CN117631882A - Infrared touch screen - Google Patents
Infrared touch screen Download PDFInfo
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- CN117631882A CN117631882A CN202410111592.8A CN202410111592A CN117631882A CN 117631882 A CN117631882 A CN 117631882A CN 202410111592 A CN202410111592 A CN 202410111592A CN 117631882 A CN117631882 A CN 117631882A
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Abstract
The invention relates to an infrared touch screen. The infrared touch screen comprises a display screen, at least two transmitting lamp units and at least two receiving lamp units; at least two sides of the display screen are provided with circuit boards, at least two transmitting lamp units are respectively arranged on the circuit boards of at least two sides of the display screen, and at least two receiving lamp units are respectively arranged on the circuit boards of at least two sides of the display screen and used for receiving light rays emitted by the transmitting lamp units; the transmitting lamp unit or/and the receiving lamp unit comprise at least two infrared lamp tubes which are arranged in a gathering way, wherein at least one infrared lamp tube is obliquely arranged towards the other infrared lamp tube and used for increasing the working angle of the transmitting lamp unit or/and the receiving lamp unit. The invention can solve the problems of the prior art that the arrangement of the lamp tubes on at least two sides of the infrared touch screen is dense, but the formed optical network has more holes, so that the touch control and writing effects of the infrared touch screen are not good enough.
Description
Technical Field
The invention relates to the technical field of touch screens, in particular to an infrared touch screen.
Background
The infrared touch frame (i.e. the infrared touch screen) is formed by mutually receiving and transmitting optical signals (light rays) through infrared receiving lamp tubes and infrared transmitting lamp tubes which are distributed around the display screen, an optical network is formed by interleaving the optical signals (light rays), coordinate points are formed when a non-light-transmitting object blocks the light rays in the optical network, and finally touch coordinates are output through calculation and analysis of a processor, so that the functions of clicking, touching, drawing lines and the like can be realized on the infrared touch frame. Moreover, the density and uniformity of the optical network in the infrared touch frame determine the touch fineness of the infrared touch frame and the quality of the writing and drawing effects. In the prior art, although the arrangement of the lamps (the receiving lamps and the transmitting lamps) around the display screen is very dense, the formed optical network has more holes, so that the touch control and writing effects of the infrared touch screen are not good enough.
Disclosure of Invention
The invention provides an infrared touch screen, which can solve the technical problems that the touch and writing effects of the infrared touch screen are not good enough due to the fact that a formed optical network is provided with a plurality of holes even though the arrangement of lamp tubes (receiving lamp tubes and transmitting lamp tubes) on at least two sides of the display screen is very dense in the prior art.
In order to solve the above technical problems, the present invention provides an infrared touch screen, including:
the display screen, at least two sides of the said display screen have circuit boards;
the at least two emitting lamp units are respectively arranged on the circuit boards at least two sides of the display screen and are used for emitting light rays to form an optical network in the display screen; the method comprises the steps of,
the at least two receiving lamp units are respectively arranged on the circuit boards at the at least two sides of the display screen and are used for receiving the light rays emitted by the emitting lamp units;
the LED lamp comprises a lamp body, a lamp receiving unit, a lamp emitting unit and a lamp receiving unit, wherein the lamp emitting unit or/and the lamp receiving unit comprises at least two infrared lamp tubes which are arranged in a gathering mode, at least one infrared lamp tube is obliquely arranged towards the other infrared lamp tube, and the lamp receiving unit is used for increasing the working angle of the lamp emitting unit or/and the lamp receiving unit.
Optionally, the infrared lamp tube includes:
the lamp tube substrate is provided with a wafer mounting surface and a lamp tube mounting surface, and the lamp tube mounting surface is attached to the surface of the circuit board;
the lamp tube wafer is arranged on the wafer mounting surface of the lamp tube substrate; the method comprises the steps of,
the lamp tube lens is arranged on the wafer mounting surface of the lamp tube substrate and covers the outside of the lamp tube wafer;
in the transmitting lamp unit or/and the receiving lamp unit, a substrate vertical line of the wafer mounting surface of the lamp tube substrate of one infrared lamp tube is inclined and close to a substrate vertical line of the wafer mounting surface of the lamp tube substrate of the other infrared lamp tube.
Optionally, the sending light unit and/or the receiving light unit each include two infrared light tubes that gather together and set up, one of which infrared light tube sets up to another infrared light tube slope.
Optionally, one of the infrared light tubes is obliquely arranged, the other infrared light tube is conventionally arranged, and the obliquely arranged infrared light tube is obliquely close to the conventionally arranged infrared light tube.
Optionally, the two infrared lamps are both obliquely arranged, and substrate vertical lines of the wafer mounting surfaces of the lamp tube substrates of the two infrared lamps are obliquely arranged relative to each other.
Optionally, the lamp tube substrates of at least two of the infrared lamp tubes of the transmitting lamp unit and/or the receiving lamp unit are integrated or are arranged independently of each other.
Optionally, the tube substrate of the infrared tube is being attached to the circuit board on the periphery of the display screen.
Optionally, the lamp tube substrate side of the infrared lamp tube is attached to the circuit board on the periphery of the display screen.
Optionally, at least two sides of the display screen have at least one transmitting side and at least one receiving side that are oppositely arranged, at least two transmitting lamp units are arranged on the transmitting side, and at least two receiving lamp units are arranged on the receiving side.
Optionally, the transmitting side and the receiving side are disposed opposite to each other or disposed obliquely correspondingly.
Optionally, at least two of the emitting lamp units and at least two of the receiving lamp units are alternately arranged on at least two sides of the display screen.
Optionally, the sending light unit and/or the receiving light unit each include at least two infrared light tubes that gather together and set up, and are used for working under the drive of same drive signal.
The technical scheme provided by the invention has the beneficial effects that:
through the at least two sending lamp units that the at least both sides limit set up of the display screen of infrared touch-sensitive screen, can be to the at least two receiving lamp units transmission light signal (namely light) that the at least both sides limit set up of display screen, can form the light net in the display screen, and at least two receiving lamp units can receive the light that sends out of sending lamp unit, can utilize the formation light net discernment in the display screen to shelter from the shielding object of light net to through discernment shielding object's coordinate, can realize functions such as click, touch and drawing on the display screen of infrared touch-sensitive screen.
Moreover, by making the emission lamp unit include at least two infrared lamp tubes that gather together the setting to making at least one infrared lamp tube in at least two infrared lamp tubes of emission lamp unit set up to another infrared lamp tube slope, can increase the operational angle (light angle) that emission lamp unit sent the light signal, can strengthen the light intensity of the light signal that emission lamp unit sent. Therefore, the working angle of the light emitting lamp unit can be increased to improve the density of the optical network, meanwhile, the light intensity of the optical network can be improved, the actual application effect is not affected, and the touch control and writing performance of the infrared touch screen can be improved.
In addition, by making the receiving lamp unit include at least two infrared lamp tubes that are disposed together and making at least one of the at least two infrared lamp tubes of the receiving lamp unit be disposed obliquely to the other infrared lamp tube, the working angle (light receiving angle) of the receiving light signal of the receiving lamp unit can be increased, and the ability of the receiving lamp unit to receive the light signal can be enhanced. Therefore, the working angle of the receiving lamp unit can be increased to improve the capability of the receiving lamp unit for receiving the optical signals, and the touch control and writing performance of the infrared touch screen can be improved under the condition that the density and the light intensity of the optical network are not changed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an infrared touch screen according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an infrared touch screen according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a light emitting unit of an infrared touch screen according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a second structure of a light emitting unit of the infrared touch screen according to the embodiment of the invention;
fig. 5 is a schematic diagram of a light emitting unit of an infrared touch screen according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of an infrared touch screen according to an embodiment of the present invention when an emission tube is being mounted;
fig. 7 is a schematic perspective view of an infrared touch screen according to an embodiment of the invention when the side-mounting of the transmitting lamp tube is performed.
In the figure: 10. an infrared touch screen; 100. a display screen; 110. a circuit board; 200. a transmitting lamp unit; 202. a transmitting lamp tube; 210. a first lamp tube substrate; 212. a first wafer mounting surface; 214. a first lamp tube mounting surface; 220. a first lamp wafer; 230. a first tube lens; 300. receiving a lamp unit; 302. receiving the lamp tube.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 2, the present invention provides an infrared touch screen 10 including a display screen 100, at least two transmitting lamp units 200, and at least two receiving lamp units 300; in addition, at least two sides of the display screen 100 are provided with the circuit board 110, at least two transmitting lamp units 200 may be respectively disposed on the circuit boards 110 on at least two sides of the display screen 100, and at least two receiving lamp units 300 may be respectively disposed on the circuit boards 110 on at least two sides of the display screen 100 for receiving light emitted by the transmitting lamp units 200.
As shown in fig. 1, through at least two transmitting lamp units 200 disposed on the left side and the ground side of the circuit board 110 of the display screen 100 of the infrared touch screen 10, light signals (i.e., light rays) can be emitted to at least two receiving lamp units 300 disposed on the right side and the ground side of the circuit board 110 of the display screen 100, i.e., a light net can be formed in the display screen 100, and the at least two receiving lamp units 300 can receive the light rays emitted by the transmitting lamp units 200, and can utilize the light net formed in the display screen 100 to identify a shielding object shielding the light net, and by identifying coordinates of the shielding object, the functions of clicking, touching, drawing lines and the like can be realized on the display screen 100 of the infrared touch screen 10.
As shown in fig. 2, a transmitting lamp unit 200 and a receiving lamp unit 300 may be disposed on the circuit board 110 on four sides of the display screen 100 of the external touch screen 10. On the circuit board 110 of the single side, the transmitting lamp unit 200 and the receiving lamp unit 300 are simultaneously provided, so that the arrangement of the light is denser and more free.
In addition, as shown in fig. 3 to 5, the emission lamp unit 200 may include at least two emission lamps 202 (i.e., infrared lamps) that are disposed together, where the at least two emission lamps 202 together operate as an infrared emission lamp, that is, are driven by the same driving signal, and perform optical signal emission at the same time, so that an effective operating angle of an infrared emission lamp that is formed by the at least two emission lamps 202 together is increased, that is, the effective operating angle of the emission lamp unit 200 is effectively improved, and the performance and design flexibility of the application of the infrared touch screen are improved. In the emission lamp unit 200, at least one emission lamp 202 is inclined toward another emission lamp 202 to increase the effective operating angle (i.e., the effective light-emitting angle) of the emission lamp unit 200.
By making the light emitting lamp unit 200 include at least two light emitting lamps 202 (i.e., infrared lamps) that are disposed together, and making at least one light emitting lamp 202 of the at least two light emitting lamps 202 of the light emitting lamp unit 200 disposed obliquely to another light emitting lamp 202, compared with a single light emitting lamp 202 in the conventional technology, the working angle (i.e., light emitting angle) of the light signal of the obliquely disposed light emitting lamp 202 in the light emitting lamp unit 200 and the effective light emitting angles of the light signals of the other light emitting lamps 202 can be superimposed and expanded, so that the effective light emitting angle of the light signal emitted by the light emitting lamp unit 200 can be increased; moreover, the intensity of the light signal of the obliquely arranged light emitting tube 202 in the light emitting lamp unit 200 and the intensity of the light signal of the other light emitting tube 202 may be superimposed, so that the light intensity of the light signal emitted from the light emitting lamp unit 200 may be enhanced. In this way, the effective light emitting angle of the light emitting lamp unit 200 can be increased to improve the intensity of the optical network, and meanwhile, the light intensity of the optical network can be improved, the actual application effect is not affected, and the touch control and writing performance of the infrared touch screen 10 can be improved.
Further, each of the emission lamps 202 (i.e., infrared lamps) of the emission lamp unit 200 may include a first lamp substrate 210, the first lamp substrate 210 having a first wafer mounting surface 212 and a first lamp mounting surface 214, and the emission lamps 202 may be attached to the surface of the circuit board 110 through the first lamp mounting surface 214; furthermore, the emitter lamp 202 may further include a first lamp wafer 220 disposed on the first wafer mounting surface 212 of the first lamp substrate 210, and a first lamp lens 230 disposed on the first wafer mounting surface 212 of the first lamp substrate 210 and covering the first lamp wafer 220. The first lamp substrate 210 of the emitting lamp 202 is used to mount the emitting lamp 202 on the circuit board 110 on at least two sides of the display 100, and the first lamp wafer 220 on the first lamp substrate 210 is used to emit light signals (light rays) and the first lamp lens 230 is used to emit the light signals (light rays) outwards.
In the light emitting lamp unit 200, the substrate perpendicular line of the first wafer mounting surface 212 of the first lamp substrate 210 of one light emitting lamp 202 (i.e., infrared lamp) is inclined toward the substrate perpendicular line of the first wafer mounting surface 212 of the first lamp substrate 210 of the other light emitting lamp 202. In this way, the emission lamps 202 of the emission lamp unit 200 are inclined towards other emission lamps 202, so that the first lamp wafer 220 and the first lamp lens 230 of one emission lamp 202 are inclined towards the positions of the first lamp wafer 220 and the first lamp lens 230 of the other emission lamp 202. In the light emitting lamp unit 200, when the obliquely arranged light emitting lamp 202 emits light signals (light rays) simultaneously with other light emitting lamps 202 arranged in a gathered manner, the light emitting angles of the light signals of at least two light emitting lamps 202 can be overlapped and expanded, so that the effective light emitting angle of the light emitting lamp unit 200 is increased.
Further, as shown in fig. 3 to 5, the emission lamp unit 200 may include two emission lamps 202 disposed in a gathered manner, wherein one of the emission lamps 202 is disposed in a tilted manner toward the other emission lamp 202. That is, the light emitting unit 200 may be composed of two light emitting tubes 202, and at least one light emitting tube 202 is obliquely disposed on the surface of the circuit board 110, so that one light emitting tube 202 is in a state of being inclined to the other light emitting tube 202, so that the effective light emitting angle of the light emitting unit 200 is larger than that of a single light emitting tube 202, and the light intensity of the light emitting unit 200 is also larger than that of a single light emitting tube 202.
Moreover, in one embodiment, as shown in fig. 3, two emission lamps 202 of the emission lamp unit 200, one of the emission lamps 202 may be disposed obliquely, and the other emission lamp 202 may be disposed conventionally (referring to the conventional manner of disposing, for the conventionally disposed emission lamps 202, the first wafer mounting surface 212 of the first lamp substrate 210 is parallel to the surface of the circuit board 110, so that the first lamp wafer 220 (and the first lamp lens 230) disposed on the first wafer mounting surface 212 of the first lamp substrate 210 of the emission lamp 202 is perpendicular to the surface of the circuit board 110).
Moreover, the inclined emission lamp 202 is inclined towards the conventionally arranged emission lamp 202, so that the substrate vertical line of the first wafer mounting surface 212 of the first lamp substrate 210 of the inclined emission lamp 202 is inclined towards the direction of the substrate vertical line of the conventionally arranged emission lamp 202, so that the first lamp wafer 220 (and the first lamp lens 230) of the inclined emission lamp 202 is inclined towards the first lamp wafer 220 (and the first lamp lens 230) of the conventionally arranged emission lamp 202, and the light-emitting angle of the emission lamp unit 200 formed by the two emission lamps 202 is larger than the effective light-emitting angle of one conventional emission lamp 202.
Specifically, by combining one obliquely arranged light emitting tube 202 and one conventionally arranged light emitting tube 202 to form the light emitting lamp unit 200, the effective light emitting angles of the two light emitting tubes 202 can be correspondingly combined, and assuming that the half light emitting angle (i.e., half the light emitting angle) that can be used by the obliquely arranged light emitting tube 202 is α1 and the oblique angle of the obliquely arranged light emitting tube 202 is β1, and the half light emitting angle that can be used by the conventionally arranged light emitting tube 202 (i.e., the conventional light emitting tube 202 is not oblique) is α2, the effective light emitting angle that can be used by the combined light emitting lamp unit 200 is θ, and the relationship between the angles is θ=α1+β1+α2, thus greatly expanding the available effective light emitting angle of the light emitting lamp unit 200.
In addition, in another embodiment, as shown in fig. 4 to 5, both the emission lamps 202 of the emission lamp unit 200 may be disposed obliquely, and the substrate perpendicular lines of the first wafer mounting surfaces 212 of the first lamp substrates 210 of the two emission lamps 202 are disposed close to each other obliquely. By arranging the first tube substrates 210 of the two emission tubes 202 in the emission tube unit 200 obliquely with respect to the surface of the circuit board 110, and arranging the two emission tubes 202 obliquely with respect to each other, the effective light-emitting angle of the two emission tubes 202 can be further made larger than that of one conventional emission tube 202.
Specifically, by enabling the light emitting lamp unit 200 to combine two inclined light emitting lamps 202, the effective light emitting angles of the two may be correspondingly combined, and assuming that the half light emitting angle (i.e., half of the effective light emitting angle) that one inclined light emitting lamp 202 may use is α1 and the inclination angle thereof is β1, and the half light emitting angle that the other inclined light emitting lamp 202 may use is α2 and the inclination angle thereof is β2, the effective light emitting angle that the combined light emitting lamp unit 200 may use is θ, and the relationship between the angles is θ=α1+β1+α2+β2, so that the available effective light emitting angle of the light emitting lamps is greatly enlarged.
In addition, in the emission lamp unit 200, the first lamp substrates 210 of the at least two emission lamps 202 gathered together may be provided as a unit or independently from each other. As shown in fig. 5, at least two emission lamps 202 in the emission lamp unit 200 can be connected together through the first lamp substrate 210 and can be simultaneously installed on the surface of the circuit board 110; as shown in fig. 4, at least two of the light emitting tubes 202 in the light emitting tube unit 200 may be disposed independently of each other, and may be disposed independently of each other on the surface of the circuit board 110.
Furthermore, in some embodiments, as shown in fig. 6, the first tube substrate 210 of the emission tube 202 may be being attached to the circuit board 110 on the peripheral side of the display screen 100. The first tube substrate 210 of the emitter tube 202 is generally configured in a plate-like structure, and generally has a front side and a back side with a relatively large area, and the front side and the back side of the first tube substrate 210 are disposed opposite to each other. When the first lamp substrate 210 of the emission lamp 202 is being attached to the surface of the circuit board 110, the front surface of the first lamp substrate 210 may be formed as a first wafer mounting surface 212 for mounting the first lamp wafer 220 and the first lamp lens 230, and the back surface of the first lamp substrate 210 may be formed as a first lamp mounting surface 214 for being attached to the surface of the circuit board 110, such that the first lamp wafer 220 and the first lamp lens 230 of the emission lamp 202 are disposed opposite to the circuit board 110 and extend in a direction away from the surface of the circuit board 110. Also, the front or back surface of the first lamp substrate 210 may be inclined such that the first lamp wafer 220 and the first lamp lens 230 mounted on the front surface (i.e., the wafer mounting surface 212) are in an inclined state.
In addition, in another embodiment, as shown in fig. 7, the first tube substrate 210 of the emitting tube 202 may be attached to the circuit board 110 on the periphery of the display screen 100. The side surface of the first lamp substrate 210 of the emitting lamp 202 is attached to the surface of the circuit board 110, and the mounting direction of the first lamp substrate 210 is adjusted, so that the emitting lamp 202 is in an inclined state. Specifically, when the first lamp substrate 210 of the emission lamp 202 is configured as a plate structure, the first lamp substrate 210 may have a front surface, a side surface adjacent to the front surface, and a back surface opposite to the front surface, the front surface of the first lamp substrate 210 may be configured as a first wafer mounting surface 212 for mounting the first lamp wafer 220 and the first lamp lens 230, and the side surface of the first lamp substrate 210 may be configured as a first lamp mounting surface 214 for being attached to the surface of the circuit board 110. Moreover, by adjusting the mounting orientation of the side surface of the first lamp substrate 210 (i.e., the first lamp mounting surface 214) on the surface of the circuit board 110, the first lamp wafer 220 and the first lamp lens 230 mounted on the front surface (i.e., the first wafer mounting surface 212) can also be tilted.
Furthermore, in some embodiments, as shown in fig. 1, at least two sides of the display screen 100 may have at least one transmitting side and at least one receiving side disposed opposite to each other, at least two transmitting lamp units 200 are disposed on the transmitting side, and at least two receiving lamp units 300 are disposed on the receiving side. That is, at least two sides of the display screen 100 may be provided with a corresponding transmitting side and a corresponding receiving side, or at least two sides of the display screen 100 may be provided with a corresponding transmitting side and a corresponding receiving side, and at least two transmitting lamp units 200 may be provided at one or at least two transmitting sides, and at least two receiving lamp units 300 may be provided at one or at least two receiving sides, so that the transmitting sides may be used for emitting light, and the receiving sides may be used for receiving light.
Further, the transmitting side and the receiving side are disposed opposite to each other or disposed obliquely correspondingly. Specifically, the transmitting side and the receiving side of at least two sides of the display screen 100 may be disposed vertically and vertically, or may be disposed horizontally and vertically, or may be disposed obliquely and vertically (e.g., north-south-west, or south-west); in addition, the transmitting side and the receiving side of at least two sides of the display screen 100 may be up (or down) to the left (or right) to form a state corresponding to an inclination.
Furthermore, in other embodiments, as shown in fig. 2, at least two transmitting lamp units 200 and at least two receiving lamp units 300 are disposed at least two sides of the display screen 100 to be staggered with each other. In this embodiment, at least two sides of the display screen 100 may be set as an emitting side and a receiving side at the same time, and the emitting lamp units 200 and the receiving lamp units 300 are staggered one by one on at least two sides of the display screen 100, so that each of the at least two sides of the display screen 100 can emit light and receive light.
In addition, as shown in fig. 1-2, in an infrared touch screen, each receiving lamp unit 300 may include a receiving lamp tube 302 (also referred to as an outer red lamp tube). Moreover, the receiving lamp 302 may be a conventional receiving lamp 302, i.e. the receiving lamp 302 is configured as in the conventional technology.
In addition, in the infrared touch screen, the receiving lamp unit 300 may also include at least two receiving lamps 302 (which may also be regarded as an infrared red lamp) disposed together, where the at least two receiving lamps 302 work together as one infrared receiving lamp, that is, are driven by the same driving signal and receive the optical signal at the same time, so that the effective working angle of one infrared receiving lamp formed by the at least two receiving lamps 302 together is increased, which can effectively improve the effective working angle of the receiving lamp unit 300, and improve the application performance and design flexibility of the infrared touch screen.
In the receiving lamp unit 300, at least one receiving lamp 302 (infrared lamp) is disposed obliquely to another receiving lamp 302 for increasing the effective light receiving angle of the receiving lamp unit 300 (i.e., the effective operating angle of receiving the light signal (i.e., light) emitted from the emitting lamp unit 200). Moreover, the arrangement of the receiving lamp unit 300 may be similar to the arrangement of the transmitting lamp unit 200 described above, i.e., the arrangement of the receiving lamp 302 in the receiving lamp unit 300 may be similar to the arrangement of the transmitting lamp 202 of the transmitting lamp unit 200 described above.
By making the receiving lamp unit 300 include at least two receiving lamps 302 (infrared lamps) disposed in a gathered manner, and making at least one receiving lamp 302 of the at least two receiving lamps 302 of the receiving lamp unit 300 disposed obliquely to the other receiving lamp 302, the working angle (light receiving angle) of the receiving light signal of the receiving lamp unit can be increased, and the ability of the receiving lamp unit 300 to receive the light signal can be enhanced. In this way, the effective working angle of the receiving lamp unit 300 can be increased to improve the capability of receiving the optical signals, and the touch control and writing performance of the infrared touch screen can be improved under the condition that the density and the light intensity of the optical network are not changed.
Specifically, the receiving lamp 302 (infrared lamp) of the receiving lamp unit 300 may include a second lamp substrate having a second wafer mounting surface and a second lamp mounting surface, the second lamp mounting surface being attached to the surface of the circuit board 110; moreover, the receiving lamp 302 may further include a second lamp wafer disposed on the second wafer mounting surface of the second lamp substrate, and a second lamp lens disposed on the second wafer mounting surface of the second lamp substrate and covering the second lamp wafer. The receiving lamp 302 may be disposed on the circuit board 110 on at least two sides of the display screen 100 through the second lamp substrate of the receiving lamp 302, and the light signal (light) emitted from the light emitting lamp unit 200 may be received through the second lamp lens through the second lamp wafer on the second lamp substrate.
In the receiving lamp unit 300, the substrate perpendicular line of the second wafer mounting surface of the second lamp substrate of one receiving lamp 302 (infrared lamp) is inclined toward the substrate perpendicular line of the wafer mounting surface of the second lamp substrate of the other receiving lamp 302. Similarly, by inclining the receiving lamps 302 of the receiving lamp unit 300 toward other receiving lamps 302, the second lamp wafer and the second lamp lens of one receiving lamp 302 can be inclined toward the positions of the second lamp wafer and the second lamp lens of the other receiving lamp 302. In the receiving lamp unit 300, when the inclined receiving lamp 302 receives the light signal (light) simultaneously with the other receiving lamps 302 arranged in a gathered manner, the effective working angles (i.e., effective light receiving angles) of the received light signals of the plurality of receiving lamps 302 can be superimposed and expanded, so that the effective working angle of the received light of the receiving lamp unit 300 is increased.
Further, the receiving lamp unit 300 may also include two receiving lamps 302 (infrared lamps) disposed in a gathered manner, wherein one receiving lamp 302 is disposed obliquely to the other receiving lamp 302. Similarly, the receiving light unit 300 may also be composed of two receiving light tubes 302, wherein at least one receiving light tube 302 is obliquely disposed on the surface of the circuit board 110, and one receiving light tube 302 is in a state of being inclined towards the other receiving light tube 302, so that the effective working angle of the receiving light unit 300 for receiving the light signal is larger than the effective working angle of the single receiving light tube 302 for receiving the light signal.
Moreover, for two receiving lamps 302 (infrared lamps) of the receiving lamp unit 300, one receiving lamp 302 may be disposed obliquely, the other receiving lamp 302 may be disposed conventionally, and the obliquely disposed receiving lamps 302 may be disposed obliquely toward the conventionally disposed receiving lamp 302, so that the effective operating angle of the receiving lamp unit 300 composed of the two receiving lamps 302 may be larger than that of the one conventional receiving lamp 302. In addition, the structure and function of the receiving lamp unit 300 composed of the two receiving lamps 302 are similar to those of the transmitting lamp unit 200 composed of the two transmitting lamps 202, and are not repeated here.
In addition, for the two receiving lamps 302 of the receiving lamp unit 300, the two receiving lamps 302 may also be disposed obliquely, and the substrate perpendicular lines of the second wafer mounting surfaces of the second lamp substrates of the two receiving lamps 302 are disposed obliquely with respect to each other. Similarly, by disposing the second lamp substrates of the two receiving lamps 302 in the receiving lamp unit 300 obliquely with respect to the surface of the circuit board 110, and disposing the two receiving lamps 302 obliquely with respect to each other, the effective operating angle of the two receiving lamps 302 can be further made larger than that of one conventional receiving lamp 302.
In addition, in the receiving lamp unit 300, the second lamp substrates of the at least two receiving lamps 302 disposed together may also be disposed integrally or independently. Moreover, the arrangement of the lamp substrates of the receiving lamps 302 in the receiving lamp unit 300 is similar to that of the transmitting lamp 202 in the transmitting lamp unit 200, and will not be repeated here.
In addition, the second lamp substrate of the receiving lamp 302 (infrared lamp) of the receiving lamp unit 300 may also be attached to the circuit board 110 on the peripheral side of the display screen 100. In addition, the second lamp substrate for receiving the lamp 302 may also be attached to the circuit board 110 on the peripheral side of the display 100. Moreover, the specific mounting manner of the receiving lamp 302 is similar to that of the transmitting lamp 202, and will not be described herein.
In addition, the invention also provides an electronic device comprising the infrared touch screen 10. In the infrared touch screen 10, the emission lamp units 200 formed by at least two emission lamp tubes 202 are gathered together, and at least one emission lamp tube 202 in the emission lamp units 200 is obliquely arranged towards other emission lamp tubes 202, so that the effective working angle (namely the effective light emitting angle) of the emission lamp units 200 and the light intensity of emitted light can be increased, the light intensity and uniformity of the light network of the infrared touch screen 10 can be increased, the touch control fineness and the writing and drawing effects of the infrared touch screen 10 can be improved, and the product performance of electronic equipment can be improved.
In addition, in the infrared touch screen 10 of the electronic device, the receiving lamp unit 300 formed by at least two receiving lamps 302 with a gathering arrangement may be also provided, and at least one receiving lamp 302 in the receiving lamp unit 300 is obliquely arranged towards the other receiving lamps 302, so that the effective working angle (i.e. the effective light receiving angle) of the receiving lamp unit 200 for receiving light rays can be increased, and the application performance and design flexibility of the infrared touch screen and the electronic device can be improved.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present invention, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. An infrared touch screen, comprising:
the display screen, at least two sides of the said display screen have circuit boards;
the at least two emitting lamp units are respectively arranged on the circuit boards at least two sides of the display screen and are used for emitting light rays to form an optical network in the display screen; the method comprises the steps of,
the at least two receiving lamp units are respectively arranged on the circuit boards at the at least two sides of the display screen and are used for receiving the light rays emitted by the emitting lamp units;
the LED lamp comprises a lamp body, a lamp receiving unit, a lamp emitting unit and a lamp receiving unit, wherein the lamp emitting unit or/and the lamp receiving unit comprises at least two infrared lamp tubes which are arranged in a gathering mode, at least one infrared lamp tube is obliquely arranged towards the other infrared lamp tube, and the lamp receiving unit is used for increasing the working angle of the lamp emitting unit or/and the lamp receiving unit.
2. The infrared touch screen of claim 1, wherein the infrared light tube comprises:
the lamp tube substrate is provided with a wafer mounting surface and a lamp tube mounting surface, and the lamp tube mounting surface is attached to the surface of the circuit board;
the lamp tube wafer is arranged on the wafer mounting surface of the lamp tube substrate; the method comprises the steps of,
the lamp tube lens is arranged on the wafer mounting surface of the lamp tube substrate and covers the outside of the lamp tube wafer;
in the transmitting lamp unit or/and the receiving lamp unit, a substrate vertical line of the wafer mounting surface of the lamp tube substrate of one infrared lamp tube is inclined and close to a substrate vertical line of the wafer mounting surface of the lamp tube substrate of the other infrared lamp tube.
3. The infrared touch screen according to claim 2, wherein the transmitting lamp unit or/and the receiving lamp unit comprises two infrared lamp tubes which are arranged together, and one infrared lamp tube is obliquely arranged towards the other infrared lamp tube.
4. The infrared touch screen of claim 3, wherein one of the infrared light tubes is disposed obliquely and the other of the infrared light tubes is disposed conventionally, and the obliquely disposed infrared light tubes are obliquely drawn toward the conventionally disposed infrared light tubes.
5. The infrared touch screen of claim 3, wherein both of the infrared lamps are disposed obliquely, and substrate perpendicular lines of the wafer mounting surfaces of the lamp substrates of both of the infrared lamps are disposed obliquely with respect to each other.
6. The infrared touch screen according to any one of claims 2 to 5, wherein the tube substrates of at least two of the infrared tubes of the transmitting lamp unit or/and the receiving lamp unit are provided integrally or independently of each other.
7. The infrared touch screen of any one of claims 1-5, wherein the tube substrates of the infrared tubes are being affixed to the circuit boards on at least two sides of the display screen.
8. The infrared touch screen of any one of claims 1-5, wherein the tube substrate sides of the infrared tube are attached to the circuit board on at least two sides of the display screen.
9. The infrared touch screen of any one of claims 1-5, wherein at least two sides of the display screen have at least one transmitting side and at least one receiving side disposed opposite to each other, at least two of the transmitting lamp units being disposed on the transmitting side, and at least two of the receiving lamp units being disposed on the receiving side.
10. The infrared touch screen of claim 9, wherein the transmitting side and the receiving side are disposed opposite or obliquely opposite to each other.
11. The infrared touch screen of any one of claims 1-5, wherein at least two of the transmitting light units and at least two of the receiving light units are disposed on at least two sides of the display screen in a staggered manner with respect to each other.
12. The infrared touch screen according to claim 1, wherein the transmitting lamp unit or/and the receiving lamp unit comprise at least two infrared lamp tubes which are arranged in a gathering way and are used for working under the driving of the same driving signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410111592.8A CN117631882A (en) | 2024-01-26 | 2024-01-26 | Infrared touch screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410111592.8A CN117631882A (en) | 2024-01-26 | 2024-01-26 | Infrared touch screen |
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