CN101533850B - Organic light emitting diode display device and display system thereof - Google Patents
Organic light emitting diode display device and display system thereof Download PDFInfo
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- CN101533850B CN101533850B CN2008100817835A CN200810081783A CN101533850B CN 101533850 B CN101533850 B CN 101533850B CN 2008100817835 A CN2008100817835 A CN 2008100817835A CN 200810081783 A CN200810081783 A CN 200810081783A CN 101533850 B CN101533850 B CN 101533850B
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Abstract
The invention provides an organic light emitting diode display device and a display system thereof, and the organic light emitting diode display device leads a plurality of electric excitation light units to be arranged between a light reflecting layer with an unthreaded hole array and a lenticule array, and forms a light absorbing layer on a surface of the light reflecting layer with the unthreaded hole array which is opposite to the electric excitation light units. Through the lenticule array, the organic light emitting diode display device and the display system thereof lead ambient lights which enter a display area of the display device to be focused into the unthreaded holes of the unthreaded hole array and then projected onto the light absorbing layer, thus eliminating the ambient lights and consequently raising the contrast ratio of the display device.
Description
Technical field
The present invention is about a kind of organic LED display device and display system thereof.
Background technology
For organic LED display device; The problem of its surround lighting has bad influence for visual effect; And the existing design of eliminating for surround lighting depends on increase by one light absorbing zone in display unit; Can reduce its reflection after making surround lighting be incident to this display unit inside, increase the contrast of display unit.This method no doubt can be eliminated component environment light, but also relatively eliminates the self-luminous of part Organic Light Emitting Diode, and also not obvious for the change of display unit contrast, it is limited to improve visual effect.
See also Fig. 5 A; Fig. 5 A is the schematic cross-section of an existing luminous supine organic LED display device, and it comprises that a bottom substrate 501, a light absorbing zone 502 are positioned on this bottom substrate 501, a reflection electrode layer 503 is positioned at these light absorbing zone 502 tops, an organic luminous layer 504 is positioned at these reflection electrode layer 503 tops, a transparent electrode layer 505 and a top transparent substrates 506.This transparent electrode layer 505 is positioned at this top transparent substrates 506 belows.When surround lighting was incident to this display unit inside from the top, surround lighting partly can penetrate this reflection electrode layer 503 and absorbed by this light absorbing zone 502, made the surround lighting minimizing of the original incident of reflected ambient.
See also Fig. 5 B; Fig. 5 B is the schematic cross-section of existing luminous ventricumbent organic LED display device, and it comprises that a bottom transparent substrates 511, a transparent electrode layer 512 are positioned at that these bottom transparent substrates 511 tops, an organic luminous layer 513 are positioned at these transparent electrode layer 512 tops, a reflection electrode layer 514 is positioned at these organic luminous layer 513 tops, a light absorbing zone 515 and a head substrate 516.This light absorbing zone 515 is positioned at this head substrate 516 belows.When surround lighting was incident to this display unit inside from the bottom, surround lighting partly can penetrate this reflection electrode layer 514 and absorbed by this light absorbing zone 515, made the surround lighting minimizing of the original incident of reflected ambient.
Just as above-mentioned, but the surround lighting of this light absorbing zone 502 or 515 absorption portion incidents, but it also can absorb the part self-luminous that organic luminous layer 504 or 513 is sent, and reduce the luminous efficiency of organic luminous layer 504 or 513.Even if this light absorbing zone 502 or 515 can reduce the influence of surround lighting, but it relatively absorbs organic luminous layer 504 or 513 partly self-luminouss, and is also not obvious for the raising of this display unit contrast, can't effectively improve its visual effect.
Summary of the invention
The object of the present invention is to provide a kind of organic LED display device, its may command surround lighting incoming position is close to surround lighting to be incident to fully its inner light absorbing zone and is absorbed, and then improves the contrast of this display unit.
A kind of organic LED display device provided by the invention comprises one first substrate; One second substrate has a gap between this second substrate and this first substrate; One cushioned material layer is filled in the aforementioned gap; One light absorbing zone is formed at this second substrate on should a surface of first substrate; The reflection layer of one tool unthreaded hole array is positioned on the surface of relative this first substrate of this light absorbing zone, and the reflection layer of this tool unthreaded hole array has a plurality of unthreaded holes; A plurality of electroluminescence unit, the reflection layer that is positioned at this tool unthreaded hole array is a surface of this light absorbing zone relatively; One electrode layer is positioned on described these electroluminescence unit; And a microlens array has a plurality of lenticules, is positioned at this second substrate on should a surface of first substrate; Described a plurality of unthreaded holes of the reflection layer of described tool unthreaded hole array are one to one with described a plurality of lenticules of described microlens array and align, so that light is through described a plurality of lenticules and be focused in described a plurality of unthreaded hole.
On the one hand, the reflection layer of this tool unthreaded hole array of the organic light emitting diode display of the aforementioned tool surround lighting of the present invention delustring design has conductivity and this electrode layer is electrically opposite.
On the other hand, the aforementioned organic LED display device of the present invention more comprises electrically another electrode layer in contrast to this electrode layer between the reflection layer and described these electroluminescence unit of this tool unthreaded hole array.
The present invention also provides a kind of image display system, and described system can comprise: a display unit has described organic LED display device structure; And an input unit, couple described display unit, and through described input unit transmission signals to described display unit, to control described display unit show image.
The present invention can focus in the unthreaded hole of reflection layer of this tool unthreaded hole array being incident to the inner surround lighting of this display unit through this microlens array, and then is projected to this light absorbing zone and is absorbed, to eliminate surround lighting.
Description of drawings
Fig. 1 is the configuration calcspar of the present invention's one image display system;
Fig. 2 A is the light-emitting area of the present invention structural section sketch map of one first specific embodiment of organic LED display device up, wherein demonstrates surround lighting delustring mechanism;
Fig. 2 B is the light-emitting area of the present invention structural section sketch map of this first specific embodiment of organic LED display device up, wherein demonstrates this microlens array and can concentrate this display unit light emission direction;
Fig. 2 C is the schematic top view of reflection layer of this tool unthreaded hole array of the present invention's first specific embodiment;
Fig. 3 is the light-emitting area of the present invention structural section sketch map of one second specific embodiment of organic LED display device down, wherein demonstrates surround lighting delustring mechanism;
Fig. 4 be the present invention's first specific embodiment and existing display unit to the relative ambient light intensity graph of a relation of specific strength;
Fig. 5 A is the schematic cross-section of an existing luminous supine organic LED display device; And
Fig. 5 B is the schematic cross-section of existing luminous ventricumbent organic LED display device.
Drawing reference numeral:
10----image display system 516----head substrate
100----display floater 200----organic LED display device
201----upper substrate 202----microlens array
The 203----cushioned material layer 204----first conductive electrode layer
The 205----electroluminescence unit 206----second conductive electrode layer
The reflection layer 207a----unthreaded hole of 207----tool unthreaded hole array
208----light absorbing zone 209----infrabasal plate
300----input unit 301----upper substrate
The reflection layer of 302----light absorbing zone 303----tool unthreaded hole array
The 304----electroluminescence unit 305----first conductive clear electrode layer
306----cushioned material layer 307----microlens array
308----infrabasal plate 501----bottom substrate
502----light absorbing zone 503----reflection electrode layer
504----organic luminous layer 505----transparent electrode layer
506----top transparent substrates 511----bottom transparent substrates
512----transparent electrode layer 513----organic luminous layer
514----reflection electrode layer 515----light absorbing zone
Embodiment
Aforementioned purpose of the present invention or characteristic will specify according to accompanying drawing, and what only need understand is that accompanying drawing and the example of being lifted are just as explanation but not in restriction or shrinkage limit the present invention.
Though the present invention will consult the accompanying drawing that contains preferred embodiment of the present invention and fully describe,, this should be appreciated that the personage who is familiar with the one's own profession technology can revise invention described herein, obtains effect of the present invention simultaneously before describing.Therefore, Yan Weiyi discloses the description below needing to understand widely to being familiar with the technological personage of one's own profession, and its content does not lie in restriction the present invention.
For solving the disappearance of prior art; The present invention adds a microlens array and reflection electrode layer is changed into the reflection electrode layer of (pinhole) array that has unthreaded hole in organic LED display device; Controling environment by this can be near fully being absorbed by the inner light absorbing zone of this display unit, to eliminate the adverse effect that surround lighting was caused after the light incident.
See also Fig. 2 A, Fig. 2 A is one first a specific embodiment cross section structure sketch map of organic LED display device of the present invention, and the light-emitting area of this organic LED display device up.Fig. 2 A only demonstrates this display unit part cross section structure of a corresponding Organic Light Emitting Diode unit.According to the present invention's first specific embodiment, this organic LED display device comprises reflection layer 207, a light absorbing zone 208 and an infrabasal plate 209 of a upper substrate 201, a microlens array 202, a cushioned material layer 203, one first conductive electrode layer 204, a plurality of electroluminescence unit 205, one second conductive electrode layer 206, a tool unthreaded hole array from top to bottom.Have a gap between this infrabasal plate 209 and this upper substrate 201, and this upper substrate 201 can be a glass substrate or a colored filter.This cushioned material layer 203 is filled in the aforementioned gap, and the material of this cushioned material layer 203 can be acrylic resin, epoxy resin or silicon.This microlens array 202 is positioned at this upper substrate 201 belows, and each this Organic Light Emitting Diode unit comprises a plurality of lenticules.The refraction coefficient of this microlens array 202 is greater than the refraction coefficient of this cushioned material layer 203.The refraction coefficient scope of this microlens array 202 is 1.65 to 2.0, and the refraction coefficient scope of this cushioned material layer 203 is 1.5 to 1.6.
This first conductive electrode layer 204 has light transmission and is positioned at described these 205 tops, electroluminescence unit, and this first conductive electrode layer 204 can be negative electrode layer or anode electrode layer.This light absorbing zone 208 is positioned at this infrabasal plate 209 tops, and the material of this light absorbing zone 208 can be black resin or molybdenum oxide (MOx).The reflection layer 207 of this tool unthreaded hole array is positioned at this light absorbing zone 208 tops; The reflection layer 207 of this tool unthreaded hole array can tool second conductivity or non-conductive; When the reflection layer 207 of this tool unthreaded hole array is a conductivity, then can omit this second conductive electrode layer 206.And described these unthreaded holes of this unthreaded hole array and described these lenticules of this microlens array 202 are pairing one to one, promptly are alignment one to one, so that light is focused in described these unthreaded holes through described these lenticules.The reflection layer 207 of this tool unthreaded hole array can be the aluminum metal layer or niobium aluminium (AlNd) layer of tool second conductivity.
Fig. 2 C is the schematic top view of the reflection layer 207 of this tool unthreaded hole array, and this unthreaded hole array is made up of a plurality of unthreaded hole 207a.It for example is tin indium oxide (ITO) electrode layer that this second conductive electrode layer 206 has light transmission, and it is positioned at reflection layer 207 tops of this tool unthreaded hole array.Described these electroluminescence unit 205 are positioned at this second conductive electrode layer, 206 tops.
Join again shown in Fig. 2 A; When surround lighting is incident to this display unit inside from the top, for making surround lighting through being focused to behind each this lenticule among the corresponding aforementioned unthreaded hole 207a, preferably; Each this lenticular diameter is 2～5 microns (μ m) and highly be 5～6 microns; Each this unthreaded hole 207a diameter is 3 microns, and this gap length between this upper substrate 201 and this infrabasal plate 209 is preferable in each this lenticule focal range, and this gap length is preferably 7～10 microns.Just as above-mentioned, the surround lighting of incident can be incident upon via the focusing of this microlens array 203 among described these unthreaded holes 207a, and is almost completely absorbed by this light absorbing zone 208, reaches the effect of eliminating surround lighting, and can improve the contrast of this display unit.
Fig. 2 B can also make the upwards self-luminous light emission direction of described these electroluminescence unit 205 concentrate in order to this inner microlens array 203 of this organic LED display device to be described; To increase the luminous intensity of described these electroluminescence unit 205, further improve the contrast of this display unit.
See also Fig. 3, Fig. 3 is one second a specific embodiment cross section structure sketch map of organic LED display device of the present invention, and the light-emitting area of this organic LED display device down.Fig. 3 only demonstrates this display unit part cross section structure of a corresponding Organic Light Emitting Diode unit.According to the present invention's second specific embodiment, the organic LED display device of this tool surround lighting delustring design comprises a upper substrate 301, a light absorbing zone 302, the reflection layer 303 of a tool unthreaded hole array, a plurality of electroluminescence unit 304, one first conductive clear electrode layer 305, a cushioned material layer 306, a microlens array 307 and an infrabasal plate 308 from top to bottom.Have a gap between this upper substrate 301 and this infrabasal plate 308, and this infrabasal plate 308 can be a glass substrate or a colored filter.This cushioned material layer 306 is filled in the aforementioned gap, and the material of this cushioned material layer 306 can be acrylic resin, epoxy resin or silicon.This light absorbing zone 302 is positioned at this upper substrate 301 belows, and the material of this light absorbing zone 302 can be black resin or molybdenum oxide (MO
x).The reflection layer 303 of this tool unthreaded hole array is positioned at this light absorbing zone 302 belows; Described these unthreaded holes of this unthreaded hole array and described these lenticules of this microlens array 307 are pairing one to one; Promptly be alignment one to one, so that light is focused in described these unthreaded holes through described these lenticules.Described these electroluminescence unit 304 for example Organic Light Emitting Diode unit are positioned at the anti-reflection electrode layer of light first conductivity 303 belows of this tool unthreaded hole array.The material of the reflection layer 303 of this tool unthreaded hole array can be aluminum metal or niobium aluminium (AlNd), and it can be anode electrode layer or negative electrode layer.This first conductive clear electrode layer 305 is positioned at described these 304 belows, electroluminescence unit, and this microlens array 307 is positioned at this infrabasal plate 308 tops, and each this electroluminescence unit comprises a plurality of lenticules.The refraction coefficient of this microlens array 307 is greater than the refraction coefficient of this cushioned material layer 306.The refraction coefficient scope of this microlens array 202 is 1.65 to 2.0, and the refraction coefficient scope of this cushioned material layer 203 is 1.5 to 1.6.
When surround lighting is incident to this display unit inside from the bottom; For making surround lighting through being focused to behind each this lenticule in the corresponding aforementioned unthreaded hole; Preferably, each this lenticular diameter is 2～5 microns (μ m) and highly be 5～6 microns, and each this unthreaded hole diameter is 3 microns; And this upper substrate 301 and this infrabasal plate 308 between this gap length preferable in each this lenticule focal range, this gap length is preferably 7～10 microns.Just as above-mentioned, the surround lighting of incident can be incident upon via the focusing of this microlens array 307 in described these unthreaded holes, and is almost completely absorbed by this light absorbing zone 302, reaches the effect of eliminating surround lighting, and can improve the contrast of this display unit.As Fig. 2 B, present embodiment can also make the downward self-luminous light emission direction of described these electroluminescence unit 304 concentrate, and to increase the luminous intensity of described these electroluminescence unit 304, further improves the contrast of this display unit.
See also Fig. 4; Fig. 4 be the present invention's first specific embodiment and existing display unit to the relative ambient light intensity graph of a relation of specific strength; Can see obviously that the present invention and general prior art are under same environmental light brightness; The present invention is resulting luminous high to the general prior art of specific strength, and obvious the present invention is general, and prior art has better visual effect.
Can know by the above; The present invention has increased by a microlens array and has formed the unthreaded hole array in existing reflection electrode layer; Surround lighting with may command incident makes its advantage that can accurately get into the unthreaded hole of this reflection electrode layer, reaches to eliminate surround lighting and increase luminous effect to specific strength.Moreover the present invention further can make described these electroluminescence unit concentrate its light light emission direction towards the light-emitting area emission via this microlens array, and increases the luminous intensity of this display unit, further improves luminous to specific strength.
Please with reference to Fig. 1, show the configuration schematic diagram that comprises the image display system 10 of organic LED display device of the present invention, wherein this image display system 10 that comprises organic LED display device comprises a display floater 100.This display floater 100 has organic LED display device 200 of the present invention, and this display floater 100 can for example be an organic LED display panel.
In general, this image display system 10 comprises a display floater 100 and an input unit 300, couples with this display floater 100, and wherein these input unit 300 transmission signals are to this display floater 100, so that these display floater 100 show images.This image display system 10 can be contained in a mobile phone, a digital camera, a PDA (personal digital assistant), a mobile computer, a desktop PC, a TV, an automobile-used display, a global positioning system (GPS), an aviation with display, a digital frame (digital photo frame) or a Portable DVD projector.
After specifying preferred embodiment of the present invention; Being familiar with this technological personage can clearly understand; Can carry out various variations and change not breaking away under following claim scope and the spirit, and the present invention also is not subject to the execution mode of the embodiment that lifts in the specification.
Claims (14)
1. an organic LED display device is characterized in that, described device comprises:
One first substrate;
One second substrate has a gap between described second substrate and described first substrate;
One cushioned material layer is filled in the aforementioned gap;
One light absorbing zone is formed on the surface of corresponding described first substrate of described second substrate;
The reflection layer of one tool unthreaded hole array is positioned on the described light absorbing zone, and the reflection layer of described tool unthreaded hole array has a plurality of unthreaded holes;
A plurality of electroluminescence unit is positioned on the reflection layer of described tool unthreaded hole array;
One electrode layer is positioned on described a plurality of electroluminescence unit; And
One microlens array has a plurality of lenticules, is positioned on the surface of corresponding described second substrate of described first substrate;
Described a plurality of unthreaded holes of the reflection layer of described tool unthreaded hole array are one to one with described a plurality of lenticules of described microlens array and align, so that light is through described a plurality of lenticules and be focused in described a plurality of unthreaded hole.
2. organic LED display device as claimed in claim 1 is characterized in that, the reflection layer of described tool unthreaded hole array has conductivity and described electrode layer is electrically opposite.
3. organic LED display device as claimed in claim 1 is characterized in that, the reflection layer of described tool unthreaded hole array is non-conductive.
4. organic LED display device as claimed in claim 1; It is characterized in that described device more comprises electrically another electrode layer in contrast to described electrode layer between the reflection layer and described a plurality of electroluminescence unit of described tool unthreaded hole array.
5. organic LED display device as claimed in claim 1 is characterized in that, the reflection layer of described tool unthreaded hole array comprises aluminium or niobium aluminium.
6. organic LED display device as claimed in claim 1 is characterized in that, each described unthreaded hole diameter is the 2-5 micron in the reflection layer of described tool unthreaded hole array.
7. organic LED display device as claimed in claim 1 is characterized in that the refraction coefficient of described microlens array is greater than the refraction coefficient of described cushioned material layer.
8. organic LED display device as claimed in claim 7 is characterized in that, the refraction coefficient scope of described microlens array is 1.65 to 2.0, and the refraction coefficient scope of described cushioned material layer is 1.5 to 1.6.
9. organic LED display device as claimed in claim 1 is characterized in that, the described lenticular diameter of each of described microlens array is 2～5 microns and highly is 5～6 microns.
10. organic LED display device as claimed in claim 1 is characterized in that described light absorbing zone comprises black resin or molybdenum oxide.
11. organic LED display device as claimed in claim 1 is characterized in that, the described gap length between described first substrate and second substrate is 7～10 microns.
12. organic LED display device as claimed in claim 1 is characterized in that, described first substrate is a colored filter or glass substrate.
13. an image display system is characterized in that, described system can comprise:
One display unit has organic LED display device structure as claimed in claim 1; And
One input unit couples described display unit, and through described input unit transmission signals to described display unit, to control described display unit show image.
14. image display system as claimed in claim 13 can be contained in a mobile phone, a digital camera, a personal digital assistant, a mobile computer, a desktop PC, a TV, an automobile-used display, a global positioning system, an aviation with display, a digital frame or a Portable projector.
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| CN2008100817835A CN101533850B (en) | 2008-03-13 | 2008-03-13 | Organic light emitting diode display device and display system thereof |
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| CN2008100817835A CN101533850B (en) | 2008-03-13 | 2008-03-13 | Organic light emitting diode display device and display system thereof |
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| CN101533850B true CN101533850B (en) | 2012-07-04 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101125570B1 (en) | 2009-12-04 | 2012-03-22 | 삼성모바일디스플레이주식회사 | Organic light emitting diode device |
| KR101804360B1 (en) * | 2011-03-21 | 2017-12-05 | 삼성디스플레이 주식회사 | Organic light emitting display apparatus |
| JP5971903B2 (en) * | 2011-06-30 | 2016-08-17 | キヤノン株式会社 | Display device and video information processing device using the same |
| CN103474450A (en) * | 2013-09-11 | 2013-12-25 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof and display device |
| CN104730711A (en) * | 2013-12-20 | 2015-06-24 | 昆山国显光电有限公司 | Multimedia glasses and manufacturing method thereof |
| CN104078489B (en) * | 2014-06-11 | 2017-02-15 | 京东方科技集团股份有限公司 | Organic light emitting diode display panel and device |
| CN104051670B (en) * | 2014-06-12 | 2016-08-17 | 京东方科技集团股份有限公司 | A kind of display floater and preparation method thereof, display device |
| CN104538563B (en) * | 2015-01-16 | 2017-09-05 | 京东方科技集团股份有限公司 | Array base palte and preparation method thereof, display panel and display device |
| TWI607233B (en) * | 2015-02-16 | 2017-12-01 | 財團法人工業技術研究院 | Optical film structure and display structure |
| CN104900812A (en) * | 2015-04-23 | 2015-09-09 | 京东方科技集团股份有限公司 | Film packaging structure, manufacture method thereof and display device |
| CN106447846A (en) * | 2016-08-31 | 2017-02-22 | 重庆伟睿科技有限公司 | Bluetooth-based key management method |
| KR102627322B1 (en) | 2018-05-29 | 2024-01-19 | 삼성전자주식회사 | Display device |
| CN110111683B (en) * | 2019-04-24 | 2021-02-23 | 浙江大学 | Ultrathin one-way light-transmitting screen and design method thereof |
| CN114799497A (en) * | 2021-01-29 | 2022-07-29 | 武汉楚能电子有限公司 | Method and device for dividing micrometer laser beam into nanometer laser beam array and application |
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