Ultra-thin high-brightness capacitive touch advertising machine

Abstract

The utility model relates to an ultra -thin high -light capacitor touch advertising machine, including the organism, be provided with profile front frame toughened glass unit, capacitor touch film, liquid crystal screen, light guide plate film material fitting unit, LED lamp strip heat dissipation aluminum plate fitting unit and rear cover on the organism, the front of profile front frame toughened glass unit is pasted toughened glass and capacitor touch film in proper order through glass cement, liquid crystal screen is fixed above capacitor touch film through buffer rubber strip, light guide plate film material fitting unit is inverted on the top of liquid crystal screen through buffer rubber strip, and four edge gaps are equipped with silica gel limiting block fixedness, the utility model has the advantages of: the thinnest, structural integration: through '' front frame toughened glass + rear cover '' directly bear and compress optical, backlight and display assembly, save traditional '' liquid crystal module '' front frame, middle frame, backplate and so on redundant structural member, realize the rare ultra -thin form of advertising machine industry.

Description

Technical Field

[0001] This utility model relates to an ultra-thin, high-brightness capacitive touch advertising machine, belonging to the field of optical structure technology. Background Technology

[0002] As commercial display terminals develop towards thinner, lighter, and more integrated designs, the traditional "casing + independent LCD module" assembly method for advertising machines can no longer meet the market's demand for ultra-thin appearance and lightweight structure. Existing technologies generally use a complete LCD module nested within a metal or plastic casing. This module includes a front frame, middle frame, back panel, and multiple optical films. The stacking of these structural components results in an overall thickness typically exceeding 30 mm. This not only fails to meet the slim visual requirements of modern commercial spaces, which often require wall-mounted displays resembling picture frames, but also increases transportation and installation costs.

[0003] In addition, traditional modules have a closed cavity structure with a long heat dissipation path. The heat generated by the LED backlight needs to be conducted through multiple stages of the back plate and shell before it can be dissipated. The overall equivalent thermal resistance is high, which limits the improvement of brightness. If the LED power is forcibly increased to obtain a high-brightness display, the excessive temperature rise will accelerate the aging of the liquid crystal and reduce reliability.

[0004] Therefore, how to achieve an integrated design of optics, heat dissipation, and overall appearance without eliminating redundant module structural components has become a technical challenge that the advertising machine industry urgently needs to solve. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides an ultra-thin, high-brightness capacitive touch advertising machine. The technical solution of this utility model is as follows: An ultra-thin high-brightness capacitive touch advertising machine includes a body, on which are provided a profile front frame tempered glass unit (1), a capacitive touch film, an LCD screen (3), a light guide plate film bonding unit (4), an LED light strip heat dissipation aluminum plate bonding unit (5), and a back cover (6); the front of the profile front frame tempered glass unit (1) is bonded to the tempered glass and the capacitive touch film in sequence with glass glue; the LCD screen (3) is fixed on top of the capacitive touch film by a buffer strip; the light guide plate film bonding unit (4) is fixed on top of the LCD screen (3) by a buffer strip, and silicone limiting blocks are provided in the four side gaps for fixation; The two sets of LED strip heat dissipation aluminum plate bonding units (5) are respectively inverted on both sides of the light guide plate film bonding unit (4) along the long side direction, and fixed to the front frame by silicone limiting blocks; the rear cover (6) is attached to the tempered glass unit (1) of the profile front frame by screws, pressing the light guide plate film bonding unit (4) and LED strip heat dissipation aluminum plate bonding unit (5) together.

[0006] The tempered glass back of the profile front frame tempered glass unit (1) is provided with a selectively silkscreened black area (1a) for hiding non-display area components.

[0007] The light guide plate film bonding unit (4) consists of a reflective sheet (4a), a light guide plate (4b), a diffuser sheet (4c), and a composite film (4d) stacked sequentially from bottom to top, and the four sides are bonded together as a whole by double-sided adhesive; the edge of the light guide plate (4b) is provided with a notch (4e) to avoid the protrusion of the LED light strip welding line.

[0008] The LED light strip heat dissipation aluminum plate bonding unit (5) includes an LED light strip (5a) and a heat dissipation aluminum plate (5b), which are bonded together by thermally conductive double-sided adhesive. The surface of the heat dissipation aluminum plate (5b) is provided with a non-protruding rib area (5c) for the liquid crystal screen COF to fold through, and a heat dissipation aluminum plate notch (5d) is provided to avoid the FFC cable; the edge of the heat dissipation aluminum plate (5b) is provided with a protruding rib (5e) for pressing each unit when the back cover is locked.

[0009] The silicone limiting block is made of soft silicone material with a hardness of 60-80 Shore A, and fills the gap between the LED light strip heat dissipation aluminum plate bonding unit (5) and the front frame to form an elastic thermal expansion compensation structure.

[0010] The rear cover (6) includes an upper cover and a lower cover below the upper cover; the inner side of the upper cover is provided with a rivet post (6c) for installing the motherboard and power board; the lower cover is connected to the base to realize the vertical support of the whole machine.

[0011] The two sets of LED light strip heat dissipation aluminum plate bonding units (5) are symmetrically arranged on both sides of the long side of the display area to form a double-sided light-incident backlight with a total power ≥100W.

[0012] The COF area of ​​the LCD screen (3) corresponds to the non-protruding rib area (5c) of the heat dissipation aluminum plate (5b), so that the COF can be freely folded. The FFC cable passes through the notch (5d) in the heat sink aluminum plate and connects to the motherboard.

[0013] The lower cover of the rear cover (6) is provided with an interface area, which integrates the following interfaces: AC power interface, ON / OFF switch, RS232 input / output interface, USB interface, HDMI input interface and RJ45 interface.

[0014] The advantages of this utility model are: 1. Ultra-thin and integrated structure: The front frame tempered glass and back cover directly support and press the optical, backlight and display components, eliminating the redundant structural components such as the front frame, middle frame and back panel of the traditional "LCD module", achieving an ultra-thin form rarely seen in the advertising machine industry.

[0015] 2. High brightness display, dual-sided light source: Two LED light strips are symmetrically arranged along the long side and coupled with the light guide plate to form a dual-sided light source backlight; under the same film structure, the light flux is improved, and it is visible in outdoor sunlight, meeting the needs of high-brightness advertising.

[0016] 3. Flexible heat dissipation and high thermal stability: The LED light strip is integrated with the heat dissipation aluminum plate for rapid heat dissipation; 60-80 Shore A soft silicone limit block forms an elastic buffer between the light strip and the front frame, which absorbs thermal expansion and avoids hard compression.

[0017] 4. Concealed wiring and simple appearance: Selective black silkscreen areas on the back of the tempered glass cover the non-display areas; the heat dissipation aluminum plate has reserved areas without protruding ribs and notches for hiding the wiring of the LCD screen COF and FFC screen cables, achieving a minimalist visual effect with no screws and no frame on the front.

[0018] 5. Easy installation and maintenance: All optical, backlight and display units are installed in reverse order from top to bottom, and the whole machine can be assembled by tightening the screws around the perimeter; the back cover has reserved rivet posts and interface area, and the motherboard and power board are installed in a modular manner. On-site maintenance only requires removing the back cover to quickly replace parts.

[0019] 6. Abundant interfaces and wide adaptability: The back cover integrates full-function interfaces such as AC, RS232, USB, HDMI, and RJ45, which can be wall-mounted horizontally / vertically, floor-standing, or embedded, meeting the needs of diverse scenarios such as retail, transportation, and government and enterprise. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0021] Figure 2 yes Figure 1 A structural diagram of the tempered glass unit in the front frame of the medium profile.

[0022] Figure 3 yes Figure 1 A schematic diagram of the structure of the unit where the LCD screen and the LED light strip heat dissipation aluminum plate are bonded together.

[0023] Figure 4 yes Figure 1 A schematic diagram of the structure of the LED light strip heat dissipation aluminum plate bonding unit.

[0024] Figure 5 yes Figure 1 A schematic diagram of the structure of the light guide plate film bonding unit.

[0025] Figure 6 yes Figure 5 Side view.

[0026] Figure 7yes Figure 1 A schematic diagram of the middle and rear cover section.

[0027] Figure 8 yes Figure 1 Rear view. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0029] See Figures 1 to 8 This utility model relates to an ultra-thin, high-brightness capacitive touch advertising machine, comprising a body, on which are arranged a profile front frame tempered glass unit 1, a capacitive touch film, an LCD screen 3, a light guide plate film bonding unit 4, an LED light strip heat dissipation aluminum plate bonding unit 5, and a rear cover 6; the front of the profile front frame tempered glass unit 1 is bonded to the capacitive touch film in sequence with glass glue; the LCD screen 3 is fixed upside down above the capacitive touch film by a buffer strip; the light guide plate film bonding unit 4 is fixed upside down above the LCD screen 3 by a buffer strip, and silicone limiting blocks are provided in the four side gaps for fixation; The two sets of LED strip heat dissipation aluminum plate bonding units 5 are respectively inverted on both sides of the light guide plate film bonding unit 4 along the long side direction, and fixed to the front frame by silicone limiting blocks; the rear cover 6 is attached to the tempered glass unit 1 of the profile front frame by screws, pressing the light guide plate film bonding unit 4 and the LED strip heat dissipation aluminum plate bonding unit 5 together.

[0030] The above structure achieves the following advantages: 1. Minimalist and ultra-thin: Eliminating the traditional module frame, the entire device is held by only the tempered glass front frame and the back cover, which greatly reduces the thickness.

[0031] 2. High brightness and uniformity: The double-sided LED light strips are closely attached to the light guide plate, which significantly improves the backlight brightness and makes the light distribution uniform.

[0032] 3. Flexible heat dissipation: The soft silicone limit block not only limits the movement but also buffers thermal expansion, preventing deformation at high temperatures and making the operation more stable.

[0033] 4. Concealed wiring: The black markings on the back of the glass cover the wiring, and the aluminum plate has a reserved channel. There are no screws or cables on the front, resulting in a clean appearance.

[0034] 5. Quick assembly: It can be installed by inverting from top to bottom and tightening screws around the perimeter, saving time and effort in both production and maintenance.

[0035] 6. Versatile and flexible: The back cover has a full range of interfaces, supports multiple installation methods, and makes upgrades and expansions more convenient.

[0036] The tempered glass back of the front frame tempered glass unit 1 has a selectively silkscreened black area 1a to hide components in the non-display area. This selectively silkscreened black area 1a creates a visual "borderless" effect: all components, wiring, and fixing structures outside the display area are completely covered, and only a clean image is presented on the front, making the overall appearance more concise and high-end, while avoiding interference from ambient light reflection and improving the viewing experience.

[0037] The light guide plate film bonding unit 4 consists of a reflective sheet 4a, a light guide plate 4b, a diffuser sheet 4c, and a composite film 4d stacked sequentially from bottom to top, and bonded together on all four sides with double-sided adhesive. The light guide plate 4b has a notch 4e on its edge to avoid protruding LED strip bonding wires. This light guide plate film bonding unit 4 forms an integrated optical component through "sheet stacking + perimeter bonding", which ensures efficient light transmission and uniform diffusion, and uses the notch 4e on the edge of the light guide plate to make way for the LED strip bonding wires, avoiding assembly interference and achieving precise optical coupling in an ultra-thin space.

[0038] The LED light strip heat dissipation aluminum plate bonding unit 5 includes an LED light strip 5a and a heat dissipation aluminum plate 5b, which are bonded together by thermally conductive double-sided adhesive. The surface of the heat dissipation aluminum plate 5b is provided with a non-protruding rib area 5c for the LCD screen COF51 to fold through, and a heat dissipation aluminum plate notch 5d is provided to avoid the FFC cable; the edge of the heat dissipation aluminum plate 5b is provided with a protruding rib 5e for pressing each unit when the back cover is locked.

[0039] The LED light strip heat dissipation aluminum plate bonding unit 5 achieves three functions through the "light strip-aluminum plate-structure integration" design: 1. Fast heat conduction: The LED strip 5a and the heat dissipation aluminum plate 5b are directly bonded with thermally conductive double-sided adhesive, allowing heat to dissipate instantly and ensuring that the high brightness output does not overheat. 2. Concealed wiring: The aluminum plate surface has no raised ribs in area 5c and the heat dissipation aluminum plate notch 5d, which are respectively for the LCD screen COF fold and the FFC cable to make way. The wiring harness is completely hidden inside and has no exposed parts on the front. 3. Stable clamping: The raised ribs at the edges 5e form rigid pressure points when the back cover is locked, locking the optical and display units in one go, eliminating the need for additional brackets and further reducing the thickness.

[0040] The silicone limiting block 7 is made of soft silicone with a hardness of 60-80 Shore A. It fills the gap between the LED light strip heat dissipation aluminum plate bonding unit 5 and the front frame, forming an elastic thermal expansion compensation structure. This soft silicone limiting block 7, with an elastic hardness of 60-80 Shore A, forms a "compressible-rebound" buffer zone between the LED light strip heat dissipation aluminum plate bonding unit 5 and the front frame: when the light strip heats up and expands, the silicone is compressed and absorbs the deformation; when the temperature drops, the silicone rebounds and resets, maintaining a uniform clamping force and avoiding warping or light spots caused by hard compression, thus ensuring optical stability and the safety of the overall structure.

[0041] The rear cover 6 includes an upper cover and a lower cover below the upper cover; the inner side of the upper cover is provided with rivets for mounting the motherboard and power board; the lower cover is connected to the base to achieve vertical support for the whole machine.

[0042] The two sets of LED light strip heat dissipation aluminum plate bonding units 5 are symmetrically arranged on both sides of the long side of the display area to form a double-sided light-incident backlight with a total power ≥100W.

[0043] The COF area of ​​the LCD screen 3 corresponds to the non-protruding rib area 5c of the heat dissipation aluminum plate 5b, allowing the COF to fold freely. The FFC cable passes through the notch 5d of the heat dissipation aluminum plate and connects to the motherboard. The COF area folds freely within the non-protruding rib area 5c, and the FFC cable passes through the notch 5d of the heat dissipation aluminum plate and goes directly to the motherboard. The cable harness is hidden between the heat dissipation aluminum plate and the back cover throughout the entire process, with no openings or protrusions on the front, ensuring signal integrity while maintaining the ultra-thin and minimalist appearance of the entire device.

[0044] The lower cover 6b of the rear cover 6 has an interface area that integrates the following interfaces: AC power interface, ON / OFF switch, RS232 input / output interface, USB interface, HDMI input interface, and RJ45 interface. This interface area centrally arranges commonly used power, control, and multimedia ports on the lower cover 6b, and all cables exit from near the base, which facilitates quick on-site wiring and subsequent maintenance, while keeping the back of the device clean and eliminating the need for an external adapter box.

[0045] The working principle of this utility model is as follows: The working principle of this ultra-thin high-brightness capacitive touch advertising machine follows a four-pronged approach: light, electricity, heat, and mechanics. The steps are as follows: 1. Optical path: After the dual-sided LED light strips 5a are lit, the light enters from both sides of the light guide plate 4b simultaneously, is reflected upward by the reflector 4a, and then spread evenly through the diffuser 4c and composite film 4d to form a bright and uniform backlight surface, illuminating the display area of ​​the LCD screen 3.

[0046] 2. Image Display: The motherboard inputs image signals to the LCD screen 3 via the FFC cable; the LCD screen 3 displays a visible image under backlight illumination. The capacitive touch film is attached to the inside of the tempered glass. When the user touches the screen, the capacitance change is sent back to the motherboard via the same FFC cable to complete the touch feedback.

[0047] 3. Thermal Management: The heat generated by the LED is instantly conducted to the heat dissipation aluminum plate 5b, and then diffused to the outside through the air gap between the large surface area of ​​the aluminum plate and the back cover 6, as well as the heat dissipation holes of the back cover itself. The soft silicone limiting block 7 compresses or rebounds when the temperature rises or falls, absorbing the linear expansion of the LED strip and the aluminum plate, maintaining a constant optical gap, and avoiding bright spots or warping.

[0048] 4. Structural locking: After the screws around the back cover 6 are tightened, the raised ribs 5e on the edge are directly pressed against the outside of the LED light strip heat dissipation aluminum plate bonding unit 5, forming an integrated clamping structure of "front frame - optical layer - light strip aluminum plate - back cover", so that the whole machine can remain stable without additional support.

[0049] 5. Signal and power connection: The AC power interface powers the entire unit; the ON / OFF switch controls the on / off state; RS232, USB, HDMI, RJ45 and other interfaces are located in the interface area of ​​the lower cover 6b. All cables run through the internal cable tray of the lower cover to the motherboard and power board, enabling content updates, remote control and peripheral expansion.

[0050] 6. Installation and maintenance: When repair or upgrade is required, simply remove the four corner screws of the back cover 6 to lift the top cover 6a together with the motherboard and power board; the optical and light strip units are still supported by the front frame and the bottom cover, realizing "screen-free" maintenance and shortening downtime.

[0051] 7. Multi-scene adaptation: The bottom cover can be directly inserted into the base for vertical placement; after removing the base, the holes on the back cover can be used for wall mounting or embedded installation, meeting the needs of various application environments such as retail windows, transportation hubs, and conference and exhibition halls.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ultra-thin, high-brightness capacitive touch advertising machine, comprising a body, characterized in that, The body is provided with a profile front frame tempered glass unit (1), a capacitive touch film, an LCD screen (3), a light guide plate film bonding unit (4), an LED light strip heat dissipation aluminum plate bonding unit (5) and a back cover (6). The front of the tempered glass unit (1) of the profile front frame is bonded with tempered glass and capacitive touch film in sequence by glass glue. The LCD screen (3) is fixed on top of the capacitive touch film by a buffer strip; The light guide plate film bonding unit (4) is mounted upside down on the LCD screen (3) by a buffer strip, and silicone limiting blocks are provided on the four sides for fixation; The two sets of LED strip heat dissipation aluminum plate bonding units (5) are respectively flipped on both sides of the light guide plate film bonding unit (4) along the long side direction, and fixed to the front frame by silicone limiting blocks; The back cover (6) is attached to the tempered glass unit (1) of the front frame of the profile by screws, pressing the light guide plate film bonding unit (4) and the LED light strip heat dissipation aluminum plate bonding unit (5) together.

2. The ultra-thin high-brightness capacitive touch advertising machine according to claim 1, characterized in that, The tempered glass back of the profile front frame tempered glass unit (1) is provided with a selectively silkscreened black area (1a) for hiding non-display area components.

3. The ultra-thin high-brightness capacitive touch advertising machine according to claim 1, characterized in that, The light guide plate film bonding unit (4) consists of a reflective sheet (4a), a light guide plate (4b), a diffuser sheet (4c), and a composite film (4d) stacked sequentially from bottom to top, and the four sides are bonded together as a whole by double-sided adhesive; the edge of the light guide plate (4b) is provided with a notch (4e) to avoid the protrusion of the LED light strip welding line.

4. The ultra-thin high-brightness capacitive touch advertising machine according to claim 1, characterized in that, The LED light strip heat dissipation aluminum plate bonding unit (5) includes an LED light strip (5a) and a heat dissipation aluminum plate (5b), which are bonded together by thermally conductive double-sided adhesive. The surface of the heat dissipation aluminum plate (5b) is provided with a non-protruding rib area (5c) for the liquid crystal screen COF to fold through, and a heat dissipation aluminum plate notch (5d) is provided to avoid the FFC cable; The heat dissipation aluminum plate (5b) has raised ribs (5e) on its edge, which are used to press each unit together when the back cover is locked.

5. The ultra-thin high-brightness capacitive touch advertising machine according to claim 1, characterized in that, The silicone limiting block is made of soft silicone material with a hardness of 60-80 Shore A, which fills the gap between the LED light strip heat dissipation aluminum plate bonding unit (5) and the front frame to form an elastic thermal expansion compensation structure.

6. The ultra-thin high-brightness capacitive touch advertising machine according to claim 1, characterized in that... , The rear cover (6) includes an upper cover and a lower cover below the upper cover; The inner side of the top cover is provided with rivet posts (6c) for mounting the motherboard and power board; The lower cover connects to the base, providing vertical support for the entire machine.

7. The ultra-thin high-brightness capacitive touch advertising machine according to claim 1, characterized in that, The two sets of LED light strip heat dissipation aluminum plate bonding units (5) are symmetrically arranged on both sides of the long side of the display area to form a double-sided light-incident backlight with a total power ≥100W.

8. The ultra-thin high-brightness capacitive touch advertising machine according to claim 4, characterized in that, The COF area of ​​the LCD screen (3) corresponds to the non-protruding rib area (5c) of the heat dissipation aluminum plate (5b), so that the COF can be freely folded; the FFC cable passes through the notch (5d) of the heat dissipation aluminum plate and connects to the motherboard.

9. The ultra-thin high-brightness capacitive touch advertising machine according to claim 1, characterized in that, The lower cover of the rear cover (6) is provided with an interface area, which integrates the following interfaces: AC power interface, ON / OFF switch, RS232 input / output interface, USB interface, HDMI input interface and RJ45 interface.

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