Optical touch frame and display device

Abstract

The utility model discloses an optical touch frame and a display device, the optical touch frame comprises a first frame part, the first frame part extends along a first direction, the first frame part is provided with a first circuit board cavity, the end face of the first frame part is provided with a first port communicated with the first circuit board cavity, and the first port is provided with a second port communicated with the second circuit board cavity; the area, close to the first port, of the side wall of the first circuit board cavity is provided with a wiring port, and the opening direction of the wiring port is the same as that of the first port; the first touch control circuit board is located in the first circuit board cavity; the waterproof plug is arranged at the first port so as to seal the first port; and the first connecting line is connected with the end part of the first circuit board, and the first connecting line extends out of the first frame part from the wiring port. The waterproof plug in the optical touch frame has a good water blocking effect, the integrity and the sealing performance of the end face of the first frame part are guaranteed, and the influence of water drops entering from a splicing gap on the first touch circuit board in the first frame part is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, and particularly relates to an optical touch frame and a display device. Background Art

[0002] As a multifunctional and interactive multimedia device, an infrared touch display screen can effectively improve the communication efficiency of groups, as well as the convenience of use and writing, and is widely used in the fields of education and meetings. Conventional infrared touch solutions require a hollow frame structure to be set up, with a touch circuit board placed inside. The frame is connected at the corners to form a loop. Since the frame in such solutions is spliced, there are assembly gaps at positions such as corners and filter strip seams, resulting in limited waterproof performance.

[0003] When the use environment is humid, such as during the period of southern China's return of humidity or plum rain season, moisture in the external environment is likely to seep into the frame, corrode the touch circuit board, causing poor touch and affecting product performance. In addition, in order to maintain the cleanliness of the machine, if the end user wipes the machine with a wet rag with water, it is also easy for water to seep in from the splicing gaps of the frame. In this case, water droplets enter the frame cavity from the gaps, damaging the touch circuit board, resulting in poor touch. Summary of the Utility Model

[0004] The utility model provides an optical touch frame and a display device, and the above optical touch frame can avoid the influence of water droplets entering from the splicing gaps on the first touch circuit board in the first frame part.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] An optical touch frame, comprising:

[0007] A first frame part, the first frame part extends along a first direction, the first frame part has a first circuit board cavity, an end face of the first frame part has a first port communicating with the first circuit board cavity, a side wall of the first circuit board cavity has a wiring port, and an opening direction of the wiring port is different from an opening direction of the first port;

[0008] A first touch circuit board, the first touch circuit board is located in the first circuit board cavity;

[0009] A waterproof plug, the waterproof plug is arranged at the first port to seal the first port;

[0010] A first connecting wire, the first connecting wire is connected to an end of the first touch circuit board, and the first connecting wire extends out of the first frame part from the wiring port.

[0011] Optionally, the first frame part further includes a functional cavity;

[0012] The end face of the first frame part has a second port communicating with the functional cavity;

[0013] The wiring port communicates the first circuit board cavity with the functional cavity;

[0014] The first connecting wire extends out of the first frame part through the wiring port and the second port.

[0015] Optionally, the first frame part includes a frame body and a light filtering strip;

[0016] The frame body includes the functional cavity, and the end face of the frame body has the second port;

[0017] The light filtering strip has the first circuit board cavity, and the end face of the light filtering strip has the first port.

[0018] Optionally, it further includes a second frame part oppositely arranged with the first frame part;

[0019] The wiring port is located on the side of the first circuit board cavity away from the second frame part, and the functional cavity is located on the side of the first circuit board cavity away from the second frame part.

[0020] Optionally, in the functional cavity, the first connecting wire can be routed close to the first side wall of the functional cavity, and the first side wall is the side wall of the functional cavity away from the first circuit board cavity.

[0021] Optionally, the waterproof plug is in interference fit with the first port.

[0022] Optionally, the material of the waterproof plug is a compressible elastic material.

[0023] Optionally, the material of the waterproof plug is foam, silica gel or plastic.

[0024] Optionally, the waterproof plug has a gripper, and the gripper is exposed outside the first frame part.

[0025] Optionally, the waterproof plug has a first guiding part, and the first port has a second guiding part. The first guiding part cooperates with the second guiding part to insert the waterproof plug into the first port.

[0026] Optionally, the first guiding part is a guiding strip, and the second guiding part is a guiding groove extending along the extending direction of the first frame part. The guiding strip can be inserted into the guiding groove and is in sliding fit with the guiding groove along the extending direction of the first frame part.

[0027] The present utility model further provides a display device, which includes any one of the optical touch frames provided in the above technical solutions.

[0028] The present utility model provides an optical touch frame and a display device. In this optical touch frame, it includes a first frame part. The first frame part has a first circuit board cavity, and the end face of the first frame part has a first port communicating with the first circuit board cavity. The first port of the first circuit board cavity can be sealed by a waterproof plug. The first frame part can be spliced with an adjacent frame part through a connecting corner. There is a splicing gap between the end face of the first frame part and the splicing surface of the connecting corner. Since the waterproof plug plays a good water-blocking role, it ensures the integrity and tightness of the end face of the first frame part, and can prevent water droplets entering from the splicing gap from entering the first circuit board cavity through the first port of the first frame part. Furthermore, it can avoid the influence of moisture on the first touch circuit board in the first circuit board cavity, thereby improving the reliability of the product. And in the area of the side wall of the first circuit board cavity of the first frame part near the first port, there is a wiring port, and the opening direction of the wiring port is different from the opening direction of the first port. The first connecting wire connected to the first touch circuit board in the first circuit board cavity can bypass out from the wiring port on the side wall of the first circuit board cavity instead of from the first port, so as to be connected to the touch circuit board in the adjacent frame part to ensure the circuit performance of the optical touch frame. Moreover, the structure of this optical touch frame is simple, convenient for assembly and maintenance, and has a high cost performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of an infrared touch display screen in the related art;

[0030] Figure 2 is Figure 1 an enlarged view of area A in

[0031] Figure 3 is a schematic cross-sectional diagram of an infrared touch display screen in the related art;

[0032] Figure 4 is a schematic structural diagram of an optical touch frame provided by an embodiment of the present utility model;

[0033] Figure 5 is Figure 4 an enlarged view of area B in

[0034] Figure 6 is a schematic structural diagram of a splicing part of a frame part provided by an embodiment of the present utility model;

[0035] Figure 7 is an exploded view of a splicing part of a frame part provided by an embodiment of the present utility model;

[0036] Figure 8Schematic diagram of a structure at the splicing part of a frame part in the related art;

[0037] Figure 9 Schematic diagram of a structure at the splicing part of a frame part in the related art;

[0038] Figure 10 Schematic diagram of a structure at the splicing part of a frame part provided by an embodiment of the present invention;

[0039] Figure 11 Exploded view of a structure at the splicing part of a frame part provided by an embodiment of the present invention;

[0040] Figure 12 Schematic diagram of a structure at the splicing part of a frame part provided by an embodiment of the present invention;

[0041] Figure 13 Schematic diagram of a structure of a waterproof plug provided by an embodiment of the present invention;

[0042] Figure 14 Schematic diagram of the assembly of a waterproof plug and a first frame part provided by an embodiment of the present invention;

[0043] Figure 15 Schematic diagram of a structure at the splicing part of a frame part provided by an embodiment of the present invention.

[0044] Icon:

[0045] 01 - Frame; 011 - Top - side frame; 012 - Bottom - side frame; 013 - First - side frame; 014 - Second - side frame; 02 - Touch control circuit board; 03 - Connecting wire; 04 - Connecting corner; 05 - Tubular light - filtering strip; 06 - Waterproof structure;

[0046] 1 - Frame part; 11 - First frame part; 111 - Frame body; 112 - Light - filtering strip; 12 - Second frame part; 13 - Third frame part; 14 - Fourth frame part; 101 - Wiring port; 2 - Touch control circuit board; 21 - First touch control circuit board; 3 - Connecting corner; 31 - Inner corner; 32 - Outer corner; 4 - Connecting wire; 41 - First connecting wire; 5 - Waterproof plug; 51 - Gripping part; 52 - First guiding part; 6 - Light - filtering strip; E - Circuit board cavity; F - Function cavity. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0048] In the related art, the structure of an infrared touch display screen can be as Figure 1 shown, Figure 2 which is Figure 1 an enlarged view of area A in Figure 3 and is a schematic cross-sectional view of the infrared touch display screen at area A; Figure 1 In the infrared touch display screen, the optical touch frame includes four spliced frame parts 01. The corner part of the optical touch frame is spliced with two adjacent frame parts 01 through a connecting corner 04. There is a splicing gap between the frame part 01 and the connecting corner 04. A touch circuit board 02 is arranged in the inner cavity of each frame part 01. The touch circuit boards 02 in the four frame parts 01 are electrically connected in sequence through three connecting wires 03. The connecting wire 01 is routed inside the connecting corner 04.

[0049] Among them, the four frame parts 01 of the optical touch frame can include a top-side frame part 011, a bottom-side frame part 012, a first-side frame part 013, and a second-side frame part 014. The top-side frame part 011 and the bottom-side frame part 012 are arranged opposite to each other. The first-side frame part 013 and the second-side frame part 014 are arranged opposite to each other. Specifically, the top-side frame part 011 refers to the frame part located at the top of the infrared touch display screen in the normal use state of the infrared touch display screen. The bottom-side frame part 012 refers to the frame part located at the bottom of the infrared touch display screen in the normal use state of the infrared touch display screen. The first-side frame part 013 and the second-side frame part 014 respectively refer to the frame parts located on the left and right sides of the display screen in the normal use state of the infrared touch display screen. Whether the first-side frame part 013 and the second-side frame part 014 are on the left or right side of the display screen is not limited here and depends on the actual situation.

[0050] When the use environment is humid or when a wet rag with water is used to wipe the display screen, external water droplets easily enter the frame cavity through the splicing gap between the end face of the frame part 01 and the splicing surface of the connecting corner 04, as Figure 3 shown, and then corrode the touch circuit board 02 inside the frame part, affecting the product performance of the infrared touch display screen.

[0051] For example, as Figure 3 shown, the path L1 is the path for external water droplets to enter the inner cavity of the bottom-side frame part 012. The moisture entering the optical touch frame from the splicing gap adjacent to the bottom-side frame part 012 easily enters the inner cavity of the bottom-side frame part 012 from the port on the end face of the bottom-side frame part 012 under the action of gravity, and then corrodes the touch circuit board 02 inside the bottom-side frame part 012, affecting the product performance of the infrared touch display screen.

[0052] To solve the above technical problems, the present utility model provides an optical touch frame, as Figure 4 、 Figure 5, Figure 6 and Figure 7 as shown, wherein, Figure 4 is a schematic structural view of an optical touch frame provided in an embodiment of the present invention, Figure 5 is Figure 4 an enlarged view of area B in Figure 6 is a schematic structural view of a splicing part of a frame part provided in an embodiment of the present invention, Figure 7 is an exploded view of a splicing part of a frame part provided in an embodiment of the present invention; specifically, the optical touch frame provided in the embodiment of the present invention may include:

[0053] A first frame part 11, the first frame part 11 extends along a first direction, the first frame part 11 has a first circuit board cavity E, an end face of the first frame part 11 has a first port communicating with the first circuit board cavity E, and a wiring port 101 is provided in a region of a side wall of the first circuit board cavity E adjacent to the first port;

[0054] A first touch circuit board 21, the first touch circuit board 21 is located in the first circuit board cavity E;

[0055] A waterproof plug 5, the waterproof plug 5 is arranged at the first port to seal the first port;

[0056] A first connecting wire 41, the first connecting wire 41 is connected to an end of the first touch circuit board 21, and the first connecting wire 41 extends out of the first frame part 11 from the wiring port 101.

[0057] In the optical touch frame provided by the above-mentioned utility model embodiment, it includes a first frame part 11. The first frame part 11 has a first circuit board cavity E. The end face of the first frame part 11 has a first port communicating with the first circuit board cavity E. The first port of the first circuit board cavity E can be sealed by a waterproof plug 5. The first frame part 11 can be spliced with an adjacent frame part through a connecting corner. There is a splicing gap between the end face of the first frame part 11 and the splicing surface of the connecting corner. Since the waterproof plug 5 plays a good water-blocking role, it ensures the integrity and tightness of the end face of the first frame part 11, and can prevent water droplets entering from the splicing gap from entering the first circuit board cavity E through the first port of the first frame part 11, thereby being able to avoid the influence of moisture on the first touch circuit board 21 in the first circuit board cavity E and improving the reliability of the product. And in the area of the side wall of the first circuit board cavity E of the first frame part 11 near the first port, there is a wiring port 101. The opening direction of the wiring port 101 is different from the opening direction of the first port. The first connecting wire 41 connected to the first touch circuit board 21 in the first circuit board cavity E can bypass out from the wiring port 101 on the side wall of the first circuit board cavity E instead of passing out from the first port, so as to be connected to the touch circuit board in the adjacent frame part to ensure the circuit performance of the optical touch frame. Moreover, the structure of this optical touch frame is simple, convenient for assembly and maintenance, and has a high cost performance.

[0058] Specifically, the wiring port 101 can be arranged on any side wall of the first circuit board cavity E, which is not limited here and is determined according to the actual situation, as long as it can meet the requirement that the first connecting wire 41 passes out through the wiring port 101 and does not pass out from the first port of the first frame part 11, without damaging the integrity of the end face of the first frame part 11. For example, as Figure 6 shown, the wiring port 101 can be arranged on the side wall of the first circuit board cavity E arranged along the first direction, and the first direction is the thickness direction of the optical touch frame.

[0059] It should be noted that the shape of the wiring port 101 can also be not limited here and is determined according to the actual situation.

[0060] Specifically, in this embodiment, the optical touch frame can be applied to display devices such as infrared touch screens, conference machines, interactive flat panels, and electronic whiteboards.

[0061] Such as Figures 4 to 6As shown in the figure, in this embodiment, the optical touch frame may include four frame parts 1, four touch circuit boards 2, four connecting corners 3, and three connecting lines 4. The four frame parts 1 are spliced into a rectangular frame with head and tail connected through the four connecting corners 3. Each frame part 1 has a circuit board cavity. The end face of each frame part 1 has a port communicating with the circuit board cavity. There is a splicing gap between the end face of each frame part 1 and the end face of the connecting corner 3. The four touch circuit boards 2 are correspondingly arranged in the circuit board cavities of the four frame parts 1. The four touch circuit boards 2 are sequentially connected through the three connecting lines 4 to ensure circuit connection. In the four frame parts 1, the first frame part 11 is opposite to the second frame part 12, and the third frame part 13 is opposite to the fourth frame part 14.

[0062] It should be noted that the number of the frame parts 1 in the optical touch frame may not be limited here and is determined according to the actual situation. Among them, the first frame part 11 may be the bottom-side frame part, and the bottom-side frame part specifically refers to the frame part located at the bottom of the display device in the normal use state of the display device; the second frame part 12 may be the top-side frame part, and the top-side frame part specifically refers to the frame part located at the top of the display device in the normal use state of the display device; the first connecting line 41 is the connecting line connected to the touch circuit board arranged in the bottom-side frame part.

[0063] Among them, the first port on the end face of the first frame part 11 is sealed by a waterproof plug 5, which can play a good waterproof role and prevent the moisture entering the inside of the optical touch frame from the splicing gap from entering the first circuit board cavity E through the first port, thereby avoiding corroding the first touch circuit board 21. Specifically, the first frame part 11 may have a first port only at one end or at both ends, which is not limited here and is determined according to the actual situation. The first connecting line 41 connected to the end of the first touch circuit board 21 in the first frame part 11 can be wound out from the wiring port 101 on the side wall of the first circuit board cavity E to be connected to the touch circuit board 2 in the adjacent third frame part 13 or fourth frame part 14, so as to meet the circuit connection requirement. The connecting lines 4 connected to the ends of the touch circuit boards 2 in the second frame part 12, the third frame part 13, and the fourth frame part 14 can be led out from the ports on the end faces of the frame parts 1.

[0064] Specifically, the above-mentioned connecting line 4 may be an FFC flexible cable, and a wiring port may be arranged at the end of the touch circuit board 2, and the connecting line 4 may be connected to the wiring port.

[0065] Specifically, as Figure 5As shown, the connecting corner 3 may include an inner corner 31 and an outer corner 32. Both ends of the inner corner 31 may be fixedly connected to two adjacent frames 1 by screws to achieve the locking connection of the frame body. The outer corner 32 may be disposed outside the inner corner 31. The outer corner 32 may be fixedly connected to the inner corner 31. The splicing surfaces at both ends of the outer corner 32 are spliced with the end faces of the adjacent frame parts 1. There is a splicing gap between the splicing surface of the outer corner 32 and the end face of the adjacent frame part 1. The outer corner 32 can play a role in the transition of the appearance of the optical touch frame, improving the aesthetics. Among them, the connecting line 4 may be arranged along the first direction with the inner corner 31 and routed inside the outer corner 32. The first direction is the thickness direction of the optical touch frame.

[0066] Among them, considering the material tolerance and actual assembly tolerance in the optical touch frame, the splicing gap between the outer corner 32 and the adjacent frame part 1 may be 0.2 mm to 0.5 mm, and the splicing gap cannot be completely blocked.

[0067] Specifically, as Figure 4 shown, among the four frames 1 of the optical touch frame, the touch circuit board 2 in the second frame part 12 may have an infrared emission unit for providing infrared rays to the first frame part 11; and the first touch circuit board 21 in the first frame part 11 may have an infrared receiving unit for receiving infrared rays; the touch circuit board 2 in the fourth frame part 14 may have an infrared emission unit for providing infrared rays to the third frame part 13, and the touch circuit board 2 in the third frame part 13 may have an infrared receiving unit for receiving infrared rays; among them, the infrared emission unit may include a plurality of infrared emitters arranged along the extending direction of the frame part 1, and the infrared receiving unit may include a plurality of infrared receivers corresponding to the plurality of infrared emitters. The above optical touch frame can realize the function of touch recognition through the relative infrared emission unit and infrared receiving unit.

[0068] In the embodiment of the present utility model, as Figure 6 and 7 shown, the first frame part 11 may further include a functional cavity F; the end face of the first frame part 11 may have a second port communicating with the functional cavity F; the wiring port 101 communicates the first circuit board cavity E with the functional cavity F; the first connecting line 41 extends out of the first frame part 11 through the wiring port 101 and the second port. The functional cavity F can leave a wire management space for the first connecting line 41 and can guide the wiring direction of the first connecting line 41, facilitating the routing of the first connecting line 41.

[0069] Among them, components such as functional buttons may also be arranged in the functional cavity F, which are not shown here and are determined according to the actual situation.

[0070] Specifically, as Figure 6 and 7As shown, the above-mentioned first frame portion 11 can be of an integral structure.

[0071] As Figure 6 shown, the above-mentioned optical touch frame may further include a light filter strip 6. The light filter strip 6 can seal the side surface of the first frame portion 11, improve the waterproof performance of the optical touch frame, and can filter the light received by the infrared receiving unit on the first touch circuit board 21 in the first frame portion 11, and can optimize the touch recognition effect.

[0072] In the related art, as Figure 8 and Figure 9 shown, Figure 8 and Figure 9 are schematic structural diagrams of a structure at the joint of the frame. The light filter strip can be set as a tubular light filter strip 05. The touch circuit board can be arranged in the tubular light filter strip 05. The connection line 03 connected to the touch circuit board can lead out through the end of the tubular light filter strip 05. The tubular light filter strip 05 can play a role in filtering light and can also optimize the sealing effect on the touch electronic control board, but the end face of the tubular light filter strip 05 cannot be completely sealed. In addition, as Figure 9 shown, a waterproof structure 06 can be plugged at the end face of the tubular light filter strip 05, but because the connection line 03 needs to be avoided, water droplets entering the optical touch frame from the splicing gap may still enter from the end face of the tubular light filter strip 05, damaging the touch circuit board and affecting the product performance of the display device.

[0073] To solve the above technical problems, in the embodiment of the present utility model, the first frame portion 11 may include a frame body 111 and a light filter strip 112; the frame body 111 includes a functional cavity F, and the end face of the frame body 111 has a second port; the light filter strip 112 has a first circuit board cavity E, and the end face of the light filter strip 112 has a first port, as Figure 10 and Figure 11 shown, Figure 10 is a schematic structural diagram of a structure at the joint of the frame provided in the embodiment of the present utility model, Figure 11 is an exploded view of a structure at the joint of the frame provided in the embodiment of the present utility model.

[0074] In the above-mentioned embodiment of the utility model, the light filter strip 112 on the first frame portion 11 is set as tubular, the first touch circuit board 21 is arranged inside the tubular light filter strip 112, the waterproof plug 5 seals the first port on the light filter strip 112, and the wiring port 101 is arranged on the side wall of the light filter strip 112, which can better seal the first touch circuit board 21, prevent external water droplets from entering the first circuit board cavity E, and further prevent the water droplets from corroding the first touch circuit board 21, ensuring the performance of the display device.

[0075] The functional cavity F on the frame body 111 can reserve a cable management space for the first connection line 41, and can guide the wiring direction of the first connection line 41, facilitating the routing of the first connection line 41.

[0076] In the embodiment of the present utility model, as Figure 6 , Figure 7 , Figure 10 and Figure 11 shown, the optical touch frame may further include a second frame part 12 disposed opposite to the first frame part 11. The wiring port 101 may be located on a side of the first circuit board cavity E away from the second frame part 12, and the functional cavity F may be located on a side of the first circuit board cavity E away from the second frame part 12. The functional cavity F communicates with the first circuit cavity E through the connection port 101. In this structure, when the infrared touch display screen is in normal use, water droplets entering the optical touch frame through the splicing gap will not enter the first circuit board cavity E of the first frame part 11 through the wiring port 101 under the action of gravity, and can avoid corroding the first touch circuit board 21 in the first circuit board cavity E.

[0077] In the related art, as Figure 3 shown, water droplets entering through the splicing gap may also fall on the connection line 03 and seep into the touch circuit board 2 along the connection line 03, thereby damaging the touch circuit board 2.

[0078] In the embodiment of the present utility model, in order to prevent water droplets from possibly seeping along the first connection line 41 into the first touch circuit board 21 in the first frame part 11, in the functional cavity F, the first connection line 41 can be routed close to the first side wall of the functional cavity F. The first side wall is the side wall of the functional cavity F away from the first circuit board cavity E, as Figures 10 to 12 shown. Figure 12 is a schematic diagram of a splicing structure of a frame part provided in the embodiment of the present utility model. Figure 12 The dotted line in

[0079] shows the routing path of the first connection line 41. This wiring method can lengthen the cable management path of the first connection line 41. When the display device is in normal use, due to the action of gravity, the first connection line 41 can naturally droop and the bending area is increased, spreading as much as possible towards the ground side, and under the action of gravity, moisture cannot seep upwards onto the first touch circuit board 21, thereby being able to avoid corrosion of the first touch circuit board 21.

[0080] Specifically, the gap between the waterproof plug 5 and the first port can be designed to be between 0 mm and -0.3 mm, so that the waterproof plug 5 and the first port are in interference fit, and can play a good water blocking role.

[0081] In the embodiment of the present utility model, the material of the waterproof plug 5 is a compressible elastic material, which can ensure that the waterproof plug 5 is inserted into the first port.

[0082] Specifically, the material of the waterproof plug 5 can be foam, silica gel or plastic, and the material is simple and easy to manufacture. Optionally, the material of the waterproof plug 5 can also be other materials, which are not limited here and are determined according to the actual situation.

[0083] In the embodiment of the present utility model, the waterproof plug 5 can have a handle 51, and the handle 51 is exposed outside the first frame portion 11, as Figure 13 shown. Figure 13 FIG. is a schematic structural diagram of a waterproof plug provided in the embodiment of the present utility model. Through the handle 51 on the waterproof plug 5, it is convenient to pick up and assemble the waterproof plug on the production line, facilitating the operation.

[0084] In the embodiment of the present utility model, as Figure 13 shown, the waterproof plug 5 can also have a first guiding portion 52, and the first port of the first frame portion 11 can have a second guiding portion. The first guiding portion 52 cooperates with the second guiding portion to enable the waterproof plug 5 to be inserted into the first port. The cooperation and guiding of the first guiding portion 52 on the waterproof plug 5 and the second guiding portion at the first port can facilitate the insertion of the waterproof plug 5 into the first port along the extending direction of the first frame portion 11, facilitating the assembly operation on the production line, as Figure 14 shown. Figure 14 FIG. is a schematic assembly structure diagram of a waterproof plug and a first frame portion provided in the embodiment of the present utility model.

[0085] Specifically, the first guiding portion 52 can be a guiding strip, and the second guiding portion can be a guiding groove extending along the extending direction of the first frame portion 11. The guiding strip can be inserted into the guiding groove and is slidably matched with the guiding groove along the extending direction of the first frame portion 11. During the assembly process of the waterproof plug 5, by inserting the guiding strip into the guiding groove, the guiding strip and the guiding groove are slidably matched along the extending direction of the first frame portion 11, facilitating the assembly operation of the waterproof plug 5.

[0086] Optionally, the specific shape of the first frame portion 11 is not limited here and is determined according to the actual situation. The shape of the end face of the waterproof plug 5 can be matched with the shape of the first port, which is also not limited here and is determined according to the actual situation.

[0087] In the embodiment of the present utility model, the specific structure of the optical touch frame can be as Figure 4 shown. The assembly process of this optical touch frame can be as follows:

[0088] First, place the touch circuit board 2 in the circuit board cavity of the corresponding frame 1; then, assemble the four frames 1 together through the four inner corners 31;

[0089] Then, insert three connecting lines 4 into the touch control circuit boards 2 within the four frame edges 1, such that the four touch control circuit boards 2 are connected in sequence. Among them, the first connecting line 41 connected to the first touch control circuit board 21 within the first frame edge portion 11 exits from the wiring port 101 on the first frame edge portion 11; as Figure 15 shown, Figure 15 is an assembly schematic diagram of a first connecting line 41 provided by an embodiment of the present utility model, Figure 15 wherein the first connecting line 41 is connected to the connection port of the first touch control circuit board 21, and exits through the wiring port 101 on the first frame edge portion 11 to be connected to the connection port on the first touch control circuit board 21;

[0090] Then, seal the first port of the first frame edge portion 11 with a waterproof plug 5;

[0091] Finally, assemble the four outer corners 32, and respectively assemble the four outer corners 32 to the outside of the four inner corners 31 to optimize the appearance of the optical touch control frame edge.

[0092] The present utility model further provides a display device, including any one of the optical touch control frame edges provided in the above technical solution.

[0093] In the display device provided by the embodiment of the present utility model, the optical touch control frame edge includes a first frame edge portion. The first frame edge portion has a first circuit board cavity. The end face of the first frame edge portion has a first port communicating with the first circuit board cavity. The first port of the first circuit board cavity can be sealed by a waterproof plug. The first frame edge portion can be spliced with an adjacent frame edge portion through a connecting corner. There is a splicing gap between the end face of the first frame edge portion and the splicing face of the connecting corner. Since the waterproof plug plays a good role in blocking water, it ensures the integrity and sealing performance of the end face of the first frame edge portion, and can avoid water droplets entering from the splicing gap from entering the first circuit board cavity through the first port of the first frame edge portion. Furthermore, it can avoid the influence of moisture on the first touch control circuit board within the first circuit board cavity, improving the reliability of the product; and a wiring port is provided in the region of the side wall of the first circuit board cavity of the first frame edge portion adjacent to the first port. The opening direction of the wiring port is different from the opening direction of the first port. The first connecting line connected to the first touch control circuit board within the first circuit board cavity can exit not from the first port, but from the wiring port on the side wall of the first circuit board cavity to be connected to the touch control circuit board in the adjacent frame edge portion to ensure the circuit performance of the optical touch control frame edge. And, the structure of this optical touch control frame edge is simple, convenient for assembly and maintenance, and has high cost performance.

[0094] The above display device can be an infrared touch screen, a conference machine, an interactive flat panel, an electronic whiteboard, etc.

[0095] Specifically, the above display device can be an infrared touch screen, and the infrared touch screen further includes a display module and a main control circuit board. The above optical touch frame can be wrapped around the periphery of the display module. Among them, the display module can be a liquid crystal display module or an organic electroluminescent display module. The main control circuit board is signal-connected to the touch circuit board 2 in the optical touch frame, and the main control circuit board is signal-connected to the display module. The main control circuit board can control the display of the display module according to the signals transmitted or received by the touch circuit board 2.

[0096] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An optical touch frame, characterized in that, Comprising: A first frame portion, the first frame portion extending in a first direction, the first frame portion having a first circuit board cavity, an end face of the first frame portion having a first port communicating with the first circuit board cavity, a side wall of the first circuit board cavity having a wiring port, an opening direction of the wiring port being different from an opening direction of the first port; A first touch circuit board, the first touch circuit board being located within the first circuit board cavity; A waterproof plug, the waterproof plug being disposed at the first port to seal the first port; A first connecting wire, the first connecting wire being connected to an end of the first touch circuit board, and the first connecting wire extending out of the first frame portion from the wiring port.

2. The optical touch frame according to claim 1, wherein The first frame portion further includes a function cavity; The end face of the first frame portion has a second port communicating with the function cavity; The wiring port communicates the first circuit board cavity with the function cavity; The first connecting wire extends out of the first frame portion through the wiring port and the second port.

3. The optical touch frame according to claim 2, wherein The first frame portion includes a frame body and a light filtering strip; The frame body includes the function cavity, and the end face of the frame body has the second port; The light filtering strip has the first circuit board cavity, and the end face of the light filtering strip has the first port.

4. The optical touch frame according to claim 2 or 3, characterized in that, Further included is a second frame portion disposed opposite to the first frame portion; The wiring port is located on a side of the first circuit board cavity facing away from the second frame portion, and the function cavity is located on a side of the first circuit board cavity facing away from the second frame portion.

5. The optical touch frame according to claim 4, characterized in that, Within the function cavity, the first connecting wire can run close to a first side wall of the function cavity, the first side wall being a side wall of the function cavity away from the first circuit board cavity.

6. The optical touch frame according to claim 1, wherein The waterproof plug is in interference fit with the first port.

7. The optical touch frame according to claim 6, wherein The material of the waterproof plug is a compressible elastic material.

8. The optical touch frame according to claim 7, wherein, The material of the waterproof plug is foam, silicone or plastic.

9. The optical touch frame according to any one of claims 6 to 8, characterized in that, The waterproof plug has a handle, and the handle is exposed outside the first frame portion.

10. The optical touch frame according to any one of claims 6 to 8, characterized in that, The waterproof plug has a first guiding portion, and the first port has a second guiding portion, the first guiding portion cooperating with the second guiding portion to enable the waterproof plug to be inserted at the first port.

11. The optical touch frame according to claim 10, wherein The first guiding portion is a guiding strip, and the second guiding portion is a guiding groove extending along an extending direction of the first frame portion, the guiding strip being insertable into the guiding groove and slidably cooperating with the guiding groove along the extending direction of the first frame portion.

12. A display device, characterized in that, Including the optical touch frame according to any one of claims 1 - 11.

Images