A narrow-frame touch display device with a microphone

Abstract

The application relates to the field of display devices, in particular to a narrow-frame touch display device with a microphone. The device comprises a frame (1), a display screen (2) and a touch mainboard (5). The frame (1) is in the shape of a frame, covers the outer peripheral contour of the display screen (2), and protrudes towards the display direction of the display screen (2) to form a protruding part, and an installation through slot is arranged on the inner side of the protruding part. An infrared light filter strip (3) is installed in the installation through slot, the infrared light filter strip (3) is provided with a plurality of sound pickup holes (4), and the sound pickup function is realized through the sound pickup holes (4) of the infrared light filter strip (3). The touch mainboard (5) is installed in the interior of the frame (1), and a microphone sound pickup circuit is integrated on the touch mainboard (5), and the sound pickup area of the microphone sound pickup circuit corresponds to the position of the sound pickup hole (4). The display device has the advantages of narrow frame, simple structure and good sound collecting effect.

Description

Technical Field

[0001] This application relates to the field of display devices, and in particular to a narrow-bezel touch display device with a microphone. Background Technology

[0002] In touch-enabled electronic display devices such as laptops and all-in-one PCs, the microphone is the core component for voice input. The placement of its pickup hole 4 and the integration of its circuitry directly affect the device's appearance, cost, and sound pickup performance. Existing microphone designs for the pickup hole 4 and their circuitry primarily employ two typical schemes, both of which have significant drawbacks: Existing technical solution 1 (such as) Figure 1 and Figure 2 As shown in the diagram): In this design, the microphone hole 4 is located on the frame 1, and its orientation is forward (i.e., towards the user), consistent with the display direction of the screen 2. To accommodate the microphone hole 4 and the microphone's pickup end and related mounting structure, sufficient space must be reserved in the width direction of the frame 1, directly increasing the width of the frame 1 and failing to meet the design trend of "narrow bezel and thin and light" for electronic devices. At the same time, the microphone requires two separate microphone sub-circuit boards (pickup boards), which are separate from the touch mainboard 5 of the touch display device. This not only increases the number of components and material costs but also occupies additional internal space, increasing assembly processes and manufacturing costs.

[0003] Existing technical solution two (such as) Figure 3 As shown): This solution also places the microphone hole 4 on the frame 1, but the microphone hole 4 faces outwards from the frame 1. Taking the top of the frame 1 as an example, the microphone hole 4 is located on the outer side of the top of the frame 1, and the microphone hole 4 faces the sky / ceiling direction (the direction from the display screen 2 to the frame 1 is towards the outer side of the frame 1, and vice versa). This solution also places the microphone hole 4 on the frame 1, and the microphone still needs to be configured separately from the touch motherboard 5, so the problems of high cost and space occupation are not solved. Utility Model Content

[0004] The purpose of this application is to overcome the above-mentioned defects of the prior art and thus provide a narrow-bezel touch display device with a microphone.

[0005] To solve the aforementioned technical problems, the technical solution of this application provides a narrow-bezel touch display device with a microphone, comprising: a bezel 1, a display screen 2, and a touch motherboard 5; wherein, The frame 1 is frame-shaped, covering the outer periphery of the display screen 2, and the frame 1 protrudes towards the display direction of the display screen 2 to form a protrusion. The inner side of the protrusion is provided with a mounting groove. The infrared filter strip 3 is installed into the mounting slot. The infrared filter strip 3 is provided with a plurality of sound pickup holes 4 so as to achieve the sound pickup function through the sound pickup holes 4 of the infrared filter strip 3. The touch motherboard 5 is installed inside the frame 1, and the touch motherboard 5 integrates a microphone pickup circuit. The pickup area of ​​the microphone pickup circuit corresponds to the position of the pickup hole 4.

[0006] As an improvement to the above-mentioned device, the infrared filter strip 3 includes a first surface connected to the inner sidewall of the mounting slot and a second surface connected to the display screen 2, so that the infrared filter strip 3 is located in the transition area between the protrusion of the frame 1 and the display screen 2.

[0007] As an improvement to the above-mentioned device, the axis of the microphone hole 4 is perpendicular to the display direction of the display screen 2; one end of the microphone hole 4 points toward the touch motherboard 5 inside the frame 1, and the other end points toward the direction of the display screen 2.

[0008] As an improvement to the above-mentioned device, the surface of the touch motherboard 5 facing the infrared filter strip 3 is perpendicular to the axis of the pickup hole 4, and the surface of the touch motherboard 5 facing the infrared filter strip 3 integrates a microphone pickup circuit.

[0009] As an improvement to the above-mentioned device, the device also includes a sealing foam 6, which is disposed between the sound pickup hole 4 and the microphone pickup circuit. The sealing foam 6 has an axial through hole, and the through hole is aligned with the sound pickup area of ​​the sound pickup hole 4 and the microphone pickup circuit to form a sealed transmission channel for sound signals.

[0010] As an improvement to the above-mentioned device, one end of the sealing foam 6 is attached to the side of the infrared filter strip 3 facing the touch motherboard 5 and corresponds to the position of the pickup hole 4, while the other end is attached to the pickup area of ​​the microphone pickup circuit of the touch motherboard 5.

[0011] As an improvement to the above-mentioned device, several of the microphone holes are distributed around the circumference of the display screen.

[0012] As an improvement to the above-mentioned device, the infrared filter strip 3 is also provided with mounting holes for installing infrared touch panel emitting lamp beads 7, and a plurality of mounting holes for infrared touch panel emitting lamp beads 7 are provided between the two pickup holes 4.

[0013] As an improvement to the above-mentioned device, the infrared filter strip 3 is formed into a pickup hole 4 by drilling.

[0014] The advantages of this application are: 1. Solving the problem of wide bezels and poor appearance in existing technologies: Existing technologies place the microphone hole 4 on the bezel 1, which requires space to accommodate the microphone structure, resulting in a wider bezel 1; This application provides an installation slot on the inner side of the protruding part of the bezel 1, embeds the infrared filter strip 3 that integrates the microphone hole 4 into the slot and fits tightly with the display screen 2, and the microphone function is realized by relying on the infrared filter strip 3, without the need to widen the bezel 1, which fits the design trend of "narrow bezel and thin and light" in electronic devices and improves the simplicity of the device's appearance.

[0015] 2. Reduced costs and saved internal space: Existing technologies require a separate microphone sub-circuit board (pickup board), which is separate from the touch motherboard 5, increasing the number of components and space occupation; This application integrates the microphone pickup circuit directly into the touch motherboard 5, eliminating the separate microphone sub-circuit board, reducing material costs and assembly processes, while saving internal space and facilitating a compact internal structure layout.

[0016] 3. This application significantly improves sound acquisition efficiency and ensures clear and stable sound reception by using the sealing between the infrared filter strip 3 and the display screen 2, and the sealing foam 6 between the pickup hole 4 and the touch motherboard 5 (to prevent sound diffusion). Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a touch display device in the prior art where the microphone hole 4 is located on the frame 1 and faces forward (towards the user); Figure 2 This is a cross-sectional schematic diagram of a touch display device in the prior art where the microphone hole 4 is located on the frame 1 and faces forward (towards the user); Figure 3 This is a three-dimensional schematic diagram of a touch display device in the prior art, in which the microphone hole 4 is located at the top of the frame 1 and faces outward from the frame 1; Figure 4 This is a schematic diagram of the narrow-bezel touch display device with a microphone according to this application; Figure 5 for Figure 4 A partial schematic diagram near the bottom (showing the pickup hole 4 opened in the bottom infrared filter strip 3); Figure 6 for Figure 5 A magnified view of a section (showing the distribution structure of the pickup hole 4 in the infrared filter strip 3 and the openings of the infrared touch panel emitting LED beads 7). Figure 7 This is a schematic diagram of the structure of the sealing foam 6. Detailed Implementation

[0018] The technical solutions provided in this application are further illustrated below with reference to the embodiments.

[0019] The narrow-bezel touch display device with a microphone disclosed in this application, such as... Figure 4-7 As shown, it includes: a frame 1, a display screen 2, an infrared filter strip 3, a microphone pickup hole 4, a touch panel 5, sealing foam 6, an infrared touch panel emitting LED bead 7, and a microphone pickup circuit. The specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0020] Frame 1: The frame is a closed frame that covers the outer perimeter of the display screen 2 and protects the edges of the display screen 2. Frame 1 protrudes in the display direction (towards the user) of the display screen 2, forming a protrusion. The protrusion has a mounting slot along its circumference for mounting the infrared filter strip 3. The interior of frame 1 has a mounting space for fixing and mounting the touch motherboard 5.

[0021] Display screen 2: It is flat and is the display component of the electronic device. It is mounted on the frame 1 and the display surface faces the user (in the same direction as the protrusion of the protrusion of the frame 1). The edge of the display screen 2 is connected to the infrared filter strip 3.

[0022] Infrared filter strip 3: It surrounds the inner circumference of the frame 1, and its surface is drilled with two types of through holes, including: mounting holes for the microphone hole 4 and the infrared touch panel emitting LED beads 7; the two types of through holes are distributed at intervals, specifically, several mounting holes for the infrared touch panel emitting LED beads 7 are set between every two microphone holes 4. The infrared filter strip 3 is embedded in the mounting groove of the protruding part of the frame 1. The outer side wall of the infrared filter strip 3 (the side facing away from the display screen 2) is in contact with the inner side wall of the mounting groove, and the inner side wall of the infrared filter strip 3 (the side facing the display screen 2) is connected to the edge of the display screen 2. The whole is located in the transition area between the protruding part of the frame 1 and the display screen 2, without obstructing the effective display area of ​​the display screen 2.

[0023] Sound pickup hole 4: A circular through hole, located on the infrared filter strip 3. The axis of sound pickup hole 4 is perpendicular to the display direction of display screen 2; one end of sound pickup hole 4 faces the touch motherboard 5 inside the bezel 1, and the other end faces the direction of display screen 2.

[0024] Touch motherboard 5: Flat in shape, it is the core control board of the touch display device. The touch motherboard 5 is installed within the mounting space inside the frame 1 and integrates a microphone pickup circuit. The microphone pickup circuit is integrated onto the surface of the touch motherboard 5 facing the infrared filter strip 3, with the pickup area corresponding to the position of the pickup hole 4, ensuring that the sound signal from the pickup hole 4 can be accurately transmitted to the microphone (e.g., ...). Figure 7 (As shown). Those skilled in the art should understand how to integrate the microphone pickup circuit into the touch motherboard 5, and the circuit connection method used for integration is a mature technology in this field.

[0025] Sealing foam 6: It is cylindrical in shape and has a through circular hole in the axial direction (the diameter of the hole is adapted to the diameter of the pickup hole 4). The axis of sealing foam 6 coincides with the axis of pickup hole 4. It is set between pickup hole 4 and touch motherboard 5. One end is attached to the surface of infrared filter strip 3 facing the touch motherboard 5 (covering the outlet end of pickup hole 4), and the other end is attached to the surface of touch motherboard 5 (covering the pickup area of ​​microphone pickup circuit). The through hole of sealing foam 6 is aligned with pickup hole 4 and the pickup area of ​​microphone pickup circuit to form a "sealed transmission channel" for sound signals to be transmitted from the outside to microphone pickup circuit of touch motherboard 5, preventing sound from spreading through the gap.

[0026] Infrared touch panel emitting LED bead 7: In the form of granules, it is the signal emitting component for infrared touch function and has pins for electrical connection. The infrared touch panel emitting LED bead 7 is embedded in the mounting hole of the infrared touch panel emitting LED bead 7 installed on the infrared filter strip 3. After the pin passes through the mounting hole, it is electrically connected to the corresponding pad on the touch motherboard 5 to realize power supply and infrared signal transmission.

[0027] This application has at least the following advantages: 1. Solving the problem of wide bezels and poor appearance in existing technologies: Existing technologies place the microphone hole 4 on the bezel 1, which requires space to accommodate the microphone structure, resulting in a wider bezel 1; This application provides an installation slot on the inner side of the protruding part of the bezel 1, embeds the infrared filter strip 3 that integrates the microphone hole 4 into the slot and fits tightly with the display screen 2, and the microphone function is realized by relying on the infrared filter strip 3, without the need to widen the bezel 1, which fits the design trend of "narrow bezel and thin and light" in electronic devices and improves the simplicity of the device's appearance.

[0028] 2. Reduced costs and saved internal space: Existing technologies require a separate microphone sub-circuit board (pickup board), which is separate from the touch motherboard 5, increasing the number of components and space occupation; This application integrates the microphone pickup circuit directly into the touch motherboard 5, eliminating the separate microphone sub-circuit board, reducing material costs and assembly processes, while saving internal space and facilitating a compact internal structure layout.

[0029] 3. This application significantly improves sound acquisition efficiency and ensures clear and stable sound reception by using the sealing between the infrared filter strip 3 and the display screen 2, and the sealing foam 6 between the pickup hole 4 and the touch motherboard 5 (to prevent sound diffusion).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A narrow-bezel touch display device with a microphone, characterized in that, include: The frame (1), the display screen (2), and the touch motherboard (5) are all included. The frame (1) is frame-shaped, covering the outer periphery of the display screen (2), and the frame (1) protrudes towards the display direction of the display screen (2) to form a protrusion. The inner side of the protrusion is provided with a mounting groove. The infrared filter strip (3) is installed into the mounting slot. The infrared filter strip (3) is provided with several sound pickup holes (4) so ​​as to achieve the sound pickup function through the sound pickup holes (4) of the infrared filter strip (3). The touch motherboard (5) is installed inside the frame (1), and the touch motherboard (5) integrates a microphone pickup circuit, the pickup area of ​​the microphone pickup circuit corresponds to the position of the pickup hole (4).

2. The narrow-bezel touch display device with a microphone according to claim 1, characterized in that, The infrared filter strip (3) includes a first surface connected to the inner sidewall of the mounting slot and a second surface connected to the display screen (2), so that the infrared filter strip (3) is located in the transition area between the protrusion of the frame (1) and the display screen (2).

3. The narrow-bezel touch display device with a microphone according to claim 1, characterized in that, The axis of the microphone hole (4) is perpendicular to the display direction of the display screen (2); one end of the microphone hole (4) points toward the touch motherboard (5) inside the frame (1), and the other end points toward the display screen (2).

4. The narrow-bezel touch display device with a microphone according to claim 3, characterized in that, The surface of the touch motherboard (5) facing the infrared filter strip (3) is perpendicular to the axis of the pickup hole (4), and the surface of the touch motherboard (5) facing the infrared filter strip (3) integrates a microphone pickup circuit.

5. The narrow-bezel touch display device with a microphone according to claim 4, characterized in that, It also includes sealing foam (6), which is disposed between the pickup hole (4) and the microphone pickup circuit. The sealing foam (6) has a through hole in the axial direction, and the through hole is aligned with the pickup area of ​​the pickup hole (4) and the microphone pickup circuit to form a sealed transmission channel for sound signals.

6. The narrow-bezel touch display device with a microphone according to claim 5, characterized in that, One end of the sealing foam (6) is attached to the side of the infrared filter strip (3) facing the touch motherboard (5) and corresponds to the position of the pickup hole (4), while the other end is attached to the pickup area of ​​the microphone pickup circuit of the touch motherboard (5).

7. The narrow-bezel touch display device with a microphone according to claim 1, characterized in that, Several of the aforementioned pickup holes are distributed circumferentially along the display screen (2).

8. The narrow-bezel touch display device with a microphone according to claim 7, characterized in that, The infrared filter strip (3) is also provided with mounting holes for installing infrared touch panel emitting lamp beads (7), and a number of mounting holes for infrared touch panel emitting lamp beads (7) are provided between the two pickup holes (4).

9. The narrow-bezel touch display device with a microphone according to claim 1, characterized in that, The infrared filter strip (3) is formed into a pickup hole (4) by drilling.

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