CN104157669B - A kind of organic electroluminescence display panel and its manufacture method, display device - Google Patents
A kind of organic electroluminescence display panel and its manufacture method, display device Download PDFInfo
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- CN104157669B CN104157669B CN201410157392.2A CN201410157392A CN104157669B CN 104157669 B CN104157669 B CN 104157669B CN 201410157392 A CN201410157392 A CN 201410157392A CN 104157669 B CN104157669 B CN 104157669B
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Abstract
The present invention provides a kind of organic electroluminescence display panel, device and manufacture method.The organic electroluminescence display panel includes：Array base palte, with pixel light emission area and pixel separation area, including is arranged on the lower microprism in the pixel light emission area；Cover plate, is oppositely arranged with the array base palte, with transparent area and shading region, including is arranged at the upper microprism of the transparent area, the transparent area correspondence pixel separation area, the shading region correspondence pixel light emission area；Medium, is filled in the space between the array base palte and the cover plate.The organic electroluminescence display panel that the present invention is provided, it is possible to reduce the reflected light of panel front, improves the display effect of organic electroluminescence display panel.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of organic electroluminescence display panel and its manufacture method, bag
Display device containing the organic electroluminescence display panel.
Background technology
OLED (OLED, Organic Light Emitting Display) is that one kind is partly led using organic
Thin film light emitting device that body material is made, with direct voltage drive, OLED Display Techniques and traditional LCD display modes are not
Together, without backlight, using very thin coating of organic material and glass substrate, when have electric current by when, these organic materials
It will light.And OLED display screen can be made lighter and thinner, visible angle is bigger, and can save significantly on electric energy.
Need to set many metal levels in organic electroluminescence display panel, the reflecting power of metal is strong, wherein organic light emission member
The anode and negative electrode of part generally all use reflective or semi reflective material, meanwhile, the area relative with organic illuminating element on cover plate
Domain is open area so that ambient light can enter organic electroluminescence display panel and occur strong reflection, influence organic hair
The display effect of light display panel.At present, the method for a piece of rotatory polarization piece of fitting on cover plate is typically employed in play well
Anti- reaction, but the negative effect brought is：Module luminance-reduction is obvious；To realize module and equal display brightness before paster,
Power consumption accordingly increases；The increase of power consumption can bring the significantly shortening of display life again；The thickness of whole panel is also increased about
160um even more than.
At present, it is lifting OLED display performances, improves brightness, increase service life, people is directed to studying OLED always
The various methods of device efficiency and life-span upgrading., will if any can occur without rotatory polarization piece while playing anti-counteractive technology
Overcome the above to use the defect of rotatory polarization piece, contributed in high brightness, low-power consumption, long-life use demand.
The content of the invention
In view of this, the present invention provides a kind of organic electroluminescence display panel and its manufacture method, display device.
A kind of organic electroluminescence display panel, the organic electroluminescence display panel includes：
Array base palte, with pixel light emission area and pixel separation area, including is arranged on micro- rib under the pixel light emission area
Mirror；
Cover plate, is oppositely arranged with the array base palte, with transparent area and shading region, including is arranged at the printing opacity
The upper microprism in area, the transparent area correspondence pixel separation area, the shading region correspondence pixel light emission area；
Medium, is filled in the space between the array base palte and the cover plate.
A kind of display device, includes described organic electroluminescence display panel.
A kind of manufacture method of organic electroluminescence display panel, it is characterised in that：
Array basal plate is provided, the array base palte has pixel light emission area and pixel separation area, the pixel
Luminous zone is provided with lower microprism；
A cover plate is provided, the cover plate has shading region and transparent area, and the transparent area is at least provided with microprism；
Fit the array base palte and the cover plate are relative in medium atmosphere, or array base palte with it is any in cover plate
On spread medium, then by the array base palte it is relative with the cover plate laminating, during laminating the pixel light emission area with it is described hide
Light area correspondence, the pixel separation area is corresponding with the transparent area.
The organic electroluminescence display panel that the present invention is provided, it is possible to reduce the positive reflected light of organic electroluminescence display panel, changes
The display effect of kind organic electroluminescence display panel, improves the utilization rate of the light of organic illuminating element, shows so as to reduce organic light emission
Show the power consumption of panel, and then the service life of organic illuminating element can be extended.
Brief description of the drawings
Fig. 1 (a) is a kind of schematic top plan view for organic electroluminescence display panel that embodiment one is provided；
Fig. 1 (b) is the schematic top plan view for another organic electroluminescence display panel that embodiment one is provided；
Fig. 1 (c) is the schematic top plan view for another organic electroluminescence display panel that embodiment one is provided；
Fig. 1 (d) is the cross section structure schematic diagram for the organic electroluminescence display panel that embodiment one is provided；
Fig. 2 is a variety of light path schematic diagrams of organic electroluminescence display panel of embodiment one；
Fig. 3 (a) is the organic electroluminescence display panel light path schematic diagram of embodiment one；
Fig. 3 (b) is the section enlarged diagram of lower microprism 114 in Fig. 3 (a)；
Fig. 3 (c) is the section enlarged diagram of upper microprism 124 in Fig. 3 (a)；
Fig. 4 (a) is microprism schematic shapes under tri-prismoid；
Fig. 4 (b) is the arrangement schematic diagram of microprism under tri-prismoid
Fig. 5 (a) is microprism schematic shapes under a kind of rectangular pyramid；
Fig. 5 (b) is a kind of arrangement schematic diagram of microprism under rectangular pyramid
Fig. 6 (a) is microprism schematic shapes under another rectangular pyramid；
Fig. 6 (b) is the arrangement schematic diagram of microprism under another rectangular pyramid
Fig. 7 (a) is microprism schematic shapes under another tri-prismoid；
Fig. 7 (b) is the arrangement schematic diagram of microprism under another tri-prismoid；
Fig. 7 (c) is another arrangement schematic diagram of microprism under another tri-prismoid；
Fig. 8 (a) is the overlooking the structure diagram that embodiment one shows the array base palte in emulation experiment；
Fig. 8 (b) is the overlooking the structure diagram that embodiment one shows emulation experiment cover plate；
Fig. 8 (c) is the cross section structure schematic diagram that embodiment one shows organic electroluminescence display panel in emulation experiment；
Fig. 9 (a) is the light energy angular distribution figure received by the emulation experiment photo-detector of embodiment one；
Fig. 9 (b) is the luminous flux angular distribution figure received by the emulation experiment photo-detector of embodiment one；
Figure 10 is the cross section structure schematic diagram for the organic electroluminescence display panel that embodiment two is provided；
Figure 11 is the cross section structure schematic diagram for the organic electroluminescence display panel that embodiment three is provided；
Figure 12 (a) is the overlooking the structure diagram that embodiment three shows the array base palte in emulation experiment；
Figure 12 (b) is the overlooking the structure diagram that embodiment three shows emulation experiment cover plate；
Figure 12 (c) is the cross section structure schematic diagram that embodiment three shows organic electroluminescence display panel in emulation experiment；
Figure 13 (a) is the light energy angular distribution figure received by the emulation experiment photo-detector of embodiment three；
Figure 13 (b) is the luminous flux angular distribution figure received by the emulation experiment photo-detector of embodiment three；
Figure 14 illustrates for the cross section structure of the organic electroluminescence display panel of the another embodiment of the embodiment of the present invention three
Figure；
Figure 15 is frustum of a pyramid shape schematic diagram；
Figure 16 (a) is the luminous energy angulation received by the emulation experiment photo-detector of the another embodiment of embodiment three
Spend distribution map；
Figure 16 (b) is the luminous flux angle received by the emulation experiment photo-detector of the another embodiment of embodiment three
Spend distribution map；
Figure 17 is the schematic top plan view of the organic electroluminescence display panel of the embodiment of the present invention four；
Figure 18 is the flow chart of the manufacture method of embodiments of the invention organic electroluminescence display panel.
Embodiment
It is as follows especially exemplified by being illustrated appended by specific embodiment and cooperation in order to further appreciate that the technology contents of the present invention,
But the following drawings and embodiment are not limitation of the present invention, there is usual knowledge in any art
Person, without departing from the spirit and scope of the present invention, when can make a little change and retouching, therefore protection scope of the present invention is worked as
It is defined depending on those as defined in claim.
Embodiment one
With reference to Fig. 1 (a) to Fig. 1 (d), Fig. 1 (a) to Fig. 1 (c) is the organic light emitting display face that the embodiment of the present invention one is provided
There is shading region 125 and transparent area 126 on the partial top view of the cover plate side of plate, the cover plate of organic electroluminescence display panel, hide
Light area 125 can be using the RGB Stripe structures as shown in Fig. 1 (a), it would however also be possible to employ the Delta knots as shown in Fig. 1 (b)
Structure, can also be using the product word structure as shown in Fig. 1 (c).
Fig. 1 (d) is the organic electroluminescence display panel AA ' schematic cross-sections that the embodiment of the present invention one is provided, although You Jifa
Light display panel can use different structure, but the structure in AA ' sections is identical.As shown in Fig. 1 (d), the organic light emission shows
Show that panel includes the array base palte and cover plate that are oppositely arranged and the medium 130 being filled between array base palte and cover plate.
The array base palte has multiple spaced pixel light emission areas 115 and pixel separation area 116, the array base
Plate includes substrate 110, is arranged on providing the wiring 111 of signal for organic illuminating element 113, being arranged on pixel on substrate 110
The organic illuminating element 113 of luminous zone 115, the lower microprism 114 being covered on organic illuminating element 113, it is arranged on pixel
The pixel defining layer 112 of spacer region 116.Multiple organic illuminating elements 113 are sequentially arranged in multiple pixel light emission areas of substrate 110
In 115, pixel defining layer 112 is provided between two neighboring organic illuminating element 113, and pixel defining layer 112 is centered around
Around organic illuminating element 113.Multiple lower microprisms 114 are arranged on the organic illuminating element 113 in pixel light emission area 115.
The cover plate is oppositely arranged with the array base palte, with transparent area 126 and shading region 125.Set in shading region 125
Light shield layer 121 is equipped with, passing through for light can be stopped, the light shield layer 121 can be black matrix.Multiple shading regions 125 and battle array
Multiple pixel light emission areas 115 of row substrate are corresponded, and the pixel separation area 116 of transparent area 126 and array base palte is corresponded,
Looked up from the side perpendicular to organic electroluminescence display panel, shading region 125 is overlapping with pixel light emission area 115, it is preferable that shading region
125 is identical with the shapes and sizes in pixel light emission area 115, is looked up from the side perpendicular to organic electroluminescence display panel, shading region
125 are completely superposed just with pixel light emission area 115.It is provided with the transparent area 126 of cover plate on the inside of array base palte micro-
Prism 124.Medium 130 is filled with space between array base palte and cover plate, the medium 130 can be transparent inert gas
Or the material such as drier.
In the prior art because region corresponding with the pixel light emission area of array base palte is full impregnated light on cover plate, due to setting
It is reflective or semi reflective material to put in its anode of the organic light emission original paper in pixel light emission area or negative electrode, therefore from extraneous incident
Light inside to organic electroluminescence display panel can produce reflective phenomenon by the reflection of anode or negative electrode, influence organic light emission
The display effect of display panel.In the organic electroluminescence display panel that the embodiment of the present invention one is provided, the pixel light emission of array base palte
Area 115 is provided with organic illuminating element 113, is shading region 125 with the region on the corresponding cover plate in pixel light emission area 115, blocks
Ambient light, therefore reflective the greatly reducing of causing of anode or negative electrode of organic illuminating element 113；Meanwhile, it is saturating with cover plate
It is the pixel separation area 116 of array base palte that light area 126 is corresponding, and the material in pixel separation area 116 is usually acrylic or tree
Fat material, reflectivity is low, reduces the reflection of light to external world.Therefore the organic electroluminescence display panel that the embodiment of the present invention one is provided
Reflective phenomenon is significantly reduced, the display effect of organic electroluminescence display panel is improved.
The organic electroluminescence display panel that the embodiment of the present invention one is provided is to utilize the lower microprism 114 for being arranged on panel itself
Display is realized with upper microprism 124, when the light that organic illuminating element 113 is sent passes through the surface of pixel light emission area 115
During lower microprism 114, radiation direction deflects so that light can reach the transparent area 126 of cover plate, reaches transparent area 126
Light by upper microprism 124 in cover plate when, can reflect again, levelling light path, enable more light with
The direction of vertical organic electroluminescence display panel is appeared from the transparent area 126 of cover plate.
The operation principle of the organic electroluminescence display panel of the offer of the embodiment of the present invention one is provided below in conjunction with accompanying drawing.Figure
2 be a plurality of light path schematic diagram for the organic electroluminescence display panel that embodiment one is provided, and refer to Fig. 2, organic illuminating element 113 is sent out
The light gone out can be projected from all directions, and light a, b, c, d, e schematically illustrate an organic illuminating element in Fig. 2
The difference of the light of 113 different directions sent moves towards situation.Light a and d reaches lid after the refraction of lower microprism 114
Light shield layer 121 on plate, it is impossible to be transmitted to outside organic electroluminescence display panel.Light b passes through lower microprism 114 and upper microprism
Organic electroluminescence display panel is appeared with tilted direction after 124 refraction.Light c and e pass through lower microprism 114 and upper microprism 124
Refraction after organic electroluminescence display panel is appeared with the direction perpendicular to organic electroluminescence display panel.Light c is first from organic light emission
The left side of the relative light shield layer 121 of part 113 is appeared, and the right side of light e from the relative light shield layer 121 of organic illuminating element 113 is saturating
Go out.
Energy distribution of the light that organic illuminating element 113 is sent in all angles is close to lambertian distribution, that is to say, that
Light intensity on the direction of vertical organic luminous panel is maximum, in addition, user is vertical or near vertical in normal circumstances
Look up and use in the side of organic electroluminescence display panel, if organic illuminating element 113 send it is aobvious perpendicular to organic light emission
Show that the light of panel, still can be with perpendicular to organic luminous panel after the refraction of lower microprism 114 and upper microprism 124
Direction is appeared, then its organic electroluminescence display panel provided can reach preferable display efficiency, therefore may be referred to vertical
Shape and refractive index of lower microprism 114 and upper microprism 124 etc. are selected in the light of organic electroluminescence display panel.
The light perpendicular to organic electroluminescence display panel for sending organic illuminating element 113 passes through the lower He of microprism 114
After the refraction of upper microprism 124, it can be appeared with the direction perpendicular to organic luminous panel, it is necessary to meet following formula (1)：
Wherein, np1For the refractive index of lower microprism 114,
np2For the refractive index of upper microprism 124,
α is the angle of the side that reflects of the lower light of microprism 114 and vertical organic electroluminescence display panel direction,
β is the angle of the side that reflects of the upper light of microprism 124 and vertical organic electroluminescence display panel direction,
D is the point-to-point transmission that reflects in lower microprism 114 and upper microprism 124 of light in vertical organic light emitting display face
Distance on plate direction,
L is the point-to-point transmission that reflects in lower microprism 114 and upper microprism 124 of light in parallel organic light emitting display face
Distance on plate direction.
Formula (1) is specifically described below in conjunction with accompanying drawing.Fig. 3 (a) is the offer of embodiment one perpendicular to organic
The light Z of light emitting display panel light path schematic diagram, Fig. 3 (b) illustrates for the section amplification of the lower microprism 114 in Fig. 3 (a)
Figure, Fig. 3 (c) be Fig. 3 (a) in upper microprism 124 section enlarged diagram.
As shown in Fig. 3 (a), light Z is projected from the side A of lower microprism 114, and from positioned at the lower top of microprism 114 right side
The side B of the upper microprism 124 of side enters upper microprism 124, so that organic electroluminescence display panel is appeared, lower microprism 114
The side B of side A and upper microprism 124 is two relative sides.
As shown in Fig. 3 (b), the side A of lower microprism 114 is α with the angle on vertical organic electroluminescence display panel direction.
As shown in Fig. 3 (c), side B and the angle on vertical panel direction of upper microprism 124 are β.Lower microprism 114 and upper micro- rib
It is n that the refractive index of mirror 124, which is respectively,p1And np2；The refractive index of medium 130 is nm。
Light Z exposes to the side A of lower microprism 114 eye point X first, now, due to the refraction of lower microprism 114
Rate np1With the refractive index n of medium 130mDifference, light Z can be reflected.Normal F1 and side A is vertical at eye point X, i.e. method
Angle between line F1 and side A isAngle i is incidence angle between light Z incident direction and normal F1.Because light Z
The direction propagated in lower microprism 114 is also perpendicular to organic electroluminescence display panel direction, therefore light Z and lower microprism
114 side A angle is also α, then incidence angle
The angle of emergence that light Z projects when entering medium 130 from lower microprism 114 is r, that is, light Z is in medium 130
The direction of propagation and normal F1 between angle, andWherein θ is sides of the light Z after point X refractions
To the angle between vertical organic electroluminescence display panel direction.Specifically, the side A of lower microprism 114 as described above is with hanging down
Angle on straight organic electroluminescence display panel direction is α, then the folder between normal F1 and vertical organic electroluminescence display panel direction
AngleE=r+ θ are had according to triangle exterior angle theorem again simultaneously, thenAnd after reflecting, light
Line Z is transmitted in medium 130 at the side B of supreme microprism 124 incidence point Y.The side A of lower microprism 114 eye point X
With the side B of upper microprism 124 incidence point Y point-to-point transmissions parallel to the distance on organic luminous panel direction be L, perpendicular to
Distance on organic luminous panel direction is d.Formula (2) refer to according to the law of refraction：
I, r etc. are substituted into formula (2) calculating and obtain following equation, formula (3) is seen：
Light Z reaches the side B of upper microprism 124 incidence by medium 130 after the refraction of lower microprism 114
Point Y, is reflected again.Normal F2 and side B is vertical at incidence point Y, i.e. angle between normal F2 and side B is
Angle i ' is incidence angle between the light Z direction of propagation and normal F2, andWherein θ is light Z
The angle between direction and vertical organic electroluminescence display panel direction after eye point X refractions.Specifically, it is upper micro- as described above
The side A of prism 124 is β with the angle on vertical organic electroluminescence display panel direction, then normal F2 and vertical organic light emission are aobvious
Show the angle between panel directionF=i '+θ are had according to triangle exterior angle theorem again simultaneously, then
Light Z from medium 130 enter upper microprism 124 when the angle of emergence be r ', that is, light Z is in upper microprism 124
In the direction of propagation and normal F2 between angle because the direction that light Z is propagated in the upper microprism 124 has been also perpendicular to
Machine light emitting display panel direction, therefore the side B of light Z and upper microprism 124 angle is also β, then
Formula (4) refer to according to the law of refraction：
I ', r ' etc. are substituted into formula (4) calculating and obtain following equation, formula (5) is seen：
N is eliminated by formula (3) and formula (5)mCalculating can obtain formula (1).
It is can be found that during analysis above：
Due to i ＞ r, i.e. light Z, when X points are reflected, incidence angle i is more than angle of emergence r, according to the law of refraction, there is nm＞
np1, i.e. the refractive index n of medium 130mMore than the refractive index n of lower microprism 114p1；
Due to i ' ＜ r ', i.e. light Z, when Y points are reflected, incidence angle i ' is less than angle of emergence r ', according to the law of refraction, has
np2＜ nm, i.e., the refractive index n of upper microprism 124p2Less than the refractive index n of medium 130m。
Thus, the refractive index of selection medium 130 is more than the refractive index of lower microprism 114 and upper microprism 124, can be more
The light on panel direction for effectively allowing organic illuminating element 113 to send appears cover plate transparent area 126 to show.
Further, the d in formula (1) is in the distance on organic luminous panel direction, d between point X and point Y
It is big with the distance between the cover plate and array base palte of organic electroluminescence display panel and upper microprism 114 and lower microprism 124
It is small relevant.L in formula (1) is the distance between point X and point Y on parallel to organic luminous panel direction, L and array base palte
The size of upper organic illuminating element 113 is relevant with the size of transparent area on cover plate 126.
The schematical explanation more than, can be to Refractive Index of Material, the shape of lower microprism 114 and upper microprism 124
And the refractive index of medium 130 accounts for making appropriate selection.Material following to lower microprism 114 and upper microprism 124,
Shape, size, arrangement situation and preparation method are described in more detail.
In the organic luminous panel that the embodiment of the present invention one is provided, lower microprism 114 and upper microprism 124 use transparent
Material, can use organic material, inorganic material or organic-inorganic mixing material etc..As organic material, it can typically make
With resin material, particularly ultraviolet curable resin, electron beam curing resin ionizing radiation curable resin, thermosetting resin,
Thermoplastic resin or the like etc. can.
For the manufacture method of lower microprism 114 and upper microprism 124, photoetching process can be used, or using ultraviolet solid
Change resin micro-contact-printing etc..
For lower microprism 114 and shape, size and the arrangement method of upper microprism 124, without strict restriction, also not
Limit lower microprism 114 whether all identical with upper microprism 124.Several lower microprisms 114 and upper microprism 124 are enumerated below
Shape, the embodiment of size and arrangement method.
Such as the schematic shapes that Fig. 4 (a) is lower microprism 114, the lower microprism 114 is shaped as the triangular prism bodily form,
One side of the lower microprism 114 of the triangular prism bodily form is contacted with organic illuminating element, and a pixel light emission area can set one
The lower microprism 114 of individual or multiple triangular prism bodily forms, in order to more allow the light that organic illuminating element is sent to appear the saturating of cover plate
Light area, the arrangement of lower microprism 114 should be advisable with being covered with whole pixel light emission area, therefore microprism 114 under tri-prismoid
Size can be adjusted according to the size in pixel light emission area and the number of the microprism of a pixel light emission area setting, and Fig. 4 (b) is
One pixel light emission area is provided with the schematic diagram of the lower microprism 114 of 3 triangular prism bodily forms.The lower microprism of the triangular prism bodily form
The size of 114 side angles is determined according to aforementioned formula (1).
The shape of lower microprism 114 can also be the rectangular pyramid bodily form, and such as Fig. 5 (a) is microprism under a kind of rectangular pyramid bodily form
The bottom surface quadrangle of microprism 114 is rectangle, its bottom surface and organic hair under 114 schematic shapes, the rectangular pyramid bodily form
Optical element is contacted, and a pixel light emission area can set one or more lower microprisms 114, and the arrangement of lower microprism 114 is with cloth
Full whole pixel light emission area is advisable, and such as Fig. 5 (b) is that a pixel light emission area is provided with microprism 114 under multiple rectangular pyramid bodily forms
Schematic diagram.
Fig. 6 (a) is micro- under the schematic shapes of microprism 114 under another rectangular pyramid bodily form, the rectangular pyramid bodily form
The bottom surface quadrangle of prism 114 is square, and its bottom surface is contacted with organic illuminating element, and a pixel light emission area can set one
Individual or multiple lower microprisms 114, the arrangement of lower microprism 114 is advisable with being covered with whole pixel light emission area, and such as Fig. 6 (b) is one
Pixel light emission area is provided with the schematic diagram of microprism 114 under multiple rectangular pyramid bodily forms.
In addition, the bottom surface quadrangle of microprism 114 can also be parallelogram or other four sides under the rectangular pyramid bodily form
Shape, but can make it that the process that arrangement method and light of the lower microprism 114 in pixel light emission area are appeared is more complicated.Under rectangular pyramid
The size of the side angle of microprism 114 is determined according to aforementioned formula (1).
Fig. 7 (a) is the schematic shapes of microprism 114, the lower microprism 114 of the triangular prism bodily form under another triangular prism bodily form
A side contacted with organic illuminating element, the shape of lower microprism 114 is asymmetric on vertical panel direction.It is described to have
When the lower microprism 114 of asymmetrically shape is arranged in pixel light emission area, can such as it be schemed by the way of single repeated arrangement
7 (b) is the single repetition arrangement schematic diagram of microprism 114 under another triangular prism bodily form；The side of symmetric arrays can also be used
Formula, along the center line in pixel light emission area 115 to both sides symmetric arrays, such as Fig. 7 (c) is microprism under another triangular prism bodily form
114 symmetry arrangement schematic diagram.
For the upper microprism 124 on cover plate, it can use and the lower corresponding row of identical shape progress of microprism 114
Cloth, it would however also be possible to employ different shapes.
The organic electroluminescence display panel structure to the embodiment of the present invention one has carried out display emulation experiment below.It refer to figure
8 (a), Fig. 8 (b) and Fig. 8 (c), Fig. 8 (a) are the overlooking the structure diagram that embodiment one shows the array base palte in emulation experiment,
Fig. 8 (b) is the overlooking the structure diagram that embodiment one shows emulation experiment cover plate, and Fig. 8 (c) is that the display emulation of embodiment one is real
Test the cross section structure schematic diagram of middle organic electroluminescence display panel.As illustrated, organic electroluminescence display panel in emulation experiment
The shading region 125 of cover plate is product word structure, and array base palte has pixel light emission area 115 and pixel separation area 116, pixel light emission area
115 and the size in pixel separation area 116 be 20mm × 20mm, be provided with each pixel light emission area 115 it is multiple just
The lower microprism 114 of the rectangular pyramid bodily form.Pixel light emission area 116 on array base palte is provided with organic illuminating element 113, emulation
5 organic illuminating elements, the light that each organic illuminating element 113 is sent are had in the organic electroluminescence display panel used in experiment
Energy be 1W, and the light that each organic illuminating element 113 is sent meets lambertian distribution.Cover plate has shading region 125 and printing opacity
Area 126, shading region 125 is corresponding with the pixel light emission area 115 on array base palte, and the light shield layer of shading region 125 uses impermeable
Luminescent material.Transparent area 126 is corresponding with the pixel separation area 116 on array base palte, and multiple positive four are provided with each transparent area 126
The upper microprism 124 of pyramid, size, shape and the refractive index all same of lower microprism 114 and upper microprism 124.Array base
Medium 130 is filled between plate and cover plate, the refractive index of medium 130 is 1.9, the refraction of lower microprism 114 and upper microprism 124
Rate is 1.52, and photo-detector 10 is arranged on the outer surface of cover plate, can receive what is appeared from organic electroluminescence display panel surface
Light.
5 organic illuminating elements, each organic light emission are had in the organic electroluminescence display panel of the emulation experiment of embodiment one
The power of element is 1W, therefore the light energy of the organic luminous panel is altogether 5W, and the light energy that photo-detector 10 is detected is
1.8587W, that is, the light energy of the organic electroluminescence display panel is appeared for 1.8587W, 1.8587W/5W=0.3717, thus
The organic electroluminescence display panel of embodiment one is 37.17% to the utilization rate of light.
Fig. 9 (a) is the light energy angular distribution figure received by the emulation experiment photo-detector of embodiment one, and radial coordinate is
Light energy (W), angular coordinate is angle (°), and from Fig. 9 (a), the light energy that photo-detector 10 is detected largely is distributed in
On 90 ° of directions, that is, on the direction of vertical organic electroluminescence display panel.The light that organic illuminating element 113 is sent in itself meets
Lambertian distribution, the radiation intensity on 90 ° of directions is 1.3W/Sr.Fig. 9 (b) is connect by the emulation experiment photo-detector of embodiment one
Abscissa is angle (°) in the luminous flux angular distribution figure received, figure, and ordinate is radiation intensity (W/Sr), can by Fig. 9 (b)
Know, radiation intensity of the light that photo-detector 10 is detected on 90 ° of directions is 2W/Sr, more than organic illuminating element 113 hair itself
Radiation intensity of the light gone out on 90 ° of directions, illustrates that this structure can allow the light that organic illuminating element 113 is sent saturating by refraction
Go out organic luminous panel, and the light appeared is gathered on the direction of vertical panel.
Embodiment two
With reference to Figure 10, Figure 10 is the schematic cross-section for the organic electroluminescence display panel structure that the embodiment of the present invention two is provided.
As illustrated, the organic electroluminescence display panel include the array base palte that is oppositely arranged and cover plate and be filled in array base palte and
Medium 230 between cover plate.
The array base palte has multiple spaced pixel light emission areas 215 and pixel separation area 216, the array base
Plate include substrate 210, set over the substrate 210 for organic illuminating element 213 provide signal wiring 211, be arranged on pixel
The organic illuminating element 213 of luminous zone 215, the lower microprism 214 being covered on organic illuminating element 113, it is arranged on pixel
The pixel defining layer 212 of spacer region 216.Multiple organic illuminating elements 213 are sequentially arranged in multiple pixel light emission areas of substrate 210
In 215, pixel defining layer 212 is provided between two neighboring organic illuminating element 213, and pixel defining layer 212 is centered around
Around organic illuminating element 213.Multiple lower microprisms 214 are arranged on the organic illuminating element 213 in pixel light emission area 215.
Organic illuminating element 213 includes anode layer 2131, organic light emitting material 2132 and cathode layer 2133, in organic hair
In optical element 213, anode layer 2131 is near the side of substrate 210, using metal material, the effect with reflection light.It is organic
Luminous material layer 2132 is clipped between anode layer 2131 and cathode layer 2133, and cathode layer 2133 uses transparent conductive material, such as oxygen
Change indium tin (ITO) etc..It is patterned when laying cathode layer 2133, pixel separation area is removed in whole or in part
216 cathode layer 2133, the i.e. part of cathode layer 2133 cover or not covered pixel separation area 216.Although cathode layer 2133 is
Transparent material, but it also has certain reflex to light, reduces laying area of the cathode layer 2133 in pixel separation area 216,
Reflex of the pixel separation area 216 to ambient light can be weakened.
Pixel defining layer 212 is covered in wiring 211, because wiring 211 generally uses conductive metal material, thus it is right
The albedo of light is very strong, is covered in using the pixel defining layer 212 of shading and antireflection on wiring 211, can be greatly
Reduce reflection of the array base palte to ambient light.Pixel defining layer 212 can be using black matrix material etc..Pixel defining layer can be with
Sandwich construction is fabricated to, when pixel defining layer has at least two layers of structure, that layer near cover plate can be using anti-
The material of reflection, any one or more layers in described at least two layers can use light screening material.
The cover plate is oppositely arranged with the array base palte, with transparent area 226 and shading region 225.Set in shading region 225
Light shield layer 221 is equipped with, passing through for light can be stopped, the light shield layer 121 can be black matrix.Multiple shading regions 225 and battle array
Multiple pixel light emission areas 215 of row substrate are corresponded, and the pixel separation area 216 of transparent area 226 and array base palte is corresponded.
In the transparent area 226 of cover plate microprism 224 is provided with the inside of array base palte.Space between array base palte and cover plate
In be filled with medium 230, the medium 230 can be the material such as transparent inert gas or drier.
The displaying principle of the embodiment is identical with embodiment one, therefore, to upper microprism, the material of lower microprism, shape,
The solution of the problems such as size, arrangement and preparation method is also identical with embodiment one, here, to displaying principle, upper microprism,
The relevant issues of lower microprism are repeated no more.
Embodiment three
With reference to Figure 11, Figure 11 is the schematic cross-section for the organic electroluminescence display panel structure that the embodiment of the present invention three is provided.
As illustrated, the organic electroluminescence display panel include the array base palte that is oppositely arranged and cover plate and be filled in array base palte and
Medium 330 between cover plate.
The array base palte has multiple spaced pixel light emission areas 315 and pixel separation area 316, the array base
Plate includes substrate 310, is arranged on providing the wiring 311 of signal for organic illuminating element 313, being arranged on pixel on substrate 310
The organic illuminating element 313 of luminous zone 315, the lower microprism 314 being covered on organic illuminating element 313, it is arranged on pixel
The pixel defining layer 312 of spacer region 316.Multiple organic illuminating elements 313 are sequentially arranged in multiple pixel light emission areas of substrate 310
In 315, pixel defining layer 312 is provided between two neighboring organic illuminating element 313, and pixel defining layer 312 is centered around
Around organic illuminating element 313.Multiple lower microprisms 314 are arranged on the organic illuminating element 313 in pixel light emission area 315.
The cover plate is oppositely arranged with the array base palte, with transparent area 326 and shading region 325.Set in shading region 325
Light shield layer 321 is equipped with, passing through for light can be stopped, the light shield layer 321 can be black matrix.Multiple shading regions 325 and battle array
Multiple pixel light emission areas 315 of row substrate are corresponded, and the pixel separation area 316 of transparent area 326 and array base palte is corresponded.
In the transparent area 326 of cover plate microprism 324 is provided with the inside of array base palte.Space between array base palte and cover plate
In be filled with medium 330, the medium 330 can be the material such as transparent inert gas or drier.
Further, the side of light shield layer 321 towards the array base palte of cover plate is provided with reflecting layer 322, reflecting layer 322
Metal material can be used, except being provided with upper microprism 324 at the transparent area 326 of cover plate, the reflecting layer 322 of cover plate is towards battle array
The side of row substrate is also equipped with microprism 324, for reflecting layer 322 towards the side of array base palte upper microprism 324
Shape, size do not have strict restriction, can use and microprism 324 in the identical of transparent area 326 and identical are arranged
Mode.When the illumination that organic illuminating element 313 is sent is mapped to the shading region 325 of cover plate, reflecting layer 322 can reflect light back into picture
Plain luminous zone 315 and be used again, improve light utilization rate.
The organic electroluminescence display panel structure to the embodiment of the present invention three has carried out display emulation experiment below.It refer to figure
12 (a), Figure 12 (b) and Figure 12 (c), Figure 12 (a) are that embodiment three shows that the plan structure of the array base palte in emulation experiment is shown
It is intended to, Figure 12 (b) is the overlooking the structure diagram that embodiment three shows emulation experiment cover plate, Figure 12 (c) is aobvious for embodiment three
Show the cross section structure schematic diagram of organic electroluminescence display panel in emulation experiment.As illustrated, array base palte has pixel light emission area
315 and pixel separation area 316, the size in pixel light emission area 315 and pixel separation area 316 is 20mm × 20mm, every
The lower microprism 314 of multiple square cone shapes is provided with individual pixel light emission area 315.Pixel light emission area on array base palte
316 are provided with the organic electroluminescence display panel used in organic illuminating element 313, emulation experiment and have 5 organic light emission members
Part, the energy for the light that each organic illuminating element 313 is sent is 1W, and the light that each organic illuminating element 313 is sent meets bright
Uncle's distribution.Cover plate has shading region 325 and transparent area 326, and shading region 325 is corresponding with the pixel light emission area 315 on array base palte,
Shading region 325 is provided with light shield layer 321, and the side of light shield layer 321 towards array base palte is provided with reflecting layer 322, transparent area 326
It is corresponding with the pixel separation area 316 on array base palte.The shading region 325 of cover plate and transparent area 326 are towards the side of array base palte
It is provided with the upper microprism 324 of multiple square cones, size, shape and the refraction of lower microprism 314 and upper microprism 324
Rate all same.Medium 330 is filled between array base palte and cover plate, the refractive index of medium 330 is 1.9, lower microprism 314 and upper
The refractive index of microprism 324 is 1.52, and photo-detector 10 is arranged on the outer surface of cover plate, can be received from organic light emitting display
The light that panel surface is appeared.
5 organic illuminating elements, each organic light emission are had in the organic electroluminescence display panel of the emulation experiment of embodiment three
The power of element is 1W, therefore the light energy of the organic luminous panel is altogether 5W, and the light energy that photo-detector 10 is detected is
2.0312W, that is, the light energy of the organic electroluminescence display panel is appeared for 2.0312W, 2.0312W/5W=0.40624, because
And the ground organic electroluminescence display panel of embodiment three is 40.624% to the utilization rate of light.
Figure 13 (a) is the light energy angular distribution figure received by the emulation experiment photo-detector of embodiment three, radial coordinate
For light energy (W), angular coordinate is angle (°), from Figure 13 (a), and the light energy that photo-detector 10 is detected largely is distributed
On 90 ° of directions, that is, on the direction of vertical organic electroluminescence display panel.The light symbol that organic illuminating element 313 is sent in itself
Lambertian distribution is closed, the radiation intensity on 90 ° of directions is 1.3W/Sr.Figure 13 (b) is the emulation experiment photo-detector institute of embodiment three
Abscissa is angle (°) in the luminous flux angular distribution figure received, figure, and ordinate is radiation intensity (W/Sr), by Figure 13 (b)
Understand, radiation intensity of the light that photo-detector 10 is detected on 90 ° of directions is 2.1W/Sr, more than organic illuminating element 313
Radiation intensity of the light that body is sent on 90 ° of directions, illustrates that this structure can allow the light that organic illuminating element 313 is sent to pass through folding
Penetrate and appear organic luminous panel, and the light appeared is gathered on the direction of vertical panel, and under simulated conditions, embodiment three
Organic electroluminescence display panel structure it is higher than the utilization rate of a pair of light energies of embodiment.
In the another embodiment of embodiment three, light shield layer 321 is fabricated to the frustum of a pyramid bodily form, with reference to Figure 14, figure
The schematic cross-section of the 14 organic electroluminescence display panel structures provided for the another embodiment of the embodiment of the present invention three, wherein hiding
The cross sectional shape of photosphere 321 is trapezoidal.Figure 15 is the schematic shapes of light shield layer 321, and the light shield layer 321 is shaped as pyramid
Stage body shape.Light shield layer 321 is bottom surface close to the side of cover plate, and base area is larger, to cover the shading region 325 of cover plate, shading
321 side away from cover plate of layer are top surface, and the top surface area is smaller than the base area, but for top surface size simultaneously
There is no strict restriction, towards the side of array base palte reflecting layer 322 is set in the top surface of light shield layer 321, reflecting layer is towards battle array
The side of row substrate is also equipped with microprism 324, it is preferable that between the reflecting layer 322 of cover plate and upper microprism 324, also
With a planarization layer, planarization layer can improve the uneven of the lid surface that light shield layer 321 and reflecting layer 322 are caused,
Make it is easier to form microprism 324 in face of the side of array base palte in cover plate, and cause the upper microprism 324 formed more
Uniformly.Because light shield layer 321 is the frustum of a pyramid bodily form in present embodiment, the light that edge is blocked is less, can improve organic hair
The light emission rate of light display panel.Display effect to the organic electroluminescence display panel of present embodiment carries out analog simulation, with reality
The emulation mode for applying the first embodiment of example three is identical.
The light energy that photo-detector 10 is detected is 2.3596W, that is, appears the luminous energy of the organic electroluminescence display panel
Measure as 2.3596W, 2.3596W/5W=0.47192, thus the organic light emitting display face of the another embodiment of embodiment three
Plate is 47.192% to the utilization rate of light.
Figure 16 (a) is the luminous energy angulation received by the emulation experiment photo-detector of the another embodiment of embodiment three
Distribution map is spent, radial coordinate is light energy (W), and angular coordinate is angle (°), from Figure 16 (a), what photo-detector 10 was detected
Light energy is largely distributed on 90 ° of directions, that is, on the direction of vertical organic electroluminescence display panel.Organic illuminating element
313 light sent in itself meet lambertian distribution, and the radiation intensity on 90 ° of directions is 1.3W/Sr.Figure 16 (b) is embodiment three
Another embodiment emulation experiment photo-detector received by luminous flux angular distribution figure, abscissa is angle in figure
(°), ordinate is radiation intensity (W/Sr), from Figure 16 (b), spoke of the light that photo-detector 10 is detected on 90 ° of directions
Intensity is penetrated for 2.1W/Sr, radiation intensity of the light sent more than organic illuminating element 313 on 90 ° of directions in itself illustrates that this is tied
Structure can allow the light that organic illuminating element 313 is sent to appear organic luminous panel by refraction, and the light appeared be gathered vertical
Face directly on the direction of plate, and under simulated conditions, the knot of the organic electroluminescence display panel of the another embodiment of embodiment three
Structure is higher to the utilization rate of light energy than the first embodiment of embodiment three.
Example IV
Organic illuminating element in organic electroluminescence display panel provided in an embodiment of the present invention can be using hair colourama
Organic illuminating element, it would however also be possible to employ the organic illuminating element for the coloured light that turns white, example IV provides a kind of using the coloured light that turns white
The organic electroluminescence display panel of organic illuminating element.Example IV provide use turn white coloured light organic illuminating element it is organic
The structure of light emitting display panel is identical with other embodiment, and difference is, when the organic illuminating element using the coloured light that turns white, needs
Color film is set on the cover plate of organic electroluminescence display panel.Figure 17 shows for the vertical view of the organic electroluminescence display panel of example IV
It is intended to, with reference to Figure 17, color film is arranged at transparent area 426 region 426R, 426G, 426B around shading region 425 of cover plate,
Red color film can be set in region 426R, 426G sets green tint film in region, 426B sets blue color film in region, due to
Shading region 425 is light tight, thus color film can also be set in shading region 425, does not interfere with display effect.Its remaining part on cover plate
Part, which includes upper microprism, reflecting layer, should be arranged on close to the side of array base palte on color film, and light shield layer can be arranged on color film
The upper side close to array base palte, can also be arranged on the side away from array base palte on color film.
Embodiment five
The embodiment of the present invention five provides a kind of manufacture method of organic electroluminescence display panel, described organic with reference to Figure 18
The manufacture method of light emitting display panel comprises the following steps：
Step S1：Array basal plate is provided, the array base palte has pixel light emission area and pixel separation area, the pixel
Luminous zone is provided with lower microprism.
Step S2：A cover plate is provided, the cover plate has shading region and transparent area, is at least provided with the transparent area
Microprism.
Step S3：The array base palte and the cover plate are fitted relatively in medium atmosphere, or in array base palte and lid
In plate it is any on spread medium, then by the array base palte it is relative with the cover plate laminating, pixel light emission area during laminating
Corresponding with the shading region, the pixel separation area is corresponding with the transparent area.
Because step S1 and step S2 are two separate steps, therefore it can also first carry out step S2, Ran Houzai
Step S1 is carried out, or step S1 and step S2 is carried out simultaneously.
Specifically, step S1 provides array basal plate and comprised the following steps：
Step S1.1：A first substrate is provided, the first substrate generally selects transparent glass substrate, it would however also be possible to employ tree
Aliphatic radical plate or flexible base board.
Step S1.2：Pixel light emission area and pixel separation area are set on the first substrate, i.e., is divided first substrate
Certain region is used to be subsequently formed different parts.
Step S1.3：Pixel defining layer is formed in the pixel separation area, by forming pixel defining layer simultaneously on substrate
It is patterned, only retains pixel defining layer in pixel separation area.
Pixel defining layer can be using shading and the material of antireflection, such as black matrix material.
Pixel defining layer can also be fabricated to sandwich construction, when pixel defining layer has at least two layers of structure, most lean on
That layer of nearly cover plate can use any one or more layers in the material of antireflection, described at least two layers to use shading
Material.
Step S1.4：Organic illuminating element is formed in the pixel light emission area, anode is formed in pixel light emission area first
Layer, anode layer generally uses metal material, then forms organic luminous layer on the anode layer, is finally formed on organic luminous layer
Cathode layer, cathode layer generally uses transparent conductive material, and such as tin indium oxide (ITO), cathode layer would generally cover pixel light emission
Area and pixel separation area.
Preferably, cathode layer is patterned, the cathode layer in pixel separation area is removed in whole or in part.
Step S1.5：Microprism under being formed in the pixel light emission area, the lower microprism is covered in organic hair
On optical element.Lower microprism uses transparent material, can use organic material, inorganic material or organic-inorganic mixing material
Deng.As organic material, resin material, particularly ultraviolet curable resin, electron beam curing resin ionization can be typically used
Radiation curable resin, thermosetting resin, thermoplastic resin or the like etc., can use photoetching process, or using ultraviolet solid
Change resin micro-contact-printing etc. and form lower microprism.Preferably, lower microprism is covered with whole pixel light emission area.
Specifically comprise the following steps there is provided a cover plate：
Step S2.1：A second substrate is provided, the second substrate generally selects transparent glass substrate, it would however also be possible to employ tree
Aliphatic radical plate or flexible base board.
Step S2.2：Shading region and transparent area are set on the second substrate, i.e., second substrate is divided to certain area
Domain is used to be subsequently formed different parts.
Step S2.3：Light shield layer is formed in the shading region, light shield layer can use black matrix, using photoetching process system
Make.
Preferably, the shape of light shield layer is fabricated to the frustum of a pyramid bodily form, and light shield layer is bottom surface, bottom close to the side of transparent cover plate
Face area is larger, to cover the predetermined shading region of cover plate, and side of the light shield layer away from cover plate is top surface, and the top surface area compares institute
State that base area is small, but do not have strict restriction for the size of top surface.
Step S2.4：Microprism at least is formed in the transparent area of the cover plate, upper microprism uses transparent material, can be with
Use organic material, inorganic material or organic-inorganic mixing material etc..As organic material, resinous wood can be typically used
Material, particularly ultraviolet curable resin, electron beam curing resin ionizing radiation curable resin, thermosetting resin, thermoplastic resin
Fat or the like etc., can use photoetching process, or form upper microprism using ultraviolet-curing resin micro-contact-printing etc.；On
Microprism is preferably covered with whole predetermined transparent area, it is preferable that be respectively formed in the predetermined transparent area of transparent cover plate and shading region micro-
Prism.
Preferably, before step S2.4 sets microprism on the second substrate, it is additionally included in described second
The step of light shield layer on substrate inner surface setting reflecting layer relative with the array base palte, reflecting layer can use metal material
Material.
Claims (24)
1. a kind of organic electroluminescence display panel, the organic electroluminescence display panel includes：
Array base palte, with pixel light emission area and pixel separation area, including is arranged on the lower microprism in the pixel light emission area；
Cover plate, is oppositely arranged with the array base palte, with transparent area and shading region, including is arranged at the transparent area
Upper microprism, the transparent area correspondence pixel separation area, the shading region correspondence pixel light emission area；
Medium, is filled in the space between the array base palte and the cover plate；
The organic electroluminescence display panel meets following formula：
Wherein, np1For the refractive index of the lower microprism,
np2For the refractive index of the upper microprism,
α is the angle of the side that reflects of the lower microprism light and the vertical organic electroluminescence display panel direction,
β is the angle of the side that reflects of the upper microprism light and the vertical organic electroluminescence display panel direction,
D be light the lower microprism and it is described on the point-to-point transmission that reflects of microprism in vertical organic electroluminescence display panel
Distance on direction,
L be light the lower microprism with it is described on the point-to-point transmission that reflects of microprism in parallel organic electroluminescence display panel
Distance on direction.
2. organic electroluminescence display panel according to claim 1, it is characterised in that：The medium is transparent inert gas
Or drier.
3. organic electroluminescence display panel according to claim 1, it is characterised in that：The array base palte includes being arranged on picture
The organic illuminating element of plain luminous zone, the organic illuminating element include set gradually anode layer, organic light emitting material and
Cathode layer, the lower microprism is covered on organic illuminating element.
4. organic electroluminescence display panel according to claim 3, it is characterised in that：The cathode layer of the organic illuminating element
Partly cover or do not cover the pixel separation area of the array base palte.
5. organic electroluminescence display panel according to claim 1, it is characterised in that：The array base palte includes being organic hair
Optical element provides the wiring of signal and is arranged on the pixel defining layer in pixel separation area, and the pixel defining layer is covered in described
There is provided for organic illuminating element on the wiring of signal, and the pixel defining layer is using shading and the material of antireflection.
6. organic electroluminescence display panel according to claim 1, it is characterised in that：The shading region of the cover plate is also equipped with
Upper microprism.
7. organic electroluminescence display panel according to claim 1, it is characterised in that：The shading region of the cover plate is provided with black
Matrix.
8. organic electroluminescence display panel according to claim 7, it is characterised in that：The black matrix is shaped as the frustum of a pyramid
Body.
9. organic electroluminescence display panel according to claim 1, it is characterised in that：The refractive index of the lower microprism is less than
The refractive index of the medium, and refractive index of the refractive index less than the medium of the upper microprism.
10. organic electroluminescence display panel according to claim 1, it is characterised in that：The lower microprism is shaped as three
Prism or rectangular pyramid.
11. organic electroluminescence display panel according to claim 10, it is characterised in that：The lower microprism rectangular pyramid
Bottom surface quadrangle is square or rectangle.
12. organic electroluminescence display panel according to claim 1, it is characterised in that：The upper microprism is shaped as three
Prism or rectangular pyramid.
13. organic electroluminescence display panel according to claim 12, it is characterised in that：The upper microprism rectangular pyramid
Bottom surface quadrangle is square or rectangle.
14. according to any described organic electroluminescence display panels of claim 1-13, it is characterised in that：In the shading of the cover plate
Area is provided with reflecting layer towards the side of the array base palte.
15. a kind of display device, it is characterised in that：The display device includes organic hair as described in claim 1-14 is any
Light display panel.
16. a kind of manufacture method of organic electroluminescence display panel, it is characterised in that：
Array basal plate is provided, the array base palte has pixel light emission area and pixel separation area, and the pixel light emission area is set
There is lower microprism；
A cover plate is provided, the cover plate has shading region and transparent area, and the transparent area is at least provided with microprism；
The array base palte and the cover plate are fitted relatively in medium atmosphere, or any upper berth in array base palte and cover plate
Upper medium, then by array base palte laminating relative with the cover plate, the pixel light emission area and the shading region during laminating
Correspondence, the pixel separation area is corresponding with the transparent area；
The organic electroluminescence display panel meets following formula：
Wherein, np1For the refractive index of the lower microprism,
np2For the refractive index of the upper microprism,
α is the angle of the side that reflects of the lower microprism light and the vertical organic electroluminescence display panel direction,
β is the angle of the side that reflects of the upper microprism light and the vertical organic electroluminescence display panel direction,
D be light the lower microprism and it is described on the point-to-point transmission that reflects of microprism in vertical organic electroluminescence display panel
Distance on direction,
L be light the lower microprism with it is described on the point-to-point transmission that reflects of microprism in parallel organic electroluminescence display panel
Distance on direction.
17. the manufacture method of organic electroluminescence display panel according to claim 16, it is characterised in that：It is described to provide a burst of
Row substrate comprises the following steps,
One first substrate is provided；
Pixel light emission area and pixel separation area are set on the first substrate；
Organic illuminating element is formed in the pixel light emission area；
Microprism under being formed in the pixel light emission area, the lower microprism is covered on the organic illuminating element.
18. the manufacture method of organic electroluminescence display panel according to claim 17, it is characterised in that：It is described in the picture
Organic illuminating element is formed in plain luminous zone to be included, and sequentially forms anode layer, organic light emitting material, cathode layer, and to negative electrode
Pattern layers, remove the cathode layer in the pixel separation area in whole or in part.
19. the manufacture method of organic electroluminescence display panel according to claim 17, it is characterised in that：In first base
Set on plate after pixel light emission area and pixel separation area, be additionally included in the step that pixel defining layer is formed in the pixel separation area
Suddenly, the pixel defining layer is using shading and the material of antireflection.
20. the manufacture method of organic electroluminescence display panel according to claim 17, it is characterised in that：The lower microprism
Formed using photoetching process or ultraviolet-curing resin micro-contact-printing.
21. the manufacture method of organic electroluminescence display panel according to claim 16, it is characterised in that：It is described that a lid is provided
Plate comprises the following steps,
One second substrate is provided；
Shading region and transparent area are set on the second substrate；
Light shield layer is set in the shading region；
Microprism on being set in the transparent area.
22. the manufacture method of organic electroluminescence display panel according to claim 21, it is characterised in that：In the transparent area
In formation while microprism, microprism is also formed in the shading region.
23. the manufacture method of organic electroluminescence display panel according to claim 21, it is characterised in that：In the shading region
After interior setting light shield layer, be additionally included in the light shield layer towards array base palte side set reflecting layer the step of.
24. the manufacture method of organic electroluminescence display panel according to claim 21, it is characterised in that：The upper microprism
Formed using photoetching process or ultraviolet-curing resin micro-contact-printing.
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| CN1561149A (en) * | 2002-10-24 | 2005-01-05 | ���ṫ˾ | Display unit and its manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12022712B2 (en) * | 2019-07-05 | 2024-06-25 | Lg Display Co., Ltd. | Transparent display apparatus having a plurality of dummy patterns |
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| CN104157669A (en) | 2014-11-19 |
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