Anti-shooting device

Abstract

The utility model belongs to the technical field of display, and particularly provides an anti-shooting device which comprises a display module and a light guide assembly, the light guide assembly is connected with the display module, and the light guide assembly is used for obtaining infrared light from an external light source and guiding the infrared light to the display module so as to form interference pixel points on the display module. Therefore, imaging of the camera equipment is interfered under the condition that human eyes are not influenced to watch the content displayed by the display module, so that other people are prevented from acquiring and diffusing the content displayed by the display module.

Description

Technical Field

[0001] This application belongs to the technical field of display devices, and particularly relates to an anti-photographing device. Background Art

[0002] In some places, such as classrooms, lecture halls, etc., users mostly display their labor achievements to others through a display screen.

[0003] However, these labor achievements may involve content that needs to be kept confidential or content that has not been made public yet, and there is an increasing need for copyright protection to prevent others from obtaining the content through shooting or video recording and spreading it. Utility Model Content

[0004] The purpose of this application is to provide an anti-photographing device, aiming to solve the technical problem that the content of the display screen in the prior art is easily obtained by others through shooting or video recording.

[0005] To achieve the above purpose, the technical solution adopted in this application is: an anti-photographing device, including a light guide component and a display module, the light guide component is connected to the display module, and the light guide component is used to obtain infrared light from an external light source and export the infrared light to the display module to form interference pixel points on the display module.

[0006] In one embodiment, the anti-photographing device includes an infrared backlight board, the infrared backlight board is arranged on the back of the display module, and the infrared backlight board is used to emit the infrared light and irradiate the infrared light onto the display module.

[0007] In one embodiment, infrared reflective pigment is provided in the blank area on the front of the display module.

[0008] In one embodiment, the anti-photographing device includes an infrared light source, and the infrared light source is used to emit the infrared light and irradiate the infrared light onto the front of the display module.

[0009] In one embodiment, the display module includes a plurality of color pixel point groups and a plurality of infrared pixel point groups, and the infrared pixel point groups are arranged between every two adjacent color pixel point groups.

[0010] In one embodiment, the display module includes a plurality of color pixel points, and the color pixel points include blue light beads, green light beads, red light beads and infrared light beads.

[0011] In one embodiment, the infrared light beads are adjacent to the green light beads and the red light beads.

[0012] In one embodiment, the wavelength of the infrared light is in the range of [740nm - 980nm].

[0013] In one embodiment, the optical waveguide component is an optical fiber splitter.

[0014] In one embodiment, the display module is an LED display module.

[0015] Compared with the prior art, the beneficial effects of the anti - shooting device provided by this application are as follows:

[0016] The anti - shooting device of this application connects the optical waveguide component with the display module. The optical waveguide component is used to obtain infrared light from an external light source and export the infrared light to the display module to form interference pixel points on the display module. It can interfere with the imaging of a camera device without affecting the content displayed on the display module that can be viewed by the human eye, so as to prevent others from obtaining and spreading the content displayed on the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 The first schematic diagram of the anti - shooting device provided by the embodiment of this application;

[0019] Figure 2 The second schematic diagram of the anti - shooting device provided by the embodiment of this application;

[0020] Figure 3 The third schematic diagram of the anti - shooting device provided by the embodiment of this application;

[0021] Figure 4 The first schematic diagram of the display module provided by the embodiment of this application;

[0022] Figure 5 The second schematic diagram of the display module provided by the embodiment of this application;

[0023] Figure 6 The schematic diagram of the pixel point provided by the embodiment of this application.

[0024] Among them, the reference numerals in the drawings are as follows:

[0025] 10. External light source; 20. Optical waveguide component; 30. Display module; 40. Infrared backlight board; 50. Infrared light source. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0027] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0029] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] Analyzing the spectral characteristics of a camera device, the visible light transmittance at a wavelength of 550 nm of some camera devices is 98%, the infrared light transmittance at a wavelength of 850 nm is 93.9%, and the infrared light transmittance at a wavelength of 940 nm is 89.9%. The visible light transmittance at a wavelength of 550 nm of some camera devices is 95.9%, the infrared light transmittance at a wavelength of 850 nm is 93.2%, and the infrared light transmittance at a wavelength of 940 nm is 91.2%. The visible light transmittance at a wavelength of 550 nm of some camera devices is 92.7%, the infrared light transmittance at a wavelength of 850 nm is 93.4%, and the infrared light transmittance at a wavelength of 940 nm is 93.6%. The visible light transmittance at a wavelength of 550 nm of some camera devices is 92%, the infrared light transmittance at a wavelength of 850 nm is 41.8%, and the infrared light transmittance at a wavelength of 940 nm is 5.8%.

[0031] It can be known that the transmittance of the imaging device for visible light with a wavelength of 550 nm can be greater than 90%, the transmittance for infrared light with a wavelength of 850 nm can be greater than 40%, and the transmittance for infrared light with a wavelength of 940 nm can be greater than 5%.

[0032] The wavelength range of the visible spectrum of the human eye is from 380 nm to 730 nm, and the human eye has a weak perception of light with a wavelength greater than 730 nm.

[0033] It can be known that the spectral reception range of a general imaging device is greater than the spectral range of visible light acceptable to the human eye. Based on this, an embodiment of the present application provides an anti - shooting device. By using infrared light on the display module to form interference pixel points on the display module, it can interfere with the imaging of the imaging device and ensure that the content displayed on the display module is not affected when viewed by the human eye.

[0034] Please refer to Figure 1 , Figure 1 which is the first schematic diagram of the anti - shooting device provided by the embodiment of the present application. As Figure 1 shown, an embodiment of the present application provides an anti - shooting device. The anti - shooting device of this embodiment includes an optical waveguide component 20 and a display module 30. The optical waveguide component 20 is connected to the display module 30. The optical waveguide component 20 is used to obtain infrared light from an external light source 10 and export the infrared light to the display module 30 to form interference pixel points on the display module 30.

[0035] In application, the optical waveguide component 20 includes a plurality of optical devices, and the other ends of the optical devices are connected to the display module 30. The optical waveguide component 20 obtains infrared light from an external light source and exports the infrared light to the display module 30 through each optical device, so that the display module 30 emits infrared light to form interference pixel points.

[0036] Among them, the optical waveguide component 20 can be arranged on the back, above, below, left or right of the display module 30, as long as it does not prevent others from viewing the content displayed on the display module.

[0037] When the display module 30 is not a transparent screen, holes are opened in the printed circuit board of the display module 30, and the other ends of the optical devices are arranged in the holes of the display module 30.

[0038] When the display module 30 is a transparent screen, there is no need to open holes in the display module 30, and the other ends of the optical devices are directly connected to the display module 30.

[0039] In a possible implementation manner, the optical waveguide component 20 is an optical fiber splitter.

[0040] In this embodiment, by connecting the light guide component to the display module, the light guide component is used to obtain infrared light from an external light source and export the infrared light to the display module to form interference pixel points in the display module, so as to interfere with the imaging of the camera device without affecting the content displayed on the display module that can be viewed by the human eye, making the camera device overexposed or the captured image blurred, so as to prevent others from obtaining and spreading the content displayed on the display module.

[0041] Please refer to Figure 2 , Figure 2 which is the second schematic diagram of the anti-photographing device provided by the embodiment of the present application. As Figure 2 shown, the embodiment of the present application provides an anti-photographing device. The anti-photographing device of this embodiment includes an infrared backlight panel 40, and the infrared backlight panel 40 is arranged on the back of the display module 30. The infrared backlight panel 40 is used to emit infrared light and irradiate the infrared light onto the display module 30.

[0042] In application, the infrared backlight panel 40 irradiates the infrared light onto the back of the display module 30 so that the display module 30 emits infrared light to form interference pixel points.

[0043] When the display module 30 is not a transparent screen, holes are opened in the printed circuit board of the display module 30 so that the infrared light emitted by the infrared backlight panel 40 can pass through the display module 30 and be emitted outward.

[0044] When the display module 30 is a transparent screen, there is no need to open holes in the display module 30, and the infrared light emitted by the infrared backlight panel 40 directly passes through the display module 30.

[0045] In a possible implementation manner, the infrared backlight panel 40 can be an infrared LED (Light Emitting Diode), or can be an infrared laser source.

[0046] This embodiment includes an infrared backlight panel arranged on the back of the display module. The infrared backlight panel is used to emit infrared light and irradiate the infrared light onto the display module to interfere with the imaging of the electronic device, making the camera device overexposed or the captured image blurred, so as to prevent others from obtaining and spreading the content displayed on the display module.

[0047] Please refer to Figure 3 , Figure 3 which is the third schematic diagram of the anti-photographing device provided by the embodiment of the present application. As Figure 3 shown, this embodiment provides an anti-photographing device. The anti-photographing device of this embodiment includes: infrared reflective pigments (not shown in the figure) are arranged in the blank area on the front of the display module 30. The infrared reflective pigments absorb visible light and reflect infrared light.

[0048] In an application, an infrared reflective pigment is applied to the blank area on the front surface of the display module 30. The infrared reflective pigment reflects infrared light to cause the imaging device to be exposed or the captured image to be blurred.

[0049] The anti-photographing device in this embodiment further includes an infrared light source 50. The infrared light source 50 is used to emit infrared light and irradiate the infrared light onto the front surface of the display module 30.

[0050] In an application, the infrared light source 50 faces the front surface of the display module 30 and irradiates the emitted infrared light onto the front surface of the display module 30.

[0051] Among them, the infrared light source 50 can be mounted on the display module 30 or can be an external light source.

[0052] In a possible implementation manner, the infrared light source 50 can be an infrared searchlight, an infrared LED, or an infrared laser source.

[0053] The anti-photographing device of this embodiment reflects the infrared light emitted by the infrared light source through the infrared reflective pigment, so that more infrared light is reflected, increasing the degree of blurring of the imaging device exposure or the captured image.

[0054] For the device for emitting infrared light in the above embodiment, its output power can be controlled by an algorithm to achieve suppressing visible light display and saving energy.

[0055] Specifically, according to the situation of the color pixel dots in the display module, its output power can be determined, and the control device emits infrared light according to the output power.

[0056] It can also control the light output by the algorithm to form a special image or transmit encrypted information.

[0057] Specifically, according to the environmental situation where the display module is located or the content displayed by the display module, a corresponding special image can be determined, and the control device emits light according to the special image.

[0058] In one embodiment, this embodiment provides an anti-photographing device. The display module in the anti-photographing device of this embodiment includes a plurality of color pixel dot groups and a plurality of infrared pixel dot groups, and an infrared pixel dot group is arranged between every two adjacent color pixel dot groups.

[0059] In an application, the display module is improved, and at least one infrared pixel dot group can be arranged between every two adjacent color pixel dot groups.

[0060] In a possible implementation, the color pixel group includes at least two color pixels, and the infrared pixel group includes at least one infrared pixel. An infrared pixel group is arranged between every two adjacent color pixel groups. The number of infrared pixels included in the infrared pixel group may be the same as or different from the number of color pixels included in the color pixel group.

[0061] Please refer to Figure 4 , Figure 4 which is the first schematic diagram of the display module provided by the embodiment of the present application. As Figure 4 shown, multiple color pixels form a column of color pixel groups, and multiple infrared pixels form a column of infrared pixel groups. A column of infrared pixel groups is arranged between every two adjacent color pixel groups.

[0062] Please refer to Figure 5 , Figure 5 which is the second schematic diagram of the display module provided by the embodiment of the present application. As Figure 5 shown, multiple color pixels form a row of color pixel groups, and multiple infrared pixels form a row of infrared pixel groups. A row of infrared pixel groups is arranged between every two adjacent color pixel groups.

[0063] In this embodiment, the control of the color pixels and the infrared pixels is independent of each other. It can be controlled by an external controller, and the effects that the content displayed by the display module can be photographed, completely cannot be photographed, or have local mosaics can be achieved.

[0064] In this embodiment, by arranging infrared pixels between every two adjacent color pixels, the display module emits infrared light to form interfering pixels, so that the imaging device is exposed or the captured image is blurred.

[0065] In one embodiment, this embodiment provides an anti-photographing device. The display module in the anti-photographing device of this embodiment includes multiple color pixels, and the color pixels include blue light beads, green light beads, red light beads, and infrared light beads.

[0066] In application, the pixel is improved, and an infrared light bead is added to the color pixel.

[0067] In a possible implementation, the infrared light bead is adjacent to the green light bead and the red light bead.

[0068] Please refer to Figure 6 , Figure 6 which is the schematic diagram of the pixel provided by the embodiment of the present application. As Figure 6 shown, the infrared light bead is arranged on the left of the red light bead, the infrared light bead is arranged above the green light bead, the blue light bead is arranged below the red light bead, and the blue light bead is arranged on the right of the green light bead.

[0069] In this embodiment, each pixel is independent and can be controlled by an external controller, enabling the content displayed on the display module to be photographed, completely non - photographable, or have a partial mosaic effect.

[0070] In this embodiment, by adding infrared light beads to the color pixels, the display module emits infrared light, forming interfering pixels to cause the imaging device to overexpose or the captured image to be blurred.

[0071] In one embodiment, the spectral reception range of a general imaging device is greater than the spectral range of visible light acceptable to the human eye, and the human eye has a weak perception of light with a wavelength greater than 730 nm. The wavelength of the infrared light is set in the range of [740 nm - 980 nm].

[0072] In applications, the wavelength of the infrared light can be set according to the application scenario requirements, or the wavelength of the infrared light can be set to a band within the spectral range greater than 730 nm.

[0073] In one embodiment, the display module in the anti - photographing device of this embodiment is an LED display module.

[0074] In one embodiment, the color pixels of the LED display module are color LEDs, and the infrared pixels are red LEDs.

[0075] In one embodiment, the light beads of the LED display module are LED beads.

[0076] Among them, an LED is a solid - state semiconductor device that can directly convert electricity into light. The heart of an LED is a semiconductor wafer. One end of the wafer is attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, so that the entire wafer is encapsulated by epoxy resin. The semiconductor wafer consists of two parts. One part is a P - type semiconductor where holes dominate, and the other part is an N - type semiconductor where electrons dominate.

[0077] When current acts on the wafer through a wire, electrons will be pushed into the P region. The injected electrons in the P region recombine with the holes. The electrons transition from a high energy level to a low energy level, releasing the excess energy in the form of emitted photons, generating electroluminescence, and thus directly converting electrical energy into light energy.

[0078] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-filming device, characterized in that: It includes a light guide component and a display module. The light guide component is connected to the display module. The light guide component is used to obtain infrared light from an external light source and export the infrared light to the display module to form interference pixels in the display module.

2. The device according to claim 1, characterized in that It comprises an infrared backlight plate, which is arranged on the back of the display module and is used for emitting the infrared light and irradiating the infrared light onto the display module.

3. The device according to claim 1, characterized in that Infrared reflective pigment is arranged in the blank area on the front side of the display module.

4. The device according to claim 2, characterized in that It includes an infrared light source, which is used to emit the infrared light and irradiate the infrared light to the front side of the display module.

5. The device according to claim 1, characterized in that The display module includes a plurality of color pixel groups and a plurality of infrared pixel groups, and the infrared pixel groups are arranged between each adjacent color pixel group.

6. The device according to claim 1, characterized in that The display module includes a plurality of color pixels, and the color pixels include blue light beads, green light beads, red light beads and infrared light beads.

7. The device according to claim 6, characterized in that The infrared light bead is adjacent to the green light bead and the red light bead.

8. The device according to any one of claims 1 to 6, characterized in that The wavelength of the infrared light is [740nm-980nm].

9. The device according to claim 1, characterized in that The optical fiber component is a fiber optic splitter.

10. The device according to claim 8, characterized in that The display module is an LED display module.

Images