CN1731905A - Low power color organic electro-luminescence display device - Google Patents

Low power color organic electro-luminescence display device Download PDF

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Publication number
CN1731905A
CN1731905A CN 200510092874 CN200510092874A CN1731905A CN 1731905 A CN1731905 A CN 1731905A CN 200510092874 CN200510092874 CN 200510092874 CN 200510092874 A CN200510092874 A CN 200510092874A CN 1731905 A CN1731905 A CN 1731905A
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organic
chromatic photoresist
display device
light
light source
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冯建源
陈丁洲
蓝文正
江建志
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YOUJING SCIENCE AND TECHNOLOGY Co Ltd
Univision Technology Inc
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YOUJING SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

This invention relates to a full color organic electroluminescence display device, mainly comprising a lower electrode on upper surface of a color filter, a first organic light-emitting device on upper surface of lower electrode to generate the first light source and a fourth organic light-emitting unit to generate a fourth source, wherein, the first colorama can penetrate the first colorama resistance and filter to generate a first colorama, the fourth colorama is located in the vertical extension position of a second colorama resistance and a third colorama resistance, and the fourth colorama when penetrates the second colorama resistance, filters to generate a second colorama and when penerates the third colorama resistance, generates a third colorama, by mixing the first, second and third colorama, actualizes full-color luminous function.

Description

The whole colour organic electroluminous display device of low power consumption
Technical field
The present invention relates to a kind of organic electroluminescence display device, the whole colour organic electroluminous display device that particularly relates to a kind of low power consumption, not only can effectively improve light source penetrance and color saturation, the loss that also can effectively reduce power supply with prolong device useful life.
Background technology
In numerous displays, full-color Display Technique is the key point of this display development success or not often, with regard to organic electroluminescence display device (OLED), realizes that the modal method of full-color display effect has following two kinds:
1. 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 will be produced full-color display effect with the proper proportion mix and match.Yet, because this kind organic electroluminescence display device need produce the organic light-emitting units of different color light via evaporation step repeatedly when making, not only comparatively complicated on production process, and therefore the accuracy when being difficult to hold the evaporation contraposition reduces product percent of pass easily and improves cost of manufacture relatively.
2. be provided with at least one organic electro-luminescent display spare that sends white light source, and with this white light source as backlight, be used highly skilled colored filter, use by colored filter is with the purpose of the light color filtering of realizing white light source, and therefore produces full-color display effect.
And the general using colored filter carries out the organic electroluminescence display device of light color filtering, as shown in Figure 1, colored filter 10 mainly is to be provided with a black matrix" 13 (BlackMatrix) in a transparent substrates 11, and be provided with a chromatic filter layer 15 with light color filtering function in the part upper surface that part upper surface and this transparent substrates 11 of black matrix" 13 is not provided with black matrix" 13, include first chromatic photoresist (G) 151, second chromatic photoresist (B) 153 and the 3rd chromatic photoresist (R) 155.The top of black matrix" 13 and chromatic filter layer 15 can select to be provided with a planarization layer 17 (Over Coat, cover layer) or a barrier layer again, 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, operating current conducting by lower electrode 21 and 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, the action of a light color filtering will be carried out respectively, and become green (G), blue (B), red (R) three primary colors L1, L2, L3, and by the purpose of this matched combined with the 200 full-color demonstrations of realization organic electric-excitation luminescent demonstration (OLED) device.
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 device, therefore also only need a less evaporation process to get final product, can effectively reduce the evaporation number of times of organic light-emitting units 23, and the accurate contraposition degree of difficulty when reducing evaporation relatively.Yet, because the wave spread of this white light source S is wider, make white light source S not high, and then influence the luminosity and the photochromic saturation of this OLED device 200, also just therefore can't effectively improve its luminescent quality the light source penetrance of chromatic filter layer 15.
Summary of the invention
Technical problem to be solved by this invention, organic electroluminescence display device that provides a kind of novelty and preparation method thereof is provided, difficulty in the time of not only can effectively reducing the step of manufacturing and reduce contraposition, to improve product percent of pass, the effect that improves its light source penetrance and photochromic saturation be can have again concurrently, the loss and the useful life that prolongs device of luminous power more can be reduced.
Main purpose of the present invention, be to provide a kind of whole colour organic electroluminous display device of low power consumption, can be by the evaporate process of less number of times to realize the display effect of full-colorization, not only can simplify the making flow process, the difficulty of the accurate contraposition in the time of can being reduced in evaporation relatively again, and therefore effectively improve product percent of pass.
Secondary objective of the present invention, be to provide a kind of whole colour organic electroluminous display device of low power consumption, be not only applicable to the passive type organic electroluminescence display device, also can be applicable to the active organic electroluminescent display unit, and the loss that realizes reducing the difficulty of contraposition and evaporation and reduce cost of manufacture.
Another purpose of the present invention, be to provide a kind of whole colour organic electroluminous display device of low power consumption, because it is preferable by the performance of the color under the colored filter alignment, more convenient and easy in the glow color adjustment, can be because of the decay of luminescence inequality of red, blue, green (side by side) three coloured light, and therefore problem such as cause that colour cast and color saturation are performed poor can effectively keep its color representation.
Another purpose of the present invention, be to provide a kind of whole colour organic electroluminous display device of low power consumption, not only can simplify the difficulty when making flow process and reducing accurate contraposition, can effectively improve the light source penetrance and the color saturation of organic light-emitting units again, and then the loss of reduction luminous power, the useful life of prolongation device.
For achieving the above object, the invention provides a kind of whole colour organic electroluminous display device of low power consumption, it is mainly constructed and comprises: a colored filter, and mainly the part surface in a transparent substrates is provided with one first chromatic photoresist, one second chromatic photoresist and one the 3rd chromatic photoresist; One bottom electrode is arranged at the part surface of colored filter; One first organic light-emitting units is arranged at the lower electrode surface of the first chromatic photoresist vertical extent position; One having ideals, morality, culture, and discipline machine luminescence unit is arranged at the lower electrode surface of second chromatic photoresist and the 3rd chromatic photoresist vertical extent position; Reach a subtend electrode, be arranged at the part surface of first organic light-emitting units and having ideals, morality, culture, and discipline machine luminescence unit.
Description of drawings
Fig. 1 is the generalized section of organic electroluminescence display device commonly used.
Fig. 2 is the generalized section of organic electroluminescence display device one preferred embodiment of the present invention.
Fig. 3 is the generalized section of further embodiment of this 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 generalized section of active organic electroluminescent display unit of the present invention.
Fig. 7 is the generalized section of further embodiment of this invention.
Wherein, Reference numeral:
10 colored filters, 11 transparent substrates
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 colored filters, 31 transparent substrates
32 substrates, 33 black matrix"s
35 chromatic filter layers, 351 first chromatic photoresists
353 second chromatic photoresists 355 the 3rd chromatic photoresist
37 smooth blocking unit 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, 433 second organic luminous layers
434 hole injection layers 435 the 3rd organic luminous layer
436 hole transmission layers, 437 having ideals, morality, culture, and discipline machine luminescence units
4371 having ideals, morality, culture, and discipline machine luminescent layers, 438 electron transfer layers
439 electron injecting layers, 45 counter electrodes
50 colored filters, 51 transparent substrates
53 thin-film transistors, 54 insulating barriers
551 first chromatic photoresists, 553 second chromatic photoresists
555 the 3rd chromatic photoresists, 61 lower electrodes
631 first organic light-emitting units, 637 having ideals, morality, culture, and discipline machine luminescence units
65 counter electrodes
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, show as follows with preferred embodiment and accompanying drawing detailed description:
At first, see also Fig. 2, it is the generalized section of a preferred embodiment of the present invention; As shown in the figure, organic electric-excitation luminescent of the present invention (OLED) display unit 400, mainly the part upper surface in a colored filter 30 is provided with at least one organic electric-excitation luminescent (OLED) device 40.Wherein, this colored filter 30 mainly is provided with at least one black matrix" 33 (Black Matrix) in the part upper surface of a transparent substrates 31, and having additional a chromatic filter layer (or claiming chromatic photoresist) 35 with light color filtering function in the part upper surface that part upper surface and this transparent substrates 31 of black matrix" 33 is not provided with black matrix" 33, it mainly includes one first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355.Can be coated with a smooth blocking unit 37 on black matrix" 33 and chromatic filter layer 35, for example a planarization layer (overcoat), a barrier layer (barrier layer) or both all can adopt.
Part upper surface in this colored filter 30 is provided with a bottom electrode 41, and the vertical extent position of first chromatic photoresist 351 is provided with this first organic light-emitting units 431, then be provided with this having ideals, morality, culture, and discipline machine luminescence unit 437 on the vertical extent position of second chromatic photoresist 353 and the 3rd chromatic photoresist 355, when supply between bottom electrode 41 and the counter electrode 45 has an operating current, first organic light-emitting units 431 can produce one first light source S1, and having ideals, morality, culture, and discipline machine luminescence unit 437 can produce one the 4th light source S4.
By this, the first light source S1 that this first organic light-emitting units 431 is produced is with penetrable this first chromatic photoresist 351, and filtration produces one first coloured light L1, and the 4th light source S4 that having ideals, morality, culture, and discipline machine luminescence unit 437 is produced will penetrate second chromatic photoresist 353 and the 3rd chromatic photoresist 355 respectively, wherein the 4th light source S4 is after penetrating second chromatic photoresist 353 and the 3rd chromatic photoresist 355, to filter and produce corresponding second coloured light L2 and the 3rd coloured light L3, by the first coloured light L1, the matched combined of the second coloured light L2 and the 3rd coloured light L3 will realize the purpose of these OLED display unit 400 full-color demonstrations.
In an embodiment of the present invention, the first light source S1 that this first organic light-emitting units 431 is produced is a blue-light source, and the 4th light source S4 that having ideals, morality, culture, and discipline machine luminescence unit 437 is produced then may be selected to be the complementary light source that a white light source or the one and first light source S1 present complementary characteristic.For example, yellow light sources or orange light source.And this first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355 are respectively a blue photoresistance B (351), green photoresistance G (353) and red photoresistance R (355) or are a blue photoresistance B (351), red photoresistance R (353) and green photoresistance G (355).Therefore, the first light source S1 (blue light) is after the filtration via first chromatic photoresist (blue photoresistance) 351, to produce one first coloured light L1 (blue light), and the 4th light source S4 (orange light) will be filtered respectively after penetrating second chromatic photoresist (green photoresistance) the 353 and the 3rd chromatic photoresist (red photoresistance) 355 and become one second coloured light L2 (green glow) and one the 3rd coloured light L3 (ruddiness), by the first coloured light L1 (blue light), the second coloured light L2 (green glow) and the complementarity of the 3rd coloured light L3 (ruddiness) and the matched combined of proper proportion just can realize the purpose of these OLED display unit 400 full-colorization demonstrations.
Certainly, in further embodiment of this invention, the first light source S1 that this first organic light-emitting units 431 is produced also can be a red light source, the 4th light source S4 that having ideals, morality, culture, and discipline machine luminescence unit 437 is produced then can be a blue-green light source or a white light source, first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355 will be respectively a red photoresistance, a green photoresistance and a blue photoresistance at this moment, or be a red photoresistance, a blue photoresistance and a green photoresistance, so can realize the purpose of OLED display unit 400 full-colorization demonstrations equally.
Chromatic filter layer 35 is one only to allow the device that particular range of wavelengths is passed through with interior light source, and reaches the purpose of light color filtering by this.For example, this first chromatic photoresist 351 only can allow that the light source of wave-length coverage between 400nm~500nm passes through if be designed to one, then expression is after the backlight that just like common constitution is white light source S is penetrating this first chromatic photoresist 351, first chromatic photoresist 351 can be filtered obstruct in other color light source beyond 400nm~500nm with wave-length coverage, and can not allow it pass through, making will be between 400nm~500nm by the coloured light wave-length coverage of this first chromatic photoresist 351, the sensitive blue-light source of naked eyes just is by this to reach the purpose of light color filtering.Yet in light color filtering, the color light source of wavelength beyond 400nm~500nm will be filtered by first chromatic photoresist 351 and be intercepted, therefore, first chromatic photoresist 351 will not have good light source penetrance to white light source S, be approximately 25%, therefore also will reduce its luminous intensity relatively.
Otherwise,, represent that then this first chromatic photoresist 351 has quite good light source penetrance to the first light source S1 if when the wave spread of this first light source S1 is positioned in the wave-length coverage that first chromatic photoresist, 351 allowed coloured light penetrate.For example, when the wave spread of this first light source S1 is 420nm~470nm (blue-light source), and the wave-length coverage that these first chromatic photoresist, 351 allowed coloured light pass through says it is when 400nm~500nm (blue photoresistance) as described above, and then the Jue Daduoshuo first light source S1 can penetrate this first chromatic photoresist 351 fully.For example in an embodiment of the present invention, its light source penetrance can reach more than 80%.Therefore with respect to common with the OLED device (200) of white light source L as backlight, the present invention will have performance preferable light source penetrance and luminous intensity, also just can reduce the loss of power supply and the useful life of prolongation device certainly relatively.
The 4th light source S4 is an orange light source, and when second chromatic photoresist 353 of being arranged in pairs or groups and the 3rd chromatic photoresist 355 are respectively a green photoresistance and a red photoresistance, because, the 4th light source S4 (orange light source) is mainly mixed by the green light source and the red light source of proper proportion, therefore, the 4th light source S4 (orange light source) is after penetrating second chromatic photoresist (green photoresistance) the 353 and the 3rd chromatic photoresist (red photoresistance) 355, the red light source and the green light source of the 4th light source S4 (orange light source) be will filter and intercept respectively, and this second coloured light L2 (green light source) and the 3rd coloured light L3 (red light source) produced respectively.At this moment, this second chromatic photoresist 353 and the 3rd chromatic photoresist 355 also have higher light source penetrance than OLED device (200) commonly used to the 4th light source S4, for example more than 40%.
Therefore, use by OLED display unit 400 of the present invention, this first light source S1 and the 4th light source S4 light source penetrance be can increase, and light source penetrance, luminous intensity, the photochromic saturation that improves this OLED display unit 400, the purpose that prolongs the device useful life and the reduction loss of power reached chromatic filter layer 35.
See also Fig. 3, it is the generalized section of the another embodiment of whole colour organic electroluminous display device of low power consumption of the present invention; As shown in the figure, organic electric-excitation luminescent of the present invention (OLED) display unit 401 mainly is provided with at least one organic electric-excitation luminescent (OLED) device 40 in the upper surface of a colored filter 30.Wherein, this first organic light-emitting units 431 is arranged at the vertical extent position of this first chromatic photoresist 351, and having ideals, morality, culture, and discipline machine luminescence unit 437 then is arranged at the vertical extent position of second chromatic photoresist 353 and the 3rd chromatic photoresist 355.This first organic light-emitting units 431 or having ideals, morality, culture, and discipline machine luminescence unit 437 can be the organic luminous layer of an individual layer or the organic luminous layer of multilayer.For example, this first organic light-emitting units 431 includes one first organic luminous layer 4311, and the having ideals, morality, culture, and discipline machine luminescent layer 4371 of this having ideals, morality, culture, and discipline machine luminescence unit 437 then includes second organic luminous layer 433 and the 3rd organic luminous layer 435 with the overlapped way setting.
This first organic light-emitting units 431 or having ideals, morality, culture, and discipline machine luminescence unit 437 can select to include a hole injection layer 434 (HIL), a hole transmission layer 436 (HTL), an organic luminous layer, an electron transfer layer 438 (ETL) and electron injecting layer 439 (EIL).For example, can be provided with hole injection layer 434 and hole transmission layer 436 in the upper surface of this lower electrode 41 in regular turn, upper surface in this hole injection layer 436 is provided with this first organic light-emitting units 431 and having ideals, morality, culture, and discipline machine luminescence unit 437 again, and is provided with this electron transfer layer 438 and electron injecting layer 439 in regular turn in the upper surface of this first organic light-emitting units 431 and having ideals, morality, culture, and discipline machine luminescence unit 437.
See also Fig. 4, it is the generalized section of whole colour organic electroluminous display device one preferred embodiment of low power consumption of the present invention; As shown in the figure; organic electric-excitation luminescent of the present invention (OLED) display unit 403 mainly is provided with at least one organic electric-excitation luminescent (OLED) device 40 in the part upper surface of a substrate 32; the part upper surface that this substrate 32 is not provided with OLED device 40 then is provided with an encapsulation cover plate 39 (also can be an over cap); and carry out a complete coating with 39 pairs of these OLED devices 40 of this encapsulation cover plate, reach the purpose of this OLED device 40 of protection.Wherein, the part bottom of this encapsulation cover plate 39 is provided with at least one black matrix" 33, and having additional a chromatic filter layer (or claiming chromatic photoresist) 35 with light color filtering function in the part surface that part upper surface and this encapsulation cover plate 39 of black matrix" 33 is not provided with black matrix" 33, it mainly includes one first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355.
One single pixel (pixel) inside of this OLED display unit 403 comprises one first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355, and first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355 all lay respectively on the sub-pixel (sub pixel) in this single pixel.Wherein, but this first chromatic photoresist 351, second chromatic photoresist 353 and the 3rd chromatic photoresist 355 the position change is set.For example, this first chromatic photoresist 351 can be arranged at the position of dual-side sub-pixel, as shown in Figure 3, also can be arranged at the position of intermediate sub-pixels, as shown in Figure 4.Wherein, this first organic light-emitting units 431 and having ideals, morality, culture, and discipline machine luminescence unit 437 can be adjusted along with the change that the position is set of chromatic photoresist.
First organic light-emitting units 431 or having ideals, morality, culture, and discipline machine luminescence unit 437 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 light-emitting units, can arrange in pairs or groups equally produces light source of the same colour.
See also Fig. 5, it is the generalized section of further embodiment of this invention; As shown in the figure, organic electric-excitation luminescent of the present invention (OLED) display unit 405, mainly the upper surface in a colored filter 30 is provided with at least one OLED device 40.Wherein, this first organic light-emitting units 431 is arranged at the vertical extent position of first chromatic photoresist 351, and this having ideals, morality, culture, and discipline machine luminescence unit 437 then is arranged at the vertical extent position of second chromatic photoresist 353 and the 3rd chromatic photoresist 355.Can carry out the adjustment of the active area of first organic light-emitting units 431 and each chromatic photoresist according to the difference of the luminous efficiency of first organic light-emitting units 431 and having ideals, morality, culture, and discipline machine luminescence unit 437.
In one embodiment of the invention, when first organic light-emitting units 431 is one when with respect to having ideals, morality, culture, and discipline machine luminescence unit 437 organic light-emitting units of higher photoluminescence efficiency being arranged, for example can produce the organic light-emitting units 431 of green light source, then the active area of the organic luminous layer of this first organic light-emitting units 431 can dwindle relatively.For example the active area A of the organic luminous layer of first organic light-emitting units 431 can be less than the active area A1 of this first chromatic photoresist 351, to allow relatively that by this first organic light-emitting units 431 has bigger formation error range, and help the contraposition of organic luminous layer of this first organic light-emitting units 431 and the carrying out of evaporation or mask steps, and can keep the balance of intensity and decay between these OLED display unit 405 each coloured light.
When first organic light-emitting units 431 has preferable luminous efficiency, the active area A1 of first chromatic photoresist 351 of these first organic light-emitting units, 431 belows can be adjusted.For example, can make the active area A1 of this first chromatic photoresist 351 area A 2 and A3 be set less than second chromatic photoresist 353 or the 3rd chromatic photoresist 355.
See also Fig. 6, it is the generalized section of further embodiment of this invention; As shown in the figure, organic electric-excitation luminescent of the present invention (OLED) display unit 601 can be designed to one active (Active Drive) organic electroluminescence display device, mainly the part upper surface in a transparent substrates 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 transparent substrates 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 and the 3rd chromatic photoresist 555.Part upper surface in this insulating barrier 54 is provided with at least one lower electrode 61, and this lower electrode 61 can be electrically connected with corresponding thin-film transistor 53 respectively.
Be provided with first organic light-emitting units 631 that can produce the first light source S1 in the upper surface of the lower electrode 61 of the vertical extent position of first chromatic photoresist 551, and lower electrode 61 upper surfaces in the vertical extent position of this second chromatic photoresist 553 and the 3rd chromatic photoresist 555 are provided with a having ideals, morality, culture, and discipline machine luminescence unit 637 that can produce the 4th light source S4, wherein, this first organic light-emitting units 631 is arranged at the upper surface of part lower electrode 61, having ideals, morality, culture, and discipline machine luminescence unit 637 then is arranged at lower electrode 61 upper surfaces that are not provided with first organic light-emitting units 631, and be provided with at least one counter electrode 65 in the part upper surface of this first organic light-emitting units 631 and having ideals, morality, culture, and discipline machine luminescence unit 637, by this to form the active organic electroluminescent display unit of a COA (colorfilter on array).
At last, see also Fig. 7, it is the generalized section of further embodiment of this invention; As shown in the figure, with respect to embodiment illustrated in fig. 6, in the present embodiment, active organic electroluminescent (OLED) display unit 603 is mainly with first chromatic photoresist 551, second chromatic photoresist 553 and the 3rd chromatic photoresist 555 are arranged at the surface of this transparent substrates 51, to form a colored filter 50, and be provided with this thin-film transistor 53 in the part surface of this colored filter 50, the upper surface of the lower electrode 61 of first chromatic photoresist, 551 vertical extent positions is provided with one first organic light-emitting units 631, the upper surface of the lower electrode 61 of second chromatic photoresist 553 and the 3rd chromatic photoresist 555 vertical extent positions then is provided with this having ideals, morality, culture, and discipline machine luminescence unit 637, by this, can this first chromatic photoresist 551, second chromatic photoresist 553 and the 3rd chromatic photoresist 555 carry out the light color filtering of the first light source S1 and the 4th light source S4 and realize the purpose of these active OLED display unit 603 full-color demonstrations, wherein, the having ideals, morality, culture, and discipline machine luminescent layer of this having ideals, morality, culture, and discipline machine luminescence unit 637 is one can produce the organic luminous layer of the 4th light source S4, and by this to form the structure of an AOC (array on colorfilter).
In further embodiment of this invention, can have additional an encapsulation cover plate (not shown) in the part upper surface of this transparent substrates 51, and be provided with this first chromatic photoresist 551, second chromatic photoresist 553 and the 3rd chromatic photoresist 555 in the bottom of this encapsulation cover plate, can reach the purpose of this active OLED display unit top light emitting by this.
In sum, the present invention relates to a kind of organic electroluminescence display device, especially refer to whole colour organic electroluminous display device of a kind of low power consumption and preparation method thereof, not only can effectively improve light source penetrance and color saturation, the loss that also can effectively reduce power supply with prolong device useful life.
The above person, it only is preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, promptly all equalizations of doing according to the described shape of the present patent application claim, structure, feature and spirit change and modify, and all should be included within the scope of the invention.

Claims (19)

1, a kind of whole colour organic electroluminous display device of low power consumption is characterized in that, includes:
One colored filter, mainly the part surface in a transparent substrates is provided with one first chromatic photoresist, one second chromatic photoresist and one the 3rd chromatic photoresist;
One bottom electrode is arranged at the part surface of this colored filter;
One first organic light-emitting units is arranged at the lower electrode surface of this first chromatic photoresist vertical extent position;
One having ideals, morality, culture, and discipline machine luminescence unit is arranged at the lower electrode surface of this second chromatic photoresist and the 3rd chromatic photoresist vertical extent position;
One subtend electrode is arranged at the part surface of this first organic light-emitting units and this having ideals, morality, culture, and discipline machine luminescence unit.
2, whole colour organic electroluminous display device as claimed in claim 1, it is characterized in that, the part surface of this transparent substrates can have additional an encapsulation cover plate, and be provided with corresponding first chromatic photoresist, second chromatic photoresist and the 3rd chromatic photoresist in the bottom of this encapsulation cover plate, make it to become a two-sided luminous organic electroluminescence display device.
3, whole colour organic electroluminous display device as claimed in claim 2 is characterized in that, this colored filter can be set at a substrate, makes it to become the organic electroluminescence display device of a top light emitting
4, whole colour organic electroluminous display device as claimed in claim 3, wherein this encapsulation cover plate also can be a protective layer.
5, whole colour organic electroluminous display device as claimed in claim 1, it is characterized in that, this colored filter can be set at a transparent substrates, and in the part table of this transparent substrates and be provided with at least one thin-film transistor, and the part surface of this thin-film transistor and this transparent substrates is provided with an insulating barrier and lower electrode in regular turn.First chromatic photoresist, second chromatic photoresist and the 3rd chromatic photoresist are arranged at this insulating barrier inside, make it to become an active organic electroluminescent display unit.
6, whole colour organic electroluminous display device as claimed in claim 5, it is characterized in that, the part surface of this transparent substrates is provided with an encapsulation cover plate, and be provided with one first chromatic photoresist, one second chromatic photoresist and one the 3rd chromatic photoresist in the bottom of this encapsulation cover plate, make it to become a two-way luminous active organic electroluminescent display unit.
7, whole colour organic electroluminous display device as claimed in claim 1, it is characterized in that, the part surface of this colored filter is provided with at least one thin-film transistor, and be provided with an insulating barrier and at least one lower electrode in regular turn in the part surface of this thin-film transistor and colored filter, make it to become an active organic electroluminescent display unit.
8, whole colour organic electroluminous display device as claimed in claim 7, it is characterized in that, the part surface of this transparent substrates is provided with an encapsulation cover plate, and be provided with one first chromatic photoresist, one second chromatic photoresist and one the 3rd chromatic photoresist, and make it to become a two-way luminous active organic electroluminescent display unit in the bottom of this encapsulation cover plate.
9, whole colour organic electroluminous display device as claimed in claim 1 is characterized in that, the luminous efficiency of this first organic light-emitting units is greater than the luminous efficiency of this having ideals, morality, culture, and discipline machine luminescence unit.
10, whole colour organic electroluminous display device as claimed in claim 9 is characterized in that, the active area of this first organic light-emitting units is less than the active area of first chromatic photoresist.
11, whole colour organic electroluminous display device as claimed in claim 9 is characterized in that, the active area of this first chromatic photoresist is less than one of them active area of second chromatic photoresist, the 3rd chromatic photoresist.
12, whole colour organic electroluminous display device as claimed in claim 1 is characterized in that, this first organic light-emitting units and this first chromatic photoresist can select to be arranged at dual-side sub-pixel in the pixel and one of them of an intermediate sub-pixels.
13, whole colour organic electroluminous display device as claimed in claim 1, it is characterized in that, this first organic bill unit, having ideals, morality, culture, and discipline machine luminescence unit and knockdown one of them may be selected to be an individual layer organic light-emitting units, folded one of them of establishing a type organic light-emitting units and a doping type organic light-emitting units of multilayer constitutes.
14, whole colour organic electroluminous display device as claimed in claim 1 is characterized in that, this having ideals, morality, culture, and discipline machine luminescence unit inside includes folded one second organic luminous layer and the 3rd organic luminous layer of establishing.
15, whole colour organic electroluminous display device as claimed in claim 1, it is characterized in that, this first organic light-emitting units and having ideals, morality, culture, and discipline machine luminescence unit 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.
16, whole colour organic electroluminous display device as claimed in claim 1, it is characterized in that, this first organic light-emitting units and having ideals, morality, culture, and discipline machine luminescence unit can produce one first light source and one the 4th light source respectively, wherein, this first light source becomes filtration one first coloured light after penetrating first chromatic photoresist, and the 4th light source becomes corresponding one second coloured light and one the 3rd coloured light with filtration after penetrating second chromatic photoresist and the 3rd chromatic photoresist.
17, whole colour organic electroluminous display device as claimed in claim 16 is characterized in that, this first light source be green glow the 4th light source then may be selected to be a white light, a purple light and a red purple light wherein it
18, whole colour organic electroluminous display device as claimed in claim 15 is characterized in that, this first light source and the 4th light source phase be the complementary light source each other.
19, whole colour organic electroluminous display device as claimed in claim 1 is characterized in that, this colored filter also include at least one black matrix", at least one planarization layer, at least one barrier layer and knockdown one of them.
CN 200510092874 2005-08-23 2005-08-23 Low power color organic electro-luminescence display device Pending CN1731905A (en)

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* Cited by examiner, † Cited by third party
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CN103456764A (en) * 2013-09-09 2013-12-18 京东方科技集团股份有限公司 OLED array substrate, manufacturing method thereof and display device
CN103645581A (en) * 2013-11-18 2014-03-19 上海和辉光电有限公司 Display panel and manufacturing method thereof
CN104183706A (en) * 2013-05-21 2014-12-03 海洋王照明科技股份有限公司 Organic electroluminescent device and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104183706A (en) * 2013-05-21 2014-12-03 海洋王照明科技股份有限公司 Organic electroluminescent device and preparation method thereof
CN103456764A (en) * 2013-09-09 2013-12-18 京东方科技集团股份有限公司 OLED array substrate, manufacturing method thereof and display device
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
US9543368B2 (en) 2013-09-09 2017-01-10 Boe Technology Group Co., Ltd. OLED array substrate having black matrix, manufacturing method and display device thereof
CN103645581A (en) * 2013-11-18 2014-03-19 上海和辉光电有限公司 Display panel and manufacturing method thereof

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