TWI579489B - Yellow backlight system and method thereof - Google Patents

Description

Yellow backlight system and yellow backlight method

The invention relates to a yellow backlight system and a yellow backlight method, which are suitable for improving the influence of blue light on human visual cells in an environment with a display device.

Nowadays, due to the popularity of technology products such as computers and smart phones, the use of these technology products with display screens is getting longer and longer, and under the long-term viewing of the screen, it also causes more and more damage to the eyes.

Blu-ray is ubiquitous in lighting equipment and computer screen rays in life. The blue light that can usually be seen is the most visible part of the visible light closest to ultraviolet light. The blue light wavelength is between 400 and 500 nm. It is easy to cause eye damage when exposed to blue light, especially causing macular lesions.

If the human visual cells are chronically exposed to blue light, the pigment molecules in the cells will promote the toxic reaction and cause damage to the cells. This macular lesion is the main cause of blindness.

In addition, today's technology products such as tablets, TVs, and smart phones usually have high-resolution screens, and the high-intensity blue light emitted by high-resolution screens is more likely to cause damage to visual cells.

At present, it has been proposed to wear anti-blue lens glasses to weaken the blue light entering the eye, and the manner is divided into two types, one is a dye-type filtered blue lens, and the other is a surface-coated anti-blue lens.

At present, the ratio of blue-light lens is generally higher, and the anti-blue light effect of the filtered blue lens is better than that of the coated anti-blue lens, because the effect of filtering the blue lens is better, so it is now used by most people.

The above solutions require additional lenses, which are already worn by myopia. This method is less convenient for users of glasses. In addition, wearing a filtered blue lens for a long time may cause misjudgment in the judgment of the color of the object, and even cause misjudgment of the traffic sign color.

In view of the above disadvantages of the prior art, one of the main objects of the present invention is to provide a yellow backlight system and a yellow backlight method for reducing the damage of blue light to human visual cells.

To achieve the above and other objects, the present invention provides a yellow backlight system including a display device that emits light including a blue light, and at least one yellow light source that emits a yellow light to a periphery of the display device in a specific manner. To neutralize the intensity of the blue light.

Preferably, the yellow light may have a wavelength between 570 nm and 590 nm.

Moreover, preferably, the particular manner may be a combination of reflection, refraction, or reflection and refraction.

Preferably, the at least one yellow light source can be disposed on the display device and at one of the surrounding of the display device.

In addition, the yellow backlight system of the present invention further includes at least one light transmissive plate, which can be disposed on the display device, and the at least one yellow light source can be disposed on the at least one light transmissive plate.

The present invention further provides a yellow backlight method, comprising: emitting light including a blue light by a display device, and emitting a yellow light to a periphery of the display device in a specific manner by at least one yellow light source to neutralize The intensity of the blue light is pinned.

Compared with the prior art, the invention does not need to additionally filter the blue light lens, and can reduce the damage of the blue light to the human visual cells. For the user who has already worn the myopia glasses, it does not need another Re-matching a new filter blue lens adds unnecessary cost. In addition, the method of the present invention does not cause the problem of misjudging the color judgment in the prior art when the filter blue lens is worn for a long time.

100‧‧‧ display device

200‧‧‧Yellow light source

300‧‧‧ wall

400‧‧‧light board

S11~S12‧‧‧Steps

1 is a flow chart of a yellow backlight method according to an embodiment of the present invention; and FIG. 2 is a side view of a yellow backlight system according to an embodiment of the present invention; 3 is a rear view of a yellow backlight system according to an embodiment of the present invention; FIG. 4 is a rear view of a yellow backlight system according to an embodiment of the present invention; and FIG. 5 is a yellow backlight according to an embodiment of the present invention. Front view of the system.

Hereinafter, a yellow backlight system and a yellow backlight method will be described in accordance with an embodiment of the present invention.

1 is a flow chart of a yellow backlight method in accordance with an embodiment of the present invention.

As shown in Fig. 1, in step S11, light containing a blue light is emitted by a display device. In an embodiment, the display device can be a product with a display screen such as a notebook computer, a tablet computer, a desktop computer, a smart phone, or a television. In an embodiment of the invention, the blue light is visible light having a wavelength between 400 nm and 500 nm.

In step S12, yellow light is emitted to the periphery of the display device in a specific manner by at least one yellow light source to neutralize the intensity of the blue light. In an embodiment, the specific manner described above may be a combination of reflection, refraction, reflection and refraction, or direct illumination. In an embodiment of the invention, the yellow light is visible light having a wavelength of 570 nm to 590 nm. In an embodiment of the invention, the yellow light source may be any light source that emits yellow light, such as an incandescent lamp, a fluorescent tube, an LED lamp, a cold cathode tube, a gas discharge lamp, or the like. By emitting yellow light in the specific manner described above, the blue light emitted from the display device is neutralized and the intensity of the blue light is lowered to protect the visual cells of the human body from being damaged by strong blue light.

2 is a side view of a yellow backlight system in accordance with an embodiment of the present invention.

In FIG. 2, the display device 100 emits light including blue light, and then the yellow light source 200 neutralizes blue light emitted from the display device 100 by emitting yellow light. Among them, the yellow light source 200 is placed between the rear of the display device 100 and the wall 300. In this embodiment, the yellow light emitted by the yellow light source 200 is irradiated onto the rear wall 300, and the yellow light is reflected to the periphery of the display device 100 via the wall surface to neutralize the blue light emitted by the display device 100, so that The intensity of blue light entering the human eye is weakened to reduce the damage of blue light to human visual cells. In this embodiment, the display device 100 can be a product with a display screen such as a notebook computer, a tablet computer, a desktop computer, a smart phone, or a television. Moreover, in this embodiment, the yellow light source 200 can be an incandescent lamp, Fluorescent tubes, LED lamps, cold cathode tubes, gas discharge lamps, etc. Any light source that emits yellow light.

Figure 3 is a rear elevational view of a yellow backlight system in accordance with an embodiment of the present invention.

In Fig. 3, a plurality of yellow light sources 200 are mounted on the back surface of the display device 100. In this embodiment, four yellow light sources 200 are mounted on the display device 100, but are not limited thereto. The yellow light source 200 emits a soft light from the periphery of the display device 100 by emitting yellow light from the rear of the display device 100. The yellow light generated by the yellow light source 200 is irradiated to the periphery and the front of the display device 100 through reflection to neutralize the blue light generated by the display device 100, so that the intensity of the blue light entering the human eye is weakened, thereby reducing the blue light to the human body. Visual cell damage.

Figure 4 is a rear elevational view of a yellow backlight system in accordance with an embodiment of the present invention.

In FIG. 4, two light-transmitting plates 400 are disposed on both sides of the display device 100, and yellow light sources 200 are respectively disposed on the back surfaces of the light-transmitting plates 400. In another embodiment, the yellow light source 200 can also be a device on the side of the back of the display device 100. In this embodiment, only two light-transmitting sheets 400 are provided, but are not limited thereto. The yellow light emitted by the yellow light source 200 is refracted by the light-transmitting plate 400, and then irradiated around the front and the front of the display device 100 to neutralize the blue light generated by the display device 100, so that the intensity of the blue light entering the human eye is weakened. Reduce the damage of blue light to human visual cells. In one embodiment, the light transmissive plate 400 is a light transmissive material such as light transmissive resin or frosted glass.

In an embodiment of the present invention, the yellow light emitted by the yellow light source 200 is also refracted by the light-transmitting plate 400 and reflected by a wall (not shown) passing through the rear of the display device 100, and then irradiated around the display device 100 and In front, neutralizing the blue light generated by the display device 100, the intensity of the blue light entering the human eye is weakened, so as to reduce the damage of the blue light to the human visual cells.

In an embodiment of the invention, the light transmissive plate 400 is a white light transmissive plate. The yellow light emitted by the yellow light source 200 is still refracted by the white light-transmitting plate, and the yellow light is still present, so that the effect of neutralizing the blue light can be achieved.

In an embodiment of the invention, the light transmissive plate 400 is a yellow light transmissive plate. The yellow light source 200 can be replaced by a white light source. The white light emitted by the white light source is still refracted by the yellow light-transmitting plate, and then the yellow light is still present, so that the effect of neutralizing the blue light can be neutralized, so that the intensity of the blue light entering the human eye is weakened. To reduce the damage of blue light to human visual cells.

Figure 5 is a front elevational view of a yellow backlight system in accordance with an embodiment of the present invention.

In FIG. 5, two yellow light sources 200 are disposed in front of the display device 100, and the display device 100 emits light including blue light, and then the yellow light source 200 neutralizes the blue light emitted from the display device 100 by emitting yellow light. The yellow light of the yellow light source 200 illuminates the faint yellow light reflected on the display device 100 and the wall behind the display device 100 (not shown) to neutralize the blue light generated by the display device 100, so that the light enters The blue light intensity of the human eye is weakened to reduce the damage of blue light to human visual cells.

Compared with the prior art, the present invention does not need to additionally filter the blue light lens, and can also reduce the intensity of the blue light to reduce the damage to the human visual cells, and is not for the user who has already worn the myopia glasses. Therefore, it is necessary to additionally reconfigure a new filter blue lens to increase unnecessary costs. Moreover, the method of the present invention does not cause the problem of misjudging the color judgment by wearing the filtered blue lens for a long time in the prior art. In addition, in the case of adding a yellow light source in addition to the present invention, the brightness of the surrounding environment can be significantly improved, and the eyes are less likely to be tired when watching the screen for a long time.

The above-described embodiments are merely illustrative of the effects of the present invention, and are not intended to limit the present invention, and those skilled in the art can modify and modify the above-described embodiments without departing from the spirit and scope of the present invention. . In addition, the number of elements in the above-described embodiments is merely illustrative and is not intended to limit the invention. Therefore, the scope of the invention should be as set forth in the following claims.

S11, S12‧‧‧ steps

Claims (8)

A yellow backlight system includes: a display device comprising a blue light; at least one light transmissive plate disposed on the display device; and at least one yellow light source emitting a yellow light in a specific manner to Surrounding the display device, neutralizing the intensity of the blue light; wherein the at least one yellow light source is disposed on the at least one light transmissive plate. The yellow backlight system of claim 1, wherein the yellow light has a wavelength between 570 nm and 590 nm. The yellow backlight system of claim 1, wherein the specific mode is refraction. The yellow backlight system of claim 1, wherein the specific mode is reflection. The yellow backlight system of claim 1, wherein the specific mode is a combination of reflection and refraction. The yellow backlight system of claim 1, wherein the at least one yellow light source is disposed on the display device and one of the surrounding of the display device. A yellow backlight method includes: emitting light including a blue light by a display device; and emitting a yellow light to a periphery of the display device in a specific manner by at least one yellow light source to neutralize the The intensity of the blue light; wherein the at least one yellow light source is disposed on the at least one light transmissive plate, and the at least one light transmissive plate is disposed on the display device. The yellow backlight method of claim 7, wherein the yellow light has a wavelength between 570 nm and 590 nm and the specific mode can be reflection, refraction, and reflection and refraction. One of the combination types.