High-contrast large-screen liquid crystal display panel structure

Abstract

The high-contrast large-screen liquid crystal display panel structure comprises a frame, a display panel and a back machine, the display panel is fixedly connected to the inner side of the frame, and the back machine is detachably connected to the rear portion of the frame; a plurality of heat dissipation grooves are formed in the edge of the back machine, and a notch is formed in the lower portion of the back machine; the inner side of the notch is fixedly connected with a plurality of interfaces, and the opening of the notch is detachably connected with a cover body. Compared with the prior art, the back machine has the advantages that the interfaces of the back machine are subjected to dustproof protection and physical protection by adopting a simple and powerful structure, the interfaces are all designed in the notches, the notches are detachably connected with the cover body, the cover body is provided with a plurality of reserved openings for mounting the covering caps, the covering caps are directly buckled and pressed at the reserved openings through the elastic buckles, and the notches are used for wiring; the design of the handle is convenient to pick and rotate the cover body, so that dust can be effectively prevented from entering the interface, and the display panel is suitable for being applied to a display panel in a high-dust environment.

Description

Technical Field

[0001] This utility model relates to the field of display panel technology, and in particular to a high-contrast large-screen liquid crystal display panel structure. Background Technology

[0002] The liquid crystal panel is the core component of a liquid crystal display (LCD), widely used in televisions, computer monitors, mobile phones, tablets, automotive displays, and other fields. It displays images by controlling the alignment of liquid crystal molecules, and boasts advantages such as thinness, low power consumption, and relatively low cost.

[0003] Large-screen LCD panels are widely used in demanding environments such as command and control, digital signage, and industrial monitoring; however, current technologies face key bottlenecks.

[0004] Interface reliability defects

[0005] High dust environments in industrial settings (such as mines and construction sites) lead to a significant increase in interface failure rates.

[0006] Particle intrusion damage: Dust entering the HDMI / USB interface contact surface causes an increase in data transmission error rate. Utility Model Content

[0007] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0008] Therefore, one objective of this utility model is to propose a high-contrast large-screen liquid crystal display panel structure to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0009] To achieve the above objectives, one embodiment of the present invention provides a high-contrast large-screen liquid crystal display panel structure, including a frame, a display panel, and a back unit. The display panel is fixedly connected to the inner side of the frame, and the back unit is detachably connected to the rear of the frame.

[0010] Several heat dissipation slots are provided at the edge of the back panel, and a notch is provided at the bottom of the back panel;

[0011] Several interfaces are fixedly connected to the inner side of the notch, and a cover is detachably connected to the opening of the notch.

[0012] The cover has several reserved openings, and each reserved opening corresponds to an interface.

[0013] A cover is detachably connected to the reserved opening, and a notch is provided on the cover.

[0014] A ring of elastic buckles is fixedly connected to the surface of the cap, and the elastic buckles can be locked inside the reserved opening;

[0015] A handle is fixedly connected to the other side of the cap.

[0016] Preferably, of any of the above solutions, the frame is made of aluminum alloy, and the frame is fastened to the back unit by multiple screws.

[0017] The above technical solution is adopted: This display panel consists of three parts. The first part is a frame, which is used to install the display panel and to connect to the back unit.

[0018] The second part is the display panel, which consists of an upper polarizer, an upper glass substrate, a liquid crystal layer, a lower glass substrate, a lower polarizer, and an auxiliary layer. The liquid crystal molecules in the liquid crystal layer are vertically aligned, and the light is blocked by the lower polarizer, resulting in pure black. When voltage is applied, the molecules tilt, allowing light to pass through with very little light leakage, thus naturally having high contrast. Therefore, this display panel is a display panel with high contrast.

[0019] The third part is the back unit, which is assembled with a frame using multiple screws. The back unit has a built-in circuit board, and the interface is installed in the recess of the back unit.

[0020] Preferably, in any of the above solutions, the display panel is specifically attached to the frame by adhesive.

[0021] Preferably, in any of the above solutions, the notch is elongated, and the interface includes an HDMI port, a power port, and a USB port.

[0022] The core structure of this device, employing the above technical solution, consists of: a notch, an interface, a cover, a pre-drilled opening, a cover, a spring clip, a notch, and a handle. The core advantages of this device are: it uses a simple yet robust structure to provide dust and physical protection for the back panel's interface; all interfaces are designed within the notch, with a detachable cover connection at the notch opening; several pre-drilled openings on the cover for installing the cover; the cover is directly snapped onto the pre-drilled openings using spring clips; the notch is used for wiring; and the handle design facilitates prying and rotating the cover. This effectively prevents dust from entering the interface, making it suitable for display panel applications in high-dust environments.

[0023] Preferably, in any of the above solutions, the cover is bonded to the notch, and the reserved opening is circular in shape.

[0024] The device consists of the following components: Frame: Made of aluminum alloy (lightweight yet with a strength ≥200MPa), it is detachably connected to the back unit using countersunk screws. The display panel is mounted on the inside using thermally conductive adhesive, with a thickness of 0.1mm (to ensure heat dissipation and shock resistance).

[0025] Display Panel: Composites from top to bottom: Upper polarizer: Reduces ambient light reflection and improves visibility. Upper glass substrate: 0.5mm thick, with an ITO transparent conductive layer deposited on the surface. Liquid crystal layer: A key innovative layer, using VA (vertically aligned) liquid crystal molecules. When not energized, the molecules are vertically aligned, completely blocking light transmission; when energized, the molecules tilt 15-80°, forming a light-transmitting channel with a light leakage rate of <0.1%. Lower glass substrate: 3.5μm spacing from the upper substrate, with embedded TFT driving circuitry. Lower polarizer: Axially perpendicular to the upper polarizer, forming an orthogonal polarization system. Auxiliary layer: Contains a quantum dot film (enhancing the color gamut to 120% sRGB) and a brightness enhancement film (light efficiency +30%).

[0026] Back panel 3: Built-in driver circuit board and LED backlight module (peak brightness 800 nits). 6-8 long heat dissipation slots 4 (slot width 2mm) are opened at the edge to enhance heat convection (temperature rise reduced by 8℃).

[0027] The core dustproof structure is integrated into the lower recess: the recess is a long strip (15mm deep) that houses interfaces such as HDMI, power, and USB ports. A cover (ABS plastic) is bonded to the recess, and a circular pre-drilled opening (1mm larger in diameter than the interface) is provided on the cover. Preferably, the cover is rotatable, made of plastic, and the elastic buckle has a bent cross-sectional shape.

[0028] Preferably, the handle is bonded to the cap, as described in any of the above embodiments.

[0029] Panel working principle: Dark state (black field): When no voltage is applied, VA liquid crystal molecules are aligned perpendicularly to the substrate. Backlight light passes through the lower polarizer → liquid crystal layer → is completely blocked by the vertical molecules → cannot reach the upper polarizer → the pixel is pure black (brightness 0.05 nit), and light leakage is almost zero.

[0030] Bright State (White Field): After applying voltage (5V), the liquid crystal molecules tilt to a set angle. Backlight passes through the lower polarizer → through the tilted liquid crystal molecules → the polarization direction rotates 90° → matches the transmission axis of the upper polarizer → light passes through efficiently → high brightness of the pixels (contrast ratio > 5000:1).

[0031] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0032] This high-contrast large-screen LCD display panel features a simple yet robust structure that utilizes recesses, interfaces, covers, pre-drilled openings, caps, elastic clips, notches, and handles to provide dust and physical protection for the back panel's interfaces. All interfaces are housed in recesses, with detachable covers at the recess openings. Several pre-drilled openings on the covers allow for cap installation, and the caps are secured directly to these openings with elastic clips. Notches are used for cable routing, and the handle facilitates easy prying and rotating of the covers. This design effectively prevents dust from entering the interfaces, making it suitable for display panel applications in high-dust environments.

[0033] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0034] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the structure of the notch in this utility model;

[0037] Figure 3 This is a schematic diagram of the front structure of this utility model;

[0038] Figure 4 This is a schematic diagram of the structure of the cover of this utility model.

[0039] In the diagram: 1-Frame, 2-Panel, 3-Back panel, 4-Heat sink, 5-Notch, 6-Interface, 7-Cover, 8-Pre-drilled opening, 9-Cover, 10-Notch, 11-Elastic buckle, 12-Handle. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0042] like Figure 1-4 As shown, the structure of this high-contrast large-screen LCD display panel includes a frame 1, a display panel 2, and a back unit 3. The display panel 2 is fixedly connected to the inner side of the frame 1, and the back unit 3 is detachably connected to the rear of the frame 1.

[0043] Several heat dissipation slots 4 are provided on the edge of the back unit 3, and a notch 5 is provided at the bottom of the back unit 3;

[0044] Several interfaces 6 are fixedly connected to the inside of the notch 5, and a cover 7 is detachably connected to the opening of the notch 5.

[0045] The cover 7 has several reserved openings 8, and each reserved opening 8 corresponds to an interface 6;

[0046] A cover 9 is detachably connected to the reserved opening 8, and a notch 10 is opened on the cover 9;

[0047] A ring of elastic buckles 11 is fixedly connected to the surface of the cover 9, and the elastic buckles 11 can be locked inside the reserved opening 8;

[0048] A handle 12 is fixedly connected to the other side of the cover 9.

[0049] Example 1: The frame 1 is made of aluminum alloy and is fastened to the back unit 3 with multi-point screws. Specifically, the display panel 2 is glued to the frame 1. The recess 5 is elongated, and the interfaces 6 include an HDMI port, a power port, and a USB port. The cover 7 is glued to the recess 5, and the reserved opening 8 is circular. The handle 12 is glued to the cover 9.

[0050] Example 2: This display panel consists of three parts. The first part is the frame 1, which is used to install the display panel 2 and to connect to the back unit 3.

[0051] The second part is the display panel 2, which consists of an upper polarizer, an upper glass substrate, a liquid crystal layer, a lower glass substrate, a lower polarizer, and an auxiliary layer. The liquid crystal molecules in the liquid crystal layer are vertically aligned, and the light is blocked by the lower polarizer, resulting in pure black. When voltage is applied, the molecules tilt, allowing light to pass through with minimal light leakage, thus naturally achieving high contrast. Therefore, this display panel is a display panel with high contrast.

[0052] The third part is the back unit 3, which is assembled with the frame 1 by multiple screws. The back unit 3 has a built-in circuit board, and the interface 6 is installed in the recess 5 of the back unit 3.

[0053] The device consists of the following structure: Frame 1: made of aluminum alloy (lightweight and with a strength ≥200MPa), detachably connected to the back unit 3 via countersunk screws. The display panel 2 is mounted on the inside using thermally conductive adhesive with a thickness of 0.1mm (to ensure heat dissipation and shock resistance).

[0054] Display Panel 2: Composite layers from top to bottom: Upper polarizer: Reduces ambient light reflection and improves visibility. Upper glass substrate: 0.5mm thick, with an ITO transparent conductive layer deposited on the surface. Liquid crystal layer: A key innovative layer, using VA (vertically aligned) liquid crystal molecules. When not energized, the molecules are vertically aligned, completely blocking light transmission; when energized, the molecules tilt 15-80°, forming a light-transmitting channel with a light leakage rate of <0.1%. Lower glass substrate: 3.5μm spacing from the upper substrate, with embedded TFT driving circuitry. Lower polarizer: Axially perpendicular to the upper polarizer, forming an orthogonal polarization system. Auxiliary layer: Contains a quantum dot film (enhancing the color gamut to 120% sRGB) and a brightness enhancement film (light efficiency +30%).

[0055] Back panel 3: Built-in driver circuit board and LED backlight module (peak brightness 800 nits). 6-8 long heat dissipation slots 4 (slot width 2mm) are opened at the edge to enhance heat convection (temperature rise reduced by 8℃).

[0056] The core dustproof structure is integrated into the lower recess 5: Recess 5 is a long strip-shaped recess (15mm deep), which houses interfaces 6 such as HDMI port, power port, and USB port. The port of recess 5 is bonded to a cover 7 (ABS plastic), and a circular pre-drilled opening 8 (1mm larger in diameter than the interface 6) is provided on the cover 7. Preferably, the cover 9 is rotatable, made of plastic, and the elastic buckle 11 has a bent cross-sectional shape.

[0057] The working principle of this utility model is as follows:

[0058] Panel working principle: Dark state (black field): When no voltage is applied, VA liquid crystal molecules are aligned perpendicularly to the substrate. Backlight light passes through the lower polarizer → liquid crystal layer → is completely blocked by the vertical molecules → cannot reach the upper polarizer → the pixel is pure black (brightness 0.05 nit), and light leakage is almost zero.

[0059] Bright State (White Field): After applying voltage (5V), the liquid crystal molecules tilt to a set angle. Backlight passes through the lower polarizer → through the tilted liquid crystal molecules → the polarization direction rotates 90° → matches the transmission axis of the upper polarizer → light passes through efficiently → high brightness of the pixels (contrast ratio > 5000:1).

[0060] Compared with the prior art, the present invention has the following advantages:

[0061] This high-contrast large-screen LCD display panel structure, through the coordinated arrangement of notch 5, interface 6, cover 7, reserved opening 8, cover 9, elastic buckle 11, notch 10, and handle 12, adopts a simple and powerful structure to provide dustproof and physical protection for the interface 6 of the back unit 3. The interface 6 is designed in the notch 5, and the cover 7 can be detachably connected to the notch 5. Several reserved openings 8 are opened on the cover 7 for installing the cover 9. The cover 9 is directly pressed into the reserved opening 8 by the elastic buckle 11. The notch 10 is used for wiring. The design of the handle 12 makes it easy to pry and rotate the cover 7. This can effectively prevent dust from entering the interface 6 and is suitable for display panel applications in high-dust environments.

Claims

1. A high-contrast large-screen liquid crystal display panel structure, characterized in that, It includes a frame (1), a display panel (2), and a back unit (3). The display panel (2) is fixedly connected to the inner side of the frame (1), and the back unit (3) is detachably connected to the rear of the frame (1). Several heat dissipation slots (4) are provided at the edge of the back unit (3), and a notch (5) is provided at the bottom of the back unit (3); The inner side of the notch (5) is fixedly connected with several interfaces (6), and the opening of the notch (5) is detachably connected with a cover (7); The cover (7) has several reserved openings (8), and the reserved openings (8) correspond one-to-one with the interface (6); A cover (9) is detachably connected to the reserved opening (8), and a notch (10) is provided on the cover (9); A ring of elastic buckle (11) is fixedly connected to the surface of the cover (9), and the elastic buckle (11) can be locked inside the reserved opening (8); A handle (12) is fixedly connected to the other side of the cap (9).

2. The high-contrast large-screen liquid crystal display panel structure as described in claim 1, characterized in that: The frame (1) is made of aluminum alloy and is fastened to the back unit (3) by multiple screws.

3. The high-contrast large-screen liquid crystal display panel structure as described in claim 2, characterized in that: Specifically, the display panel (2) is attached to the frame (1) by adhesive.

4. The high-contrast large-screen liquid crystal display panel structure as described in claim 3, characterized in that: The notch (5) is elongated, and the interface (6) includes an HDMI port, a power port, and a USB port.

5. The high-contrast large-screen liquid crystal display panel structure as described in claim 4, characterized in that: The cover (7) is bonded to the notch (5), and the reserved opening (8) is circular in shape.

6. The high-contrast large-screen liquid crystal display panel structure as described in claim 5, characterized in that: The cap (9) is rotatable, the cap (9) is made of plastic, and the elastic buckle (11) has a bent cross-sectional shape.

7. The high-contrast large-screen liquid crystal display panel structure as described in claim 6, characterized in that: The handle (12) is bonded to the cap (9).

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