TWI728872B - A screen apparatus with screen anti-shooting, hidden, and eye healthcare function - Google Patents

Abstract

A screen apparatus with screen anti-shooting, hidden, and eye healthcare function. Interference patterns is produced to protect the screen, and avoid leakage of relevant information, and has a light source of eye healthcare.

Description

It has the functions of screen anti-photographing and concealed eye care Screen device

The present invention is a screen device, in particular a screen device with the functions of screen anti-photographing and secretive health care.

Under the tremendous influence of globalization and the widespread use of digital technology, the risk of leaking or infringing on trade secrets has increased significantly in countries around the world. Once trade secrets are infringed, they cannot be recovered. Not only will they suffer heavy economic losses, but also the country’s industry. Competitiveness will also endanger the country’s economic lifeline. At present, countries in the world do their utmost to protect related trade secrets. “Commercial trade secrets” have a huge impact on the trade market and are the most worthy of protection among them.

The so-called "commercial business secrets" mainly include enterprise personnel management, commodity prices, customer lists, transaction reserve prices, purchase costs, distribution locations, cost analysis, financial operations and other information related to business management, and the aforementioned information Most of them are secret and cannot be easily known from public channels, so And need higher protection means.

In recent years, due to the high level of competition in the technology industry, in addition to facing high-paying job-hopping in the technology industry, it has also led to those interested in trying their best to steal the company’s "commercial business secrets" and bring the original company’s "commercial business secrets" to The new company or bring it out for use. In the various theft processes, in addition to stealing company business secrets from company computers, personal mobile phones, and flash drives, it is also the most common and the easiest and fastest way to directly take pictures of computer screens. At this time, "commercial "Trade Secrets" are also lost. As evidenced by actual court cases, some multinational technology companies do have former employees who used their mobile phones to secretly take pictures of the original company’s computer screens to achieve the illegal purpose of stealing the company’s "commercial business secrets."

At present, it can be used as a camera for sneak shots. It is more commonly used to capture computer screen images with a camera, or to record computer screen images with a camera, or it can be simply done by shooting with a mobile phone, so there is no active and effective method. The solution or deterrent method to prevent the camera lens from taking pictures of the computer screen.

In view of the foregoing description, the relevant industry does need a means to prevent the camera from taking pictures of computer screens, and the relevant industry is looking forward to providing effective solutions to prevent "commercial business secrets" from taking pictures of computer screens.

The present invention is a function of anti-photographing on the screen and secret health care of the eyes The screen device of energy, including luminous body, shading material, and liquid crystal panel. The light-emitting body can be used as a projection light source and has a red and near-infrared light multi-band eye activation device. The shading material has more than two slits and is projected to the liquid crystal panel through the slit light source to generate an interference pattern to form a screen with a screen A screen device with anti-photographing and concealed eye care functions.

The present invention is a screen device with the functions of screen anti-photographing and concealed eye protection, which includes a luminous body, a shading material, and a liquid crystal panel. The luminous body can be used as a projection light source and has a red light and near-infrared light multi-band eye activation device. The shading material has a single slit and can be provided as a slit light source. The slit light source is then projected to the liquid crystal panel. Produce interference patterns to form a screen with hidden health care functions.

The present invention is a screen device with the functions of screen anti-photographing and concealed eye care, wherein the light-shielding material can be the chip itself, or the spacing between two chips is blacked out, or Made of other opaque materials.

The present invention has the beneficial effects of a screen device with the functions of screen anti-photographing and concealed health care. It is arranged through the diffractive light and dark strips behind the slit to prevent the mobile phone or camera, or the camera from shooting/recording without anti-striping. (anti-banding) Decode authorized screen images.

The advantages of a screen device with functions of anti-photographing and concealed eye protection of the present invention are made of a dedicated chip itself, the spacing between two chips, or other opaque materials. Light transmission and diffraction narrow Seam, so as to produce a diffractive light and dark stripe arrangement to prevent the screen image from being secretly photographed and to avoid related data leakage.

The present invention has the advantages of a screen device with functions of anti-photographing and health care of the screen, wherein the light source is a red light and near-infrared light-emitting diode, and the red and near-infrared light can activate the retina and optic nerve of the eye.

The present invention has the advantages of a screen device with the functions of anti-photographing on the screen and protecting the eyes. The light source for anti-photographing and health care, that is, the light source is 670 nanometers (nm) ± 50 nanometers, and the light source is 780 nanometers ± In the 60-nanometer band, the operating frequency of the light source must avoid 50 Hz to 60 Hz, so that it will not be compensated by the anti-stripe shape of the mobile phone, and a diffractive light and dark stripe arrangement is produced, so it has a health care function for the eyes.

100: Screen device with screen anti-photographing and secret eye care functions

101: luminous body

102: Shading material

103: LCD panel

104: Interference pattern

200: A screen device with screen anti-photographing and secret eye care functions

201: luminous body

202: Shading material

203: LCD panel

204: Interference pattern

The foregoing and many other advantages of the present invention will be more clearly presented in the following detailed description of a preferred embodiment with reference to the drawings, which are as follows:

Figure 1 shows a screen device of the present invention with the functions of screen anti-photographing and secret care of the eyes;

Figure 2 shows a screen device of the present invention with functions of screen anti-photographing and secret eye protection;

Figure 3A shows the original icon displayed on the traditional original screen; and

Figure 3B shows that the present invention has the functions of screen anti-photographing and concealed eye care. The interference icon of the screen device.

Hereinafter, please refer to the description and description of the accompanying drawings to describe the embodiments of the present invention. In the drawings, the same component symbols represent the same components, and for clarity, the size or thickness of the components may be exaggerated.

As shown in FIG. 1, a screen device 100 with functions of screen anti-photographing and eye care of the present invention includes a luminous body 101, a light-shielding material 102, and a liquid crystal panel 103.

Still as shown in Figure 1 of the present invention is a screen device 100 with screen anti-photographing and eye health functions, wherein the light-emitting body 101 can be a light-emitting diode (LED) or a laser light (LASER), which provides a projection screen. The function of the light source.

As shown in Fig. 1, a screen device 100 of the present invention with the functions of screen anti-photographing and eye care, wherein the light-shielding material 102 has a light-shielding function and has two slits, and the two slits allow the light-emitting body 101 to be The emitted light passes through to produce a physical interference phenomenon to produce a slit light source, and the light-shielding material 102 can be made of a polymer material such as silicone rubber.

As shown in Figure 1, a screen device 100 with the functions of screen anti-photographing and eye care of the present invention has the function of displaying the screen. The slit light source is projected to the liquid crystal panel 103 to generate an interference pattern 104, thereby forming a privacy Screen device with health care function. The light-shielding material 102 can be installed between the luminous body 101 and the liquid crystal panel 103.

As shown in Figure 1, a screen device 100 with functions of screen anti-photographing and eye care of the present invention, wherein the coherence length is L, and the method of obtaining L (coherence length) is as follows:

c: speed of light

：介質的折射率

: The refractive index of the medium

△ ^f : the bandwidth of the wave source

As shown in Fig. 1 of the present invention, a screen device 100 with screen anti-photographing and eye-care functions, in which the distance from the light-shielding material 102 to the liquid crystal panel 103, is obtained as follows:

r: the distance from the light-shielding material 102 to the liquid crystal panel 103

λ: The wavelength of the luminous body 101, such as the wavelength of a light emitting diode (LED)

d: the distance between the two slits

△y ₁ ：The offset distance of the first-order bright line offset

At this time, the luminous body 101 can be a light-emitting diode, or other light sources, the light source of the luminous body 101 is 670 nanometers (nm) ± 50 nanometers band, and the light source is 780 nanometers ± 60 nanometers band. At this time, the operating frequency of the light source needs to avoid 50 Hz to 60 Hz so as not to be compensated by the anti-banding of the mobile phone. The operating frequency can be operated with direct current (DC), or Need to be greater than 60 Hz.

As shown in FIG. 2, a screen device 200 with the functions of screen anti-photographing and privacy health care of the present invention includes a luminous body 201, a light-shielding material 202, and a liquid crystal panel 203.

As shown in Figure 2, the present invention is a screen device 200 with functions of screen anti-photographing and concealed eye care, wherein the light-emitting body 201 can be a light-emitting diode (LED) or other light source, which can provide projection The function of the light source, and its operating frequency must be greater than 60 Hz.

As shown in Figure 2, a screen device 200 of the present invention has the functions of screen anti-photographing and concealed eye care, wherein the light-shielding material 202 has a light-shielding function and has a single slit, and the single slit can allow the luminous body 201 The emitted light passes through to produce a physical interference phenomenon, and a slit light source is generated. The light-shielding material 202 can be made of a polymer material such as silicone rubber.

As shown in Figure 2, a screen device 200 of the present invention with the functions of screen anti-photographing and concealed eye care. The liquid crystal panel 203 has the function of displaying the screen. The slit light source is projected onto the liquid crystal panel 203 to generate an interference pattern 204 , So as to form a screen device with secret health care function. The light-shielding material 202 can be installed between the luminous body 201 and the liquid crystal panel 203.

As shown in Figure 3A, it is the original icon displayed on the traditional original screen, which is a normal screen.

Figure 3B shows the interference diagram displayed by the screen device 200 with the functions of screen anti-photographing and concealed eye care of the present invention after the slit interference.

Therefore, when the eyes are looking at the screen, due to the principle of persistence of vision, you will see the icon shown in Figure 3A, that is, you can see the icon displayed on the original screen, which is a normal screen; but when you see it like When a screen device of the present invention has the functions of screen anti-photographing and concealed eye care, you will see the interference pattern displayed as shown in Figure 3B, that is, after the interference of the slits, the diffraction pattern is generated in the fluorescent light. On the curtain. That is, when the screen is shot with a mobile phone, a banding pattern will be generated, which makes it impossible to take in confidential information at all, and achieves the effect of confidentiality.

Generally, the charge-coupled device (CCD) system installed in mobile phones can sense light, and the current anti-banding function of mobile phones is also effective for flicker frequencies of 50 Hz and 60 Hz (that is, mobile phones). It can be compensated, even if the screen is taken, the phone will not display the strips). Moreover, the present invention can avoid the 50 Hz (Hz)-60 Hz anti-retro stripe in the band around 670nm±50nm for secret health care and the band around 780nm±60nm. With (anti-banding) compensation operating frequency, at this time, the operating frequency of the light source can be operated with direct current (DC) or greater than 60 Hz, in other words, when the operating frequency of the (projection) light source of the luminous body When it is greater than 60 Hz, a strip can be produced, which has the effect of screen anti-shooting and eye care.

The present invention has the advantages of a screen device with functions of anti-photographing on the screen and protecting eyes in secret. The light source (projection) of the luminous body for anti-photographing and health care is 670nm±50nm waveband, and the light source is 780nm± The 60-nanometer band, and the operating frequency of the light source must avoid 50 Hz to 60 Hz, so it will not be affected by mobile phones. The anti-stripe is compensated, and the diffractive light and dark strips are arranged, which even has the effects of screen anti-shooting and eye care.

Since the general human eyes can perceive the flickering of light sources with a flicker frequency below 50 Hz, the shutter of a mobile phone (CCD) can respond to flicker frequencies higher than 80 Hz. Therefore, when using the control red (R) color, green The brightness of the three primary colors (G) and blue (B), as well as the light emitting diode (LED) with switching time, can cause the mobile phone to produce banding when shooting, that is, it produces as if it is winding. In the case of shooting graphics, the screen can be protected from unauthorized shooting by others.

The present invention is a screen device with screen anti-photographing and concealed eye care functions. It uses slit light sources to prevent cameras and cameras from capturing/recording unauthorized screen images, especially flashing its liquid crystal panels with special slit waveforms. Therefore, the screen image is protected from leakage of related data, and when the operating frequency of the projection light source of the present invention is greater than 60 Hz, the eye health function can be produced.

The present invention is a screen device with the functions of screen anti-photographing and concealed health care for the eyes. It is based on the principle of "coherence" in physics. The so-called coherence refers to in order to produce significant interference phenomena. Required properties. The coherence describes the correlation properties of a certain internal physical quantity between a wave and itself, and between a wave and other waves. When two waves interfere with each other, because of the difference in phase, it will cause constructive or destructive interference. Therefore, when two waves of a double slit are generated, it is called interference, and more than two waves are generated. It is diffraction (diffraction).

Usually in physics, the coherence length (coherence length) represents the distance that coherent waves (such as electromagnetic waves, light is also a kind of electromagnetic waves) maintain a certain degree of coherence to propagate, which is an important concept in the field of holographic photography and communication engineering. . When the distance between the coherent wave paths is smaller than the coherence length, the interference phenomenon can be clearly observed, and the longer the coherence length of the wave, the closer to the perfect sine wave.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the patent application of the present invention; all other equivalent changes or modifications completed without departing from the spirit of the present invention should be included in the following Within the scope of the patent application.

100: Screen device with screen anti-photographing and secret eye care functions

101: luminous body

102: Shading material

103: LCD panel

104: Interference pattern

Claims (3)

A screen device with the functions of screen anti-photographing and concealed health care, at least comprising: a luminous body having the function of providing a light source for projection, wherein the light-emitting system emits laser light; and a shading material, wherein the shading material has a shading function and There are two slits to generate a slit light source; and a liquid crystal panel, the liquid crystal panel has a display screen function, wherein the light-shielding material is installed between the light-emitting body and the liquid crystal panel, and the light-shielding material is to The distance of the liquid crystal panel includes: △y ₁ =rλ/d, r: the distance from the light-shielding material to the liquid crystal panel, λ: the wavelength of the luminous body, d: the distance between the two slits, △y ₁ : the first-order bright lines The offset distance of the offset, when the slit light source is projected to the liquid crystal panel, an interference pattern is generated, thereby forming a screen device with a hidden health care function. For the device described in item 1 of the scope of patent application, the light source is in the 670nm±50nm waveband, or the light source is in the 780nm±60nm waveband, and the operating frequency of the light source should avoid 50 Hz To 60 Hz. For the device described in item 1 of the scope of patent application, the operating frequency of the light source can be direct current or greater than 60 Hz for operation.

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