CN100428488C - Organic electroluminance display panel - Google Patents
Organic electroluminance display panel Download PDFInfo
- Publication number
- CN100428488C CN100428488C CNB2005100672495A CN200510067249A CN100428488C CN 100428488 C CN100428488 C CN 100428488C CN B2005100672495 A CNB2005100672495 A CN B2005100672495A CN 200510067249 A CN200510067249 A CN 200510067249A CN 100428488 C CN100428488 C CN 100428488C
- Authority
- CN
- China
- Prior art keywords
- blooming
- pixel region
- organic
- light
- display panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The present invention relates to an organic electroluminescent display panel which mainly comprises a base plate, wherein a primary pixel region and a secondary pixel region are defined on the surface of the base plate; an organic electroluminescent element is arranged on the base plate and can be driven in order to send out light; a first optical film and a second optical film are respectively arranged in the primary pixel region and the secondary pixel region of the organic electroluminescent element; under the action of the first optical film and the second optical film, the light sent by the organic electroluminescent element respectively produce first colored light and second colored light in the primary pixel region and the secondary pixel region through the absorption or the conversion of the optical films, wherein the first optical film and the second optical film have different areas.
Description
Technical field
The present invention relates to a kind of display floater, relate in particular to a kind of organic EL display panel.
Background technology
Along with making rapid progress of science and technology, organic material also is used in the various circuit element gradually widely, for example a kind of organic EL display panel (organicelectroluminescent display that utilizes organic material to make, OLED), just with simple framework and splendid working temperature, contrast, visual angle and possess light-emitting diode is arranged (Light-emitting diode, LED) advantage such as the rectification and the characteristics of luminescence, and in the monitor market, attracted attention gradually.
Present organic EL display panel industry the full-colorization technology widely used probably can be divided into RGB list type vapour deposition method (RGB side-by-side pattern) and white light adds colored filter (CFA) method, wherein because the latter only needs to make the display element of white light on substrate, and do not need to form respectively the display element of red, green, blue three looks, so do not need to use shade, therefore can significantly simplify technology.In addition, owing to exempt the restriction of shade size, therefore can further promote the image quality and the fineness of display floater, and when the evaporation display element, because of not needing to carry out contraposition according to different colors, so can further promote productive rate, make white light add that the framework of colored filter becomes the main flow of present organic EL display panel industry.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of an existing organic EL display panel.As shown in Figure 1, an organic EL display panel 10 includes a substrate 12, and substrate 12 surfaces are provided with a plurality of pixels, wherein, for convenience of description for the purpose of, in Fig. 1, only represent with a pixel.In this pixel, there is pixel region 20, a pixel region 30 and a pixel region 40 for the third time for the second time for the first time on substrate 12 surfaces.Be provided with a display element 14 on substrate 12 surfaces, an organic electro-luminescent display unit for example, in order to produce a white light, and the pixel region 20 first time above display element 14, pixel region 30 and for the third time in the pixel region 40 for the second time, then be respectively equipped with a ruddiness filter 22, an one green glow filter 24 and a blue filter 26, so that the white light that display unit 14 is produced is passing through ruddiness filter 22, can generate red (R) after green glow filter 24 and the blue filter 26, the coloured light of green (G) and blue (B) three kinds of different colours shows to carry out image.
Yet because display element 14, ruddiness filter 22, the cause of green glow filter 24 and blue filter 26 material behaviors own, common formed ruddiness (R), green glow (G) tends to have different intensity with blue light (B), therefore, follow-up when carrying out the image display operation, tend to find, in same electrical after the match, ruddiness (R), the phenomenon of colour cast can appear in the shown image of the combination of green glow (G) and blue light (B), for instance, suppose after by ruddiness filter 22 and blue filter 26, can cause bigger light intensity decline (that is the green glow that is produced in this pixel has relatively large intensity), so when display floater 10 is wanted display white and is gone to drive display element 14 with identical electric field or current strength, can find that the actual photochromic meeting that forms be to present the green partially situation of white, seriously influence and display quality caused.
In the prior art, the solution that also has some to propose at aforementioned colour cast problem, for instance, can be by optionally strengthening the electric field of other color time pixel region place display element 14, make this sentence bigger light intensity and export, and improve colour balance by light behind the filter, however this by strengthening the method that electric field overcomes the aberration problem, often also can cause the aging rapidly shortcoming of display element, and shorten the life-span of display floater 10.
Therefore, we press for a kind of new organic EL display panel structure, to solve photochromic unbalanced problem in the prior art.
Summary of the invention
One of purpose of the present invention just provides a kind of organic EL display panel of reaching the white light of form and aspect balance, to overcome the problems of the prior art.
For reaching above-mentioned and other purpose, organic EL display panel of the present invention mainly is to include a substrate, substrate surface has at least one first time of pixel region, one pixel region and a pixel region for the third time for the second time, one organic electroluminescent device is located on the substrate, organic electroluminescent device can be actuated to send light, and at least one first blooming, one second blooming and one the 3rd blooming, corresponding respectively this of the pixel region that is arranged at this organic electroluminescent device first time, this second pixel region and this are for the third time in the pixel region, and the light that this organic electroluminescent device is sent, respectively from this pixel region and produce one first coloured light in the pixel region for the second time for the first time, one second coloured light and one the 3rd coloured light, this first coloured light, this second coloured light, and the 3rd coloured light be respectively ruddiness, green glow and blue light; Wherein first blooming, this second blooming have different areas with the 3rd blooming, and the thickness of this second blooming is greater than this first blooming or the 3rd blooming.
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and conjunction with figs., be described in detail below.
Description of drawings
Fig. 1 is the generalized section of an existing organic EL display panel;
Fig. 2 is the generalized section of an organic EL display panel in one embodiment of the invention;
Fig. 3 is the generalized section of an organic EL display panel in another embodiment of the present invention;
Fig. 4 is the generalized section of an organic EL display panel in yet another embodiment of the invention.
Symbol description
10～organic EL display panel; 12～substrate;
14～display element; 20～for the first time pixel regions;
22～ruddiness filter; 24～green glow filter;
26～blue filter; 30～for the second time pixel regions;
40～for the third time pixel regions; 110～display floater;
112～substrate; 114～display element;
120～for the first time pixel regions; 122～the first bloomings;
124～the second bloomings; 126～the 3rd bloomings;
130～for the second time pixel regions; 140～for the third time pixel regions;
132～the first coloured light; 134～the second coloured light;
136～the 3rd coloured light; 210～display floater;
212～substrate; 214～display element;
222～the first bloomings; 224～the second bloomings;
226～the 3rd bloomings; 310～display floater;
312～substrate; 314～display element;
322～the first bloomings; 324～the second bloomings;
326～the 3rd bloomings; 316～substrate;
318～glue-line.
Embodiment
Please refer to Fig. 2, Fig. 2 is the generalized section of an organic EL display panel in one embodiment of the invention.As shown in Figure 2, an organic EL display panel 110 includes a substrate 112, and is same, also only shown a pixel as representative in Fig. 2, and with convenient explanation, but in fact substrate 112 surfaces are still and are provided with a plurality of pixels.
In this pixel, there is pixel region 120, a pixel region 130 and a pixel region 140 for the third time for the second time for the first time on substrate 112 surfaces.Be provided with a display element 114 on substrate 112 surfaces, can be actuated to produce light.In one embodiment of this invention, display element 114 is one can produce the organic electro-luminescent display unit of white light, but the present invention is not limited to this, and can be the organic electro-luminescent display unit of other coloured light, an organic electro-luminescent display unit that can produce green glow, ruddiness, blue light, tangerine light or other any coloured light for example.
In one embodiment of this invention, first blooming 122, second blooming 124 and the 3rd blooming 126 are filter (color filter of different colours, CF), for example can be respectively the ruddiness filter, a green glow filter and a blue filter, and display element 114 is one can produce the organic electro-luminescent display unit of white light, therefore when display element 114 generates white light, can be upwards by first blooming 122, second blooming 124 and the 3rd blooming 126, and respectively at pixel region 120 first time, pixel region 130 and pixel region 140 interior first coloured light 132 that generate redness for the second time for the third time, second green coloured light 134 and the 3rd blue coloured light 136.
Except previous embodiment, display element 114, first blooming 122, second blooming 124 and the 3rd blooming 126 still visual product needs and other combination is arranged.For instance, first blooming 122, second blooming 124 and the 3rd blooming 126 can be the filter or color conversion (CCM) layer of different colours, and display element 114 also is not limited to the white light organic electroluminescence display element, and can be the organic electro-luminescent display unit of other coloured light.For example display element 114 can be a blue light display element, and first blooming 122 and the 3rd blooming 126 are respectively the redness and green color conversion (CCM) layer that short wavelength's blueness can be transferred to the long wavelength, second blooming then is a blue filter coating or a transparent optical film, make that display element 114 formed light still can be by behind first blooming 122, second blooming 124 and the 3rd blooming 126, respectively at the first time pixel region 120, pixel region 130 and generate ruddiness, blue light and green glows in the pixel region 140 for the third time for the second time.
In addition, in another embodiment of the present invention, in one pixel of organic EL display panel 110, except aforementioned first time pixel region 120, pixel region 130 and for the third time the pixel region 140 for the second time, also can include the pixel region (not shown) one the 4th time, make display element 114 in the 4th pixel region, produce one the 4th coloured light, wherein can have one the 4th blooming (for example can be aforesaid filter, color conversion layer or the combination of the two) in the 4th pixel region, also can not have any blooming.
Each blooming among the ben the present invention of being of wanting (first blooming 122, second blooming 124 and the 3rd blooming 126) in, having the area of a blooming and the area of other blooming at least is to be not quite similar, thereby can comply with formed first coloured light 132, the light intensity of second coloured light 134 and the 3rd coloured light 136 is suitably adjusted, make it in a pixel, ruddiness (R), green glow (G) is desired value with the CIE coordinate figure (Commission Internationaled ' Eclairage (CIE) coordinates) that blue light (B) is manifested after same electrical makes up after the match.
For instance, if the brightness (light intensity of unit are) of second coloured light 134 that is generated is higher than same electrical after the match, the required brightness of second coloured light when ruddiness (R), green glow (G) are formed white light with blue light (B) three coloured light desires, then can be by reducing second blooming, 124 areas or increasing the area of first blooming 122 and the 3rd blooming 126, make first coloured light 132 in the whole pixel, second coloured light 134 and the 3rd coloured light 136 rough white light color balance of reaching, that is the CIE coordinate figure that obtains is (0.31 ± 0.03,0.32 ± 0.03).Except the area of each blooming is not quite similar, each blooming still visual product demand and have different-thickness or shape, with the further croma balance that improves between each color coloured light.
Please refer to Fig. 3, Fig. 3 is the generalized section of an organic EL display panel 210 in another embodiment of the present invention.Organic EL display panel 110 in the previous embodiment, organic EL display panel 210 is a downward luminous organic EL display panel, therefore first blooming 222, second blooming 224 and the 3rd blooming 226 are the belows that are positioned at display element 214, and substrate 212 is a transparency carrier, glass substrate for example, because except light emission direction changes, all identical on other operation principles with previous embodiment, should be those skilled in the art can understand easily, so do not repeat them here.
Please refer to Fig. 4, Fig. 4 is the generalized section of an organic EL display panel 310 among the embodiment more of the present invention.Similar with the downward light-emitting organic electroluminescent display floater 210 in the previous embodiment, but having only display element 314 is to be positioned at substrate 312 tops, and first blooming 322, second blooming 324 and the 3rd blooming 326 are to be positioned on another substrate 316, and substrate 312 is all a transparency carrier with substrate 316, glass substrate for example, and two substrates 312 and 316 are provided with by glue-line 318, and for example the colloid of available ultraviolet photo-curing (UV glue) is binded substrate 312 and 316.Because except blooming was positioned on the different substrate, all identical with previous embodiment on other operation principles, should be those skilled in the art can understand easily, so do not repeat them here.
Compared to prior art, a kind of not organic EL display panel of homogeneous pixel region area that has is provided among the present invention, to revise the luminance difference of each color coloured light by the difference on the area between each time pixel region, make the coloured light of each color can roughly have identical intensity, and reach the form and aspect balance, promote display quality.In addition, because the present invention does not need display element is bestowed extra electric field, therefore more can further prolong the life-span of organic EL display panel.
Though the present invention discloses as above with several preferred embodiments; right its is not in order to limit the present invention; any those skilled in the art; under the premise without departing from the spirit and scope of the present invention; when can revising arbitrarily and change, so protection scope of the present invention is as the criterion when looking the claims person of defining.
Claims (10)
1. organic EL display panel comprises:
One substrate, this substrate surface have at least one first time of pixel region, a pixel region and a pixel region for the third time for the second time;
One organic electroluminescent device is located on this substrate, and this organic electroluminescent device can be actuated to send light; And
At least one first blooming, one second blooming and one the 3rd blooming, corresponding respectively this of the pixel region that is arranged at this organic electroluminescent device, this first time second time pixel region and this is for the third time in the pixel region, and the light that this organic electroluminescent device is sent, respectively from this for the first time pixel region, this for the second time pixel and this produce one first coloured light, one second coloured light and one the 3rd coloured light in pixel region for the third time, this first coloured light, this second coloured light and the 3rd coloured light are respectively ruddiness, green glow and blue light;
Wherein, this first blooming, this second blooming have different areas with the 3rd blooming, and the thickness of this second blooming is greater than this first blooming or the 3rd blooming.
2. organic EL display panel as claimed in claim 1, wherein this first blooming and the 3rd light film have different thickness.
3. organic EL display panel as claimed in claim 1, wherein this first blooming, this second blooming have different shapes with the 3rd blooming.
4. organic EL display panel as claimed in claim 1, what wherein this organic electroluminescent device sent only is white light.
5. organic EL display panel as claimed in claim 1, wherein this first coloured light, this second coloured light, and the 3rd coloured light can reach white light color balance, its CIE coordinate figure is (0.31 ± 0.03,0.32 ± 0.03).
6. organic EL display panel as claimed in claim 1, wherein this substrate surface also has pixel region one the 4th time, and the light that this organic electroluminescent device is sent, and in the 4th pixel region, produces one the 4th coloured light certainly.
7. organic EL display panel as claimed in claim 6, wherein this panel also has one the 4th blooming, is arranged at the 4th pixel region of this organic electroluminescent device.
8. organic EL display panel as claimed in claim 6, wherein this panel also has one the 4th conversion film, is arranged at the 4th pixel region of this organic electroluminescent device.
9. organic EL display panel as claimed in claim 1, this second blooming that wherein corresponds to this green light has the area less than other blooming.
10. organic EL display panel as claimed in claim 1, wherein this first blooming is filter, color conversion layer or the combination of the two, this second blooming is filter, color conversion layer or the combination of the two, and the 3rd blooming is filter, color conversion layer or the combination of the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100672495A CN100428488C (en) | 2005-04-20 | 2005-04-20 | Organic electroluminance display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100672495A CN100428488C (en) | 2005-04-20 | 2005-04-20 | Organic electroluminance display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1688184A CN1688184A (en) | 2005-10-26 |
| CN100428488C true CN100428488C (en) | 2008-10-22 |
Family
ID=35306224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100672495A Active CN100428488C (en) | 2005-04-20 | 2005-04-20 | Organic electroluminance display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100428488C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102804043A (en) * | 2009-06-25 | 2012-11-28 | 夏普株式会社 | Display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4828365A (en) * | 1988-02-22 | 1989-05-09 | Rca Licensing Corporation | Multicolor filter for producing purer white across a display device |
| US5311337A (en) * | 1992-09-23 | 1994-05-10 | Honeywell Inc. | Color mosaic matrix display having expanded or reduced hexagonal dot pattern |
| JPH11109333A (en) * | 1997-10-03 | 1999-04-23 | Casio Comput Co Ltd | Liquid crystal display element |
| CN1535084A (en) * | 2003-03-31 | 2004-10-06 | 东北先锋公司 | Organic electroluminescence display for colour displaying |
| CN1536943A (en) * | 2003-04-07 | 2004-10-13 | ���ǵ�����ʽ���� | Organic electroluminescent display device |
| CN1543270A (en) * | 2003-02-20 | 2004-11-03 | ������������ʽ���� | Color light emitting display device |
-
2005
- 2005-04-20 CN CNB2005100672495A patent/CN100428488C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4828365A (en) * | 1988-02-22 | 1989-05-09 | Rca Licensing Corporation | Multicolor filter for producing purer white across a display device |
| US5311337A (en) * | 1992-09-23 | 1994-05-10 | Honeywell Inc. | Color mosaic matrix display having expanded or reduced hexagonal dot pattern |
| JPH11109333A (en) * | 1997-10-03 | 1999-04-23 | Casio Comput Co Ltd | Liquid crystal display element |
| CN1543270A (en) * | 2003-02-20 | 2004-11-03 | ������������ʽ���� | Color light emitting display device |
| CN1535084A (en) * | 2003-03-31 | 2004-10-06 | 东北先锋公司 | Organic electroluminescence display for colour displaying |
| CN1536943A (en) * | 2003-04-07 | 2004-10-13 | ���ǵ�����ʽ���� | Organic electroluminescent display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102804043A (en) * | 2009-06-25 | 2012-11-28 | 夏普株式会社 | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1688184A (en) | 2005-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103794632B (en) | Display panel | |
| CN104821161B (en) | Driving method, the driving method of field sequential display device of a kind of sequence display panel | |
| CN104900684A (en) | Display substrate, manufacturing method therefor, and display device | |
| CN106033656A (en) | Display device | |
| CN1321344C (en) | Liquid crystal display device | |
| US20130070440A1 (en) | OLED Light Panel in Combination with a Gobo | |
| CN103779375A (en) | Full color LED display panel, manufacturing method of full color LED display panel and displayer | |
| WO2009028370A1 (en) | Liquid crystal display device and color filter used for the same | |
| CN108922914A (en) | A kind of OLED display panel and display device | |
| JP2008288412A (en) | Led light-emitting device | |
| CN1094657C (en) | All colour organic luminous diode and its manufacturing method | |
| CN102323636B (en) | Blue photoresist, color filter substrate using same and display device | |
| US20120033164A1 (en) | Liquid crystal display device and blue color filter thereof | |
| CN106098954A (en) | A kind of organic electroluminescence device and preparation method thereof, display device | |
| CN106206663B (en) | Organic light emitting display and preparation method thereof | |
| CN100428488C (en) | Organic electroluminance display panel | |
| US20070046184A1 (en) | Organic electroluminescent device | |
| CN103545449A (en) | Organic light emitting diode (OLED), display panel with OLED and display equipment with OLED | |
| JP2007133343A (en) | Color filter with excellent light emission luminance and color contrast | |
| CN100426938C (en) | Method and display device for improving series type organic electro-luminescence element color shift | |
| CN102709280A (en) | Chip on board (COB) integrated light source module | |
| CN207925471U (en) | A kind of AMOLED luminous layer structures and display panel | |
| CN101256304A (en) | Display module with high colour saturability | |
| CN1571605A (en) | Mirror surface full-color display panel | |
| CN101943820A (en) | Liquid crystal display and blue color filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |