can maintain sufficient darkness, thereby improving the display contrast, and since the segment code body and the mini LED lamp beads are started and stopped at the same time, the corresponding mini LED lamp beads and the segment code body are turned off when display is not needed, so that the backlight leakage problem can be significantly reduced and the display effect can be improved; by precisely controlling each group of mini The brightness of the LED lamp beads can avoid unnecessary energy waste and improve the energy efficiency of the display screen; due to the improvement of the display contrast, the present invention can maintain a good display effect even in a strong light environment.

[0007] As an improvement of the present invention, a plurality of segment code bodies are arranged according to a preset pattern, and a plurality of groups of mini LED lamp beads are arranged in the same pattern as the segment code bodies.

[0008] As an improvement of the utility model, light blocking rings are arranged between the groups of mini LED lamp beads.

[0009] As an improved manner of the utility model, the segment code display screen body is connected to a microcontroller MCU, and the microcontroller MCU is connected to the segment code body to control the display state of the segment code body.

[0010] As an improvement of the utility model, the microcontroller MCU is connected to an LED voltage stabilization and control circuit, and the LED voltage stabilization and control circuit is connected to a mini LED lamp bead.

[0011] As an improvement of the utility model, the mini LED lamp bead is turned on and off under the control of the LED voltage stabilization and control circuit and the microcontroller MCU.

[0012] As an improved manner of the utility model, a protective member is arranged between the segment code display screen body and the backlight circuit board.

[0013] As an improved manner of the utility model, the protective member is a backlight iron frame body, and the backlight iron frame body is connected between the backlight circuit board and the outer side of the segment code display screen body.

[0014] As an improved manner of the utility model, a light intensity detection sensor is further provided on the segment code display screen body, and the light intensity detection sensor is used to detect the light intensity of the external environment.

[0015] As an improved manner of the utility model, the microcontroller MCU is also connected to a remote communication module.

[0016] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0017] In order to solve the problem that the brightness of the backlight source in the prior art is uniformly adjusted and cannot be individually controlled for each display segment, resulting in a more serious backlight leakage problem when displaying certain characters or patterns, affecting the display contrast and energy efficiency, the present application sets mini LED lamp beads and segment code bodies, and the positions of several groups of mini LED lamp beads correspond to the positions of several segment code bodies respectively, thereby realizing individual brightness control of the mini LED lamp beads corresponding to each segment code body, that is, each segment code body and its corresponding group of mini LED lamp beads adopt a simultaneous start and stop design. At the same time, since no mini LED lamp beads are set in the non-display area on the segment code display screen body, the non-display area can maintain sufficient darkness, thereby improving the display contrast. Since the segment code body and the mini LED lamp beads are started and stopped at the same time, the corresponding mini LED lamp beads and the segment code body are turned off when display is not needed, thereby significantly reducing the backlight leakage problem and improving the display effect. By accurately controlling the brightness of each group of mini LED lamp beads, unnecessary energy waste can be avoided and the energy efficiency of the display screen can be improved. Due to the improvement in display contrast, the present invention can also maintain a good display effect in a strong light environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the LED backlight provided in this application;

[0019] Figure 2 A schematic cross-sectional view of the LED backlight structure provided in this application;

[0020] Figure 3 This is a system schematic diagram of the LED backlight structure provided in this application.

[0021] Indicated in the figure:

[0022] 1. Segment code display screen body; 2. Segment code body; 3. Backlight circuit board; 4. Mini LED lamp beads; 41. Aperture ring; 5. Backlight iron frame body. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] As described in the background art, traditional segment display screens face a significant challenge when displaying information: the brightness of the backlight source is usually adjusted uniformly and cannot be controlled individually for each display segment;

[0025] Under the unified backlight brightness adjustment, when the segment code display screen displays certain characters or patterns, the backlight leakage problem becomes particularly prominent. Since all display segments share the same backlight brightness, even if some segment codes are in the non-display state, the backlight source behind them is still on, resulting in unnecessary brightness overflow, namely backlight leakage, which not only reduces the display contrast and makes the displayed information visually unclear, but also wastes energy and reduces energy efficiency. In addition, in a strong light environment, the unified backlight brightness adjustment method further amplifies this problem. Due to the strong external light, if the backlight brightness is not high enough, the displayed information may be submerged by the ambient light, making it difficult for users to recognize. However, if the backlight brightness is increased to meet the visibility requirements in a strong light environment, the backlight leakage problem will be aggravated, making the display effect more blurred.

[0026] In order to solve this technical problem, the utility model provides an LED backlight structure.

[0027] Specifically, please refer to Figure 1-Figure 3 , the LED backlight structure specifically includes:

[0028] The segment code display screen body 1 and the backlight circuit board 3 located below the segment code display screen body 1, the segment code display screen body 1 has a plurality of segment code bodies 2, a plurality of mini LED lamp beads 4 are arranged on the backlight circuit board 3, the plurality of mini LED lamp beads 4 are divided into a plurality of groups, and the positions of the plurality of groups of mini LED lamp beads 4 correspond to the positions of the plurality of segment code bodies 2 respectively.

[0029] The LED backlight structure provided by the utility model realizes individual brightness control of the mini LED lamp beads 4 corresponding to each segment code body 2 by setting mini LED lamp beads 4 and segment code bodies 2, and the positions of several groups of mini LED lamp beads 4 respectively correspond to the positions of several segment code bodies 2, that is, each segment code body 2 and its corresponding group of mini LED lamp beads 4 adopt a simultaneous start and stop design, and at the same time, since the non-display area on the segment code display screen body 1 is not provided with mini LED lamp beads 4, the non-display area can maintain sufficient darkness, thereby improving the display contrast, and since the segment code body 2 and the mini LED lamp beads 4 are started and stopped at the same time, the corresponding mini LED lamp beads 4 and the segment code body 2 are turned off when display is not needed, so that the backlight leakage problem can be significantly reduced and the display effect can be improved; by accurately controlling the brightness of each group of mini LED lamp beads 4, unnecessary energy waste can be avoided and the energy efficiency of the display screen can be improved; due to the improvement of display contrast, the present invention can maintain a good display effect even in a strong light environment.

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Embodiment 1 of the LED backlight structure of the utility model

[0034] Please refer to Figure 1-Figure 3The LED backlight structure of the utility model includes: a segment code display screen body 1 and a backlight circuit board 3 located below the segment code display screen body 1, the segment code display screen body 1 has a plurality of segment code bodies 2, a plurality of mini LED lamp beads 4 are arranged on the backlight circuit board 3, the plurality of mini LED lamp beads 4 are divided into a plurality of groups, and the positions of the plurality of groups of mini LED lamp beads 4 respectively correspond to the positions of the plurality of segment code bodies 2, the application realizes the individual brightness control of the mini LED lamp beads 4 corresponding to each segment code body 2 by setting the mini LED lamp beads 4 and the segment code body 2, and the positions of the plurality of groups of mini LED lamp beads 4 respectively correspond to the positions of the plurality of segment code bodies 2, that is, each segment code body 2 and a corresponding group of mini LED lamp beads 4 adopt a simultaneous start and stop design, and at the same time, since the non-display area on the segment code display screen body 1 is not provided with mini LED lamp beads 4, the non-display area can maintain sufficient darkness, thereby improving the display contrast, and since the segment code body 2 and the mini LED lamp beads 4 are started and stopped at the same time, the corresponding mini The LED lamp beads 4 and the segment code body 2 are turned off when display is not needed, thereby significantly reducing the backlight leakage problem and improving the display effect; by accurately controlling the brightness of each group of mini LED lamp beads 4, unnecessary energy waste can be avoided and the energy efficiency of the display screen can be improved; due to the improvement of display contrast, the present invention can maintain a good display effect even in a strong light environment.

[0035] Further, such as Figure 1 and Figure 3 As shown, several segment code bodies 2 are arranged according to a preset pattern, and several groups of mini LED lamp beads 4 are arranged in the same pattern as the segment code body 2. This arrangement allows the segment code body 2 and the mini LED lamp beads 4 to remain synchronized. When the segment code body 2 is lit, the corresponding mini LED lamp beads 4 are also lit, ensuring the synchronization and accuracy of the display of the two.

[0036] Further, such as Figure 3 As shown, light blocking rings 41 are arranged between several groups of mini LED lamp beads 4. The light blocking rings 41 can enclose the mini LED lamp beads 4 in each group together, reduce the interference of light between two adjacent groups of mini LED lamp beads 4, and make the light in each group of mini LED lamp beads 4 more concentrated, that is, the physical isolation effect of the light blocking rings 41 is utilized to confine the light of each group of mini LED lamp beads 4 therein, thereby reducing light diffusion and interference.

[0037] Further, such as Figure 3As shown, the segment code display screen body 1 is connected to a microcontroller MCU, and the microcontroller MCU is connected to the segment code body 2 to control the display state of the segment code body 2. The microcontroller MCU is used to control the state of the segment code body 2 so that the corresponding segment code body 2 is displayed or not displayed.

[0038] Further, such as Figure 3 As shown, the microcontroller MCU is connected to an LED voltage stabilization and control circuit, and the LED voltage stabilization and control circuit is connected to the mini LED lamp bead 4. The LED voltage stabilization and control circuit is used for voltage stabilization and control of the mini LED lamp bead 4.

[0039] Furthermore, the mini LED lamp bead 4 is turned on and off under the control of the LED voltage stabilization and control circuit and the microcontroller MCU, thereby achieving precise control of the mini LED lamp bead 4 and improving the display effect and energy efficiency through the synergy of the microcontroller MCU and the LED voltage stabilization and control circuit according to the corresponding usage requirements; specifically, the microcontroller MCU accurately controls the mini LED lamp bead 4 through the LED voltage stabilization and control circuit according to preset instructions or external signals, thereby realizing functions such as brightness adjustment and switch control.

[0040] Embodiment 2 of the LED backlight structure of the utility model

[0041] The LED backlight structure of the utility model is further as follows: Figure 2 As shown, a protective member is provided between the segment code display screen body 1 and the backlight circuit board 3 , and the protective member is used for supporting and protecting the segment code display screen body 1 and the backlight circuit board 3 .

[0042] Further, such as Figure 2 As shown, the protective member is a backlight iron frame body 5, which is connected between the backlight circuit board 3 and the outer side of the segment code display screen body 1. The backlight iron frame body 5 can support and protect the segment code display screen body 1 and the backlight circuit board 3.

[0043] Embodiment 3 of the LED backlight structure of the utility model

[0044] The LED backlight structure of the utility model is further provided with a light intensity detection sensor on the segment code display screen body 1, and the light intensity detection sensor is used to detect the light intensity of the external environment; according to the detected light intensity, the backlight brightness of the mini LED lamp beads 4 is adjusted to ensure the best display effect and reading experience in different lighting environments.

[0045] Furthermore, the microcontroller MCU is also connected to a remote communication module, which is used to achieve communication connection with a remote server or device; a configuration update interface allows a user or administrator to remotely modify the display content, brightness settings and other parameters of the segment code display screen body 1 to adapt to different application scenarios and changing needs. The remote communication module establishes a communication connection with a remote server or device via wired or wireless means. The user or administrator can send instructions or data to the microcontroller MCU through the remote server or device, and the MCU performs corresponding configuration updates or operations on the display screen according to the instructions or data.

[0046] When in use, the microcontroller MCU is used to control the display or non-display of the segment code body 2, and the corresponding mini LED lamp beads 4 light up when the segment code body 2 is displayed, and when the segment code body 2 is not displayed, the mini LED lamp beads 4 at the corresponding position are off, thereby achieving a high-contrast display of the segment code display screen body 1. Taking temperature display as an example, if the segment code display screen body 1 displays 07℃, the corresponding mini LED lamp beads 4 also display 07℃.

[0047] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An LED backlight structure, characterized in that: include: A segment code display screen body (1) and a backlight circuit board (3) located below the segment code display screen body (1), wherein the segment code display screen body (1) comprises a plurality of segment code bodies (2), and a plurality of mini LED lamp beads (4) are arranged on the backlight circuit board (3), wherein the plurality of mini LED lamp beads (4) are divided into a plurality of groups, and the positions of the plurality of groups of mini LED lamp beads (4) respectively correspond to the positions of the plurality of segment code bodies (2).

2. The LED backlight structure according to claim 1, characterized in that: A plurality of the segment code bodies (2) are arranged according to a preset pattern, and a plurality of groups of mini LED lamp beads (4) are arranged in the same pattern as the segment code bodies (2).

3. The LED backlight structure according to claim 1, characterized in that: Light blocking rings (41) are arranged between the groups of mini LED lamp beads (4).

4. The LED backlight structure according to claim 1, characterized in that: The segment code display screen body (1) is connected to a microcontroller MCU, and the microcontroller MCU is connected to the segment code body (2) to control the display state of the segment code body (2).

5. The LED backlight structure according to claim 4, characterized in that: The microcontroller MCU is connected to an LED voltage stabilization and control circuit, and the LED voltage stabilization and control circuit is connected to a mini LED lamp bead (4).

6. The LED backlight structure according to claim 5, characterized in that: The mini LED lamp bead (4) is turned on and off under the control of the LED voltage stabilization and control circuit and the microcontroller MCU.

7. The LED backlight structure according to claim 1, characterized in that: A protective piece is provided between the segment code display screen body (1) and the backlight circuit board (3).

8. The LED backlight structure according to claim 7, characterized in that: The protective component is a backlight iron frame body (5), and the backlight iron frame body (5) is connected between the backlight circuit board (3) and the outer side of the segment code display screen body (1).

9. The LED backlight structure according to claim 1, characterized in that: The segment code display screen body (1) is also provided with a light intensity detection sensor, which is used to detect the light intensity of the external environment.

10. The LED backlight structure according to claim 4, characterized in that: The microcontroller MCU is also connected to a remote communication module.

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