Infrared touch frame, infrared touch screen and interactive tablet

Abstract

The application relates to an infrared touch frame, an infrared touch screen and an interactive panel. The infrared touch frame adopts a non-mixed lamp arrangement design on a first direction frame, so that a first emitting element on the first frame and a first receiving element on a second frame can form more pure pair tube light, which provides higher resolution and accuracy when detecting a touch position, thereby significantly improving the accuracy of object recognition. Meanwhile, the mixed lamp arrangement on the second direction frame retains the ability of cross-axis detection, ensuring the stability and reliability of the infrared touch frame in a complex environment. This technical scheme not only solves the problem of few pure pair tube lights and limited recognition accuracy in the traditional mixed lamp arrangement mode, but also avoids the cost increase caused by the encryption lamp arrangement through the optimized arrangement mode, and realizes a good balance between cost and performance.

Description

Technical Field

[0001] This application relates to the field of infrared touch frame technology, and in particular to an infrared touch frame, an infrared touch screen, and an interactive flat panel. Background Technology

[0002] In the field of infrared touch technology, the infrared touch frame, as a core component, typically relies on the interaction of light between emitting and receiving elements to detect touch positions. Traditional infrared touch frame designs arrange both emitting and receiving elements on each edge of the frame, employing a mixed-light arrangement. This mixed-light arrangement helps form a cross-beam matrix, improving cross-axis detection capabilities.

[0003] For example, a traditional mixed-light method involves alternating transmitting and receiving elements on the first and second borders parallel to the X-axis, and also alternating transmitting and receiving elements on the third and fourth borders parallel to the Y-axis. While this design meets the requirements for cross-axis detection, the alternating arrangement of transmitting and receiving elements, compared to a non-mixed-light setup (where all elements on the first and second borders parallel to the X-axis are transmitting, all elements on the second border are receiving, and all elements on the third and fourth borders are transmitting and receiving), reduces the number of transmitting elements on each border (and also reduces the number of receiving elements on opposite borders). This results in a reduced optical path between the transmitting and receiving elements on opposite borders, meaning a decrease in the number of pure pair (coaxial transmission and reception) light rays, thus limiting the overall touch recognition accuracy. To improve accuracy, traditional solutions often require denser lamp arrangement, but this undoubtedly increases hardware costs. Utility Model Content

[0004] Therefore, the purpose of this application is to provide an infrared touch frame that improves the accuracy of touch recognition without increasing hardware costs.

[0005] According to a first aspect of the embodiments of this application, an infrared touch frame is provided, including a first border, a second border, a third border, and a fourth border; the first border and the second border are opposite to each other and both are parallel to a first direction; the third border and the fourth border are opposite to each other and both are parallel to a second direction; the first direction and the second direction are perpendicular to each other.

[0006] The first frame is provided with a plurality of first emitting elements arranged along a first direction; the second frame is provided with a plurality of first receiving elements arranged along the first direction; the first receiving element receives infrared light emitted coaxially by the corresponding first emitting element.

[0007] Both the third and fourth borders are provided with a plurality of second emitting elements and a plurality of second receiving elements arranged along the second direction; the second receiving elements receive infrared light emitted coaxially by the corresponding second emitting elements.

[0008] The first receiving element also receives infrared light emitted across the axis by the second transmitting element, and / or the second receiving element also receives infrared light emitted across the axis by the first transmitting element.

[0009] The infrared touch frame of this application optimizes the arrangement of emitting and receiving elements. In the first direction, a non-mixed-lamp arrangement is used, meaning only the first emitting element is placed on the first frame and only the first receiving element is placed on the second frame. This allows the first emitting element on the first frame and the first receiving element on the second frame to form more pure beam pairs. These beams provide higher resolution and accuracy when detecting touch positions, thus significantly improving object recognition accuracy. In the second direction, a mixed-lamp arrangement is used, meaning emitting and receiving elements are mixed on the third frame and mixed on the fourth frame, enabling cross-axis detection on the third and fourth frames. This technical solution not only solves the problem of limited pure beam pairs and accuracy in traditional mixed-lamp arrangements but also avoids the increased cost associated with denser lamp arrangements by optimizing the arrangement, effectively improving the object recognition accuracy of the infrared touch frame and achieving a good balance between cost and performance.

[0010] In one embodiment, on the third border, in a border area where the distance from the corner position intersecting with the first border or the second border is greater than a preset distance, a plurality of second transmitting elements and a plurality of second receiving elements are arranged along a second direction.

[0011] This application embodiment employs differentiated component arrangements on the third border for different areas. Specifically, in border areas where the distance to the corner intersecting with the first or second border is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity for most areas of the border in the second direction. In border areas where the distance to the corner is less than the preset distance, different arrangements can be used on the third border, such as consecutively arranging multiple third transmitting elements or third receiving elements, or alternatingly arranging multiple third transmitting elements and multiple third receiving elements. This special design ensures detection capability in the central area while also guaranteeing detection capability in the corner positions for different scenarios.

[0012] In one embodiment, on the third frame, in a frame area less than the preset distance from the corner position, a plurality of third emitting elements are continuously arranged along a second direction; the second receiving element also receives infrared light emitted coaxially by the third emitting elements; or, on the third frame, in a frame area less than the preset distance from the corner position, a plurality of third receiving elements are continuously arranged along a second direction; the third receiving elements receive infrared light emitted coaxially by the second emitting elements.

[0013] In this embodiment, in the border area where the distance to the corner intersecting with the first or second border is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity for most areas of the border in the second direction. In the border area where the distance to the corner is less than the preset distance, multiple third transmitting elements or third receiving elements are continuously arranged on the third border. This special design greatly enhances the light density and signal strength at the corner location. When approaching or at a corner, the dense and targeted light layout can more accurately capture touch actions, reducing cross-axis detection errors caused by uneven or insufficient light distribution.

[0014] In one embodiment, when multiple third emitting elements are continuously arranged along the second direction in a border area at a distance less than the preset distance from the corner on the third border, the first receiving element receives the infrared light emitted across the axis by the third emitting elements.

[0015] When multiple third receiving elements are continuously arranged along the second direction in the border area at a distance less than the preset distance from the corner position on the third border, the third receiving elements also receive infrared light emitted across the axis by the first transmitting element.

[0016] This application embodiment enhances signal coverage at the corner of the third frame by continuously placing a third transmitting element near the corner and using a first receiving element to receive its transaxial light, or by continuously placing a third receiving element near the corner and using the third receiving element to receive the transaxial light from the first transmitting element. This improves touch detection sensitivity and accuracy at the corner, avoids touch operation errors or response delays caused by corner detection problems, and enhances the user's operating experience throughout the entire touch area.

[0017] In one embodiment, on the fourth border, in a border area where the distance from the corner position intersecting with the first border or the second border is greater than the preset distance, a plurality of second transmitting elements and a plurality of second receiving elements are arranged along the second direction.

[0018] This application embodiment employs differentiated component arrangements on the fourth border for different areas. Specifically, in border areas where the distance to the corner intersecting with the first or second border is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity for most areas of the border in the second direction. In border areas where the distance to the corner is less than the preset distance, different arrangements can be used on the fourth border, such as consecutively arranging multiple fourth transmitting elements or fourth receiving elements, or alternatingly arranging multiple fourth transmitting elements and multiple fourth receiving elements. This special design ensures detection capability in the central area while also guaranteeing detection capability in the corner positions for different scenarios.

[0019] In one embodiment, on the fourth frame, in a frame region where the distance from the corner where it intersects with the first frame or the second frame is less than the preset distance, a plurality of fourth receiving elements are continuously arranged along a second direction; the fourth receiving elements receive infrared light emitted coaxially by the second emitting elements; or, on the fourth frame, in a frame region where the distance from the corner where it intersects with the first frame or the second frame is less than the preset distance, a plurality of fourth emitting elements are continuously arranged along a second direction; the second receiving elements receive infrared light emitted coaxially by the fourth emitting elements.

[0020] In this embodiment, in the border area where the distance to the corner intersecting with the first or second border is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity for most areas of the border in the second direction. In the border area where the distance to the corner is less than the preset distance, multiple fourth transmitting elements or fourth receiving elements are continuously arranged on the fourth border. This special design greatly enhances the light density and signal strength at the corner. When approaching or at a corner, the dense and targeted light layout can more accurately capture touch actions, reducing cross-axis detection errors caused by uneven or insufficient light distribution.

[0021] In one embodiment, when multiple fourth receiving elements are continuously arranged along the second direction in a border area on the fourth border where the distance from the corner position intersecting with the first border or the second border is less than the preset distance, the fourth receiving elements also receive infrared light emitted across the axis by the first transmitting element.

[0022] When multiple fourth emitting elements are continuously arranged along the second direction in a border area on the fourth border where the distance from the corner position intersecting with the first border or the second border is less than the preset distance, the first receiving element receives the infrared light emitted across the axis by the fourth emitting elements.

[0023] This application embodiment enhances signal coverage at the corner of the third frame by continuously placing a fourth transmitting element near the corner and using a first receiving element to receive its transaxial light, or by continuously placing a fourth receiving element near the corner and using the fourth receiving element to receive the transaxial light from the first transmitting element. This improves touch detection sensitivity and accuracy at the corner, avoids touch operation errors or response delays caused by corner detection problems, and enhances the user's operating experience throughout the entire touch area.

[0024] In one embodiment, the plurality of second transmitting elements and the plurality of second receiving elements on the third and fourth borders are arranged alternately along a second direction.

[0025] In this embodiment, the third and fourth borders are arranged alternately. This arrangement allows for the formation of dense transaxial rays on the third and fourth borders, resulting in higher precision transaxial detection capabilities.

[0026] In one embodiment, the spacing between adjacent second transmitting elements and second receiving elements on the third and fourth borders is smaller than the spacing between adjacent first transmitting elements on the first border; the spacing between adjacent second transmitting elements and second receiving elements on the third and fourth borders is smaller than the spacing between adjacent first receiving elements on the second border.

[0027] In this embodiment, by meticulously planning the spacing between adjacent second transmitting and receiving elements on the third and fourth borders, making it smaller than the spacing between adjacent first transmitting elements on the first border and adjacent first receiving elements on the second border, the touch detection accuracy and sensitivity on the second-direction border are directly improved. This also indirectly and significantly enhances the cross-axis detection capability of the infrared touch frame. It reduces blind spots or errors in cross-axis detection caused by sparse light, and improves the overall robustness and response speed of touch detection, providing users with a smoother and more accurate interactive experience.

[0028] In one embodiment, a plurality of first transmitting elements of the first frame are arranged at non-equal intervals along a first direction; a plurality of first receiving elements of the second frame are arranged at non-equal intervals along the first direction.

[0029] This application embodiment can differentiate the layout of different areas of the frame according to the actual touch detection requirements. This non-equidistant arrangement design allows the infrared touch frame to make more efficient use of the transmitting and receiving components as a whole. While ensuring the accuracy and sensitivity of touch detection, it improves the utilization efficiency of resources, avoids unnecessary component waste, and further enhances the performance and adaptability of the infrared touch frame in various application scenarios, bringing users a more stable and accurate touch interaction experience.

[0030] In one embodiment, the second transmitting element and the second receiving element, which are alternately arranged on the third and fourth borders, are arranged at non-equidistant intervals along the second direction.

[0031] In this embodiment, the second transmitting and receiving elements, alternately arranged on the third and fourth borders, are arranged with non-equidistant spacing along the second direction. This non-equidistant arrangement optimizes the characteristics of different areas of the touch frame. This design, which flexibly adjusts the element spacing according to regional characteristics, optimizes the overall performance of the infrared touch frame. It provides an excellent touch experience in critical areas while achieving reasonable resource allocation in non-critical areas. Thus, while ensuring high-precision and high-sensitivity touch detection, it further enhances the practicality and economy of the infrared touch frame.

[0032] In one embodiment, the number of the second transmitting elements and the number of the second receiving elements are equal, with the third and fourth borders alternating between them.

[0033] In this embodiment, the number of second transmitting elements and the number of second receiving elements are equal on the third frame, and correspondingly, the number of second transmitting elements and the number of second receiving elements are also equal on the fourth frame. This ensures that each transmitting element has a corresponding receiving element to receive its emitted infrared light, thereby guaranteeing the integrity and accuracy of touch detection on the second-direction frame.

[0034] In one embodiment, the infrared touch frame further includes a processing unit; the processing unit is connected to the first transmitting element, the second transmitting element, the first receiving element, and the second receiving element;

[0035] When the first receiving element also receives infrared light emitted across the axis by the second transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, and the second transaxial light data received by the first receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, and the second transaxial light data.

[0036] When the second receiving element also receives infrared light emitted transaxially by the first transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, and the first transaxial light data received by the second receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, and the first transaxial light data.

[0037] When the first receiving element also receives infrared light emitted across the axis by the second transmitting element, and the second receiving element also receives infrared light emitted across the axis by the first transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, the first transaxial light data received by the second receiving element, and the second transaxial light data received by the first receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, the first transaxial light data, and the second transaxial light data.

[0038] In this embodiment, the processing unit integrates first coaxial light data, second coaxial light data, and transaxial light data to more accurately determine the position and action of the touch point. Through the comprehensive fusion processing of coaxial and transaxial light data, the touch detection accuracy and robustness of the infrared touch frame are significantly improved, providing users with a smoother, more natural, and accurate interactive experience. This technical solution enables the infrared touch frame to maintain high-performance detection capabilities when dealing with various complex touch scenarios.

[0039] According to a second aspect of the present application, an infrared touch screen is provided, including a display screen and an infrared touch frame as described in any one of the embodiments of the present application; the infrared touch frame surrounds the display screen.

[0040] The infrared touchscreen of this embodiment employs the infrared touch frame of this embodiment. By optimizing the arrangement of the transmitting and receiving elements, the object recognition accuracy of the infrared touch frame is effectively improved without significantly increasing hardware costs. By surrounding the display screen with the infrared touch frame described in the above embodiment, a deep integration of the display screen and touch detection function is achieved. The infrared touch frame can accurately capture the user's touch actions on the display screen and accurately determine the position and action of the touch point by comprehensively considering multi-dimensional and multi-directional light information. By combining the advanced technology of the infrared touch frame, the overall performance and user experience of the touchscreen are significantly improved.

[0041] According to a third aspect of the embodiments of this application, an interactive flat panel is provided, including the infrared touch screen described in any one of the embodiments of this application.

[0042] The interactive flat panel of this application, by integrating the infrared touchscreen of the above-described embodiments, significantly improves the touch interaction performance and user experience. The application of the infrared touchscreen of this application enhances response speed and stability. Users experience more immediate feedback when operating the interactive flat panel, receiving accurate execution whether performing rapid handwriting input, detailed graphic drawing, or complex application operations. This seamless interactive experience greatly improves user work efficiency and entertainment experience, enabling the interactive flat panel to be more widely and deeply applied in education, conferencing, design, and other fields.

[0043] To better understand and implement this application, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of an infrared touch frame in the prior art;

[0045] Figure 2 This is a schematic diagram of the infrared touch frame in an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the structure of the infrared touch frame in another embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the structure of the infrared touchscreen according to an embodiment of this application;

[0048] Figure 5 This is a schematic diagram of the structure of the interactive flat panel according to an embodiment of this application. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings. Wherein, when the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0050] It should be understood that the embodiments described below do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0051] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, in the description of this application, unless otherwise stated, “a plurality” means two or more. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items, for example, A and / or B, which can represent: A alone, A and B together, and B alone; the character “ / ” generally indicates that the preceding and following objects are in an “or” relationship.

[0052] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, this information should not be limited to these terms, and these terms are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Depending on the context, the word "if" as used in this application can be interpreted as "when," "when," or "in response to determination."

[0053] In the field of infrared touch technology, the infrared touch frame, as a core component, typically relies on the interaction of light between emitting and receiving elements to detect touch positions. Traditional infrared touch frame designs arrange both emitting and receiving elements on each edge of the frame, employing a mixed-light arrangement. This mixed-light arrangement helps form a cross-beam matrix, improving cross-axis detection capabilities.

[0054] For example, please refer to Figure 1 The traditional mixed-light method involves alternating the placement of emitting and receiving elements on the first and second borders parallel to the X-axis, and also alternating them on the third and fourth borders parallel to the Y-axis. While this design satisfies the requirements for cross-axis detection, the alternating placement of emitting and receiving elements, compared to a non-mixed-light setup (where all elements on the first and second borders parallel to the X-axis are emitting, and all elements on the third and fourth borders parallel to the Y-axis are emitting), reduces the number of emitting elements on each border (and consequently reduces the number of receiving elements on opposite borders). This results in a reduction in the optical path formed between the emitting and receiving elements on opposite borders, leading to a decrease in the amount of light emitted by pure phototransistors (i.e., coaxial transmission and reception), thus limiting the overall touch recognition accuracy.

[0055] Specifically, taking the lamp elements on the first and second borders, which are parallel to the X-axis, as an example, with the first and second borders positioned opposite each other and each containing 20 lamp elements, when using a mixed lamp arrangement, the first border alternately arranges 10 emitting elements and 10 receiving elements, and similarly, the second border alternately arranges 10 emitting elements and 10 receiving elements. Therefore, for each emitting element on the first border, the light emitted sequentially is received by only 10 receiving elements on the second border, resulting in only 10 × 10 light pairs. Simultaneously, for the light emitted from the emitting elements on the second border, only 10 receiving elements on the first border receive the light, also resulting in 10 × 10 light pairs. Thus, the total number of light pairs formed by the first and second borders is 10 × 10 × 2 = 200 pairs. Compared to the non-mixed lamp arrangement, the number of receiving elements corresponding to each emitting element is reduced, leading to a decrease in the light path formed between the emitting and receiving elements on the opposite borders, thus limiting the overall touch recognition accuracy.

[0056] This application embodiment optimizes the arrangement of the transmitting and receiving elements in the infrared touch frame. In the first direction, the transmitting and receiving elements are arranged without mixed lighting to form more pure beams and improve object recognition accuracy. In the second direction, the mixed lighting arrangement is maintained, which is conducive to forming a cross beam matrix and retaining some cross-axis detection capability. This achieves improved object recognition accuracy without increasing hardware costs.

[0057] Please refer to Figure 2 The infrared touch frame of this application embodiment includes a first frame 101, a second frame 102, a third frame 103 and a fourth frame 104; the first frame 101 and the second frame 102 are opposite to each other and are both parallel to a first direction; the third frame 103 and the fourth frame 104 are opposite to each other and are both parallel to a second direction; the first direction and the second direction are perpendicular to each other.

[0058] The first frame 101 is provided with a plurality of first emitting elements arranged along the first direction; the second frame 102 is provided with a plurality of first receiving elements arranged along the first direction; the first receiving elements receive infrared light emitted coaxially by the corresponding first emitting elements.

[0059] Both the third frame 103 and the fourth frame 104 are provided with a plurality of second emitting elements and a plurality of second receiving elements arranged along the second direction; the second receiving elements receive infrared light emitted coaxially by the corresponding second emitting elements.

[0060] The first receiving element also receives infrared light emitted across the axis by the second transmitting element, and / or the second receiving element also receives infrared light emitted across the axis by the first transmitting element.

[0061] The first border 101, the second border 102, the third border 103, and the fourth border 104 constitute the main structure of the infrared touch frame. In this embodiment, the first direction can be understood as the direction of the X-axis, and the second direction can be understood as the direction of the Y-axis, or the first direction can be understood as the direction of the Y-axis, and the second direction can be understood as the direction of the X-axis. In this embodiment, when facing the infrared touch frame, the horizontal direction is the X-axis, and the vertical direction is the Y-axis.

[0062] In one embodiment, the first receiving element and the first transmitting element correspond one-to-one in the second direction. In another embodiment, the first receiving element and the first transmitting element may not correspond one-to-one in the second direction.

[0063] In one embodiment, the second receiving element and the second transmitting element correspond one-to-one in the first direction. In another embodiment, the second receiving element and the second transmitting element may not correspond one-to-one in the first direction.

[0064] In one embodiment, a plurality of first transmitting elements of the first frame 101 are arranged at equal intervals along a first direction; a plurality of first receiving elements of the second frame 102 are arranged at equal intervals along the first direction. In another embodiment, the plurality of first transmitting elements of the first frame 101 may also be arranged at non-equal intervals along the first direction; the plurality of first receiving elements of the second frame 102 are also arranged at non-equal intervals along the first direction. In yet another embodiment, the plurality of first transmitting elements of the first frame 101 are arranged at equal intervals along the first direction; the plurality of first receiving elements of the second frame 102 are arranged at non-equal intervals along the first direction, or the plurality of first transmitting elements of the first frame 101 are arranged at non-equal intervals along the first direction; the plurality of first receiving elements of the second frame 102 are arranged at non-equal intervals along the first direction.

[0065] In one embodiment, the plurality of second transmitting elements and the plurality of second receiving elements on the third border 103 and the fourth border 104 may be arranged alternately, with the next second receiving element arranged after each second transmitting element is arranged, i.e., "second transmitting element, second receiving element, second transmitting element, second receiving element...".

[0066] In another embodiment, the plurality of second transmitting elements and the plurality of second receiving elements on the third border 103 and the fourth border 104 may be arranged in a series of N consecutive transmitting elements followed by N consecutive receiving elements, and then N consecutive transmitting elements; where N is an integer greater than or equal to 2.

[0067] In another embodiment, the plurality of second transmitting elements and the plurality of second receiving elements on the third border 103 and the fourth border 104 can also be arranged in a sequence of N consecutive second transmitting elements, followed by M consecutive second receiving elements, and then M consecutive second transmitting elements; wherein N and M are both integers greater than or equal to 1, and can be randomly selected. For example, 2 consecutive second transmitting elements, 1 consecutive second receiving element, 1 consecutive second transmitting element, or 4 consecutive second receiving elements can be arranged.

[0068] In one embodiment, the second transmitting elements and / or second receiving elements disposed on the third frame 103 are arranged at equal intervals along the second direction, and the second transmitting elements and / or second receiving elements disposed on the fourth frame 104 are also arranged at equal intervals along the second direction. In another embodiment, the second transmitting elements and / or second receiving elements disposed on the third frame 103 may also be arranged at non-equal intervals along the second direction, and the second transmitting elements and / or second receiving elements disposed on the fourth frame 104 may also be arranged at non-equal intervals along the second direction. In yet another embodiment, the second transmitting elements and / or second receiving elements disposed on the third frame 103 are arranged at equal intervals along the second direction, and the second transmitting elements and / or second receiving elements disposed on the fourth frame 104 are arranged at non-equal intervals along the second direction; or, the second transmitting elements and / or second receiving elements disposed on the third frame 103 are arranged at non-equal intervals along the second direction, and the second transmitting elements and / or second receiving elements disposed on the fourth frame 104 are arranged at equal intervals along the second direction.

[0069] In this embodiment, "coaxial emission" refers to light emitted from an emitting element on one side of the infrared touch frame and received by a receiving element on the opposite side of the frame. Specifically, it could be light emitted from an emitting element on one side of the frame parallel to the Y-axis and received by a receiving element on the other side of the frame parallel to the Y-axis, or light emitted from an emitting element on one side of the frame parallel to the X-axis and received by a receiving element on the other side of the frame parallel to the X-axis. Coaxially emitted light can include direct light and oblique light. Direct light means that the emitting element and the receiving element are directly opposite each other in direction, while oblique light means that the emitting element and the receiving element are not directly opposite each other in direction. Specifically, in this embodiment, when light is emitted from one side of the frame in the first direction to the other side of the frame in the first direction, it includes not only direct light (coaxial direct light) where the emitting element and the receiving element are on the same straight line, but also obliquely emitted light (coaxial oblique light), that is, although the emitting element and the receiving element are not on the same straight line, it still belongs to the light propagation on the frame in the first direction.

[0070] In this embodiment, "transaxial emission" refers to light emitted from an emitting element on one edge of the infrared touch frame and received by a receiving element on another edge perpendicular to that edge. Specifically, it can be emitted from the X-axis edge to the Y-axis edge, or vice versa. In one embodiment, the first receiving element can receive both coaxial infrared light from the first emitting element and transaxial infrared light from the second emitting element; similarly, the second receiving element can receive both coaxial infrared light from the second emitting element and transaxial infrared light from the first emitting element.

[0071] Specifically, taking the lamp elements on the first and second borders arranged parallel to the X-axis as an example, with the first and second borders positioned opposite each other and each border containing 20 lamp elements, in the non-mixed lamp arrangement of this embodiment, the first border is entirely set with 20 emitting elements, and the second border is entirely set with 20 receiving elements. Therefore, the light emitted sequentially by each emitting element on the first border is received by 20 receiving elements on the second border, resulting in 20 × 20 = 400 light pairs. Compared to the traditional mixed lamp arrangement, this embodiment significantly increases the number of pure lamp pairs between the first and second borders, improving touch detection accuracy without increasing hardware costs.

[0072] The infrared touch frame of this application optimizes the arrangement of the transmitting and receiving elements. In the first direction, a non-mixed-light arrangement is used, meaning only the first transmitting element is placed on the first frame 101, and only the first receiving element is placed on the second frame 102. This allows the first transmitting element on the first frame 101 and the first receiving element on the second frame 102 to form more pure beam pairs. These beams provide higher resolution and accuracy when detecting touch positions, thus significantly improving the accuracy of object recognition. In the second direction, a mixed-light arrangement is used, meaning the transmitting and receiving elements are placed on the third frame 103, and the receiving and transmitting elements are placed on the fourth frame 104. This enables cross-axis detection capabilities on the third and fourth frames 103 and 104. This technical solution not only solves the problem of limited pure beam pairs and accuracy in traditional mixed-light arrangements, but also avoids the increased cost associated with denser lamp arrangements by optimizing the arrangement, effectively improving the object recognition accuracy of the infrared touch frame and achieving a good balance between cost and performance.

[0073] In one embodiment, a plurality of first transmitting elements of the first frame 101 are arranged at non-equal intervals along a first direction; a plurality of first receiving elements of the second frame 102 are arranged at non-equal intervals along the first direction.

[0074] In this embodiment, multiple first transmitting elements of the first frame are arranged at non-equidistant intervals along a first direction, and multiple first receiving elements of the second frame are also arranged at non-equidistant intervals along the first direction. This allows for differentiated layouts in different areas based on actual touch detection needs. For example, in areas with frequent touch operations or higher touch accuracy requirements, the transmitting and receiving elements can be arranged relatively densely to enhance signal coverage and detection capabilities. Conversely, in areas with fewer touch operations or lower accuracy requirements, they can be arranged more sparsely to optimize overall cost and power consumption. This non-equidistant arrangement design allows the infrared touch frame to utilize the transmitting and receiving elements more effectively, improving resource utilization efficiency while ensuring touch detection accuracy and sensitivity. It avoids unnecessary component waste and further enhances the performance and adaptability of the infrared touch frame in various application scenarios, providing users with a more stable and accurate touch interaction experience.

[0075] In one embodiment, on the first border, the spacing between adjacent first transmitting elements in the first intermediate region is greater than the spacing between adjacent first transmitting elements in the first edge region. The first edge region is the region on the first border whose distance from a corner point of the first border is less than or equal to a first distance threshold, and the first intermediate region is the region on the first border whose distance from a corner point of the first border is greater than the first distance threshold. Furthermore, on the second border, the spacing between adjacent first receiving elements in the second intermediate region is greater than the spacing between adjacent first receiving elements in the second edge region. The second edge region is the region on the second border whose distance from a corner point of the second border is less than or equal to the first distance threshold, and the second intermediate region is the region on the second border whose distance from a corner point of the second border is greater than the first distance threshold.

[0076] In this embodiment, the first transmitting element on the first frame and the first receiving element on the second frame both employ a specific non-uniform spacing arrangement. Areas near the corners of the frame are typically more sensitive to touch operations and prone to accidental touches or signal interference. By densely arranging the transmitting and receiving elements in these areas, the detection accuracy and response speed can be significantly improved, effectively reducing accidental touches and enhancing touch accuracy. In the middle area, where touch operations are relatively smooth and interference is less, appropriately increasing the element spacing can reduce the number of elements and overall power consumption while maintaining basic detection performance, thus achieving a balance between cost and performance. This differentiated spacing arrangement allows the infrared touch frame to maintain high precision and high sensitivity while better adapting to the touch needs of different areas, providing users with a more stable and reliable touch interaction experience.

[0077] In one embodiment, the second transmitting element and the second receiving element disposed on the third border 103 and the fourth border 104 are arranged at non-equal intervals along the second direction.

[0078] In this embodiment, the second transmitting and receiving elements disposed on the third and fourth borders are arranged with non-equidistant spacing along the second direction. This non-equidistant arrangement optimizes the characteristics of different areas of the touch frame. In an infrared touch frame, different areas may have different detection requirements due to factors such as touch frequency, operation method, or environmental interference. Near certain critical operation areas or locations susceptible to interference, densely arranging the second transmitting and receiving elements can enhance signal strength, improve detection sensitivity and accuracy, and ensure rapid response and accurate recognition of touch operations. In relatively less important or less interfered areas, appropriately increasing the element spacing can reduce the number of elements while maintaining basic detection performance, thus lowering overall cost and power consumption. This design, which flexibly adjusts the element spacing according to regional characteristics, optimizes the overall performance of the infrared touch frame. It provides an excellent touch experience in critical areas and achieves reasonable resource allocation in non-critical areas, thereby further improving the practicality and economy of the infrared touch frame while ensuring high-precision and high-sensitivity touch detection.

[0079] In one embodiment, a plurality of second transmitting elements and a plurality of second receiving elements on the third frame 103 and the fourth frame 104 are arranged alternately along a second direction.

[0080] In this embodiment, the third border 103 and the fourth border 104 are arranged alternately. This arrangement allows dense transaxial light rays to be formed on the third border 103 and the fourth border 104, resulting in higher precision transaxial detection capability.

[0081] In one embodiment, on the third border, the spacing between adjacent second transmitting elements and second receiving elements in the third middle region is greater than the spacing between adjacent second transmitting elements and second receiving elements in the third edge region. The third edge region is the region on the third border where the distance from a corner point of the third border is less than or equal to a second distance threshold, and the third middle region is the region on the third border where the distance from a corner point of the third border is greater than the second distance threshold. On the fourth border, the spacing between adjacent second transmitting elements and second receiving elements in the fourth middle region is greater than the spacing between adjacent second transmitting elements and second receiving elements in the fourth edge region. The fourth edge region is the region on the fourth border where the distance from a corner point of the fourth border is less than or equal to the second distance threshold, and the fourth middle region is the region on the fourth border where the distance from a corner point of the fourth border is greater than the second distance threshold.

[0082] In this embodiment, the edge regions of the third and fourth borders—that is, the third and fourth edge regions located at a distance from the corner points of the borders less than or equal to the second distance threshold—are more susceptible to frequent and complex touch operations, or more easily affected by environmental interference. By reducing the spacing between adjacent second transmitting and receiving elements, the signal coverage and detection capabilities of these regions can be enhanced, improving the sensitivity and accuracy of touch detection, effectively reducing touch blind spots, and ensuring fast and accurate touch response even in edge regions. Meanwhile, the third and fourth middle regions, being farther from the corner points of the borders, experience relatively stable touch operations with less interference. Appropriately increasing the spacing between adjacent elements can reduce the number of elements used, lowering production costs and power consumption, while maintaining basic touch detection performance. This spacing design based on regional characteristic differences allows the infrared touch frame to achieve a balance between performance and cost, providing an excellent touch experience in critical edge regions while rationally allocating resources in the middle regions.

[0083] In one embodiment, the number of second transmitting elements and second receiving elements disposed on the third border 103 and the fourth border 104 are equal.

[0084] In this embodiment, the number of second transmitting elements on the third frame 103 is equal to the number of second receiving elements. Correspondingly, the number of second transmitting elements on the fourth frame 104 is also equal to the number of second receiving elements. This method ensures that each transmitting element has a corresponding receiving element to receive the infrared light it emits, thereby ensuring the integrity and accuracy of touch detection on the second directional frame.

[0085] Please refer to Figure 3 In one embodiment, the spacing between adjacent second transmitting elements and second receiving elements on the third border 103 and the fourth border 104 is smaller than the spacing between adjacent first transmitting elements on the first border 101; the spacing between adjacent second transmitting elements and second receiving elements on the third border 103 and the fourth border 104 is smaller than the spacing between adjacent first receiving elements on the second border 102.

[0086] In this embodiment, by meticulously planning the spacing between adjacent second transmitting and receiving elements on the third and fourth borders 103 and 104, making it smaller than the spacing between adjacent first transmitting elements on the first border 101 and adjacent first receiving elements on the second border 102, the touch detection accuracy and sensitivity in the second direction are directly improved, and the cross-axis detection capability of the infrared touch frame is indirectly and significantly enhanced. Specifically, the denser light layout of the second-direction borders provides richer light path selection and higher signal strength for cross-axis detection, making the cross-axis light propagation from the first-direction border to the second-direction border (or vice versa) more stable and reliable. When a touch operation occurs, the dense second-direction border light can more accurately capture light occlusion or changes in the cross-axis direction, and then work in conjunction with the detection data of the first-direction border to achieve a more comprehensive and accurate touch position determination. This solution not only reduces the cross-axis detection blind zone or error caused by sparse light, but also improves the robustness and response speed of the overall touch detection, bringing users a smoother and more accurate interactive experience.

[0087] Please refer to Figure 3 In one embodiment, on the third border 103, a border area with a distance greater than a preset distance from the corner position where it intersects with the first border 101 or the second border 102 is provided with a plurality of second transmitting elements and a plurality of second receiving elements along the second direction.

[0088] In this embodiment, differentiated element arrangements are used on the third border 103 for different areas. Specifically, in border areas where the distance to the corner where it intersects with the first border 101 or the second border 102 is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity for most areas of the border in the second direction. In border areas where the distance to the corner is less than the preset distance, different arrangements can be used on the third border 103, such as arranging multiple third transmitting elements or third receiving elements consecutively, or alternating between multiple third transmitting elements and multiple third receiving elements. This special design ensures detection capability in the central area while also guaranteeing detection capability in the corner areas for different scenarios.

[0089] In one embodiment, on the third frame 103, in a frame area less than a preset distance from the corner, a plurality of third emitting elements are continuously arranged along the second direction; the second receiving element also receives infrared light emitted coaxially by the third emitting elements; or, on the third frame 103, in a frame area less than a preset distance from the corner, a plurality of third receiving elements are continuously arranged along the second direction; the third receiving elements receive infrared light emitted coaxially by the second emitting elements.

[0090] In this embodiment, in the border area where the distance to the corner intersecting with the first border 101 or the second border 102 is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity of most areas of the border in the second direction. In the border area where the distance to the corner is less than the preset distance, multiple third transmitting elements or third receiving elements are continuously arranged on the third border 103. This special design greatly enhances the light density and signal strength at the corner location.

[0091] When a touch operation crosses the first and second directional borders (i.e., cross-axis detection), especially when near or in a corner, a dense and targeted lighting layout can more accurately capture the touch action, reducing cross-axis detection errors caused by uneven or insufficient light distribution. This not only ensures the continuity and accuracy of touch detection in the second direction but also optimizes the stability of the light interaction between the first and second directional borders during cross-axis detection. This allows the entire touch frame to maintain highly consistent performance in touch detection across different directions and positions, thus providing users with a smoother and more accurate cross-axis interaction experience.

[0092] In one embodiment, when multiple third emitting elements are continuously arranged along the second direction in a border area on the third border 103 at a distance less than a preset distance from the corner, the first receiving element receives the infrared light emitted across the axis by the third emitting elements.

[0093] When multiple third receiving elements are continuously arranged along the second direction in the border area of ​​the third border 103 at a distance less than a preset distance from the corner, the third receiving elements also receive infrared light emitted across the axis by the first transmitting element.

[0094] In this embodiment, on the third frame, when multiple third emitting elements are continuously arranged along the second direction in a frame area less than a preset distance from the corner position, the first receiving element receives the infrared light emitted across the axis by the third emitting elements; or, when multiple third receiving elements are continuously arranged along the second direction in a frame area less than a preset distance from the corner position, the third receiving element receives the infrared light emitted across the axis by the first emitting element.

[0095] This design effectively enhances signal coverage at the corners of the third frame. Traditional infrared touch frames often suffer from weak detection signals or blind spots at corners. This embodiment addresses this by continuously placing a third emitting element near the corner and using a first receiving element to receive its transaxial light, or by continuously placing a third receiving element near the corner and using the third receiving element to receive the transaxial light from the first emitting element. This ensures that the corners receive a more sufficient light signal, thereby improving the touch detection sensitivity and accuracy at corners. It avoids touch operation errors or response delays caused by corner detection problems, and enhances the user experience across the entire touch area.

[0096] Please refer to Figure 3 In one embodiment, on the fourth border 104, a border area with a distance greater than a preset distance from the corner position where it intersects with the first border 101 or the second border 102 is provided with a plurality of second transmitting elements and a plurality of second receiving elements along the second direction.

[0097] This embodiment employs differentiated component arrangements on the fourth border for different areas. Specifically, in border areas where the distance to the corner where it intersects with the first or second border is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity for most areas of the border in the second direction. In border areas where the distance to the corner is less than the preset distance, different arrangements can be used on the fourth border, such as consecutively arranging multiple fourth transmitting elements or fourth receiving elements, or alternatingly arranging multiple fourth transmitting elements and multiple fourth receiving elements. This special design ensures detection capability in the central area while also guaranteeing detection capability in the corner positions for different scenarios.

[0098] In one embodiment, on the fourth frame 104, in a frame area where the distance from the corner position intersecting with the first frame 101 or the second frame 102 is less than a preset distance, a plurality of fourth receiving elements are continuously arranged along the second direction; the fourth receiving elements receive infrared light emitted coaxially by the second transmitting elements; or, on the fourth frame 104, in a frame area where the distance from the corner position intersecting with the first frame 101 or the second frame 102 is less than a preset distance, a plurality of fourth transmitting elements are continuously arranged along the second direction; the second receiving elements receive infrared light emitted coaxially by the fourth transmitting elements.

[0099] In this embodiment, in the border area where the distance to the corner intersecting with the first border 101 or the second border 102 is greater than a preset distance, the second transmitting element and the second receiving element are arranged in a mixed manner along the second direction, ensuring the conventional touch detection accuracy and sensitivity of most areas of the border in the second direction. In the border area where the distance to the corner is less than the preset distance, multiple fourth receiving elements or multiple fourth transmitting elements are continuously arranged on the fourth border 104. This special design greatly enhances the light density and signal strength at the corner location.

[0100] When a touch operation crosses the first and second directional borders (i.e., cross-axis detection), especially when near or in a corner, a dense and targeted lighting layout can more accurately capture the touch action, reducing cross-axis detection errors caused by uneven or insufficient light distribution. This not only ensures the continuity and accuracy of touch detection in the second direction but also optimizes the stability of the light interaction between the first and second directional borders during cross-axis detection. This allows the entire touch frame to maintain highly consistent performance in touch detection across different directions and positions, thus providing users with a smoother and more accurate cross-axis interaction experience.

[0101] In one embodiment, when a frame region on the fourth frame 104, where the distance from the corner position intersecting with the first frame 101 or the second frame 102 is less than the preset distance, is provided with a plurality of fourth receiving elements continuously along the second direction, the fourth receiving elements also receiving infrared light emitted across the axis by the first transmitting element.

[0102] On the fourth frame 104, in a frame area where the distance to the corner position intersecting with the first frame 101 or the second frame 102 is less than the preset distance, a plurality of fourth emitting elements are continuously arranged along the second direction, and the first receiving element receives the infrared light emitted across the axis by the fourth emitting elements.

[0103] In this embodiment, on the fourth frame, when multiple fourth receiving elements are continuously arranged along the second direction in a frame area less than a preset distance from the corner position, the fourth receiving elements receive infrared light emitted across the axis by the first transmitting element; or, when multiple fourth receiving elements are continuously arranged along the second direction in a frame area less than a preset distance from the corner position, the first receiving element receives infrared light emitted across the axis by the fourth transmitting element.

[0104] This design effectively enhances signal coverage at the corners of the fourth frame. Traditional infrared touch frames often suffer from weak detection signals or blind spots at corners. This embodiment addresses this by continuously placing a fourth emitting element near the corner and using a first receiving element to receive its transaxial light, or by continuously placing a fourth receiving element near the corner and using the fourth receiving element to receive the transaxial light from the first emitting element. This effectively enhances signal coverage at the corners of the third frame. Consequently, it improves touch detection sensitivity and accuracy at corners, avoids touch operation errors or response delays caused by corner detection problems, and enhances the user experience across the entire touch area.

[0105] In one embodiment, when multiple third emitting elements are continuously arranged on the third frame 103 in a frame area less than a preset distance from the corner, multiple fourth receiving elements are continuously arranged on the fourth frame 104 in a frame area less than a preset distance from the corner, and the fourth receiving elements receive infrared light emitted coaxially by the third emitting elements; or, when multiple third receiving elements are continuously arranged on the third frame 103 in a frame area less than a preset distance from the corner, multiple fourth emitting elements are continuously arranged on the fourth frame 104 in a frame area less than a preset distance from the corner, and the third receiving elements receive infrared light emitted coaxially by the fourth emitting elements.

[0106] Preferably, the third transmitting element and the fourth receiving element on the third frame and the fourth frame, or the third receiving element and the fourth transmitting element, correspond one-to-one in the first direction.

[0107] In this embodiment, multiple third transmitting elements are continuously arranged on the third frame in a region less than a preset distance from the corner, and multiple fourth receiving elements are continuously arranged on the fourth frame in the same region. The fourth receiving elements receive the infrared light emitted coaxially by the third transmitting elements. This design significantly enhances the coaxial detection capability at the corner of the infrared touch frame. By concentrating coaxial transmitting and receiving elements near the corner, this embodiment forms a dense and stable light detection path, effectively improving the touch detection accuracy and reliability at the corner. This avoids inaccurate touch operations or abnormal responses caused by corner detection issues, thereby improving the user's operating experience throughout the entire touch area. Similarly, when multiple third receiving elements are continuously arranged on the third frame in a region less than a preset distance from the corner, and multiple fourth transmitting elements are continuously arranged on the fourth frame in the same region, with the third receiving elements receiving the infrared light emitted coaxially by the fourth transmitting elements, a similar effect can be achieved. This arrangement also strengthens the signal reception and detection capability at the corner, ensuring that the corner has the same accurate touch detection performance as other areas.

[0108] In one embodiment, the infrared touch frame further includes a processing unit; the processing unit is connected to the first transmitting element, the second transmitting element, the first receiving element, and the second receiving element;

[0109] When the first receiving element also receives infrared light emitted across the axis by the second transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, and the second transaxial light data received by the first receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, and the second transaxial light data.

[0110] When the second receiving element also receives infrared light emitted transaxially by the first transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, and the first transaxial light data received by the second receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, and the first transaxial light data.

[0111] When the first receiving element also receives infrared light emitted across the axis by the second transmitting element, and the second receiving element also receives infrared light emitted across the axis by the first transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, the first transaxial light data received by the second receiving element, and the second transaxial light data received by the first receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, the first transaxial light data, and the second transaxial light data.

[0112] The processing unit, the core component of the infrared touch frame, is responsible for controlling the operation of each emitting element and receiving light data from each receiving element. It processes and analyzes this data to determine the touch coordinates. It plays a role in control, data integration, and calculation.

[0113] In this embodiment, when a touch operation occurs, the processing unit integrates first coaxial light data, second coaxial light data, and transaxial light data to more accurately determine the position and action of the touch point. The introduction of transaxial light data provides additional spatial dimension information for touch detection, helping the processing unit to accurately determine touch coordinates even in complex or highly interfering environments. This comprehensive processing method not only enhances the detection capability along a single axis but also achieves omnidirectional, multi-angle perception of touch operations through the fusion of transaxial detection, effectively reducing detection errors caused by factors such as light obstruction, reflection, or interference. Therefore, the comprehensive fusion processing of coaxial and transaxial light data by the processing unit significantly improves the touch detection accuracy and robustness of the infrared touch frame, providing users with a smoother, more natural, and accurate interactive experience. This technical solution enables the infrared touch frame to maintain high-performance detection capabilities when dealing with various complex touch scenarios.

[0114] Please refer to Figure 4 This application also provides an infrared touch screen, including a display screen and an infrared touch frame according to any embodiment of this application; the infrared touch frame surrounds the display screen.

[0115] The infrared touchscreen provided in this application embodiment adopts the infrared touch frame described in the above embodiments. By optimizing the arrangement of the transmitting and receiving elements, the object recognition accuracy of the infrared touch frame is effectively improved without significantly increasing hardware costs. By surrounding the display screen with the infrared touch frame described in the above embodiments, a deep integration of the display screen and touch detection function is achieved. The infrared touch frame can accurately capture the user's touch actions on the display screen and accurately determine the position and action of the touch point by comprehensively considering multi-dimensional and multi-directional light information. This comprehensive touch detection capability enables the infrared touchscreen to maintain high-performance detection capabilities when dealing with various complex touch scenarios, providing users with a smooth, natural, and accurate interactive experience. At the same time, since the infrared touch frame surrounds the display screen, its detection area highly overlaps with the display area of ​​the screen, ensuring that touch detection can respond in real time and accurately when the user touches the display screen, further improving user satisfaction. Therefore, the infrared touchscreen provided in this application embodiment, by combining the advanced technology of the infrared touch frame, significantly improves the overall performance and user experience of the touchscreen.

[0116] Please refer to Figure 5 This application also provides an interactive flat panel, including an infrared touchscreen according to any embodiment of this application.

[0117] The interactive flat panel provided in this embodiment significantly improves the touch interaction performance and user experience by integrating the infrared touchscreen of the above-described embodiments. The application of the infrared touchscreen in this embodiment enhances response speed and stability. Users experience more immediate feedback when operating the interactive flat panel, receiving accurate execution whether performing rapid handwriting input, detailed graphic drawing, or complex application operations. This seamless interactive experience greatly improves user work efficiency and entertainment, enabling the interactive flat panel to be more widely and deeply applied in education, meetings, design, and other fields. Therefore, the interactive flat panel in this embodiment, by introducing advanced infrared touch frame technology, brings users an unprecedented new touch interaction experience.

[0118] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and this application also intends to include these modifications and variations.

Claims

1. An infrared touch frame, characterized in that, It includes a first border, a second border, a third border, and a fourth border; the first border and the second border are opposite to each other and are both parallel to a first direction; the third border and the fourth border are opposite to each other and are both parallel to a second direction; the first direction and the second direction are perpendicular to each other; The first frame is provided with a plurality of first emitting elements arranged along a first direction; the second frame is provided with a plurality of first receiving elements arranged along the first direction; the first receiving element receives infrared light emitted coaxially by the corresponding first emitting element. Both the third and fourth borders are provided with a plurality of second emitting elements and a plurality of second receiving elements arranged along the second direction; the second receiving elements receive infrared light emitted coaxially by the corresponding second emitting elements. The first receiving element also receives infrared light emitted across the axis by the second transmitting element, and / or the second receiving element also receives infrared light emitted across the axis by the first transmitting element.

2. The infrared touch frame according to claim 1, characterized in that, On the third frame, in a frame area where the distance from the corner position intersecting with the first frame or the second frame is greater than a preset distance, a plurality of second transmitting elements and a plurality of second receiving elements are arranged along the second direction.

3. The infrared touch frame according to claim 2, characterized in that, On the third frame, in a frame area less than the preset distance from the corner, a plurality of third emitting elements are continuously arranged along the second direction; the second receiving element also receives infrared light emitted coaxially by the third emitting elements; or, on the third frame, in a frame area less than the preset distance from the corner, a plurality of third receiving elements are continuously arranged along the second direction; the third receiving elements receive infrared light emitted coaxially by the second emitting elements.

4. The infrared touch frame according to claim 2, characterized in that, When multiple third emitting elements are continuously arranged along the second direction in the border area of ​​the third border where the distance from the corner position is less than the preset distance, the first receiving element receives the infrared light emitted across the axis by the third emitting elements. When multiple third receiving elements are continuously arranged along the second direction in the border area at a distance less than the preset distance from the corner position on the third border, the third receiving elements receive infrared light emitted across the axis by the first transmitting element.

5. The infrared touch frame according to any one of claims 1 to 4, characterized in that, On the fourth border, in a border area where the distance from the corner position intersecting with the first border or the second border is greater than the preset distance, a plurality of second transmitting elements and a plurality of second receiving elements are arranged along the second direction.

6. The infrared touch frame according to claim 5, characterized in that, On the fourth frame, in a frame region where the distance from the corner where it intersects with the first frame or the second frame is less than the preset distance, a plurality of fourth receiving elements are continuously arranged along the second direction; the fourth receiving elements receive infrared light emitted coaxially by the second emitting elements; or, on the fourth frame, in a frame region where the distance from the corner where it intersects with the first frame or the second frame is less than the preset distance, a plurality of fourth emitting elements are continuously arranged along the second direction; the second receiving elements receive infrared light emitted coaxially by the fourth emitting elements.

7. The infrared touch frame according to claim 5, characterized in that, When multiple fourth receiving elements are continuously arranged along the second direction in a border area on the fourth border where the distance from the corner position intersecting with the first border or the second border is less than the preset distance, the fourth receiving elements also receive infrared light emitted across the axis by the first transmitting element. When multiple fourth emitting elements are continuously arranged along the second direction in a border area on the fourth border where the distance from the corner position intersecting with the first border or the second border is less than the preset distance, the first receiving element receives the infrared light emitted across the axis by the fourth emitting elements.

8. The infrared touch frame according to claim 1, characterized in that, The plurality of second transmitting elements and the plurality of second receiving elements on the third frame and the fourth frame are arranged alternately along the second direction.

9. The infrared touch frame according to claim 8, characterized in that, The spacing between adjacent second transmitting elements and second receiving elements on the third and fourth borders is smaller than the spacing between adjacent first transmitting elements on the first border; the spacing between adjacent second transmitting elements and second receiving elements on the third and fourth borders is smaller than the spacing between adjacent first receiving elements on the second border.

10. The infrared touch frame according to claim 1, characterized in that, The plurality of first transmitting elements of the first frame are arranged at non-equal intervals along the first direction; the plurality of first receiving elements of the second frame are arranged at non-equal intervals along the first direction.

11. The infrared touch frame according to claim 1, characterized in that, The second transmitting element and the second receiving element disposed on the third frame and the fourth frame are arranged at non-equidistant intervals along the second direction.

12. The infrared touch frame according to claim 1, characterized in that, The number of second transmitting elements and second receiving elements disposed in the third frame and the fourth frame are equal.

13. The infrared touch frame according to claim 1, characterized in that, The infrared touch frame also includes a processing unit; the processing unit is connected to the first transmitting element, the second transmitting element, the first receiving element, and the second receiving element; When the first receiving element also receives infrared light emitted across the axis by the second transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, and the second transaxial light data received by the first receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, and the second transaxial light data. When the second receiving element also receives infrared light emitted transaxially by the first transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, and the first transaxial light data received by the second receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, and the first transaxial light data. When the first receiving element also receives infrared light emitted across the axis by the second transmitting element, and the second receiving element also receives infrared light emitted across the axis by the first transmitting element, the processing unit acquires the first coaxial light data received by the first receiving element, the second coaxial light data received by the second receiving element, the first transaxial light data received by the second receiving element, and the second transaxial light data received by the first receiving element; and determines the touch coordinate information based on the first coaxial light data, the second coaxial light data, the first transaxial light data, and the second transaxial light data.

14. An infrared touchscreen, characterized in that, It includes a display screen and an infrared touch frame as described in any one of claims 1 to 13; the infrared touch frame is disposed around the display screen.

15. An interactive flat panel, characterized in that, Including the infrared touchscreen as described in claim 14.

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