TW202207011A - Non-contact electronic input device including a display screen for displaying a synthesized stereoscopic image - Google Patents

Abstract

Disclosed is a non-contact electronic input device including a display screen for displaying a synthesized stereoscopic image; an optical grating located in the front of the display screen and used for respectively projecting a left-eye image and a right-eye image in the synthesized stereoscopic image to the two eyes of a viewer to form a stereoscopic image in the mind, wherein when the synthesized stereoscopic image is viewed from the viewing angle of the viewer, some parts in the synthesized stereoscopic image may be displayed out of the display screen by a set distance; and an infrared position detector which is a frame-shaped array detector and arranged with a plurality of infrared sensors at the periphery of a frame enclosure. The infrared position detector is located in the front of the display screen. When a shielding object passes through a frame surface framed by the frame enclosure, the infrared position detector senses the position of the shielding object and delivers the position to a signal processor, and the position of the shielding object is compared with the synthesized stereoscopic image, so as to determine that the object that the position of the shielding object points to is a corresponding object in the synthesized stereoscopic image and determine an instruction included therein; and then, an instruction action is given to the next-grade external apparatus, so that relevant actions are preformed.

Description

Contactless Electronic Input Device

The present invention relates to an electronic input device, especially a non-contact electronic input device.

At present, many electronic devices are equipped with keyboards for receiving user input to perform specific operation functions. Generally, the keyboard can be a mechanical keyboard or a touch-sensitive keyboard with buttons on it. When the user touches a button on the keyboard, the button will transmit the corresponding operation command to the next-level action element for corresponding operation. Operational work.

However, the above-mentioned conventional keyboards, especially the keyboards of electronic devices that need to be widely operated by many people, such as the keyboards of ATMs in banks, or the keyboards of the operation interface of elevators, because the keys on the keyboards will be contacted by many people, so the It is very easy to contaminate the keys, and when the keys are contaminated with germs, the user will be contaminated by the keys when they touch the keys, so that there is a risk of infection with infectious diseases. So it is quite unsafe to use. Especially recently, due to the infection of new coronary pneumonia, many keyboards in public places must be equipped with protective covers to prevent users from being contaminated. However, these protective covers still come into contact with the user, so there is no way to completely prevent the user from being contaminated. Furthermore, the protective cover must be replaced frequently, which also causes a burden on maintenance personnel.

Therefore, the present case hopes to propose a new non-contact electronic input device to solve the above-mentioned defects in the prior art.

Therefore, the purpose of the present invention is to solve the above-mentioned problems in the prior art. The present invention proposes a non-contact electronic input device, which uses a stereo imaging method to form virtual keys, and uses an infrared detection method to sense user contact The position of the virtual key corresponds to the key operation command, so that the operator can operate the physical key by operating the virtual key without touching the physical key with his hand, so it will not pollute the physical key, and also Not affected by physical buttons.

In order to achieve the above object, the present invention provides a non-contact electronic input device, comprising a display screen for displaying an image, and the image is a composite stereoscopic image; the image displayed on the display screen is divided into a left-eye image and a right-eye image, The left-eye image and the right-eye image are divided and interleaved to form the composite stereoscopic image; wherein there is a grating in front of the display screen, and the grating is used to make the left-eye image and the right-eye image in the composite stereoscopic image Projected to the viewer's left eye and right eye respectively, so that the viewer's left eye and right eye respectively receive images from different perspectives due to the relationship of aberration, and form a three-dimensional image in the mind; When viewing the composite 3D image from a viewing angle, some parts of the composite 3D image will float out of a set distance on the display screen; an infrared position detector, which is a frame-shaped array detector, is A plurality of infrared sensors are arranged on the periphery of a frame; when a shield passes through the frame frame framed by the frame, the infrared rays will be blocked due to the shielding relationship. That is, the position of the shielding object is calculated; wherein the infrared position detector is arranged in front of the display screen, that is, a distance from one side of the near-viewer. When a shielding object passes through the frame framed by the frame, The infrared position detector senses the position of the shielding object; a signal processor is connected to the infrared position detector for receiving the position of the shielding object detected by the infrared position detector; The position is compared with the synthetic stereoscopic image displayed on the display screen, and the position of the shield is determined to be pointed to the synthetic stereoscopic image The corresponding object in the image; and according to the command contained in the corresponding object, the command action is sent to the external device at the next level to perform the relevant action.

The features and advantages of the present invention can be further understood from the following description, which is read with reference to the accompanying drawings.

10: Display screen

11: Left eye image

12: Right eye image

20: Composite stereoscopic images

30: Grating

40: The Viewer

41: Left eye

42: Right Eye

50: Infrared position detector

51: Frame circumference

52: Infrared sensor

53: Frame surround

60: Signal Processor

70: External device

80: Keyboard surface

81: Display button

90: Virtual key surface

91: Virtual keys

Figure 1 shows a schematic diagram of the assembly of the main components of the present case.

Figure 2 shows an exploded schematic view of the main components of the present case.

Figure 3 shows the connection diagram of the display screen, the infrared position detector and the signal processor of the present case.

FIG. 4 shows a schematic diagram of the application of the grating of the present application as a barrier grating.

FIG. 5 shows a schematic diagram of the application of the grating of the present case as a lenticular grating.

FIG. 6 is a schematic diagram showing the positional relationship between the left-eye image and the right-eye image of the synthetic stereoscopic image, the infrared position detector and the viewer's eyes.

With regard to the structure and composition of the present case, as well as the functions and advantages that can be produced, in conjunction with the drawings, a preferred embodiment of the present case is described in detail as follows.

Please refer to FIG. 1 to FIG. 6, showing the non-contact electronic input device of the present invention, including the following components:

A display screen 10 is used for displaying an image, and the image is a composite stereoscopic image 20 . The image displayed on the display screen 10 is divided into a left-eye image 11 and a right-eye image 12 (which are captured or drawn according to different viewing angles during shooting or drawing), and the left-eye image 11 and the right-eye image 12 are divided The composite stereoscopic image 20 is formed by post-interleaving interpolation. There is a grating 30 in front of the display screen 10 , and the grating 30 enables the left-eye image 11 and the right-eye image 12 in the composite stereoscopic image 20 to be projected to the viewer 40 respectively The left eye 41 and the right eye 42 of the viewer 40 respectively receive images from different viewing angles due to the relationship of aberrations, thereby forming a stereoscopic image in the mind.

The display screen 10 in this case can be an electronic display screen, such as an LCD display screen, an LED display screen, an OLED display screen or any other type of flat display screen. The display screen 10 may also be a non-electronic display screen. For example, the display screen 10 is a solid display frame containing a printed picture with the synthetic stereoscopic image 20 .

The grating 30 may be a barrier grating (Barrier Grids) shown in FIG. 4 or a lenticular grating (Lenticular Grids) shown in FIG. 5 .

When viewing the synthetic 3D image 20 from the viewing angle of the viewer 40 , some parts of the synthetic 3D image 20 will float out of the display screen 10 by a set distance L.

An infrared position detector 50 is a frame-shaped array detector, and a plurality of infrared sensors 52 (which can be divided into transmitters and receivers) are arranged around a frame 51, as shown in FIG. 2 and shown in Figure 3. When a shield passes through the frame enclosure 53 framed by the frame enclosure 51 , the infrared rays will be blocked due to the shielding relationship, and the position of the shield can be calculated by two-dimensional detection. The infrared position detector 50 is arranged at a distance in front of the display screen 10 (ie, one side of the near viewer 40 ), so as described above, if there is a shield passing through the frame framed by the frame 51 , the infrared position detector 50 senses the position of the shielding object.

A signal processor 60 is connected to the infrared position detector 50 for receiving the position of the shielding object detected by the infrared position detector 50 . The position of the shielding object is compared with the synthetic stereoscopic image 20 displayed on the display screen 10 , and it is determined that the object pointed by the position of the shielding object is the corresponding object in the synthetic stereoscopic image 20 . And according to the command contained in the corresponding object, the command action is sent to the next-level external device 70 to perform the relevant action.

Please refer to FIG. 1 to FIG. 3 , which show an application example of the present invention, wherein the composite stereoscopic image 20 is a keyboard surface 80 including a plurality of display buttons 81 , each of which has a specific function. After the stereoscopic imaging of this case, the plurality of display screen buttons 81 on the display screen 10 will float out of the display screen 10 by a distance L, and in the stereoscopic imaging, the plurality of display screens by a distance L of the display screen 10 will be raised The keys 81 form a virtual key surface 90 having a plurality of virtual keys 91 corresponding to the plurality of display keys 81 on the display 10 . The plane of the virtual key surface 90 is substantially aligned with the frame surrounding surface 53 of the frame surrounding 51 .

Therefore, when a user wants to perform a specific function by pressing a key, he can directly touch the virtual key 91 on the virtual key surface 90, and the infrared sensor 52 around the frame surrounding surface 53 is blocked by the blocking effect. , and the position of the virtual key 91 that the user touches on the virtual key surface 90 is detected, and the position signal is sent to the signal processor 60 . After the signal processor 60 calculates the corresponding key command, the This command is transmitted to the next-level external device 70 to perform related actions.

The main purpose of this case is to enable the user to operate the virtual button 91 without touching the physical button to achieve the operation function, so that the physical button will not be polluted or polluted by the physical button, so as to be infected with germs or infections sick. The practical application of this case is the keyboard that needs to be widely operated by many people, such as the keyboard of a bank ATM or the keyboard of an elevator.

In this case, the distance L between the virtual key surface 90 and the display screen 10 can be calculated, so as to arrange the infrared position detector 50 reasonably, so that the detection effect can be optimal. As shown in FIG. 6 , the distance between the pixel XR of the right-eye image 12 and the pixel XL of the left-eye image 11 is P, and the distance between the viewer 40 and the display screen 10 is D, the viewing The distance between the left eye 41 and the right eye 42 of the viewer 40 is B (generally set to 6.5±0.5 cm), then the distance Z between the viewer 40 and the virtual key surface 90 is:

Z=D/(1+P/B)

Therefore, the distance L between the virtual key surface 90 and the display screen 10 is:

L=D-Z=D-D/(1+P/B)

Therefore, the frame 51 of the infrared position detector 50 can be set at a position where the distance from the display screen 10 is L=D-Z.

The advantage of this case is that the virtual key is formed by the stereo imaging method, and the position where the user touches the virtual key is sensed by the infrared detection method to correspond to the key operation command, so the operator can operate the virtual key by simply operating the virtual key. To achieve the effect of operating the physical buttons, it is not necessary to touch and operate the physical buttons with hands, so the physical buttons will not be polluted or infected by the physical buttons.

To sum up, the humanized and considerate design of this case is quite in line with the actual needs. Compared with the conventional technology, the specific improvement of the existing deficiencies obviously has the advantages of breakthrough progress, and it does have the improvement of efficacy, and it is not easy to achieve. This case has not been disclosed or disclosed in the domestic and foreign literature and markets, and has complied with the provisions of the Patent Law.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the technical spirit of the present invention shall be included in the within the scope of the patent in this case.

10: Display screen

20: Composite stereoscopic images

30: Grating

50: Infrared position detector

80: Keyboard surface

81: Display button

90: Virtual key surface

91: Virtual keys

Claims (7)

A contactless electronic input device, comprising: A display screen is used for displaying an image, and the image is a composite stereoscopic image; the image displayed on the display screen is divided into a left-eye image and a right-eye image, and the left-eye image and the right-eye image are formed by interleaving and interpolation after division The synthetic stereoscopic image; wherein there is a grating in front of the display screen, and the grating is used to make the left-eye image and the right-eye image in the synthetic stereoscopic image project to the viewer's left eye and right eye respectively, so as to make viewing The left eye and right eye of the user respectively receive images from different perspectives due to the relationship of aberration, and form a stereoscopic image in the mind; Wherein, when viewing the synthetic 3D image from the viewer's perspective, some parts of the synthetic 3D image will float out of a set distance of the first display screen; An infrared position detector is a frame-shaped array detector, and a plurality of infrared sensors are arranged around the periphery of the frame; when a shield passes through the frame surface framed by the frame, Because of the shading relationship, the infrared rays will be blocked, and the position of the shading object can be calculated by the two-dimensional detection; wherein the infrared position detector is arranged in front of the display screen, that is, on the side of the near-viewer. A distance, when a shield passes through the frame surface framed by the frame, the infrared position detector senses the position of the shield; A signal processor is connected to the infrared position detector for receiving the position of the shielding object detected by the infrared position detector; comparing the position of the shielding object with the synthetic stereoscopic image displayed on the display screen to determine the position of the shielding object The position of the shield points to the corresponding object in the composite stereoscopic image; and according to the command contained in the corresponding object, the command action is sent to the next-level external device to perform the relevant action. The non-contact electronic input device as described in claim 1, wherein the display screen for the electronic display. The non-contact electronic input device as described in claim 1, wherein the display screen is a non-electronic display screen, which is a physical display frame containing a printed picture with the composite stereoscopic image. The non-contact electronic input device as described in claim 1, wherein the grating is a barrier grating (Barrier Grids). The non-contact electronic input device as described in claim 1, wherein the grating is a lenticular grating (Lenticular Grids). The non-contact electronic input device as described in claim 1, wherein the composite stereoscopic image is a keyboard surface, which includes a plurality of display buttons, and each of the display buttons has a specific function; after stereoscopic imaging, the The plurality of display buttons on the display screen will float out of the display screen for a distance L to form a virtual button surface, which has a plurality of virtual buttons corresponding to the plurality of display buttons on the display screen; and the virtual button surface The plane of the key face is substantially aligned with the bezel surface of the bezel. The non-contact electronic input device as described in item 6 of the claimed scope, wherein the distance between the pixels of the right-eye image and the pixels of the left-eye image is P, and the distance between the viewer and the display screen is D, the distance between the viewer's left eye and right eye is B, then the distance between the viewer and the virtual key surface Z=D/(1+P/B); therefore, the virtual key surface The distance from the display screen is L=DZ=DD/(1+P/B); the frame of the infrared position detector is set at a position where the distance from the display screen is L=DZ.

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