CN108616708A - A kind of television set and its LCD display device - Google Patents
A kind of television set and its LCD display device Download PDFInfo
- Publication number
- CN108616708A CN108616708A CN201810767092.4A CN201810767092A CN108616708A CN 108616708 A CN108616708 A CN 108616708A CN 201810767092 A CN201810767092 A CN 201810767092A CN 108616708 A CN108616708 A CN 108616708A
- Authority
- CN
- China
- Prior art keywords
- light
- television set
- guide plate
- transition material
- organic fluorescence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a kind of television set and its LCD display devices,The television set includes shell and the processor that is set in shell,The LCD display device being connect with processor,The LCD display device includes back light source structure and LCD modules,The back light source structure includes backboard,The reflector being successively set on backboard,Light guide plate and brightness enhancement film and multiple LED illuminating parts in light guide plate side are set,It further include the optical color conversion film being arranged between the light guide plate and brightness enhancement film,The optical color conversion film includes resin base membrane layer and is arranged coating layer in resin base membrane layer upper and lower surface,The coating layer includes the multiple diffused components for being adhered to the solidification colloid layer of the corresponding resin basement membrane layer surface and being evenly distributed in solidification colloid layer,The resin base membrane layer includes the resin basement membrane containing organic fluorescence transition material.Excitation purity, light efficiency, brightness, light transmittance and the NTSC color gamut of the white light sent out can be improved in the present invention, and low energy consumption, energy conservation and environmental protection, at low cost.
Description
【Technical field】
The present invention relates to full-color display back light source technique fields, more particularly, to a kind of television set and its LCD (liquid crystals
Show) display equipment.
【Background technology】
LCD is the widest flat panel display technology of current application, for the LCD display device of currently used television set,
Generally use white light LED backlight structure provides backlight, and traditional white light LED backlight structure is broadly divided into following three kinds：
(1) blue-light LED chip excites yellow inorganic fluorescent powder structure；
(2) UV LED chip excites redgreenblue inorganic fluorescent powder structure simultaneously；
(3) redgreenblue LED integrated morphologies.
However, there are some apparent defects for above-mentioned three kinds common white light LED backlights.Wherein, back light source structure (1)
It is the simplest, but its spectrum is very dull, and color rendition degree is poor, and the white light generated is through the formed three primary colours of optical filter
In, in addition to blue light, red green purity and efficiency are undesirable, are not the optimal selections of LCD backlight.The color of back light source structure (2)
Color relative abundance, but as a result of ultraviolet light as fluorescence excitation source, larger to the harm of naked eyes, Related product is at present
It is not mature enough.Back light source structure (3) current comparative maturity has some applications in plane display field, but its structure composition is multiple
It is miscellaneous, prepare cumbersome, production cost is relatively high.
【Invention content】
It is an object of the invention to overcome the shortcomings of above-mentioned technology, providing a kind of having higher excitation purity, light efficiency and bright
The television set and its LCD display device of degree and low cost.
The first aspect of the present invention provide a kind of television set, including shell and be set in shell processor, with
The LCD display device of processor connection, the LCD display device includes back light source structure and LCD modules, the back light source structure
Including backboard, the reflector being successively set on backboard, light guide plate and brightness enhancement film and multiple LED in light guide plate side are set
Illuminating part, further includes the optical color conversion film being arranged between the light guide plate and brightness enhancement film, and the optical color conversion film includes resin
Base membrane layer and coating layer in resin base membrane layer upper and lower surface is set, the coating layer includes being adhered to corresponding institute
The multiple diffused components stated the solidification colloid layer of resin basement membrane layer surface and be evenly distributed in solidification colloid layer, the resin
Base membrane layer includes the resin basement membrane containing organic fluorescence transition material.
Further, the organic fluorescence transition material includes that feux rouges organic fluorescence transition material and green light organic fluorescence turn
Conversion materials.
Further, the luminescence peak of the feux rouges organic fluorescence transition material is 615-625nm, and the green light is organic glimmering
The luminescence peak of light conversion material is 520-530nm.
Further, the mass ratio of the relatively described resin basement membrane of the feux rouges organic fluorescence transition material focuses on 1/
Between, the mass ratio of the relatively described resin basement membrane of green light organic fluorescence transition material focuses on 1/
Between.
Further, the LED illuminating parts include the transparent enclosure glue-line in LED chip and setting LED chip.
Further, the LED chip is blue-light LED chip, and the luminescence peak of the blue-light LED chip is 400-
500nm。
Further, the luminescence peak of the blue-light LED chip is 460-470nm.
Further, the diffused component includes diffusion particle, a diameter of 2-30 μm of the diffusion particle.
Further, the thickness of the resin basement membrane is 45-55 μm.
A kind of LCD display device that the second aspect of the present invention provides, including back light source structure and LCD modules, the back of the body
Reflector, light guide plate and the brightness enhancement film and be arranged in light guide plate side that light-source structure includes backboard, is successively set on backboard
Multiple LED illuminating parts, further include the optical color conversion film being arranged between the light guide plate and brightness enhancement film, the optical color conversion film
Including resin base membrane layer and coating layer in resin base membrane layer upper and lower surface is set, the coating layer includes being adhered to
The solidification colloid layer of the corresponding resin basement membrane layer surface and the multiple diffused components being evenly distributed in solidification colloid layer,
The resin base membrane layer includes the resin basement membrane containing organic fluorescence transition material.
Implement the present invention, excitation purity, light efficiency, brightness, light transmittance and the NTSC color gamut of the white light sent out can be improved, it can be substantially
Degree promotes color rendition degree, and low energy consumption, energy conservation and environmental protection, at low cost, is damaged to human eyesight small.
【Description of the drawings】
Fig. 1 is a kind of block diagram representation for television set that one embodiment of the invention provides；
Fig. 2 is the decomposition diagram of the back light source structure of the LCD display device of television set shown in Fig. 1；
Fig. 3 is the schematic cross-sectional view of the optical color conversion film of back light source structure shown in Fig. 2；
Fig. 4 is the white-light spectrum curve graph of the back light source structure of an embodiment shown in Fig. 2 in normal operation.
【Specific implementation mode】
The invention will be further described with reference to the accompanying drawings and examples.
With reference to figure 1, a kind of television set that one embodiment of the invention provides, including shell and the processing that is set in shell
Device 1, memory 2, wireless communication module 3, LCD display device 4.Memory 2, wireless communication module 3, LCD display device 4 are distinguished
It is connect with processor 1.
With reference to figure 2, LCD display device 4 includes back light source structure and the LCD modules being arranged on back light source structure.Backlight
Source structure provides backlight to LCD modules.Back light source structure includes backboard 10, is successively set on backboard 10 reflector 11 is led
Tabula rasa 12, optical color conversion film 13 and brightness enhancement film 14 and it is arranged in light guide plate 12 side to the multiple of the horizontal projection of light guide plate 12
LED illuminating parts 15.Luminous (that is, in-plane where light guide plate 12) in the horizontal direction of LED illuminating parts 15 enters light guide plate
12, vertical direction transmitting (that is, perpendicular to direction of light guide plate 12) is converted in light guide plate 12.Reflector 11 is used for downward
The light of transmitting is reflected to ensure that all light all emit upwards.Optical color conversion film 13 from 12 Vertical Launch of light guide plate for that will go out
The light come carries out Color Conversion and the light for making Vertical Launch come out is evenly distributed in entire plane.Brightness enhancement film 14 is used for will be oblique
The light of transmitting switchs to emit to surface.
LED illuminating parts 15 include LED chip and the transparent enclosure glue-line being arranged in LED chip.LED chip is preferably
Blue-light LED chip.The luminescence peak of blue-light LED chip is 400-500nm (nanometer), and the present embodiment blue-light LED chip shines
Peak value is preferably 460-470nm.Luminescence peak is danger of the blue chip to the fundus flavimaculatus of human eye of 460-470nm, that is, long wavelength
Evil is smaller, relative to the blue chip of the relatively low i.e. short wavelength of other peak luminous wavelengths, under the premise of not losing display effect
It can effectively reduce in light source to being damaged caused by human eyesight, protect the health of human eye.
With reference to figure 3, optical color conversion film 13 include resin base membrane layer 131 and setting in 131 upper surface of resin base membrane layer and
The coating layer 132 of lower surface.Coating layer 132 include be adhered to the solidification colloid layer 133 on corresponding 131 surface of resin base membrane layer with
And it is evenly distributed to multiple diffused components 134 in solidification colloid layer 133.The number of diffused component 134 can be according to resin basement membrane
The actual size of layer 131 is configured.It includes solidification colloid to cure colloid layer 133, and solidification colloid preferably binds resin, bonding
Resin has the characteristic of good ultra-violet curing or heat cure, convenient for solidification.Cure colloid layer 133 to be used for diffused component 134
It is fixedly attached to the surface of resin base membrane layer 131.Diffused component 134 makes light for being had an impact to the transmission of light and diverging
Line is uniformly spread.Diffused component 134 includes diffusion particle.Diffusion particle be preferably PMMA (polymethyl methacrylate) particles or
PS (polystyrene) particle etc..A diameter of 2-30 μm of diffusion particle, preferably 15 μm.Type, the diameter of diffusion particle
It can be selected according to actual conditions.
Resin base membrane layer 131 includes the resin basement membrane containing organic fluorescence transition material.Resin basement membrane is preferably light transmittance
Thin polymer film higher than 90%, such as polyester (PET) film, light transmission is good, at low cost.The thickness of resin basement membrane is 45-
55 μm (microns), preferably 50 μm.The thickness of resin basement membrane can be selected according to actual conditions.
Resin basement membrane is produced as follows：By resin basement membrane masterbatch such as polyester (PET) film masterbatch and organic fluorescence
Transition material mixes, and by stirring or shaking, so that the two is sufficiently mixed in the solid state, then mixture is heated up to melt
State stirs repeatedly, and organic fluorescence transition material is made to be evenly distributed in resin basement membrane masterbatch, then using conventional resin basement membrane
Preparation method is made such as rolling process, the tape casting, blow moulding, pulling method.
In the present embodiment, organic fluorescence transition material includes feux rouges organic fluorescence transition material and the conversion of green light organic fluorescence
Material.Feux rouges organic fluorescence transition material is focused on respect to the mass ratio of resin basement membrane between 1/100000-1/10000.Feux rouges has
The luminescence peak of machine fluorescence transition material is 615-625nm, and has stronger light absorpting ability in the wavelength period of 520-530nm.
Green light organic fluorescence transition material is focused on respect to the mass ratio of resin basement membrane 131 between 1/10000-1/1000.Green light is organic glimmering
The luminescence peak of light conversion material is 520-530nm, and has stronger light absorpting ability in the wavelength period of 460-470nm.Green light
Organic fluorescence transition material can emit blue-light LED chip and some blue light launched through light guide plate 12 passes through luminescence generated by light
Mode be changed into green emission.Feux rouges organic fluorescence transition material can be by the portion by the transformation of green light organic fluorescence transition material
Green light is divided to be changed into feux rouges by way of luminescence generated by light.By adjusting the ratio of green light and feux rouges organic fluorescence transition material,
Blue light, feux rouges and the green light of transmitting standard proportional can be achieved.Turned by the blue and green light organic fluorescence that blue-light LED chip emits
The green light of conversion materials transformation and the feux rouges of feux rouges organic fluorescence transition material transformation are greatly improved the white light of back light source structure
Excitation purity, light efficiency and brightness, reduce energy consumption, relatively traditional back light source structure can save the energy consumption of 15%-50%, at
This is low, and performance is stablized.And the green light and feux rouges organic fluorescence transition material changed by green light organic fluorescence transition material
The feux rouges of transformation is with higher color saturation and colour gamut, it can be achieved that 90% or more NTSC (National Television Selection committees
Member's meeting) colour gamut.For inorganic fluorescent material, organic fluorescence materials for different wave length blue-light LED chip compatibility compared with
By force, can arrange in pairs or groups long wavelength's blue light of 460-470nm, more healthy eyeshield；Hold simultaneously using organic fluorescence transition material is opposite
Easy natural degradation, will not be detrimental to health and environment, strong applicability.
Fig. 4 be the use of luminescence peak is 460nm blue-light LED chip, luminescence peak be 530nm green light organic fluorescence turn
The back light source structure that conversion materials and the feux rouges organic fluorescence transition material that luminescence peak is 622nm combine is in normal operation
White-light spectrum curve graph.Green light organic fluorescence transition material is 1/1000 relative to the quality proportion of resin basement membrane, and feux rouges has
Machine fluorescence transition material is 1/100000 relative to the quality proportion of resin basement membrane.In white-light spectrum curve graph, horizontal axis indicates
Spectral wavelength, that is, luminescence peak, the longitudinal axis indicate spectral intensity.As can be seen that back light source structure through the invention emits from figure
The spectrum of white light out is wider, distribution more balances, and has higher luminous efficiency.
By above-mentioned back light source structure, LCD display device 4 of the invention may be implemented >=90% or even 100%
NTSC color gamut, and the trichromatic excitation purity of RGB is greatly improved, performance is stablized, energy saving, while the light transmittance of light is obtained
It is promoted, light transmittance can promote 25% or more.
By the LCD display device 4 of the present invention and the existing LCD for doing backlight with traditional white light LED backlight structure
Display equipment is compared, and contrast effect is as shown in the table：
As it can be seen that the LCD display device 4 of the present invention is greatly improved excitation purity, light efficiency, brightness, light transmittance and NTSC color gamut,
It is highly practical.
Above example only expresses the preferred embodiment of the present invention, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, it is such as special to the difference in each embodiment
Sign is combined, and these are all within the scope of protection of the present invention.
Claims (10)
1. a kind of television set, including shell and the processor being set in shell, the LCD display device being connect with processor,
The LCD display device includes back light source structure and LCD modules, and the back light source structure includes backboard, is successively set on backboard
On reflector, light guide plate and brightness enhancement film and multiple LED illuminating parts in light guide plate side are set, it is characterised in that：Also wrap
The optical color conversion film being arranged between the light guide plate and brightness enhancement film is included, the optical color conversion film includes resin base membrane layer and sets
The coating layer in resin base membrane layer upper and lower surface is set, the coating layer includes being adhered to the corresponding resin base membrane layer
The solidification colloid layer on surface and the multiple diffused components being evenly distributed in solidification colloid layer, the resin base membrane layer include containing
There is the resin basement membrane of organic fluorescence transition material.
2. television set according to claim 1, it is characterised in that：The organic fluorescence transition material includes that feux rouges is organic glimmering
Light conversion material and green light organic fluorescence transition material.
3. television set according to claim 2, it is characterised in that：The luminescence peak of the feux rouges organic fluorescence transition material
Luminescence peak for 615-625nm, the green light organic fluorescence transition material is 520-530nm.
4. television set according to claim 2, it is characterised in that：The relatively described tree of feux rouges organic fluorescence transition material
The mass ratio of aliphatic radical film focuses between 1/100000-1/10000, the relatively described resin base of green light organic fluorescence transition material
The mass ratio of film focuses between 1/10000-1/1000.
5. television set according to claim 1, it is characterised in that：The LED illuminating parts include LED chip and setting
Transparent enclosure glue-line in LED chip.
6. television set according to claim 5, it is characterised in that：The LED chip is blue-light LED chip, the blue light
The luminescence peak of LED chip is 400-500nm.
7. television set according to claim 6, it is characterised in that：The luminescence peak of the blue-light LED chip is 460-
470nm。
8. television set according to claim 1, it is characterised in that：The diffused component includes diffusion particle, the diffusion
A diameter of 2-30 μm of particle.
9. television set according to claim 1, it is characterised in that：The thickness of the resin basement membrane is 45-55 μm.
10. a kind of LCD display device, including back light source structure and LCD modules, the back light source structure include backboard, set successively
It sets the reflector on backboard, light guide plate and brightness enhancement film and multiple LED illuminating parts in light guide plate side is set, feature exists
In：Further include the optical color conversion film being arranged between the light guide plate and brightness enhancement film, the optical color conversion film includes resin basement membrane
Layer and coating layer in resin base membrane layer upper and lower surface is set, the coating layer includes being adhered to the corresponding tree
The solidification colloid layer of aliphatic radical film surface and the multiple diffused components being evenly distributed in solidification colloid layer, the resin basement membrane
Layer includes the resin basement membrane containing organic fluorescence transition material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308195 | 2018-04-08 | ||
| CN2018103081954 | 2018-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108616708A true CN108616708A (en) | 2018-10-02 |
Family
ID=63666416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810767092.4A Withdrawn CN108616708A (en) | 2018-04-08 | 2018-07-13 | A kind of television set and its LCD display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108616708A (en) |
-
2018
- 2018-07-13 CN CN201810767092.4A patent/CN108616708A/en not_active Withdrawn
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181002 |