CN108987435A - Colour filter and organic light-emitting display device comprising it - Google Patents

Colour filter and organic light-emitting display device comprising it Download PDF

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Publication number
CN108987435A
CN108987435A CN201810535454.7A CN201810535454A CN108987435A CN 108987435 A CN108987435 A CN 108987435A CN 201810535454 A CN201810535454 A CN 201810535454A CN 108987435 A CN108987435 A CN 108987435A
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China
Prior art keywords
recess portion
colour filter
layer
display device
coloring layer
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Withdrawn
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CN201810535454.7A
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Chinese (zh)
Inventor
金德谦
安基焕
金起完
金炳仁
白成颢
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Dongwoo Fine Chem Co Ltd
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Dongwoo Fine Chem Co Ltd
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Publication of CN108987435A publication Critical patent/CN108987435A/en
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/351—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels comprising more than three subpixels, e.g. red-green-blue-white [RGBW]

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Optical Filters (AREA)

Abstract

The present invention provides a kind of colour filter and the organic light-emitting display device comprising it; the colour filter includes transparent substrate, black matrix layer, coloring layer and protective layer; each coloring layer has recess portion, which has the radius reduced from the direction that is partially toward transparent substrate farthest apart from substrate.According to such colour filter of the invention, since the coloring layer of each pixel region has recess portion, it is thus possible to improve the color difference in brightness and front and inclined-plane and improve the display quality of organic light-emitting display device.In addition, not having to be formed additional layer as lens jacket, the organic light-emitting display device colour filter with high brightness and front and the low aberration on inclined-plane can be obtained by simple process.

Description

Colour filter and organic light-emitting display device comprising it
Technical field
The present invention relates to organic light-emitting display device colour filter and comprising its organic light-emitting display device, it is specific and Speech is related to the improved organic light-emitting display device colour filter of color difference of brightness and front with inclined-plane and organic hair comprising it Electro-optical display device.
Background technique
Organic light-emitting display device (Organic Light Emitting Diode Display, OLED) includes to have sky Multiple organic illuminating elements of cave injecting electrode and organic luminous layer and electron injection electrode are using based in organic hair The exciton (exciton) that the internal electron of photosphere generates in conjunction with hole generated energy when transitting to ground state from excited state Amount is to issue the self-luminous display device of the phenomenon of the light of specific wavelength.
Therefore, organic light-emitting display device is different from liquid crystal display device, does not need other light source, therefore not only consume Electricity is low, additionally it is possible to reduce thickness, weight.In addition, organic light-emitting display device shows the high quality such as high brightness, response speed spy Property, therefore attract attention as the display device of new generation of mobile electronic apparatus.
In organic light-emitting display device, the pixel (pixel) as basic unit for displaying images is with rectangular row It is listed on substrate.
In organic light-emitting display device express color mode have three color modes, transition regime, colour filter mode these three. Using the white organic light emitting display device of white light source, by foring red, green, blue in each pixel The colour filter of pattern and full-color (full-color) is presented.In three color modes, it is in using the luminescent layer of red, green, blue It is existing full-color, but in order to improve the purity of color, colour filter can be used together.Prepare blue light-emitting layer when transition regime and keeps its luminous One in such a way that photochromic layer obtains red, green.
In organic light-emitting display device, in order to unrelated user the visual field and the color of high quality is presented, need to show height Brightness and front with inclined-plane do not generate color difference.
For this purpose, disclosing a kind of organic light-emitting display device in KR published patent the 10-2015-0019325th, wrap Containing organic light emitting display panel, the high refraction organic film being formed in above-mentioned organic light emitting display panel, it is formed in above-mentioned height Refraction organic film on low refraction organic film, be formed in it is above-mentioned it is low refraction organic film on colour filter and have with it is upper State the light obstructing member of the corresponding opening portion of colour filter, above-mentioned organic hair of the above-mentioned high refraction organic film relative to above-mentioned colour filter Light display panel includes the protrusion of convex, and above-mentioned low refraction organic film includes recess portion corresponding with raised part.
In addition, disclosing a kind of organic light-emitting display device in KR published patent the 10-2014-0135568th, wrap Organic illuminating element containing multiple sub-pixels containing the light for issuing different colors from one another；It is formed in close on organic illuminating element Sealer；Containing being formed on sealing film, be disposed in region corresponding with each sub-pixel and there is towards light direction and out light side To the lens jacket of the lens section on surface heaved of opposite direction；Be formed on lens jacket and be located at it is corresponding with each sub-pixel Region colour filter, and include inhibit external light reflection anti-reflection layer.
But in such conventional art, exist because forming low refraction, high refraction organic film or lens jacket etc. add Layer and the problems such as increase process.
Existing technical literature
Patent document
Patent document 1: KR published patent the 10-2015-0019325th
Patent document 2: KR published patent the 10-2014-0135568th
Summary of the invention
Problems to be solved by the invention
It is proposed, purpose when of the invention in order to solve the problems, such as the organic light-emitting display device of such conventional art It is, provides brightness and front with the improved organic light-emitting display device colour filter of color difference on inclined-plane and comprising the organic of its Luminous display unit.
Another object of the present invention is to provide manufacturing process, simple and brightness and front are improved with the color difference on inclined-plane Organic light-emitting display device colour filter and organic light-emitting display device comprising it.
The method used for solving the problem
In order to solve such purpose, the present invention provides a kind of colour filter, and it includes on transparent substrate, above-mentioned transparent substrate Black matrix layer, the coloring layer and covering above-mentioned coloring layer that are respectively formed at the pixel region defined by above-mentioned black matrix layer Protective layer, each above-mentioned coloring layer have recess portion, and above-mentioned recess portion has following shape: the depth H of the recess portion is less than above-mentioned coloring layer Thickness D, the cross section of above-mentioned recess portion is circle, and the radius of the farthest part of the above-mentioned transparent substrate of distance of above-mentioned recess portion There is maximum radius in all section radius of above-mentioned recess portion.
The above-mentioned transparent substrate of distance that above-mentioned recess portion can have radius from the above-mentioned recess portion of the cross section of the recess portion is farthest Be partially toward above-mentioned transparent substrate direction reduce shape.
The radius R of the cross section of the farthest part of the above-mentioned transparent substrate of the distance of above-mentioned recess portion2It can be above-mentioned coloring layer Width P less than half.
Bottom apart from above-mentioned recess portion is the radius R of the cross section of the above-mentioned recess portion of H/2 height1With above-mentioned R2It can satisfy 0 < R1/R2The condition of < 1 more preferably meets 0.3 < R1/R2The condition of < 0.8.
Above-mentioned R1It can satisfy 0.15≤R with above-mentioned P1The condition of/P≤0.4.
The refractive index of above-mentioned coloring layer can be 0.5~2.5.
The extinction coefficient of above-mentioned coloring layer can be 0~1.8.
The refractive index of above-mentioned protective layer can be 1.47~1.58.
The opposing face in the face of above-mentioned protective layer contacted with above-mentioned coloring layer is flat.
Above-mentioned protective layer can be formed in a manner of being embedded to above-mentioned recess portion.
Another way according to the present invention provides a kind of organic light-emitting display device, and it includes above-mentioned any colors With organic illuminating element panel, which is disposed in the above-mentioned protective layer side of above-mentioned colour filter and includes organic Light-emitting component and driving element for driving above-mentioned organic illuminating element.
Above-mentioned organic illuminating element panel can be the three colour organic luminous component sides using red, green, blue-light source Plate；Use the organic illuminating element panel of red green, blue and white light source；And the organic light emission member using white light source Any one of part panel.
Invention effect
According to such colour filter of the invention, since the coloring layer of each pixel region has recess portion, it is thus possible to improve Brightness and front and the color difference on inclined-plane and the display quality for improving organic light-emitting display device.
In addition, do not have to form as lens jacket additional layer, can be obtained by simple process with high brightness and The organic light-emitting display device colour filter in front and the low aberration on inclined-plane.
Detailed description of the invention
Fig. 1 is the sectional view of the organic light-emitting display device colour filter of one embodiment of the invention.
Fig. 2 is the sectional view of the organic light-emitting display device comprising colour filter of one embodiment of the invention.
Fig. 3 is the coloring layer for showing a pixel of organic light-emitting display device colour filter of one embodiment of the invention Sectional view.
Fig. 4 is formed at the recess portion in the coloring layer of the organic light-emitting display device colour filter of one embodiment of the invention Sectional view.
Fig. 5 a and Fig. 5 b are that resin group used in the formation of coloring layer in measurement the embodiment of the present invention is shown respectively Close the chart of the refractive index of object and the result of extinction coefficient.
Fig. 6 is the photo for measuring the shape of the recess portion formed by the embodiment of the present invention.
Symbol description
110: transparent substrate 120: black matrix
130: coloring layer 140: protective layer
100: colour filter 200: organic illuminating element panel
Specific embodiment
Hereinafter, to organic light-emitting display device colour filter of the invention and including its organic light emitting display referring to attached drawing The preferred embodiment of device is described in detail.It is explained, the attached drawing in this specification is only for illustrating this hair Bright illustration, the present invention are not limited by attached drawing.In addition, a part of constituent element is on attached drawing in order to illustrate upper convenience It is amplified and shows sometimes, or reduce or omit.
Fig. 1 is the sectional view of the organic light-emitting display device colour filter of one embodiment of the invention.
Referring to Fig.1, the organic light-emitting display device of one embodiment of the invention with colour filter 100 have transparent substrate 110, Structure made of black matrix layer 120, coloring layer 130 and protective layer 140 stack gradually.
Transparent substrate 110 can be glass substrate, or when colour filter 100 is the colour filter for flexible display apparatus When, it can be flexible film substrate, especially hyaline membrane.
The film of the transparency, mechanical strength, excellent heat stability can be used in hyaline membrane, as concrete example, can enumerate by The film that following thermoplastic resin is formed: polyethylene terephthalate, polyethylene glycol isophthalate, poly- naphthalenedicarboxylic acid second The polyester based resins such as diol ester, polybutylene terephthalate (PBT)；The cellulose-based tree such as diacetyl cellulose, triacetyl cellulose Rouge；Polycarbonate-based resin；The acrylic resins such as poly- (methyl) methyl acrylate, poly- (methyl) ethyl acrylate；Polyphenyl second The phenylethylene resin series such as alkene, acrylonitritrile-styrene resin；It is polyethylene, polypropylene, poly- with ring system or norbornene structure The polyolefin-based resins such as alkene, ethylene-propylene copolymer；Vinyl chloride-based resin；The amides such as nylon, aromatic polyamide system tree Rouge；Imide series resin；Polyether sulfone system resin；Sulfone system resin；Polyether-ether-ketone system resin；Thio polyphenylene system resin；Ethylene Alcohol system resin；Vinylidene chloride resin；Vinyl butyral system resin；Arylide system resin；Polyformaldehyde system resin；Epoxy It is resin etc., the film formed by the blend of above-mentioned thermoplastic resin also can be used.Furthermore it is also possible to using by (methyl) third The thermosetting resins such as olefin(e) acid system, carbamate system, propenoic methyl carbamate system, epoxy, organic silicon-type or ultraviolet light are solid The film that change type resin is formed.
The thickness of such hyaline membrane can be suitable for determining, it is however generally that, from the workability such as intensity, operability, thin layer Etc. consider, be 1~500 μm of degree, preferably 1~300 μm, more preferably 5~200 μm.
Such hyaline membrane can be suitably containing more than one additive.As additive, for example, can enumerate ultraviolet Light absorbers, antioxidant, lubricant, plasticizer, release agent, anti-coloring agent, fire retardant, antistatic agent, pigment, colorant Deng.Above-mentioned hyaline membrane can be diversified comprising hard conating, anti-reflection layer, barrier layer for gases etc. in the one or both sides of film The structure of functional layer, functional layer are not limited to these layers, can include diversified functional layer depending on the application.
In addition, as needed, hyaline membrane can be subjected to surface treatment.As such surface treatment, can enumerate Chemical treatments such as dry process, the alkali process including saponification process such as gas ions processing, sided corona treatment, primary coat processing etc..
Furthermore, it is possible to have protective film (Protective Film).
Protective film be the film formed by macromolecule resin at least one side include adhesion coating film, or can be poly- third Alkene etc. has the film of tack, can improve for the surface protection of the display device comprising colour filter, process and use.
Black matrix layer 120 plays the effect for obstructing light and preventing colour mixture, can define each pixel region by black matrix layer 120 Domain.In order to which efficient photoresist is every black matrix layer 120 can be formed by the resin combination of black.
Coloring layer 130 has been used to color monitor and the layer of color is presented, in general, being patterned with red (R), blue (B), green (G), and it is formed in the pixel region defined by the black matrix layer 120 as light shield layer.
But coloring layer it is not necessary to comprising whole red, blues, green patterns or must only comprising it is red, The pattern of blue, green, but can be with form and aspect expression way according to display device and only comprising arbitrary one in them The pattern of part form and aspect, or further include the pattern of other form and aspect as white (White) pattern etc..
The coloring layer 130 of red, blue and green by red, blue and green coloring is presented because of colorant respectively Resin combination is formed.Coloring resin combination can be Thermocurable or photo-curable, usually comprising colorant, combination Agent resin, polymerizable compound, polymerization initiator composition.
An embodiment according to the present invention, it is contemplated that as the effect of colorant, constitute the coloring resin of coloring layer 130 The coloring resin combination that refractive index is 0.5~2.5, extinction coefficient is 0~1.8 can be used in composition.
The organic light-emitting display device of one embodiment of the invention in colour filter 100, be formed in each pixel region The center of chromatograph 130 is formed with recess portion.This will be described in detail hereinafter.
The protective layer 140 on 130 top of coloring layer is for protecting coloring layer 130 and by the surface planarisation of colour filter 100 Layer, can be by being formed as the organic layer of Thermocurable or Photocurable resin composition.
As the material of above-mentioned organic layer, macromolecule material can be used.Above-mentioned macromolecule material includes selected from by for example Polyacrylate (polyacrylate), polymethacrylates (polymethacrylate, such as PMMA), polyimides (polyimide), polyamide (polyamide), polyvinyl alcohol (poly vinylalcohol), polyamic acid (polyamic Acid), polyolefin (polyolefin, such as PE, PP), polystyrene (polystyrene), polynorbornene (polynorbornene), phenyl maleimide copolymers (phenylmaleimide copolymer), poly- azobenzene (polyazobenzene), polyphenylene phthalamide (polyphenylenephthalamide), polyester (polyester, Such as PET, PBT), multi arylate (polyarylate), cinnamate (cinnamate) be macromolecule, cumarin It (coumarin) be macromolecule, phthalimidine (phthalimidine) be macromolecule, chalcone (chalcone) is macromolecule And the substance of one or more of molecular group of aromatic series acetylene system high score.
The thickness of protective layer 140 can according to need suitable decision, it is however generally that, it is contemplated that intensity, operability, flatness Deng, can be 0.5~3.5 μm.
The refractive index of protective layer 140 also can according to need suitable decision, it is contemplated that with used in coloring layer 130 The refringence etc. of color resin combination, the refractive index of protective layer 140 can be 1.47~1.58.
According to the present invention, the organic light-emitting display device comprising colour filter as described above is also provided.Fig. 2 is of the invention The sectional view of the organic light-emitting display device comprising colour filter of one embodiment.
As shown in Fig. 2, the organic light-emitting display device of one embodiment of the invention includes such colour filter shown in FIG. 1 100 and organic illuminating element panel 200.
Organic illuminating element panel 200 is mounted on protective layer (Fig. 1: 140) side of colour filter 100.In Fig. 2, it is different from figure 1, the section of colour filter 100 is shown according to the direction of turned upside down after forming colour filter 100.
Organic illuminating element panel 200 is configured to comprising multiple organic illuminating elements (not shown) and for driving these to have Multiple driving elements (not shown) of machine light-emitting component.The detailed composition of organic illuminating element panel 200 does not have in the present invention It is particularly limited to, it can be unlimitedly using diversified structure used in the technical field of organic light-emitting display device At.It is, for example, possible to use the organic illuminating element panel in the way of three colors of red, green, blue luminescent layer, Huo Zheye The organic illuminating element panel using red, green, blue and white light source can be used.Further, it can also use white Colour organic luminous display device organic illuminating element panel.
Next, the structure of the coloring layer for the organic light-emitting display device colour filter of the embodiment of the present invention, ginseng It is described in detail according to Fig. 3 and Fig. 4.
A pixel of the organic light-emitting display device colour filter of one embodiment of the invention is shown respectively in Fig. 3 and Fig. 4 The section of the coloring layer in region and the recess portion being formed in coloring layer.Fig. 3 and Fig. 2 is also illustrated after forming colour filter up and down The longitudinal section in inverted direction, Fig. 4 are also shown and the longitudinal section of Fig. 3 same direction and corresponding cross section.
Firstly, being formed with diameter in coloring layer is 2R referring to Fig. 32And height is the recessed of the shape of the similar circular cone of H Portion.In other words, height H becomes the depth of recess portion.
Height H is less than the thickness D, diameter 2R of coloring layer2Width P with pixel region is identical or less than width P.Change speech It, the width P of pixel region is the distance between the center for the black matrix of pixel two sides for defining pixel region.
Then, referring to Fig. 4, when the cross section of observation downside, the shape of recess portion is by from the transparent base for forming coloring layer Plate (Fig. 1: 110) only the plane of the thickness D far from coloring layer, i.e. from the farthest plane of distance transparent substrate towards transparent substrate The shape for the similar circular cone that the circle that direction radius reduces is constituted.
Specifically, being R only to form radius centered on the position O of the plane of the thickness D far from coloring layer from substrate2's Circle, forming radius centered on the position P of the plane of the half of height H is R1Circle.
Here, R1And R2It can be 0 < R1/R2More specifically < 1 can be 0.3 < R1/R2< 0.8.
In addition, considering from the relationship of the width P with pixel region, R1It can be 0.15≤R1/P≤0.4。
On the other hand, although the section for showing recess portion in Fig. 3 and Fig. 4 becomes larger on the direction towards substrate for its slope Form, but it's not limited to that for the form of recess portion.Specifically, for example, recess portion can be formed as the constant cone of slope The form that state or slope become smaller.
In addition, the form of recess portion is not limited to the form that the section radius of recess portion persistently reduces, for example, can be set to A part of section section radius keeps constant or increases in partial cross section's radius.
According to the present invention, so according in the coloring layer of each pixel region have recess portion by way of form colour filter Device improves the display quality of organic light-emitting display device so as to improve brightness and front and the color difference on inclined-plane.
Hereinafter, more specifically describing the present invention by embodiment and comparative example.It is explained, these embodiments It is merely to illustrate the present invention with comparative example, the scope of the present invention is not limited by them, this is for those skilled in the art For be obvious.
Coloring resin combination is coated with 2.5 μm of thickness in the one side of transparent substrate (soda-lime glass, thickness 0.7mm) Object makes colour filter as the following table 1.Fig. 5 a and Fig. 5 b are that resin group used in the formation of measurement coloring layer is shown respectively Close the chart of the refractive index of object and the result of extinction coefficient.
In the case of comparative example 1, coloring layer is formed in the form of not recess portion, in the case where Examples 1 to 4, point Not with R illustrated in table 11And R2The mode of value forms recess portion.The measurement of recess shapes utilizes Bruker company ContourGT interferometer microscope be measured, Fig. 6 is the photo for showing the example of measured recess shapes.
It indicates that element panel makes organic light emission planar light source device using organic light emission, is put using the light splitting of Topcon company Penetrate luminance meter SR-3AR measurement front face brightness.About the color difference in front and inclined-plane, from the xy coordinate difference on CIE xy chromatic diagram Hue value when angle (θ) is 0 ° (front) and at 30 ° (inclined-plane) is measured, finds out distance, and is worth obtained multiplied by after 100 Value be recorded in table 1.
[table 1]
As known from Table 1, in the case where comparative example 1 of not recess portion, front face brightness is for blue, green, red Respectively 18.8,219.8,89.9, in contrast, in the Examples 1 to 4 for foring recess portion, for blue, green, red Front face brightness be 20 or more, 250 or more, 100 or more, substantially improved.
In addition, as known from Table 1, using the not colour filter of the comparative example 1 of recess portion, for blue, green, The color difference in front and inclined-plane is respectively 0.0301,0.4100,0.0304 for red, relatively large color difference is shown, with this phase Right, in the embodiment of the present invention 1~4, the color difference in front and inclined-plane is respectively 0.0300 for blue, green, red Below, 0.3500 or less, 0.0250 hereinafter, reduced.
As long as those skilled in the art, then it should be understood that by referring to it is described above do not depart from it is of the invention In the range of intrinsic propesties can by it is various it is deformed in the form of realize the present invention.
Therefore, the embodiment expressed is not restrictive viewpoint, should consider according to illustrative viewpoint, the present invention Range be not above-mentioned explanation, but range shown in claims, and being construed that in the model same with it All differences in enclosing are included in the present invention.

Claims (13)

1. a kind of colour filter, it includes:
Transparent substrate,
Black matrix layer on the transparent substrate,
Be respectively formed at the pixel region defined by the black matrix layer coloring layer and
The protective layer of the coloring layer is covered,
Each coloring layer has recess portion,
The recess portion has following shape: the depth H of the recess portion is less than the thickness D of the coloring layer, the cross section of the recess portion For circle, and the radius of the farthest part of transparent substrate described in the distance of the recess portion is in all sections of the recess portion half There is maximum radius in diameter.
2. colour filter according to claim 1, the recess portion has a following shape: the radius of the cross section of the recess portion is from institute The farthest direction for being partially toward the transparent substrate of transparent substrate described in the distance of recess portion is stated to reduce.
3. colour filter according to claim 1, the cross section of the farthest part of transparent substrate described in the distance of the recess portion Radius R2For less than half of the width P of the coloring layer.
4. colour filter according to claim 3, the bottom apart from the recess portion is the cross section of the recess portion of H/2 height Radius R1With the R2Meet 0 < R1/R2The condition of < 1.
5. colour filter according to claim 4, the bottom apart from the recess portion is the cross section of the recess portion of H/2 height Radius R1With the R2Meet 0.3 < R1/R2The condition of < 0.8.
6. colour filter according to claim 4, the R1Meet 0.15≤R with the P1The condition of/P≤0.4.
7. colour filter according to claim 1, the refractive index of the coloring layer is 0.5~2.5.
8. colour filter according to claim 1, the extinction coefficient of the coloring layer is 0~1.8.
9. colour filter according to claim 1, the refractive index of the protective layer is 1.47~1.58.
10. the opposing face of colour filter according to claim 1, the face of the protective layer contacted with the coloring layer is flat Smooth.
11. colour filter according to claim 1, the protective layer is formed in a manner of being embedded to the recess portion.
12. a kind of organic light-emitting display device, it includes the colour filters and organic light emission described in any one of claim 1~11 Element panel, the organic illuminating element panel are disposed in the protective layer side of the colour filter and include organic illuminating element And the driving element for driving the organic illuminating element.
13. organic light-emitting display device according to claim 12, the organic illuminating element panel is using red, green Three colour organic luminous element panels of color, blue-light source；Use the organic illuminating element of red green, blue and white light source Panel；And any one of the organic illuminating element panel using white light source.
CN201810535454.7A 2017-06-02 2018-05-29 Colour filter and organic light-emitting display device comprising it Withdrawn CN108987435A (en)

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KR1020170069256A KR20180132386A (en) 2017-06-02 2017-06-02 Color Filter for Organic Light Emitting Diode Display and Organic Light Emitting Diode Display Including the Same
KR10-2017-0069256 2017-06-02

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KR (1) KR20180132386A (en)
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN114267807A (en) * 2021-12-15 2022-04-01 武汉华星光电半导体显示技术有限公司 Display panel

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