Novel multi-camera optical reflection man-machine interaction touch display screen
By placing multiple cameras and fill lights at the diagonal or four corners of the touch screen, the problems of high cost and complex structure in existing technologies are solved, achieving simplified installation and efficient touch recognition, thus improving the user experience.
Patent Information
- Application Number
- CN202520245070.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing touch devices require sensors to be installed on both sides/around the screen, resulting in high costs and complex structures.
By employing an optical sensor and fill light plate structure, multiple cameras and fill light plates are placed at the diagonal or four corners of the touch screen, simplifying the installation process and achieving zero black borders in optics.
It simplifies the touch installation process, reduces costs, enables any 2-point or 4-point touch recognition and gesture recognition, and improves the user experience.
Smart Images

Figure CN223650990U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a display screen, particularly a novel multi-camera optical reflection human-computer interaction touch display screen, which relates to the field of electronic devices and has wide applications in mobile devices, smart homes, automobiles and other fields. Background Technology
[0002] A touch device, also known as a touch panel, is a transparent medium attached to the surface of a display. It responds instantly to operations and provides a graphical interface for users. Its basic principle is that when a finger or other object touches the screen mounted on the front of the display, the touch position information is detected by the touch panel controller in coordinate form and sent to the CPU via an interface to determine the input information.
[0003] Please refer to the appendix. Figure 1 Currently, most touch devices on the market are dual-sided or quad-sided touch devices. Users need to install sensors on both sides or around the screen to achieve touch control. However, this method will increase the cost of the touch device as the number of sides increases, and the installation process will also become more complicated. Summary of the Invention
[0004] To address the shortcomings of existing touch devices that require sensors to be installed on both sides / around the screen to achieve touch control, resulting in high costs and complex structures, this invention provides a novel multi-camera optical reflection human-computer interaction touch display screen. It uses optical sensors in conjunction with a fill light plate structure to identify and calculate touch points within the touch screen area, resulting in a simple structure and low cost.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a novel multi-camera optical reflection human-computer interaction touch display screen, the touch display screen includes a touch screen, a first sensor, a second sensor, an auxiliary sensor, a first fill light plate, a second fill light plate and an auxiliary fill light plate. The first sensor and the second sensor are set at two diagonal positions corresponding to any side of the touch screen. The first fill light plate is set in correspondence with the first sensor, and the second fill light plate is set in correspondence with the second sensor. Auxiliary sensors are set at other positions along the edge of the touch screen, and auxiliary fill light plates are set in correspondence with the auxiliary sensors.
[0006] The technical solution adopted by this utility model to solve its technical problem further includes:
[0007] The auxiliary sensor and auxiliary lighting plate are a third sensor and a third lighting plate, respectively. The third sensor and the third lighting plate are respectively set at the adjacent edge of the edge where the first sensor and the second sensor are set, or at the opposite edge of the edge where the first sensor and the second sensor are set.
[0008] The third sensor and the third fill light plate are configured in one or more sets.
[0009] The auxiliary sensors include a fourth sensor and a fifth sensor, and the auxiliary fill light plate includes a fourth fill light plate and a fifth fill light plate. The first sensor, the second sensor, the fourth sensor, and the fifth sensor are respectively set at the four corners of the touch screen. The first fill light plate is set in correspondence with the first sensor, the second fill light plate is set in correspondence with the second sensor, the fourth fill light plate is set in correspondence with the fourth sensor, and the fifth fill light plate is set in correspondence with the fifth sensor.
[0010] The first, second, third, fourth, and fifth sensors are each equipped with an optical camera.
[0011] The first, second, third, fourth, and fifth fill light plates are each equipped with fill light lamps, and each fill light plate is equipped with one or more fill light lamps.
[0012] The supplementary lighting plate is positioned on the side of the sensor, behind the sensor, or in front of the sensor in an area that will not obstruct the sensor's information acquisition.
[0013] The sensor and the fill light plate are interconnected via ribbon cables.
[0014] The beneficial effects of this utility model are: the optical touch device of this utility model simplifies the existing traditional touch installation and production process. The optical touch device is extremely user-friendly in terms of both installation and use, and has more advantages than traditional technology. Users can interact with the display device through simple installation, thereby further enriching the application scenarios and improving the user experience. Users only need to perform simple installation at any diagonal position to interact with the display device.
[0015] This invention can completely eliminate the problem of large black borders in previous optical touch screens, achieving zero black borders in optical touch screens.
[0016] This invention can achieve any two-point touch recognition, as well as gesture recognition, and can achieve up to four-point touch recognition.
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a touch device in the prior art.
[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model.
[0020] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.
[0021] In the diagram, 1-touchscreen, 2-camera, 3-light panel, 4-infrared emitting LED, 5-connecting cable, 6-first sensor, 7-second sensor, 8-third sensor, 9-fourth sensor, 10-fifth sensor, 11-first fill light panel, 12-second fill light panel, 13-third fill light panel, 14-fourth fill light panel, 15-fifth fill light panel. Detailed Implementation
[0022] This embodiment is a preferred embodiment of the present invention. All other embodiments that are the same as or similar to this embodiment in principle and basic structure are within the protection scope of the present invention.
[0023] This utility model mainly includes a touch screen 1, a first sensor 6, a second sensor 7, an auxiliary sensor, a first fill light plate 11, a second fill light plate 12, and an auxiliary fill light plate. The first sensor 6 and the second sensor 7 are set at two diagonal positions corresponding to any side of the touch screen 1. The first fill light plate 11 is set in correspondence with the first sensor 6, and the second fill light plate 12 is set in correspondence with the second sensor 7. Auxiliary sensors are set at other positions along the edge of the touch screen 1, and the auxiliary fill light plates are set in correspondence with the auxiliary sensors.
[0024] In this embodiment, the touch screen 1 is set to correspond with the display screen (not shown in the figure). This utility model adopts the conventional setting method in the prior art, that is, the touch screen 1 is set above the display screen.
[0025] In this embodiment, the first sensor 6 and the second sensor 7 are positioned at two opposite corners of any side of the touch screen 1. Please refer to the attached diagram. Figure 2 and attached Figure 3 In this embodiment, the first sensor 6 and the second sensor 7 are located at two diagonal positions at both ends of the top edge of the touch screen 1. In specific implementation, the first sensor 6 and the second sensor 7 can also be located at two diagonal positions on other sides.
[0026] Example 1: Please refer to the appendix. Figure 2 In this embodiment, the auxiliary sensor and the auxiliary lighting plate can be defined as the third sensor 8 and the third lighting plate 13. The third sensor 8 and the third lighting plate 13 can be respectively set at the adjacent edge of the edge where the first sensor 6 and the second sensor 7 are set, or they can be set at the opposite edge of the edge where the first sensor 6 and the second sensor 7 are set. Usually, only one set of the third sensor 8 and the third lighting plate 13 is set. In specific implementation, multiple sets can be set according to actual needs.
[0027] Example 2: Please refer to the appendix. Figure 3In this embodiment, the auxiliary sensors include a fourth sensor 9 and a fifth sensor 10, and the auxiliary fill light plate includes a fourth fill light plate 14 and a fifth fill light plate 15. The first sensor 6, the second sensor 7, the fourth sensor 9, and the fifth sensor 10 are respectively set at the four corners of the touch screen 1. The first fill light plate 11 is set in correspondence with the first sensor 6, the second fill light plate 12 is set in correspondence with the second sensor 7, the fourth fill light plate 14 is set in correspondence with the fourth sensor 9, and the fifth fill light plate 15 is set in correspondence with the fifth sensor 10.
[0028] In this embodiment, the first sensor 6, the second sensor 7, the third sensor 8, the fourth sensor 9, and the fifth sensor 10 are all optical cameras, which can be used to collect optical information within the range of the touch screen 1.
[0029] In this embodiment, the first fill light plate 11, the second fill light plate 12, the third fill light plate 13, the fourth fill light plate 14 and the fifth fill light plate 15 are respectively provided with fill light lamps. Each fill light plate is provided with one or more fill light lamps. The fill light lamps can illuminate and supplement the area of the touch screen 1, which can make the sensor collect optical information more accurately.
[0030] The sensor and the corresponding fill light plate form a unit. The fill light plate and the sensor are set accordingly. In specific implementation, the fill light plate can be set on the side of the sensor, behind the sensor, or in front of the sensor in an area that will not block the sensor from collecting information. The fill light on the fill light plate can illuminate and supplement the area of the touch screen 1, which can make the sensor collect optical information more accurately.
[0031] In this embodiment, each sensor and each fill light plate are interconnected via ribbon cables (not shown in the figure).
[0032] Since the relative positions of each sensor and the touchscreen 1 are fixed, when there is touch on the touchscreen 1, the sensors capture the camera feature data at the time of touch, calculate the coordinates based on the data from three, four, or more cameras, and report the calculated coordinate data to the system, generating touch information that can be used to sense the user's finger touch position and gesture. The control unit can recognize the user's operation intention based on the sensor signals and transmit the corresponding instructions to the display screen for display.
[0033] The optical touch device of this invention simplifies the existing traditional touch installation and production process. The optical touch device is extremely user-friendly in terms of both installation and use, and has more advantages than traditional technologies. Users can interact with the display device through simple installation, thereby further enriching application scenarios and improving user experience. Users only need to install it at any diagonal position to interact with the display device.
[0034] This invention can completely eliminate the problem of large black borders in previous optical touch screens, achieving zero black borders in optical touch screens.
[0035] This invention can achieve any two-point touch recognition, as well as gesture recognition, and can achieve up to four-point touch recognition.
Claims
1. A novel multi-camera optical reflective human-computer interaction touch display screen, characterized by: The touch display screen includes a touch screen (1), a first sensor (6), a second sensor (7), an auxiliary sensor, a first fill light plate (11), a second fill light plate (12), and an auxiliary fill light plate. The first sensor (6) and the second sensor (7) are set at two opposite corners of any side of the touch screen (1). The first fill light plate (11) is set in correspondence with the first sensor (6), and the second fill light plate (12) is set in correspondence with the second sensor (7). Auxiliary sensors are set at other positions along the edge of the touch screen (1), and the auxiliary fill light plates are set in correspondence with the auxiliary sensors.
2. The novel multi-camera optical reflection human-computer interaction touch display screen according to claim 1, characterized in that: The auxiliary sensor and auxiliary fill light plate are the third sensor (8) and the third fill light plate (13). The third sensor (8) and the third fill light plate (13) are respectively set at the adjacent edge of the edge where the first sensor (6) and the second sensor (7) are set, or set at the opposite edge of the edge where the first sensor (6) and the second sensor (7) are set.
3. The novel multi-camera optical reflection human-computer interaction touch display screen according to claim 2, characterized in that: The third sensor (8) and the third fill light plate (13) are provided in one or more sets.
4. The novel multi-camera optical reflection human-computer interaction touch display screen according to claim 1, characterized in that: The auxiliary sensors include a fourth sensor (9) and a fifth sensor (10), and the auxiliary fill light plate includes a fourth fill light plate (14) and a fifth fill light plate (15). The first sensor (6), the second sensor (7), the fourth sensor (9) and the fifth sensor (10) are respectively set at the four corners of the touch screen (1). The first fill light plate (11) is set in correspondence with the first sensor (6), the second fill light plate (12) is set in correspondence with the second sensor (7), the fourth fill light plate (14) is set in correspondence with the fourth sensor (9), and the fifth fill light plate (15) is set in correspondence with the fifth sensor (10).
5. The novel multi-camera optical reflection human-computer interaction touch display screen according to claim 1, characterized in that: The first sensor (6), the second sensor (7), the third sensor (8), the fourth sensor (9) and the fifth sensor (10) are respectively optical cameras.
6. The novel multi-camera optical reflection human-computer interaction touch display screen according to claim 1, characterized in that: The first fill light plate (11), the second fill light plate (12), the third fill light plate (13), the fourth fill light plate (14) and the fifth fill light plate (15) are respectively provided with fill light lamps, and each fill light plate is provided with one or more fill light lamps.
7. The novel multi-camera optical reflection human-computer interaction touch display screen according to claim 1, characterized in that: The fill light plate is positioned on the side of the sensor, behind the sensor, or in front of the sensor in an area that will not obstruct the sensor from collecting information.
8. The novel multi-camera optical reflection human-computer interaction touch display screen according to claim 1, characterized in that: The sensor and the fill light plate are interconnected via ribbon cables.