CN104659051A - Organic light emitting diode (OLED) display - Google Patents
Organic light emitting diode (OLED) display Download PDFInfo
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- CN104659051A CN104659051A CN201310583959.8A CN201310583959A CN104659051A CN 104659051 A CN104659051 A CN 104659051A CN 201310583959 A CN201310583959 A CN 201310583959A CN 104659051 A CN104659051 A CN 104659051A
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- barrier layer
- inorganic barrier
- light emitting
- organic light
- emitting diode
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Abstract
The invention discloses an organic light emitting diode (OLED) display, which comprises a substrate, a thin film transistor circuit, an organic light emitting device, a pressure-sensitive adhesive and a linear polarizing film attached to the pressure-sensitive adhesive. The organic light emitting diode (OLED) display is characterized in that a thin film packaging layer formed by an inorganic stopping layer and an organic buffering layer in an overlapping mode is arranged between the organic light emitting device and the pressure-sensitive adhesive for protecting the organic light emitting device; and the linear polarizing film and a phase delaying layer in the inorganic stopping layer form an optical component with circular polarizer features. When the organic light emitting diodes (OLED) display is adopted, the number of film layers on the surface of the OLED can be reduced, the thickness is reduced, the display efficiency of the OLED display is enhanced, and manufacturing of a flexible display is facilitated.
Description
Technical field
The present invention relates to flat panel display, particularly relate to a kind of Organic Light Emitting Diode (OLED) display.
Background technology
Organic Light Emitting Diode (OLED) display has the response speed of better brightness, lower driving voltage and Geng Gao than inorganic light-emitting display device, and can provide the image more enriching color.But Organic Light Emitting Diode (OLED) display easily makes luminous organic material deterioration because of outside air and entering of moisture.In order to the deterioration preventing organic light emitting diode display from causing due to the infiltration of outside air or moisture, organic layer and the alternately laminated film encapsulation method of inorganic layer are developed.This film can be used for having flexibility, ultra-thin Organic Light Emitting Diode (OLED) display.For avoiding external environmental light to the interference of Organic Light Emitting Diode (OLED) display, display surface needs to attach rotatory polarization sheet, rotatory polarization sheet is generally made up of the multilayer film such as linear polarizer plate and phase retardation film, cause Organic Light Emitting Diode (OLED) the display surface rete number of plies more thus, affect and limit the yield of Organic Light Emitting Diode (OLED) display and increase cost, and cause while increase thickness, reduce the efficiency of Organic Light Emitting Diode (OLED) display, make that product is unfavorable is applied to flexible display simultaneously.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of Organic Light Emitting Diode (OLED) display, to reduce the rete quantity on Organic Light Emitting Diode (OLED) surface, reduces its thickness, and increase the display efficiency of OLED display, and be conducive to manufacturing flexible display.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of organic light emitting diode display, comprise the linear polarizing film of substrate, thin-film transistor circuit, organic luminescent device and pressure sensitive adhesive and upper attaching thereof, comprise by inorganic barrier layer and the overlapping thin-film encapsulation layer of organic buffer layer between described organic luminescent device and pressure sensitive adhesive, for the protection of described organic luminescent device; Phase delay layer in described linear polarizing film and described inorganic barrier layer forms the optical component with rotatory polarization sheet characteristic.
Described inorganic barrier layer comprises the first inorganic barrier layer, the second inorganic barrier layer and the 3rd inorganic barrier layer with phase delay effect.
The described optical component with rotatory polarization sheet characteristic, phase delay layer in the described optical component with rotatory polarization sheet characteristic, be the first inorganic barrier layer, or the first inorganic barrier layer and the second inorganic barrier layer, the impact of external environmental light on display effect deterioration can be eliminated.
Described first inorganic barrier layer, adopts inclined deposition technique to make, can postpone the phase place of 1/4 wavelength.
Described second inorganic barrier layer, adopts inclined deposition technique to make, can postpone the phase place of 1/2 wavelength.
Described inorganic barrier layer, adopts TiO2, TaOx, CaO, BaO or SiO2 material to make.
Adopt the first inorganic barrier layer that CaO or BaO makes, can as the barrier layer with hygroscopic properties.
Described organic buffer layer comprises the first organic buffer layer and the second organic buffer layer.
First organic buffer layer of described organic buffer layer, the second organic buffer layer are spaced apart in described inorganic barrier layer.
Described first inorganic barrier layer can be arranged at the position of arbitrary inorganic barrier layer.
Organic Light Emitting Diode provided by the present invention (OLED) display, has the following advantages:
The present invention adopts organic and inorganic overlapping making thin-film package, several functions is integrated in same rete, the rete quantity of effective minimizing Organic Light Emitting Diode (OLED) display surface, thus thickness and material cost can be reduced, improve display efficiency, and be conducive to manufacturing flexible display.
Accompanying drawing explanation
Fig. 1 is a kind of organic light emitting diode display structural representation of the present invention;
Fig. 2 is the organic light emitting diode display structural representation of the second embodiment of the present invention.
[primary clustering and symbol description]
110,210: substrate
120,220: thin-film transistor (TFT) circuit
130,230: organic luminescent device
140: inorganic barrier layer
180: the first inorganic barrier layers
141: the second inorganic barrier layers and phase delay layer (1/4 λ)
142: the three inorganic barrier layers
150: organic buffer layer
151: the first organic buffer layers
152: the second organic buffer layers
160,260: linear polarizing film
170,270: optical cement (pressure sensitive adhesive)
240: inorganic barrier layer
280: the first inorganic barrier layers
241: the second inorganic barrier layers
242: the three inorganic barrier layers
250: organic buffer layer
251: the first organic buffer layers
252: the second organic buffer layers.
Embodiment
Below in conjunction with accompanying drawing and embodiments of the invention, Organic Light Emitting Diode of the present invention (OLED) display is described in further detail.
Fig. 1 is a kind of Organic Light Emitting Diode (OLED) display device structure schematic diagram of the present invention.Substrate 110 makes thin-film transistor circuit 120, and organic luminescent device 130 is arranged on thin-film transistor circuit 120, and with its electric connection.
Its thin-film encapsulation layer, is formed primarily of inorganic barrier layer 140 and organic buffer layer 150.Wherein, described inorganic barrier layer 140, is formed primarily of the first inorganic barrier layer 180, second inorganic barrier layer 141 and the 3rd inorganic barrier layer 142.Described organic buffer layer 150, is formed primarily of the first organic buffer layer 151 and the second organic buffer layer 152.
Described first inorganic barrier layer 180 is formed on organic luminescent device 130, and the first organic buffer layer 151, second inorganic barrier layer 141, second organic buffer layer 152 is formed on the first inorganic barrier layer 180 successively.But the invention is not restricted to the method that aforesaid encapsulated layer is formed.Such as in alternative embodiments, can be that the second inorganic barrier layer 141 is positioned on organic luminescent device 130, the first inorganic barrier layer 180 can be positioned at the most top layer of encapsulation.That is, the position of the first inorganic barrier layer 180 can be the position of arbitrary inorganic barrier layer.
Here, the first inorganic barrier layer 180 adopts inclined deposition Process Production, therefore this inorganic material can predetermined oblique angle, and make it have birefringent characteristic, be made as the phase delay layer with 1/4 wavelength, material can be TiO
2, TaOx, CaO, BaO or SiO
2deng, when being formed by CaO or BaO, also can use as the barrier layer with hygroscopic properties.
On thin-film encapsulation layer, pressure sensitive adhesive 170 is utilized to attach linear polarizing film 160, this linear polarizing film 160 is arranged in pairs or groups with the first inorganic barrier layer 180 in thin-film encapsulation layer, form the optical component with rotatory polarization sheet characteristic, in order to eliminate the impact of external environmental light on the display effect deterioration of organic light emitting diode display.
Fig. 2 is second embodiment of the present invention structural representation.Over the substrate 210 make thin-film transistor circuit 220, organic luminescent device 230 is arranged on thin-film transistor circuit 220, and with its electric connection.
Thin-film packing structure and embodiment one (with reference to figure 1) similar, formed primarily of inorganic barrier layer 240 and organic buffer layer 250.
First inorganic barrier layer 280, adopts inclined deposition technique, forms the phase delay layer of 1/4 wavelength.
Second inorganic barrier layer 241, same employing inclined deposition technique, forms the phase delay layer of 1/2 wavelength.
Similar embodiment one (with reference to figure 1), the first organic buffer layer 251 and the second organic buffer layer 252 spaced apart in inorganic barrier layer 240, jointly form thin-film packing structure.Relative second inorganic barrier layer 241 of first inorganic barrier layer 280 is closer to organic luminous layer, and meanwhile, the 3rd inorganic encapsulated layer 242 can be placed in arbitrary inorganic barrier layer position.
On thin-film encapsulation layer, pressure sensitive adhesive 270 is utilized to attach linear polarizing film 260, this linear polarizer plate film 260 and the first inorganic barrier layer 280 in thin-film encapsulation layer are or/and the second inorganic barrier layer 241 is arranged in pairs or groups, form the optical component with rotatory polarization sheet characteristic, eliminate external environmental light to the impact of organic light emitting display deterioration.This optical component compares embodiment one (with reference to figure 1), has better inverse wave length dispersing characteristic, can the impact of elimination surround lighting as much as possible in whole visible wavelength range, makes display effect more excellent.
To sum up, Organic Light Emitting Diode of the present invention (OLED) display, thin-film packing structure is become by using organic buffer layer and the overlapping making of inorganic barrier layer, organic luminescent device is protected, inorganic layer in wherein overlapping can adopt inclined deposition technique to make, make it both as the barrier layer in thin-film package, there is again phase delay effect, outside polaroid is made not need to attach phase retardation film, form same optical component, eliminate external environment influence of light, and the rete quantity reducing organic light emitting diode display surface can be reached, thus reach the effect reducing thickness.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (10)
1. an organic light emitting diode display, comprise the linear polarizing film of substrate, thin-film transistor circuit, organic luminescent device and pressure sensitive adhesive and upper attaching thereof, it is characterized in that, comprise by inorganic barrier layer and the overlapping thin-film encapsulation layer of organic buffer layer between described organic luminescent device and pressure sensitive adhesive, for the protection of described organic luminescent device; Phase delay layer in described linear polarizing film and described inorganic barrier layer forms the optical component with rotatory polarization sheet characteristic.
2. organic light emitting diode display according to claim 1, it is characterized in that, described inorganic barrier layer comprises the first inorganic barrier layer, the second inorganic barrier layer and the 3rd inorganic barrier layer with phase delay effect.
3. organic light emitting diode display according to claim 1, it is characterized in that, phase delay layer in the described optical component with rotatory polarization sheet characteristic, it is the first inorganic barrier layer, or first inorganic barrier layer and the second inorganic barrier layer, the impact of external environmental light on display effect deterioration can be eliminated.
4. organic light emitting diode display according to Claims 2 or 3, is characterized in that, described first inorganic barrier layer, adopts inclined deposition technique to make, can postpone the phase place of 1/4 wavelength.
5. organic light emitting diode display according to Claims 2 or 3, is characterized in that, described second inorganic barrier layer, adopts inclined deposition technique to make, can postpone the phase place of 1/2 wavelength.
6. organic light emitting diode display according to claims 1 to 3, is characterized in that, the first inorganic barrier layer of described inorganic barrier layer and the second inorganic barrier layer, adopts TiO
2, TaOx, CaO, BaO or SiO
2material makes.
7. organic light emitting diode display according to claim 6, is characterized in that, adopts the first inorganic barrier layer that CaO or BaO makes, can as the barrier layer with hygroscopic properties.
8. organic light emitting diode display according to claim 1, it is characterized in that, described organic buffer layer comprises the first organic buffer layer and the second organic buffer layer.
9. organic light emitting diode display according to claim 1 or 8, is characterized in that, the first organic buffer layer of described organic buffer layer, the second organic buffer layer are spaced apart in described inorganic barrier layer.
10. organic light emitting diode display according to Claims 2 or 3, is characterized in that, described first inorganic barrier layer is arranged at the position of arbitrary inorganic barrier layer.
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| CN201310583959.8A CN104659051B (en) | 2013-11-20 | 2013-11-20 | Organic light emitting diode display |
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|---|---|---|---|
| CN201310583959.8A CN104659051B (en) | 2013-11-20 | 2013-11-20 | Organic light emitting diode display |
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| CN104659051A true CN104659051A (en) | 2015-05-27 |
| CN104659051B CN104659051B (en) | 2018-11-23 |
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| CN105304676A (en) * | 2015-09-22 | 2016-02-03 | 深圳市华星光电技术有限公司 | Flexible organic light-emitting device packaging structure and flexible display device |
| WO2016201723A1 (en) * | 2015-06-15 | 2016-12-22 | 深圳市华星光电技术有限公司 | Oled device encapsulation structure and encapsulation method thereof |
| WO2017070889A1 (en) * | 2015-10-29 | 2017-05-04 | Boe Technology Group Co., Ltd. | Display device and fabrication method thereof |
| CN106711174A (en) * | 2016-12-07 | 2017-05-24 | 上海天马微电子有限公司 | Display mother board, flexible display panel, flexible display device and manufacture method |
| CN106802738A (en) * | 2016-12-23 | 2017-06-06 | 上海天马有机发光显示技术有限公司 | A kind of contact panel and display device |
| CN106952941A (en) * | 2017-05-26 | 2017-07-14 | 上海天马有机发光显示技术有限公司 | A kind of display panel, preparation method and electronic equipment |
| WO2018119885A1 (en) * | 2016-12-26 | 2018-07-05 | 武汉华星光电技术有限公司 | Oled film package structure and packaging method |
| CN110246977A (en) * | 2018-03-09 | 2019-09-17 | 上海和辉光电有限公司 | A kind of organic light emitting display panel and preparation method thereof |
| CN114784207A (en) * | 2022-04-08 | 2022-07-22 | 深圳市华星光电半导体显示技术有限公司 | OLED display panel and preparation method thereof |
| CN114784207B (en) * | 2022-04-08 | 2024-04-30 | 深圳市华星光电半导体显示技术有限公司 | OLED display panel and preparation method thereof |
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| WO2018119885A1 (en) * | 2016-12-26 | 2018-07-05 | 武汉华星光电技术有限公司 | Oled film package structure and packaging method |
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| CN106952941A (en) * | 2017-05-26 | 2017-07-14 | 上海天马有机发光显示技术有限公司 | A kind of display panel, preparation method and electronic equipment |
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| CN106952941B (en) * | 2017-05-26 | 2020-10-09 | 上海天马有机发光显示技术有限公司 | Display panel, manufacturing method and electronic equipment |
| CN110246977A (en) * | 2018-03-09 | 2019-09-17 | 上海和辉光电有限公司 | A kind of organic light emitting display panel and preparation method thereof |
| CN114784207A (en) * | 2022-04-08 | 2022-07-22 | 深圳市华星光电半导体显示技术有限公司 | OLED display panel and preparation method thereof |
| CN114784207B (en) * | 2022-04-08 | 2024-04-30 | 深圳市华星光电半导体显示技术有限公司 | OLED display panel and preparation method thereof |
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