A backlight structure

Abstract

This invention proposes a backlight structure, including a light guide plate, LED lights, and a backlight reflector. The backlight reflector is inverted, enclosing the light guide plate and LED lights, with the LED lights positioned opposite the light guide plate. The backlight reflector is attached to the light guide plate. Both the upper and lower ends of the backlight reflector are bent inwards at a 90° angle. This inverted backlight reflector structure, with its 90° inward bend at both ends, encloses the light guide plate and LED lights and is attached to other optical films. This maximizes the reflection of light emitted from the LED lights into the light guide plate, ultimately emitting light from the front of the backlight, improving backlight brightness without increasing the backlight thickness.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight, in particular to a backlight structure. Background Art

[0002] The current LCD display backlight module has high requirements for backlight brightness, and also requires the backlight to be thin and light with low power consumption. Therefore, how to improve the backlight brightness without affecting the backlight thickness and power consumption is a technical problem that technical personnel have been studying and solving. Utility Model Content

[0003] The purpose of the utility model is to propose a backlight structure, which can improve the backlight brightness. Specifically, the specific technical solution of the utility model is: to propose a backlight structure, including a light guide plate, an LED lamp and a backlight reflector, wherein the backlight reflector is set to be inverted, and the backlight reflector wraps the light guide plate and the LED lamp. In this way, the light emitted by the LED lamp is reflected into the light guide plate to the maximum extent, and finally emitted from the front of the backlight, thereby improving the backlight brightness. The LED lamp is arranged opposite to the light guide plate; the backlight reflector is attached and connected to the light guide plate.

[0004] As a preferred technical solution, the upper and lower ends of the backlight reflective sheet are bent inwards and set to an inverted type to wrap the light guide plate and the LED lamp.

[0005] As a preferred technical solution, both the upper and lower ends of the backlight reflective sheet are bent inwards, and the inward bending angle is 90°.

[0006] As a preferred technical solution, the bent portion at the upper end of the backlight reflective sheet is bent inwardly, and the bent portion wraps around the top end of the light guide plate.

[0007] As a preferred technical solution, the bent portion at the lower end of the backlight reflective sheet is in close contact with the plastic shell disposed below.

[0008] As a preferred technical solution, a diffusion film is attached to the front of the light guide plate to further improve the backlight brightness.

[0009] As a preferred technical solution, a first brightness enhancement film and a second brightness enhancement film are stacked on the front side of the diffusion film.

[0010] As a preferred technical solution, a light-shielding film is provided on the front side of the second brightness enhancement film.

[0011] As a preferred technical solution, it also includes an FPC, and the FPC is attached to the light guide plate and the front of the LED lamp.

[0012] As a preferred technical solution, it also includes a backlight iron frame, which is arranged on the back of the backlight structure to support the backlight structure.

[0013] The beneficial effect of the utility model is that the backlight reflector in the backlight structure proposed in the technical solution is set to an inverted type, and the upper and lower ends are bent inward at an angle of 90°, which wraps the light guide plate and the LED lamp, and is attached and connected together with other optical film materials, so as to reflect the light emitted by the LED lamp into the light guide plate to the maximum extent, and finally emit it from the front side of the backlight, thereby improving the brightness of the backlight without increasing the thickness of the backlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic structural diagram of a backlight structure proposed in an embodiment of the utility model.

[0016] Description of reference numerals: light guide plate 1; LED lamp 2; backlight reflector 3; plastic shell 4; diffusion film 5; first light enhancement film 6; second light enhancement film 7; light shielding film 8; FPC 9; backlight iron frame 10. DETAILED DESCRIPTION

[0017] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0018] In addition, described feature, structure or characteristic can be combined in the first or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application.But, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without the first or more in the specific details, or other methods, components, devices, steps etc. can be adopted.In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the present application.

[0019] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0020] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0021] It should be noted that the “plurality” mentioned in this article refers to two or more.

[0022] Example

[0023] like Figure 1 As shown in the figure, a backlight structure proposed in this embodiment includes a light guide plate 1, an LED lamp 2 and a backlight reflective sheet 3, wherein the backlight reflective sheet 3 is configured as an inverted type, and the backlight reflective sheet 3 wraps the light guide plate 1 and the LED lamp 2, and the LED lamp 2 is arranged opposite to the light guide plate 1; the backlight reflective sheet 3 is attached and connected to the light guide plate 1. The light guide plate 1 and the LED lamp 2 are wrapped and attached and connected together with other optical film materials, so that the light emitted by the LED lamp 2 is reflected into the light guide plate 1 to the maximum extent, and finally emitted from the front of the backlight, thereby improving the backlight brightness.

[0024] Preferably, the upper and lower ends of the backlight reflector 3 are bent inwards, and are set to be inverted, wrapping the light guide plate 1 and the LED lamp 2. Further, the upper and lower ends of the backlight reflector 3 are bent inwards, the inward bending angle is 90°, and the bent part is smoothly set.

[0025] Preferably, the bent portion at the upper end of the backlight reflective sheet 3 is bent inward, and the bent portion wraps around the upper end of the light guide plate 1, or abuts against the upper end of the light guide plate 1 at the tail of the bent portion, and is seamlessly connected. Furthermore, the bent portion at the lower end of the backlight reflective sheet 3 is in close contact with the plastic shell 4 arranged below. In this way, the backlight reflective sheet 3 is in an inverted type, completely wrapping the light guide plate 1 and the LED lamp 2, and maximally reflecting and utilizing the backlight brightness.

[0026] Preferably, a diffusion film 5 is attached to the front of the light guide plate 1 to further diffuse the light. More preferably, a first brightness enhancement film 6 and a second brightness enhancement film 7 are stacked on the front of the diffusion film 5 to improve the backlight brightness.

[0027] Preferably, a light-shielding film 8 is disposed on the front side of the second brightness enhancement film 7 .

[0028] Preferably, it also includes FPC9, and FPC9 is attached to the light guide plate 1 and the front of the LED lamp 2 by FPC9 double-sided adhesive.

[0029] Preferably, it also includes a backlight iron frame 10, which is arranged on the back side of the backlight structure to support the backlight structure.

[0030] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A backlight structure, characterized in that: It includes a light guide plate, an LED lamp and a backlight reflective sheet, wherein the backlight reflective sheet is set to be inverted, the backlight reflective sheet wraps the light guide plate and the LED lamp, the LED lamp is arranged opposite to the light guide plate; the backlight reflective sheet is attached and connected to the light guide plate.

2. A backlight structure according to claim 1, characterized in that: The upper and lower ends of the backlight reflective sheet are both bent inwards and set to be in an inverted style to wrap the light guide plate and the LED lamp.

3. The backlight structure according to claim 2, characterized in that: The upper and lower ends of the backlight reflective sheet are both bent inwardly, and the inward bending angle is 90°.

4. The backlight structure according to claim 2, characterized in that: The bent portion at the upper end of the backlight reflective sheet is bent inwardly, and the bent portion wraps the top of the light guide plate.

5. The backlight structure according to claim 3, characterized in that: The bent portion at the lower end of the backlight reflector is in close contact with the plastic shell disposed below.

6. The backlight structure according to claim 1, characterized in that: A diffusion film is attached to the front side of the light guide plate.

7. The backlight structure according to claim 6, characterized in that: The front side of the diffusion film is stacked with a first brightness enhancement film and a second brightness enhancement film.

8. The backlight structure according to claim 7, characterized in that: A light shielding film is arranged on the front side of the second brightness enhancement film.

9. The backlight structure according to claim 8, characterized in that: It also includes an FPC, which is attached to the light guide plate and the front of the LED lamp.

10. A backlight structure according to any one of claims 1 to 9, characterized in that: It also includes a backlight iron frame, which is arranged on the back side of the backlight structure.

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