CN207586589U - A kind of liquid crystal display of high-quality light source - Google Patents
A kind of liquid crystal display of high-quality light source Download PDFInfo
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- CN207586589U CN207586589U CN201720992673.9U CN201720992673U CN207586589U CN 207586589 U CN207586589 U CN 207586589U CN 201720992673 U CN201720992673 U CN 201720992673U CN 207586589 U CN207586589 U CN 207586589U
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Abstract
The utility model discloses a kind of liquid crystal displays of high-quality light source, and including liquid crystal display panel and backlight assembly, liquid crystal display panel includes upper glass and lower glass, is provided with colored filter on upper glass, film transistor device is provided on lower glass；Backlight assembly includes light source portion and the luminescence chip group being installed in light source portion, luminescence chip group includes the first luminescence chip, the second luminescence chip, third luminescence chip, the wavelength of first luminescence chip is 610~635nm, the wavelength of second luminescence chip is 480~520nm, and the wavelength of third luminescence chip is 430~460nm.The utility model can enable display backlight component effectively improve noctovision spectral band energy, and harmful blue light ratio is greatly reduced, so as to protect eyes；The brightness for not needing to be very high can see image clearly, more energy saving, and the 3D depth of field can be improved as 3D display device.
Description
【Technical field】
The utility model is related to the technical field of display screen and backlight assembly, particularly a kind of liquid crystal display of high-quality light source
The technical field of screen.
【Background technology】
The principle of luminosity of liquid crystal display device (LCD) is using back light issued light (generally LED), passes through liquid
Crystal panel transmission institute into；Incident light can be divided into R/G/B three coloured lights, final display device by the Color Filter in liquid crystal display panel
Image synthesize whether be the transmission by the R/G/B of each pixel of LCD Controlling.The backlight assembly of display device is sent out
The light gone out injects human eye, human eye is enable to tell brightness and color, so as to generate image；Fig. 1 is sent out for prior art blue
The spectral schematic that the illumination mode of optical chip excitated fluorescent powder is sent out；Fig. 2 uses R/G/B three-color light-emittings for the prior art
The spectral schematic that mode is sent out.The blue light energy of 430nm-460nm that existing LCD screen backlight component is sent out into
Divide ratio very high, it is very big to the injury of human eye；Fig. 3 uses R/G/B three-color light-emitting mode liquid crystal displays for the prior art
The optical filtering spectral schematic of part Color Filter；Fig. 5 is perception spectral schematic of the human eye to light.It was verified that human eye
Photopic vision cell (cone cell) is most sensitive to 555nm or so wave band light, i.e. photopic vision spectrum (Photopic)；Human eye scotopia cell
(depending on the pillar cells) is most sensitive to the light of 505nm or so wave bands, i.e. scotopia spectrum (Scotopic)；Therefore, it is most suitable for human eye
Light should be intermediate light (Mesopic)；Human eye photopic vision cell accounts for cellula visualis 2% or so, and scotopia cell accounts for cellula visualis
98% or so, it more allows scotopia cell work that visual fatigue just not would tend to occur, does not need to too big light intensity just
It can see subject image.The study found that the effect of display device display image is good, factor need to following aspects with badly having
Consider：1st, white chromaticity coordinates, i.e., white shown by display whether can true representation go out the white of nature；2nd, it shows
Can the color saturation of image, i.e. display restore the true color of nature；3rd, the Color Range that can be shown, i.e. colour gamut are big
It is small；4th, brightness and contrast.For illuminator, S/P, that is, photopic vision light and scotopia light energy ratio, be light quality important parameter.
The size of S/P ratios directly affects the height of perceived brightness.Therefore it is a very important improvement light to improve S/P ratios
Quality and energy-efficient measure.It is white to be that blue chip excitated fluorescent powder is sent out for the basic principle of luminosity of LED illuminator in the prior art
Light, this illumination mode make the S/P values of LED very low, usually 1.2 hereinafter, and have during shining it is a large amount of right
Human eye have injury blue light overflow, according to clear object mode only by increasing the luminous flux and illumination of LED lamp, in this way, not
But human eye is injured, and wastes a large amount of energy.The spectrum tuning of white light can be optimized with the chip of narrow spectrum monochrome.It is red
It is the main stimulation factor of entire photoreception.Cyan can significantly improve Snazzi degree, be approved by industry recently.
【Utility model content】
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of liquid crystal display of high-quality light source
Screen, can enable display backlight component effectively improve noctovision spectral band energy, harmful blue light ratio is greatly reduced, so as to
Protect eyes；The brightness for not needing to be very high can see image clearly, more energy saving, and 3D scapes can be improved as 3D display device
It is deep.
To achieve the above object, the utility model proposes a kind of liquid crystal display of high-quality light source, including liquid crystal display
Panel and backlight assembly, the liquid crystal display panel include upper glass and lower glass, and setting chromatic colour is filtered on the upper glass
Mating plate is provided with film transistor device on the lower glass；Backlight assembly includes light source portion and to be installed in light source auxiliary
The luminescence chip group in portion is helped, the luminescence chip group includes the first luminescence chip, the second luminescence chip, third luminescence chip,
The wavelength of first luminescence chip is 610~635nm, and the wavelength of the second luminescence chip is 480~520nm, and third shines core
The wavelength of piece is 430~460nm.
Preferably, the light source portion includes straight-down negative reflection diaphragm and straight-down negative diffuser plate, the straight-down negative is anti-
The plate face lower part that diaphragm is located at straight-down negative diffuser plate is penetrated, the luminescence chip group is located at straight-down negative reflection diaphragm and straight-down negative diffusion
Between plate.
Preferably, the light source portion includes spreading under side-light type reflection diaphragm, optical light guiding plate of side, side-light type
Diffusion sheet on piece, side-light type prismatic lens and side-light type is spread under the side-light type reflection diaphragm, optical light guiding plate of side, side-light type
Diffusion sheet is set gradually from bottom to top on piece, side-light type prismatic lens and side-light type, and the luminescence chip group is arranged on side-light type and leads
Tabula rasa edge side.
Preferably, the first luminescence chip wavelength be 620nm, the second luminescence chip wavelength be 515nm, institute
Third luminescence chip wavelength is stated as 450nm.
Preferably, the type of the luminescence chip is LED.
The beneficial effects of the utility model：The utility model is by the way that the luminescence chip group contained there are three luminescence chip is used as
Display backlight component makes three luminescence chips send out the light of different wave length as three primary colours, by accurately controlling change three
A luminescence chip emits beam the range of wavelength, can reduce the ratio of blue light as needed, reduce injury of the blue light to eyes,
More acceptable light of human eye scotopia cell are sent out as far as possible simultaneously, more allow scotopia cell work just will not be easy
There is visual fatigue, improve human eye scotopia cell to the receiving amount of light, visual effect, reasonable design, work can be substantially improved
Make securely and reliably, the brightness for not needing to be very high can see image clearly, so as to save energy, can be improved as 3D display device
The 3D depth of field.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
The spectral schematic that Fig. 1 is sent out by the illumination mode of prior art blue luminescence chip excitated fluorescent powder；
The spectral schematic that Fig. 2 is sent out by the prior art using R/G/B three-color light-emitting modes；
Fig. 3 is the optical filtering light that the prior art uses R/G/B three-color light-emitting mode liquid crystal display device Color Filter
Compose schematic diagram；
Fig. 4 uses R/G/B three-color light-emitting modes LED backlight (Back Light) spectrum and display screen for the prior art
The spectrum superposition schematic diagram of color filter；
Fig. 5 is perception spectral schematic of the human eye to light；
Fig. 6 is the decomposition diagram in the light source portion that embodiment one proposes；
Fig. 7 is the decomposition diagram in the light source portion that embodiment two proposes；
Fig. 8 is the schematic diagram of luminescence chip group；
Fig. 9 is changed to dotted line schematic diagram for the utility model illumination mode institute's luminous spectrum by solid line；
Figure 10 is changed to the change schematic diagram of dotted line colour gamut for the utility model illumination mode institute's luminous spectrum by solid line.
In figure：1- straight-down negatives reflection diaphragm, 2- luminescence chip groups, the first luminescence chips of 21-, the second luminescence chips of 22-,
23- thirds luminescence chip, 3- straight-down negatives diffuser plate, 4- straight-down negatives heat-dissipating pipe, 5- side-light types reflection diaphragm, 6- side-light types are guide-lighting
Diffusion sheet under plate, 7- side-light types, 8- side-light types prismatic lens, diffusion sheet on 9- side-light types.
【Specific embodiment】
Embodiment one, refering to Fig. 6 and Fig. 8, a kind of liquid crystal display of high-quality light source of the utility model, including liquid crystal display
Panel and backlight assembly, the liquid crystal display panel include upper glass and lower glass, and setting chromatic colour is filtered on the upper glass
Mating plate is provided with film transistor device on the lower glass；Backlight assembly includes light source portion and to be installed in light source auxiliary
The luminescence chip group 2 in portion is helped, the luminescence chip group 2 includes the first luminescence chip 21, the second luminescence chip 22, third and shines
Chip 23, the wavelength of first luminescence chip 21 are 610~635nm, the wavelength of the second luminescence chip 22 for 480~
520nm, the wavelength of third luminescence chip 23 is 430~460nm.The wavelength of two luminescence chips 22 is 480~520nm, and third is sent out
The wavelength of optical chip 23 is 430~460nm.Since the backlight of design frequency range and traditional backlight the source frequency range that shines that shines has not
Together, so the colored filter of the design need to do corresponding adjustment, enable the transmission wave band and light emitting source of colored filter
Wave band matches, and makes the photoresist that the light that backlight is sent out passes through colored filter minimum, makes backlight loss minimum, the light source
Portion includes straight-down negative reflection diaphragm 1 and straight-down negative diffuser plate 3, and the straight-down negative reflection diaphragm 1 is located at the plate of straight-down negative diffuser plate 3
Face lower part, the luminescence chip group 2 is between straight-down negative reflection diaphragm 1 and straight-down negative diffuser plate 3.First luminescence chip
21 wavelength are 620nm, and 22 wavelength of the second luminescence chip is 515nm, and 23 wavelength of third luminescence chip is 450nm.Institute
The type for stating luminescence chip is LED.
Embodiment one, refering to Fig. 7 and Fig. 8, a kind of liquid crystal display of high-quality light source of the utility model, including liquid crystal display
Panel and backlight assembly, the liquid crystal display panel include upper glass and lower glass, and setting chromatic colour is filtered on the upper glass
Mating plate is provided with film transistor device on the lower glass；Backlight assembly includes light source portion and to be installed in light source auxiliary
The luminescence chip group 2 in portion is helped, the luminescence chip group 2 includes the first luminescence chip 21, the second luminescence chip 22, third and shines
Chip 23, the wavelength of first luminescence chip 21 are 610~635nm, the wavelength of the second luminescence chip 22 for 480~
520nm, the wavelength of third luminescence chip 23 is 430~460nm.Since the backlight of the design shines frequency range and traditional backlight
The source frequency range that shines is different, so the colored filter of the design need to do corresponding adjustment, makes the transmission wave band of colored filter
It can be matched with the wave band of light emitting source, make the photoresist that the light that backlight is sent out passes through colored filter minimum, make backlight loss most
It is small.The light source portion includes diffusion sheet 7, side-light type prism under side-light type reflection diaphragm 5, optical light guiding plate of side 6, side-light type
Diffusion sheet 9 on piece 8 and side-light type, diffusion sheet 7, side-light type under the side-light type reflection diaphragm 5, optical light guiding plate of side 6, side-light type
Diffusion sheet 9 is set gradually from bottom to top on prismatic lens 8 and side-light type, and the luminescence chip group 2 is arranged on 6 side of optical light guiding plate of side
Edge side.First luminescence chip, 21 wavelength is 620nm, and 22 wavelength of the second luminescence chip is 515nm, the third hair
23 wavelength of optical chip is 450nm.The type of the luminescence chip is LED.
A kind of liquid crystal display of high-quality light source of the utility model, from problem of the existing technology：Human eye only has
2% or so photopic vision cell (cone cell), it is most sensitive to the light of wavelength 555nm or so；98% or so scotopia cell (depending on
The pillar cells), it is most sensitive to the light of wavelength 505nm or so；All it is photopic vision and scotopia cell work simultaneously under most of luminous environment
Make；Ensuring that external object color is distortionless, S/P ratios (scotopia light and photopic vision light ratio) are higher, and human eye is external
The ability to accept of boundary's light is better, does not generate feeling of fatigue.For display device, it is (red Red, green that R/G/B is defined all the time
Green, indigo plant Blue) be color three primary colours, different color effects is reached by the mixed light of three primary colours different proportion；At present
For display field, high brightness, wide colour gamut is important product specification；And current whether traditional LED field or television set
The series of products such as field, quantum dot used are all to excite red-green glow by the blue light of high energy, so high brightness, wide colour gamut etc.
The raising of performance, the requirement for blue light energy are also high；Thus ignore the health to consumer；And human eye scotopia cell is most
Sensitive 505nm wave bands, it should be green light (Cyan)；Under conditions of true colors seen by human eye are not changed, Cyan is improved
The light energy of wave band can be comfortable on human eye, and can reduce blue light ingredient ratio.
The spectrum that the utility model is sent out, based on SPD (Spectrum Power Distribution) technology,
That is spectral power distribution technology, the SPD technologies are spectral power distribution (spectral power distribution, SPD)
Technology maximizes by adjusting spectrum to reach required light energy.It can solve the problems, such as above-mentioned reduction blue light ingredient.
By regarding the luminescence chip group contained there are three luminescence chip as display backlight component, three luminescence chips is made to send out different waves
Long light changes three luminescence chips and emits beam the range of wavelength as three primary colours by accurately controlling, can be according to need
The ratio of blue light is reduced, reduces injury of the blue light to eyes, while send out more human eye scotopia cells as far as possible and be subjected to
Light, scotopia cell work is more allowed just not would tend to occur visual fatigue, improves human eye scotopia cell to light
Receiving amount, can substantially improve visual effect, reasonable design, safe and reliable, and the brightness for not needing to be very high can see clearly
So as to save energy, the 3D depth of field can be improved as 3D display device for image.
The spectrum that the utility model uses still using R it is red/G is green/B indigo plant three primary colours, by former G (green spectral) second band
(520-560nm) reduces 520nm -535nm wave band energy, carries to high-frequency mobile, inclined C (cyan Cyan) (480~520)
High 480nm-520nm wave bands energy；Former B (blue color spectrum) first band (430-460nm) energy reduces, former R (red lights
Spectrum) (610-635nm) substantially unchanged；Thus using R it is red/C blueness/B indigo plants as three primary colours, still can it be obtained by colour mixture
His color, white chromaticity coordinates can also be constant；In addition, light source provided by the utility model, can send out human eye and be easier to connect
By the spectrum of the spectrum with identification, that is, high S/P ratios, it can thus be reached with relatively low power consumption, relatively low brightness and similarly regarded
Feel effect.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, any new to this practicality
Scheme after type simple transformation belongs to the scope of protection of the utility model.
Claims (5)
1. a kind of liquid crystal display of high-quality light source, including liquid crystal display panel and backlight assembly, it is characterised in that：The liquid
LCD panel includes upper glass and lower glass, is provided with colored filter on the upper glass, is provided on the lower glass
Film transistor device；Backlight assembly includes light source portion and the luminescence chip group being installed in light source portion, described
Luminescence chip group includes the first luminescence chip, the second luminescence chip, third luminescence chip, and the wavelength of first luminescence chip is
610~635nm, the wavelength of the second luminescence chip is 480~520nm, and the wavelength of third luminescence chip is 430~460nm.
2. a kind of liquid crystal display of high-quality light source as described in claim 1, it is characterised in that：The light source portion includes
Straight-down negative reflection diaphragm and straight-down negative diffuser plate, the straight-down negative reflection diaphragm are located at the plate face lower part of straight-down negative diffuser plate, institute
Luminescence chip group is stated between straight-down negative reflection diaphragm and straight-down negative diffuser plate.
3. a kind of liquid crystal display of high-quality light source as described in claim 1, it is characterised in that：The light source portion includes
Diffusion sheet on diffusion sheet, side-light type prismatic lens and side-light type, described under side-light type reflection diaphragm, optical light guiding plate of side, side-light type
Under side-light type reflection diaphragm, optical light guiding plate of side, side-light type on diffusion sheet, side-light type prismatic lens and side-light type diffusion sheet from down toward
On set gradually, the luminescence chip group is arranged on optical light guiding plate of side edge side.
4. a kind of liquid crystal display of high-quality light source as described in claim 1, it is characterised in that：The first luminescence chip wave
A length of 620nm, the second luminescence chip wavelength are 515nm, and the third luminescence chip wavelength is 450nm.
5. such as a kind of liquid crystal display of high-quality light source of Claims 1-4 any one of them, it is characterised in that：It is described to shine
The type of chip is LED.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108241233A (en) * | 2017-08-10 | 2018-07-03 | 深圳市英唐光显技术有限公司 | Liquid crystal display screen with high-quality light source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241233A (en) * | 2017-08-10 | 2018-07-03 | 深圳市英唐光显技术有限公司 | Liquid crystal display screen with high-quality light source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Johannes Otto Roymans Inventor after: Pan Zisheng Inventor before: Pan Zisheng |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200702 Address after: 518000 No.101, Yingtang building, No.005, Keji South Fifth Road, high tech Zone, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen polar optical technology Co., Ltd Address before: 518000 5th floor, Yingtang building, Keji South 5th Road, high tech Industrial Park, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN YINGTANG GUANGXIAN TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220426 Address after: 518000 floors 6, 7 and 8, block B, Haina Baichuan headquarters building, No. 6, Baoxing Road, Haiwang community, Xin'an street, Bao'an District, Shenzhen, Guangdong Patentee after: SHENZHEN YITOA INTELLIGENT CONTROL Co.,Ltd. Address before: 518000 101, Yingtang building, No. 005, Keji South Fifth Road, high tech Zone, Yuehai street, Nanshan District, Shenzhen, Guangdong Patentee before: Shenzhen polar optical technology Co.,Ltd. |
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| TR01 | Transfer of patent right |