CN206557511U - A kind of display base plate, display panel and display device - Google Patents
A kind of display base plate, display panel and display device Download PDFInfo
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- CN206557511U CN206557511U CN201720289359.4U CN201720289359U CN206557511U CN 206557511 U CN206557511 U CN 206557511U CN 201720289359 U CN201720289359 U CN 201720289359U CN 206557511 U CN206557511 U CN 206557511U
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Abstract
The utility model provides a kind of display base plate, display panel and display device, and the display base plate includes：Underlay substrate；The a plurality of data lines being formed on underlay substrate and a plurality of grid line, a plurality of data lines and a plurality of grid line intersect, and limit multiple pixel regions；Multiple thin film transistor (TFT)s on underlay substrate are formed at, a thin film transistor (TFT) is provided with each pixel region；Micro- LED array on underlay substrate, micro- LED array includes multiple micro- LED, and one pixel region of each micro- LED correspondences is set；Positioned at light emission side, for the light of micro- LED outgoing to be changed to linear polarized light the polarization conversion layer of micro- LED array.The display base plate that the utility model is provided is by built in backlight, compared with the external display of traditional backlight, each structure such as light guide plate and down polaroid in backlight can be saved, so as to reduce the thickness of display, the lightening of display is advantageously implemented.
Description
Technical field
The utility model is related to display technology field, more particularly to a kind of display base plate, display panel and display device.
Background technology
LCD (Liquid Crystal Display abbreviation, liquid crystal display) main construction is parallel in two panels
Place among glass substrate set on liquid crystal molecule, lower baseplate glass (array base palte) TFT (Thin Film Transistor,
Thin film transistor (TFT)), colored filter is set on upper substrate glass (color membrane substrates), is changed by the signal on TFT and voltage, come
The rotation direction of liquid crystal molecule is controlled, so as to whether reach each pixel polarised light outgoing of control, and display purpose is reached.
With the quality of life more and more higher of people, user is to the frivolous requirement of display terminal also more and more higher.Common
The structure of liquid crystal display mainly includes：Backlight and display panel, wherein, backlight mainly include LED, light guide plate, on
Lower prism film, diffusion barrier, DBEF (brightness enhancement film) etc., the horizontal white light that LED is sent are upwardly propagated by light guide plate, due to leading
Reflection grain size and Density inhomogeneity on tabula rasa are, it is necessary to which diffusion barrier is by outgoing light uniformization, it is to avoid human eye sees light guide plate
On particle.Display panel mainly includes the array base palte and color membrane substrates to box, and is arranged on array base palte and color membrane substrates
Between liquid crystal molecule, wherein be additionally provided with down polaroid on array base palte, upper polaroid be additionally provided with color membrane substrates, these
Structure joint effect the thickness of display.And in the structure of liquid crystal display of the prior art outside backlight and polaroid
Put, cause difficult to realize lightening, be unfavorable for the lightening of liquid crystal display.
Utility model content
The purpose of this utility model is to provide a kind of display base plate, display panel and display device, and it can be by backlight
It is built-in, and down polaroid is saved, it is advantageously implemented the lightening of display.
Technical scheme provided by the utility model is as follows：
A kind of display base plate, including：
Underlay substrate；
The a plurality of data lines being formed on the underlay substrate and a plurality of grid line, a plurality of data lines and a plurality of grid
Line intersects, and limits multiple pixel regions；
Multiple thin film transistor (TFT)s on the underlay substrate are formed at, are provided with each pixel region described in one
Thin film transistor (TFT)；
Micro- LED array on the underlay substrate, micro- LED array includes multiple micro- LED, each described micro-
One pixel region of LED correspondences is set；
And, positioned at the light emission side, linear for the light of micro- LED outgoing to be changed of micro- LED array
The polarization conversion layer of polarised light.
Further, micro- LED array includes the multiple micro- LED luminescence units being arranged in array, each micro- LED
At least three micro- LED that luminescence unit is included in micro- LED described at least three, and each micro- LED luminescence units are sent out respectively
Go out can mixed light into the different colours of white light monochromatic light.
Further, the polarization conversion layer includes the nano metal on each micro- LED light-emitting area surface
Wiregrating.
Further, the display base plate also includes：On the underlay substrate and cover micro- LED array
Flatness layer；Wherein described a plurality of grid line, a plurality of data lines and the thin film transistor (TFT) are both formed on the flatness layer.
Further, micro- LED array also includes the LED electrode cabling being located on the underlay substrate, wherein described
Each micro- LED in micro- LED array is connected with the LED electrode cabling.
Further, each micro- LED luminescence units at least include：Feux rouges micro- LED, Neng Goufa of feux rouges can be sent
Go out the micro- LED of green glow of green glow and the micro- LED of blue light of blue light can be sent.
A kind of display panel, including the first substrate and second substrate being oppositely arranged；And, be arranged on the first substrate and
Liquid crystal layer between the second substrate；The first substrate uses display base plate as described above.
Further, the second substrate is formed with black matrix, the black matrix in the side towards the first substrate
Multiple open cells are limited, and the multiple open cells are corresponded with multiple pixel regions on the first substrate and set
Put.
A kind of display device, including display panel as described above.
Further, the display device also includes：Positioned at the side of the remote first substrate of the second substrate
Polaroid, the printing opacity direction of principal axis of the polaroid is mutually perpendicular to the printing opacity direction of principal axis of the polarization conversion layer.
The beneficial effects of the utility model are as follows：
Display base plate provided by the utility model, by setting micro- LED array on underlay substrate 100, and in micro- LED
The light emission side formation polarization conversion layer of array, to enable micro- LED array to send linearly polarized photon, to substitute in the prior art
External backlight and down polaroid, are realized the purpose built in backlight, compared with the external display of traditional backlight,
The down polaroid that each structure such as light guide plate and display base plate in backlight enter light side in backlight can be saved, so as to
The thickness of display is reduced, the lightening of display is advantageously implemented.
Brief description of the drawings
Fig. 1 represents the section structure schematic diagram of the display base plate provided in the utility model embodiment；
Fig. 2 represents the section structure schematic diagram of the display device provided in the utility model embodiment；
Fig. 3 represents the planar structure schematic diagram of the display base plate provided in the utility model embodiment；
Fig. 4 represents the planar structure schematic diagram of a pixel region of the display base plate provided in the utility model embodiment；
Fig. 5 represents in Fig. 4 A-A to sectional view.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
The accompanying drawing of type embodiment, the technical scheme to the utility model embodiment is clearly and completely described.Obviously, it is described
Embodiment is a part of embodiment of the present utility model, rather than whole embodiments.Based on described of the present utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained belongs to the scope of the utility model protection.
It is external for the backlight of liquid crystal display in the prior art, it is unfavorable for the technical problem of lightening design, this reality
A kind of display base plate, display panel and display device are provided with new, can be by built in backlight, and down polaroid is saved, have
It is lightening beneficial to display is realized.
As shown in figures 1 and 3, display base plate provided by the utility model includes：
Underlay substrate 100；
The a plurality of data lines 200 and a plurality of grid line 300 being formed on the underlay substrate 100, a plurality of data lines 200
Intersected with a plurality of grid line 300, and limit multiple pixel regions；
Multiple thin film transistor (TFT)s 400 on the underlay substrate 100 are formed at, one is provided with each pixel region
The individual thin film transistor (TFT) 400；
Micro- LED array on the underlay substrate 100, micro- LED array includes multiple micro- LED 500, each
Described one pixel region of the correspondences of micro- LED 500 is set；
And, light emission side positioned at micro- LED array, for the light of micro- outgoing of LED 500 to be converted into line
The polarization conversion layer of property polarised light.
Display base plate provided by the utility model, by setting micro- LED array on underlay substrate 100, and in micro- LED
The light emission side formation polarization conversion layer of array, to enable micro- LED array to send linearly polarized photon, to substitute in the prior art
External backlight and down polaroid, are realized the purpose built in backlight, compared with the external display of traditional backlight,
The down polaroid that each structure such as light guide plate and display base plate in backlight enter light side in backlight can be saved, so as to
The thickness of display is reduced, the lightening of display is realized.
Wherein it should be noted that display base plate provided by the utility model can be the array base of LCDs
Plate, can also be applied to the display base plate in other displays.
It should also be noted that, about 100-500 microns of traditional LED chip thickness, size is 100-1000 microns, tradition
LED thickness is big, it is difficult to accomplish on array base palte；And micro- thickness of LED 500 only has 5 microns, LED electrode track thickness is
0.2 microns, can be produced on display base plate, realize built in backlight, and by the pel spacing of display screen from grade
Micron order is reduced to, so as to show product for the high ppi of liquid crystal display.
In addition, because of the displaying principle of the non-spontaneous light of TFT-LCD in the prior art, causing the penetrance of liquid crystal panel about to exist
Less than 7%, cause LCD light efficiencies very low；And the color saturation of white light LEDs is poor, most LCD products colour gamut is caused there was only 72%
NTSC。
In embodiment provided by the utility model, it is preferred that as shown in figures 1 and 3, micro- LED array includes
The multiple micro- LED luminescence units being arranged in array, each micro- LED luminescence units include micro- LED 500 described at least three,
And at least three micro- LED 500 in each micro- LED luminescence units send respectively can mixed light into white light different colours
Monochromatic light.
Using such scheme, carried out by way of each micro- LED 500 in micro- LED array is designed according to pixel arrangement
Arrangement so that at least three micro- LED 500 in each micro- LED luminescence units send the monochromatic light of different colours respectively, for example：
As shown in figures 1 and 3, each micro- LED luminescence units include sending respectively first micro- LED 500a of red monochromatic light,
Send second micro- LED500b of green monochromatic light and send the 3rd micro- LED500c of blue monochromatic light, and a micro- LED 500
Just a pixel region is set, in this way, the aperture opening ratio of pixel region no longer influences light transmittance, small, thin film transistor (TFT) can be made
Device can be done greatly, be conducive to charging；And the color film on the color membrane substrates of traditional LCDs can be saved, further have
It is lightening beneficial to display screen is realized；In addition, micro- LED luminous half-peak breadth only has about 20nm, color saturation is high, and colour gamut is expected to reach
To more than 120%NTSC.
In addition, in embodiment provided by the utility model, it is preferred that the polarization conversion layer includes being located at each institute
State the nano metal wiregrating 502 on micro- LED 500 light-emitting area surface.
Using such scheme, the polarization conversion layer passes through receiving for being made on each micro- LED 500 light-emitting area surface
Rice wire grating 502 realizes that nano metal wiregrating 502 makes convenient, and thickness of thin, is conducive to the frivolous of display
Change.
Of course, it should be understood that the polarization conversion layer can also be using other structures to realize, as long as can be by
The light that micro- LED 500 is sent is converted to linearly polarized photon outgoing, for example：The polarization conversion layer can also use polarizer
Realize, but compared to nano metal wiregrating, the thickness of display base plate can be larger.
In addition, in embodiment provided by the utility model, it is preferred that as shown in figure 1, micro- LED array is also wrapped
Include each micro- LED 500 and LED in the LED electrode cabling 501 on the underlay substrate 100, micro- LED array
Electrode cabling 501 is connected.Wherein, the LED electrode cabling 501 can be connected with the driving IC of display base plate, to control micro- LED
The luminance of array.
In addition, in embodiment provided by the utility model, it is preferred that as shown in figure 1, the display base plate is also wrapped
Include：On the underlay substrate 100 and cover the flatness layer 600 of micro- LED array；Wherein described a plurality of grid line 300,
The a plurality of data lines 200 and the thin film transistor (TFT) 400 are both formed on the flatness layer 600.Wherein, the film crystal
The grid 401 of pipe 400 is connected with corresponding grid line 300, and the source electrode 402 of the thin film transistor (TFT) connects with corresponding data wire 200
Connect, the drain electrode 403 of the thin film transistor (TFT) is connected with corresponding pixel electrode 404.
Using such scheme, LED electrode cabling 501, micro- LED can will be made on the underlay substrate of the display base plate
After array and nano metal wiregrating 502, then last layer flatness layer 600 is covered, make to form display base again on flatness layer 600
The other structures layer of plate, for example：As shown in Figure 4 and Figure 5, for array base palte, formation LED electrode is walked on underlay substrate
After line 501, micro- LED 500, nano metal wiregrating 502 and flatness layer 600, then by the conventional fabrication processes of array base palte come
Make formed array base palte grid line 300, data wire 200 and thin film transistor (TFT) grid 401, drain electrode 403 and source electrode 402, with
And the other structures such as gate insulator 101 layer, the wherein microns of the thickness of LED electrode cabling 501 about 0.2, micro- thickness of LED 500
Only 5 microns, the microns of other structures thickness degree about 1.8 on flatness layer 600.
Specifically, the preparation method of the display base plate provided in the utility model embodiment is as follows：
First, LED electrode cabling 501 is made on underlay substrate 100；
Then, micro- LED array chip is grown on other backing materials in advance and completed, and made on micro- LED500 surfaces
Nano metal wiregrating 502, then be transferred on the underlay substrate 100 of display base plate, and with the underlay substrate 100 of display base plate
LED electrode cabling 501 is mutually bonded；
Finally, make flatness layer 600 on underlay substrate 100, and formed on flatness layer 600 a plurality of grid line 300,
The a plurality of data lines 200 and the grade structure sheaf of the thin film transistor (TFT) 400.
Wherein, in the above-mentioned methods, micro- LED array chip is grown on other backing materials in advance and formed, including：Will
Micro- LED array chip grows completion on the backing material of the Lattice Matching such as sapphire or silicon wafer, then passes through physics mode
(for example：Laser cutting mode) or chemical mode is (for example：Chemical attack mode), by micro- LED array chip from backing material
Strip down, then be transferred to by active forces such as electrostatic force or Van der Waals fors on the underlay substrate of display base plate；It is described
Nano metal wiregrating 502 can make to be formed by nano-imprint process.
Specifically, in the above-mentioned methods, can when micro- LED array chip is transferred on the underlay substrate 100 of display base plate
So that each micro- LED500 to be bonded in the substrate base of display base plate using STM surface mounting technologies or COB chip on boards encapsulation technology
On plate 100, directly it is connected with the LED electrode cabling 501 on the underlay substrate 100 of array base palte.
In addition, a kind of display panel is additionally provided in embodiment of the present utility model, as shown in Fig. 2 the display panel
Including：The first substrate 10 and second substrate 20 being oppositely arranged；And, it is arranged on the first substrate 10 and the second substrate 20
Between liquid crystal layer 30；Wherein, the first substrate 10 is the display base plate provided in the utility model embodiment.
It should be noted that the display panel that the utility model embodiment is provided can be liquid crystal display substrate, it is described
First substrate can be array base palte, and the second substrate can be color membrane substrates.
Display panel provided by the utility model, by setting micro- LED array on second substrate, and micro- LED gusts
The light emission side formation polarization conversion layer of row, to enable micro- LED array to send linearly polarized photon, to substitute prior art China and foreign countries
Put backlight and down polaroid, realize the purpose built in backlight, can be with compared with the external display of traditional backlight
Each structure such as light guide plate and the down polaroid of display panel in backlight are saved, so as to reduce the thickness of display, is had
Beneficial to realizing the lightening of display.
In preferred embodiment provided by the utility model, as shown in Fig. 2 on the first substrate, micro- LED
Array includes the multiple micro- LED luminescence units being arranged in array, and each micro- LED luminescence units include micro- described at least three
At least three micro- LED in LED, and each micro- LED luminescence units send respectively can mixed light into white light different colours
Monochromatic light；The second substrate is formed with black matrix 21 in the side towards the first substrate, and the black matrix 21 is limited
Go out multiple open cells 22, and the multiple open cells 22 are corresponded with multiple pixel regions on the first substrate 10 and set
Put.
Using such scheme, carried out by way of each micro- LED 500 in micro- LED array is designed according to pixel arrangement
Arrangement so that at least three micro- LED 500 in each micro- LED luminescence units send the monochromatic light of different colours respectively, for example：
As shown in figures 1 and 3, each micro- LED luminescence units include sending respectively first micro- LED 500a of red monochromatic light,
Send second micro- LED500b of green monochromatic light and send the 3rd micro- LED500c of blue monochromatic light, and a micro- LED 500
Just a pixel region is set, in this way, the aperture opening ratio of pixel region no longer influences light transmittance, small, thin film transistor (TFT) can be made
Device can be done greatly, be conducive to charging；And for second substrate, without making color film, that is to say, that eliminate traditional
Color film on the color membrane substrates of LCDs, is further advantageously implemented display screen lightening；In addition, luminous the half of micro- LED
Peak width only has about 20nm, and color saturation is high, and colour gamut is expected to reach more than 120%NTSC.
In addition, being additionally provided in embodiment of the present utility model in a kind of display device, including the utility model embodiment
The display panel provided.
In preferred embodiment provided by the utility model, as shown in Fig. 2 the display device also includes：Positioned at institute
State the polaroid 700 of the side of the remote first substrate of second substrate, the printing opacity direction of principal axis of the polaroid 700 with it is described
The printing opacity direction of principal axis of polarization conversion layer is mutually perpendicular to.
Using such scheme, the wiregrating direction of the nano metal wiregrating 502 of micro- LED 500 light emission side and upper polarizer
Polarization direction is vertical, it is ensured that the linearly polarized photon launched by micro- LED 500 can be passed through after liquid crystal optically-active
Upper polarizer.Wherein upper polaroid can be using traditional polaroid, it would however also be possible to employ nano metal wiregrating 502.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and replacement can also be made, these change
Enter and replace and also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of display base plate, including：Underlay substrate；The a plurality of data lines being formed on the underlay substrate and a plurality of grid line,
The a plurality of data lines and a plurality of grid line intersect, and limit multiple pixel regions；It is formed on the underlay substrate
Multiple thin film transistor (TFT)s, a thin film transistor (TFT) is provided with each pixel region；Characterized in that, described aobvious
Show that substrate also includes：
Micro- LED array on the underlay substrate, micro- LED array includes multiple micro- LED, each described micro- LED couples
A pixel region is answered to set；
And, positioned at micro- LED array it is light emission side, for the light of micro- LED outgoing to be converted into linear polarization
The polarization conversion layer of light.
2. display base plate according to claim 1, it is characterised in that
Micro- LED array includes the multiple micro- LED luminescence units being arranged in array, and each micro- LED luminescence units include
At least three micro- LED in micro- LED described at least three, and each micro- LED luminescence units send respectively can mixed light into
The monochromatic light of the different colours of white light.
3. display base plate according to claim 2, it is characterised in that
The polarization conversion layer includes the nano metal wiregrating on each micro- LED light-emitting area surface.
4. display base plate according to claim 1, it is characterised in that
The display base plate also includes：On the underlay substrate and cover the flatness layer of micro- LED array；Wherein institute
A plurality of grid line, a plurality of data lines and the thin film transistor (TFT) is stated to be both formed on the flatness layer.
5. display base plate according to claim 1, it is characterised in that
Micro- LED array also includes the LED electrode cabling being located on the underlay substrate, wherein in micro- LED array
Each micro- LED is connected with the LED electrode cabling.
6. display base plate according to claim 1, it is characterised in that
Each micro- LED luminescence units at least include：The micro- LED of feux rouges of feux rouges can be sent, the green glow of green glow can be sent
The micro- LED and micro- LED of blue light that blue light can be sent.
7. a kind of display panel, including the first substrate and second substrate being oppositely arranged；And, it is arranged on the first substrate and institute
State the liquid crystal layer between second substrate；Characterized in that, the first substrate is used as described in any one of claim 1 to 6
Display base plate.
8. display panel according to claim 7, it is characterised in that
The second substrate is formed with black matrix in the side towards the first substrate, and the black matrix limits multiple openings
Unit, and the multiple open cells correspond setting with multiple pixel regions on the first substrate.
9. a kind of display device, it is characterised in that including display panel as claimed in claim 8.
10. display device according to claim 9, it is characterised in that
The display device also includes：Polaroid positioned at the side of the remote first substrate of the second substrate；It is described
The printing opacity direction of principal axis of polaroid is mutually perpendicular to the printing opacity direction of principal axis of the polarization conversion layer.
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| CN201720289359.4U CN206557511U (en) | 2017-03-23 | 2017-03-23 | A kind of display base plate, display panel and display device |
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| CN201720289359.4U CN206557511U (en) | 2017-03-23 | 2017-03-23 | A kind of display base plate, display panel and display device |
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| CN109031830A (en) * | 2018-08-27 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of array substrate and preparation method thereof, liquid crystal display panel |
| CN109215587A (en) * | 2018-11-02 | 2019-01-15 | 厦门天马微电子有限公司 | A kind of display device, driving method and electronic equipment |
| CN109254463A (en) * | 2018-11-13 | 2019-01-22 | 惠科股份有限公司 | Liquid crystal display |
| CN109949768A (en) * | 2017-12-20 | 2019-06-28 | 乐金显示有限公司 | Micro- LED display and its driving method |
| CN109991779A (en) * | 2019-04-23 | 2019-07-09 | 京东方科技集团股份有限公司 | Display base plate, display panel and preparation method thereof and display device |
| CN111338127A (en) * | 2020-04-09 | 2020-06-26 | Tcl华星光电技术有限公司 | Display module and display device |
| WO2021031399A1 (en) * | 2019-08-22 | 2021-02-25 | 武汉华星光电技术有限公司 | Display device |
| US10976603B2 (en) | 2018-09-20 | 2021-04-13 | Xiamen Tianma Micro-Electronics Co., Ltd. | Backlight module and display module |
| CN113777823A (en) * | 2020-12-31 | 2021-12-10 | 江苏新云汉光电科技有限公司 | Backlight source for television and processing technology thereof |
| CN114188466A (en) * | 2021-12-03 | 2022-03-15 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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| CN109949768A (en) * | 2017-12-20 | 2019-06-28 | 乐金显示有限公司 | Micro- LED display and its driving method |
| CN109031830A (en) * | 2018-08-27 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of array substrate and preparation method thereof, liquid crystal display panel |
| US11088172B2 (en) | 2018-08-27 | 2021-08-10 | Ordos Yuansheng Optoelectronics Co., Ltd. | Array substrate and manufacturing method thereof, liquid crystal display panel and liquid crystal apparatus |
| US10976603B2 (en) | 2018-09-20 | 2021-04-13 | Xiamen Tianma Micro-Electronics Co., Ltd. | Backlight module and display module |
| CN109215587A (en) * | 2018-11-02 | 2019-01-15 | 厦门天马微电子有限公司 | A kind of display device, driving method and electronic equipment |
| CN109254463A (en) * | 2018-11-13 | 2019-01-22 | 惠科股份有限公司 | Liquid crystal display |
| CN109991779A (en) * | 2019-04-23 | 2019-07-09 | 京东方科技集团股份有限公司 | Display base plate, display panel and preparation method thereof and display device |
| WO2021031399A1 (en) * | 2019-08-22 | 2021-02-25 | 武汉华星光电技术有限公司 | Display device |
| US11693271B2 (en) | 2019-08-22 | 2023-07-04 | Wuhan China Star Optoelectronics Technology Co., Ltd | Display device |
| CN111338127A (en) * | 2020-04-09 | 2020-06-26 | Tcl华星光电技术有限公司 | Display module and display device |
| WO2021203460A1 (en) * | 2020-04-09 | 2021-10-14 | Tcl华星光电技术有限公司 | Display module and display device |
| US11353741B2 (en) | 2020-04-09 | 2022-06-07 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display module and display device |
| CN114371572A (en) * | 2020-10-14 | 2022-04-19 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN113777823A (en) * | 2020-12-31 | 2021-12-10 | 江苏新云汉光电科技有限公司 | Backlight source for television and processing technology thereof |
| CN114188466A (en) * | 2021-12-03 | 2022-03-15 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN114188466B (en) * | 2021-12-03 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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