WO2004055763A1 - 発光装置及び電子機器 - Google Patents
発光装置及び電子機器 Download PDFInfo
- Publication number
- WO2004055763A1 WO2004055763A1 PCT/JP2003/015705 JP0315705W WO2004055763A1 WO 2004055763 A1 WO2004055763 A1 WO 2004055763A1 JP 0315705 W JP0315705 W JP 0315705W WO 2004055763 A1 WO2004055763 A1 WO 2004055763A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light emitting
- pixel
- light
- pixel portion
- emitting element
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims description 42
- 239000011159 matrix material Substances 0.000 claims description 8
- 239000010408 film Substances 0.000 description 72
- 239000000463 material Substances 0.000 description 37
- 230000001681 protective effect Effects 0.000 description 19
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000007872 degassing Methods 0.000 description 4
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 3
- 239000005001 laminate film Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/44—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
- H01L33/46—Reflective coating, e.g. dielectric Bragg reflector
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
Definitions
- the present invention relates to a light-emitting device provided with a light-emitting element, and in particular, to a portable information terminal such as a portable telephone and a PDA (PeRsonaDigitalTalAssicante) provided with such a light-emitting device.
- a portable information terminal such as a portable telephone and a PDA (PeRsonaDigitalTalAssicante) provided with such a light-emitting device.
- Portable information terminals that have a sub display surface in addition to the original display surface will not only ignore the volume occupied by the module including the backlight etc., but also the substrate occupied by the control IC etc. that drives them. Become. In particular, portable information terminals that have been provided recently have been significantly reduced in size and weight, and have been traded off for higher added value.
- the present invention has been made in view of the above problems, and has as its object to provide a light-emitting device which can perform double-sided display, has a small volume, and can be used as a module.
- a light emitting element represented by an EL element or the like is used for a pixel portion, and two pixel portions are provided at different positions in one light emitting device.
- the first pixel portion light is emitted only from the counter electrode side of the light emitting element.
- the second pixel portion light is emitted only from the pixel electrode side of the light emitting element. That is, the first pixel portion and the second pixel portion have a configuration in which the emission directions are reversed.
- the user may be allowed to select the display surface according to the application.
- a switch element is provided in any of the current paths for supplying light to the light emitting element and light emission of the first pixel portion is used
- supply of current to the second pixel portion is interrupted
- a signal and a signal are respectively supplied to a first driver for operating the first pixel unit, a second driver for operating the second pixel unit, and the first driver and the second driver.
- a light emitting device having a wiring for supplying a voltage, part or all of a wiring for supplying a signal and a voltage to the first driver and the second driver is shared, and the first pixel portion or the second A means for operating one of the two pixel units may be provided so as to switch externally.
- the light emitting device of the present invention comprises:
- a second pixel portion in which a plurality of second pixels are arranged in a matrix on a position different from the first pixel portion on the panel substrate;
- the first pixel portion includes the plurality of first pixels having a first light emitting element that emits light from the surface of the panel substrate in a direction from the back surface of the panel substrate to the surface of the substrate,
- the second pixel unit includes a plurality of second pixels each including a second light emitting element that emits light from the back surface of the panel substrate in a direction from the front surface of the panel substrate to the back surface of the panel substrate. It is characterized by having.
- the first light emitting element has a first pixel electrode, a first electroluminescent layer, and a first counter electrode, The first pixel portion emits light from the first counter electrode side, and the second light emitting element has a second pixel electrode, a second electroluminescent layer, and a second counter electrode.
- the second pixel portion emits light from the second pixel electrode side.
- the direction of light emitted from the first light emitting element and the second light emitting element is determined by the presence or absence of a reflective film.
- a first driving unit that operates the first pixel unit
- a part or all of wirings for supplying a signal and a voltage to the first driving unit and the second driving unit are common,
- the light emitting device is used for an electronic device. (The invention's effect)
- the present invention can provide a thin and lightweight light-emitting device that can perform double-sided display with the above configuration.
- the present invention can provide a thin and lightweight light-emitting device that can perform double-sided display with the above configuration.
- the number of input signals can be reduced.
- the present invention can be applied not only to a light emitting device using an electroluminescent element as a light emitting device, but also to other light emitting devices.
- FIG. 1 is a cross-sectional view illustrating a configuration of a pixel portion of the light emitting device according to the first embodiment.
- FIG. 2 is a cross-sectional view illustrating a configuration of a pixel unit of the light emitting device according to the second embodiment.
- FIG. 3 is a cross-sectional view illustrating a configuration of a pixel portion of the light emitting device according to the third embodiment.
- FIG. 4 is a cross-sectional view illustrating a configuration of a pixel portion of the light emitting device according to the fourth embodiment.
- FIG. 5 is a circuit diagram illustrating a configuration of a pixel portion of the light emitting device.
- FIG. 6 is a diagram showing a configuration of a panel substrate which is the light emitting device of the present invention shown in the first embodiment.
- FIG. 7 is a diagram of a mobile phone using the panel substrate which is the light emitting device of the present invention shown in the first embodiment.
- FIG. 1 is a cross-sectional view of a first pixel portion and a second pixel portion of one light emitting device provided with two pixel portions.
- first pixel portion light is emitted only from the counter electrode side of the light emitting element
- second pixel portion light is emitted only from the pixel electrode side of the light emitting element. That is, the first pixel portion and the second pixel portion have a configuration in which the emission directions are reversed.
- FIG. 1A is a cross-sectional view of one pixel in the first pixel portion
- FIG. 1B is a cross-sectional view of one pixel in the second pixel portion
- FIG. 5 shows an example of a circuit diagram of one pixel in the first pixel portion and the second pixel portion.
- a thin film transistor (ThinFilm Transistor (TFT)) is used as a switch element or a driving element, but there is no particular limitation.
- TFT ThinFilm Transistor
- MOS transistor an organic transistor, a molecular transistor, or the like can be used, and any of them may be used similarly.
- 900 is a pixel
- 901 is a switching TFT
- 902 is a driving TFT
- 903 is a light emitting element.
- A is an anode line
- C is a force source line
- G is a gate line
- S is a source line.
- reference numeral 1000 denotes a substrate, and a region surrounded by a dotted frame 1010 is a driving TFT, which supplies a current to the light emitting element 101 directly or through another circuit element.
- the light emitting element 101 1 is a place where the pixel electrode 100 2, the electroluminescent layer 100 1, and the counter electrode 100 2 are stacked, and emits light in the direction indicated by the light emitting direction 104.
- the pixel electrode 1012 is formed of a reflective film of aluminum or the like, and the light emitting element 101 1 does not emit light in the direction opposite to the light emitting direction 1014.
- the pixel electrode 1012 may have a structure in which a transparent conductive film is stacked on a reflective film and a reflective film.
- the counter electrode 1002 stacked above the electroluminescent layer 1001 is formed of a transparent conductive film such as ITO, and the protective film 1004 is formed of a transparent film such as a carbon nitride film.
- 1003 is an organic tree It is a fat film.
- a region surrounded by a dotted frame 102 is a driving TFT, and supplies a current to the light emitting element 102 directly or through another circuit element.
- the light emitting element 1021 is a portion where the pixel electrode 1022, the electroluminescent layer 1001, and the counter electrode 1002 are stacked, and emits light in the direction represented by the light emitting direction 1024.
- the pixel electrode 102 is formed of a transparent conductive film, and the film formed below the pixel electrode 102 and the substrate 100 are formed of a material that transmits light.
- the reflective film 1005 is formed on the protective film 1004, and reflects light emitted from the light emitting element 1002 1 in a direction opposite to the light emitting direction 1024. Play a role.
- Reference numeral 1003 denotes an organic resin film.
- the electroluminescent layer 1001 is the same in FIGS. 1A and 1B, the electroluminescent layer may be formed of a different material, or the electroluminescent layer may be formed of a different material for each pixel. It may be formed.
- the protective film 104 is the same layer, but the protective film may be formed of a different material.
- the electroluminescent layer 1001 may be any material of a low molecular material, a high molecular material, and a medium molecular material.
- FIG. 2 shows one embodiment of the present invention.
- FIG. 2 is a cross-sectional view of a first pixel portion and a second pixel portion of one light emitting device provided with two pixel portions.
- the first pixel portion light is emitted only from the counter electrode side of the light emitting element
- the second pixel portion light is emitted only from the pixel electrode side of the light emitting element. That is, the first pixel portion and the second pixel portion have a configuration in which the emission directions are reversed.
- FIG. 2A is a cross-sectional view of one pixel in the first pixel portion
- FIG. 2B is a cross-sectional view of one pixel in the second pixel portion
- FIG. 5 shows an example of a circuit diagram of one pixel in the first pixel portion and the second pixel portion.
- 900 is a pixel
- 901 is a switching TFT
- 902 is a driving TFT
- 903 is a light emitting element.
- A is an anode line
- C is a force source line
- G is a gate line
- S is a source line.
- reference numeral 2000 denotes a substrate, and a region surrounded by a dotted-line frame 201 denotes a driving TFT, and a current is supplied to the light emitting element 201 directly or through another circuit element. Supply.
- the light emitting element 201 is where the pixel electrode 201, electroluminescent layer 201, and counter electrode 201 are stacked, and emits light in the direction indicated by the light emitting direction 201 I do.
- the pixel electrode 201 is formed of a reflective film of aluminum or the like, and does not emit light in a direction opposite to the light emitting direction 201 of the light emitting element 201.
- the pixel electrode 201 may have a structure in which a reflective film and a transparent conductive film are stacked on the reflective film.
- the counter electrode 200 13 stacked above the electroluminescent layer 201 is a transparent conductive film and a protective film 200. 4 is formed of a permeable film such as a carbon nitride film.
- Reference numeral 203 denotes an organic resin film.
- a region surrounded by a dotted line frame 202 is a driving TFT, and a current is supplied to the light emitting element 202 directly or through another circuit element.
- the light emitting element 2021 is where the pixel electrode 2022, the electroluminescent layer 2001, and the counter electrode 2023 are stacked, and emits light in the direction represented by the light emitting direction 2024.
- the opposing electrode 202 is formed of a reflective film of aluminum or the like, and does not emit light in the direction opposite to the light emitting direction 204.
- the pixel electrode 202 is formed of a transparent conductive film, and the film formed below the pixel electrode 202 and the substrate 200 are formed of a material that transmits light.
- Reference numeral 203 denotes an organic resin film.
- the electroluminescent layer 2001 is the same layer in FIGS. 2A and 2B, the electroluminescent layer may be formed of a different material, or the electroluminescent layer may be formed of a different material for each pixel. It may be formed.
- the protective film 204 is the same layer, but the protective film may be formed of a different material.
- the counter electrode 201 and the counter electrode 202 are different layers, but they may be electrically connected.
- the electroluminescent layer 203 may be any material of a low molecular material, a high molecular material, and a medium molecular material.
- the protective film laminated film, UV-cured
- the protective film with high airtightness and low degassing so as not to be further exposed to the outside air It is preferable to package (enclose) it with a translucent covering material or a resin film.
- FIG. 3 shows one embodiment of the present invention.
- FIG. 3 is a cross-sectional view of a first pixel portion and a second pixel portion of one light emitting device provided with two pixel portions.
- first pixel portion light is emitted only from the counter electrode side of the light emitting element
- second pixel portion light is emitted only from the pixel electrode side of the light emitting element. That is, the first pixel portion and the second pixel portion have a configuration in which the emission directions are reversed.
- FIG. 3A is a cross-sectional view of one pixel in the first pixel portion
- FIG. 3B is a cross-sectional view of one pixel in the second pixel portion
- FIG. 5 shows an example of a circuit diagram of one pixel in the first pixel portion and the second pixel portion.
- 900 is a pixel
- 901 is a switching TFT
- 902 is a driving TFT
- 903 is a light emitting element.
- A is an anode line
- C is a force source line
- G is a gate line
- S is a source line.
- reference numeral 300 denotes a substrate, and a region surrounded by a dotted frame 310 is a driving TFT, and a current is supplied to the light emitting element 301 directly or through another circuit element. Supply.
- the light emitting element 310 1 is where the pixel electrode 310 2, the electroluminescent layer 300 1, and the counter electrode 300 2 are stacked, and emits light in the direction indicated by the light emitting direction 310 4 I do.
- the pixel electrode 301 is formed of a reflective film of aluminum or the like, and the light emitting element 301 is opposite to the light emitting direction 304. It does not emit light in any direction.
- the pixel electrode 301 may have a structure in which a transparent conductive film is stacked on a reflective film and a reflective film.
- the counter electrode 3002 stacked above the electroluminescent layer 3001 is a transparent conductive film
- the protective film 304 is a permeable film such as a carbon nitride film
- the color filter 3006 is a transparent film. It is formed of a color resist or the like. If a different material is used for the pixel of the color filter 306, light can be emitted in a different color for each pixel.
- Reference numeral 3003 denotes an organic resin film.
- a region surrounded by a dotted line frame 320 is a driving TFT, and supplies a current to the light emitting element 302 directly or through another circuit element.
- the drive TFT 300 in FIG. 3B has an LDD region.
- the light emitting element 3002 1 is a portion where the pixel electrode 3002, the electroluminescent layer 3001, and the counter electrode 3002 are laminated, and the light emitting direction is the direction indicated by the light emitting direction 3024. Emits light.
- the pixel electrode 302 is formed of a transparent conductive film, and the film formed below the pixel electrode 302 and the substrate 300 are formed of a material that transmits light.
- the reflective film 3005 is formed on the protective film 304, and serves to reflect light emitted from the light emitting element 3021 in the direction opposite to the light emitting direction 3042. Play a part.
- Reference numeral 303 denotes an organic resin film.
- the protective film 304 is the same layer in FIGS. 3A and 3B, the protective film may be formed of a different material.
- the electroluminescent layer 3001 is the same layer, but the electroluminescent layer may be formed of a different material, or the electroluminescent layer may be formed of a different material for each pixel. A layer may be formed. For the color filter 3006, a different material may be used for each pixel.
- the electroluminescent layer 301 may be any material of a low molecular material, a high molecular material, and a medium molecular material.
- packaging with a protective film laminate film, UV curable resin film, etc.
- a translucent cover material Encapsulation
- FIG. 4 shows an embodiment of the present invention.
- FIG. 4 is a cross-sectional view of a first pixel portion and a second pixel portion of one light emitting device provided with two pixel portions.
- the first pixel portion light is emitted only from the counter electrode side of the light emitting element
- the second pixel portion light is emitted only from the pixel electrode side of the light emitting element. That is, the first pixel portion and the second pixel portion have a configuration in which the emission directions are reversed.
- FIG. 4A is a cross-sectional view of one pixel in the first pixel portion
- FIG. 4B is a cross-sectional view of one pixel in the second pixel portion
- FIG. 5 shows an example of a circuit diagram of one pixel in the first pixel portion and the second pixel portion.
- a thin film transistor is used here as a switch element or a driving element
- a MOS transistor an organic transistor, a molecular transistor, or the like can be used, and any of them may be used similarly.
- 900 is a pixel
- 901 is a switching TFT
- 902 is a driving TFT
- 903 is a light emitting element.
- A is an anode line
- C is a force source line
- G is a gate line
- S is a source line.
- reference numeral 400 denotes a substrate, and a region surrounded by a dotted frame 410 denotes a driving TFT, which supplies a current to the light emitting element 410 directly or through another circuit element. Supply.
- the light emitting element 4001 is where the pixel electrode 4102, the electroluminescent layer 4001, and the counter electrode 4002 are laminated, and emits light in the direction indicated by the light emitting direction 41014. I do.
- the pixel electrode 410 is formed of a transparent conductive film. However, even if light is emitted in the direction opposite to the light emission direction 410, it is reflected by the reflective film 410, so that the substrate No light exits from below 400.
- the counter electrode 4002 stacked above the electroluminescent layer 4001 is formed of a transparent conductive film
- the protective film 4004 is formed of a transparent film such as a carbon nitride film.
- Reference numeral 4003 denotes an organic resin film.
- an area surrounded by a dotted line frame 420 is a driving TFT, which supplies a current to the light emitting element 402 directly or through another circuit element.
- the light emitting element 4002 1 is a portion where the pixel electrode 4002, the electroluminescent layer 4001, and the counter electrode 4002 are laminated, and emits light in the direction represented by the light emitting direction 4002. You.
- the pixel electrode 402 is formed of a transparent conductive film, and a film formed below the pixel electrode 402 and the substrate 400 are formed of a material that transmits light.
- the reflection film 4005 is formed on the protective film 4004, and reflects light emitted from the light emitting element 4021 in the direction opposite to the light emission direction 4204. Play a role.
- Reference numeral 4003 denotes an organic resin film.
- the electroluminescent layer 4001 is the same layer, but the electroluminescent layer may be formed of a different material, or the electroluminescent layer may be formed of a different material for each pixel. It may be formed.
- the protective film 404 is the same layer, but the protective film may be formed of a different material.
- the electroluminescent layer 4001 may be any of a low molecular material, a high molecular material, and a medium molecular material.
- a protective film laminate film, ultraviolet curable resin film, etc.
- a translucent cover material Encapsulation
- a panel substrate which is a part of the light emitting device of the present invention will be described.
- FIG. 6 (A) is a top view of the panel substrate when the substrate 600 is on the lower side and the counter substrate 600 is on the upper side
- FIG. 6 (B) is when the panel substrate is viewed from the side.
- FIG. A first pixel portion 60010 is provided over a substrate 6000, and a second pixel portion 60020 is provided at a position different from the first pixel portion 60010.
- the light emission direction of the first pixel portion 60010 is 60013, and the light emission direction of the second pixel portion 60020 is 6023, and the light emission direction is reversed.
- a plurality of first pixels are arranged in a matrix
- the second pixel portion 6020 a plurality of second pixels are arranged in a matrix.
- the structure of each of the first pixel and the second pixel is as described in Embodiment Modes 1 to 4.
- the space surrounded by the surface of the substrate 6000, the sealing material 6001, and the counter substrate 6002 is sealed with a filler.
- the first pixel portion 6010 is connected to a source signal line drive circuit 6011 and a gate signal line drive circuit 6012a, 6012b, and emits light from the first pixel portion 6010. To supply the necessary signals.
- the second pixel portion 6020 is connected to the source signal line driver circuit 602 1 and the gate signal line driver circuits 6022 a and 6022 b, and supplies a signal necessary for causing the second pixel portion 6020 to emit light. are doing.
- a source signal line drive circuit and a gate signal line drive circuit are provided respectively, but the first pixel portion 6010 and the A source signal line driver circuit and a gate signal line driver circuit common to the second pixel portion 6020 may be provided.
- the signals required to drive the source signal line driver circuits 6011, 6021, and the gate signal line driver circuits 6012a, 6012b, 6022a, 6022b are passed through the FPC 6003. Voltage 'current is supplied.
- Wiring for supplying signals and voltages to 12b, 6022a, and 6022b can be shared as necessary to reduce the number of wires.
- the wiring for supplying a signal to the driving circuit is called a signal line
- the wiring for supplying a voltage to the driving circuit is called a power supply line.
- the signals and voltage necessary for driving the source signal line drive circuit 6011 and the gate signal line drive circuits 6012a and 6012b are supplied. And the signals, voltages, and currents necessary to drive the source signal line drive circuit 6021 and the gate signal line drive circuits 6022a and 6022b only when the second pixel portion 6020 is operated. May be supplied.
- the source signal line driver circuit 6 01 1 that operates the first pixel portion and the second pixel portion A part or all of the wiring for supplying a signal and a voltage to the source signal line driving circuit 6021 for operating the first and second pixel units is shared. It is also possible to provide a means for causing such a configuration that switching is performed externally. Signals are supplied to gate signal line driving circuits 6012a and 6012b for operating the first pixel portion and gate signal line driving circuits 6022a and 6022b for operating the second pixel portion. A configuration is adopted in which a part or all of the wiring for supplying a voltage is shared, and means for operating either the first pixel portion or the second pixel portion is provided, and switching is performed externally. May be.
- the wiring for supplying the video signal may be common to the source signal line driver circuit 6011 and the source signal line driver circuit 6021.
- FIG. 7 shows an example in which the panel substrate is used for an electronic device, for example, a foldable mobile phone.
- the foldable mobile phone in FIG. 7 includes a first housing 6100 and a second housing 6200.
- the first housing 6100 includes the speaker 6101, the display controller 6102, and the panel substrate of this embodiment.
- 6000 indicates a substrate and 6002 indicates a counter substrate.
- the second housing 6200 includes an antenna 6201, a microphone 6202, a main body driving module 6203, an operation button module 6204, and a battery 6205.
- FIG. 7A shows a state in which the foldable mobile phone is opened, and the user can see the image projected on the i-th pixel portion 6010.
- FIG. 7B shows a state in which the foldable mobile phone is closed, and the user can see the image projected on the second pixel portion 6020. At this time, since the user cannot see the first pixel portion 6010, there is no need to display an image on the first pixel portion 60010.
- FIG. 7C is a cross-sectional view in a state where the foldable mobile phone is opened.
- the light emitting direction of the first pixel portion 6010 is 60 13 and the light emitting direction of the second pixel portion 6020 is 6023. is there.
- a double-sided display is provided for a light-emitting device including a light-emitting element, particularly, a portable information terminal such as a mobile phone or a PDA (Personal Digital 1 Assistance) including the light-emitting device. It is possible to provide a thin and lightweight light emitting device.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004560612A JP4549864B2 (ja) | 2002-12-13 | 2003-12-09 | 発光装置、電子機器及び携帯情報端末 |
AU2003289259A AU2003289259A1 (en) | 2002-12-13 | 2003-12-09 | Light-emitting device and electronic device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-361853 | 2002-12-13 | ||
JP2002361853 | 2002-12-13 |
Publications (1)
Publication Number | Publication Date |
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WO2004055763A1 true WO2004055763A1 (ja) | 2004-07-01 |
Family
ID=32588140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/015705 WO2004055763A1 (ja) | 2002-12-13 | 2003-12-09 | 発光装置及び電子機器 |
Country Status (6)
Country | Link |
---|---|
US (4) | US7265383B2 (ja) |
JP (1) | JP4549864B2 (ja) |
CN (1) | CN100390835C (ja) |
AU (1) | AU2003289259A1 (ja) |
TW (1) | TWI350404B (ja) |
WO (1) | WO2004055763A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007095733A (ja) * | 2005-09-27 | 2007-04-12 | Seiko Epson Corp | エレクトロルミネッセンス装置および電子機器 |
JP2007148378A (ja) * | 2005-11-28 | 2007-06-14 | Au Optronics Corp | 両面有機elディスプレイ |
JP2014191329A (ja) * | 2013-03-28 | 2014-10-06 | Japan Display Inc | 両面表示装置 |
JP2015204237A (ja) * | 2014-04-15 | 2015-11-16 | 株式会社ジャパンディスプレイ | 有機エレクトロルミネッセンス表示装置および有機エレクトロルミネッセンス表示装置の製造方法 |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
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Also Published As
Publication number | Publication date |
---|---|
CN100390835C (zh) | 2008-05-28 |
US7265383B2 (en) | 2007-09-04 |
US7615785B2 (en) | 2009-11-10 |
TWI350404B (en) | 2011-10-11 |
JP4549864B2 (ja) | 2010-09-22 |
JPWO2004055763A1 (ja) | 2006-04-20 |
US20070298851A1 (en) | 2007-12-27 |
AU2003289259A1 (en) | 2004-07-09 |
CN1726522A (zh) | 2006-01-25 |
US20130176196A1 (en) | 2013-07-11 |
US20100019245A1 (en) | 2010-01-28 |
US20040245529A1 (en) | 2004-12-09 |
US8389997B2 (en) | 2013-03-05 |
TW200428100A (en) | 2004-12-16 |
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