WO2010030074A9 - 키패드 장치, 이를 구비하는 모바일 기기 및 키패드 제어 방법 - Google Patents
키패드 장치, 이를 구비하는 모바일 기기 및 키패드 제어 방법 Download PDFInfo
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- WO2010030074A9 WO2010030074A9 PCT/KR2009/003821 KR2009003821W WO2010030074A9 WO 2010030074 A9 WO2010030074 A9 WO 2010030074A9 KR 2009003821 W KR2009003821 W KR 2009003821W WO 2010030074 A9 WO2010030074 A9 WO 2010030074A9
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- keypad
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- electrode
- touch
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
- H10K2102/3023—Direction of light emission
- H10K2102/3031—Two-side emission, e.g. transparent OLEDs [TOLED]
Definitions
- the present invention relates to a keypad, and more particularly, a keypad device capable of slimming and compacting a product structure by applying an OLED or TOLED (transparent OLED), a mobile device and a keypad control having the same. It is about a method.
- a mobile communication terminal such as a mobile phone is equipped with a keypad required for not only searching for various information but also for transmitting and receiving or inputting text.
- a base sheet is attached to the upper surface of a printed circuit board (PCB) printed with a circuit pattern, and an LED lamp for attaching a dome switch and a backlight is installed on the upper surface of the printed circuit board.
- PCB printed circuit board
- such a conventional keypad has a problem in that the thickness cannot be reduced due to its structural characteristics.
- the PCB constituting the keypad must have a minimum thickness to implement the circuit pattern, and the dome switch must also be maintained at a certain height to be restored after pressing.
- the thickness of the entire keypad is always There is a problem that must be maintained at a certain thickness or more.
- the conventional keypad structure when applied to a mobile communication terminal such as a mobile phone, the overall thickness and size of the mobile phone mobile communication terminal become large, and thus, slim and compact cannot be achieved.
- the present invention has been made to solve the above problems, the object of the present invention is to provide a keypad device that can slim and compact the structure of the product by applying OLED or TOLED (transparent OLED). have.
- Another object of the present invention to provide a mobile device having a keypad device as described above.
- Still another object of the present invention is to provide a method of controlling the keypad device as described above.
- the touch panel, the TOLED panel located below the touch panel, the touch panel and the TOLED panel is electrically connected, the touch of the touch panel
- the TOLED panel may further include a substrate, a first electrode formed on the substrate, an organic material layer formed on the first electrode, a second electrode formed on the organic material layer, and between the organic material layer and the second electrode and the It is formed on at least one of the upper portion of the second electrode, and may include a light-transmitting layer including any one of oxide-based, nitride-based, salts, and complexes thereof.
- the oxide series may include any one of MoO 3, ITO, IZO, IO, ZnO, TO, TiO 2 , SiO 2 , WO 3 , Al 2 O 3 , Cr 2 O 3 , TeO 2 , SrO 2 have.
- the nitride series may include any one of SiN and AIN.
- the salts may include any one of Cs 2 CO 3 , LiCO 3 , KCO 3 , NaCO 3 , LiF, CsF, ZnSe.
- the thickness of the light transmitting layer is preferably formed in less than 0.1nm 100nm.
- the organic material layer may include an electron transport layer formed by doping any one of metals having low work function and composites thereof to facilitate electron injection from the second electrode.
- the metals having a low work function may include any one of Cs, Li, Na, K, and Ca.
- the complex thereof may include any one of Li-Al, LiF, CsF, and Cs 2 CO 3 .
- the TOLED panel according to the present invention may exhibit a transmittance of 70 to 99% according to the wavelength (nm).
- the control unit detects an electrical signal for a touch point of the touch panel, when the electrical signal of the touch panel is detected corresponding to the touch point And applying a driving voltage to a corresponding pixel of the TOLED panel to emit the corresponding pixel, and reflecting the keypad information corresponding to the emitted pixel of the TOLED panel to display the keypad sheet with the keypad information patterned thereon.
- a keypad device including: a touch panel, an OLED panel positioned below the touch panel, and having keypad information patterned and displaying the keypad information corresponding to emitted pixels; And a controller electrically connected to the touch panel and the OLED panel and configured to sense an electric signal for a touch point of the touch panel and to emit a corresponding pixel of the OLED panel corresponding to the touch point.
- the OLED panel may include a TOLED panel.
- the control unit detects an electrical signal for a touch point of the touch panel, when the electrical signal of the touch panel is detected corresponding to the touch point
- the method may include applying a driving voltage to a corresponding pixel of the OLED panel to emit a corresponding pixel, and displaying the keypad information corresponding to the emitted pixel by the OLED panel patterned with keypad information.
- a mobile device for achieving the above object, for example, a mobile communication terminal such as a mobile phone, PMP, etc. may be provided with a keypad device as described above.
- the OLED or TOLED transparent OLED
- a light emitting layer including any one of an oxide-based, nitride-based, salt, and a composite thereof is formed between at least one of an organic material layer, a second electrode (cathode electrode), and an upper portion of the second electrode to form a TOLED panel.
- the transmittance can be improved while implementing a double-sided light emitting TOLED.
- the light-transmitting layer of a material containing any one of oxide-based, nitride-based, salts and composites thereof, it is possible to prevent the increase in the internal resistance of the second electrode to improve the electrical performance of the product.
- FIG. 1 is an exploded perspective view showing a main portion of a keypad device according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing the configuration of a keypad device according to an embodiment of the present invention.
- FIG 3 is an exemplary diagram for describing an operating state when a touch pad is not operated in a keypad device according to an embodiment of the present invention.
- FIG. 4 is an exemplary diagram for describing an operating state when a touch pad is operated in a keypad device according to an embodiment of the present invention.
- FIG. 5 is a flowchart illustrating a control method of a keypad device according to an embodiment of the present invention.
- FIG. 6 is an exploded perspective view illustrating a main part of a keypad device according to another embodiment of the present invention.
- FIG. 7 is a block diagram showing the configuration of a keypad device according to another embodiment of the present invention.
- FIG. 8 is an exemplary diagram for describing an operating state when a touch pad is not operated in a keypad device according to another embodiment of the present invention.
- FIG. 9 is an exemplary view for explaining an operating state when a touch pad is operated in a keypad device according to another embodiment of the present invention.
- FIG. 10 is a flowchart illustrating a control method of a keypad device according to another embodiment of the present invention.
- FIG. 11 is a cross-sectional view of a TOLED panel of the keypad device according to the present invention.
- FIG. 12 is a graph illustrating transmittance according to the light transmitting layer of the TOLED panel.
- FIG. 13 is a luminance graph of a light transmitting layer of a TOLED panel.
- FIG. 14 is a graph showing transmittance when a light-transmitting layer is formed of an oxide series, salts, and composites thereof in a TOLED panel.
- 15 is a flowchart illustrating a method of manufacturing a TOLED of a keypad device according to the present invention.
- FIG. 1 is an exploded perspective view showing a main portion of a keypad device according to an embodiment of the present invention
- Figure 2 is a block diagram showing the configuration of a keypad device according to an embodiment of the present invention.
- a keypad device includes a touch panel 10, a TOLED panel 20, a reflective sheet 30, a controller 40, and the like.
- the touch panel 10 is touched by a capacitive method of detecting a voltage difference between the XY electrode patterns by pressing an analyzer by a pen or a hand, pressing the conductive film with the force, and touching the XY electrode pattern.
- Signals are input devices that generate electrical signals for points. Since the touch panel 10 as described above can be understood by a known technique, detailed configurations and the like are omitted.
- the touch panel 10 is electrically connected to the driving IC 20a and the controller 40 of the TOLED panel 20 which will be described later.
- the electrical signal generated by the touch panel 10 drives the electrode of the corresponding pixel of the TOLED panel 20 corresponding to the touch point via the controller 40 which executes the program.
- the transparent organic light emitting diode (TOLED) panel 20 coats the hole transport layer, the light emission, and the electron transport layer on the ITO transparent positive electrode, and then thinly coats Mg: Ag (composition ratio 5:95) within 100 to form a transparent negative electrode. It is then a transparent OLED panel manufactured by coating an ITO film on the negative electrode for conductivity compensation, acting as a protective layer and maintaining transparency.
- the TOLED panel 20 as described above will be described in more detail when described with reference to FIGS. 11 to 15.
- the TOLED panel 20 is positioned below the touch panel 10, and pixels corresponding to the touch points of the touch panel 10 emit light.
- the driver IC 20a connected to the controller 40 is mounted on the TOLED panel 20.
- the reflective sheet 30 is positioned under the TOLED panel 20 to reflect and display keypad pattern 30a information corresponding to the lighted pixels of the TOLED panel 20.
- the keypad information 30a includes Korean consonant vowels, English alphabets, numbers, special characters, etc., and the respective areas are partitioned and patterned on the reflective sheet 30. Can be.
- the controller 40 is electrically connected to the touch panel 10 and the TOLED panel 20, and detects an electrical signal for a touch point of the touch panel 10 to correspond to the TOLED panel 20 corresponding to the touch point.
- a voltage is applied to the driving IC 20a of the TOLED panel 20 to emit light of the pixel.
- the mobile device of the present invention includes a TOLED panel 20 and a touch panel 10 on top of a thin reflective sheet 30 on which keypad information is patterned, thereby emitting lighted pixels of the TOLED panel 20.
- a keypad device according to an embodiment of the present invention may be provided to reflect and display keypad information corresponding to the reflective sheet 30. Therefore, by applying the TOLED panel 20 and the reflective sheet 30 on which the keypad information is patterned to the keypad, the structure of a mobile device product such as a mobile phone or a PMP can be made slim and compact.
- FIG. 3 is an exemplary diagram for describing an operating state when a touch pad is inoperative in a keypad device according to an embodiment of the present invention
- FIG. 4 is an exemplary diagram for describing an operating state during a touch pad in operation of a keypad device.
- 5 is a flowchart illustrating a control method of a keypad device.
- the touch panel 10 of the keypad device When the touch panel 10 of the keypad device is inoperative, that is, when the user does not touch the touch panel 10, no electric signal is generated from the touch panel 10, so that the entire area of the TOLED panel 20 does not emit light. The entire keypad information is not displayed. Alternatively, as shown in FIG. 3, a minimum electric signal is generated in the touch panel 10 so that the entire area of the TOLED panel 20 is lightly emitted, and the keypad information is patterned by the reflective sheet 30. Is reflected and displayed weakly.
- the touch panel 10 when a user presses a desired touch point of the touch panel 10, the touch panel 10 operates to generate an electrical signal related to the touch point.
- the controller 40 detects whether an electrical signal is generated with respect to the touch point of the touch panel 10 (S101). More specifically, the touch panel 10 is a capacitive method of detecting a voltage difference between the XY electrode patterns by pressing an analyzer by a pen or a hand, pressing the conductive film with the force, and contacting the XY electrode patterns. It generates a signal electrical signal at the touch point. The electric signal generated in this way is detected by the control unit 40 for executing a program.
- the controller 40 detects an electrical signal with respect to the touch point of the touch panel 10
- the controller 40 applies a driving voltage to the corresponding pixel of the TOLED panel 20 corresponding to the touch point to touch the touch panel 10. Only pixels of the TOLED panel 20 corresponding to the point are emitted (S102).
- the reflective sheet 30 on which the keypad information is patterned reflects only keypad information corresponding to the lighted pixel of the TOLED panel 20 so as to be displayed brightly (S103).
- the entire area of the TOLED panel 20 emits light lightly, and only the corresponding pixel position of the TOLED panel 20 emits light brightly so that only the keypad information is reflected and displayed brightly.
- FIG. 6 is an exploded perspective view showing a main portion of a keypad device according to another embodiment of the present invention
- Figure 7 is a block diagram showing the configuration of the keypad device.
- the keypad device includes a touch panel 10, an OLED 21, a controller 40, and the like.
- the OLED (Organic Light Emitting Diode) panel 21 is a self-luminous phenomenon in which electrons and holes injected from the cathode and the anode (charged particles corresponding to the electrons) are combined in an organic material to emit light, or organic light emission using the phenomenon It is a diode. Since the OLED panel 21 can be understood by a known technique, detailed configurations and the like are omitted.
- the OLED panel 21 is positioned under the touch panel 10 to emit pixels corresponding to the touch points of the touch panel 10 and to display keypad pattern 21a information corresponding to the emitted pixels.
- the keypad information includes Korean consonant vowels, English alphabets, numbers, special characters, and the like, and the respective regions may be partitioned and patterned on the OLED panel 21.
- the OLED panel 21 is mounted with a driving IC 20b connected to the controller 40 to be described later.
- the controller 40 is electrically connected to the touch panel 10 and the OLED panel 21, and detects an electrical signal with respect to the touch point of the touch panel 10 to correspond to the OLED panel 21 corresponding to the touch point.
- a voltage is applied to the driving IC 20b of the OLED panel 21 to emit light of the pixel.
- the mobile device of the present invention includes a touch panel 10 on the top of the OLED panel 21 where the keypad information is patterned to display keypad information corresponding to the lighted pixels of the OLED panel 21.
- a keypad device according to another embodiment of the present invention may be provided. Accordingly, by applying the OLED panel 21 patterned with keypad information to the keypad, the structure of a mobile device product such as a mobile phone or a PMP can be made slim and compact.
- FIG. 8 is an exemplary diagram for describing an operating state when a touch pad is inoperative in a keypad device according to another embodiment of the present invention
- FIG. 9 is an exemplary diagram for describing an operating state during a touch pad in operation of a keypad device.
- 10 is a flowchart for explaining a control method of a keypad device.
- the touch panel 10 of the keypad device When the touch panel 10 of the keypad device is inoperative, that is, when the user does not touch the touch panel 10, no electric signal is generated from the touch panel 10, so that the entire area of the OLED panel 21 does not emit light. The entire keypad information is not displayed. Alternatively, as shown in FIG. 8, a minimum electric signal is generated in the touch panel 10 so that the entire area of the OLED panel 21 is lightly emitted and the entire keypad information patterned on the OLED panel 21 is weakly displayed. .
- the touch panel 10 when a user presses a desired touch point position of the touch panel 10, the touch panel 10 operates to generate an electrical signal related to the touch point pressed.
- the controller 40 detects whether an electrical signal is generated for the touch point of the touch panel 10 (S201).
- the controller 40 detects an electrical signal with respect to the touch point of the touch panel 10
- the controller 40 applies a driving voltage to the corresponding pixel of the OLED panel 21 corresponding to the touch point to touch the touch panel 10. Only pixels of the OLED panel 21 corresponding to the point are emitted (S202).
- the OLED panel 21 in which the keypad information is patterned brightly displays only keypad information corresponding to the emitted pixel (S203).
- the entire area of the OLED panel 21 emits light lightly and only the pixel position touched more brightly emits light so that only the keypad information is displayed brightly.
- FIG. 11 is a cross-sectional view of a TOLED panel of the keypad device according to the present invention.
- the TOLED panel 20 of the keypad device includes a substrate 100, a first electrode 110, a second electrode 120, an organic material layer 130, and a light-transmitting layer 140. And the like.
- the substrate 100 supports the first electrode 110, the second electrode 120, the organic layer 130, and the light transmitting layer 140.
- the substrate 100 uses a glass material or a plastic material having transparency to allow light emitted therethrough.
- the first electrode 120 is also commonly referred to as a lower electrode, and is formed on the substrate 100.
- the first electrode 110 is an anode, which is an anode, and is formed on the substrate 100 by thermal deposition using a sputtering method, an ion plating method, an electron gun, or the like. Is formed.
- the first electrode 110 according to the embodiment of the present invention uses a transmissive indium tin-oxide electrode, but a transmissive indium zin-oxide electrode is used. It may be.
- the second electrode 120 is also commonly referred to as an upper electrode facing the first electrode 110, and is formed on the organic layer 130.
- the second electrode 120 is a cathode, which is a cathode opposite to the first electrode 110, which is an anode.
- the second electrode 120 selects one of silver (Ag), aluminum (Al), and magnesium-silver (Mg: Ag) alloy, which is a metal having transparency.
- the organic layer 130 is interposed between the first electrode 110 and the second electrode 120 to emit light by energization between the first electrode 110 and the second electrode 120.
- the organic material layer 130 is a hole injection layer (HIL) 131, a hole transporting layer (HTL) (hole injection layer (HTL)) so as to emit light by energization between the first electrode 110 and the second electrode 120 ( 133, an emission layer (EML) 135, an electron transporting layer (ETL) 137, and an electron injection layer (EIL) 139.
- HIL hole injection layer
- HTL hole transporting layer
- EIL electron injection layer
- the organic layer 130 may be spin coated, thermal evaporation, spin casting, sputtering, e-beam evaporation and chemical vapor deposition. It is interposed between the first electrode 110 and the second electrode 120 by a chemical vapor deposition (CVD) method or the like.
- CVD chemical vapor deposition
- the hole injection layer 131 plays a role of injecting holes from the first electrode 110, and the hole transport layer 133 has holes injected from the hole injection layer 131 from the electrons of the second electrode 120. It serves as a movement of holes to meet.
- the electron injection layer 139 serves to inject electrons from the second electrode 120, and the electron transfer layer 137 moves electrons injected from the electron injection layer 139 from the hole transport layer 133. It serves as a movement path of electrons to meet the hole and the light emitting layer 135.
- the electron transport layer 137 may be formed by doping any one of metals having low work function and complexes thereof to facilitate electron injection from the second electrode 120, and this may be the presence or absence of the electron injection layer 139. All can be applied regardless.
- the metals having a low work function may include Cs, Li, Na, K, Ca, and the like, and the complex thereof may include Li-Al, LiF, CsF, Cs 2 CO 3 , and the like.
- the light emitting layer 135 is interposed between the hole transport layer 133 and the electron transport layer 137 to emit light by holes from the hole transport layer 133 and electrons from the electron transport layer 137. That is, the light emitting layer 135 emits light by holes and electrons which meet at the interface with the hole transport layer 133 and the electron transport layer 137, respectively.
- the transparent layer 140 may be formed between at least one of the organic layer 130 and the second electrode 120 and the upper portion of the second electrode 120.
- the light transmitting layer 140 may be formed on both the top and bottom surfaces of the second electrode 120, or may be formed on only one of the bottom and top surfaces of the second electrode 120.
- a configuration in which the light transmitting layer 140 is formed on both the upper and lower surfaces with the second electrode 120 interposed therebetween is not limited thereto.
- the configuration formed only one can be applied equally.
- the light transmission layer 140 includes a first light transmission layer 141 formed between the organic layer 130 and the second electrode 120, and a second light transmission layer 142 formed on the second electrode 120. can do.
- the first light transmission layer 141 may be formed between the electron injection layer 139 and the second electrode 120 of the organic material layer 130, or may be formed on the electron injection layer 139 itself.
- the second light transmission layer 142 may be stacked on an upper surface of the second electrode 120 opposite to the first light transmission layer 141.
- the light transmitting layer 140 functions to allow the second electrode 120 to have a high transmittance while having a transmittance.
- the light transmitting layer 140 is formed of a thin film to reduce the sheet resistance of the second electrode 120, thereby preventing the performance degradation of the TOLED panel 20.
- the characteristics of the light-transmitting layer 140 will be described in detail with reference to FIGS. 12 to 14 after the oxide-based, nitride-based, salts, and composites thereof will be described later.
- the light transmitting layer 140 of the present invention may include any one of oxide-based, nitride-based, salts, and composites thereof.
- the oxide series may include MoO 3, ITO, IZO, IO, ZnO, TO, TiO 2 , SiO 2 , WO 3 , Al 2 O 3 , Cr 2 O 3 , TeO 2 , SrO 2 , and the like.
- the nitride series may include SiN, AIN, and the like.
- the salts may include Cs 2 CO 3 , LiCO 3 , KCO 3 , NaCO 3 , LiF, CsF, ZnSe and the like.
- the second electrode 120 may include all materials that allow the second electrode 120 to have a high transmittance while being transparent.
- the light transmitting layer 140 may be made of the same material as the first light transmitting layer 141 and the second light transmitting layer 142, but may be made of different materials.
- the first light transmitting layer 141 may include an oxide series and the second light transmitting layer 142 may include a nitride series, a salt, and a combination thereof.
- the first light transmission layer 141 may include a nitride series
- the second light transmission layer 142 may include an oxide series, salts, or a combination thereof.
- the first light transmission layer 141 may include salts
- the second light transmission layer 142 may include an oxide-based, nitride-based, and composites thereof.
- the thickness of the light transmitting layer 140 is preferably formed in less than 0.1nm 100nm. For example, the reason for limiting the thickness value of the light-transmitting layer 140 will be described. If the thickness of the light-transmitting layer 140 is smaller than 0.1 nm, the transmittance increases, but the resistance also increases in proportion to the TOLED panel 20. Degrades performance.
- the light transmitting layer 140 when the thickness of the light transmitting layer 140 becomes larger than 100 nm, the resistance decreases and performance deterioration does not occur. However, as the thickness of the light transmitting layer 140 increases, the transmittance decreases.
- the light transmitting layer 140 according to the embodiment of the present invention is preferably formed by thermal evaporation.
- FIG. 12 is a graph of transmittance according to the presence or absence of a light transmitting layer 140 formed on the TOLED panel 20 of the present invention.
- 'a' in FIG. 12 is a diagram of the TOLED panel 20 according to the present invention in which the light transmitting layer 140 is formed
- 'b' is a TOLED panel 20 without the light transmitting layer 140 unlike the present invention. Is leading.
- the TOLED panel 20 according to the present invention may exhibit a transmittance of 70 to 99% depending on the wavelength (nm). For example, as shown in FIG. 12, looking at the transmittance according to the wavelength (nm), at 550 nm, the transmittance of the TOLED panel 20 according to the present invention is about 80%, and the TOLED without the transmissive layer 140 is present. Panel 20 represents about 47%. For this result, it can be seen that the transmittance of the TOLED panel 20 with the light transmitting layer 140 is 1.7 times higher than that of the TOLED panel 20 without the light transmitting layer 140.
- FIG. 13 is a luminance graph of the TOLED panel 20 depending on the presence of the light-transmitting layer 140.
- 'C' shown in FIG. 13 is a diagram of the TOLED panel 20 according to the present invention, and 'd' is a diagram of the TOLED panel 20 without the light transmitting layer 140.
- the TOLED panel 20 with the light-transmitting layer 140 is about 25000
- the TOLED panel 20 without the light-transmitting layer 140 is about 20000. It can be seen that the luminance remains 1.25 times different depending on the presence or absence of the light transmitting layer 140.
- the 'e' diagram of FIG. 14 shows oxides such as MoO 3, ITO, IZO, IO, ZnO, TO, TiO 2 , SiO 2 , WO 3 , Al 2 O 3 , Cr 2 O 3 , TeO 2 , and SrO 2 .
- the transmittance of the light-transmitting layer 140 formed as a series, and the 'f' plot is the transmittance of the light-transmitting layer 140 formed of salts such as Cs 2 CO 3 , LiCO 3 , KCO 3 , NaCO 3 , LiF, CsF, ZnSe to be.
- the oxide-based light transmissive layer 140 has a transmittance of about 80%, and when the light transmissive layer 140 is formed with salt, there is a difference of about 75%. Since the light transmission layer 140 including the oxide series has a transmittance of about 5% higher than that of the light transmission layer 140 including the salts, it is only a difference. It may be desirable to use it selectively.
- a first electrode 110 that is an anode (+) is formed on the substrate 100 (S301).
- the organic material layer 130 is formed on the first electrode (110) (S302).
- the organic layer 130 formed on the first electrode 110 may include a hole injection layer 131, a hole transport layer 133, a light emitting layer 135, an electron transport layer 137, and an electron injection layer 139. To form.
- the first light transmission layer 141 is formed on the organic material layer 130 (S303).
- the first light-transmitting layer 141 is an oxide-based MoO 3, ITO, IZO, IO, ZnO, TO, TiO 2 , SiO 2 , WO 3 , Al 2 O 3 , Cr 2 O 3 , TeO 2 , SrO 2 , and the like.
- the first light transmitting layer 141 is formed to have a thickness of 0.1 nm or more and less than 100 nm in consideration of resistance and transmittance.
- the second electrode 120 is formed on the first light transmitting layer 141.
- the second electrode 120 uses a metal thin film as the cathode ( ⁇ ).
- the metal thin film used as the second electrode 120 uses any one of silver (Ag), aluminum (Al), and magnesium-silver (Mg: Ag) alloy.
- the second light transmitting layer 142 is again formed on the second electrode 120 (S305).
- the second light transmission layer 142 may include an oxide series as in step S303.
- the second light-transmitting layer 142 formed on the second electrode 120 is a nitride-based, such as SiN, AIN, Cs 2 CO 3 , LiCO 3 , KCO 3 , NaCO 3 , LiF, CsF, ZnSe, etc. Salt salts, and combinations thereof.
- the light-transmitting layer 140 may be formed with the second electrode 120 interposed therebetween to implement double-sided light emission and to improve transmittance.
- the thickness of the second electrode 120 may be adjusted by forming the light transmitting layer 140, thereby improving transmittance and electrical performance.
- the present invention can be widely used in a mobile device, such as a mobile phone, the keypad structure that can slim and compact the structure of the product by applying TOLED (transparent OLED).
- a mobile device such as a mobile phone
- the keypad structure that can slim and compact the structure of the product by applying TOLED (transparent OLED).
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Electroluminescent Light Sources (AREA)
- Position Input By Displaying (AREA)
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Abstract
Description
Claims (17)
- 터치 패널;상기 터치 패널의 하부에 위치하는 TOLED 패널;상기 터치 패널 및 상기 TOLED 패널에 전기적으로 연결되고, 상기 터치 패널의 터치 포인트에 대한 전기신호를 감지하여 상기 터치 포인트에 대응하는 상기 TOLED 패널의 해당 픽셀을 발광시키는 제어부; 및상기 TOLED 패널의 하부에 위치하고, 키패드 정보가 패터닝되며, 상기 TOLED 패널의 발광된 픽셀에 대응하는 상기 키패드 정보를 반사시켜 표시하는 반사 시트를 포함하는 키패드 장치.
- 제 1 항에 있어서, 상기 TOLED 패널은,기판;상기 기판 상에 형성되는 제 1 전극;상기 제 1 전극 상에 형성되는 유기물층;상기 유기물층 상에 형성되는 제 2 전극; 및상기 유기물층과 상기 제 2 전극 사이 및 상기 제 2 전극의 상부 중 적어도 어느 하나에 형성되며, 산화물 계열, 질화물 계열, 염류 및 이들의 복합물 중 어느 하나를 포함하는 투광층을 포함하는 키패드 장치.
- 제 2 항에 있어서, 상기 산화물 계열은 MoO3, ITO, IZO, IO, ZnO, TO, TiO2, SiO2, WO3, Al2O3, Cr2O3, TeO2, SrO2 중 어느 하나를 포함하는 키패드 장치.
- 제 2 항에 있어서, 상기 질화물 계열은 SiN, AIN 중 어느 하나를 포함하는 키패드 장치.
- 제 2 항에 있어서, 상기 염류는 Cs2CO3, LiCO3, KCO3, NaCO3, LiF, CsF, ZnSe 중 어느 하나를 포함하는 키패드 장치.
- 제 2 항에 있어서, 상기 투광층의 두께는 0.1nm 이상 100nm 미만으로 형성되는 것을 특징으로 하는 키패드 장치.
- 제 2 항에 있어서, 상기 유기물층은 상기 제 2 전극으로부터의 전자 주입을 원활하게 하기 위해 일함수가 낮은 금속류 및 이들의 복합물 중 어느 하나를 도핑하여 형성한 전자 전달층을 포함하는 것을 특징으로 하는 키패드 장치.
- 제 7 항에 있어서, 상기 일함수가 낮은 금속류는 Cs, Li, Na, K, Ca 중 어느 하나를 포함하는 키패드 장치.
- 제 7 항에 있어서, 상기 이들의 복합물은 Li-Al, LiF, CsF, Cs2CO3 중 어느 하나를 포함하는 키패드 장치.
- 제 2 항에 있어서, 상기 TOLED 패널은 파장(nm)에 따라 70~99%의 투과율을 나타내는 것을 특징으로 하는 키패드 장치.
- 터치 패널;상기 터치 패널의 하부에 위치하고, 키패드 정보가 패터닝되며, 발광된 픽셀에 대응하는 상기 키패드 정보를 표시하는 OLED 패널; 및상기 터치 패널 및 상기 OLED 패널에 전기적으로 연결되고, 상기 터치 패널의 터치 포인트에 대한 전기신호를 감지하여 상기 터치 포인트에 대응하는 상기 OLED 패널의 해당 픽셀을 발광시키는 제어부를 포함하는 키패드 장치.
- 제 11 항에 있어서, 상기 OLED 패널은 TOLED 패널을 포함하는 것을 특징으로 하는 키패드 장치.
- 제 12 항에 있어서, 상기 TOLED 패널은,기판;상기 기판 상에 형성되는 제 1 전극;상기 제 1 전극 상에 형성되는 유기물층;상기 유기물층 상에 형성되는 제 2 전극; 및상기 유기물층과 상기 제 2 전극 사이 및 상기 제 2 전극의 상부 중 적어도 어느 하나에 형성되며, 산화물 계열, 질화물 계열, 염류 및 이들의 복합물 중 어느 하나를 포함하는 투광층을 포함하는 키패드 장치.
- 제 1 항 내지 제 13 항 중 어느 하나의 키패드 장치를 구비하는 모바일 기기.
- 제어부가 터치 패널의 터치 포인트에 대한 전기신호를 감지하는 단계;상기 터치 패널의 전기신호가 감지되면 상기 터치 포인트에 대응하는 TOLED 패널의 해당 픽셀에 구동 전압을 인가하여 해당 픽셀을 발광시키는 단계; 및키패드 정보가 패터닝된 반사 시트가 상기 TOLED 패널의 발광된 픽셀에 대응하는 키패드 정보를 반사시켜 표시하는 단계를 포함하는 키패드 제어 방법.
- 제어부가 터치 패널의 터치 포인트에 대한 전기신호를 감지하는 단계;상기 터치 패널의 전기신호가 감지되면 상기 터치 포인트에 대응하는 OLED 패널의 해당 픽셀에 구동 전압을 인가하여 해당 픽셀을 발광시키는 단계; 및키패드 정보가 패터닝된 상기 OLED 패널이 발광된 픽셀에 대응하는 상기 키패드 정보를 표시하는 단계를 포함하는 키패드 제어 방법.
- 제 16 항에 있어서, 상기 OLED 패널은 TOLED 패널을 포함하는 것을 특징으로 하는 키패드 제어 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09813196.4A EP2348389B1 (en) | 2008-09-09 | 2009-07-13 | Keypad apparatus, mobile device comprising same, and keypad control method |
JP2011526799A JP2012502387A (ja) | 2008-09-09 | 2009-07-13 | キーパッド装置、これを備えるモバイル機器およびキーパッド制御方法 |
CN200980135390.0A CN102177488B (zh) | 2008-09-09 | 2009-07-13 | 键盘装置、包括该键盘装置的移动设备以及键盘控制方法 |
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KR10-2008-0088725 | 2008-09-09 | ||
KR20080088725 | 2008-09-09 | ||
KR1020090047774A KR101097453B1 (ko) | 2008-09-09 | 2009-05-29 | 키패드 장치, 이를 구비하는 모바일 기기 및 키패드 제어 방법 |
KR10-2009-0047774 | 2009-05-29 |
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WO2010030074A2 WO2010030074A2 (ko) | 2010-03-18 |
WO2010030074A3 WO2010030074A3 (ko) | 2010-05-06 |
WO2010030074A9 true WO2010030074A9 (ko) | 2011-06-09 |
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US (1) | US20100302192A1 (ko) |
EP (1) | EP2348389B1 (ko) |
JP (1) | JP2012502387A (ko) |
KR (1) | KR101097453B1 (ko) |
CN (1) | CN102177488B (ko) |
WO (1) | WO2010030074A2 (ko) |
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-
2009
- 2009-05-29 KR KR1020090047774A patent/KR101097453B1/ko not_active IP Right Cessation
- 2009-07-13 JP JP2011526799A patent/JP2012502387A/ja active Pending
- 2009-07-13 EP EP09813196.4A patent/EP2348389B1/en not_active Not-in-force
- 2009-07-13 CN CN200980135390.0A patent/CN102177488B/zh not_active Expired - Fee Related
- 2009-07-13 WO PCT/KR2009/003821 patent/WO2010030074A2/ko active Application Filing
-
2010
- 2010-05-28 US US12/790,687 patent/US20100302192A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP2348389B1 (en) | 2014-04-16 |
CN102177488B (zh) | 2014-04-23 |
EP2348389A4 (en) | 2013-03-27 |
WO2010030074A2 (ko) | 2010-03-18 |
CN102177488A (zh) | 2011-09-07 |
KR20100030561A (ko) | 2010-03-18 |
EP2348389A2 (en) | 2011-07-27 |
KR101097453B1 (ko) | 2011-12-23 |
JP2012502387A (ja) | 2012-01-26 |
US20100302192A1 (en) | 2010-12-02 |
WO2010030074A3 (ko) | 2010-05-06 |
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