CN1735291A - Light color filtering conversion device and organic electro-luminescence display device - Google Patents
Light color filtering conversion device and organic electro-luminescence display device Download PDFInfo
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- CN1735291A CN1735291A CN 200510093644 CN200510093644A CN1735291A CN 1735291 A CN1735291 A CN 1735291A CN 200510093644 CN200510093644 CN 200510093644 CN 200510093644 A CN200510093644 A CN 200510093644A CN 1735291 A CN1735291 A CN 1735291A
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Abstract
This invention relates to optical-color filter converter and opposite organic electroluminescence display device. Wherein, -integrating a first color conversion layer, a first, second and third color photoresist on top surface of transparent base plate, arranging a first and second organic luminescence unit separately on vertical extension place of first color conversion layer, the first and second color photoresist, and second and third color photoresist. The invention can decrease effectively the vapor plating time, and increase display order, transparency and conversion efficiency.
Description
Technical field
The present invention relates to a kind of light color filtering conversion device and comprise the organic electroluminescence display device of this light color filtering conversion device.It not only can effectively improve display brightness and color range, and can effectively simplify processing step and improve the production qualification rate.
Background technology
In numerous displays, full-color Display Technique is the key point of this display development success or not often, and with regard to organic electroluminescence display device (OLED), realizes that the modal method of full-color Presentation Function has following three kinds:
1. the three primary colors independent pixel is luminous: can produce red (R), green (G), blue (B) the independent setting of trichromatic organic electro-luminescent display spare (Side by Side) respectively, and these three kinds of coloured light are produced full-color display effect with the proper proportion mix and match.
Yet, because this kind organic electroluminescence display device need produce different color light via repeatedly evaporation and mask steps when making organic light-emitting units, not only comparatively complicated on fabrication schedule, and the poor accuracy when evaporation or shielding contraposition causes the decline of product percent of pass easily and increases manufacturing cost.
2. look transformation approach: it mainly is to utilize a blue light organic electrically execiting light-emitting device as a transmitting illuminant, again with this blue-light excited one photochromic switching film (CCM:Color Change Media) obtaining RGB (RGB) three primary colors visible light, and realize the purpose of full-colorization with this.
Yet, and influence the display brightness of this organic electroluminescence display device in photochromic conversion because that the energy difference between this blue-light source and the red light apart from bigger, therefore will cause blue-light source to be converted to the efficient of red light will be not high.
3. colored filter (Color Filter): be provided with at least one organic electro-luminescent display spare that sends white light source, be used the colored filter of technology maturation, use by colored filter is with the purpose of the light color filtering of finishing white light source, and therefore produces full-color display effect.
The general using colored filter carries out the organic electroluminescence display device of light color filtering, as shown in Figure 1, colored filter 10 is provided with a black matrix" 13 (Black Matrix) in a transparency carrier 11, and be provided with a chromatic filter layer 15 with light color filtering function in transparency carrier 11 upper surfaces that are not provided with black matrix" 13, include first chromatic photoresist 151, second chromatic photoresist 153 and the 3rd chromatic photoresist 155.Select to be provided with a planarization layer (Over Coat) 17 or one barrier layer in the top of black matrix" 13 and chromatic filter layer 15, to help the carrying out of follow-up manufacturing process.
In addition, the lower electrode 21 of organic electric-excitation luminescent (OLED) device 20 directly is arranged at the upper surface of barrier layer or planarization layer 17, and be provided with an organic light-emitting units 23 and a subtend electrode 25 in regular turn in the part upper surface of lower electrode 21, conducting by operating current between lower electrode 21 and the counter electrode 25, cause organic light-emitting units 23 to project a white light source S, white light source S is after penetrating chromatic filter layer 15, to carry out the action of a light color filtering, and become indigo plant (B), green (G), red (R) primaries L1, L2, L3, and rely on this matched combined to realize the purpose of organic electric-excitation luminescent (OLED) display unit 200 full-color demonstrations.
Use by colored filter 10, a kind of organic light-emitting units 23 that produces white light source S of 200 needs of this OLED display unit, therefore also only need less evaporation process, and the shielding of using shields as full-open type, just can finish the setting of organic light-emitting units 23, the degree of difficulty in the time of can effectively reducing evaporation or shielding contraposition.Yet,, thereby can't effectively improve its luminescent quality because this white light source S is not high to the penetrance of chromatic filter layer 15, and then influences the luminosity and the photochromic saturation of this OLED display unit 200.
Summary of the invention
The organic electroluminescence display device that technical problem to be solved by this invention is to provide a kind of light color filtering conversion device of novelty and comprises this light color filtering conversion device.Its degree of difficulty that not only can effectively lower evaporation and contraposition also can improve color light source to the penetrance of chromatic photoresist and the conversion efficiency of color converting layer to improve the qualification rate of product.
Main purpose of the present invention, be to provide a kind of light color filtering conversion device, it is integrated in conversion layer of the same colour at least and at least one chromatic photoresist the part upper surface of one transparency carrier, the color light source that this organic electrically execiting light-emitting device produced can be filtered and changed by this, and the evaporation number of times can reduce organic light-emitting units and be provided with the time, and then improve the manufacturing efficient of this organic electroluminescence display device.
Secondary objective of the present invention is to provide a kind of light color filtering conversion device, and wherein this color converting layer only is arranged at a sub-pixel place of a pixel, can effectively reduce the material cost of this color converting layer by this.
Another purpose of the present invention, the organic electroluminescence display device that is to provide a kind of light color filtering conversion device and comprises this light color filtering conversion device.Wherein, can the color light source that organic light-emitting units produced that luminous efficiency is higher carry out photochromic conversion, by this with useful life of effective this organic electroluminescence display device of raising by the setting of color converting layer.
Another purpose of the present invention, the organic electroluminescence display device that is to provide a kind of light color filtering conversion device and comprises this light color filtering conversion device, wherein the energy difference distance between the coloured light that is produced after this color light source and the conversion is less, conversion efficiency and the useful life that can effectively improve this color converting layer by this.
Another purpose of the present invention, the organic electroluminescence display device that is to provide a kind of light color filtering conversion device and comprises this light color filtering conversion device, by first coloured light, second coloured light, the 3rd coloured light and a white light source are mixed, can effectively improve the color range and the color saturation of the display light source of this organic light-emitting display device.
For this reason, for achieving the above object, the invention provides a kind of organic electroluminescence display device, it is mainly constructed and includes: a light color filtering conversion device, and mainly the part surface in a transparency carrier is provided with at least one first color converting layer, at least one first chromatic photoresist, at least one second chromatic photoresist and at least one the 3rd chromatic photoresist; One bottom electrode is arranged at the part surface of light color filtering conversion device; At least one organic light-emitting units is arranged at the part surface of lower electrode; One subtend electrode is arranged at the part surface of organic light-emitting units.
For reaching above-mentioned purpose, the present invention also can provide a kind of light color filtering conversion device, and it is mainly constructed and includes: a transparency carrier; At least one first color converting layer, at least one first chromatic photoresist, at least one the 3rd chromatic photoresist of at least one second chromatic photoresist are arranged at the part surface of transparency carrier.
Light color filtering conversion device of the present invention and organic electroluminescence display device can be realized full-color display effect, and display brightness and color range are higher, and cost is low, and manufacturing step is simple.
Description of drawings
Fig. 1 is the generalized section of organic electroluminescence display device commonly used.
Fig. 2 is light color filtering conversion device of the present invention and the generalized section that comprises organic electroluminescence display device one preferred embodiment of this light color filtering conversion device.
Fig. 3 is the generalized section of another embodiment of the present invention.
Fig. 4 is the generalized section of further embodiment of this invention.
Fig. 5 is the generalized section of further embodiment of this invention.
Fig. 6 is the vertical view of further embodiment of this invention.
Fig. 7 is the generalized section of active organic electroluminescent display unit of the present invention.
Fig. 8 is the generalized section of further embodiment of this invention.
Wherein, Reference numeral:
10 colored filters, 11 transparency carriers
13 black matrix"s, 15 chromatic filter layers
151 first chromatic photoresists, 153 second chromatic photoresists
155 the 3rd chromatic photoresists, 17 planarization layers
20 organic electrically execiting light-emitting devices, 21 lower electrodes
23 organic light-emitting units, 25 counter electrodes
30 light color filtering conversion devices, 31 transparency carriers
32 substrates, 33 black matrix"s
34 colored filters, 351 first chromatic photoresists
353 second chromatic photoresists 355 the 3rd chromatic photoresist
357 the 4th chromatic photoresists, 361 first color converting layers
363 second color converting layers, the 37 smooth unit that block
39 encapsulation cover plates, 40 organic electrically execiting light-emitting devices
41 lower electrodes, 43 organic light-emitting units
431 first organic light-emitting units, 4,311 first organic luminous layers
432 hole injection layers, 433 hole transmission layers
434 the 3rd organic luminous layers, 435 having ideals, morality, culture, and discipline machine luminescent layers
437 second organic light-emitting units, 4,371 second organic luminous layers
438 electron transfer layers, 439 electron injecting layers
45 counter electrodes, 50 light color filtering conversion devices
51 transparency carriers, 53 thin-film transistors
54 insulating barriers, 551 first chromatic photoresists
553 second chromatic photoresists 555 the 3rd chromatic photoresist
561 first color converting layers, 61 lower electrodes
63 organic light-emitting units, 631 first organic light-emitting units
637 second organic light-emitting units
200 organic electroluminescence display devices
400 organic electroluminescence display devices
401 organic electroluminescence display devices
403 organic electroluminescence display devices
405 organic electroluminescence display devices
601 active organic electroluminescent display unit
603 active organic electroluminescent display unit
Embodiment
For feature of the present invention, structure and effect are had further understanding and understanding, existing careful preferred embodiment and the accompanying drawing of cooperating describes in detail as the back:
At first, see also Fig. 2, be the generalized section of light color filtering conversion device of the present invention and organic electroluminescence display device one preferred embodiment; As shown in the figure, light color filtering conversion device of the present invention 30 mainly is provided with at least one black matrix" 33 (Black Matrix) in the part upper surfaces of a transparency carrier 31, and is provided with at least one first color converting layer 361, at least one first chromatic photoresist 351, at least one second chromatic photoresist 353 and at least one the 3rd chromatic photoresist 355 in the part upper surface that part upper surface and this transparency carrier 31 of black matrix" 33 is not provided with black matrix" 33.Be coated with a smooth unit 37 that blocks in this black matrix" 33, first color converting layer 361, first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355 tops again, for example a planarization layer (Overcoat) and/or a barrier layer (Barrier Layer), and, will help the setting of this organic electric-excitation luminescent (OLED) device 40 by this smooth setting of blocking unit 37.
The smooth upper surface part subregion of blocking unit 37 of this light color filtering conversion device 30 can be provided with the lower electrode 41 of at least one OLED device 40, and is provided with an organic light-emitting units 43 and a subtend electrode 45 in regular turn in the part upper surface of this lower electrode 41.Wherein, this organic light-emitting units 43 includes at least one first organic light-emitting units 431 and at least one second organic light-emitting units 437.This first organic light-emitting units 431 is arranged at lower electrode 41 upper surfaces of the vertical extent position of first chromatic photoresist 351, second chromatic photoresist 353 and first color converting layer 361, and second organic light-emitting units 437 then is arranged at the upper surface of first organic light-emitting units 431 of the vertical extent position of lower electrode 41 upper surfaces of vertical extent position of the 3rd chromatic photoresist 355 and second chromatic photoresist 353.Therefore will have this first organic light-emitting units 431 on the vertical extent position of this second chromatic photoresist 353 and second the folded of organic light-emitting units 437 established.
When supply between bottom electrode 41 and the counter electrode 45 has an operating current, this first organic light-emitting units 431 and second organic light-emitting units 437 can produce one first a light source S1 and a secondary light source S2 respectively, and first organic light-emitting units 431 and second organic light-emitting units 437 that should folded establish then produce one the 5th light source S5.Wherein, this first light source S1 will filter after penetrating first chromatic photoresist 351 and produce one first coloured light L1, and this first light source S1 will be converted to one second coloured light L2 after penetrating this first color converting layer 361, this secondary light source S2 will filter after penetrating the 3rd chromatic photoresist 355 and form one the 3rd coloured light L3, by the first coloured light L1, the second coloured light L2 of proper proportion and the mixing of the 3rd coloured light L3, can reach the full-color display effect of this OLED display unit 400.
In addition, this first light source S1 and secondary light source S2 can be mutually a complementary colours light source each other, and the 5th light source S5 that should be produced with first organic light-emitting units 431 and second organic light-emitting units 437 of overlapped way setting will be a white light source.And this second chromatic photoresist 353 can be a hollow-out parts or transmittance section, make the 5th light source S5 (white light source) can directly penetrate this second chromatic photoresist 353 (hollow-out parts or transmittance section), and form a multicolored light L5 (white light), wherein, distribute because this multicolored light L5 (white light) has wider wave-length coverage, therefore will help improving color range and the brightness of this OLED display unit 400 when showing.
In the present invention's one actual example, this first light source S1 and secondary light source S2 can be respectively a blue-light source and an orange light source (yellow light sources).And this first chromatic photoresist 351, second chromatic photoresist 353 and 355 of the 3rd chromatic photoresists are respectively a blue photoresistance, transmittance section (hollow-out parts) and red photoresistance, then this first light source S1 (blue-light source) and secondary light source S2 (orange light source) are after penetrating this first chromatic photoresist 351 (blue photoresistance) and the 3rd colored resistance 355 (red photoresistances) respectively, to filter and form the first coloured light L1 (blue light) and the 3rd coloured light L3 (red light), and the 5th light source S5 (white light source) will form a multicolored light L5 (white light) after penetrating second chromatic photoresist 353 (transmittance section or hollow-out parts).And this first light source S1 is after penetrating first color converting layer 361, this first light source S1 (blue-light source) can be converted into one second coloured light L2 (green light), therefore, this first color converting layer 361 may be selected to be a color converting layer that blue-light source can be converted to green light.
Because this first light source S1 (blue-light source) and secondary light source S2 (orange light source) are compared to the white light source S of common features, this first chromatic photoresist 351 and the 3rd chromatic photoresist 355 are all had preferable penetrance, therefore can effectively improve the display brightness of this OLED display unit 400.This first color converting layer 361 is converted to the second coloured light L2 (green light) with this first light source S1 (blue-light source) simultaneously, because wavelength between this first light source S1 (blue-light source) and the second coloured light L2 (green light) and energy difference are apart from comparatively approaching with comparing of common features (CCM), can improve the conversion efficiency between this first light source S1 (blue-light source) and the second coloured light L2 (green light), and effectively reduce the power consumption of this OLED display unit 400.
Compared to other OLED device, use always in the OLED device in order to produce the OLED device of red light, no matter compared to other OLED device a certain distance is arranged all at luminosity or on useful life, and cause the luminance shortage of this red light easily, will be unfavorable for the carrying out of the demonstration of this OLED display unit 400.In addition can be under the situation that the OLED device that produces red light source is not set by the use of this first color converting layer 361, reach the purpose that produces red light and carry out full-colorization demonstration with this OLED display unit 400, and the useful life that can effectively improve this OLED display unit 400.
In the above embodiment of the present invention, order is set can be exchanged of this first organic light-emitting units 431 and second organic light-emitting units 437.For example, this second organic light-emitting units 437 is set earlier, then is provided with this first organic light-emitting units 431 in the part upper surface of this second organic light-emitting units 437 again.
See also Fig. 3, be the generalized section of another embodiment of the present invention; As shown in the figure, this organic electric-excitation luminescent (OLED) display unit 401, mainly be provided with at least one OLED device 40 in the top of a colored filter 34, this colored filter 34 includes one first chromatic photoresist 351, second chromatic photoresist 353, the 3rd chromatic photoresist 355 and the 4th chromatic photoresist 357, and is provided with one first color converting layer 361 in the vertical extent position of the 4th chromatic photoresist 357.In other words, be provided with the 4th chromatic photoresist 357 in the vertical extent position of this first color converting layer 361.
Order is set is exchanged of first organic light-emitting units 431 and second organic light-emitting units 437, for example, earlier 437 of second organic light-emitting units are arranged at the vertical extent position of second chromatic photoresist 353 and the 3rd chromatic photoresist 355, then again this first organic light-emitting units 431 are arranged at the vertical extent position of this first chromatic photoresist 351, second chromatic photoresist 353 and the 4th chromatic photoresist 357 (first color converting layer 361).Wherein, the first light source S1 that locational first organic light-emitting units 431 of the 4th chromatic photoresist 357 (first color converting layer 361) vertical extent is produced will penetrate this first color converting layer 361 and the 4th chromatic photoresist 357 in regular turn, and this first light source S1 will carry out the action of a photochromic conversion and light color filtering in regular turn when penetrating this first color converting layer 361 and the 4th chromatic photoresist 357, and by this to produce one second coloured light L2.And, and improve the photochromic purity of this second coloured light L2 by the wave spread that can effectively limit this second coloured light L2 that is provided with of the 4th chromatic photoresist 357.
In one embodiment of the invention, when first color converting layer 361 is chosen as one blue-light source can be converted into the color converting layer of green light the time, 357 of the 4th chromatic photoresists are chosen as a green photoresistance.In further embodiment of this invention, the 4th chromatic photoresist 357 also can be set at a hollow-out parts or transmittance section.
See also Fig. 4, be the generalized section of further embodiment of this invention; As shown in the figure, this organic electric-excitation luminescent (OLED) display unit 403, mainly the part upper surface in a substrate 32 is provided with this first organic light-emitting units 431 and second organic light-emitting units 437, and being provided with an encapsulation cover plate 39 in the part upper surface of this substrate 32, these encapsulation cover plate 39 inside are coated with this first organic light-emitting units 431 and this second organic light-emitting units 437.The bottom of this encapsulation cover plate 39 is respectively arranged with one first chromatic photoresist 351, one second chromatic photoresist 353, one the 3rd chromatic photoresist 355 and one first color converting layer 361, makes this OLED display unit 403 carry out top light emitting (Top Emission) with this.
In addition, this first organic light-emitting units 431 is arranged at the vertical extent position of this first chromatic photoresist 351, second chromatic photoresist 353, the 3rd chromatic photoresist 355 and first color converting layer 361, and this second organic light-emitting units 437 then is arranged at the upper surface of first organic light-emitting units 431 of the vertical extent position of this second chromatic photoresist 353 and the 3rd chromatic photoresist 355.Certainly, in further embodiment of this invention, this substrate 32 also can be set at a light color filtering conversion device (30, as shown in Figure 2), reach the two-way luminous purpose of this OLED display unit.
See also Fig. 5 and Fig. 6, be respectively the generalized section of further embodiment of this invention; As shown in the figure, this organic electric-excitation luminescent (OLED) display unit 405, mainly the part upper surface in a light color filtering conversion device 30 is provided with an OLED device 40.Wherein, these light color filtering conversion device 30 main this first chromatic photoresist 351, second chromatic photoresist 353, first color converting layer 361 and second color converting layers 363 of being provided with in the surface of a transparency carrier 31.And the light color filtering conversion device 30 of present embodiment is with Fig. 2 difference, the 3rd chromatic photoresist (355) among Fig. 2 replaced with this made second color converting layer 363 of material of the photochromic transfer characteristic of a tool.First organic light-emitting units 431 of this OLED device 40 is arranged at the vertical extent position of first chromatic photoresist 351, second chromatic photoresist 353, first color converting layer 361 and second color converting layer 363, and this second organic light-emitting units 437 only is arranged on the vertical extent position of this second chromatic photoresist 353.
The first light source S1 that this first organic light-emitting units 431 is produced will penetrate this first color converting layer 361 and second color converting layer 363 respectively, and be converted into one second coloured light L2 and the 3rd coloured light L3, in one embodiment of the invention, this first light source S1 can be a blue-light source, and this second coloured light L2 and the 3rd coloured light L3 then are respectively a green light and red light.This second chromatic photoresist 353 can be a transmittance section or hollow-out parts.By this, first organic light-emitting units 431 of this stacked setting and second organic light-emitting units 437, the 5th light source S5 (white light source) that is produced can directly penetrate this second chromatic photoresist 353 (transmittance section or hollow-out parts) and form a multicolored light L5 (white light).
Box-like one of them of a hole injection layer 432 (HIL), a hole transmission layer 433 (HTL), an organic luminous layer (EML), an electron transfer layer 438 (ETL), an electron injecting layer 439 (EIL) and above-mentioned each set of devices can be selected to include in these organic light-emitting units 43 inside.
In one embodiment of the invention, can be before this organic luminous layer setting, be sequentially provided with this hole injection layer 432 and hole transmission layer 433 in the upper surface of this lower electrode 41, then be provided with this organic luminous layer in the upper surface of this hole transmission layer 433 again.For example, first organic luminous layer 4311 of this first organic light-emitting units 431 and second organic luminous layer 4371 of second organic light-emitting units 437, be provided with this electron transfer layer 438 and electron injecting layer 439 in regular turn in the upper surface of this organic luminous layer more afterwards, upper surface in this electron injecting layer 439 is provided with a subtend electrode 45 at last, by this to form this OLED device 40.
This organic light-emitting units 43 may be selected to be that a single-layer type organic luminous layer or a multilayer are folded establishes the type organic luminous layer and constitute.For example, first organic light-emitting units 431 can be a single-layer type organic luminous layer, and include this first organic luminous layer 4311 in its inside, and this second organic light-emitting units 437 to be a multilayer folded establishes the type organic luminous layer, its second organic luminous layer 4371 is made of one the 3rd organic luminous layer 434 and a having ideals, morality, culture, and discipline machine luminescent layer 435 with the overlapped way setting.
The position that is provided with of first chromatic photoresist 351, second chromatic photoresist 353, the 3rd chromatic photoresist 355 and first color converting layer 361 of this light color filtering conversion device 30 can a matrix-style be arranged, and the position that is provided with of this first organic light-emitting units 431 and second organic light-emitting units 437 is also adjusted thereupon, in other words should constitute the single pixel (pixel) of this OLED display unit with first chromatic photoresist 351, second chromatic photoresist 353, the 3rd chromatic photoresist 355 and first color converting layer 361 that matrix-style is arranged, as shown in Figure 6.
See also Fig. 7, be the generalized section of further embodiment of this invention; As shown in the figure, organic electroluminescence display device of the present invention is one active (Active Matrix) organic electroluminescence display device 601, mainly the part upper surface in a transparency carrier 51 is provided with at least one thin-film transistor (TFT) 53, and is coated with at least one insulating barrier 54 in the part upper surface of this transparency carrier 51 and this thin-film transistor 53.Wherein, these insulating barrier 54 inside are provided with at least one first chromatic photoresist 551, second chromatic photoresist 553, the 3rd chromatic photoresist 555 and first color converting layer 561.Part upper surface in this insulating barrier 54 is provided with at least one lower electrode 61, and this lower electrode 61 will electrically connect with corresponding thin-film transistor 53 respectively.Wherein, can be provided with at least one organic light-emitting units 63, by this to form the active organic electroluminescent display unit of a COA (color filter on array) in the part upper surface of this lower electrode 61.
The setting of this organic light-emitting units 63, mainly the part upper surface in this lower electrode 61 forms this first organic light-emitting units 631 and second organic light-emitting units 637.Wherein, this second organic light-emitting units 637 is arranged at the vertical extent position of second chromatic photoresist 553 and the 3rd chromatic photoresist 555, and this first organic light-emitting units 631 then is arranged at the vertical extent position of first chromatic photoresist 551, second chromatic photoresist 553, the 3rd chromatic photoresist 555 and first color converting layer 561.
In single pixel (pixel), include first chromatic photoresist 551, second chromatic photoresist 553, the 3rd chromatic photoresist 555 and first color converting layer 561, and this first chromatic photoresist 551, second chromatic photoresist 553, the 3rd chromatic photoresist 555 and first color converting layer 561 are respectively the single sub-pixel (subpixel) in this single pixel, this first chromatic photoresist 551 in the single in addition pixel, second chromatic photoresist 553, the position being set being exchanged between the 3rd chromatic photoresist 555 and first color converting layer 561, for example, this first color converting layer 561 and second chromatic photoresist 553 are provided with the intermediate sub-pixels position of single pixel in present embodiment.Yet this first color converting layer 561 and/or second chromatic photoresist 553 also can be arranged at the dual-side sub-pixel position of single pixel when practical application.In the time of the position change of first chromatic photoresist 551, second chromatic photoresist 553, the 3rd chromatic photoresist 555 and first color converting layer 561, the position that is provided with of this first organic light-emitting units 631 and second organic light-emitting units 637 also changes thereupon,
See also Fig. 8, be the generalized section of further embodiment of this invention; As shown in the figure, the active OLED display unit 603 of the present invention, mainly the part upper surface in this light color filtering conversion device 50 is provided with at least one thin-film transistor 53, and be provided with this insulating barrier 54 and lower electrode 61 in the part upper surface of this thin-film transistor 53 and light color filtering conversion device 50 in regular turn, then be provided with this organic light-emitting units 63 in the part upper surface of lower electrode 61 again, by this to form the structure of an AOC (array on color filter).
This organic light-emitting units 63 includes one first organic light-emitting units 631 and second organic light-emitting units 637.Wherein, this first organic light-emitting units 631 is arranged at the vertical extent position of this first chromatic photoresist 551 and first color converting layer 561, and this second organic light-emitting units 637 then is arranged at the vertical extent position of second chromatic photoresist 553 and the 3rd chromatic photoresist 555.
In one embodiment of the invention, this first organic light-emitting units 631 can produce one first light source S1, and second organic light-emitting units 637 then can produce a secondary light source S2.Wherein, this first light source S1 and secondary light source S2 are respectively a blue-light source and a white light source, penetrable this first chromatic photoresist 551 of this first light source S1 (blue-light source) also filters generation one first coloured light L1 (blue light), and this first light source S1 (blue-light source) will be converted into one second coloured light L2 (green glow) after penetrating this first color converting layer 561; This secondary light source S2 will filter respectively after penetrating this second chromatic photoresist 553 (transmittance section or hollow-out parts) and the 3rd chromatic photoresist 555 becomes a multicolored light L5 (white light) and the 3rd coloured light L3 (ruddiness).
This organic light-emitting units 63 also can be selected by at least one host emitter (Host Emitter; H) be doped with at least one alloy (Dopant in; D) doping type organic luminous layer.For example, in this second organic light-emitting units 637, in a host emitter material layer, be doped with a guest emitter material, and reach the purpose that this second organic light-emitting units 637 produces secondary light source S2 (white light source) with this.
In sum, the present invention relates to a kind of light color filtering conversion device, not only can effectively improve display brightness and color range, also can effectively simplify manufacturing step and improve the production qualification rate when knowing.So the present invention is real in being rich in novelty, creativeness, practicality, meets the patent application condition undoubtedly.
The above, it only is preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, promptly all equivalences of being made according to the described shape of claim of the present invention, structure, feature and spirit change and revise, and all should be included in the scope of the present invention.
Claims (30)
1. an organic electroluminescence display device is characterized in that, main structure includes:
One light color filtering conversion device, mainly the part surface in a transparency carrier is provided with at least one first color converting layer, at least one first chromatic photoresist, at least one second chromatic photoresist and at least one the 3rd chromatic photoresist;
One bottom electrode is arranged at the part surface of this light color filtering conversion device;
At least one organic light-emitting units is arranged at the part surface of this lower electrode;
One subtend electrode is arranged at the part surface of this organic light-emitting units.
2. organic electroluminescence display device as claimed in claim 1 is characterized in that, this second chromatic photoresist may be selected to be a transmittance section or a hollow-out parts.
3. organic electroluminescence display device as claimed in claim 1, it is characterized in that, this organic light-emitting units includes one first organic light-emitting units and one second organic light-emitting units, and this first organic light-emitting units is arranged at this first color converting layer, the vertical extent position of first chromatic photoresist and second chromatic photoresist, and this second organic light-emitting units, then be arranged at the vertical extent position of this second chromatic photoresist and the 3rd chromatic photoresist, and on this second chromatic photoresist, be formed with first organic light-emitting units and second organic light-emitting units with the overlapped way setting.
4. organic electroluminescence display device as claimed in claim 3, it is characterized in that, this first organic light-emitting units can produce one first light source, and this second organic light-emitting units then can produce a secondary light source, and this first light source and the complementary each other light source of secondary light source.
5. organic electroluminescence display device as claimed in claim 4 is characterized in that, this first light source can be a blue-light source, and this secondary light source then is an orange light source.
6. organic electroluminescence display device as claimed in claim 3 is characterized in that, order is set can be exchanged of this first organic light-emitting units and second organic light-emitting units.
7. organic electroluminescence display device as claimed in claim 3, it is characterized in that, the position is set can be exchanged of this first color converting layer, first chromatic photoresist, second chromatic photoresist and the 3rd chromatic photoresist, and the position that is provided with of this first organic light-emitting units and second organic light-emitting units also changes thereupon.
8. organic electroluminescence display device as claimed in claim 1, it is characterized in that, this organic light-emitting units includes one first organic light-emitting units and one second organic light-emitting units, and this first organic light-emitting units is arranged at the vertical extent position of this first color converting layer, first chromatic photoresist, second chromatic photoresist and the 3rd chromatic photoresist, and this second organic light-emitting units then is arranged at the vertical extent position of this second chromatic photoresist and the 3rd chromatic photoresist.
9. organic electroluminescence display device as claimed in claim 1, it is characterized in that, the 3rd chromatic photoresist can be made by the material of the photochromic transfer characteristic of a tool, make it to become one second color converting layer, and this organic light-emitting units includes one first organic light-emitting units and one second organic light-emitting units, this first organic light-emitting units is arranged at the vertical extent position of this first color converting layer, second color converting layer, first chromatic photoresist and second chromatic photoresist, and this second organic light-emitting units then is arranged at the vertical extent position of this second chromatic photoresist.
10. organic electroluminescence display device as claimed in claim 1, it is characterized in that, this organic light-emitting units includes one first organic light-emitting units and one second organic light-emitting units, and this first organic light-emitting units is arranged at the vertical extent position of this first color converting layer and first chromatic photoresist, and this second organic light-emitting units then is arranged at the vertical extent position of this second chromatic photoresist and the 3rd chromatic photoresist.
11. organic electroluminescence display device as claimed in claim 10 is characterized in that, this second organic light-emitting units can produce a secondary light source, and this secondary light source is a white light source.
12. organic electroluminescence display device as claimed in claim 1, it is characterized in that, also include an encapsulation cover plate, the part surface that is fixedly arranged on this transparency carrier can be in order to coat this organic light-emitting units, and the bottom of this encapsulation cover plate also is provided with one first color converting layer, one first chromatic photoresist, one second chromatic photoresist and one the 3rd chromatic photoresist, makes it to become a two-way luminous organic electroluminescence display device.
13. organic electroluminescence display device as claimed in claim 1, it is characterized in that, this light color filtering conversion device also can be set at a substrate, and include an encapsulation cover plate, the part surface that is fixedly arranged on this substrate can be in order to coat this organic light-emitting units, this first color converting layer, first chromatic photoresist, second chromatic photoresist and the 3rd chromatic photoresist then are fixedly arranged on the bottom of this encapsulation cover plate, make it to become the organic electroluminescence display device of a top light emitting.
14. organic electroluminescence display device as claimed in claim 1, it is characterized in that, the part surface of this transparency carrier also is provided with at least one thin-film transistor, and be provided with at least one insulating barrier and this lower electrode in regular turn in the part surface of this thin-film transistor and this transparency carrier, this first color converting layer, first chromatic photoresist, second chromatic photoresist and the 3rd chromatic photoresist then are arranged at this insulating barrier inside, make it to become an active organic electroluminescent display unit.
15. organic electroluminescence display device as claimed in claim 14, it is characterized in that, also include an encapsulation cover plate, the part surface that is fixedly arranged on this transparency carrier can be in order to coat this organic light-emitting units, and the bottom of encapsulation cover plate can be installed with one first color converting layer, one first chromatic photoresist, one second chromatic photoresist and one the 3rd chromatic photoresist again, makes it to become a two-way luminous organic electroluminescence display device.
16. organic electroluminescence display device as claimed in claim 1, it is characterized in that, the part surface of this light color filtering conversion device also is provided with at least one thin-film transistor, and be provided with at least one insulating barrier and lower electrode in regular turn in the part surface of this thin-film transistor and light color filtering conversion device, make it to become an active organic electroluminescent display unit.
17. organic electroluminescence display device as claimed in claim 16, it is characterized in that, also include an encapsulation cover plate, the part surface that is fixedly arranged on this transparency carrier can be in order to coat this organic light-emitting units, and the bottom of encapsulation cover plate can be installed with one first color converting layer, one first chromatic photoresist, one second chromatic photoresist and one the 3rd chromatic photoresist again, makes it to become a two-way luminous organic electroluminescence display device.
18. organic electroluminescence display device as claimed in claim 17 is characterized in that, this light color filtering conversion device can be set at a substrate, makes it to become the organic electroluminescence display device of a top light emitting.
19. organic electroluminescence display device as claimed in claim 1 is characterized in that, this light color filtering conversion device also include at least one planarization layer, at least one barrier layer and knockdown one of them.
20. organic electroluminescence display device as claimed in claim 1 is characterized in that, the part surface of the transparency carrier of this light color filtering conversion device is provided with at least one black matrix".
21. organic electroluminescence display device as claimed in claim 1 is characterized in that, this first color converting layer below has additional one the 4th chromatic photoresist.
22. organic electroluminescence display device as claimed in claim 21 is characterized in that, this first chromatic photoresist, second chromatic photoresist, the 3rd chromatic photoresist and the 4th chromatic photoresist are arranged at this transparency carrier surface, to form a colored filter.
23. organic electroluminescence display device as claimed in claim 1, it is characterized in that, this organic light-emitting units can select respectively to include a hole injection layer, a hole transmission layer, an organic luminous layer, an electron transfer layer, an electron injecting layer and knockdown one of them.
24. organic electroluminescence display device as claimed in claim 1 is characterized in that, this organic light-emitting units may be selected to be a single-layer type organic luminous layer, folded one of them of establishing a type organic luminous layer and a doping type organic luminous layer of a multilayer constitutes.
25. a light color filtering conversion device is characterized in that, main structure includes:
One transparency carrier;
At least one first color converting layer, at least one first chromatic photoresist, at least one second chromatic photoresist and at least one the 3rd chromatic photoresist are arranged at the part surface of this transparency carrier.
26. light color filtering conversion device as claimed in claim 25 is characterized in that, this second chromatic photoresist may be selected to be a transmittance section or hollow-out parts.
27. light color filtering conversion device as claimed in claim 26 is characterized in that, one of them of this first chromatic photoresist and the 3rd chromatic photoresist can be made by the material of the photochromic transfer characteristic of a tool, to form one second color converting layer.
28. a light color filtering conversion device, it is mainly constructed and includes:
One colored filter, mainly the part surface in a transparency carrier is provided with at least one first chromatic photoresist, at least one second chromatic photoresist, at least one the 3rd chromatic photoresist and at least one the 4th chromatic photoresist;
At least one first color converting layer is arranged at the vertical extent position of the 4th chromatic photoresist of this colored filter.
29. light color filtering conversion device as claimed in claim 28 is characterized in that, this second chromatic photoresist may be selected to be a transmittance section or a hollow-out parts.
30. light color filtering conversion device as claimed in claim 29 is characterized in that, can have additional one second color converting layer on the vertical extent position of this first chromatic photoresist or the 3rd chromatic photoresist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510093644 CN1735291A (en) | 2005-08-31 | 2005-08-31 | Light color filtering conversion device and organic electro-luminescence display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510093644 CN1735291A (en) | 2005-08-31 | 2005-08-31 | Light color filtering conversion device and organic electro-luminescence display device |
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| Publication Number | Publication Date |
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| CN1735291A true CN1735291A (en) | 2006-02-15 |
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| CN 200510093644 Pending CN1735291A (en) | 2005-08-31 | 2005-08-31 | Light color filtering conversion device and organic electro-luminescence display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032240A1 (en) * | 2013-09-09 | 2015-03-12 | 京东方科技集团股份有限公司 | Oled array substrate, manufacturing method therefor, and display apparatus |
| WO2022267643A1 (en) * | 2021-06-21 | 2022-12-29 | 广东奥普特科技股份有限公司 | Color-switchable light source and preparation method therefor |
-
2005
- 2005-08-31 CN CN 200510093644 patent/CN1735291A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032240A1 (en) * | 2013-09-09 | 2015-03-12 | 京东方科技集团股份有限公司 | Oled array substrate, manufacturing method therefor, and display apparatus |
| WO2022267643A1 (en) * | 2021-06-21 | 2022-12-29 | 广东奥普特科技股份有限公司 | Color-switchable light source and preparation method therefor |
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