CN113889052A - Display with blue light filtering function - Google Patents
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- CN113889052A CN113889052A CN202010621909.4A CN202010621909A CN113889052A CN 113889052 A CN113889052 A CN 113889052A CN 202010621909 A CN202010621909 A CN 202010621909A CN 113889052 A CN113889052 A CN 113889052A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
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Abstract
The invention mainly discloses a display with a blue light filtering function, which comprises a display main body and a light parameter adjusting and reducing unit. The light parameter reducing unit is arranged to face a display screen of the display main body, and is used for reducing a color temperature of a color light emitted by the display screen to be lower than 3000K and can be reduced to be lower than 2000K at the lowest, and the original brightness of the color light can be reduced to almost no brightness in a segmented mode. On the other hand, the experimental data also confirm that after the light parameter reducing unit reduces the color temperature and the illumination of the color light, the allowable exposure time of a retina of the color light is greatly increased, and the melatonin suppression degree of the color light is obviously reduced at the same time. In addition, for a user watching the display, the original brightness can be reduced to be close to the background brightness according to the brightness of the background light, so that the health of eyes and physiology is considered, and the good visual balance is maintained.
Description
Technical Field
The invention relates to the technical field of filtering blue light and purple light to achieve an eye protection effect, in particular to a display with a blue light filtering function.
Background
It is known that natural light is divided into visible light and invisible light, wherein infrared rays and ultraviolet rays belong to invisible light, and red, orange, yellow, green, blue, indigo, and violet rays belong to visible light. The retina is an important part of the human eye, which converts light signals into nerve signals. It should be noted that sunlight is natural light with continuous spectrum and includes the whole visible light region, and fig. 1 shows the spectrum diagram of a white LED. White light LEDs are currently the mainstream artificial light emitting devices, and have been widely applied in various lamps, backlight modules, and self-luminous display panels. Fig. 2 shows a spectral diagram of an LCD display. From fig. 1 and 2, it can be seen that the spectrum of white LEDs and LCD displays contains high intensity blue light (400nm-500 nm).
Research data indicates that moderate blue light can boost spirit and give a sense of pleasure. However, excessive blue light may cause light damage, interfere with physiological clock, and damage to eyes, and severe cases may cause macular degeneration of eyes. For example, photo-retinitis (Photoretinitis) is a retinopathy, particularly blue light, caused by light exposure. Due to the high energy of the incident light, some chemical reactions occur on the retina, causing Photochemical damage (Photochemical Damage). ANSI Z136.1 has specified how to calculate the permissible exposure limit (MPE) of the retina, thereby specifying the safety of use of various light sources. The aforementioned ANSI is an abbreviation of American National Standard (ANSI). MPE uses an exposure time (in seconds) that allows for illumination at a particular wavelength (in watts/cm 2). Therefore, the MPE value for the retina for the same light will increase as its illumination increases. Of course, the retina of short wavelength light may have an allowable exposure limit that is necessarily shorter than that of long wavelength light under the same illumination.
Conceivably, as the time for using 3C electronic products is increasing, people pay attention to the effect of filtering blue light to protect eyes. Currently, anti-blue lenses, anti-blue eye patches, and anti-blue App programs are the most widely used anti-blue solutions. Unfortunately, the experimental data indicate that some anti-blue light schemes have limited effects in filtering out blue light and violet light, and cannot achieve the best eye protection effect. Briefly, there is still a lack of an eye protection solution with optimal blue light filtering. Accordingly, a display with blue light filtering function is provided.
Disclosure of Invention
The invention mainly aims to provide a display with a blue light filtering function, which comprises a display main body and a light parameter reducing unit. The light parameter reducing unit is arranged to face a display screen of the display main body, and is used for reducing a color temperature of a color light emitted by the display screen to be lower than 3000K and can be reduced to be lower than 2000K at the lowest. And the original brightness of the color light can be adjusted and reduced to almost no brightness in a segmented mode. On the other hand, the experimental data also confirm that after the light parameter reducing unit reduces the color temperature and the illumination of the color light, the allowable exposure time of a retina of the color light is greatly increased, and the melatonin suppression degree of the color light is obviously reduced at the same time. In addition, for a user watching the display, the original brightness can be reduced to be close to the background brightness according to the brightness of the background light, so that the health of eyes and physiology is considered, and the good visual balance is maintained.
To achieve the above objects, a first embodiment of the present invention provides a display with blue light filtering function, comprising:
a display main body having a display screen and a display processor; and
a light parameter adjusting and reducing unit facing the display screen for adjusting a color temperature of a color light emitted by the display screen to be lower than 3000K and lower than 2000K.
To achieve the above objects, the present invention provides a second embodiment of the display with blue light filtering function, which comprises:
a display main body having a display screen and a display processor; and
a light parameter adjustment unit facing the display screen for adjusting an original brightness of a color light emitted from the display screen to almost no brightness in segments.
To achieve the above objects, a third embodiment of the present invention provides a display with blue light filtering function, comprising:
a display main body having a display screen and a display processor; and
a light parameter adjustment and reduction unit facing the display screen for adjusting a color temperature of a color light emitted by the display screen to be lower than 3000K and lower than 2000K, and adjusting an original brightness of the color light to almost no brightness in a segmented manner.
In a practical embodiment, a fixing device is coupled to the display main body for supporting the light parameter descending unit so that the light parameter descending unit faces the display screen.
In a practical embodiment, the light parameter reducing unit can also be directly attached to the display screen so as to face the display screen.
In practical embodiments, after the light parameter down-regulating unit completes a down-regulating process of the color temperature and the first illumination of the color light, a retina of the color light may allow exposure time to increase by a magnification ranging from 20 to 100, and a melatonin suppression degree of the color light may simultaneously decrease by a magnification ranging from 1 to 5.
In practical embodiments, the optical parameter tuning and dropping unit can be a temperature tuning and dropping film or a wavelength conversion film.
In one embodiment, the display with blue light filtering function is integrated into an electronic device selected from any one of the group consisting of a television, a notebook, a laptop, a tablet, and a smart phone.
In a possible embodiment, the display with blue light filtering function according to the present invention may further include:
an ambient light sensing unit for sensing an ambient light; and
a microprocessor unit integrated in the display main body and coupled with the ambient light sensing unit and the display processor;
when an illumination difference between a first illumination of the color light and a second illumination of the ambient light is greater than a reference difference, the micro-processing unit transmits an illumination adjustment signal to the display processor, so that the display processor adjusts the first illumination of the color light to approach the second illumination of the ambient light.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 shows a spectrum of a white LED;
FIG. 2 shows a spectrum of an LCD display;
FIG. 3 is a first perspective view of a display with blue light filtering according to the present invention;
FIG. 4 shows a second perspective view of a display with blue light filtering of the present invention; and
FIG. 5 is a block diagram of a display body of the display with blue light filtering according to the present invention.
Wherein the reference numerals
Display with blue light filtering function
11 display main body
111 display screen
112 display processor
12 optical parameter regulating and reducing unit
121: fixing device
13 ambient light sensing unit
Micro-processing unit (14)
Detailed Description
In order to more clearly describe the display with blue light filtering function in the present invention, the following description will refer to the accompanying drawings to describe the preferred embodiments of the present invention in detail.
Please refer to fig. 3, which shows a first perspective view of a display with blue light filtering function according to the present invention. As shown in fig. 3, the display 1 with blue light filtering function of the present invention is integrated into an electronic device, and the electronic device is a television. In one embodiment, the display 1 with blue light filtering function of the present invention mainly includes a display main body 11 and a light parameter down-regulating unit 12. The display body 11 has a display screen 111 and a display processor 112, and the light parameter down-regulating unit 12 is disposed to face the display screen 111. With such a design, the light parameter reducing unit 12 is configured to reduce a color temperature of a color light emitted by the display screen 111 to less than 3000K, and to be reduced to less than 2000K at the lowest, and reduce a first illumination of the color light by a reduction magnification in a range from 2 to 10. For example, an original brightness of the color light can be adjusted to almost no brightness in segments. After the light parameter adjusting unit 12 finishes the adjustment and reduction processing of the color temperature and the first illumination of the color light, a retina of the color light can allow exposure time to increase according to a multiplying factor ranging from 20 to 100, and a melatonin suppression degree of the color light simultaneously decreases according to a multiplying factor ranging from 1 to 5.
It should be understood that the display 1 with blue light filtering function incorporating the present invention has different specific forms. In a possible embodiment, as shown in fig. 3, a fixing device 121 is coupled to the display main body 11 for supporting the light parameter reducing unit 12, such that the light parameter reducing unit 12 faces the display screen 111. On the other hand, fig. 4 shows a second perspective view of the display with blue light filtering function of the present invention. As shown in fig. 4, the display with blue light filtering function is integrated into an electronic device, and the electronic device is a smart phone. In addition, fig. 4 also shows that the light parameter tuning-down unit 12 is directly attached to the display screen 111, so as to face the display screen 111.
As can be seen from fig. 4 and 3, the display 1 with blue light filtering function of the present invention has different specific forms. Further, the display 1 with blue light filtering function of the present invention can be integrated into an electronic device, and the electronic device can be a television, a notebook computer, a personal computer, a tablet computer, or a smart phone. On the other hand, the optical parameter tuning and decreasing unit 12 may be a color temperature tuning and decreasing film, a short wavelength filtering film or a wavelength converting film.
With continuing reference to FIG. 3 and with further reference to FIG. 5, a block diagram of the display body 11 is shown. As shown in fig. 3 and fig. 5, in a possible embodiment, the display 1 with blue light filtering function of the present invention further includes an ambient light sensing unit 13 and a microprocessor unit 14. The micro processing unit 14 is integrated in the display main body 11 and coupled to the ambient light sensing unit 13 and the display processor 112. According to the design of the present invention, the ambient light sensing unit 13 is used for sensing an ambient light, so that the microprocessor unit 14 can know the illumination variation of the ambient light. By such design, when an illumination difference between a first illumination of the color light emitted from the display screen 111 and a second illumination of the ambient light is greater than a reference difference, the micro-processing unit 14 transmits an illumination adjustment signal to the display processor 112, so that the display processor 112 adjusts the first illumination of the color light to approach the second illumination of the ambient light. In the case that the first illuminance of the colored light is close to or equal to the illuminance of the ambient light, the eyes of the user watching the television can maintain visual balance, thereby obtaining the optimal eye protection effect. In short, for a user watching the display 1 with the blue light filtering function of the present invention, the present invention can adjust the original brightness to be close to the background brightness according to the brightness of the background light, so as to take care of the health of eyes and physiology and maintain a good visual balance.
Examples of the experiments
In the experimental example, one brand a mobile phone screen is used as a control group, and another brand a mobile phone screen coated with a color temperature tuning film (i.e., the optical parameter tuning and dropping unit 12) is used as an experimental group. The experimental data are collated in the following table (1).
Watch (1)
From the experimental data in table (1), it can be found that the illuminance of the color light emitted from the brand a mobile phone screen coated with the color temperature tuning film is reduced by 7.12 times, and the color temperature of the color light is reduced to less than 2000K, compared with the brand a mobile phone screen. Meanwhile, experimental data also show that after the color temperature tuning film (i.e., the light parameter tuning and dropping unit 12) performs the color temperature and illumination tuning and dropping processes on the color light emitted by the brand a mobile phone screen, a Melatonin suppression degree (MSS) of the color light is simultaneously decreased by 2.65 times, and a retina allowable exposure time (MPE) of the color light is increased by 91.43 times.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (18)
1. A display having a blue light filtering function, comprising:
a display main body having a display screen and a display processor; and
a light parameter adjusting and reducing unit facing the display screen for adjusting a color temperature of a color light emitted by the display screen to be lower than 3000K, and can be adjusted to be lower than 2000K at the lowest.
2. The display of claim 1, wherein after the light parameter down-scaling unit completes a down-scaling process of the color temperature and the first illumination of the color light, a retina of the color light can allow exposure time to increase by a factor, and the factor is between 20 and 100.
3. The display of claim 1, wherein after the light parameter down-tuning unit completes the down-tuning of the color temperature and the first illumination of the color light, a melatonin suppression level of the color light is simultaneously decreased by a factor between 1 and 5.
4. The display of claim 1 integrated into an electronic device selected from the group consisting of a television, a laptop, a tablet, and a smart phone.
5. The display apparatus of claim 1, wherein the optical parameter modulation and reduction unit is a temperature modulation falling film, a short wavelength filtering film or a wavelength conversion film.
6. The display of claim 1, further comprising:
an ambient light sensing unit for sensing an ambient light; and
a microprocessor unit integrated in the display main body and coupled with the ambient light sensing unit and the display processor;
when an illumination difference between a first illumination of the color light and a second illumination of the ambient light is greater than a reference difference, the micro-processing unit transmits an illumination adjustment signal to the display processor, so that the display processor adjusts the first illumination of the color light to approach the second illumination of the ambient light.
7. A display having a blue light filtering function, comprising:
a display main body having a display screen and a display processor; and
a light parameter adjustment and reduction unit facing the display screen for adjusting and reducing an original brightness of a color light emitted from the display screen to almost no brightness in segments.
8. The display of claim 7, wherein after the light parameter down-scaling unit completes a down-scaling process of the color temperature and the first illumination of the color light, a retina of the color light can allow exposure time to increase by a factor, and the factor is between 20 and 100.
9. The display of claim 7, wherein after the light parameter down-tuning unit completes the down-tuning of the color temperature and the first illumination of the color light, a melatonin suppression level of the color light is simultaneously decreased by a factor between 1 and 5.
10. The display of claim 7 integrated into an electronic device selected from the group consisting of a television, a laptop, a tablet, and a smart phone.
11. The display apparatus of claim 7, wherein the optical parameter modulation and reduction unit is a temperature modulation falling film, a short wavelength filtering film or a wavelength conversion film.
12. The display of claim 7, further comprising:
an ambient light sensing unit for sensing an ambient light; and
a microprocessor unit integrated in the display main body and coupled with the ambient light sensing unit and the display processor;
when an illumination difference between a first illumination of the color light and a second illumination of the ambient light is greater than a reference difference, the micro-processing unit transmits an illumination adjustment signal to the display processor, so that the display processor adjusts the first illumination of the color light to approach the second illumination of the ambient light.
13. A display having a blue light filtering function, comprising:
a display main body having a display screen and a display processor; and
a light parameter adjustment and reduction unit facing the display screen for adjusting a color temperature of a color light emitted by the display screen to be lower than 3000K, and can be adjusted to be lower than 2000K at least, and can adjust an original brightness of the color light to almost no brightness in a segmented manner.
14. The display of claim 13, wherein a retina of the color light is capable of allowing exposure time to increase by a factor of 20 to 100 after the light parameter down-scaling unit completes a down-scaling process of the color temperature and the first illumination of the color light.
15. The display of claim 13, wherein after the light parameter down-tuning unit completes the down-tuning of the color temperature and the first illumination of the color light, a melatonin suppression level of the color light is simultaneously decreased by a factor between 1 and 5.
16. The display of claim 13, wherein the display is integrated into an electronic device selected from the group consisting of a television, a laptop, a tablet, and a smart phone.
17. The display apparatus of claim 13, wherein the optical parameter modulation and reduction unit is a temperature modulation falling film, a short wavelength filtering film or a wavelength conversion film.
18. The display of claim 13, further comprising:
an ambient light sensing unit for sensing an ambient light; and
a microprocessor unit integrated in the display main body and coupled with the ambient light sensing unit and the display processor;
when an illumination difference between a first illumination of the color light and a second illumination of the ambient light is greater than a reference difference, the micro-processing unit transmits an illumination adjustment signal to the display processor, so that the display processor adjusts the first illumination of the color light to approach the second illumination of the ambient light.
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| CN202010621909.4A CN113889052B (en) | 2020-07-01 | 2020-07-01 | Display with blue light filtering function |
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| CN202010621909.4A CN113889052B (en) | 2020-07-01 | 2020-07-01 | Display with blue light filtering function |
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| CN113889052B CN113889052B (en) | 2023-03-28 |
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| CN104950515A (en) * | 2014-03-31 | 2015-09-30 | 冠捷投资有限公司 | Display panel with short wave blue light restraining function |
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| CN110428794A (en) * | 2019-08-06 | 2019-11-08 | 广东小天才科技有限公司 | A kind of method, apparatus and system adjusting screen blue light |
| TW202005477A (en) * | 2018-05-30 | 2020-01-16 | 國立清華大學 | Human body-friendly light source and use thereof |
| CN111077699A (en) * | 2019-12-19 | 2020-04-28 | Tcl华星光电技术有限公司 | Backlight module and display device |
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2020
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950515A (en) * | 2014-03-31 | 2015-09-30 | 冠捷投资有限公司 | Display panel with short wave blue light restraining function |
| CN105590578A (en) * | 2014-10-20 | 2016-05-18 | 深圳富泰宏精密工业有限公司 | Eye protection system and method capable of automatically turning on blue light filter |
| WO2019148594A1 (en) * | 2018-01-31 | 2019-08-08 | 武汉华星光电半导体显示技术有限公司 | Oled display and manufacturing method therefor |
| CN208110948U (en) * | 2018-05-12 | 2018-11-16 | 江西中泰和讯科技有限公司 | Naked eye eyeshield display screen |
| TW202005477A (en) * | 2018-05-30 | 2020-01-16 | 國立清華大學 | Human body-friendly light source and use thereof |
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| CN111077699A (en) * | 2019-12-19 | 2020-04-28 | Tcl华星光电技术有限公司 | Backlight module and display device |
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| CN113889052B (en) | 2023-03-28 |
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