CN208937869U - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN208937869U CN208937869U CN201690000468.3U CN201690000468U CN208937869U CN 208937869 U CN208937869 U CN 208937869U CN 201690000468 U CN201690000468 U CN 201690000468U CN 208937869 U CN208937869 U CN 208937869U
- Authority
- CN
- China
- Prior art keywords
- light
- liquid crystal
- crystal display
- display device
- component
- 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.)
- Active
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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- 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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
Abstract
One embodiment of the utility model provides a kind of liquid crystal display device comprising the light of light source is converted into the first component of white light and the light for being not transferred to the first component is also converted into the second component of white light, so as to improve the light leakage defect of liquid crystal display panel.
Description
Technical field
The utility model relates to liquid crystal display devices.More particularly, to include the light issued from light source is converted into it is white
The liquid crystal display device of the color conversion layer of coloured light, the liquid crystal display device are configured to make to be not transferred to the light source of color conversion layer
A part of light by be located at light source around color layer be converted into white light, so as to improve as caused by the light leakage of light source
The decline of picture quality.
Background technique
In general, liquid crystal display device (liquid crystal display device, LCD) passes through the light using liquid crystal
The image for learning anisotropy (optical anisotropy) and polarization characteristic (polarization) is presented principle and is driven.
Liquid crystal display panel (the liquid crystal that such liquid crystal display device will engage between two substrates with liquid crystal layer
Panel) as necessary structural element, electric field is generated in liquid crystal display panel and changes the orientation of liquid crystal molecule, is thus presented
The difference of transmitance.
But liquid crystal display panel itself does not have luminous element, therefore in order to show transmitance difference with image, needs to send out
The light source of white light separately set out.As the light source of liquid crystal display device, cold-cathode fluorescence lamp (cold cathode can be used
Fluorescent lamp, CCFL), external electrode fluorescent lamp (external electrode fluorescent lamp,
) or light emitting diode (light emitting diode, LED) etc. EEFL.Particularly, light emitting diode has small-sized, low function
Consumption, high reliability, therefore there is the light source as liquid crystal display device and the trend that is used extensively.
Utility model content
Technical task
In addition, including the light source of the liquid crystal display device of light emitting diode by blue LED and yellow fluorophor structure
At.More specifically, a part of the blue light issued from blue LED is absorbed by yellow fluorophor and converts yellowly
Light, and sodium yellow obtained by being converted as yellow fluorophor and be not mixed with each other by the remaining blue light that fluorophor absorbs, from
And white light is presented.
But in the case where the light source being made of blue LED and yellow fluorophor, it is difficult to carry out blue hair
The wavelength of optical diode and the respective control of the wavelength of yellow fluorophor and the combination of color, therefore lead to the loss of light, it ties
Fruit causes the decline of the colorrendering quality of liquid crystal display device.
Recently, in order to improve the colorrendering quality of liquid crystal display device, consider the light source for issuing blue light separately set including
The structure of the layer of quantum dot (quantum dot).Specifically, the light of the blue wavelength issued from light source is by the layer including quantum dot
It is converted into the light of red wavelength and the light of green wavelength, and the light for the red wavelength converted and the light of green wavelength and light source
Blue wavelength light mixing and white light is presented.
The nanometer (nm) that quantum dot (quantum dot) issues the light of different wave length as the size according to particle is big
Small semiconductor junction eutectic substance, the size of particle is smaller, issues the shorter light of wavelength, and the size of particle is bigger, issues wavelength and gets over
Long light.The photoluminescence quantum efficiencies of quantum dot are high and convenient for adjusting color, therefore are advantageously implemented higher color reproduction
Property.
But the layer including quantum dot is separated with light source and is configured, so as to occur to lead to picture quality by light leakage
Decline the problem of.In this regard, being described as follows.In the structure for the light source being made of blue LED and yellow fluorophor
In, light source itself issues white light, and the white light of light source is incident on liquid crystal display panel by light guide plate etc..Unlike this, exist
In the structure that layer including quantum dot and light source are independently configured, the blue light of light source is transmitted to the layer including quantum dot, and by
Layer including quantum dot is converted into white light and is incident on liquid crystal display panel.That is, light source is with the layer including quantum dot because of many utensils
Object etc. and configure spaced apart to each other, cannot all be incident on the layer including quantum dot it is therefore possible to the light of light source and light occurs and lets out
Leakage.In this way, causing a part of picture of liquid crystal display panel to issue blue if the blue light of leakage is directly incident on liquid crystal display panel
Light leakage defect, the problem of thus picture quality being caused to decline.
According to light source and the layer respective positions including quantum dot, this may occurs in each different parts of liquid crystal display panel
The light leakage defect of the blue of sample.For example, in the structure that light source is configured in position corresponding with the gabarit of liquid crystal display panel, in liquid
The leakage of the contour part distribution third contact of a total solar or lunar eclipse of crystal panel, therefore distribute the light leakage defect of raw blue in the contour part of liquid crystal display panel.At this
In the case of, in order to cover the light leakage defect of (blocking) blue, need to be blocked the outer of liquid crystal display panel with other utensil objects
Wide part, therefore cause the increased other problems in the region frame (bezel) of liquid crystal display device again.
In this regard, the inventor of the utility model is in the light source that will issue blue light and including quantum dot (quantum dot)
The structure that is independently configured of layer in recognize above-mentioned problem, and merely cover the light of leakage to not being, but
The new structure that the trimmed book body of leakage is also converted into white light is studied.Inventor's invention of the utility model as a result,
The light leakage defect of blue can be improved, and improve the liquid crystal display device of the new structure of the quality of picture.
The project that one embodiment of the utility model is solved is to provide a kind of liquid crystal display device, liquid crystal display dress
It sets and is configured to include that the light of light source is converted into the first component of white light and first will be not transferred in the light of light source
The light of part is also converted into the second component of white light, so as to solve the decline of the picture quality as caused by the light leakage defect of light source
The problem of.
The project that the technical task that one embodiment of the utility model is solved is not limited to the described above, those skilled in the art
Member is by following record it should be clearly understood that other projects not being mentioned to herein.
The means to solve the problem
The liquid crystal display device of one embodiment of the utility model includes liquid crystal display panel, light guide plate, light source.Light guide plate includes
Incidence surface and the light-emitting surface to connect with incidence surface, and it is configured at the lower part of liquid crystal display panel.Light source is corresponding with the incidence surface of light guide plate
Ground configuration, so that light is incident on the inside of light guide plate.In addition, liquid crystal display device includes configuring in liquid crystal display panel and light guide plate
Color conversion layer between light-emitting surface and being configured to is separated with color conversion layer and the light-emitting surface weight of at least part and light guide plate
Folded color layer.In the liquid crystal display device of one embodiment of the utility model, the light of light source is converted into white by the color layer
Coloured light, so as to improve the problem of picture quality declines caused by the light leakage defect by light source.
The liquid crystal display device of one embodiment of the utility model includes: light source；The first component converts the light of light source
At white light；And second component, it is configured at around light source, the light for being not transferred to the first component is converted into white light.By
This, is capable of providing the liquid crystal display device for improving the light leakage defect of the liquid crystal display panel of light source.
Utility model effect
An embodiment according to the present utility model is not transferred to a part of light of the light source of color conversion layer by being located at light source
Around color layer be converted into white light, so as to improve the light leakage defect of light source.
Have the effect of improving the picture quality of liquid crystal display device as a result,.
In addition, blocking the light leakage defect raw in the contour part distribution of liquid crystal display panel without the utensil object with separately setting, therefore
The problem of frame increase of liquid crystal display device can be improved.
The effect of the utility model is not limited to above-described effect, and those skilled in the art, can be clear from record below
Understand to Chu other effects not being mentioned to herein.
The above project to be solved, the means to solve the problem, documented utility model content is not true in effect
Determine the essential feature of claim, therefore the interest field of claim is not limited to documented item in utility model content.
Detailed description of the invention
Fig. 1 a is the top view of the liquid crystal display device of an embodiment of the utility model.
Fig. 1 b is I-I ' the sectional view for showing Fig. 1 a.
Fig. 2 is the path of the light in the liquid crystal display device for illustrating an embodiment of the utility model and cutting for conversion
Face figure.
Fig. 3 a to Fig. 3 c is the various realities of the color layer in the liquid crystal display device for the embodiment for showing the utility model
Apply the top view of example.
Fig. 4 is the sectional view of the liquid crystal display device of another embodiment of the utility model.
Fig. 5 is the sectional view of the liquid crystal display device of the still another embodiment of the utility model.
Specific embodiment
Referring to the following embodiment being described in detail using attached drawing, it should be clearly understood that the advantages of the utility model and spy
The method levied, realize the advantage and feature.But the utility model is not limited to embodiments disclosed below, it can each other not
With various forms realize, the utility model is completely disclosed simply by the present embodiment, it is to those skilled in the art complete
Site preparation informs that the scope of the utility model, the utility model should be defined according to the scope of claim.
Shape shown in the drawings, size, ratio, angle, number for being illustrated to the embodiments of the present invention
Amount etc. is illustration, therefore the utility model is not limited to the item of diagram.Throughout the specification, identical reference marker indicates
Identical structural element.In addition, when being illustrated the utility model being judged to that illustrating for well-known technique can be led
In the case where causing the main idea of the utility model not know, detail explanation is omitted.
It, can as long as not using " only~" in the case where using " comprising ", " having ", " composition " etc. in the present specification
Additional other parts.With odd number to indicate structural element, if be not expressly recited especially, including have more
A situation.
When being explained to structural element, records, also should be interpreted that including error range even without separately specific.
In the case where being illustrated to positional relationship, for example, with "~on ", " on~top ", " in~lower part ",
In the case where the positional relationship to illustrate two parts such as " on~side ", as long as not using " just " or " direct ", this two
More than one other parts can be equipped between a part.
In the case where being illustrated to time relationship, for example, with "~later ", " then~", "~then ", "~it
Before " etc. may include discontinuous feelings as long as not using " just " or " direct " in the case where illustrating temporal precedence relationship
Condition.
First, second is equal for stating to various structural elements, but these terms do not have these structural elements
Restriction effect.These structural elements are only used to distinguish a structural element with other structures element.Therefore, practical new at this
In the technical idea of type, the first structure element recorded below can be the second structural element.
About the size and thickness of each structure shown in the drawings, this is to illustrate for ease of description, this is practical
Novel size and thickness without being necessarily limited to the structure of diagram.
Each feature of many embodiments of the utility model partially or completely can be bonded to each other or combine, in technology
On can be achieved various linkages and driving, each embodiment both can to implementing independently of one another, can also associated relationship it is real together
It applies.
In the following, the liquid crystal display device of the embodiments of the present invention is described in detail referring to attached drawing.
Fig. 1 a is the top view of the liquid crystal display device (100) of an embodiment of the utility model, and Fig. 1 b is to show Fig. 1 a
I-I ' sectional view.The liquid crystal display device (100) of a and Fig. 1 b referring to Fig.1, an embodiment of the utility model include device
Have component (10), light guide plate (30), light source (40), liquid crystal display panel (80), the first component (50), second component (70), reflecting layer
(60) and it is additional reflecting layer (20).In fig 1 a, for ease of description, illustrate only device component (10), the first component (50),
Additional reflecting layer (60) and light source (40).
For displaying images nuclear structure element of the liquid crystal display panel (80) as liquid crystal display device (100), has
With the structure of liquid crystal layer between two substrates.Liquid crystal display panel (80) is utilized to be changed by the electric field formed between two electrodes
The principle of the orientation of liquid crystal molecule, when the light for the light source (40) that have passed through light guide plate (30) is supplied to liquid crystal display panel (80)
When, penetrated light quantity is adjusted according to the orientation of liquid crystal molecule, to show desired image.
B referring to Fig.1, light guide plate (30) are configured at the lower part of liquid crystal display panel (80), including incidence surface (30a) and and incidence surface
The light-emitting surface (30b) that (30a) connects.Light guide plate (30), which plays, is distributed to the light for being incident on the light source (40) of incidence surface (30a)
The effect of the whole region of light-emitting surface (30b).Light guide plate (30) can be made of transparency material, such as by polyolefin
(polyolefine), polystyrene (polystyrene), glass (glass), polymethyl methacrylate (PMMA), poly- carbonic acid
Any of ester (PC), silicon rubber (siliconrubber) are constituted.
As shown in Figure 1 b, light source (40) and the incidence surface (30a) of light guide plate (30) accordingly configure.Light source (40) issues
The light of the light of blue wavelength, the light source (40) of sending is incident on light guide plate (30) by the incidence surface (30a) of light guide plate (30)
Inside.Although it is not shown, light source (40) includes multiple blue LEDs, multiple blue LEDs are between certain
Every being arranged on circuit substrate.In addition, the light of capable of emitting about 430nm or more the 480nm blue wavelength below of light source (40).
The first component (50) is configured between liquid crystal display panel (80) and the light-emitting surface (30b) of light guide plate (30), is played light
The light in source (40) is converted into the effect of white light.Therefore, the first component (50) can also be known as color conversion layer (color
conversion layer)。
The first component (50) can be the layer including quantum dot (quantum dot).As described above, quantum dot is as basis
The size of particle and the semiconductor junction eutectic substance for issuing nanometer (nm) size of the light of different wave length, photoluminescence quantum efficiencies
Height is easy to adjust color, is advantageously implemented higher colorrendering quality.In addition, quantum dot is made of inorganic substances, therefore have
It is long that the service life is compared with the Organic Light Emitting Diode (organic light emitting diode, OLED) being made of organic substance
The advantages of.
The light of the blue wavelength of light source (40) is converted into the light of red wavelength by the quantum dot for being included in the first component (50)
And the light of green wavelength, and the light of the light of the light for the red wavelength converted and green wavelength and the blue wavelength of light source (40)
It mixes and white light is finally presented.
The first component (50) may include at least two kinds of quantum dots of different sizes.For example, the first component (50) may include having
The quantum dot grain of the quantum dot particles of the size of the light of capable of emitting red wavelength and the size for the light for having capable of emitting green wavelength
Son.Quantum dot can be-VI race ,-V race or-IV race's substance, specifically, can be CdSe, CdTe, CdS, ZnSe, ZnTe,
ZnS、InP、GaP、GaInP2、PbS、ZnO、TiO2、AgI、AgBr、HgI2、 PbSe、In2S3、In2Se3、Cd3P2、
At least one of Cd3As2, GaAs.
As the substance of quantum dot, using above-mentioned cadmium selenide (CdSe), cadmium telluride (CdTe), cadmium sulfide (CdS) etc.
Such cadmium compound, but most immediate cause is limited as the use of the cadmium of hazardous substances, and considers expense, safety etc. and asked
Topic, carries out lasting research and development to non-cadmium system quantum dot.
As shown in Fig. 1 a and Fig. 1 b, the first component (50), can be with optics as the layer including quantum dot (quantum dot)
Piece (optical sheet) or film (film) form are located on light guide plate (30).Or the light-emitting surface in light guide plate (30)
The surface of (30b) can be directly coated with the layer including quantum dot.
Second component (70) is located at around light source (40), play the light for being not transferred to the first component (50) is converted into it is white
The effect of coloured light.More specifically, b, second component (70) are configured to separate with the first component (50) referring to Fig.1, and at least one
Part is Chong Die with light-emitting surface (30b) of light guide plate (30).In addition, the light of light source (40) is converted into white by second component (70)
Light.
Second component (70) can be the color layer for having the color for having complementary color relationship with the color of the light of light source (40).
That is, second component (70) can be the printing layer or coating of yellow in the case where light source (40) issue the light of blue wavelength, this
When second component (70) wavelength of light for being reflected be about 560nm or more 590nm.
In the liquid crystal display device (100) of an embodiment of the utility model, the light of light source (40) is by the first component
(50) it is converted into white light, in addition, the light for being not transferred to the first component (50) is converted into white light by second component (70).In order to
The process is more specifically illustrated, is described as follows referring to Fig. 2.Fig. 2 is the implementation for illustrating the utility model
The sectional view of the path of light in the liquid crystal display device (100) of example and color conversion.
Referring to Fig. 2, the light (L) of light source (40) is incident on light guide plate (30) by the incidence surface (30a) of light guide plate (30)
Inside, incident light is transmitted to the first component (50) by the light-emitting surface (30b) of light guide plate (30).The light being passed by
The first component (50) is converted into the first white light (WL1) and is incident on liquid crystal display panel (80).
As described above, light source (40) and the first component (50) are matched more than certain distance each other due to utensil structure
It sets.In this regard, cannot all be incident on the inside of light guide plate (30) from the light (L) that light source (40) issue and may be compromised
Light, the light being compromised at this time can be directly incident on liquid crystal display panel (80) without the first component (50).More specifically
Ground, as shown in Fig. 1 b and Fig. 2, the first component (50) and second component (70) are the manufactures considered in liquid crystal display device (100)
Tolerance, process or relationship between utensil object around in the process etc. and design, therefore certain degree can be separated and configured.
As a result, there are gap (gap, G) between the first component (50) and second component (70), the blue light being compromised passes through first
Gap (G) between component (50) and second component (70) and be directly incident on liquid crystal display panel (80), therefore lead to liquid crystal display panel
(80) a part of picture light leakage defect blue.Moreover, in such blue in order to block liquid crystal display panel (80)
Light leakage defect and by the utensil object separately set configuration in the case where the gabarit part of liquid crystal display panel (80), and liquid crystal display is caused to fill
Set frame (bezel) the increased other problems of (100).
In the liquid crystal display device (100) of an embodiment of the utility model, make not to be incident on the interior of light guide plate (30)
Portion and the light that projects upwards or the light for being not transferred to the first component (50) are converted into being incident on liquid crystal display panel (80) after white light,
So as to effectively improve the blue light leakage defect of liquid crystal display panel (80).Specifically, as shown in Fig. 2, it is not incident on light guide plate
(30) light of inside projected upwards is not transferred to the light of the first component (50) by configuring around light source (40)
Two components (70) are converted into the second white light (WL2).Later, the second white light (WL2) converted passes through the first component (50)
The gap (G) separated between second component (70) is projected and is incident on liquid crystal display panel (80), therefore liquid crystal display panel (80)
Blue light leakage defect is improved, so that picture quality can also be improved.In addition, blocking blue leakage without the utensil object with separately setting
Optical defect, therefore the problem of frame (bezel) increase of liquid crystal display device (100), can also be improved together.
The brightness of the first white light (WL1) as obtained by the first component (50) conversion is obtained with being converted by second component (70)
The difference of brightness of the second white light (WL2) can be about 100nit the following value.As shown in Fig. 2, the light (L) of light source (40) by
The first component (50) is converted into the first white light (WL1) and is incident on liquid crystal display panel (80), and is also turned by second component (70)
It changes the second white light (WL2) into and is incident on liquid crystal display panel (80).Therefore, if the first white light (WL1) and the second white light
(WL2) difference of brightness is excessive, then the difference of non-uniform brightness occurs in the picture of liquid crystal display panel (80), thus may cause
Picture quality decline.
Similarly, the chromaticity coordinates (Wx, Wy) of the first white light (WL1) as obtained by the first component (50) conversion with by the
The difference of the chromaticity coordinates (Wx, Wy) of second white light (WL2) obtained by two components (70) conversion can be about 0.005 the following value.More
Specifically, the difference of the Wx of the Wx of the first white light (WL1) and the second white light (WL2) can be about 0.005 the following value, and first
The difference of the Wy of the Wy and the second white light (WL2) of white light (WL2) can be about 0.005 the following value.It is can avoid as a result, because of the
Caused by one white light (WL1) and the second white light (WL2) the problem of the uneven color of liquid crystal display panel (80), therefore have
Further increase the effect of picture quality.
As described above, second component (70) is configured in a manner of separating with the first component (50) around light source (40),
And at least part is arranged to Chong Die with light-emitting surface (30b) of light guide plate (30).For the formation position to second component (70)
Carry out more specific description is set, is described as follows referring again to Fig. 1 b.
As shown in Figure 1 b, the liquid crystal display device (100) of an embodiment of the utility model may also include for storing light
The device component (10) in source (40), light guide plate (30) and additional reflecting layer (20).In addition, device component (10) includes and light source
(40) the corresponding vertical component effect in side (10b) and horizontal part (10a) corresponding with the upper surface of light source (40), light source (40) with by
The form that the vertical component effect (10b) and horizontal part (10a) of device component (10) surround is contained.
Reflecting layer (60) is configurable on the inner surface of the horizontal part (10a) of device component (10).Reflecting layer (60), which is played, draws
It leads to issue from light source (40) and is not incident to the inside of light guide plate (30) but and is incident on light guide plate again to the light that upside is projected
(30) internal effect.The substance in reflecting layer (60) is, for example, acrylic (acryl) or polyethylene terephthalate
Any of (polyethyleneterephthalate, PET).It is illustrated as end and the device in reflecting layer (60) in Figure 1b
The end for having the horizontal part (10a) of component (10) is at same location, but in order to reflect more to the upside of light source (40)
The light of injection also may make that the end in reflecting layer (60) is more prominent than the end of horizontal part (10a).
In addition, being also configured with additional reflecting layer (20) in the lower surface of light guide plate (30).Additional reflecting layer (20) are played pair
The light for being incident on the internal light source (40) of light guide plate (30) is reflected and is transmitted to the first component (50) effect of more light,
It is made of substance identical with reflecting layer (60).
In addition, though not shown in the accompanying drawings, but it is more to add between light guide plate (30) and liquid crystal display panel (80) configuration
A optical film.Structural element of the optical film as the light efficiency for improving liquid crystal display device (100), it may for example comprise diffusion
Piece (diffuser sheet) and prismatic lens (prism sheet).Diffusion sheet, which plays, to be penetrated from light guide plate (30) to certain orientation
Out light scattering and make light be uniformly distributed in liquid crystal display panel (80) entire surface function.Prismatic lens have surface according to
The structure of certain prism for being alternatively arranged triangular prism form, plays the anaclasis for making have passed through diffusion sheet and concentration and improves liquid
The function of the light efficiency of crystal panel (80).
As shown in Figure 1 b, second component (70) is configured at least part region phase with the inner surface of reflecting layer (60)
It connects.In other words, second component (70) can be at least part region of printing or the inner surface for being coated to reflecting layer (60)
Color layer.In order to carry out more specific description to this, it is described as follows referring to Fig. 3 a and Fig. 3 c.
Fig. 3 a to Fig. 3 c is shown in the liquid crystal display device (100) of an embodiment of the utility model, with reflection
The top view for second component (70) the i.e. various embodiments of color layer that the mode that the inner surface of layer (60) connects configures.In order to just
In explanation, in addition to it is viewed from above when reflecting layer (60), color layer (70), light source (40) and light guide plate (30) one
Remainder except part, the illustration is omitted.
Although it is not shown, second component (70) can be arranged to it is corresponding with the whole region of inner surface of reflecting layer (60).
In this case, the most of of the light of light source (40) projected upwards is easily converted into white light by second component (70),
Therefore the blue light leakage defect that the blue light of light source (40) is directly compromised can be efficiently solved.
Alternatively, as shown in Figure 3a, the end of second component (70a) can be made to be located inside than the end of reflecting layer (60).That is,
It is configured to, second component (70a) is not located at the whole region of the inner surface of reflecting layer (60), but is located in addition to end one
Remainder except partial region.In this case, it is not configured with the end in the reflecting layer (60) of second component (70a)
A part of region is to offset the region (off set), can will pass through liquid crystal display panel because of the color of the end of second component (70a)
(80) it is minimized by other problems caused by visuognosis.
Referring to Fig. 3 b, second component (70b) can be printed onto the inner surface of reflecting layer (60) in the form of dot (Dot).?
In this case, the light of the light source projected upwards (40) can be converted by the second component (70b) for being printed to reflecting layer (60)
White light, and can by be not printed with second component (70b) reflecting layer (60) inner surface by the light source projected upwards (40)
Light be incident on the inside of light guide plate (30) again.That is, the reflection function and second component in reflecting layer (60) can be adjusted suitably
The white light conversion function of (70b) and be used, therefore can realize more free optical design.
Referring to Fig. 3 c, second component (70c) can be made of the first color layer (71) and the second color layer (72).Institute as above
It states, second component (70c) needs to be made of the color that the color of the light with light source (40) has complementary color relationship, therefore the first color
The color of the light of the combination needs and light source (40) of the color of color layer (71) and the second color layer (72) has complementary color relationship.Example
Such as, the first color layer (71) can be red printing layer or coating, the second color layer (72) can be green printing layer or
Coating.At this point, the wavelength of the light reflected by the first color layer (71) and the second color layer (72) of second component (70c) is distinguished
It is about 530nm or more 720nm or less.In this case, the blue light of light source (40) projected upwards is respectively by the first color layer
(71) and the second color layer (72) reflects repeatedly, thus can be converted into white light.
The second component (70) of the inner surface in reflecting layer (60) is configured at without being necessarily limited in above-mentioned Fig. 3 a to Fig. 3 c
The structure of explanation can have the various knots for the light for the light source (40) for being not transferred to the first component (50) to be converted into white light
Structure.
Therefore, make in the liquid crystal display device (100) of an embodiment of the utility model by light referring to figs. 1 to Fig. 3
The light projected upwards in source (40) or the light for being not transferred to the first component (50) are converted into second component (70) configuration of white light
Around light source (40), so as to improve the blue light leakage defect of liquid crystal display panel (80), picture quality is improved.In addition, nothing
The gabarit part that the liquid crystal display panel (80) of blue light leakage defect occurs need to be blocked with the utensil object separately set, therefore can be improved again
The problem of frame (bezel) of liquid crystal display device (100) increases.
Fig. 4 is the sectional view of the liquid crystal display device (200) of another embodiment of the utility model, and Fig. 5 is that this is practical new
The sectional view of the liquid crystal display device (300) of the still another embodiment of type.When explaining the embodiment, for before
The identical or corresponding structural element of embodiment, omission illustrate.The present embodiment is compared with above-described embodiment, only in second component
(70) it is had differences in forming position, this is described as follows.
Referring to Fig. 4, second component (70) can be at least the one of the inner surface of the horizontal part (10a) with device component (10)
The mode that partial region directly connects configures.In this case, second component (70) is formed directly into device component (10)
Inner surface, to have the effect of that process and expense can be shortened.In addition, include the high substance of reflectivity in second component (70),
So that second component (70) has both the work that the light for being not transferred to the light source (40) of the first component (50) is converted into white light
With and by light source (40) issue upwards light reflection and so that it is incident on the effect of the inside of light guide plate (30) again, thus may be used
It is more varied conducive to utensil portion to be designed as.Alternatively, by the substance of device component (10), especially horizontal part (10a) and
The substance of vertical component effect (10b) is made of the high substance of reflectivity, so as to replace reflecting layer (60) by device component (10)
Effect.
Referring to Fig. 5, second component (70) extends to vertical component effect from the inner surface of the horizontal part (10a) of device component (10)
It is configured until at least part region of the inner surface of (10b).That is, second component (70) is with the upper surface of ambient light source (40)
And the mode of side is formed, so that the light for being not transferred to the light source (40) of the first component (50) is converted by second component (70)
More white lights, therefore can be minimum by the blue light of the clearance leakage between the first component (50) and second component (70)
Change, can also effectively minimize the blue light leakage defect of liquid crystal display panel (80) as a result,.
It in the liquid crystal display device of an embodiment of the utility model, may also include that device component, be used to store light
Source and light guide plate, device component can by and light source the corresponding vertical component effect in side and horizontal part structure corresponding with the upper surface of light source
At.
In the liquid crystal display device of an embodiment of the utility model, it may also include that reflecting layer, be configured at horizontal part
Inner surface, color layer can be configured to connect at least part region of the inner surface in reflecting layer.
In the liquid crystal display device of an embodiment of the utility model, the end position of the end of color layer than reflecting layer
In inside.
In the liquid crystal display device of an embodiment of the utility model, color layer can be configured to the inner surface with horizontal part
At least part region connect.
In the liquid crystal display device of an embodiment of the utility model, color layer can be extended to from the inner surface of horizontal part
Until at least part region of the inner surface of vertical component effect.
In the liquid crystal display device of an embodiment of the utility model, the color of the light of light source and the color of color layer can
Complementary color relationship each other.
In the liquid crystal display device of an embodiment of the utility model, the wavelength of the light of light source is 430nm or more
480nm is hereinafter, the wavelength of the light of color layer reflection is 530nm or more 720nm or less.
In the liquid crystal display device of an embodiment of the utility model, light source may include blue LED, color
Layer can be buffy layer.
In the liquid crystal display device of an embodiment of the utility model, the light for being incident on the light source of the inside of light guide plate can
White light is converted by color conversion layer and is incident on liquid crystal display panel.
In the liquid crystal display device of an embodiment of the utility model, white light obtained by being converted as color layer can pass through
Liquid crystal display panel is incident between color conversion layer and color layer.
In the liquid crystal display device of an embodiment of the utility model, the brightness of white light obtained by being converted as color layer
And the difference of the brightness of white light obtained by being converted as color conversion layer can be 100nit or less.
In the liquid crystal display device of an embodiment of the utility model, the color of white light obtained by being converted as color layer is sat
The difference of the chromaticity coordinates (Wx, Wy) of white light obtained by marking (Wx, Wy) and being converted as color conversion layer can be 0.005 or less.
In the liquid crystal display device of another embodiment of the utility model, white light obtained by being converted as second component can
It is projected by the gap (gap) separated between the first component and second component.
In the liquid crystal display device of another embodiment of the utility model, the first component and second component are configured in and lead
Between tabula rasa and liquid crystal display panel.
In the liquid crystal display device of another embodiment of the utility model, white light obtained by being converted as the first component
The difference of brightness and the brightness of white light obtained by being converted as second component can be 100nit or less.
In the liquid crystal display device of another embodiment of the utility model, white light obtained by being converted as the first component
Chromaticity coordinates (Wx, Wy) with converted as second component obtained by the difference of chromaticity coordinates (Wx, Wy) of white light can be for 0.005 or less.
In the liquid crystal display device of another embodiment of the utility model, the first component may include quantum dot (quantum
dot)。
More than, referring to attached drawing, more detailed description carried out to the embodiments of the present invention, but the utility model without
It need to be necessarily limited to such embodiment, in the range of not departing from the technical idea of the utility model, various modifications can be carried out
And implement.Therefore, embodiment disclosed in the utility model is not the technical idea of restriction the utility model, but to this reality
It is illustrated with novel technical idea, the range of the technical idea of the utility model is not limited to such embodiment.Therefore, it answers
Work as understanding, the embodiment of the above record in all respects on be illustrative, be not to be defined to the utility model.This
The protection scope of utility model should be explained according to claims, be answered with all technical ideas in this same range
It is included in the interest field of the utility model.
Claims (19)
1. a kind of liquid crystal display device, the liquid crystal display device include:
Liquid crystal display panel；
Light guide plate is configured at the lower part of the liquid crystal display panel, and including incidence surface and the light-emitting surface to connect with the incidence surface；
And
Light source is accordingly configured with the incidence surface of the light guide plate, so that light is incident on the inside of the light guide plate,
The liquid crystal display device is characterized in that the liquid crystal display device includes:
Color conversion layer is configured between the liquid crystal display panel and the light-emitting surface of the light guide plate；And
Color layer is configured to separate with the color conversion layer, and at least part is Chong Die with the light-emitting surface of the light guide plate,
The light of the light source is converted into white light by the color layer.
2. liquid crystal display device according to claim 1, which is characterized in that
The liquid crystal display device further includes device component, and the device component is used to store the light source and the light guide plate,
The device component is made of vertical component effect and horizontal part, and the vertical component effect is corresponding with the side of the light source, the level
Portion is corresponding with the upper surface of the light source.
3. liquid crystal display device according to claim 2, which is characterized in that
The liquid crystal display device further includes reflecting layer, and the reflecting layer is configured at the inner surface of the horizontal part,
The color layer is configured to connect at least part region of the inner surface in the reflecting layer.
4. liquid crystal display device according to claim 3, which is characterized in that
The end of the color layer is located inside than the end in the reflecting layer.
5. liquid crystal display device according to claim 2, which is characterized in that
The color layer is configured to connect at least part region of the inner surface of the horizontal part.
6. liquid crystal display device according to claim 5, which is characterized in that
The color layer is from least part region for the inner surface that the inner surface of the horizontal part extends to the vertical component effect
Only.
7. liquid crystal display device according to claim 1, which is characterized in that
The color of the color of the light of the light source and color layer complementary color relationship each other.
8. liquid crystal display device according to claim 7, which is characterized in that
The wavelength of the light of the light source be 430nm or more 480nm hereinafter,
The wavelength of the light of the color layer reflection is 530nm or more 720nm or less.
9. liquid crystal display device according to claim 7, which is characterized in that
The light source includes blue LED, and the color layer is buffy layer.
10. liquid crystal display device according to claim 1, which is characterized in that
The light for being incident on the light source of the inside of the light guide plate is converted into white light by the color conversion layer and is incident on
The liquid crystal display panel.
11. liquid crystal display device according to claim 10, which is characterized in that
The white light as obtained by color layer conversion is by being incident on institute between the color conversion layer and the color layer
State liquid crystal display panel.
12. liquid crystal display device according to claim 11, which is characterized in that
The brightness of the white light as obtained by color layer conversion is bright with the white light as obtained by color conversion layer conversion
The difference of degree is 100nit or less.
13. liquid crystal display device according to claim 11, which is characterized in that
As the color layer conversion obtained by white light chromaticity coordinates (Wx, Wy) with as the color conversion layer convert obtained by it is white
The difference of the chromaticity coordinates (Wx, Wy) of coloured light is respectively 0.005 or less.
14. a kind of liquid crystal display device, which includes light source,
The liquid crystal display device is characterized in that the liquid crystal display device includes:
The light of the light source is converted into white light by the first component；And
Second component is located at around the light source, the light for being not transferred to the first component is converted into white light.
15. liquid crystal display device according to claim 14, which is characterized in that
The white light as obtained by second component conversion passes through separating between the first component and the second component
It projects in gap.
16. liquid crystal display device according to claim 14, which is characterized in that
The first component and the second component are configured between light guide plate and liquid crystal display panel.
17. liquid crystal display device according to claim 14, which is characterized in that
The brightness of the white light as obtained by first component conversion is bright with the white light as obtained by second component conversion
The difference of degree is 100nit or less.
18. liquid crystal display device according to claim 14, which is characterized in that
As the first component conversion obtained by white light chromaticity coordinates (Wx, Wy) with as the second component convert obtained by it is white
The difference of the chromaticity coordinates (Wx, Wy) of coloured light is 0.005 or less.
19. liquid crystal display device according to claim 14, which is characterized in that
The first component includes quantum dot.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0027348 | 2015-02-26 | ||
| KR1020150027348A KR102317270B1 (en) | 2015-02-26 | 2015-02-26 | Liquid crystal display device |
| PCT/KR2016/001620 WO2016137158A1 (en) | 2015-02-26 | 2016-02-17 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208937869U true CN208937869U (en) | 2019-06-04 |
Family
ID=56789727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690000468.3U Active CN208937869U (en) | 2015-02-26 | 2016-02-17 | Liquid crystal display device |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102317270B1 (en) |
| CN (1) | CN208937869U (en) |
| WO (1) | WO2016137158A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100137031A (en) | 2009-06-20 | 2010-12-30 | 김왕회 | Truck robbery contrivance |
| US8110839B2 (en) * | 2009-07-13 | 2012-02-07 | Luxingtek, Ltd. | Lighting device, display, and method for manufacturing the same |
| KR101808191B1 (en) * | 2011-08-26 | 2017-12-13 | 삼성전자 주식회사 | A Backlight Unit and A Liquid Crystal Display having the Backlight Unit |
| KR101851726B1 (en) * | 2011-11-23 | 2018-04-24 | 엘지이노텍 주식회사 | Display device |
| KR101338695B1 (en) * | 2012-04-27 | 2013-12-06 | 엘지이노텍 주식회사 | Display device, light conversion member and method of fabricating light conversion member |
| KR101658396B1 (en) * | 2013-03-21 | 2016-09-21 | 엘지디스플레이 주식회사 | Display device |
-
2015
- 2015-02-26 KR KR1020150027348A patent/KR102317270B1/en active IP Right Grant
-
2016
- 2016-02-17 CN CN201690000468.3U patent/CN208937869U/en active Active
- 2016-02-17 WO PCT/KR2016/001620 patent/WO2016137158A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160104386A (en) | 2016-09-05 |
| KR102317270B1 (en) | 2021-10-22 |
| WO2016137158A1 (en) | 2016-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106190116B (en) | Green-emitting phosphor body particle and its manufacturing method, color conversion sheet, light emitting device and image display apparatus assembly | |
| CN106199789B (en) | A kind of prism film of stimulated luminescence | |
| CN105467734B (en) | Wavelength changing element, light supply apparatus, projecting apparatus | |
| CN105487288B (en) | Back light unit and liquid crystal display device including back light unit | |
| WO2020015485A1 (en) | Surface light source and manufacturing method therefor, and liquid crystal display device | |
| CN100376964C (en) | Liquid crystal display module | |
| US10247985B2 (en) | Color filter substrate, display panel and display device | |
| CN104880860B (en) | Backlight assembly and the liquid crystal display including backlight assembly | |
| US20180046031A1 (en) | Lighting device, display device, and television device | |
| CN106195923A (en) | Light conversion film and there is back light unit and the display device of described smooth conversion film | |
| JP2010092705A (en) | Illuminating device and display device using this | |
| CN106249470A (en) | Back light unit and the display device including it | |
| KR20150040608A (en) | Liquid crystal display device having backlight unit using quantum dot | |
| CN109143687A (en) | Backlight module, liquid crystal display die set and electronic equipment | |
| JP2020510963A (en) | Large area light source and large area lighting equipment | |
| CN110320703A (en) | A kind of double-side display device | |
| CN107851420A (en) | Display device and radiovisor | |
| WO2018201611A1 (en) | Optical film assembly, backlight module and display device | |
| CN108732817A (en) | Backlight module and display device | |
| CN203115714U (en) | Backlight module and liquid crystal display device thereof | |
| US20060285037A1 (en) | Apparatus for mixing light beams and backlight module having the same | |
| WO2018214611A1 (en) | Backlight module and liquid crystal display device | |
| CN114578614A (en) | Backlight module and display screen | |
| JP3624503B2 (en) | Planar light source | |
| CN208937869U (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |