CN207636884U - A kind of colour gamut widens device - Google Patents
A kind of colour gamut widens device Download PDFInfo
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- CN207636884U CN207636884U CN201820030917.XU CN201820030917U CN207636884U CN 207636884 U CN207636884 U CN 207636884U CN 201820030917 U CN201820030917 U CN 201820030917U CN 207636884 U CN207636884 U CN 207636884U
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Abstract
The utility model is that a kind of colour gamut widens device.The group of the device becomes：On optical path direction, it is disposed with and arranged in parallel is polarized the first basic unit of polarizing appliance and M groups；Each first basic unit includes the phase delay chip group being sequentially arranged and analyzing polarizing appliance, M=1~5；The phase delay chip group is made of the identical phase delay chip of N pieces arranged in parallel, and the Axis Azimuth angle of N=1~20, every phase delay chip is：± [(2K 1) * 90/ (2N)]+m degree；Alternatively, when the N multiples for being 4 add 1, in phase delay chip group, from first phase delay chip, the Axis Azimuth angle of every 4 phase delay chips is followed successively by ± 45 degree, 90 degree, ± 45 degree, 0 degree, and the optical axis angle of the last one phase delay chip is ± 45 degree.The optical texture of utility model device is simple, may be implemented be more than 140%NTSC colour gamut, can realize preferably wide colour gamut effect at original by lower.
Description
Technical field
The utility model is related to a kind of colour gamuts being made of phase delay chip and polarizing appliance to widen device, can be applied to show
Show device and light source light spectrum regulation and control.
Background technology
In recent years, high colour gamut light source becomes the hot spot of research, and the colour gamut of light source depends on the luminous mass of light source, including
The full width at half maximum (FWHM) of the position of glow peak and glow peak in spectrum, the position of glow peak determine the color of color, the position of glow peak
The wave-length coverage closer to red green blue tricolor is set, the development properties of light source are better, and the full width at half maximum (FWHM) of glow peak determines color
The full width at half maximum (FWHM) of purity, glow peak is narrower, and color is purer, and the colour gamut of light source is wider.
Existing wide colour gamut light source technology can substantially be divided into two kinds, and one is the electroluminescent to use monochromatic light performance good
Diode technologies are the light source technology of representative, and illumination effect depends entirely on light source, expensive；Another kind is with photic amount
Son point luminescence technology is that the backlight colour gamut of representative widens method, and illumination effect widens device for specifying wave depending on colour gamut
The absorption or reflection of long light.In backlight colour gamut widens method, including existing widen device using quantum dot film as colour gamut
Photic quantum dot light emitting technology (if practical New Name is " quantum dot colour filter and the display for including the quantum dot colour filter
The Chinese utility model patent No.201610915843.3 of device "), green and red quantum dot material are excited using blue light,
Realize the transmitting of three color of light of RGB；Or widened using color notch filter as colour gamut device technology it is (practical new
The Chinese utility model patent of type entitled " high dynamic range displays with wide colour gamut and energy efficiency "
No.201280041032.5), the white light of light source is controlled using color notch filter, prevent the light of part colours from
Pass through, to realize that colour gamut is broadening；Or widened using filter as colour gamut device technology (as practical New Name is " with
The Chinese utility model patent No.200980117147.6 of the organic light emitting diode display of filter encapsulating "), use light
It learns filter to control the light of light source, realizes the colour gamut control of emergent light；Or and use function reflective polarizers
Technology (the topic that publishes thesis " the Enlarging the color gamut of liquid of device are widened as colour gamut
Crystal displays with a functional reflective polarizer ", periodical Optics Express,
Vol.25,102-111,2017), while realizing polarised light, the light of part wavelength is carried out using function reflective polarizers
Total reflection realizes wide colour gamut to lack the light of part wavelength in the light of outgoing.These technologies be all by colour gamut widen device with
Combination of light sources, the wide colour gamut light source of generation, photic quantum dot light emitting technology is uniquely to be answered in practice in these techniques
The illumination effect of highest 110%NTSC gamut standards may be implemented in technology, but since its material property makes its still face
Face high cost of manufacture (about 2 times of regular display), light source colour gamut can be further increased in other technical know-hows
To 120%NTSC gamut standards, but due to including the complexity in nano-scale of enormous amount in widening device in colour gamut
Structure and matched other electronic devices so that its production difficulty has reached quite high water with complex degree of structure
It is flat, so not being on the actual application so far.
Utility model content
Big, complicated, the with high costs problem of difficulty is prepared in order to solve existing wide colour gamut light source, the utility model carries
A kind of colour gamut has been supplied to widen device.By the way that polarizing appliance, phase delay chip group and analyzing polaroid will be polarized successively by certain
Angle parallel arranges, and constitutes an optical system, according to the phase delay chip of the utility model arrangement to the inclined of different wave length
The light action that shakes is different, and final transmitted light only has high transmittance in particular range of wavelengths, realizes the effect of wide colour gamut light source.
Compared with existing wide colour gamut light source technology, the utility model is for the realization of the wide colour gamut material special independent of quantum dot etc.
Material；Each structure uses common polaroid and phase delay chip, makes precision in micron dimension, while aobvious with available liquid crystal
Show that material used in device has universal performance, so the production difficulty needed for structure is low；The realization of apparatus function relies only on
It is simple with the combination of light source in optical texture, reduce the requirement of application environment.The utility model can pass through easier system
The light source effect of wide colour gamut is realized as technique.
The technical solution of the utility model is：
A kind of colour gamut widens device, and the composition of the device includes：
On optical path direction, it is disposed with and arranged in parallel is polarized polarizing appliance and M the first basic units；First base
This unit includes phase delay chip group and analyzing polarizing appliance, M=1~5；
The polarizing appliance that is polarized is absorption-type polaroid, polarization selector, wire grating or reflective polaroid；
The analyzing polarizing appliance is absorption-type polaroid, polarization selector, wire grating or reflective polaroid；
The light transmission axis direction for being polarized polarizing appliance is 0 degree；Under this benchmark：
The light transmission shaft angle of the analyzing polarizing appliance is 0 degree or 90 degree, preferably 0 degree.
The phase delay chip group is made of the identical phase delay chip of N pieces arranged in parallel, the integer of N=1~20,
Preferably 1~5；
In the phase delay chip group, the Axis Azimuth angle of every phase delay chip is：±[(2K-1)*90/
(2N)]+m degree；Wherein, K is the secondary ordinal number of phase delay chip, m=-10~10, preferably m=0；In the angle being related to while being
Just or simultaneously it is negative；
Alternatively, when the N multiples for being 4 add 1, in phase delay chip group, from first phase delay chip, every 4 phases
The Axis Azimuth angle of delay piece is followed successively by ± 45 degree, 90 degree, ± 45 degree, 0 degree；The optical axis angle of the last one phase delay chip
It is ± 45 degree；In the angle being related to while just or to be simultaneously negative；
The phase delay chip is for a certain single-wavelength light that wavelength is 500 nanometers -550 nanometers in visible-range
For multistage full-wave plate, wave plate series is in the range of 2~9.
In the phase delay chip group, phase delay chip therein puts in order with after optical axis angle determination, and phase is prolonged
Slow piece group can be all to be ranked sequentially forward or backwards in a device.
The beneficial effects of the utility model are：
Compared with existing technology of quantum dots, the utility model for high light source colour gamut realization independent of special material
With complicated micro-structure, reduce technique productions difficulty, while compared with technology of quantum dots, restricted by use environment it is small, can
To be applied in existing all types of display devices, and the material used in the utility model can be common benefit
Membrane material is repaid, so service life is unconfined；The device of the utility model is placed directly against on the outside of light source or display, just
It can use, therefore technique productions are very easy to.The optical texture of utility model device is simple, simple with the combination of light source,
It can be placed on the outermost of display, can also be placed in the backlight module of liquid crystal display, LED backlight can also be placed directly in
The luminous component front end in source, direct regulation and control send out the wave band of light.Compared with existing other optical texture technologies, the utility model can
To realize that colour gamut widens effect under existing process conditions.Using utility model device, may be implemented more than 140%NTSC
Colour gamut, the colour gamut than quantum dot film highest 110%NTSC is big very much, and the utility model can by it is lower at
It is original to realize preferably wide colour gamut effect.
Description of the drawings
Fig. 1 is that light source or display screen widen structure drawing of device with colour gamut；
Fig. 2 is the structure chart for four types for being polarized polarizing appliance；Wherein, Fig. 2 (a) is the structure chart of common polaroid,
Fig. 2 (b) is the structure chart for polarizing selector, and Fig. 2 (c) is the structure chart of wire grating, and Fig. 2 (d) is the knot of reflecting polarized wafer
Composition；
Fig. 3 is the relational graph of the birefringence and wavelength of a kind of phase delay chip (makrolon)；
Fig. 4 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 1；Wherein, Fig. 4 (a) be structure in there are one
The structure drawing of device of phase delay chip, Fig. 4 (b) are transmitted spectrum, and Fig. 4 (c) is gamut map
Fig. 5 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 2；Wherein, Fig. 5 (a) has one for second
The structure drawing of device of a phase delay chip, Fig. 5 (b) are transmitted spectrum, and Fig. 5 (c) is gamut map
Fig. 6 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 3；Wherein, Fig. 6 (a) is containing there are two phases
The structure drawing of device of position delay piece, Fig. 6 (b) are transmitted spectrum, and Fig. 6 (c) is gamut map
Fig. 7 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 4；Wherein, Fig. 7 (a) is containing there are three phases
The structure drawing of device of position delay piece, Fig. 7 (b) are transmitted spectrum, and Fig. 7 (c) is gamut map
Fig. 8 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 5；Wherein, Fig. 8 (a) is containing there are four phases
The structure drawing of device of position delay piece, Fig. 8 (b) are transmitted spectrum, and Fig. 8 (c) is gamut map
Fig. 9 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 6；Wherein, Fig. 9 (a) is that the first contains five
The structure drawing of device of a phase delay chip, Fig. 9 (b) are transmitted spectrum, and Fig. 9 (c) is gamut map
Figure 10 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 7；Wherein, Figure 10 (a) contains for second
The structure drawing of device of five phase delay chips, Figure 10 (b) are transmitted spectrum, and Figure 10 (c) is gamut map
Figure 11 is embodiment 8, and Figure 11 (a) is the structure drawing of device containing 9 phase delay chips, and Figure 11 (b) is transmitted light
Spectrum, Figure 11 (c) are gamut map
Figure 12 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 9；Wherein, Figure 12 (a) is that one kind containing 3
The structure drawing of device of a polaroid and 14 phase delay chips, Figure 12 (b) are transmitted light spectrogram, and Figure 12 (c) is gamut map
Figure 13 is structure drawing of device, transmitted spectrum and the gamut map in embodiment 10；Wherein, Figure 13 (a) contains for one kind
The structure drawing of device of 3 polaroids and 10 phase delay chips, Figure 13 (b) are transmitted light spectrogram, and Figure 13 (c) is gamut map.
Specific implementation mode
As shown in Figure 1, colour gamut, which widens device, can be used for various light source devices, for adjusting the Spectral Properties that light source is sent out
Property, widen the colour gamut of light source；Or various display devices are used for, for widening the display colour gamut of display.Colour gamut widens device
It is placed on above light source or display screen, is respectively to be polarized polarizing appliance 1 from bottom to top, phase delay chip group 2, analyzing polaroid 3,
The light transmission shaft for being polarized polarizing appliance 1 is parallel or vertical with the light transmission shaft of analyzing polaroid 3.There are one phase delay chip groups 2 or more
A phase delay chip composition, the optical axis (slow axis) of phase delay chip are parallel to delay plate plane, and material therefor can be various tools
There are the material of birefringence, generally inorganic crystal material and high-molecular organic material.Following embodiment has in the utility model
The birefringent material that body uses is makrolon, and light source is all made of full spectrum light source.
Fig. 2 is four types used for being polarized polarizing appliance 1 in the present apparatus.(a) it is common polaroid 11, natural light transmission
When, through the polarised light for being parallel to polaroid light transmission shaft, absorb the polarised light perpendicular to polaroid light transmission shaft, or display
The outer polaroid of device itself；(b) it is that polarization selector 12 is reflected through the polarised light for being parallel to the plane of incidence 121 perpendicular to incidence
The polarised light in face；(c) it is wire grating 13, through the polarised light perpendicular to metal wire 131, reflected parallel is in metal wire
Polarised light；(d) it is reflecting polarized wafer 14, there is 142 groups of optically anisotropic film layer 141 and optically isotropic film layer
At, a transmission-polarizing side equal with the refractive index of optically isotropic film in two refractive index of optical anisotropic film
To the polarised light for refractive index equal direction, the polarised light in another direction is reflected.The polarised light of all reflections can pass through
Speculum in light source or display backlight module reflects again to be used.Analyzing polaroid is generally absorption-type polarisation
Piece.Ideal polaroid is used in the present invention, it is any of the above to be polarized polarizing appliance and analyzing polarizing appliance, it is not examining
Consider the limited optical characteristic under the utilization power again of reflected light, the characteristic of as ideal polaroid：Through the line in a direction
Polarised light absorbs the linearly polarized light in another direction.
Fig. 3 is the birefringence and wavelength of a kind of phase delay chip (makrolon) used in the utility model patent
Between relationship, birefringence reduces with the increase of wavelength, and the thickness of the phase delay chip is in the feelings for being not added with specified otherwise
It is preferably 20 microns under condition.In the case where meeting optical device colour gamut and requiring, the birefringence of phase delay chip and wavelength
Relationship and its thickness are not limited by parameter here.
The polarizing appliance that is polarized arranged in parallel, phase delay chip group, analyzing polaroid are disposed in light path.Through
The polarization direction for being polarized the polarised light that polarizing appliance is utilized is defined as 0 degree, and (thoroughly in this, as each optical device optical axis below
Optical axis or postpone piece optical axis) orientation angles reference.Common absorption-type polaroid, polarization choosing can be divided by being polarized polarizing appliance
Device, wire grating or reflective polaroid are selected, for generating linearly polarized light.Analyzing polaroid uses absorption-type polaroid, inspection
Wilfully the light transmission axis direction of mating plate can be 0 or 90 degree, and light and coverage for penetrating required wavelength do not need the light of wavelength,
The light transmission axis direction of analyzing polaroid is other angles, then can not be blacked out the light for not needing wavelength, therefore can not reach
It widens and is abandoned to optimal colour gamut.Phase delay chip group, which is placed on, to be polarized between polarizing appliance and analyzing polaroid, to not
The polarised light of co-wavelength carries out phase-modulation, and to reach from the light that analyzing polaroid is emitted, the light of required wavelength has
Maximum transmission, while the transmitance of unnecessary portion wavelength light can be reduced or stop the transmission of unnecessary portion wavelength light.
Phase delay chip used in phase delay chip group is crystalline material or the phase delay chip of polymeric material,
Optical axis (special refractive index direction) is parallel to the plane of phase delay chip, and the preferably identical material of phase delay chip used makes
Diaphragm with identical birefringence and thickness.The quantity of phase delay chip used can be a piece of, two panels, three pieces, four, five
Piece can use many pieces as required.The retardation of phase delay chip used is in visible-range at least at 3 wavelength
The characteristic that full-wave plate is presented, can be expressed as：(k is integer to △ n*d/ λ=k, and △ n are the birefringence of phase delay chip, and d is
The thickness of phase delay chip), when λ is different value, k is also different value.When the linearly polarized light for being polarized polarizing appliance generation enters
Into phase delay chip group, the polarization state that the light of full-wave plate is presented does not change, and can keep the characteristic of linear polarization, other
The variation of polarization state may then occur for the light of wavelength, and polarization state is controlled by controlling the optical axis angle of phase delay chip
Variation, make it after by phase delay chip, polarization state and present full-wave plate light polarization state it is perpendicular.Thus
Optical axis is parallel or vertical to be polarized under the action of polarizing appliance and analyzing polaroid, is formed saturating to the selective wave band of visible light progress
It crosses, can also wave band adjustment be carried out to known various light sources, to obtain the broadening effect of colour gamut.
In optical band variation of the control through the device, transmitted spectrum can be reached by increasing phase delay chip thickness
Red shift, reduce phase delay chip thickness and reach the blue shift of transmitted spectrum, to realize the variation of spectrum three primary colours position.
The broadening characteristic of colour gamut, which further illustrates, to be realized to the utility model below in conjunction with the accompanying drawings.
Embodiment 1 rises wilfully if Fig. 4 (a) show the colour gamut structure drawing of device of the first phase delay chip containing there are one
The light transmission shaft of electro-optical device 1 is parallel with the light transmission shaft of analyzing polaroid 3 (angle is 0 degree), the preferred optic angle of phase delay chip 211
Degree is positive 45 degree or 45 degree minus, and two kinds of effect is identical；Phase delay chip is 4 grades of full-wave plates for 520 nanometers of light, that is, is used
Makrolon material, thickness are 20 microns (following embodiment also chooses this phase delay chip, and but not limited thereto).To visible
Natural light with identical luminous intensity in the case of different wave length in optical range, the polarization direction through light are 0 degree of direction, are penetrated
Rate and the relationship of wavelength such as Fig. 4 (b) are shown, and transmitance has peak value in 445,520 and 660 nanometers, and phase delay chip is to this
The light of several wavelength shows as full-wave plate characteristic, and phase delay chip will not change the polarization characteristic of these wavelength lights, therefore have
Maximum transmitance；There are the wavelength that transmitance is zero, phase delay chip to show as half to the light of these wavelength between peak value
The light that 0 degree of direction polarizes can be rotated to 90 degree of directions, to which tested wilfully mating plate absorbs and cannot penetrated by wave plate characteristic；
The light of other wavelength is changed polarization state and polarization direction, is penetrated to which tested wilfully filter portion absorbs part；This kind of light
Spectrum can be considered as the spectrum that red-green-blue is constituted, and shown in chromaticity coordinate such as Fig. 4 (c), which is
CIE1931 coordinate systems, the ratio between the gamut area of the spectrum and the gamut area of NTSC standard (1953) are 116%, that is to say, that
It is big by 16% that the colour gamut widens device gamut area obtained than traditional colour gamut control method, in terms of display display color
Display with more 16% color category.
Embodiment 2, as Fig. 5 (a) show second containing there are one the colour gamut structure drawing of device of phase delay chip, structures
Different from the only angle of analyzing polaroid of embodiment 1, the light transmission shaft angle of analyzing polaroid 31 is 90 degree, phase under this structure
The preferred thickness of position delay piece is 23.5 microns, shown in relationship such as Fig. 5 (b) of transmitance and wavelength, transmitance 405,450,
520 and 640 nanometers have peak value, shown in chromaticity coordinate such as Fig. 5 (c), the gamut area of the spectrum and the colour gamut of NTSC standard
Area ratio is 111%, slightly smaller compared to embodiment 1, but can still obtain the colour gamut face obtained than traditional colour gamut control method
The big result of product.
Embodiment 3, the content different from embodiment 1 is to have used two phase delay chips, shown in structure such as Fig. 6 (a),
The wherein preferred thickness of first phase delay piece 231 and second phase delay piece 232 is 20 microns, preferred optical axis angle difference
It is 22.5 and 67.5 degree, or is -22.5 and -67.5 degree, the optical axis angle tandem of two phase delay chips is exchanged, knot
Fruit is identical, and shown in relationship such as Fig. 6 (b) of transmitance and wavelength, compared to embodiment 1, the corresponding peak width at half height in each peak reduces
, the wavelength width that transmitance is zero increases, it may also be said to be red-green-blue color it is purer, chromaticity coordinate is such as
Shown in Fig. 6 (c), the ratio between the gamut area of the spectrum and the gamut area of NTSC standard are 128%.
Embodiment 4 increases a phase delay chip compared with Example 3, and as shown in Fig. 7 (a), first phase postpones piece
241, the preferred optical axis angle sequence of second phase delay piece 242 and third phase delay piece 243 is respectively 15,45 and 75 degree,
Or be -15, -45 and -75 degree, the optical axis angle of three phase delay chips is in sequence in turn, as a result identical, transmitance with
Shown in the relationship of wavelength such as Fig. 7 (b), the corresponding peak width at half height smaller in each peak, shown in chromaticity coordinate such as Fig. 7 (c), the light
The ratio between the gamut area of spectrum and the gamut area of NTSC standard are 137%.
Embodiment 5 increases a phase delay chip compared with Example 4, and as shown in Fig. 8 (a), first phase postpones piece
251, the preferred optical axis angle sequence of second phase delay piece 252, third phase delay piece 253 and the 4th phase delay chip 254
Respectively 11.25,33.75,56.25 and 78.75 degree, or be -11.25, -33.75, -56.25 and -78.75 degree, four phases
In sequence in turn, as a result identical, relationship such as Fig. 8 (b) of transmitance and wavelength is shown, color for the optical axis angle of position delay piece
It spends shown in coordinate such as Fig. 8 (c), the ratio between the gamut area of the spectrum and the gamut area of NTSC standard are 137%.
Embodiment 6 increases a phase delay chip compared with Example 5, and as shown in Fig. 9 (a), first phase postpones piece
261, second phase delay piece 262, third phase delay piece 263, the 4th phase delay chip 264 and the 5th phase delay chip 265
Preferred optical axis angle sequence be respectively 9,27,45,63 and 81 degree, or for -9, -27, -45, -63 and -81 spend, five phases
In sequence in turn, as a result identical, relationship such as Fig. 9 (b) of transmitance and wavelength is shown, coloration for the optical axis angle of delay piece
Shown in coordinate such as Fig. 9 (c), the ratio between the gamut area of the spectrum and the gamut area of NTSC standard are 139%.
Embodiment 7, it is identical as phase delay chip quantity used in embodiment 6, as shown in Figure 10 (a), difference first
Phase delay chip 271, second phase delay piece 272, third phase delay piece 273, the 4th phase delay chip 274 and the 5th phase
The preferred optical axis angle sequence for postponing piece 275 is respectively 45,90,45,0 and 45 degree, or is -45,90, -45,0 and -45 degree,
Second and the 4th the optical axis angle of phase delay chip exchange, it is as a result identical, shown in relationship such as Figure 10 (b) of transmitance and wavelength,
Shown in its chromaticity coordinate such as Figure 10 (c), the ratio between the gamut area of the spectrum and the gamut area of NTSC standard are 136%, the knot
Compared with Example 6, gamut area is slightly smaller for structure.
Embodiment 8 realizes the broadening effect of colour gamut using 9 phase delay chips, and as shown in Figure 11 (a), first phase is prolonged
The preferred optical axis angle sequence of slow 281 to the 9th phase delay chip 289 of piece be respectively (2k-1) × 5 degree (k=1,2 ... 9), or
Person is-(2k-1) × 5 degree (i.e. specific respectively 1*90/18 degree, 3*90/18 degree ... the degree ... of (2k-1) * 90/18 17*90/18
Degree), sequence is in turn, as a result identical, shown in relationship such as Figure 11 (b) of transmitance and wavelength, chromaticity coordinate such as Figure 11 (c) institutes
Show, the ratio between the gamut area of the spectrum and the gamut area of NTSC standard are 142.5%.
As shown in Figure 12 (a), polarizing appliance is polarized using one using the superposition of embodiment 6 and embodiment 8 for embodiment 9
With two analyzing polaroids, the structure of embodiment 6 and the structure of embodiment 8 share intermediate analyzing polaroid 3, two embodiments
Structure upper and lower position exchange, it is as a result identical, shown in relationship such as Figure 12 (b) of transmitance and wavelength, chromaticity coordinate such as Figure 12
(c) shown in, the ratio between the gamut area of the spectrum and the gamut area of NTSC standard are 148%.
As shown in Figure 13 (a), polarizing appliance and two are polarized using one using the superposition of 2 embodiments 7 for embodiment 10
The structure of a analyzing polaroid, 2 embodiments shares intermediate analyzing polaroid 3, relationship such as Figure 13 (b) of transmitance and wavelength
Shown, the small peak between two transmitance peak values in 7 result of embodiment is without chromaticity coordinate as we can see from the figure
As shown in Figure 13 (c), the ratio between the gamut area of the spectrum and the gamut area of NTSC standard are 146%, compared to embodiment 7
136% increases 10%.
Basic structure in other utilization the utility model patent uses other quantity phase delay chips, and uses two
Embodiment or more embodiment combines to realize the structure for widening colour gamut, belongs to the utility model patent scope.
The utility model unaccomplished matter is known technology.
Claims (6)
1. a kind of colour gamut widens device, it is characterized in that the group of the device becomes：
On optical path direction, it is disposed with and arranged in parallel is polarized polarizing appliance and M the first basic units；First is substantially single
Member includes phase delay chip group and analyzing polarizing appliance, M=1 ~ 5；
The polarizing appliance that is polarized is absorption-type polaroid, polarization selector, wire grating or reflective polaroid；
The analyzing polarizing appliance is absorption-type polaroid, polarization selector, wire grating or reflective polaroid；
The polarization light polarization direction for being polarized polarizing appliance outgoing is 0 degree；
The light transmission shaft angle of the analyzing polarizing appliance is 0 degree or 90 degree；
The phase delay chip group is made of the identical phase delay chip of N pieces arranged in parallel, the integer of N=1 ~ 20；
In the phase delay chip group, the Axis Azimuth angle of every phase delay chip is：±[(2K-1)*90/(2N)] +m
Degree；Wherein, K is the secondary ordinal number of phase delay chip, m=- 10 ~ 10；In the angle being related to while just or to be simultaneously negative；
Alternatively, when the N multiples for being 4 add 1, in phase delay chip group, from first phase delay chip, every 4 phase delay
The Axis Azimuth angle of piece is followed successively by ± 45 degree, 90 degree, ± 45 degree, 0 degree；The optical axis angle of the last one phase delay chip be ±
45 degree；In the angle being related to while just or to be simultaneously negative.
2. colour gamut as described in claim 1 widens device, it is characterized in that the phase delay chip is in visible-range
The a certain single-wavelength light that interior wavelength is 500 nanometers -550 nanometers is multistage full-wave plate, and wave plate series is in the range of 2 ~ 9.
3. colour gamut as described in claim 1 widens device, it is characterized in that in the phase delay chip group, phase therein is prolonged
Slow piece puts in order with after optical axis angle determination, and phase delay chip group can be that all sequence is arranged forward or backwards in a device
Row.
4. colour gamut as described in claim 1 widens device, it is characterized in that the light transmission shaft angle of the analyzing polarizing appliance is 0
Degree.
5. colour gamut as described in claim 1 widens device, it is characterized in that phase delay chip in the phase delay chip group
The piece number is 1 ~ 5.
6. colour gamut as described in claim 1 widens device, it is characterized in that phase delay chip in the phase delay chip group
In Axis Azimuth angle, m=0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030917.XU CN207636884U (en) | 2018-01-09 | 2018-01-09 | A kind of colour gamut widens device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820030917.XU CN207636884U (en) | 2018-01-09 | 2018-01-09 | A kind of colour gamut widens device |
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| CN207636884U true CN207636884U (en) | 2018-07-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051947A (en) * | 2018-01-09 | 2018-05-18 | 河北工业大学 | A kind of colour gamut widens device |
| CN113848649A (en) * | 2021-10-13 | 2021-12-28 | 北京至格科技有限公司 | Selective absorption and transmittance-adjustable optical device and augmented reality device |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051947A (en) * | 2018-01-09 | 2018-05-18 | 河北工业大学 | A kind of colour gamut widens device |
| CN108051947B (en) * | 2018-01-09 | 2024-04-12 | 河北工业大学 | Color gamut widening device |
| CN113848649A (en) * | 2021-10-13 | 2021-12-28 | 北京至格科技有限公司 | Selective absorption and transmittance-adjustable optical device and augmented reality device |
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Granted publication date: 20180720 |