CN108761920A - A kind of LCD display device and its display module - Google Patents
A kind of LCD display device and its display module Download PDFInfo
- Publication number
- CN108761920A CN108761920A CN201810794536.3A CN201810794536A CN108761920A CN 108761920 A CN108761920 A CN 108761920A CN 201810794536 A CN201810794536 A CN 201810794536A CN 108761920 A CN108761920 A CN 108761920A
- Authority
- CN
- China
- Prior art keywords
- upper substrate
- liquid crystal
- display device
- lcd display
- led chip
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- G02F1/133621—Illuminating devices providing coloured light
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to a kind of LCD display device and its display modules, the LCD display device includes display module, the display module includes back light source structure and the liquid crystal module that is arranged on back light source structure, the back light source structure includes multiple LED illuminating parts and optical functional film, the liquid crystal module includes upper substrate and the upper polaroid that is arranged on upper substrate, the one side close to the upper polaroid of the upper substrate is equipped with colored filter, and the LED illuminating parts include LED chip and the encapsulation glue-line containing red inorganic fluorescent powder being arranged in LED chip；The colored filter includes blue filter film, green filter film and red filter film, and the green filter film is coated with green light organic fluorescence transition material close to the one side of the upper substrate.Light efficiency, brightness, color saturation, excitation purity, light transmittance and the NTSC color gamut of the white light sent out can be improved in the present invention, and low energy consumption, at low cost.
Description
【Technical field】
The present invention relates to full-color display back light source technique fields, are shown more particularly, to a kind of and LCD (liquid crystal display)
Equipment and its display module.
【Background technology】
LCD is the widest flat panel display technology of current application, for currently used LCD display device, as mobile phone is aobvious
Display screen, television display screen, tablet personal computer display screen etc., display module generally includes back light source structure and liquid crystal module.
After RGB filter coatings of the backlight that the back light source structure of traditional display module provides Jing Guo liquid crystal module, the low, color with light intensity
The disadvantages such as color saturation degree is low, excitation purity is low, light transmittance is low, while energy consumption is big, the NTSC of realization (entrust by (U.S.) national television standard
Member's meeting) colour gamut is low.
【Invention content】
It is an object of the invention to overcome the shortcomings of above-mentioned technology, providing a kind of having specular removal, high color saturation, low
The LCD display device and its display module of energy consumption and high NTSC color gamut.
The first aspect of the present invention provides a kind of LCD display device, including display module, the display module include backlight
Source structure and the liquid crystal module being arranged on back light source structure, the back light source structure include multiple LED illuminating parts and optics
Function film, the liquid crystal module include upper substrate and the upper polaroid that is arranged on upper substrate, the upper substrate it is close
The one side of the upper polaroid is equipped with colored filter, and the LED illuminating parts include LED chip and are arranged in LED chip
The encapsulation glue-line containing red inorganic fluorescent powder；The colored filter includes blue filter film, green filter film and red
Color filter coating, the green filter film are coated with green light organic fluorescence transition material close to the one side of the upper substrate.
Further, the luminescence peak of the green light organic fluorescence transition material is 520-530nm.
Further, the luminescence peak of the red inorganic fluorescent powder is 615-625nm.
Further, the mass ratio of the relatively described encapsulation glue-line of the red inorganic fluorescent powder focuses between 10%-40%.
Further, the LED chip is blue-light LED chip.
Further, 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 liquid crystal module further includes the down polaroid being successively set on the back light source structure, lower base
Plate and liquid crystal layer, the upper substrate setting is on the liquid crystal layer；The one side close to the down polaroid of the lower substrate
Equipped with thin-film transistor circuit.
Further, the lower substrate close to the one side of the liquid crystal layer, the upper substrate close to the liquid crystal layer
One side be equipped with groove structure；The groove structure is equipped with alignment film.
The second aspect of the present invention provides a kind of display module, including back light source structure and setting are on back light source structure
Liquid crystal module, the back light source structure includes multiple LED illuminating parts and optical functional film, and the liquid crystal module includes upper base
The one side close to the upper polaroid of plate and the upper polaroid being arranged on upper substrate, the upper substrate is equipped with colorized optical filtering
Piece, the LED illuminating parts include LED chip and the encapsulation glue-line containing red inorganic fluorescent powder being arranged in LED chip；
The colored filter includes blue filter film, green filter film and red filter film, and the green filter film is close to described
The one side of upper substrate is coated with green light organic fluorescence transition material.
Implement the present invention, light efficiency, brightness, color saturation, excitation purity, light transmittance and the NTSC of the white light sent out can be improved
Colour gamut, low energy consumption, energy conservation and environmental protection, at low cost.
【Description of the drawings】
Fig. 1 is a kind of structural schematic diagram of the display module for LCD display device that one embodiment of the invention provides；
Fig. 2 is the decomposition diagram of the back light source structure of display module shown in Fig. 1；
Fig. 3 is the decomposition diagram of the liquid crystal module of display module shown in Fig. 1；
Fig. 4 be the backlight that provides of back light source structure shown in Fig. 3 by upper substrate blue filter film, green filter film with
And the schematic diagram of red filter film；
Fig. 5 is the curve synoptic diagram of the light spectrum of the rgb pixel point of display module shown in Fig. 1.
【Specific implementation mode】
The invention will be further described with reference to the accompanying drawings and examples.
With reference to figure 1, it is aobvious to can be used as mobile phone display screen, television set for a kind of LCD display device that one embodiment of the invention provides
Display screen, tablet personal computer display screen etc..The LCD display device includes display module.Display module include back light source structure 10 and
The liquid crystal module 30 being arranged on back light source structure 10.Back light source structure 10 provides backlight to liquid crystal module 30.
With reference to figure 2, back light source structure 10 includes multiple LED illuminating parts 16 and optical functional film.Optical functional film packet
Include backboard 11, the reflector being successively set on backboard 11 12, light guide plate 13, diffusion barrier 14 and brightness enhancement film 15.Multiple LED shine
Part 16 is arranged in the side of light guide plate 13 and is projected to light guide plate 13 is horizontal.LED illuminating parts 16 it is luminous in the horizontal direction (that is,
In-plane where light guide plate 12) enter light guide plate 13, be converted in light guide plate 13 vertical direction transmitting (that is, perpendicular to
The direction of light guide plate 12).Reflector 12 is reflected for the opposite lower light emitted to ensure that all light all emit upwards.Diffusion
Film 14 is used to the light come out from 13 Vertical Launch of light guide plate being evenly distributed on entire plane.Brightness enhancement film 15 is used for oblique hair
The light penetrated switchs to emit to surface.
LED illuminating parts 16 include LED chip and the packaging plastic containing red inorganic fluorescent powder being arranged in LED chip
Layer.In the present embodiment, LED chip is blue-light LED chip.The luminescence peak of blue-light LED chip is 400-500nm (nanometer), this
The luminescence peak of the blue-light LED chip of embodiment is preferably 460-470nm.Luminescence peak is the indigo plant of 460-470nm, that is, long wavelength
Optical chip is smaller to the harm of the fundus flavimaculatus of human eye, the blue light core relative to the relatively low i.e. short wavelength of other peak luminous wavelengths
Piece can effectively reduce in light source to being damaged caused by human eyesight under the premise of not losing display effect, protect human eye
Health, reduce the pollution of blue light.
The luminescence peak of red inorganic fluorescent powder is 615-625nm.The relatively described encapsulation glue-line of red inorganic fluorescent powder
Mass ratio focuses between 10%-40%.Red inorganic fluorescent powder has the ability compared with strong light absorption in the wavelength period of 460-470nm,
The some blue light that blue-light LED chip is sent out can be changed into feux rouges by the physical process of luminescence generated by light.It is red inorganic glimmering
The material of light powder is usually sulfide systems material.In practical applications, by adjusting the content of red inorganic fluorescent powder and not
With manufacturing process, it can be achieved that reconciling customization to LED light spectrum.
Some blue light is changed by the blue light that blue-light LED chip is sent out after the encapsulation glue-line containing red inorganic fluorescent powder
Feux rouges, thus the light that LED illuminating parts 16 are sent out is the combination (see Fig. 4) of blue light and feux rouges, blue light and feux rouges are successively through light guide plate
13, can be that liquid crystal module 30 provide uniform backlight after diffusion barrier 14 and brightness enhancement film 15.
With reference to figure 3, liquid crystal module 30 include be successively set on down polaroid 31 on back light source structure 10, lower substrate 32,
Liquid crystal layer 33, upper substrate 34 and upper polaroid 35.Lower substrate 32, upper substrate 34 are all glass plate.The close liquid of lower substrate 32
The close liquid crystal layer 33 when, upper substrate 34 of crystal layer 33 while be equipped with groove structure (being not shown on figure).On groove structure
It (is not shown on figure) equipped with alignment film, can allow liquid crystal molecule in liquid crystal layer 33 structure proper alignment along groove.
The one side of the close down polaroid 31 of lower substrate 32 is equipped with thin film transistor (TFT) (TFT) circuit (being not shown on figure), uses
In driving liquid crystal pixel point.The one side of the close upper polaroid 35 of upper substrate 34 is equipped with colored filter.Colored filter includes
Blue filter film 341, green filter film 342 and the red filter film 343 being closely arranged side by side along the length direction of upper substrate 34.
In other embodiments, blue filter film 341, green filter film 342 and red filter film 343 can also be along the width of upper substrate 34
Degree direction is closely arranged side by side.The arrangement mode of blue filter film 341, green filter film 343 and red filter film 343 can basis
Actual conditions are selected, and the arrangement mode of three does not constitute the limitation of the present invention.Red filter film 343, green filter film 342
Tri- sub- pixels of RGB that each pixel with blue filter film 341 and liquid crystal display panel includes horizontal space one by one
It is corresponding, to by light play a role in filtering, i.e., red filter film 343 allows feux rouges to pass through, 342 permissions of green filter film
Green light passes through, and blue filter film 341 allows blue light to pass through.Red filter film 343, green filter film 342 and blue filter film
341 preparation means generally include pigment dispersion method, decoration method, print process and electric work method.
The one side of the close upper substrate 34 of green filter film 342 is coated with green light organic fluorescence transition material 344 (see figure
4).The luminescence peak of green light organic fluorescence transition material 344 is 520-530nm.Green light organic fluorescence transition material 344 is in 460-
The wavelength period of 470nm has stronger light absorption, and the blue light in the backlight of the offer of back light source structure 10 can be made to pass through luminescence generated by light
Mode is completely reformed into green light (see Fig. 4), and passes through green filter film 342.Green light organic fluorescence transition material 344 for
Compatible stronger, the long wavelength's blue light for the 460-470nm that can arrange in pairs or groups of different wave length blue-light LED chip, more healthy eyeshield；Together
When use 344 relatively easy natural degradation of green light organic fluorescence transition material, will not be detrimental to health and environment, applicability
By force.
In conjunction with shown in Fig. 4, the blue light and feux rouges in the backlight that back light source structure 10 provides are by after red filter film 343
Remaining feux rouges, blue light and feux rouges pass through green filter film 342 by remaining blue light after blue filter film 341, blue light and feux rouges
When, due to the green light organic fluorescence transition material 344 coated on green filter film 342, blue light can be completely reformed into green light,
Thus pass through remaining green light after green filter film 342, and for relatively traditional display module, back light source structure 10 of the invention
For the backlight of offer after the colored filter Jing Guo liquid crystal module 30, light intensity residue 1/2 greatly improves the utilization of backlight
Rate improves brightness, and the excitation purity of the green light changed by green light organic fluorescence transition material 344 also compares traditional show
Show that module has larger promotion, and in the case of same brightness, energy consumption can be down to the 50% of traditional display module, drop
Low cost.Simultaneously using the green light of the transformation of green light organic fluorescence transition material 344 and through the transformation of red inorganic fluorescent powder
The color saturation of feux rouges, green light and feux rouges it is high, it can be achieved that 90% or more NTSC color gamut.
Fig. 5 is the curve comparison schematic diagram of the light spectrum of the rgb pixel point of the display module of LCD display device.Wherein
Long dotted line in figure represents the display module of the present invention, and the back light source structure 10 of the display module is using luminescence peak
The encapsulation glue-line containing red inorganic fluorescent powder of the blue-light LED chip+622nm of 460nm, liquid crystal module 30 use luminescence peak
For the green light organic fluorescence transition material 344 of 530nm.The quality proportion of the opposite encapsulation glue-line of red inorganic fluorescent powder is 30%.
And the short dash line in figure then represents traditional display module.In the curve comparison schematic diagram of light spectrum it can clearly be seen that
The transmitance higher for the light that display module through the invention issues, monochromaticjty is more preferable, has higher luminous efficiency.
By above-mentioned display module, >=90% or even 100% NTSC colors may be implemented in LCD display device of the invention
Domain, and the trichromatic excitation purity of RGB is greatly improved, performance is stablized, energy saving, while the light transmittance of light is got a promotion.
The LCD display device of the present invention is compared with traditional LCD display device, contrast effect such as following table institute
Show：
As it can be seen that the LCD display device of the present invention is greatly improved light efficiency, brightness, color saturation, excitation purity, light transmittance
And NTSC color gamut, highly practical, performance is stablized.
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 LCD display device, including display module, the display module includes back light source structure and is arranged in backlight
Liquid crystal module in structure, the back light source structure include multiple LED illuminating parts and optical functional film, the liquid crystal module packet
The one side close to the upper polaroid of the upper polaroid for including upper substrate and being arranged on upper substrate, the upper substrate is equipped with coloured silk
Colo(u)r filter, it is characterised in that：The LED illuminating parts include LED chip and are arranged in LED chip inorganic containing red
The encapsulation glue-line of fluorescent powder；The colored filter includes blue filter film, green filter film and red filter film, described green
Color filter coating is coated with green light organic fluorescence transition material close to the one side of the upper substrate.
2. LCD display device according to claim 1, it is characterised in that：The hair of the green light organic fluorescence transition material
Photopeak value is 520-530nm.
3. LCD display device according to claim 1, it is characterised in that：The luminescence peak of the red inorganic fluorescent powder
For 615-625nm.
4. LCD display device according to claim 1, it is characterised in that：The relatively described envelope of the red inorganic fluorescent powder
The mass ratio of dress glue-line focuses between 10%-40%.
5. LCD display device according to claim 1, it is characterised in that：The LED chip is blue-light LED chip.
6. LCD display device according to claim 5, it is characterised in that：The luminescence peak of the blue-light LED chip is
400-500nm。
7. LCD display device according to claim 6, it is characterised in that：The luminescence peak of the blue-light LED chip is
460-470nm。
8. LCD display device according to claim 1, it is characterised in that：The liquid crystal module further includes being successively set on
Down polaroid, lower substrate on the back light source structure and liquid crystal layer, the upper substrate setting is on the liquid crystal layer；It is described
The one side close to the down polaroid of lower substrate is equipped with thin-film transistor circuit.
9. LCD display device according to claim 8, it is characterised in that：The close liquid crystal layer of the lower substrate
, the upper substrate close to the liquid crystal layer while be equipped with groove structure；The groove structure is equipped with alignment film.
10. a kind of display module, including back light source structure and the liquid crystal module that is arranged on back light source structure, the backlight
Structure includes multiple LED illuminating parts and optical functional film, and the liquid crystal module includes upper substrate and is arranged on upper substrate
Upper polaroid, the upper substrate close to the upper polaroid one side be equipped with colored filter, it is characterised in that：It is described
LED illuminating parts include LED chip and the encapsulation glue-line containing red inorganic fluorescent powder being arranged in LED chip；The coloured silk
Colo(u)r filter includes blue filter film, green filter film and red filter film, and the green filter film is close to the upper substrate
One side be coated with green light organic fluorescence transition material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322176 | 2018-04-11 | ||
| CN2018103221767 | 2018-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108761920A true CN108761920A (en) | 2018-11-06 |
Family
ID=63970346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810794536.3A Withdrawn CN108761920A (en) | 2018-04-11 | 2018-07-19 | A kind of LCD display device and its display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108761920A (en) |
-
2018
- 2018-07-19 CN CN201810794536.3A patent/CN108761920A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9546320B2 (en) | Quantum dot film applied to backlight module | |
| CN108303824A (en) | Down straight aphototropism mode set and liquid crystal display | |
| CN104090408A (en) | High-color-gamut liquid crystal display module structure | |
| CN208141087U (en) | A kind of display device | |
| CN105204221B (en) | Color membrane substrates, display panel and display device | |
| CN207799291U (en) | A kind of high colour gamut illuminating module | |
| US10481428B2 (en) | Display substrate and display device | |
| CN104854652B (en) | Display device and radiovisor | |
| CN109828410A (en) | A kind of display of novel LED backlight mould group | |
| CN106773319B (en) | Display device and preparation method thereof | |
| CN109426034A (en) | Liquid crystal display device | |
| CN101285957B (en) | Color liquid-crystal display | |
| CN107966848A (en) | Display device and its manufacture method | |
| CN105974497A (en) | Color enhancement film for color display equipment and preparation method thereof | |
| CN206400222U (en) | A kind of quantum dot membrane material structure and LED backlight/illumination panel | |
| TW201243494A (en) | Blue photoresist and color filter substrate and display device using the same | |
| US20130250209A1 (en) | High Color Expression Display Device and Method for Adjusting Displayed Color | |
| CN208721953U (en) | A kind of LCD display device and its display module | |
| CN108848330A (en) | A kind of television set and its LCD display device | |
| CN108761920A (en) | A kind of LCD display device and its display module | |
| CN208721946U (en) | A kind of tablet computer and its LCD display device | |
| CN208489878U (en) | A kind of mobile phone and its LCD display device | |
| CN208540043U (en) | A kind of television set and its LCD display device | |
| CN209327739U (en) | A kind of display of novel LED backlight mould group | |
| CN108180444A (en) | LED light source and side entrance back module, liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20181106 |