WO2005064931A1 - Television receiver and multimedia appliance using an organic electroluminescent display - Google Patents
Television receiver and multimedia appliance using an organic electroluminescent display Download PDFInfo
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- WO2005064931A1 WO2005064931A1 PCT/KR2004/000269 KR2004000269W WO2005064931A1 WO 2005064931 A1 WO2005064931 A1 WO 2005064931A1 KR 2004000269 W KR2004000269 W KR 2004000269W WO 2005064931 A1 WO2005064931 A1 WO 2005064931A1
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- oled panel
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
- H04N5/602—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/66—Transforming electric information into light information
- H04N5/70—Circuit details for electroluminescent devices
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- 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]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
Abstract
A television receiver (TV) and a multimedia appliance using an organic electroluminescent display (OLED) are disclosed. The multimedia appliance includes a microprocessor, a tuner for selecting a TV broadcasting signal and outputting a video signal and an audio signal of the selected TV broadcasting signal, a video decoder for reformatting the video signal outputted from the tuner to match an input format of the OLED under the control of the microprocessor, an audio processor for processing the audio signal outputted from the tuner to match a selected video source and outputting the processed audio signal, a CCD module for generating an imageA television receiver (TV) and a multimedia appliance using an organic electroluminescent display (OLED) are disclosed. The multimedia appliance includes a microprocessor, a tuner for selecting a TV broadcasting signal and outputting a video signal and an audio signal of the selected TV broadcasting signal, a video decoder for reformatting the video signal outputted from the tuner to match an input format of the OLED under the control of the microprocessor, an audio processor for processing the audio signal outputted from the tuner to match a selected video source and outputting the processed audio signal, a CCD module for generating an image signal from an optical image of an object using a charge-coupled device (CCD), a memory for receiving and storing digital moving image files (MPEG4) and digital audio files (MP3), a digital signal controller for controlling and selecting a desired output signal among the video signal reformatted by the video decoder, the image signal outputted from the CCD module, the digital moving image file (MPEG4) and the digital audio file (MP3) outputted from the memory, and an OLED panel driver for processing the video signal outputted from the video decoder to match an output format of an OLED panel and outputting the processed video signal to the OLED panel to display the video signal.
Description
TELEVISION RECEIVER AND MULTIMEDIA APPLIANCE USING AN ORGANIC ELECTROLUMINESCENT DISPLAY
Technical Field The present invention relates generally to a multimedia organic electroluminescent display television receiver, and more particularly to a television receiver (TV) and a multimedia appliance using an organic electroluminescent display (OLED) that can display a full-color picture using an OLED as a video signal output means.
Background Art Generally, as shown in FIG. 1 , a conventional TV uses a TFT-LCD (Thin Film Transistor - Liquid Crystal Display) 410, a PDP (Plasma Display Panel) 420, or a CRT 430 as a display device. If TV broadcasting program signals (composed of video signals and audio signals) transmitted from respective TV broadcasting stations are received through an antenna ANT, and a channel desired by a user is selected through a key input unit (not illustrated), an MCU that is a system control unit controls a tuner 310 to send the corresponding video signal to a video decoder 330. The video decoder 330 processes the video signal to match a respective display device, and sends the processed video signal to a deflection IC and sealer IC 350, so that the processed video signal is outputted to and displayed on the display device of an output control unit 400. Here, an audio signal received through the channel tuned by the tuner 310 is inputted to and processed by an audio processor 320, and the processed audio signal is outputted to a speaker. As needed, input message data is OSD-processed by an OSD (On-Screen Display) processing unit 340, and then outputted to the output control unit 400 via the deflection IC and sealer IC 350 to be displayed on the display device along with the broadcasting video signal. In the conventional TV as described above, an LCD or a PDP has been replacing the CRT. However, it is difficult to reduce the size and the power consumption of the PDP, and the LCD has problems in luminance, contrast and viewing angle since it is not a self-light-emitting element, but a passive element. Consequently, it is difficult to adopt the LCD or the PDP especially in a portable, small-sized and low-power-consuming TV.
Disclosure of the Invention Therefore, an object of the present invention is to solve the problems involved in the prior art and to provide a television receiver (TV) and a multimedia appliance using an organic electroluminescent display (OLED) that can solve the problems of an LCD TV and a PDP TV in size and power consumption, and embody a new video appliance which is light and small-sized and has a low power consumption and a multimedia function by using a full-color OLED having the advantages of low-voltage driving, self-light-emission, light weight and small size, wide viewing angle, short response time, and so on. In order to achieve the above object, there is provided a television receiver (TV) using an organic electroluminescent display (OLED) comprising a microprocessor, a tuner for selecting a TV broadcasting signal and outputting a video signal and an audio signal of the selected TV broadcasting signal, a video decoder for reformatting the video signal outputted from the tuner to match an input format of the OLED under the control of the microprocessor, an audio processor for processing the audio signal outputted from the tuner to match a selected video source and outputting the processed audio signal, and an OLED panel driver for processing the video signal outputted from the video decoder to match an output format of an OLED panel and outputting the processed video signal to the OLED panel to display the video signal. In another aspect of the present invention, there is provided a multimedia appliance using an organic electroluminescent display (OLED) comprising a microprocessor, a tuner for selecting a TV broadcasting signal and outputting a video signal and an audio signal of the selected TV broadcasting signal, a video decoder for reformatting the video signal outputted from the tuner to match an input format of the OLED under the control of the microprocessor, an audio processor for processing the audio signal outputted from the tuner to match a selected video source and outputting the processed audio signal, a CCD module for generating an image signal from an optical image of an object using a charge-coupled device
(CCD), a memory for receiving and storing digital moving image files (MPEG4) and digital audio files (MP3), a digital signal controller for controlling and selecting a desired output signal among the video signal reformatted by the video decoder, the image signal outputted from the CCD module, the digital moving image file (MPEG4) and the digital audio file (MP3) outputted from the memory, and an
OLED panel driver for processing the video signal outputted from the video decoder to match an output format of an OLED panel and outputting the processed video signal to the OLED panel to display the video signal. It is preferable that the TV or the multimedia appliance according to the present invention further includes an RGB amplifier for comparison-amplifying
RGB signals outputted from the OLED panel driver, and the OLED panel outputs video data inputted from the RGB amplifier according to a control signal outputted from the OLED panel driver. It is preferable that the TV or the multimedia appliance according to the present invention further includes an OLED power supply IC for providing a driving power supply to the OLED panel driver and the OLED panel, and the microprocessor controls the OLED power supply IC, outputs the video signal to match the video format of the OLED, and controls a menu selection to reproduce the digital image or to view an image from the CCD module.
Brief Description of the Drawings The above objects, other features and advantages of the present invention will become more apparent by describing the preferred embodiments thereof with reference to the accompanying drawings, in which: FIG. 1 is a block diagram illustrating the construction of a conventional
TV. FIG. 2 is a block diagram illustrating the construction of a multimedia appliance using an OLED according to an embodiment of the present invention. FIG. 3 is a view illustrating the signal process of an OLED panel driver according to the present invention. FIG. 4 is a flowchart illustrating the signal process of a multimedia appliance using an OLED according to the present invention.
Best Mode for Carrying Out the Invention Now, the TV and the multimedia appliance using an OLED according to preferred embodiments of the present invention will be described in detail with reference to the annexed drawings. Generally, an OLED (Organic Electroluminescent display) has recently been used in a flat panel display since Pope, Kallmann and Magnate discovered electroluminescence from an anthracene single crystal in 1963. The OLED using an
organic EL has rapidly been developed to improve the performance of a display and to lead the development of application products. In performance, according to the IEEE Spectrum 35(4), 1998, the OLED has the following advantages in comparison to an LCD or PDP that is the existing flat panel display device: In comparison to the LCD having a narrow viewing angle of 40° and a long response time of 30~60ms, the OLED has a viewing angle of 80° or more and a response speed of 0.01ms or less. Also, in comparison to the PDP, which has a low luminous efficiency of 1.0 lm/W and a large driving voltage of 200V and requires a large power consumption of 200W (for a size of 106.7cm), the OLED has a luminous efficiency of 2—16 lm/W, a driving voltage of 2~5V, and a power consumption of 1 W (for a size of 26.4cm). Here, the OLED has the characteristics of light emission, high luminance, high efficiency, low driving voltage (DC drive, and battery usable), easy color change (polychrome), large viewing area, flexibility, low price, and high-speed response (Refer to Display, pp305-342 1999, EMDEC). Generally, if a cathode and an anode are formed on both ends of a thin-film type material, and then an electric field is applied thereto, electrons and holes are injected into and transported in the film type material, and then finally bonded together to cause light emission by the bond energy, and this is called electroluminescence (EL). Both an inorganic compound and an organic compound can have the electroluminescent characteristic, and EL devices using an inorganic substance have already been commercialized. However, the inorganic EL device has a large power consumption, and it is difficult to obtain light of a high luminance or diverse illumination colors of light. However, the organic EL using an organic compound has the advantages in that it is driven by a DC voltage in the range of several to several tens of volts, has a high luminance in the range of several hundreds to several thousands cd/m2, and has diverse illumination colors of light according to the change of its molecular structure, and thus it becomes the center of interest in the field of display. In the structure of the organic EL, an organic EL material exists between the anode and the cathode in the form of a thin film. If a DC electric field is applied between the anode and the cathode, electrons are injected from the cathode into the organic EL material and holes are injected from the anode into the organic EL material. The electrons and the holes injected into the organic EL material are transported in the organic EL material under the electric field, and then bonded together to form excitons, and this
causes light in the range of visible spectrum to emit. Thus, the organic EL can be used as a display device. Recently, as the display becomes large-sized, the demand for a display device having a small space of occupation is increasing. In a personal information terminal such as a PCS (Personal Communication Service) and so on, an LCD has widely been used. However, since the LCD has a narrow viewing angle and a long response time, the organic EL becomes the center of attention. The organic EL can suit the moderns' taste because it has the advantages of a short response time, an excellent luminance, low-voltage driving, full-color display, and so on. Also, the organic EL can be formed even on a flexible transparent substrate, and has excellent characteristics of wide viewing angle, high-speed response, high contrast, and so on. The organic ELD (OLED) can be used as pixels of a graphic display or a surface light source, and is suitable to the next-generation flat panel display since it can be driven with a low voltage in comparison to the PDP or inorganic ELD. The OLED can be applied to a car navigator, personal portable video player, roll type TV, camcorder, digital camera, portable game machine, outdoor electric sign, papering type lightening, notebook computer, dashboard, road sign, clock board, laser diode, hang-on-the-wall type TV, and so on. FIG. 2 is a block diagram illustrating the construction of a multimedia appliance using an OLED according to an embodiment of the present invention, and FIG. 3 is a view illustrating the signal process of an OLED panel driver according to the present invention. Referring to FIGs. 2 and 3, the multimedia appliance according to the present invention includes a power supply unit 10, a tuner 20, a video decoder 30, a
CCD module 40, a digital signal input unit 50, an audio processor 60, a digital signal controller 70, a memory 80, a menu selection unit 90, a microprocessor 100, an OLED panel driver 110, an RGB amplifier 120, an OLED panel 130, and an OLED power supply IC 140. The power supply unit 10 provides a power supply voltage to the system according to the present invention, and also provides a power supply to cope with three primary colors of red (R), green (G) and blue (B). In the case of a home appliance, the power supply unit 10 may be an adaptor for converting an AC power supply into a DC power supply, and in the case of a portable appliance, it may be a battery.
The tuner 20 receives and selects a TV broadcasting signal transmitted from a respective TV broadcasting station, and outputs video and audio signals of the selected broadcasting signal. For example, if TV broadcasting program signals (composed of video signals and audio signals) transmitted from respective TV broadcasting stations are received through an antenna ANT and a channel desired by a user is selected through the menu selection unit 90, the microprocessor 100 that is the system control unit controls the tuner 20 to tune the desired channel and demodulates the video and audio signals of the selected channel to output the demodulated video and audio signals to the video decoder 30 and the audio processor 60, respectively. At this time, in the case of a portable TV, it is preferable to design the tuner using a chip tuner having a low power consumption. The video decoder (i.e., video processor) 30 detects the video signal from the video and audio signals outputted through the tuner 20, and reformats the detected video signal to match a YUV4:2:2 format that is an input video format of the OLED under the control of the microprocessor 100 to output the reformatted video signal to the digital signal controller 70. The CCD module 40 generates an image signal from an optical image of an object using a CCD that is a photoelectric transducer, and the image signal from the CCD is displayed through the OLED. Accordingly, the display panel (i.e., OLED panel) 130 is composed of a camera that serves as a view finder, a digital still camera, or a camcorder. The digital signal input unit 50 serves to input compressed digital moving image files (MPEG4) and digital audio files (MP3) to the digital signal controller 70. MPEG4 denotes an MPEG (Moving Picture Experts Group) 2 TP (Transport
Stream) determined as the International Standard of the basic digital broadcasting transmission format (Refer to the ISO/IEC 13818-1 Standard). The MP3 means an MPEG layer 3, which is one of audio parts of the MPEG technology. The audio processor 60 detects the audio signal from the video and audio signal outputted through the tuner 20, and processes the detected audio signal to match the selected video source to output the processed audio signal to a speaker or a headphone (or earphone). The digital signal controller (i.e., multimedia processor) 70 controls and selects a desired output signal among the TV video signal reformatted by the video
decoder 30, the image signal outputted from the CCD module 40, the digital image signal (MPEG) and the digital audio signal (MP3) outputted from the memory 80. The memory 80 is implemented using a synchronous DRAM (SDRAM) that is a buffer memory required to receive an MPEG-compressed video signal sequence and an audio signal sequence from an internal demultiplexer located inside the microprocessor 100 or a separate demultiplexer, and to restore them to the original signal (i.e., digital data) by decoding them. The menu selection unit 90 is provided with keys for selecting one of the TV video signal, the moving image signal picked up by the CCD module 40, and the MPEG4 image signal, to be outputted through the OLED panel 130. The microprocessor 100 is a kind of microcomputer that controls the whole operation of the system in accordance with the key signal selected through the menu selection unit 90, and controls the tuner 20, the digital signal controller 70, the OLED panel driver 110, and so on. The OLED panel driver 110 processes the video signal outputted from the digital signal controller 70 to match a CCIR6565 format, i.e., a YUV4:2:2 format that is an output video format of the OLED panel 130 under the control of the microprocessor 100, and outputs the processed video signal to the OLED panel 130 through the output RGB amplifier 120 or an analog-to-digital converter (not illustrated) to display the video signal on the OLED panel 130. The RGB amplifier 120 is composed of a plurality of OP amplifiers that compare the R, G and B signals outputted from the OLED panel driver 110 with one another, calculate respective voltage differences among the R, G and B signals according to the results of comparison, and amplify the R, G and B signals. The OLED panel 130 outputs video data from the RGB amplifier 120 according to a control signal outputted from the OLED panel driver 1 10. The OLED power supply IC 140 receives the power supply from the power supply unit 10, and provides a driving power supply to the OLED panel driver 110 and the OLED panel 130. FIG. 4 is a flowchart illustrating the signal process of a multimedia appliance using an OLED according to the present invention. In FIG. 4, the character 'S' denotes a step. First, if a power supply is applied to the system according to the present invention, the power supply unit 10 provides a power supply voltage required to drive the system (S 10).
In the case of a home multimedia appliance, the power supply unit 10 may be an adaptor for converting an AC power supply into a DC power supply, and in the case of a portable multimedia appliance, it may be a battery. In the multimedia appliance according to the present invention, if TV broadcasting program signals (composed of video signals and audio signals) transmitted from respective TV broadcasting stations are received through an antenna ANT and a channel desired by a user is selected through the menu selection unit 90, the microprocessor 100 that is the system control unit controls the tuner 20 to tune the desired channel using an I2C bus, and demodulates the video and audio signals of the selected broadcasting channel received through the tuner to output the demodulated video and audio signals to the video decoder 30 and the audio processor 60, respectively (S20 and S120). Accordingly, the video decoder 30 detects the video signal from the video and audio signals outputted through the tuner 20, and reformats the detected video signal to match the input video format of the OLED such as the YUV4:2:2 format and so on under the control of the microprocessor 100 to output the reformatted video signal to the digital signal controller 70 (S30). The audio processor 60 detects the audio signal from the video and audio signal outputted tlirough the tuner 20, and processes the detected audio signal to match the selected video source to output the processed audio signal to the digital signal controller 70 (SI 30). Meanwhile, in the multimedia appliance according to the present invention, the menu selection unit 90 is provided with keys for the user to select one of the TV video signal, the moving image signal picked up by the CCD module 40, the digital moving image file (MPEG4), and the digital audio file (MP3), to be outputted through the OLED panel 130. Accordingly, if the user selects the image output of the CCD module 40 by manipulating the menu selection unit 90, the CCD module 40, which is composed of a camera, a digital still camera, or a camcorder, generates an image signal from an optical image of an object using the CCD that is a photoelectric transducer, and outputs the image signal to the digital signal controller 70. This image signal from the digital signal controller 70 is stored in the memory 80 located inside the signal control unit (S25). Meanwhile, if the user selects the digital moving image file (MPEG4) or the digital audio file (MP3) by manipulating the menu selection unit 90, the digital
signal input unit 50 inputs the compressed digital moving image file (MPEG4) or the digital audio file (MP3) to the digital signal controller 70. The video signal sequence of the digital moving image file (MPEG4) or the audio signal sequence of the digital audio file (MP3) inputted to the digital signal controller 70 is stored in the memory 80, and then is decoded to be restored to the original signal (i.e., digital data). The digital moving image file (MPEG4) is the MPEG (Moving Picture Experts Group) 2 TP (Transport Stream) determined as the International Standard of the basic digital broadcasting transmission format (Refer to the ISO/IEC 13818-1 Standard). Starting from the publication of MPEG 1, MPEG2 was published due to the increasing necessity for the multimedia data compression standard, and MPEG 4 for the object-oriented multimedia communications has recently been published. The first standardized MPEG1 is the coding technique for compressing a moving image and an audio by 1.5Mbps at maximum and storing the compressed moving image and audio in a digital storage device, and is composed of 5 parts in all. One of the 5 parts is the audio part in which three kinds of audio coding techniques, so called layer 1, layer 2 and layer 3, are defined. MP3 means an MPEG layer 3, which is one of the audio parts of the MPEG technology. In 1995, the audio part was separated from the MPEG technology that is the new computer image compression standard. Since MP3 is an audio file format made using the audio data coding technique and has the characteristics in that it can compress the existing data by about 1/12 without any deterioration of the sound quality, it is effective in sending/receiving audio files using limited transmission lines. As described above, if the user selects a desired video output or audio output by manipulating the menu selection unit 90 (S40 and SI 40), the digital signal controller 70 controls and selects a desired output signal among the TV video signal reformatted by the video decoder 30, the image signal outputted from the CCD module 40, the digital image signal (MPEG) and the digital audio signal (MP3) outputted from the memory 80 (S50 to S70). The microprocessor 100 can select the source in order to reproduce the digital image or to view the image from the camera. The digital signal controller 70 can control the MP3 audio output and so on, and this can supplement the function of the multimedia OLED.
The microprocessor 100 controls the tuner 20, the digital signal controller 70, the OLED panel driver 110, and so on in accordance with the key signal selected through the menu selection unit 90. The OLED panel driver 110 processes the video signal outputted from the digital signal controller 70 to match a CCIR6565 format, i.e., a YUV4:2:2 format, that is an output video format of the OLED panel 130 under the control of the microprocessor 100, and outputs the processed video signal (i.e., RGB signals) to the OLED panel 130 (S80). At this time, the OLED power supply IC 140 controls the power supply to the OLED panel driver 110 and the OLED panel 130, so that the OLED panel driver
110 outputs the video signal to match the video format of the OLED panel 130.
Here, by outputting the video signal after the control of the OLED power supply, the malfunction of the OLED panel 130 can be prevented (S90). Thereafter, the OLED panel driver 110 outputs the image control signal for driving the OLED panel 130 and the video data (S100). Accordingly, the RGB amplifier 120, which received the video data outputted from the OLED panel driver 110, compares the R, G and B signals outputted from the OLED panel driver 110 with one another, calculates respective voltage differences among the R, G and B signals according to the results of comparison, and amplifies the RGB signals. The OLED panel 130 outputs the video data from the RGB amplifier 120 according to the control signal outputted from the OLED panel driver 110 (SI 10). Meanwhile, the audio processor 60 controls the audio signal to match the selected video source, amplifies the audio signal with a predetermined level, and outputs the amplified audio signal to the speaker and the headphone (or earphone)
(S150 and S160). Conventionally, although the video technology has daily been developed with the development of a large-sized digital TV, a flat panel TV still uses an LCD and a PDP, and a personal video appliance still uses an LCD. This is caused by the spread, screen size, and design of the OLED. The TV and the multimedia appliance using an OLED according to the present invention, which will be the center of the next-generation multimedia, can solve the problems of the LCD TV and the PDP TV, and have the advantages of low-voltage driving, self-light-emission, light weight and small size; wide viewing angle, short response time, and so on.
Industrial Applicability As apparent from the above description, a TV and a multimedia appliance using an OLED according to the present invention can solve the problems of an LCD TV and a PDP TV in size and power consumption, and embody a new video appliance which is light and small-sized and has a low power consumption and a multimedia function by using a full-color OLED having the advantages of low- voltage driving, self-light-emission, light weight and small size, wide viewing angle, short response time, and so on. The forgoing embodiments are merely exemplary and are not to be construed as limiting the present invention. The present teachings can be readily applied to other types of apparatuses. The description of the present invention is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.
Claims
Claims 1. A television receiver (TV) using an organic electroluminescent display (OLED) comprising: a microprocessor; a tuner for selecting a TV broadcasting signal and outputting a video signal and an audio signal of the selected TV broadcasting signal; a video decoder for reformatting the video signal outputted from the tuner to match an input format of the OLED under the control of the microprocessor; an audio processor for processing the audio signal outputted from the tuner to match a selected video source and outputting the processed audio signal; and an OLED panel driver for processing the video signal outputted from the video decoder to match an output format of an OLED panel and outputting the processed video signal to the OLED panel to display the video signal.
2. The TV as claimed in claim 1, further comprising an RGB amplifier for comparison-amplifying RGB signals outputted from the OLED panel driver; wherein the OLED panel outputs video data inputted from the RGB amplifier according to a control signal outputted from the OLED panel driver.
3. The TV as claimed in claim 1, wherein the microprocessor controls a menu selection to reproduce the digital image or to view an image from the CCD module.
4. The TV as claimed in claim 1, further comprising an OLED power supply IC for providing a driving power supply to the OLED panel driver and the
OLED panel; wherein the microprocessor controls the OLED power supply IC, outputs the video signal to match the video format of the OLED.
5. A multimedia appliance using an organic electroluminescent display
(OLED) comprising: a microprocessor; a tuner for selecting a television broadcasting signal and outputting a video signal and an audio signal of the selected television broadcasting signal; a video decoder for reformatting the video signal outputted from the tuner to match an input format of the OLED under the control of the microprocessor; an audio processor for processing the audio signal outputted from the tuner to match a selected video source and outputting the processed audio signal; a CCD module for generating an image signal from an optical image of an object using a charge-coupled device (CCD); a memory for receiving and storing digital moving image files (MPEG4) and digital audio files (MP3); a digital signal controller for controlling and selecting a desired output signal among the video signal reformatted by the video decoder, the image signal outputted from the CCD module, the digital moving image file (MPEG4) and the digital audio file (MP3) outputted from the memory; and an OLED panel driver for processing the video signal outputted from the video decoder to match an output format of an OLED panel and outputting the processed video signal to the OLED panel to display the video signal.
6. The multimedia appliance as claimed in claim 5, further comprising an RGB amplifier for comparison-amplifying RGB signals outputted from the OLED panel driver; wherein the OLED panel outputs video data inputted from the RGB amplifier according to a control signal outputted from the OLED panel driver.
7. The multimedia appliance as claimed in claim 5, wherein the microprocessor controls a menu selection to reproduce the digital image or to view an image from the CCD module.
8. The multimedia appliance as claimed in claim 5, further comprising an OLED power supply IC for providing a driving power supply to the OLED panel driver and the OLED panel; wherein the microprocessor controls the OLED power supply IC, outputs the video signal to match the video format of the OLED.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0098028 | 2003-12-27 | ||
| KR1020030098028 | 2003-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005064931A1 true WO2005064931A1 (en) | 2005-07-14 |
Family
ID=34737905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2004/000269 WO2005064931A1 (en) | 2003-12-27 | 2004-02-11 | Television receiver and multimedia appliance using an organic electroluminescent display |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2005064931A1 (en) |
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|---|---|---|---|---|
| JPS58209278A (en) * | 1982-05-31 | 1983-12-06 | Sharp Corp | Character broadcasting receiver |
| JP2001016601A (en) * | 1999-06-29 | 2001-01-19 | Sanyo Electric Co Ltd | Liquid crystal television |
| JP2002304136A (en) * | 2001-01-17 | 2002-10-18 | Seiko Epson Corp | Electronic equipment provided with organic electroluminescence display |
| KR20030010233A (en) * | 2001-07-26 | 2003-02-05 | 주식회사 글로네트 | A television have multiple function |
| JP2003158727A (en) * | 2001-09-07 | 2003-05-30 | Canon Inc | Electronic apparatus, imaging apparatus, portable communications apparatus, method and program for controlling display of video |
| US20030137609A1 (en) * | 2001-12-31 | 2003-07-24 | Toshio Hayakawa | Multimedia system using plasma or liquid crystal display, display system of portable computer, and signal receiver for television, radio, and cellular telephone |
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2004
- 2004-02-11 WO PCT/KR2004/000269 patent/WO2005064931A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58209278A (en) * | 1982-05-31 | 1983-12-06 | Sharp Corp | Character broadcasting receiver |
| JP2001016601A (en) * | 1999-06-29 | 2001-01-19 | Sanyo Electric Co Ltd | Liquid crystal television |
| JP2002304136A (en) * | 2001-01-17 | 2002-10-18 | Seiko Epson Corp | Electronic equipment provided with organic electroluminescence display |
| KR20030010233A (en) * | 2001-07-26 | 2003-02-05 | 주식회사 글로네트 | A television have multiple function |
| JP2003158727A (en) * | 2001-09-07 | 2003-05-30 | Canon Inc | Electronic apparatus, imaging apparatus, portable communications apparatus, method and program for controlling display of video |
| US20030137609A1 (en) * | 2001-12-31 | 2003-07-24 | Toshio Hayakawa | Multimedia system using plasma or liquid crystal display, display system of portable computer, and signal receiver for television, radio, and cellular telephone |
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