CN107741671A - A kind of display device and preparation method thereof - Google Patents
A kind of display device and preparation method thereof Download PDFInfo
- Publication number
- CN107741671A CN107741671A CN201711072094.3A CN201711072094A CN107741671A CN 107741671 A CN107741671 A CN 107741671A CN 201711072094 A CN201711072094 A CN 201711072094A CN 107741671 A CN107741671 A CN 107741671A
- Authority
- CN
- China
- Prior art keywords
- led
- micro
- underlay substrate
- display device
- miniature
- 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.)
- Granted
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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- 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
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The embodiment of the invention discloses a kind of display device and preparation method thereof.The display device includes：Display panel and back light unit, the back light unit include multiple micro-led；Wherein, it is the multiple it is micro-led be passive miniature light emitting diode.Because micro-led size is very small, when back light unit is bonded with display panel, Anawgy accuracy requires low；Multiple micro-led by the way of passive matrix, driving method is simple；Also, for multiple micro-led conduct back light units relative to back light unit of the prior art, thickness is more frivolous, reduces the thickness of whole display device.
Description
Technical field
The present embodiments relate to display technology field, more particularly to a kind of display device and preparation method thereof.
Background technology
LCDs (Liquid Crystal Display, LCD), is the one kind for belonging to flat-panel screens.With section
The development of skill, the current scientific and technological information products of LCD also develop towards light, thin, short, small target.
LCD belongs to passive type light-emitting component, needs to set back light member to provide light for LCD when LCD carries out luminescence display
Source.In the prior art after the completion of LCD preparations, typically LCD and back light unit are fit together by aligning fitting, contraposition patch
It is higher to close required precision.Also, back light unit thickness of the prior art is thicker, cause the final thickness of LCD products thicker, no
Meet the lightening development trends of LCD.
The content of the invention
The present invention provides a kind of display device and preparation method thereof, and with solution, back light unit thickness is thicker in the prior art,
And Anawgy accuracy requires higher technical problem when being bonded with display panel.
In a first aspect, the embodiments of the invention provide a kind of display device, the display device includes display panel and the back of the body
Light unit, the back light unit include multiple micro-led；Wherein, it is the multiple it is micro-led be passive type
It is micro-led.
Second aspect, the embodiment of the present invention additionally provide a kind of preparation method of display device, and the preparation method includes：
One display panel is provided；
One back light unit is provided, the back light unit include it is multiple micro-led, wherein, the multiple miniature hair
Optical diode is passive miniature light emitting diode.
Display device provided in an embodiment of the present invention, including display panel and the backlight of multiple micro-led formation
Unit, because micro-led size only has micron level, for the other pel spacing of micro scale very
It is small, therefore, using micro-led as back light unit, when back light unit is bonded with display panel contraposition, it can reduce
Requirement to Anawgy accuracy；Also, in back light unit it is multiple it is micro-led be passive miniature light emitting diode, not only
Micro-led type of drive is simple, it can also be ensured that micro-led thickness is smaller, solves prior art
Back light unit thickness is thicker in the display devices such as middle liquid crystal display, requires the problem of higher to back light unit Anawgy accuracy.
Brief description of the drawings
Fig. 1 is a kind of overlooking the structure diagram of display device provided in an embodiment of the present invention；
Fig. 2 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Fig. 3 is cross-sectional view of the display device shown in Fig. 2 along hatching A-A ' directions；
Fig. 4 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Fig. 5 is cross-sectional view of the display device shown in Fig. 4 along hatching B-B ' directions；
Fig. 6 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Fig. 7 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Fig. 8 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Fig. 9 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Figure 10 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Figure 11 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Figure 12 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention；
Figure 13 is micro-led structural representation provided in an embodiment of the present invention；
Figure 14 is a kind of preparation method schematic flow sheet of display device provided in an embodiment of the present invention；
Figure 15-Figure 21 is provided in an embodiment of the present invention prepares multiple miniature light in the side away from display panel light extraction
The cross-sectional view of each flow of diode.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is it is understood that described herein
Specific embodiment be used only for explaining the present invention, rather than limitation of the invention.It also should be noted that for the ease of
Describe, part related to the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
The embodiment of the present invention provides a kind of display device, including display panel and back light unit, the back light unit bag
Include it is multiple micro-led, wherein, it is the multiple it is micro-led be passive miniature light emitting diode.The present invention
The technical scheme of embodiment, by using backlight list of the back light unit of multiple micro-led formation as display panel
Member, because micro-led size only has micron level, relative between the pixel in the other display panel of micro scale
It is very small away from for, therefore, using micro-led as back light unit, it is bonded in back light unit with display panel contraposition
When, Anawgy accuracy when display panel is bonded with back light unit contraposition can be reduced；It is also, multiple miniature luminous in back light unit
Diode is passive miniature light emitting diode, drive it is micro-led carry out luminous when only need to miniature luminous two
The electrode of pole pipe provides corresponding electric potential signal, and not only micro-led type of drive is simple, it can also be ensured that
Micro-led thickness is smaller, solve in the prior art in the display device such as liquid crystal display back light unit thickness it is thicker,
Higher technical problem is required to back light unit Anawgy accuracy.
Above is the core concept of the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, to the embodiment of the present invention
In technical scheme be clearly and completely described.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Under the premise of making creative work, the every other embodiment that is obtained belongs to the scope of protection of the invention.
Fig. 1 is a kind of top view of display device provided in an embodiment of the present invention, and with reference to figure 1, the display device is specifically wrapped
Include：
Display panel 100 and back light unit 200, back light unit 200 include multiple micro-led 210；Wherein,
Multiple micro-led 210 be passive miniature light emitting diode.
Wherein, back light unit 200 is arranged at side of the display panel 100 away from light extraction, including multiple miniature light-emitting diodes
Pipe 210, and multiple micro-led 210 be passive miniature light emitting diode, with reference to figure 1, multiple passive miniature hairs
Optical diode is arranged in array.It is understood that passive miniature light emitting diode is different from active miniature light-emitting diodes
Pipe, passive miniature light emitting diode only need to input corresponding current potential on its cathode electrode and anode electrode in luminescence process
Voltage signal, it is simple without using the drive circuit including thin film transistor (TFT) etc, type of drive.
It is non-for the other pel spacing of micro scale because micro-led size only has micron level
It is often small, therefore, using micro-led as back light unit, when back light unit is bonded with display panel contraposition, it can drop
The low requirement to Anawgy accuracy；Also, in back light unit it is multiple it is micro-led be passive miniature light emitting diode, no
Only micro-led type of drive is simple, it can also be ensured that micro-led thickness is smaller, solves existing skill
Back light unit thickness is thicker in the display device such as liquid crystal display in art, requires the problem of higher to back light unit Anawgy accuracy.
With continued reference to Fig. 1, optionally, display panel 100 can include：Underlay substrate 110；Formed in underlay substrate 110
On multiple pixel cells 120；Upright projection covering of at least part pixel cell 120 on underlay substrate 110 is miniature luminous
Upright projection of the diode 210 on underlay substrate 110.It should be noted that Fig. 1 only with all pixels unit 120 in substrate
Upright projection on substrate 110 is entered in case of covering micro-led 210 upright projection on underlay substrate 110
Row exemplary illustration.
As shown in figure 1, light source of the back light unit 200 that micro-led 210 are formed as pixel cell 120,
Because micro-led 210 size is far smaller than the size of pixel cell 120, therefore, in back light unit 200 and display
During the contraposition fitting of panel 100, it is only necessary to ask upright projection covering miniature luminous two of the pixel cell 120 on underlay substrate 110
Upright projection of the pole pipe 210 on underlay substrate 110, contraposition Anawgy accuracy require low.
Optionally, upright projection covering of at least part pixel cell 120 on underlay substrate 110 is micro-led
210 place's upright projection on underlay substrate 110, it can be understood as the part in pixel cell 120 is on underlay substrate 110
Upright projection covers micro-led 210 upright projection on underlay substrate 110, it is also understood that being partial pixel list
Upright projection of the member 120 on underlay substrate 110 covers micro-led 210 upright projection on underlay substrate 110,
Upright projection of the partial pixel unit 120 on underlay substrate 110 does not cover micro-led 210 in underlay substrate 110
On upright projection.It will be illustrated respectively for both of these case below.
Fig. 2 is the top view of another display device provided in an embodiment of the present invention, and Fig. 3 is display device edge shown in Fig. 2
The cross-sectional view in hatching A-A ' directions, referring to figs. 2 and 3 shown, pixel cell 120 can include viewing area 121
With transmission area 122；Viewing area 121 includes the first pixel electrode 1211, the first public electrode 1212 and connection the first pixel electricity
The first film transistor 1213 of pole 1211；Upright projection of the viewing area 121 on underlay substrate 110 covers miniature light-emitting diodes
Upright projection of the pipe 210 on underlay substrate 110.
Exemplary, display device provided in an embodiment of the present invention can be liquid crystal display device, the liquid crystal display dress
Array base palte, color membrane substrates and the liquid crystal layer positioned at the array base palte between the color membrane substrates can be included by putting
(not shown)；Orientation film layer (not shown) is provided with the array base palte and/or the color membrane substrates, it is described to match somebody with somebody
It is used for the initial deflection direction for controlling the liquid crystal layer to film layer.Optionally, above-mentioned liquid crystal layer can be PDLC
(Polymer Dispersed Liquid Crystal；Referred to as：PDLC) layer, polymer dispersed liquid crystal film are a kind of by liquid crystal
Disperse the membrane material of excellent combination property obtained in the polymer in the form of droplet.Wherein, polymer is as membrane material
Liquid crystal droplet provides stable network structure；Liquid crystal molecule possesses very strong optical anisotropy and dielectric anisotropy, because
This, imparts the significant electro-optical characteristic of pdlc film, pdlc film is turned into a kind of new light control film.Liquid crystal layer uses PDLC
Layer without using polaroid, can increase the transmitance of display device.
Optionally, the first pixel cell 1211 in viewing area 121 can be located on array base palte, the first public electrode
1212 can be located on color membrane substrates, and liquid crystal layer is between the first pixel cell 1211 and the first public electrode 1212；Or
First pixel cell 1211 and the first public electrode 1212 are respectively positioned on array base palte.The embodiment of the present invention is to the first pixel electrode
1211 and first public electrode 1212 particular location relation without limit.Optionally, the first public electrode 1212 can be right
The first pixel electrode of polylith 1211 is answered, as shown in Figure 2；One piece of first pixel electrode 1211 can also be only corresponded to, the present invention is implemented
Example is to this equally without limiting.It is understood that because the viewing area 121 of pixel cell 120 includes the first pixel electrode
1211st, the first film transistor 1213 of the first pixel electrode 1211 of the first public electrode 1212 and connection, corresponding viewing area
The liquid crystal layer of 121 parts can be deflected normally under the driving of the voltage of the first pixel electrode 1211 and the first public electrode 1212,
Viewing area 121 can be normally carried out showing, be shown that area 121 covers micro-led 210 can be viewing area 121 just
Often display provides light source.Pixel cell 120 is not provided with electrode film layer and drive circuit through area 122, therefore passes through area 122
Liquid crystal layer keep initial deflection direction in the presence of initial orientation film layer, and through area 122 on underlay substrate 110
Upright projection does not cover micro-led 210 upright projections on underlay substrate 100, thus display panel 100 with
It is transparent through part corresponding to area 122.
In addition, it is necessary to illustrate, in all technical schemes provided by the present invention, pixel electrode, public electrode and lining
Substrate uses transparent material.
By being arranged to include viewing area 121 by pixel cell 120 and passing through area 122, viewing area 121 includes such scheme
First pixel electrode 1211, the first public electrode 1212 and the first film transistor for connecting the first pixel electrode 1211
1213, any film layer is not provided with through area 122, and because micro-led 210 size is much smaller than pixel cell 120
Size, in pixel cell 120, only with 121 corresponding position of luminous zone set micro-led 210 so that display
Viewing area 121 in device can realize display function, can realize transparent functional through area 122, finally realize display device
Transparence Display.
Fig. 4 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention, and Fig. 5 is shown shown in Fig. 4
Cross-sectional view of the showing device along hatching B-B ' directions, with reference to shown in figure 4 and Fig. 5, pixel cell 120 can include aobvious
Show area 121 and pass through area 122；Viewing area 121 can include the second pixel electrode 1231, the second public electrode 1232 and connection
Second thin film transistor (TFT) 1233 of the second pixel electrode 1231；Include the 3rd pixel electrode 1241, the 3rd common electrical through area 122
Pole 1242, and the 3rd pixel electrode 1241 and the second pixel electrode 1231 disconnect and set；Wherein, viewing area 121 is in underlay substrate
Upright projection on 110 covers micro-led 210 upright projection on underlay substrate 110.
Because the viewing area 121 of pixel cell 120 includes the second pixel electrode 1231, the second public electrode 1232 and connects
The second thin film transistor (TFT) 1233 of the second pixel electrode 1231 is connect, the liquid crystal layer of the corresponding part of viewing area 121 is in the second pixel electricity
Can normally it be deflected under the voltage driving of the public electrode 1232 of pole 1231 and second, viewing area 121 can be normally carried out showing, quilt
Micro-led the 210 of the covering of viewing area 121 can normally display provide light source for viewing area 121.Because of pixel cell 120
Only include the 3rd pixel electrode 1241 through area 122, the 3rd public electrode 1242, do not include connecting with the 3rd pixel electrode 1241
The thin film transistor (TFT) connect, and the 3rd pixel electrode 1241 and the second pixel electrode 1231 disconnect and set, therefore through in area 122
Liquid crystal layer keeps initial deflection direction in the presence of initial orientation film layer, and vertical on underlay substrate 110 through area 122
Projection does not cover micro-led 210 upright projections on underlay substrate 110, therefore in display panel 100 with passing through
Part is transparent corresponding to area 122.
By being arranged to include viewing area 121 by pixel cell 120 and passing through area 122, viewing area 121 includes such scheme
Second pixel electrode 1231, the second public electrode 1232 and the second thin film transistor (TFT) for connecting the second pixel electrode 1231
1233, the 3rd pixel electrode 1241 is only included through area 122, the 3rd public electrode 1242, is not included and the 3rd pixel electrode
The thin film transistor (TFT) of 1241 connections, and the 3rd pixel electrode 1241 and the second pixel electrode 1231 disconnect and set, and due to micro-
The size of type light emitting diode 210 is much smaller than the size of pixel cell 120, only right with luminous zone 121 in pixel cell 120
The position answered sets micro-led 210 so that the viewing area 121 in display device can realize display function, pass through
Area 122 can realize transparent functional, finally realize the Transparence Display of display device.
On the basis of such scheme, optionally, as shown in Figure 2 and Figure 4, display panel 100 can also include a plurality of sweep
Line 130 and a plurality of data lines 140 are retouched, multi-strip scanning line 130 and the insulation of a plurality of data lines 140, which intersect, limits multiple pixel cells
120；Multiple viewing areas 121 and multiple areas 122 that pass through arrange along the bearing of trend of scan line 130；And along the side of extension of data wire 140
To viewing area 121 and transmission area 122 are spaced, as shown in Figure 2 and Figure 4.
Optionally, Fig. 6 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention, and Fig. 7 is this
The overlooking the structure diagram for another display device that inventive embodiments provide, as shown in Figure 6 and Figure 7, multiple Hes of viewing area 121
It is multiple to be arranged through area 122 along the bearing of trend of data wire 140；And along the bearing of trend of scan line 130, the He of viewing area 121
It is spaced through area 122.The embodiment of the present invention is in same pixel cell 120, viewing area 121 and the position through area 122
Relation is put without limiting.
Viewing area 121 and transmission area 122 are spaced in pixel cell 120 so that viewing area 121 through area 122 with dividing
Cloth is uniform, and because pixel cell 120 is smaller, spacing between the viewing area 121 of each two pixel cell 120 also very little,
So that display device in display picture, ensures the continuity of display picture；Likewise, the transmission of each two pixel cell 120
The spacing in area 122 is also very small so that display device ensures the continuity of transparent picture when carrying out Transparence Display, realizes aobvious
Showing device it is transparent, finally realize that the homogeneous transparent of whole display device is shown.Further, since pixel cell 120 includes showing
Show area 121 and pass through area 122, through setting thin film transistor (TFT) is not required in area 122, reduce thin film transistor (TFT) in display device
Quantity, make through area's aperture opening ratio it is bigger, improve transmitance, further increase the Transparence Display performance of display device.
Optionally, Fig. 8 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention, with reference to figure 8,
Pixel cell includes the class pixel cell 160 of first kind pixel cell 150 and second.Wherein, first kind pixel cell 150 includes the
Four pixel electrodes 151, the 4th public electrode 152 and the 3rd thin film transistor (TFT) 153 for connecting the 4th pixel electrode 151；Wherein,
Upright projection covering micro-led 210 of the first kind pixel cell 150 on underlay substrate 110 is in underlay substrate 110
On upright projection.Second class pixel cell 160 can include on underlay substrate 110 the transparent pixel electrode that sets and transparent
Public electrode, as shown in Figure 8；Any electrode film layer (not shown) can not also be included on underlay substrate 110.
First kind pixel cell 150 includes the 4th pixel of the 4th pixel electrode 151, the 4th public electrode 152 and connection
3rd thin film transistor (TFT) 153 of electrode 151, the liquid crystal layer of the corresponding part of first kind pixel cell 150 is in the 4th pixel electrode 151
Can normally being deflected with the voltage driving of the 4th public electrode 152, first kind pixel cell 150 can be normally carried out showing,
Micro-led 210 light sent covered by first kind pixel cell 150 can be that first kind pixel cell 150 is normal
Display provides light source.Second class pixel cell 160 is not provided with any electrode film layer, or only sets electrode film layer to be not provided with driving
Circuit, therefore liquid crystal layer corresponding to the second class pixel cell 160 keeps initial deflection direction in the presence of initial orientation film layer,
And second upright projection of the class pixel cell 160 on underlay substrate do not cover micro-led 210 in underlay substrate 100
On upright projection when, therefore be transparent in the part corresponding with the second class pixel cell 160 of display panel 100.
Optionally, first kind pixel cell 150 can include the first sub-pixel unit 1501, the second sub-pixel unit
1502nd, the 3rd sub-pixel unit 1503, wherein, the first sub-pixel unit 1501, the second sub-pixel unit 1502, the 3rd sub-pixel
The class pixel cell 160 of unit 1503 and second can be in that the column matrix of two row two arranges, as shown in Figure 8；Optionally, the first sub-pixel
Unit 1501, the second sub-pixel unit 1502, the 3rd sub-pixel unit 1503 and the second class pixel cell 160 can also be in a line
Four column matrix arrange, as shown in figure 9, the embodiment of the present invention is to the first sub-pixel unit 1501, the second sub-pixel unit 1502, the
Three sub-pixel units 1503 and 160 specific Rankine-Hugoniot relations of the second class pixel cell are without limiting.
It is understood that liquid crystal display device generally comprises emitting red light unit, green emitting unit in the prior art
With blue-light-emitting unit, the light that back light unit is sent in the prior art is usually white light, passes through the color film in liquid crystal display device
The light color for setting color blocking layer to ensure that different luminescence units are sent on substrate is different.In the embodiment of the present invention, due to each miniature
The independent backlight as pixel cell of light emitting diode, therefore, can by it is comprehensive set it is micro-led luminous
Color and color blocking layer realize the different technique effect of the light color that different luminescence units are sent.To specifically it illustrate below.
Optionally, Figure 10 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention, such as Figure 10
Shown, micro-led 210 can include miniature red diodes 211, miniature green diode 212 and miniature blue light two
Pole pipe 213；Wherein, at least part pixel cell 120 the upright projection of underlay substrate 110 cover miniature red diodes 211,
The upright projection of miniature green diode 212 and miniature blue light diode 213 on underlay substrate 110.Figure 10 is only with pixel list
Upright projection of the viewing area 121 on underlay substrate 110 in member 120 is covered each by miniature red diodes 211, miniature green glow
Diode 212 and miniature blue light diode 213 illustrate exemplified by the upright projection on underlay substrate 110.As shown in Figure 10,
Miniature red diodes 211, miniature green diode 212 and miniature blue light diode 213 is set independently to be used as pixel list
The light source of viewing area 121 in member 120, due to miniature red diodes 211, miniature green diode 212 and the pole of miniature blue light two
Pipe 213 can individually send feux rouges, green glow and blue light, without setting color blocking layer on color membrane substrates, you can ensure different displays
The light color that area 121 is sent is different, ensures that display device film layer set-up mode is simple.
Optionally, Figure 11 is the overlooking the structure diagram of another display device provided in an embodiment of the present invention, such as Figure 11
Shown, color membrane substrates can also include color blocking layer 410, and color blocking layer includes red color resistance layer 411, green color blocking layer 412 and blueness
Color blocking layer 413；Micro-led 210 include miniature white light-emitting diodes 214；Red color resistance layer 411, green color blocking layer 412
Miniature white light-emitting diodes 214 is covered on underlay substrate 110 with upright projection of the blue color blocking layer 413 on underlay substrate 110
Upright projection.Figure 11 it is merely exemplary depict color blocking layer 410, it is and only vertical on underlay substrate 110 with color blocking layer 410
It is illustrative exemplified by upright projection of the viewing area 121 on underlay substrate 110 in projection covering pixel cell 120.
Figure as indicated at 11, each miniature independent backlight as viewing area 121 of white light-emitting diodes 214, coordinates the color on color membrane substrates
Resistance layer 410, realize the different technique effect of the light color that different viewing areas 121 are sent.
It should be noted that red color resistance layer 411, green color blocking layer 412, blue color blocking layer 413 is on color membrane substrates
Arrangement mode is not limited to Figure 11 mode, and those skilled in the art can be configured according to being actually needed.
Figure 12 is a kind of overlooking the structure diagram of another display device provided in an embodiment of the present invention.With reference to figure 12, color film
Substrate includes color blocking layer 410, and color blocking layer 410 includes red color resistance layer 411, green color blocking layer 412 and blue color blocking layer 413；It is micro-
Type light emitting diode 210 includes miniature red diodes 211, miniature green diode 212 and miniature blue light diode 213；It is red
Upright projection of the color color blocking layer 411 on underlay substrate 110 covers miniature red diodes 211 hanging down on underlay substrate 110
Shadow is delivered directly, upright projection of the green color blocking layer 412 on underlay substrate 110 covers miniature green diode 212 in underlay substrate
Upright projection on 110, upright projection of the blue color blocking layer 413 on underlay substrate 110 cover miniature blue light-emitting diode
213 upright projection on underlay substrate 110.Scheme as shown in 12, not only each miniature red diodes 211, miniature green glow two
Pole pipe 212 and the independent backlight as viewing area 121 of miniature blue light diode 213, while coordinate the red on color membrane substrates
Color blocking layer 411, green color blocking layer 412 and blue color blocking layer 413, it is further ensured that light color that different viewing areas 121 are sent not
Together.
Figure 13 is micro-led structural representation provided in an embodiment of the present invention.It is optionally, micro- with reference to figure 13
Type light emitting diode 210 includes stacking gradually the first drive electrode layer 215 of setting, the driving electricity of light emitting functional layer 216 and second
Pole layer 217.
Multiple micro-led 210 the first drive electrode layer 215 is all connected with the first power supply signal, multiple miniature hairs
Second drive electrode layer 217 of optical diode 210 is all connected with the second drive signal.For example, the first drive signal can be positive
Voltage signal, the second drive signal can be negative drive signals, or the second driving electrodes ground connection, drive light emitting functional layer
216 is luminous.
Optionally, micro-led 210 also include positioned at micro-led 210 side reflecting layer 218, instead
Layer 218 is penetrated to be used to avoid micro-led 210 light sent from being emitted from side.
Because there is reflecting layer encirclement in micro-led outside, it can ensure that light-ray condensing direct projection enters pixel cell 120
In, ensure that colour contamination does not occur for two neighboring pixel cell 120.
The embodiment of the present invention also provides a kind of preparation method of display device, and this method as shown in figure 14 includes：
S110, provide a display panel.
S120, provide a back light unit, the back light unit include it is multiple micro-led, wherein, it is multiple miniature
Light emitting diode is passive miniature light emitting diode.
The preparation method of display device provided in an embodiment of the present invention, included by offer multiple micro-led
Back light unit, because micro-led size only has micron level, for the other pel spacing of micro scale
It is very small, therefore,, can be with when back light unit is bonded with display panel contraposition using micro-led as back light unit
Reduce the requirement to Anawgy accuracy；Also, in back light unit it is multiple it is micro-led be passive miniature light emitting diode,
Not only micro-led type of drive is simple, it can also be ensured that micro-led thickness is smaller, solves existing
Back light unit thickness is thicker in the display device such as liquid crystal display in technology, requires higher to back light unit Anawgy accuracy asks
Topic.
Optionally, there is provided a display panel, can include：
One underlay substrate is provided；
Multiple pixel cells are prepared on underlay substrate；
There is provided a back light unit, the back light unit includes multiple micro-led, can include：
Prepared in the side away from display panel light extraction multiple micro-led, at least part pixel cell is in substrate
Upright projection on substrate covers the micro-led upright projection on underlay substrate.
Because micro-led size is far smaller than the size of pixel cell, therefore, in back light unit and display
Panel alignment be bonded when, it is only necessary to ask can with upright projection of the pixel cell on underlay substrate cover it is micro-led
Upright projection on underlay substrate, contraposition Anawgy accuracy require low.
Optionally, is prepared in the side away from display panel light extraction it is multiple micro-led, can be including existing successively
Side away from display panel light extraction prepares the first driving electrodes；Hair is prepared in side of first driving electrodes away from display panel
Light functional layer；The second driving electrodes are prepared in the side of micro-led remote first driving electrodes；Wherein first driving
Electrode, light emitting functional layer and the second driving electrodes form described micro-led, the first driving electrodes and the second driving electricity
Pole is used to drive the light emitting functional layer to light.
Optionally, is prepared in the side away from display panel light extraction it is multiple micro-led, can also be including successively
The first driving electrodes are prepared in the side away from display panel light extraction；Multiple light emitting functional layers are prepared on carrying substrate；Utilize
Transfer head array picks up multiple light emitting functional layers from carrying substrate；Multiple light emitting functional layers are placed on the first driving electrodes
On；Multiple light emitting functional layers are discharged from transfer head array；Second is prepared in side of the light emitting functional layer away from the first driving electrodes
Driving electrodes；First driving electrodes, light emitting functional layer and the second driving electrodes form described micro-led, the first driving
Electrode and second driving electrodes are used to drive light emitting functional layer to light.
Specifically, Figure 15-Figure 21 be it is provided in an embodiment of the present invention prepared in the side away from display panel light extraction it is multiple
The cross-sectional view of micro-led each flow, with reference to figure 15- Figure 21, the preparation method specifically includes：
As shown in figure 15, the first driving electrodes 215 are prepared in the side away from the light extraction of display panel 100；
As shown in figure 16, multiple light emitting functional layers 216 are prepared on carrying substrate 310；
As shown in Figure 17 and Figure 18, using shift head array 320 from carrying substrate 310 on pick up multiple light emitting functional layers
216；
As shown in figure 19, multiple light emitting functional layers 216 are placed in the first driving electrodes 215；
As shown in figure 20, multiple light emitting functional layers 216 are discharged from transfer head array 320；
As shown in figure 21, the second driving electrodes are prepared in side of the light emitting functional layer 216 away from the first driving electrodes 215
217；
First driving electrodes 215, the driving electrodes 217 of light emitting functional layer 216 and second form micro-led 210,
First driving electrodes 215 and the second driving electrodes 217 are used to drive light emitting functional layer 216 luminous.
By using the micro-led preparation method as shown in Figure 15-Figure 21 so that micro-led
Side of the display panel away from exiting surface is prepared into by the way of transhipment, reduces the thickness of display device, also, obtain
Micro-led dependable performance.
Optionally, in the preparation method of display device provided in an embodiment of the present invention, there is provided a display panel, can wrap
Include：
One underlay substrate is provided；
Multiple pixel cells are prepared on underlay substrate；
There is provided a back light unit, the back light unit includes multiple micro-led, can include：
A micro-led array is provided, micro-led array includes multiple micro-led；
The light emission side of micro-led array is carried out into contraposition with side of the display panel away from light extraction to be bonded, so that
At least part pixel cell covers micro-led, miniature hair in micro-led upright projection in the plane
Optical diode is used to provide light source for the pixel cell., directly will be miniature luminous using the preparation method of above-mentioned display device
Diode array carries out contraposition with side of the display panel away from light extraction and is bonded, because micro-led size only has micron
Rank, it is very small for the other pel spacing of micro scale, therefore, by micro-led array and display surface
During plate contraposition fitting, Anawgy accuracy requires relatively low.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment here, can carry out various significantly change, again for a person skilled in the art
Adjustment and replacement are without departing from protection scope of the present invention.Therefore, although the present invention has been carried out by above example compared with
For detailed description, but the present invention is not limited only to above example, without departing from the inventive concept, can be with
Including other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (20)
1. a kind of display device, it is characterised in that including display panel and back light unit, the back light unit includes multiple micro-
Type light emitting diode；Wherein, it is the multiple it is micro-led be passive miniature light emitting diode.
2. display device according to claim 1, it is characterised in that the display panel includes：
Underlay substrate；
Form multiple pixel cells on the underlay substrate；
Upright projection covering of at least partly described pixel cell on the underlay substrate is described micro-led in institute
State the upright projection on underlay substrate.
3. display device according to claim 2, it is characterised in that the pixel cell includes viewing area and through area；
The viewing area includes the first film of the first pixel electrode, the first public electrode and connection first pixel electrode
Transistor；
Upright projection covering of the viewing area on the underlay substrate is described micro-led in the underlay substrate
On upright projection.
4. display device according to claim 2, it is characterised in that the pixel cell includes viewing area and through area；
The viewing area includes the second film of the second pixel electrode, the second public electrode and connection second pixel electrode
Transistor；
It is described to include the 3rd pixel electrode, the 3rd public electrode, and the 3rd pixel electrode and second pixel through area
Electrode, which disconnects, to be set；
Wherein, upright projection covering of the viewing area on the underlay substrate is described micro-led in the substrate
Upright projection on substrate.
5. display device according to claim 2, it is characterised in that the pixel cell include first kind pixel cell and
Second class pixel cell；
Wherein, the first kind pixel cell includes the 4th pixel electrode, the 4th public electrode and connection the 4th pixel
3rd thin film transistor (TFT) of electrode；
Wherein, the first kind pixel cell on the underlay substrate upright projection covering it is described it is micro-led
Upright projection on the underlay substrate.
6. according to the display device described in claim any one of 1-5, it is characterised in that the display device includes array base
Plate, color membrane substrates and the liquid crystal layer between the array base palte and the color membrane substrates；
Orientation film layer is provided with the array base palte and/or the color membrane substrates, the orientation film layer is used to control the liquid
The initial deflection direction of crystal layer.
7. the display device according to claim 3 or 4, it is characterised in that the display panel also includes multi-strip scanning line
And a plurality of data lines, the multi-strip scanning line and a plurality of data lines insulation intersect the multiple pixel cell of restriction；
Multiple viewing areas and multiple areas that pass through arrange along the scan line bearing of trend；And extend along the data wire
Direction, the viewing area and the area that passes through are spaced；
Or multiple viewing areas and multiple areas that pass through arrange along the data wire line bearing of trend；And swept along described
Line bearing of trend is retouched, the viewing area and the area that passes through are spaced.
8. display device according to claim 5, it is characterised in that the first kind pixel cell includes the first sub-pixel
Unit, the second sub-pixel unit and the 3rd sub-pixel unit；
Wherein, first sub-pixel unit, the second sub-pixel unit, the 3rd sub-pixel unit and the second class pixel cell
Arranged in the column matrix of two row two.
9. display device according to claim 2, it is characterised in that described micro-led including miniature feux rouges two
Pole pipe, miniature green diode and miniature blue light diode；
Wherein, at least partly the pixel cell the upright projection of the underlay substrate cover the miniature red diodes,
The upright projection of the miniature green diode and the miniature blue light diode on the underlay substrate.
10. display device according to claim 6, it is characterised in that the color membrane substrates also include color blocking layer, the color
Resistance layer includes red color resistance layer, green color blocking layer and blue color blocking layer；
It is described micro-led including miniature white light-emitting diodes；
The red color resistance layer, the upright projection of the green color blocking layer and the blue color blocking layer on the underlay substrate are covered
Cover upright projection of the miniature white light emitting diode on the underlay substrate.
11. display device according to claim 6, it is characterised in that the color membrane substrates also include color blocking layer, the color
Resistance layer includes red color resistance layer, green color blocking layer and blue color blocking layer；
It is described micro-led including miniature red diodes, miniature green diode and miniature blue light diode；
Upright projection of the red color resistance layer on the underlay substrate covers the miniature red light-emitting diode described
Upright projection on underlay substrate, upright projection of the green color blocking layer on the underlay substrate cover the miniature green glow
Upright projection of the light emitting diode on the underlay substrate, upright projection of the blue color blocking layer on the underlay substrate
Cover upright projection of the miniature blue light-emitting diode on the underlay substrate.
12. display device according to claim 1, it is characterised in that described micro-led including stacking gradually
The first drive electrode layer, light emitting functional layer and the second drive electrode layer set.
13. display device according to claim 12, it is characterised in that multiple first micro-led drives
Moving electrode layer is all connected with the first power supply signal, and multiple second micro-led driving electrodes are all connected with the second driving
Signal.
14. display device according to claim 12, it is characterised in that described micro-led also including being located at institute
State the reflecting layer of micro-led side, the reflecting layer be used to avoiding the micro-led light sent from
Side is emitted.
15. display device according to claim 6, it is characterised in that the liquid crystal layer is polymer dispersed liquid crystal layer.
A kind of 16. preparation method of display device, it is characterised in that including：
One display panel is provided；
One back light unit is provided, the back light unit include it is multiple micro-led, wherein, the multiple miniature luminous two
Pole pipe is passive miniature light emitting diode.
17. preparation method according to claim 16, it is characterised in that a display panel is provided, including：
One underlay substrate is provided；
Multiple pixel cells are prepared on the underlay substrate；
One back light unit is provided, the back light unit include it is multiple micro-led, including：
Is prepared in the side away from the display panel light extraction multiple micro-led, at least part pixel cell exists
Upright projection on underlay substrate covers the micro-led upright projection on the underlay substrate.
18. preparation method according to claim 17, it is characterised in that in the side system away from the display panel light extraction
It is standby multiple micro-led, including：
The first driving electrodes are prepared in the side away from the display panel light extraction；
Light emitting functional layer is prepared in side of first driving electrodes away from the display panel；
The second driving electrodes are prepared in the side of micro-led remote first driving electrodes；
First driving electrodes, the light emitting functional layer and second driving electrodes formed it is described micro-led,
First driving electrodes and second driving electrodes are used to drive the light emitting functional layer to light.
19. preparation method according to claim 17, it is characterised in that in the side system away from the display panel light extraction
It is standby multiple micro-led, including：
The first driving electrodes are prepared in the side away from the display panel light extraction；
Multiple light emitting functional layers are prepared on carrying substrate；
Using head array is shifted multiple light emitting functional layers are picked up from described carry on substrate；
The multiple light emitting functional layer is placed in first driving electrodes；
The multiple light emitting functional layer is discharged from the transfer head array；
The second driving electrodes are prepared in side of the light emitting functional layer away from first driving electrodes；
First driving electrodes, the light emitting functional layer and second driving electrodes formed it is described micro-led,
First driving electrodes and second driving electrodes are used to drive the light emitting functional layer to light.
20. preparation method according to claim 16, it is characterised in that a display panel is provided, including：
One underlay substrate is provided；
Multiple pixel cells are prepared on the underlay substrate；
One back light unit is provided, the back light unit include it is multiple micro-led, including：
A micro-led array is provided, the micro-led array includes multiple micro-led；
The light emission side of the micro-led array is carried out into contraposition with side of the display panel away from light extraction to be bonded,
So that at least partly the pixel cell is described miniature in micro-led the upright projection covering in the plane
Light emitting diode, it is described micro-led for providing light source for the pixel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072094.3A CN107741671B (en) | 2017-11-03 | 2017-11-03 | Display device and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072094.3A CN107741671B (en) | 2017-11-03 | 2017-11-03 | Display device and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107741671A true CN107741671A (en) | 2018-02-27 |
| CN107741671B CN107741671B (en) | 2021-02-26 |
Family
ID=61233998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711072094.3A Active CN107741671B (en) | 2017-11-03 | 2017-11-03 | Display device and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107741671B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887461A (en) * | 2019-03-29 | 2019-06-14 | 京东方科技集团股份有限公司 | A kind of display device and display methods |
| CN110767669A (en) * | 2018-07-25 | 2020-02-07 | 镎创显示科技股份有限公司 | Micro light-emitting diode display panel |
| CN114156306A (en) * | 2021-11-30 | 2022-03-08 | 深圳市华星光电半导体显示技术有限公司 | Display panel manufacturing method, display panel and display device |
| CN115207248A (en) * | 2022-07-15 | 2022-10-18 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200516310A (en) * | 2003-11-06 | 2005-05-16 | Chi Mei Optoelectronics Corp | Liquid crystal display |
| US20120098734A1 (en) * | 2010-10-21 | 2012-04-26 | Seiko Epson Corporation | Light guide plate and virtual image display device equipped with the same |
| CN103439832A (en) * | 2013-08-20 | 2013-12-11 | 京东方科技集团股份有限公司 | Transparent display device |
| CN105929600A (en) * | 2016-06-30 | 2016-09-07 | 京东方科技集团股份有限公司 | Transparent display screen and transparent display device |
| CN107193157A (en) * | 2017-06-08 | 2017-09-22 | 京东方科技集团股份有限公司 | Optics module and the reflection type display device including it |
-
2017
- 2017-11-03 CN CN201711072094.3A patent/CN107741671B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200516310A (en) * | 2003-11-06 | 2005-05-16 | Chi Mei Optoelectronics Corp | Liquid crystal display |
| US20120098734A1 (en) * | 2010-10-21 | 2012-04-26 | Seiko Epson Corporation | Light guide plate and virtual image display device equipped with the same |
| CN103439832A (en) * | 2013-08-20 | 2013-12-11 | 京东方科技集团股份有限公司 | Transparent display device |
| CN105929600A (en) * | 2016-06-30 | 2016-09-07 | 京东方科技集团股份有限公司 | Transparent display screen and transparent display device |
| CN107193157A (en) * | 2017-06-08 | 2017-09-22 | 京东方科技集团股份有限公司 | Optics module and the reflection type display device including it |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767669A (en) * | 2018-07-25 | 2020-02-07 | 镎创显示科技股份有限公司 | Micro light-emitting diode display panel |
| CN109887461A (en) * | 2019-03-29 | 2019-06-14 | 京东方科技集团股份有限公司 | A kind of display device and display methods |
| CN114156306A (en) * | 2021-11-30 | 2022-03-08 | 深圳市华星光电半导体显示技术有限公司 | Display panel manufacturing method, display panel and display device |
| CN115207248A (en) * | 2022-07-15 | 2022-10-18 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN115207248B (en) * | 2022-07-15 | 2024-01-19 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107741671B (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110034132B (en) | A kind of array substrate, display panel and display device | |
| CN109300951A (en) | Display panel and preparation method thereof and electronic equipment | |
| CN105051804B (en) | Use the display device of light emitting semiconductor device | |
| CN109686770A (en) | Display panel and display device | |
| CN107741671A (en) | A kind of display device and preparation method thereof | |
| CN108417172A (en) | Array substrate, display screen and display device | |
| CN103454806B (en) | 3d display device | |
| CN107731101A (en) | Display panel and display device | |
| CN104483781B (en) | A kind of liquid crystal display and preparation method thereof and electronic equipment | |
| CN110164938A (en) | A kind of display panel and display device | |
| CN109216398A (en) | LED display panel and the display for using the LED display panel | |
| CN106024839A (en) | Foldable OLED display | |
| CN107765487A (en) | A kind of display device | |
| CN110061044A (en) | Organic light emitting display panel and display device | |
| CN109870855A (en) | A kind of array substrate, liquid crystal display panel and liquid crystal display device | |
| CN106842731A (en) | A kind of display panel | |
| CN108010945A (en) | Display panel and display device | |
| US11977292B2 (en) | Color filter substrate, display panel, and display device | |
| CN112233611B (en) | Display module, preparation method and control method thereof and electronic equipment | |
| CN109215587A (en) | A kind of display device, driving method and electronic equipment | |
| CN110176478A (en) | Organic LED display device and preparation method thereof | |
| CN107768411A (en) | Display device and preparation method thereof | |
| CN110071150A (en) | OLED display | |
| CN109950289A (en) | Display device | |
| CN205487282U (en) | Display module assembly, display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |