CN205507309U - Display and LCD - Google Patents
Display and LCD Download PDFInfo
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- CN205507309U CN205507309U CN201620298349.2U CN201620298349U CN205507309U CN 205507309 U CN205507309 U CN 205507309U CN 201620298349 U CN201620298349 U CN 201620298349U CN 205507309 U CN205507309 U CN 205507309U
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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
- G02F1/133602—Direct backlight
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted 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
- G02F1/1335—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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
This disclosed aspect relates to display and LCD, specifically discloses a display, its characterized in that, the display includes: form the demonstration layer of the array of pixel, with the backlight who provides the back bias that is used for the pixel, wherein, backlight contains reflector in a poor light, and reflector in a poor light has the colour compensation characteristic of the colour homogeneity of reinforcing back bias.
Description
Technical field
This utility model relates generally to electronic equipment, more specifically it relates to have the electricity of display
Subset.
Background technology
Electronic equipment usually includes display.Such as, cell phone, tablet PC and above-knee
Type computer usually includes the display for presenting information to user.
Liquid crystal display includes liquid crystal material layer.Pixel in liquid crystal display comprises film crystal
Manage and for applying the electrode of electric field to liquid crystal material.The strength control liquid crystal of the electric field in pixel
The polarization state of material, and thus adjust the brightness of pixel.Liquid crystal display can have color filter
The array of element, so that display can show coloured image.
Pixel in liquid crystal display can be the backlight using back light unit.Back light unit can wrap
Containing photoconductive layer.Photoconductive layer can be formed by the transparent material of such as transparent polymer.Light emitting diode
Array can emit light in the edge of photoconductive layer.The light being transmitted in the edge of photoconductive layer can
It is distributed in whole photoconductive layer according to full internal reflection principle.
Photoconductive layer can have the scattering characteristics being scattered in the internal light advanced of photoconductive layer.Pass through liquid
The pixel of crystal display can be used as the backlight of display from the light that photoconductive layer outwards scatters.
The change of backlight color can negatively affect the picture quality in backlight liquid crystal display.As
Fruit is the most careful, then each several part of display can have the projection of undesirable color.As an example,
The each several part of the display adjacent with the array of the light emitting diode in back light unit can have does not wishes
The near blue projection hoped.
Accordingly, it is desirable to be able to provide the such as backlight liquid crystal of the color homogeneity with enhancing to show
The display of device.
Utility model content
Display can have the array of the pixel displaying to the user that image.The array of pixel can be by liquid
Brilliant display layer is formed.The array of pixel can have the back lighting of back light unit.Back light unit can
There is photoconductive layer.The array of light emitting diode can emit light in the edge of photoconductive layer.
Photoconductive layer can be overlapping with back-reflector.Back-reflector can comprise by the reflection on substrate
Property dielectric layer lamination formed backlight panel.Back-reflector also can comprise and has and backlight
The band of the back-reflector band at the edge that the marginal portion of reflector panel is overlapping.
Light emitting diode can be installed on flexible print circuit.The band of back-reflector band can
It is attached to flexible print circuit.The color compensating feature of such as printing color ink pattern can be
Formed in back-reflector.Such as, printing color ink can be anti-at back-reflector band or backlight
Formed in the some of emitter panel.Printing color ink can be according to the band of chromatic ink
The pattern of shape or pigmented ink point is formed.Ink can be yellow, or can have and contribute to
Compensate other color of undesirable backlight color change.If desired, ink can have
Thermochromism.The existence of ink for optionally adjust back light unit with light emitting diode phase
The color of the adjacent back lighting in some, thus makes color homogeneity maximize.
According to an embodiment, disclose a kind of display, it is characterised in that described display
Including: form the display layer of the array of pixel；With the backlight providing the back lighting for pixel
Structure, wherein, backing structure comprises back-reflector, and back-reflector has enhancing backlight and shines
The color compensating feature of bright color homogeneity.
According to preferred embodiment, back-reflector comprises the band of back-reflector band, and
Wherein, color compensating feature is formed at least in part on back-reflector band.
According to preferred embodiment, color compensating feature comprises pigmented ink feature.
According to preferred embodiment, color compensating feature comprises printer's ink water spot.
According to preferred embodiment, printer's ink water spot has across back-reflector band and becomes with distance
Density.
According to preferred embodiment, color compensating feature comprises printing on back-reflector band
The band of chromatic ink.
According to preferred embodiment, the band of printing color ink comprises the printing ink of yellow
Band.
According to preferred embodiment, backing structure comprises photoconductive layer, and wherein, back-reflector is also
Comprise the back-reflector panel with the edge overlapping with the marginal portion of back-reflector band,
Wherein, display also includes the flexible print circuit being provided with light emitting diode on it, wherein,
Back-reflector band has an edge overlapping with flexible print circuit, and wherein, light-emitting diodes
Pipe emits light in photoconductive layer.
According to preferred embodiment, back-reflector comprises ground floor and the second layer, and wherein,
Backing structure comprises the photoconductive layer with the marginal portion being inserted between ground floor and the second layer.
According to preferred embodiment, ground floor comprises reflector bands, and wherein, second layer bag
Containing top reflector, and wherein, color compensating feature comprise on top reflector color ink
Water.
According to preferred embodiment, color compensating feature comprises thermochromic inks.
According to preferred embodiment, it is anti-that back-reflector comprises the backlight formed by white plastic layer
Emitter band and there is the rectangular backlight reflector panel of lamination of dielectric layer, and wherein, face
Colorimetric compensation layer comprises the part and the one of covering back-reflector panel covering back-reflector band
The pigmented ink of part.
According to another embodiment, disclose a kind of display, it is characterised in that described display
Device includes: have the liquid crystal display layer of the array of pixel；With the array offer backlight photograph to pixel
Bright backing structure, wherein, it is overlapping with back-reflector that backing structure comprises back-reflector
Photoconductive layer and the array of light emitting diode in emitting light into the edge of photoconductive layer, and its
In, backing structure comprises the pigmented ink in back-reflector, and described pigmented ink compensates backlight
Illuminate the color across backing structure to change.
According to preferred embodiment, back-reflector has Part I and Part II, and
Wherein, pigmented ink is formed the most over the first portion.
According to preferred embodiment, the Part I of back-reflector comprises the band of white band.
According to preferred embodiment, Part II comprises back-reflector panel, back-reflector
Panel comprises the lamination of the dielectric layer at least with first refractive index and the second refractive index, and
Wherein, the marginal portion of back-reflector panel is overlapping with the marginal portion of the band of white band.
According to preferred embodiment, described display also includes the clear coat being covered with chromatic ink.
According to preferred embodiment, pigmented ink comprise different colours the first pigmented ink layer and
Second pigmented ink layer.
According to preferred embodiment, described liquid crystal display includes: the array of liquid crystal display pixel；
With the back light unit that the array of liquid crystal display pixel is provided backlighting for, wherein, back light unit
Comprise the array of light emitting diode, rectangular backlight reflector, photoconductive layer and back-reflector band
Band, described photoconductive layer receives the light of the array from light emitting diode and reflects with rectangular backlight
Thinking highly of folded, the band of described back-reflector band is adjacent with the array of light emitting diode, have with
The edge of the imbricate of rectangular backlight reflector and have and minimize back lighting across backlight list
The pigmented ink of the color change of unit.
According to preferred embodiment, pigmented ink comprises yellow ink, and described yellow ink reduces
The blueness of back lighting in the region adjacent with the array of light emitting diode.
Accompanying drawing explanation
Fig. 1 is the explanatory electricity of the laptop computer such as with display according to embodiment
The perspective view of subset.
Fig. 2 is the explanatory electricity of the hand-hold electronic equipments such as with display according to embodiment
The perspective view of subset.
Fig. 3 is the explanatory electronics of the tablet PC such as with display according to embodiment
The perspective view of equipment.
Fig. 4 is the explanatory of the computer display such as with display structure according to embodiment
The perspective view of electronic equipment.
Fig. 5 is the cross-section side view of the explanatory display according to embodiment.
Fig. 6 is the diagram according to embodiment, and this diagram compensates display and color for not color
Compensate display draw the color parameter of display with to the light emitting diode matrix in backlight away from
Relation between from.
Fig. 7 is the back light unit with reflector with color compensating layer according to embodiment
The perspective view of marginal portion.
Fig. 8 is the section side of the explanatory back light unit according to the type shown in Fig. 7 of embodiment
View.
Fig. 9 is the edge part of the back light unit with ribbon color compensating layer according to embodiment
The top view divided.
Figure 10 is the backlight list with the color compensating layer with graded density according to embodiment
The top view of the marginal portion of unit.
Figure 11 is the part with the back light unit covering color compensating layer according to embodiment
Top view.
Figure 12 is the limit of the back light unit with space change color compensating layer according to embodiment
The top view of edge portion.
Figure 13 is the cross-section side view of a part for the explanatory back-reflector according to embodiment,
Represent how reflector can have the color compensating ink layer of printing.
Figure 14 is the cross-section side view of a part for the explanatory back-reflector according to embodiment,
Represent how reflector can have the color compensating feature formed by multiple ink layer.
Figure 15 is the cross-section side view of a part for the explanatory back-reflector according to embodiment,
Represent how color compensating feature can be covered by protective clear layer.
Figure 16 is that the expression according to embodiment can be how from the color of the light of color compensating layer reflection
The diagram changed with the temperature of layer.
Figure 17 is how the color of the expression back-reflector according to embodiment is can be due to color benefit
The addition of compensation structure and with the diagram of position change.
Figure 18 is that the density representing inkspot or other color compensating feature according to embodiment can
How with the diagram of the position change in back-reflector.
Detailed description of the invention
Electronic equipment can include display.Display can be used for displaying to the user that image.At figure
1, in Fig. 2, Fig. 3 and Fig. 4, expression can have the explanatory electronic equipment of display.
Fig. 1 represents how electronic equipment 10 can have the shape of laptop computer, and this is on knee
Computer have upper shell 12A and have such as keyboard 16 and touch pad 18 parts lower outside
Shell 12B.Equipment 10 can have the upper shell 12A of permission relative to lower casing 12B around rotation
The hinge arrangement 20 that axle 24 rotates along direction 22.Display 14 can be installed in shell 12A
On.By (sometimes can be described as around rotary shaft 24 shell 12A in lower casing 12B rotation
Display casing or lid), upper shell 12A is placed in make position.
Fig. 2 represents how electronic equipment 10 can be such as cell phone, music player, game
The handheld device of equipment, navigation elements or other mini-plant.Such for equipment
In the configuration of 10, shell 12 can have relative front surface and rear surface.Display 14 can quilt
It is installed on before shell 12.If desired, display 14 can have for such as
The opening of the parts of button 26.Opening also can be formed to accommodate speaker end in display 14
Mouth (for example, with reference to the speaker port 28 of Fig. 2).
Fig. 3 represents how electronic equipment 10 can be tablet PC.Electronic equipment at Fig. 3
In 10, shell 12 can have relative planar front surface and rear surface.Display 14 can be pacified
It is loaded on the front surface of shell 12.As it is shown on figure 3, display 14 can have for accommodate by
The opening (as an example) of button 26.
Fig. 4 represent electronic equipment 10 can how for such as computer display display or can
Think the computer being integrated in computer display.By the layout of this installation, it is used for setting
The shell 12 of standby 10 can be installed in the supporting construction of such as support 27, or support 27
(such as, being installed on wall by equipment 10) can be omitted.Display 14 can be installed in
On before shell 12.
The explanatory configuration for equipment 10 shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4 is only to solve
The property released.Usually, electronic equipment 10 can be laptop computer, comprise embedding computer
Computer monitor, tablet PC, cell phone, media player or other hand-held or
Portable electric appts, relatively mini-plant (such as watch equipment, pendant equipment, earphone or ear
Plug equipment) or other wearable or compact apparatus, do not comprise and embed the computer of computer and show
Show device, game station, navigator, such as there are the electronics of display be installed in and sell
The embedded system of the system in goods booth or automobile, two or more that realize in these equipment
The equipment of function or other electronics.
Be sometimes referred to as housing equipment 10 shell 12 can by such as plastics, glass, pottery,
Carbon fibre composite or other fiber-base composite materials, metal (such as, processing aluminum, stainless
Steel or other metal), the material of the combination of other material or these materials formed.Equipment 10
Can by use in shell 12 largely or entirely by single structural element, (such as, one adds
Work metal or a molded plastics) monomer that formed constitutes and formed, or can be tied by multiple shells
Structure (such as, is installed in the outer enclosure in inner frame key element or other inner shell structure
Structure) formed.
Display 14 can be the touch-sensitive display comprising touch sensor, or can be right
Touch insensitive.Touch sensor for display 14 can be by capacitive touch screen electrode array
Row, resistive touch array, based on acoustic touch, optical touch or touching technique based on power
Touch sensor arrangement or other suitable touch sensor parts are formed.
Display 14 for equipment 10 can comprise and formed by liquid crystal display (LCD) parts
Pixel.Display cap rock can cover the surface of display 14, or such as color-filter layer is aobvious
Show layer, or outermost that the other parts of display are used as in display 14 (or almost
Outermost) layer.Outermost display layer can be by clear glass sheet material, clarity plastic layer or other hyalomere
Part is formed.
Represent display 14 (such as, Fig. 1, Fig. 2, Fig. 3, the figure of equipment 10 in Figure 5
The display 14 of the equipment of 4 or other suitable electronic equipment) the section side of explanatory composition
View.As it is shown in figure 5, display 14 can comprise the back light unit 42 such as producing backlight 44
Backing structure.In action, backlight 44 outwards (is hung down along dimension Z in the orientation of Fig. 5
The most upwards) advance, and through the display pixel structure in display layer 46.This illumination is by showing
Any image for user's viewing that pixel produces.Such as, backlight 44 can illumination observation person 48
Image on the display layer 46 of direction 50 viewing.
Display layer 46 can be installed in such as plastic chassis structure and/or the end of metal chassis structure
In dish structure, to be formed for being installed on the display module in shell 12, or display layer 46
Can be directly mounted in shell 12 (such as, by display layer 46 is laminated in shell 12
In female in).Display layer 46 can form liquid crystal display, or may be used to form
Other type of display.
Display layer 46 can comprise the liquid crystal layer of such as liquid crystal layer 52.Liquid crystal layer 52 can be sandwiched in all
As between display layer 58 and the display layer of 56.Layer 56 and 58 can be inserted into lower polarizer layers 60
And between upper polarizer layers 54.
Layer 58 and 56 can be formed by the transparent substrate layer of such as clear glass or plastic layer.Layer 58
Can be the layer of such as tft layer and/or color-filter layer with 56.Can be at layer 58 and 56
Substrate on formed conductive trace, color filter element, transistor and other circuit and structure (with
Such as form tft layer and/or color-filter layer).Touch sensor electrode also can be incorporated into that
In the layer of such as layer 58 and 56, and/or touch sensing can be formed on other substrate
Device electrode.
By a kind of explanatory composition, layer 58 can be to comprise pixel based on thin film transistor (TFT) electricity
Road array and for applying electric field to liquid crystal layer 52 and showing image the most on display 14
The tft layer of related electrode (pixel electrode).Layer 56 can be to comprise to show for making
Show that device 14 can show the color-filter layer of the array of color filter elements of coloured image.It is it desired to
Words, layer 58 can be color-filter layer, and layer 56 can be tft layer.It is used as
Color filter element and the thin-film transistor structure shared base in the top or bottom of display 14
The composition of combination on flaggy.
In the operation of display 14 in apparatus 10, control circuit (such as, printed circuit
On one or more integrated circuits) can be used for producing the information shown on display 14
(such as, video data).Information to be shown can be sent to all by using signal path
Such as the display-driver Ics of circuit 62A or 62B, described signal path is all in this way by all
The signal formed such as the conductive metal trace in the rigidity of printed circuit 64 or flexible print circuit
Path (as an example).
Backing structure 42 can comprise the photoconductive layer of such as photoconductive layer 78.Photoconductive layer 78 can be by such as
Transparent glass or plastics (such as, forming the molded plastics of optical plate, thin flexible plastic film etc.)
Transparent material formed.In the operation of backing structure 42, such as the light source of light source 72 can produce
The third contact of a total solar or lunar eclipse 74.Light source 72 can the array of for example, light emitting diode.
Can be coupled to from the light 74 of light source 72 in the edge surface 76 of optical plate 78, and
Owing to the principle of total internal reflection can be distributed along dimension X and Y in whole photoconductive layer 8.Photoconductive layer
78 can comprise such as hole or projection or the scattering characteristics of other light scattering structure.Light scattering is special
Levy on the upper surface and/or the relative lower surface that can be located at photoconductive layer 78.Light source 72 can be located at figure
The left side of the photoconductive layer 78 shown in 5, or can be along other of the right hand edge of layer 78 and/or layer 78
Edge is positioned.
Can be used as the backlight of display 14 along the light 74 that Z-direction upwards scatters from photoconductive layer 78
44.The light 74 of scattering can be reflected back toward in the upward direction by reflector 80 downwards.Reflection
Device 80 can be formed by the reflecting material of the plastic layer such as covered by electrolyte mirror film coating.
The zone of reflections (such as, white plastic tape or the band that formed by other reflecting material) can be incorporated into that with
In the back-reflector of display 14.Such as, backing structure 42 can comprise along with luminous two
The band of the band of the edge walking of the reflector 80 that pole pipe 72 is adjacent.
In order to strengthen the backlight performance of backing structure 42, backing structure 42 can comprise blooming 70.
Blooming 70 can comprise contribute to making backlight 44 homogenization and thus reduce hot spot diffusion layer,
(have for strengthening the compensation film observed outside axle and the brightness enhancement film for collimation backlight 44
Time be also referred to as turning film (turning film)).Blooming 70 can with in back light unit 42
Other Structural superposition of such as photoconductive layer 78 and reflector 80.Such as, if photoconductive layer 78
There is in the X-Y plane of Fig. 5 rectangular foot-print (footprint), then blooming 70
With the rectangular foot-print that reflector 80 can have coupling.If desired, film is such as compensated
Film can be added in other layer (such as, polarization layer) of display 14.
Light 74 from light emitting diode 72 can be by the color filter unit in color-filter layer 56
Part is converted into the white light of desired color (such as, red, blue, green etc.).Due to
, there is light 74 (thus scattered light 44) and have near diode 72 in various undesirable effects
The probability of the color different with each position traveling further into photoconductive layer 78.These are paid no attention to
Think that effect includes that thermograde (such as, causes the diode 72 that the birefringence in layer 52 changes
Near high temperature, the change of these birefringences may result in the light 44 from backing structure 42 close
Indigo plant is become on the position of diode 72；Angle from the output color of the light 74 of diode 72 depends on
Lai Xing, this dependence of angle may result in transmitting in the larger angle of the axle Y relative to Fig. 5
Light is more yellow than the light launched in the smaller angle relative to axle Y；The material of photoconductive layer 78
Absorption based on wavelength, such as makes gold-tinted further advance in layer 78 than blue light, from
And light 74 is more blue than position farther in entering layer 78 near diode 72；In layer 52
Uneven, the most in uneven thickness, this in uneven thickness may be at the adjacent edges of structure 42
The most substantially and the spectrum of the light 44 being transmitted through layer 46 can be affected, etc.).These are paid no attention to
Think the perceived color projection that effect may result on display.Such as, the luminescence of back light unit it is close to
The edge of the display of diode may tend to more blue than desired.
In order to compensate the undesirable color change in backlight 44, display 14 can have color
Compensating for variations structure (is sometimes referred to as colour compensating structure, color compensating feature, color correct knot
Structure, color compensating for variations feature etc.).Colour compensating structure can be by printing pigmented ink or can be to
Backlight 44 gives other structure of desired color and is formed.As an example, the back of the body in structure 42
Reflective optical system can have the yellow band adjacent with light emitting diode 72.This portion in backlight 42
There is yellow band in Fen and can help to adjust the color (example of the light 44 near light emitting diode 72
As, yellow band can help to be converted into the band of excessively blue light 44 with in structure 42 other
The light 44 of the identical color of light 44 that place launches).
Fig. 6 is to illustrate the color (being expressed as representative colors parameter C) of light 44 and to luminous two
The diagram of the relation of distance Y of pole pipe 72.Parameter C can be that the color relevant to light 44 is sat
Mark, can represent the ratio of the gold-tinted in light 44 and blue light, can be color temperature value, or can be generation
Table carrys out other parameter any of the color of the light 44 of self-structure 42.Line 90 represents is not having color
In the back light unit of complementary characteristics, how color C can change with the distance to light emitting diode 72.
Line 92 is corresponding with the display of such as display 14, in this display, has color compensating special
The back-reflector levied is added in structure 42.As shown in line 90, mend there is not color
In the case of repaying feature, the color of backlight 44 can be (that is, at region R near diode 72
In) (such as, as shown in the reduction of the curve 90 in the R of region, light 44 may in substantially change
In the R of region the most blue).When comprising the band of yellow material in back-reflector or work as
When other color compensating feature is added in structure 42 in the R of region, with backlight 44 upwards
The light of reflection will tend to more yellow in the R of region.When the yellow material in the R of region or other color
When the density of collocation structure and color are configured satisfactorily, in the R of region, it is applied to backlight
The amount of the color correction on 44 will be enough to offset the acquisition blueness projection of the backlight 44 in this region
Or the trend of other undesirable color projection.As shown in line 92, such as, color compensating knot
Structure can ensure that backlight 44 has on all values of distance Y to light emitting diode 72 uniformly
(that is, the yellow material in region R is by the nearly blueness of the light 44 in counteracting region R for color
Essence, and therefore cause across all of back light unit 42 and the light of display 14 uniform color C).
Usually, during colour compensating structure can be added into any suitable part of display 14
(such as, in layer 46, between layer 46 and backing structure 42 or in structure 42).
By the suitable configuration that sometimes can describe herein as example, in backing structure 42
Catoptric arrangement can have coloured part (such as, by the polymer shape comprising illuminating colour or pigment
The pigmented ink become) or other coloured material.These coloured parts are by joining that pigmented ink is formed
Can be described herein as example when being equipped with.Usually, it is possible to use any suitable material
And/or structure is with the light 44 to the layer 46 launched from backing structure 42 and through display 14
Carry out color amendment.It is only explanatory for using the color compensating feature formed by printing pigmented ink
's.
Pigmented ink can be by using inkjet printing, silk screen printing, liner printing, other type
Printing, spray, sputter, be deposited with or other physical gas phase deposition technology or other manufacturing technology
It is deposited on back-reflector (such as, by polymeric film or other substrate and/or one or more
The part of reflexive rectangular backlight panel that the banding zone of reflections is formed) or other of backing structure 42
In part.Pigmented ink is applied on the layer of the material in backing structure 42 by using printing
Be described herein as example when being configured with.
Fig. 7 is the color compensating feature band by the yellow ink printed on back-reflector band
The perspective view of a part for backing structure 42 in the explanatory configuration formed.As it is shown in fig. 7,
Backing structure 42 can comprise the structure in the chassis being installed on such as plastic chassis 96.These knots
Structure can comprise the back-reflector of such as reflector 80.Reflector 80 can comprise formation reflector
(that is, the region of covering display 14 is most for the rectangular layer of the reflector material of 80-2
Square reflector panel).Reflector 80-2 can be by the high index of refraction electrolyte repeating (alternately)
Layer and the lamination of low-refraction dielectric layer or for producing other of high reflection broadband reflection structure
Structure (such as, having the reflector of the reflectance more than 99%) is formed.Reflector 80-1
Can be formed by the zone of reflections (such as, white plastic band or other zone of reflections).Reflector 80-1 can
There is bonding agent (such as, pressure sensitive adhesive or other bonding agent).Such as, reflector
80-1 can have bond layer so that reflector 80-1 to be attached to flexible printing electricity in region 100
Road 98.
Flexible print circuit 98 can be by polyimide layer or the flexible sheet material of other polymeric material
Formed.A part for the upper surface exposed of flexible print circuit 98 can be by such as bonding agent 102
Bond layer cover.Bonding agent 102 can have along the display adjacent with light emitting diode 72
The shape of the elongate strips of the edge walking of 14, and, can be used for helping photoconductive layer 78
Edge be fixed on flexible print circuit 98, and thus layer 78 is held in back light unit 42
Suitable position on.
Metal in flexible print circuit 98 can couple with current source.The luminescence of such as Fig. 7
The light emitting diode of diode 72 can be soldered in the metal of flexible print circuit 98
(that is, pad is formed by metal trace).Such as, can along the marginal existence of display 14 such as
1～10, more than 2, less than 10 or the battle array of other an appropriate number of light emitting diode 72
Row.Light emitting diode 72 can be formed along display 14 a edge, or can be at display
Formed on the relative edge of 14 (such as, on the left hand edge and right hand edge of display 14,
Or formed on the top edge and lower limb of display 14).In operation, in equipment 10
Current source can apply electric current to light emitting diode 72, with control produced by light emitting diode 72
The amount of light 74.If desired, part 96 ' can be overlapping with light emitting diode 72.Unit
A part (that is, top reflector) for back-reflector structure in 42 can be under part 96 '
Overlapping with photoconductive layer 78.
In order to compensate the undesirable color change in backlight 44, multiple portions of backing structure 42
Divide and can have color compensating feature.In the example of fig. 7, color compensating feature can be according to color
The form of the band of ink (such as, yellow ink or the ink of other color) is arranged on instead
Penetrate in the region 100 of band 80-1.This is only explanatory.Pigmented ink may be disposed at backlight
On other region of reflector 80 (such as, only in a part of reflector 80-1, in institute
On some reflector 80-1, only in a part of reflector 80-2, at all of reflector
80-2 is upper, in a part of all of reflector 80-1 and reflector 80-2, at reflector
In a part of 80-1 and a part of reflector 80-1 and the top following in region 96 ' is anti-
In emitter, etc.).
The marginal portion of back-reflector layer 80-2 can be with the back-reflector layer in region 94
The marginal portion of (carrying) 80-1 is overlapping.Cross-section side view institute such as the backing structure 42 of Fig. 8
Show, the edge of photoconductive layer 78 can in the back light unit assembled with the edge of reflector layer 80-2
Overlapping.Top back-reflector 106 can be inserted into the edge of photoconductive layer 78 and the chassis portion of suspension
Divide between 96 '.Pressure sensitive adhesive 104 or other bonding agent can be used for back-reflector
The zone of reflections 80-1 of 80 is attached to flexible print circuit 98.Back-reflector panel 80-2 can be with
Band 80-1 in region 94 is overlapping, and (that is, the edge of band 80-1 can be located at reflector 80-2 and the end
Between dish 96).
The periphery edge of backing structure 42 (that is, surrounds the rectangle at four edges of photoconductive layer 78
Ring) the inertia region IA for display 14 can be formed.Inertia region IA is display
The part of 14, in the portion, backlight 44 is not irradiated display layer 46 and there is not display layer
The pixel of 46.The inertia region IA of display 14 can surround zone of action AA.Behaviour area
Territory AA can have the rectangular shape comprising pel array (that is, the row and column of pixel).In order to
Guaranteeing the uniform color of display 14 in the AA of zone of action, color compensating feature can not lived
It is added in backing structure 42 in dynamic region IA and/or in the AA of zone of action.Such as, face
Colorimetric compensation feature can such as region on the edge closest to the band 80-1 of light emitting diode 72
(such as, the band 80-1 between region 100 and region 94 in the region of 100, in region 108
Ribbon region) in, region 94 (such as, reflector 80-2 overlapping with band 80-1 it
Place) in, other places (example in the region 110 being close to region 94, on reflector 80-2
As, see region 112) in and/or region 114 on the lower surface of top reflective band 106
All or part of (such as, be attached to chassis portion 96 ' by bonding agent and/or be attached to
The white plastic band of photoconductive layer 78) upper formation.By by special to pigmented ink or other color compensating
Levy in these regions joining backing structure 42, can be along the back of the body adjacent with light emitting diode 72
The edge of photo structure 42 eliminates or at least reduced the backlight 44 of indigo plant.Also this side can be passed through
Formula reduces the color deviation in other region of display 14.
Fig. 9, Figure 10, Figure 11 and Figure 12 are the top views of the marginal portion of back light unit 42,
These top views represent the explanatory pattern of the color compensating feature that can be used in back light unit 42.
In the example of figure 9, colour compensating structure 16 comprises printing pigmented ink in region 110
The compensation material of band or other color.Structure 116 can have along adjacent with light emitting diode 72
Reflector 80 edge walking elongate rectangular shape.
In the example of Figure 10, colour compensating structure 116 comprises the figure of the point with density gradient
Case (circular dot, rectangular dots, other shapes of point etc.).In the example of Figure 10, structure
Density transversely dimension Y of the point in 116 subtracts with the increase of the distance to light emitting diode
Little.If desired, it is possible to use across the surface of reflector 80, there is its of different density
Its colour compensating structure.
In the example of Figure 11, all of reflector 80 is covered by the layer of colour compensating structure 116
Lid.In this type of configuration, colour compensating structure 116 can be by such as varying with temperature face
The material layer of the thermochromic inks of color is formed.Limit when light emitting diode 72 heater reflector 80
During edge, the heating edge along reflector 80 is changed and (such as, becomes yellow by the color of structure 116
Color), thereby compensate for the color deviation at edge along display 14.
As shown in the explanatory configuration of Figure 12, can be by transverse dimensions X along display (with aobvious
Show the sides aligned parallel of device 14 and along the light emitting diode 72 to the edge of photoconductive layer 78 supply light
Array walking) and transverse dimensions Y change density pattern formed colour compensating structure 116.
There are two clusters of colour compensating structure 116 in the present example: concentrate on light emitting diode 72
In first before cluster 116-1；With second concentrated in light emitting diode 72
Before cluster 116-2.This is only explanatory.Color can be there is on reflector 80 mend
Repay a little or any an appropriate number of cluster (such as, each light emitting diode of other structure 116
72 1 colonies, etc.).
The cross-section side view of Figure 13 represents that how colour compensating structure 116 is can be by being patterned on reflector
80 (such as, reflector 80-1 and/or reflector 80-2, and/or if desired,
Top reflector 106) surface on stamping ink water layer formed.As about Fig. 9, Figure 10,
As Figure 11 and Figure 12 describes, structure 116 can be patterned to be formed a series of point or its
The zone of dispersion of its shape, or can be patterned to cover the bigger section of reflector 80 (such as,
The ribbon band walked along the edge of display 14, coverlay etc.).
If desired, multiple layers of marking ink may be used to form structure 116.Such as,
First ink layer 116 can be covered (complete or portion by the additional ink water layer of such as second layer 116A
Point).Layer 116A and 116B can have identical color (such as, yellow) or can have
Different color (such as, in layer 116A and 116B can be yellow and another be
Redness, etc.).Use multiple material layer can allow structure 116 when forming structure 116
Such as the optical property of reflection, light scattering and reflectance spectrum (color) is optimised, so that backlight
The color homogeneity of 44 maximizes.
Figure 15 is that the transparent protective film of such as clear layer 120 is placed on the top of structure 116
Configuration in the cross-section side view of colour compensating structure 116.Layer 120 can be by transparent polymer
(such as, the bonding agent of solidification), transparent inorganic layer (such as, silicon oxide etc.) or and face
Other protecting film of colorimetric compensation structure 116 overlap is formed.There is coating 120 and contribute to protection knot
Structure 116 is to make it from owing in display 14, the such as friction of the structure of photoconductive layer 98 causes
Damage.
For form the ink of structure 116 or other material can be yellow uitramarine ink (such as,
There is the polymer of yellow uitramarine), weld ink (such as, has the poly-of weld
Compound), gathering of other additive comprising dyestuff, pigment or imparting other color of structure 116
Compound, or other coloring structure.If desired, ink 116 can be by such as cholesteric liquid
The thermochromic ink water layer of crystal layer is formed.The reflection face drawing explanatory thermochromatic material such as Figure 16
Shown in the curve 112 of the relation of color C and temperature T, from the color of the light of thermochromic inks reflection
Can change with applying temperature.Owing to the temperature-responsive of backlight 80 produces from light emitting diode 72
Heat increase, the reflection colour of the thermochromatic material therefore forming structure 116 will be with to luminous two
The distance of pole pipe 72 and change.As result, the color compensating intensity of structure 116 can be configured
For tending to undesirably for (that is, structure the strongest near blue light emitting diode 72 at light 44
116 can be the most yellow).
If desired, the color of colour compensating structure 116 can be with across back-reflector (example
As, back-reflector layer 80 and/or upper reflector 106) the lateral separation on surface with continuously or
Semi-continuous mode changes.As shown in the curve 124 in Figure 17, such as, the face of structure 116
Color C can change with distance Y to light emitting diode 72.Such as curve 126 institute in Figure 18
Showing, point or density D of other color generation attribute in structure 116 can change (example with distance Y
As so that back-reflector 80 is the most yellow in place of light emitting diode 72, and sends out along with arriving
The increase of distance Y of optical diode and gradually decrease yellow).If desired, can make
With other pattern of structure 116 (such as, or density D of other structure 116 is at X and Y
The pattern all changed in transverse dimensions, etc.).The composition of Figure 18 is only explanatory.
Below it is only explanatory, and, those skilled in the art can be without departing substantially from the reality described
Various amendment is proposed in the case of executing the scope and spirit of example.Above embodiment can be by independently
Realize or be implemented with any combination.
This application claims at the U.S. Patent application No. that on October 12nd, 2015 submits to
14/881065 and on April 20th, 2015 submit to temporary patent application No.62/150066
As priority, here add their full content as reference.
Claims (20)
1. a display, it is characterised in that described display includes:
Form the display layer of the array of pixel；With
Thering is provided the backing structure of the back lighting for pixel, wherein, backing structure comprises backlight
Reflector, back-reflector has the color compensating feature of the color homogeneity strengthening back lighting.
2. display as claimed in claim 1, it is characterised in that back-reflector comprises the back of the body
The band of reflective optical system band, and wherein, color compensating feature reflects in backlight at least in part
Formed on device band.
3. display as claimed in claim 2, it is characterised in that color compensating feature comprises
Pigmented ink feature.
4. display as claimed in claim 3, it is characterised in that color compensating feature comprises
Printer's ink water spot.
5. display as claimed in claim 4, it is characterised in that printer's ink water spot is across backlight
Reflector bands has the density become with distance.
6. display as claimed in claim 2, it is characterised in that color compensating feature comprises
The band of the printing color ink on back-reflector band.
7. display as claimed in claim 6, it is characterised in that the bar of printing color ink
Band comprises the band of the printing ink of yellow.
8. display as claimed in claim 7, it is characterised in that backing structure comprises photoconduction
Layer, wherein, back-reflector also comprise have overlapping with the marginal portion of back-reflector band
The back-reflector panel at edge, wherein, display also includes being provided with on it light emitting diode
Flexible print circuit, wherein, back-reflector band has the limit overlapping with flexible print circuit
Edge, and wherein, light emitting diode emits light in photoconductive layer.
9. display as claimed in claim 1, it is characterised in that back-reflector comprises the
One layer and the second layer, and wherein, backing structure comprises to have and is inserted in ground floor and the second layer
Between the photoconductive layer of marginal portion.
10. display as claimed in claim 9, it is characterised in that ground floor comprises reflection
Device band, and wherein, the second layer comprises top reflector, and wherein, color compensating feature
Comprise the pigmented ink on top reflector.
11. display as claimed in claim 1, it is characterised in that color compensating feature bag
Containing thermochromic inks.
12. display as claimed in claim 1, it is characterised in that back-reflector comprises
The back-reflector band formed by white plastic layer and there is the rectangular backlight of lamination of dielectric layer
Reflector panel, and wherein, color compensating layer comprises the part covering back-reflector band
And cover the pigmented ink of a part for back-reflector panel.
13. 1 kinds of display, it is characterised in that described display includes:
There is the liquid crystal display layer of the array of pixel；With
The backing structure providing backlighting for the array of pixel, wherein, backing structure comprises the back of the body
Photoconductive layer that reflective optical system is overlapping with back-reflector and emit light into the edge of photoconductive layer
The array of light emitting diode, and wherein, backing structure comprises the coloring in back-reflector
Ink, described pigmented ink compensates back lighting and changes across the color of backing structure.
14. display as claimed in claim 13, it is characterised in that back-reflector has
Part I and Part II, and wherein, pigmented ink is formed the most over the first portion.
15. display as claimed in claim 14, it is characterised in that the of back-reflector
A part comprises the band of white band.
16. display as claimed in claim 15, it is characterised in that Part II comprises the back of the body
Reflective optical system panel, back-reflector panel comprise at least have first refractive index and second refraction
The lamination of the dielectric layer of rate, and wherein, the marginal portion of back-reflector panel and white
The marginal portion of the band of band is overlapping.
17. display as claimed in claim 13, it is characterised in that described display also wraps
Include the clear coat being covered with chromatic ink.
18. display as claimed in claim 13, it is characterised in that pigmented ink comprises not
The first pigmented ink layer and the second pigmented ink layer with color.
19. 1 kinds of liquid crystal displays, it is characterised in that described liquid crystal display includes:
The array of liquid crystal display pixel；With
The back light unit that the array of liquid crystal display pixel is provided backlighting for, wherein, backlight list
Unit comprises the array of light emitting diode, rectangular backlight reflector, photoconductive layer and back-reflector band
Band, described photoconductive layer receives from the light of array of light emitting diode and anti-with rectangular backlight
Emitter is overlapping, and the band of described back-reflector band is adjacent with the array of light emitting diode, has
With the edge of the imbricate of rectangular backlight reflector and have and minimize back lighting across backlight
The pigmented ink of the color change of unit.
20. liquid crystal displays as claimed in claim 19, it is characterised in that pigmented ink bag
Containing yellow ink, described yellow ink reduces in the region adjacent with the array of light emitting diode to be carried on the back
The blueness of optical illumination.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562150066P | 2015-04-20 | 2015-04-20 | |
| US62/150,066 | 2015-04-20 | ||
| US14/881,065 | 2015-10-12 | ||
| US14/881,065 US9857521B2 (en) | 2015-04-20 | 2015-10-12 | Liquid crystal display with backlight color compensation structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205507309U true CN205507309U (en) | 2016-08-24 |
Family
ID=55808870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620298349.2U Expired - Fee Related CN205507309U (en) | 2015-04-20 | 2016-04-12 | Display and LCD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205507309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919102A (en) * | 2017-11-22 | 2018-04-17 | 广东欧珀移动通信有限公司 | The control method of electronic device and electronic device |
| CN108121102A (en) * | 2016-11-30 | 2018-06-05 | 乐金显示有限公司 | Display device and its compensation data method |
| US10852582B2 (en) | 2018-10-26 | 2020-12-01 | Apple Inc. | Electronic device display with a backlight |
-
2016
- 2016-04-12 CN CN201620298349.2U patent/CN205507309U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121102A (en) * | 2016-11-30 | 2018-06-05 | 乐金显示有限公司 | Display device and its compensation data method |
| CN108121102B (en) * | 2016-11-30 | 2020-12-25 | 乐金显示有限公司 | Display device and data compensation method thereof |
| CN107919102A (en) * | 2017-11-22 | 2018-04-17 | 广东欧珀移动通信有限公司 | The control method of electronic device and electronic device |
| CN107919102B (en) * | 2017-11-22 | 2019-08-06 | Oppo广东移动通信有限公司 | The control method of electronic device and electronic device |
| US10852582B2 (en) | 2018-10-26 | 2020-12-01 | Apple Inc. | Electronic device display with a backlight |
| US10866458B2 (en) | 2018-10-26 | 2020-12-15 | Apple Inc. | Electronic device display with a backlight and control circuitry that corrects pixel data to reduce transition artifacts |
| US11221513B2 (en) | 2018-10-26 | 2022-01-11 | Apple Inc. | Electronic device display with a backlight |
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