Display module

Abstract

This invention relates to a display module, comprising: a back panel; a sheet metal plate disposed on the inner side of the back panel; a frame disposed on the outer side of the sheet metal plate and fixedly connected to the back panel, the frame being made of plastic; an infrared PCB disposed on the sheet metal plate; and a light filter strip connected to both the sheet metal plate and the frame, the light filter strip being positioned opposite to a light emitter on the infrared PCB. Compared to existing technologies, the use of plastic for the frame results in a lighter weight, which helps reduce the overall weight of the infrared touch all-in-one machine, thereby improving the user experience. Furthermore, the plastic frame is easier to manufacture and has lower costs, significantly reducing overall production costs and improving economic efficiency. Simultaneously, the sheet metal plate compensates for the lack of strength in the plastic frame, providing stable support.

Description

Technical Field

[0001] This invention relates to the field of electronic device processing technology, and in particular to a display module. Background Technology

[0002] Currently, a wide variety of smart electronic products on the market not only provide great convenience for people's work and study, but also greatly enrich their entertainment life. Among these, infrared touch screen all-in-one machines are favored by manufacturers and consumers due to their simple structure and working principle, and high reliability.

[0003] An infrared touch all-in-one machine is a type of infrared touch-enabled intelligent interactive device, mainly assembled from components such as an aluminum frame, backlight module, tempered glass, and infrared PCB. Using an aluminum frame as the supporting frame offers advantages such as high structural strength, resistance to deformation, and accurate positioning of the infrared PCB board along its X / Y / Z axes, ensuring accurate alignment of the infrared PCB's emitting and receiving lights and improving touch performance. However, the aluminum frame is relatively heavy, resulting in a large overall weight and impacting the user experience. Furthermore, the machining cycle for the aluminum frame is long, and the processing cost is high, significantly increasing the overall cost of the device. Summary of the Invention

[0004] Therefore, it is necessary to provide a display module that aims to solve the problems of existing technologies affecting user experience and high overall cost.

[0005] This application provides a display module, which includes:

[0006] Back panel;

[0007] A sheet metal pressure plate, wherein the sheet metal pressure plate is disposed on the inner side of the back plate;

[0008] The frame is located on the outside of the sheet metal plate and is fixedly connected to the back plate. The frame is made of plastic.

[0009] Infrared PCB, the infrared PCB being disposed on the sheet metal platen; and

[0010] A filter strip is connected to the sheet metal plate and the frame respectively, and the filter strip is arranged opposite to the light emitter on the infrared PCB.

[0011] The above-described display module is used in an infrared touch all-in-one machine. During production and assembly, the sheet metal plate is first assembled to the inside of the back panel. Then, the light filter strip and infrared PCB are sequentially installed onto the sheet metal plate, ensuring that the light filter strip and the light emitter of the infrared PCB are aligned. Finally, the frame is connected and fixed to the sheet metal plate and the light filter strip. Compared to existing technologies, the frame is made of plastic, making it lighter and reducing the overall weight of the infrared touch all-in-one machine, thus improving the user experience. Furthermore, the plastic frame is easier to process and manufacture, and its low cost significantly reduces the overall production cost, improving economic efficiency. At the same time, the sheet metal plate compensates for the lack of strength in the plastic frame, providing stable support.

[0012] The technical solution of this application will be further described below:

[0013] In one embodiment, the display module includes a first fastener, and the sheet metal plate includes a first connecting portion, which is connected and fixed to the back plate by the first fastener.

[0014] In one embodiment, the display module further includes a second fastener, the sheet metal plate includes a second connecting portion that is angled to the first connecting portion, the second connecting portion is connected and fixed to the infrared PCB by the second fastener, and the end of the infrared PCB abuts against the inner sidewall of the frame.

[0015] In one embodiment, the display module further includes a third fastener, and the sheet metal plate further includes a third connecting portion that is angularly connected to the second connecting portion. The third connecting portion is connected and fixed to the filter strip by the third fastener.

[0016] In one embodiment, one of the filter strip and the frame is provided with a first slot, and the other of the filter strip and the frame is provided with a first protrusion, the first protrusion being snapped into the first slot.

[0017] In one embodiment, one of the back panel and the frame is provided with a positioning insertion part, and the other of the back panel and the frame is provided with a positioning insertion groove, and the positioning insertion part is inserted into the positioning insertion groove.

[0018] In one embodiment, one of the back panel and the frame is provided with a second slot, and the other of the back panel and the frame is provided with a second protrusion, the second protrusion being snapped into the second slot.

[0019] In one embodiment, the display module further includes a fourth fastener, through which the frame is connected and fixed to the back panel.

[0020] In one embodiment, the display module further includes a glass panel and a backlight module, the sheet metal plate is provided with a support portion, the edge of the glass panel is clamped between the filter strip and the support portion, and the backlight module is disposed on the inner side of the back plate;

[0021] The display module also includes a flexible pad, which is pressed between the glass panel and the support portion.

[0022] In one embodiment, the fixed position of the glass panel is located between the sheet metal pressure plate and the frame;

[0023] The frame is detachably connected to the back panel. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the assembly structure of the display module in this application;

[0027] Figure 2 This is a schematic diagram of the assembly of the sheet metal pressure plate and the back plate in this application;

[0028] Figure 3 This is a schematic diagram of the structure in this application where the frame and back panel are fixed by a snap fastener.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Display module; 10. Backplate; 11. Positioning insertion part; 12. Second latching protrusion; 20. Sheet metal pressure plate; 21. First connecting part; 22. Second connecting part; 23. Third connecting part; 24. Bearing part; 30. Frame; 31. First slot; 32. Positioning insertion slot; 33. Second slot; 40. Infrared PCB; 50. Filter strip; 51. First latching protrusion; 60. First fastener; 60a. Second fastener; 60b. Third fastener; 60c. Fourth fastener; 70. Glass panel; 80. Backlight module; 90. Flexible pad. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figure 1 As shown, a display module 100 is illustrated in an embodiment of this application, which includes: a back plate 10, a sheet metal plate 20, a frame 30, an infrared PCB 40, and a light filter strip 50.

[0033] A sheet metal pressure plate 20 is located on the inner side of the back plate 10; a frame 30 is located on the outer side of the sheet metal pressure plate 20 and is fixedly connected to the back plate 10. The frame 30 is made of plastic. Preferably, the frame 30 and the back plate 10 are detachably connected, thereby facilitating assembly and disassembly during production or maintenance.

[0034] The infrared PCB 40 is mounted on the sheet metal plate 20; the filter strip 50 is connected to both the sheet metal plate 20 and the frame 30, and the filter strip 50 is positioned opposite to the light-emitting element on the infrared PCB 40. Optionally, the light-emitting element can be any one of the following: LED beads, lights, LED strips, etc.

[0035] In addition, the display module 100 also includes a glass panel 70 and a backlight module 80. The glass panel 70 is fixed between the sheet metal pressure plate 20 and the frame 30, so that the sheet metal pressure plate 20 and the frame 30 fit together to clamp and fix the glass panel 70. Specifically, the sheet metal pressure plate 20 is provided with a support part 24, the edge of the glass panel 70 is clamped between the light filter strip 50 and the support part 24, and the backlight module 80 is disposed on the inner side of the back plate 10. The support part 24 is a right-angled or near-right-angled stepped structure, used to load and support the glass panel 70, and can achieve bidirectional positioning of the glass panel 70 on the ground and side, ensuring that the glass panel 70 is installed stably and with high positional accuracy.

[0036] Furthermore, the filter strip 50 is pressed onto the upper surface of the glass panel 70, which can further restrict the degree of freedom of the glass panel 70 to move upward, thereby improving the installation stability of the glass panel 70.

[0037] Optionally, the glass panel 70 can be, but is not limited to, any one of tempered glass, liquid crystal glass, etc. Preferably, in this embodiment, the glass panel 70 is made of tempered glass. Tempered glass (also known as reinforced glass) is glass with compressive stress on its surface. When the glass is broken by external force, the fragments will form small, blunt-angled particles similar to a honeycomb, which are less likely to cause serious injury to the human body. Tempered glass of the same thickness has an impact resistance 3 to 5 times that of ordinary glass, and its bending strength is also 3 to 5 times that of ordinary glass. Tempered glass has good thermal stability and can withstand temperature differences 3 times greater than ordinary glass, including temperature changes of up to 300°C.

[0038] Furthermore, based on the above embodiments, the display module 100 also includes a flexible pad 90, which is pressed between the glass panel 70 and the support portion 24. The flexible pad 90, through its own elastic deformation, helps to reduce the rigid pressure between the filter strip 50, the glass panel 70, and the back plate 10, preventing the glass panel 70 from being damaged due to excessive pressure. In addition, the pressed flexible pad 90 also has excellent sealing performance, effectively preventing fine dust and rainwater from the external environment from entering the internal components and causing damage to electrical components, thus avoiding affecting the display effect.

[0039] Optionally, the flexible pad 90 may be, but is not limited to, a foam pad, a rubber pad, etc.

[0040] The backlight module 80 can be fixed to the inner wall of the back plate 10 by means of adhesive bonding, which is simple to install and has a reliable connection.

[0041] In summary, implementing the technical solution of this embodiment will have the following beneficial effects: The display module 100 of the above solution is used in an infrared touch all-in-one machine. During production and assembly, the backlight module 80 is first assembled with the sheet metal plate 20 to the inside of the back plate 10, and then the filter strip 50 and the infrared PCB 40 are installed on the sheet metal plate 20 in sequence. Finally, the frame 30 is connected and fixed to the sheet metal plate 20 and the filter strip 50.

[0042] Compared to existing technologies, the frame 30 is made of plastic, making it lighter and reducing the overall weight of the infrared touch all-in-one machine, thereby improving the user experience. Furthermore, the plastic frame 30 is easier to process and manufacture, and has a lower cost, which can significantly reduce the overall production cost and improve economic efficiency. At the same time, the sheet metal plate 20 can compensate for the lack of strength in the plastic frame 30 and provide stable support for it.

[0043] Please continue reading. Figure 2In some embodiments, the display module 100 includes a first fastener 60, and the sheet metal pressure plate 20 includes a first connecting portion 21. The first connecting portion 21 is connected and fixed to the back plate 10 through the first fastener 60. The first connecting portion 21 is a parallel plate segment that can contact the inner sidewall plane of the back plate 10, with a large contact area and stable support connection.

[0044] The first fastener 60 uses a threaded connection component such as a bolt. The back plate 10 and the first connecting part 21 have matching through holes and threaded holes, facilitating screw-on locking with the first fastener 60. This makes the installation of the sheet metal pressure plate 20 and the back plate 10 simple and the connection stable and reliable. Of course, in other embodiments, the first connecting part 21 and the back plate 10 can also be connected using any of the following methods: snap-fit ​​connection, adhesive connection, magnetic connection, etc.

[0045] Please continue reading. Figure 1 Furthermore, based on the above embodiments, the display module 100 also includes a second fastener 60a, and the sheet metal plate 20 includes a second connecting part 22 that is angularly connected to the first connecting part 21. The second connecting part 22 is connected and fixed to the infrared PCB 40 by the second fastener 60a, and the end of the infrared PCB 40 abuts against the inner sidewall of the frame 30.

[0046] The second connecting part 22 is a vertical plate segment, perpendicular or nearly perpendicular to the first connecting part 21. The first connecting part 21 and the second connecting part 22 are connected by an arc transition to avoid stress concentration and improve the structural load-bearing performance. The second connecting part 22 has a planar contact with the infrared PCB 40, with a large contact area, which helps to improve the assembly stability of the two.

[0047] The second fastener 60a uses a bolt or other threaded connection component. The infrared PCB 40 and the second connecting part 22 have matching through holes and threaded holes, facilitating screw-on locking with the second fastener 60a. This simplifies the installation of the sheet metal pressure plate 20 and the infrared PCB 40, ensuring a stable and reliable connection. Of course, in other embodiments, the second connecting part 22 and the infrared PCB 40 can also be connected using any of the following methods: snap-fit ​​connection, adhesive bonding, magnetic connection, etc.

[0048] In addition, based on the above embodiments, the display module 100 also includes a third fastener 60b, and the sheet metal pressure plate 20 also includes a third connecting part 23 that is angularly connected to the second connecting part 22. The third connecting part 23 is connected and fixed to the filter strip 50 by the third fastener 60b.

[0049] The third connecting part 23 is arranged perpendicularly or approximately perpendicularly to the second connecting part 22. The third connecting part 23 is supported below the filter strip 50, and the third connecting part 23 is a parallel plate segment, which can form a planar contact with the filter strip 50, with a large contact area and a stable support connection.

[0050] The third fastener 60b uses a bolt or other threaded connection component. The filter strip 50 and the third connecting part 23 have matching through holes and threaded holes, facilitating screw-on locking with the third fastener 60b. This makes the installation of the sheet metal pressure plate 20 and the filter strip 50 simple and the connection stable and reliable. Of course, in other embodiments, the third connecting part 23 and the filter strip 50 can also be connected using any of the following methods: snap-fit ​​connection, adhesive connection, magnetic connection, etc.

[0051] Please continue reading. Figure 3 Furthermore, the display module also includes a fourth fastener 60c, through which the frame 30 is connected and fixed to the back plate 10. The fourth fastener 60c is a threaded connection component such as a bolt. The back plate 10 and the frame 30 have matching through holes and threaded holes, facilitating screwing and locking with the fourth fastener 60c, making the installation of the back plate 10 and the frame 30 simple and the connection stable and reliable. Of course, in other embodiments, the back plate 10 and the frame 30 can also be connected by any of the following methods: snap-fit ​​connection, adhesive connection, magnetic connection, etc.

[0052] In actual processing, after all components are assembled, the entire machine needs to be rotated 180° so that the back plate 10 faces upwards, which facilitates the installation of the fourth fastener 60c.

[0053] Please continue reading. Figure 1 Furthermore, in some embodiments, one of the filter strip 50 and the frame 30 is provided with a first slot 31, and the other of the filter strip 50 and the frame 30 is provided with a first protrusion 51. The first protrusion 51 is engaged with the first slot 31. Specifically, in this embodiment, the filter strip 50 is provided with a first protrusion 51, and the inner wall of the frame 30 is provided with a first slot 31. After the first protrusion 51 and the first slot 31 are engaged, it not only provides the connection strength between the filter strip 50 and the frame 30, but also enhances the sealing performance, preventing dust from entering the interior of the frame 30 and affecting the light emission of the infrared PCB 40, thereby causing touch failure.

[0054] As is understandable, the infrared touch screen all-in-one machine has a rectangular structure, with infrared PCBs 40 mounted on opposite sides of the frame 30. One infrared PCB 40 is the transmitter, and the other is the receiver. The infrared light emitted by the transmitter is received by the receiver. When the user uses the infrared touch screen all-in-one machine, their finger slides on the glass panel 70, blocking the infrared light, thus enabling them to write information or input operation commands.

[0055] In addition, based on any of the above embodiments, one of the back panel 10 and the frame 30 is provided with a positioning insertion part 11, and the other of the back panel 10 and the frame 30 is provided with a positioning insertion groove 32, and the positioning insertion part 11 is inserted into the positioning insertion groove 32. During installation, the positioning insertion part 11 is inserted into the positioning insertion groove 32, which can achieve pre-positioning and fixing of the frame 30.

[0056] Furthermore, one of the back panel 10 and the frame 30 is provided with a second slot 33, and the other of the back panel 10 and the frame 30 is provided with a second protrusion 12, which is snapped into place with the second slot 33. In this way, the frame 30 and the back panel 10 can be securely engaged, and the frame 30 is less likely to deform under external force and detach from the back panel 10. Specifically, in this embodiment, the inner sidewall of the frame 30 is provided with a second slot 33, and the back panel 10 is provided with a second protrusion 12.

[0057] In addition to the above, this application also provides an infrared touch all-in-one machine, which includes the display module 100 as described in any of the above embodiments.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0060] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this invention, 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 part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0064] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A display module, characterized in that, include: Back panel; A sheet metal pressure plate, wherein the sheet metal pressure plate is disposed on the inner side of the back plate; The frame is located on the outside of the sheet metal plate and is fixedly connected to the back plate. The frame is made of plastic. An infrared PCB is disposed on the sheet metal plate. as well as A filter strip is connected to the sheet metal plate and the frame respectively, and the filter strip is arranged opposite to the light emitter on the infrared PCB; The display module includes a first fastener, and the sheet metal plate includes a first connecting part, which is connected and fixed to the back plate by the first fastener. The display module further includes a second fastener, and the sheet metal plate includes a second connecting part that is angled to the first connecting part. The second connecting part is connected and fixed to the infrared PCB by the second fastener, and the end of the infrared PCB abuts against the inner sidewall of the frame.

2. The display module according to claim 1, characterized in that, The display module further includes a third fastener, and the sheet metal plate further includes a third connecting part that is angularly connected to the second connecting part. The third connecting part is connected and fixed to the filter strip by the third fastener.

3. The display module according to claim 1, characterized in that, The filter strip and the frame are provided with a first slot, and the other filter strip and the frame are provided with a first protrusion, which is snapped into the first slot.

4. The display module according to claim 1, characterized in that, One of the back panel and the frame is provided with a positioning insertion part, and the other of the back panel and the frame is provided with a positioning insertion groove, and the positioning insertion part is inserted into the positioning insertion groove.

5. The display module according to claim 1, characterized in that, One of the back panel and the frame is provided with a second slot, and the other of the back panel and the frame is provided with a second protrusion, which is snapped into the second slot.

6. The display module according to claim 1, characterized in that, The display module also includes a fourth fastener, through which the frame is connected and fixed to the back plate.

7. The display module according to claim 1, characterized in that, The display module also includes a glass panel and a backlight module. The sheet metal plate has a supporting part. The edge of the glass panel is clamped between the filter strip and the supporting part. The backlight module is disposed on the inner side of the back plate.

8. The display module according to claim 7, characterized in that, The display module also includes a flexible pad, which is pressed between the glass panel and the support portion.

9. The display module according to claim 7, characterized in that, The glass panel is fixed between the sheet metal pressure plate and the frame.

10. The display module according to claim 9, characterized in that, The frame is detachably connected to the back panel.

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