Ultra-thin display screen based on mini LED backlight

Abstract

The utility model relates to display screen technical field especially, more particularly to a kind of ultra-thin display screen based on mini LED backlight source, including the backplate of self rear to front sequentially laminated, mini LED light-emitting substrate, optical film, LCD module, glass panel;The mini LED light-emitting substrate is integral type glass-based mini LED, for the backlight source of constituting LCD module;The periphery of the backplate and glass panel is aligned, and frame is set around the periphery of backplate and glass panel, and the two are packaged as a whole;The back of the backplate is equipped with control unit at lower edge, for driving mini LED light-emitting substrate and LCD module.The utility model can greatly reduce redundant structural members relative to prior art that relies on middle frame integration assembly and support, realized the innovation that is conducive to ultra-thin design, measured can be compressed to the thickness of display screen below 40% of conventional scheme, and the whole machine thickness is thin to 6mm.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to an ultra-thin display screen based on a mini LED backlight. Background Technology

[0002] In recent years, ultra-thin displays have become an important development direction in the consumer electronics field, and are undergoing a technological evolution from "partial thinning" to "overall flat panelization".

[0003] Traditional display screens consist of multiple stacked layers, including a glass cover, liquid crystal module (LCM), backlight module, back shell, and mid-frame. The mid-frame is the core component that integrates, assembles, and supports the various layers. The structural design and manufacturing precision of the mid-frame greatly limit the ultra-thin design of the display screen.

[0004] For the reasons mentioned above, frameless design is an important research direction for achieving ultra-thin displays in the industry. However, the frame currently serves as the main assembly benchmark for displays. Eliminating the frame may lead to a loss of a unified assembly benchmark for each layer of components, resulting in difficulties in coordinating assembly tolerances. Utility Model Content

[0005] This utility model aims to address the aforementioned shortcomings of the prior art by providing an ultra-thin display screen based on a mini LED backlight. It uses glass-based mini LEDs as the mini LED backlight of the display screen and utilizes the glass substrate of the mini LED backlight as the assembly reference for the entire display module, thus achieving a structural innovation that facilitates ultra-thin design.

[0006] To achieve the above objectives, the present invention adopts the following technical solution.

[0007] An ultra-thin display screen based on mini LED backlight includes a back plate, a mini LED light-emitting substrate, an optical film, an LCD module, and a glass panel stacked sequentially from back to front.

[0008] The mini LED light-emitting substrate is an integrated glass-based mini LED, used to form the backlight of the LCD module;

[0009] The back panel and the glass panel are aligned around their perimeters, and a frame is provided around the perimeters of the back panel and the glass panel to encapsulate them as one unit.

[0010] The back of the backplate has a control unit at the lower edge for driving the mini LED light-emitting substrate and the LCD module.

[0011] Optionally, the back panel may be a metal sheet, tempered glass, or acrylic.

[0012] Preferably, the control unit includes an insulating shell fixed to the back plate and a control circuit disposed within the insulating shell; the lower edge of the back plate is provided with a clearance hole for arranging the connection circuit, and the mini LED light-emitting substrate and the LCD module are connected to the control circuit through the connection circuit.

[0013] Preferably, the cross-section of the frame is T-shaped, including a head located at the outer edge of the back panel and the glass panel, and a foot located between the back panel and the glass panel; the foot fits precisely between the back panel and the glass panel and is fixedly connected by adhesive; the two sides of the head are flush with the outer surfaces of the back panel and the glass panel, respectively.

[0014] Optionally, the frame is an injection-molded part or a stamped part.

[0015] Compared with the prior art, the present invention has the following advantages: The mini LED light-emitting substrate used as the backlight adopts an integrated glass-based mini LED. The glass substrate serves as the zero plane for aligning the front-end optical film and the LCD module. With the help of the matching assembly fixture, the front-end components can be provided with an assembly reference. Therefore, the mini LED light-emitting substrate has three functions: circuit carrying, optical reflection and structural support. Compared with the existing technology that relies on the middle frame to integrate assembly and support, it can greatly reduce redundant structural components and realize the innovation that is conducive to ultra-thin design. The actual measurement can compress the thickness of the display screen to less than 40% of the traditional solution, and the thickness of the whole machine is as thin as 6mm.

[0016] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0019] Figure 3 This is an exploded view of the structure of this utility model.

[0020] Figure 4 This is an assembly diagram of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Backplate, 2. Mini LED light-emitting substrate, 3. Optical film, 4. LCD module, 5. Glass panel, 6. Frame, 7. Control unit, 70. Insulating shell, 10. Alignment hole, 61. Head, 62. Foot. Detailed Implementation

[0023] Combination Figures 1 to 4 As shown, in one embodiment, the ultra-thin display screen based on mini LED backlight provided by this utility model includes a back plate 1, a mini LED light-emitting substrate 2, an optical film 3, an LCD module 4, and a glass panel 5 stacked sequentially from back to front.

[0024] The mini LED light-emitting substrate 2 is an integrated glass-based mini LED, which is used to form the backlight of the LCD module 4.

[0025] The back plate 1 and the glass panel 5 are aligned around their perimeters, and a frame 6 is provided around the perimeters of the back plate 1 and the glass panel 5 to encapsulate the two into one unit.

[0026] The back of the back plate 1 has a control unit 7 on the lower edge, which is used to drive the mini LED light-emitting substrate 2 and the LCD module 4.

[0027] In the above embodiments, the optical film 3 typically includes a diffuser plate, a brightness enhancement film, a filter, and a quantum dot film. This is not a technical improvement of this utility model, and its specific structural configuration should be understood as a conventional setting known in the prior art, so it will not be described in detail.

[0028] The glass substrate of glass-based mini LEDs has a much higher mechanical strength and modulus than that of PCB substrates, especially after chemical strengthening. In the above embodiment, the mini LED light-emitting substrate 2, which serves as the backlight, is an integrated glass-based mini LED. Its glass substrate replaces the middle frame in the prior art to act as a skeleton to support the optical film 3 and LCD module 4, elevating the glass substrate from a simple circuit carrier to a precise assembly standard.

[0029] In the above embodiments, during the assembly of the ultra-thin display screen based on mini LED backlight, the mini LED light-emitting substrate 2 is precisely positioned and glued to the back plate 1 with the help of the matching assembly fixture. Then, the glass substrate of the mini LED light-emitting substrate 2 is used as the zero plane for aligning the front optical film 3 and the LCD module 4. The high-precision and high-flatness glass substrate is used as the assembly reference for the front optical film 3 and the LCD module 4, which reduces tolerances from the source and simplifies the assembly difficulty.

[0030] In fact, the above-described embodiment combines the back plate 1, the glass substrate of the mini LED light-emitting substrate 2, and the glass panel 5 into a single composite load-bearing structure. This structure is similar to a sandwich panel, where the back plate 1 and the glass panel 5 serve as the main panels bearing tensile and compressive stresses, while the glass substrate, with its high elastic modulus, acts as the core support layer, tightly coupled to the back plate 1. This significantly enhances the overall structure's bending stiffness and shear resistance. In particular, the chemically strengthened glass substrate provides sufficient mechanical strength for its use as a structural component. The traditional independent mid-frame structure is replaced by the highly integrated composite structure of this invention, thus achieving an ultra-thin structure while ensuring overall rigidity.

[0031] In summary, the mini LED light-emitting substrate 2 of this invention combines circuit support, optical reflection, and structural support, significantly reducing redundant structural components compared to existing technologies that rely on mid-frame integration and assembly, thus achieving an innovation that facilitates ultra-thin design. Furthermore, the glass substrate's glass material is an excellent thermal conductor, promoting uniform heat dissipation and achieving more efficient heat dissipation in a thinner form.

[0032] In one embodiment, through theoretical calculations and reasonable optimization, the applicant has achieved the following configuration using conventional technical means: the thickness of the backplate 1 is 1mm, the thickness of the mini LED light-emitting substrate 2 is 0.4mm, the adhesive layer between the backplate 1 and the mini LED light-emitting substrate 2 is 0.1mm, the overall thickness of the optical film 3 is 2.065mm, the overall thickness of the LCD module 4 is 0.6mm, and the thickness of the glass panel 5 is 1.5mm. The theoretical thickness of the assembled display is 5.665mm. Considering factors such as the bezel and optical distance, for example, by designing the optical distance of the mini LED light-emitting substrate 2 to be 0.3mm, and with reasonable control of assembly tolerances, the overall thickness can still be as thin as approximately 6mm.

[0033] Optionally, the back panel 1 can be a metal sheet, tempered glass, or acrylic.

[0034] Better, such as Figure 2 As shown, the control unit 7 includes an insulating shell 70 fixed on the back plate 1, and a control circuit (not shown) disposed in the insulating shell 70; the lower edge of the back plate 1 is provided with a clearance hole 10 for arranging the connection circuit, and the mini LED light-emitting substrate 2 and the LCD module 4 are connected to the control circuit through the connection circuit.

[0035] Better, such as Figure 4As shown, the cross-section of the frame 6 is T-shaped, including a head 61 located at the outer edge of the back plate 1 and the glass panel 5, and a foot 62 located between the back plate 1 and the glass panel 5; the foot 62 fits precisely between the back plate 1 and the glass panel 5 and is fixedly connected by adhesive; the two sides of the head 61 are flush with the outer surfaces of the back plate 1 and the glass panel 5 respectively.

[0036] Optionally, the frame 6 is an injection molded part or a stamped part.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultra-thin display screen based on a mini LED backlight, characterized in that: It includes a backplate, a mini LED light-emitting substrate, an optical film, an LCD module, and a glass panel, which are stacked sequentially from back to front. The mini LED light-emitting substrate is an integrated glass-based mini LED, used to form the backlight of the LCD module; The back panel and the glass panel are aligned around their perimeters, and a frame is provided around the perimeters of the back panel and the glass panel to encapsulate them as one unit. The back of the backplate has a control unit at the lower edge for driving the mini LED light-emitting substrate and the LCD module.

2. The ultra-thin display screen based on mini LED backlight as described in claim 1, characterized in that: The back panel is made of metal sheet, tempered glass, or acrylic.

3. The ultra-thin display screen based on a mini LED backlight as described in claim 1 or 2, characterized in that: The control unit includes an insulating shell fixed to the back plate and a control circuit disposed within the insulating shell; the lower edge of the back plate is provided with a clearance hole for arranging the connection circuit, and the mini LED light-emitting substrate and the LCD module are connected to the control circuit through the connection circuit.

4. The ultra-thin display screen based on a mini LED backlight as described in claim 1, characterized in that, The frame has a T-shaped cross-section, including a head located at the outer edge of the back panel and the glass panel, and a foot located between the back panel and the glass panel; the foot fits precisely between the back panel and the glass panel and is fixedly connected by adhesive; the two sides of the head are flush with the outer surfaces of the back panel and the glass panel, respectively.

5. The ultra-thin display screen based on a mini LED backlight as described in claim 1 or 4, characterized in that: The frame is an injection molded part or a stamped part.

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