CN103927949A - OLED panel - Google Patents
OLED panel Download PDFInfo
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- CN103927949A CN103927949A CN201410187028.0A CN201410187028A CN103927949A CN 103927949 A CN103927949 A CN 103927949A CN 201410187028 A CN201410187028 A CN 201410187028A CN 103927949 A CN103927949 A CN 103927949A
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- light
- oled panel
- pva layer
- polarized light
- rotatory polarization
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Abstract
Provided is an OLED panel. The OLED panel comprises a light-emitting surface which is used for emitting light. The OLED panel is characterized in that a circular polarizer and a PVA layer are stacked on the light-emitting surface in sequence, an APCF is arranged between the circular polarizer and the PVA layer, and a light-transmitting axis of the APCF and a light-transmitting axis of the PVA layer are consistent. Compared with the prior art, the OLED panel has the advantages that the transmittance of the emitted light can be improved so that luminance can be improved, the display effect can be improved, and power consumption can be reduced.
Description
Technical field
The present invention relates to OLED (organic light-emitting diode: Organic Light Emitting Diode) panel, particularly a kind of oled panel that can highlight.
Background technology
Oled panel has autoluminescence, simple in structure, ultra-thin, fast response time, wide visual angle, low-power consumption and can realize the characteristics such as flexible demonstration, therefore greatly popularized in recent years, especially, the display effect of high-quality is the market demand (particularly intelligent machine part) of small-medium size product.OLED employing injection and compound organic material that causes by charge carrier under the driving of electric field is luminous, can realize very high contrast.But, although OLED contrast is far above LCD (Liquid Crystal Display: LCDs), but light utilization efficiency is not as good as LCD, this be due to, in order to reduce ambient light impact, need on oled panel, paste rotatory polarization sheet, so, reduce the luminescence efficiency of OLED.
Particularly, in the oled panel of prior art, disturb for fear of ambient light, adopt the scheme that rotatory polarization sheet is set in light-emitting area more,, in the light-emitting area of panel, paste PVA (Polyvinyl Alcohol: polyvinyl alcohol (PVA)) layer and rotatory polarization sheet (1/2 wave plate+quarter wave plate), ambient light enters by PVA layer and rotatory polarization sheet that panel is reflected and then after rotatory polarization sheet, direction of vibration and polaroid see through direction of principal axis vertical, cause ambient light to go out not go, and then get rid of ambient light and disturb.
But, as shown in Figure 3A, on oled panel 10, stacked gradually rotatory polarization sheet (1/2 wave plate+quarter wave plate) 11 and PVA layer (polaroid) 12, the PVA layer (polaroid) 12 here can make P polarized light pass through, and S polarized light can not be passed through.The incident route of extraneous natural light B0 is Li1, and outgoing route is Lo1.Natural light B0 becomes P polarized light after by PVA layer (polaroid) 12, and then by after rotatory polarization sheet (1/2 wave plate+quarter wave plate) 11, become right-circularly polarized light (the circle arrow of below in figure), this right-circularly polarized light becomes left circularly polarized light (the circle arrow of top in figure) after being reflected by oled panel, and then by after rotatory polarization sheet (1/2 wave plate+quarter wave plate) 11, become S polarized light, and this S polarized light cannot be by the outgoing of PVA layer to outside (use × represent).
In addition, as shown in Figure 3 B, for instance, pay close attention to the outgoing route Lo2, the Lo2 ' that send natural light B0 from the light-emitting area 101 of oled panel 10.As shown in route Lo2, after natural light B0 light transmission rotatory polarization sheet (1/2 wave plate+quarter wave plate) 11, only P polarized light can see through PVA layer (polaroid) 12 and extremely outside of outgoing; On the other hand, as shown in route Lo2 ', see through after rotatory polarization sheet (1/2 wave plate+quarter wave plate) 11 at natural light B0, S polarized light can not see through PVA layer (polaroid) 12 and outgoing extremely outside (use × represent).
As above-mentioned, PVA layer (polaroid), although 12 barrier effect can reduce ambient light interference, has also reduced nearly 60% by the luminous transmitance of OLED material.Therefore, urgently oled panel brightness can be improved, can improve display effect on the one hand, can reduce on the other hand power consumption.
Summary of the invention
In order to address the above problem, the object of the invention is to, a kind of oled panel is provided, can make its light beam sending efficiently see through, thereby increase brightness, reduction power consumption.
Oled panel of the present invention, has for luminous light-emitting area, it is characterized in that, has stacked gradually rotatory polarization sheet, PVA layer in described light-emitting area; Between described rotatory polarization sheet and described PVA layer, be provided with APCF (advanced polarization conversion film: height polarisation switching film); Described APCF is consistent with the light transmission shaft of described PVA layer.
Preferably, in this oled panel, described rotatory polarization sheet is made up of 1/2 wave plate and quarter wave plate.
Preferably, in this oled panel, described PVA layer can make P polarized light see through, and S polarized light cannot be seen through.
Preferably, in this oled panel, described PVA layer can make S polarized light see through, and P polarized light cannot be seen through.
As above-mentioned, in terms of existing technologies, oled panel of the present invention can improve luminous transmitance, thereby improves brightness, can either improve display effect, also can reduce on the other hand power consumption.
Brief description of the drawings
Fig. 1 is the light channel structure figure that schematically illustrates oled panel of the present invention.
Fig. 2 is the luminous blast schematic diagram that schematically illustrates oled panel of the present invention.
Fig. 3 A, Fig. 3 B are the schematic diagram of oled panel of the prior art.
Embodiment
The oled panel of an embodiment of the invention is described with reference to Fig. 1.Fig. 1 is the light channel structure figure that schematically illustrates oled panel of the present invention.
As shown in Figure 1, rotatory polarization sheet (1/2 wave plate+quarter wave plate) 11 and PVA layer 12 on oled panel 10, are stacked gradually, the PVA layer 12 here plays a role as polaroid, can make P polarized light pass through, S polarized light can not be passed through, certainly, also can make S polarized light by P polarized light can not be passed through.In addition, rotatory polarization sheet 11 is made up of 1/2 wave plate and quarter wave plate.
Between PVA layer 12 and rotatory polarization sheet 11, be provided with APCF (advanced polarization conversion film: height polarisation switching film) 13, and maintenance APCF13's is consistent through axle through axle and PVA layer 12.So, what can make direction of vibration and PVA layer 12 sees through the light of axle different directions, become with PVA layer 12 to see through direction of principal axis consistent, in order to increase the luminous transmitance of oled panel 12, and then improve panel luminance.
For instance, pay close attention to the outgoing route Lo, the Lo ' that send natural light B0 from oled panel 10.As shown in route Lo, after natural light B0 light transmission rotatory polarization sheet 11, only P polarized light can see through APCF13 and PVA layer 12 and outgoing to outside; Similarly, as shown in route Lo ', see through after rotatory polarization sheet 11 at natural light B0, S polarized light can not see through APCF13 and be reflected back (with reference to the arrow that reverses in figure), the reflected light being reflected back sees through rotatory polarization sheet 11 and get back to oled panel 10, so after being reflected by oled panel 10 with the outgoing again of natural light form.As above-mentioned, in the natural light of outgoing again, P polarized light part can outgoing to outside, and S polarized light is still reflected back by APCF13, and then after again oled panel 10 reflections with the outgoing again of natural light form, reciprocation cycle like this, the S polarized light being at every turn reflected back by APCF13 all can some be reflected as P light and penetrate, thereby the luminous transmitance that has improved oled panel 12, has increased panel luminance.
The luminous incremental principle of oled panel 10 is described below with reference to Fig. 2.Fig. 2 is the luminous blast schematic diagram that schematically illustrates the oled panel of the present invention in Fig. 1.Wherein, incident, the outgoing route of light represent with B1～B4, represent the P polarized light (only representing with P in the drawings) of polarization direction and paper level with the four-headed arrow of level, represent the polarization direction S polarized light vertical with paper (only representing with S in the drawings) with round dot, and, omitted the diagram of rotatory polarization sheet 11.
As shown in Figure 2, are the natural lights that contain P polarized light and S polarized light from the light beam B1 of oled panel 10 outgoing, if APCF13 is not set, seeing through PVA layer 12 from the light beam B1 of oled panel 10 outgoing, only P polarized light outgoing is wherein to outside.
In the situation that being provided with APCF13, natural lights identical with light beam B1 from the light beam B2 of oled panel 10 outgoing, light beam B1 arrives after APCF13, and P polarized light wherein sees through APCF13 and then outgoing to outside, and S polarized light is wherein that light beam B2 ' is reflected back toward oled panel 10.
It is light beam B3 (with reference to the arrow that reverses in figure) that light beam B2 ' becomes natural light after being reflected by oled panel 10, light beam B3 arrives after APCF13, P polarized light wherein sees through APCF13 and then outgoing to outside, and S polarized light is wherein that light beam B3 ' is reflected back toward oled panel 10.
It is light beam B4 (with reference to the arrow that reverses in figure) that light beam B3 ' becomes natural light after being reflected by oled panel 10, light beam B4 arrives after APCF13, P polarized light wherein sees through APCF13 and then outgoing to outside, and S polarized light (not shown) is wherein reflected back toward oled panel 10.
Although only exemplified light beam B1～B4 in figure, light beam can unlimitedly reflect in principle, make the light quantity infinite approach of outgoing from the original light quantity of oled panel 10 outgoing.Although cannot reach in practice desirable like this state due to optical path loss, for the prior art of APCF13 is not set, the outgoing in figure is to outside B3, B4 ... be exactly luminous increment, effect is remarkable.
As above-mentioned, in terms of existing technologies, oled panel of the present invention can improve luminous transmitance, thereby improves brightness, can either improve display effect, also can reduce on the other hand power consumption.
Claims (4)
1. an oled panel, has for luminous light-emitting area, it is characterized in that,
In described light-emitting area, stack gradually rotatory polarization sheet, PVA layer,
Between described rotatory polarization sheet and described PVA layer, be provided with APCF,
Described APCF is consistent with the light transmission shaft of described PVA layer.
2. oled panel as claimed in claim 1, is characterized in that,
Described rotatory polarization sheet is made up of 1/2 wave plate and quarter wave plate.
3. oled panel as claimed in claim 1 or 2, is characterized in that,
Described PVA layer can make P polarized light see through, and S polarized light cannot be seen through.
4. oled panel as claimed in claim 1 or 2, is characterized in that,
Described PVA layer can make S polarized light see through, and P polarized light cannot be seen through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187028.0A CN103927949A (en) | 2014-05-05 | 2014-05-05 | OLED panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187028.0A CN103927949A (en) | 2014-05-05 | 2014-05-05 | OLED panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103927949A true CN103927949A (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410187028.0A Pending CN103927949A (en) | 2014-05-05 | 2014-05-05 | OLED panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN103927949A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112408A (en) * | 2014-08-07 | 2014-10-22 | 上海和辉光电有限公司 | OLED (organic light-emitting diode) panel |
| WO2017166467A1 (en) * | 2016-03-31 | 2017-10-05 | 京东方科技集团股份有限公司 | Polarized light source and display device |
Citations (5)
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| CN1953238A (en) * | 2006-11-28 | 2007-04-25 | 友达光电股份有限公司 | An electroluminescence display |
| CN100368833C (en) * | 2001-12-25 | 2008-02-13 | 富士胶片株式会社 | Circularly polarizing plate and liquid crystal display |
| CN101946195A (en) * | 2008-05-22 | 2011-01-12 | Lg化学株式会社 | Luminance-enhancing polarising plate for an organic light-emitting element |
| CN202549937U (en) * | 2012-05-10 | 2012-11-21 | 京东方科技集团股份有限公司 | Organic light-emitting diode (OLED) display structure and OLED display device |
| CN203224638U (en) * | 2012-01-30 | 2013-10-02 | 苹果公司 | Polariscope and electronic display |
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2014
- 2014-05-05 CN CN201410187028.0A patent/CN103927949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368833C (en) * | 2001-12-25 | 2008-02-13 | 富士胶片株式会社 | Circularly polarizing plate and liquid crystal display |
| CN1953238A (en) * | 2006-11-28 | 2007-04-25 | 友达光电股份有限公司 | An electroluminescence display |
| CN101946195A (en) * | 2008-05-22 | 2011-01-12 | Lg化学株式会社 | Luminance-enhancing polarising plate for an organic light-emitting element |
| CN203224638U (en) * | 2012-01-30 | 2013-10-02 | 苹果公司 | Polariscope and electronic display |
| CN202549937U (en) * | 2012-05-10 | 2012-11-21 | 京东方科技集团股份有限公司 | Organic light-emitting diode (OLED) display structure and OLED display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112408A (en) * | 2014-08-07 | 2014-10-22 | 上海和辉光电有限公司 | OLED (organic light-emitting diode) panel |
| WO2017166467A1 (en) * | 2016-03-31 | 2017-10-05 | 京东方科技集团股份有限公司 | Polarized light source and display device |
| US10444529B2 (en) | 2016-03-31 | 2019-10-15 | Boe Technology Group Co., Ltd. | Polarized light source and display apparatus |
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Application publication date: 20140716 |