KR100777072B1 - Apparatus for driving plasma display panel and method thereof - Google Patents

Apparatus for driving plasma display panel and method thereof Download PDF

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KR100777072B1
KR100777072B1 KR1020060059753A KR20060059753A KR100777072B1 KR 100777072 B1 KR100777072 B1 KR 100777072B1 KR 1020060059753 A KR1020060059753 A KR 1020060059753A KR 20060059753 A KR20060059753 A KR 20060059753A KR 100777072 B1 KR100777072 B1 KR 100777072B1
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pdp
commercial
section
driving
display panel
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KR1020060059753A
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Korean (ko)
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이재욱
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주식회사 대우일렉트로닉스
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/28Control 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 luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/291Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • G09G3/294Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
    • G09G3/2946Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge by introducing variations of the frequency of sustain pulses within a frame or non-proportional variations of the number of sustain pulses in each subfield
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/28Control 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 luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288Control 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 luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/296Driving circuits for producing the waveforms applied to the driving electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation
    • G09G2330/021Power management, e.g. power saving
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20Constructional details
    • H01J2211/66Cooling arrangements

Abstract

An apparatus and a method for driving a plasma display panel are provided to reduce power consumption by adjusting an operation of a cooling fan based on advertisement intervals. An apparatus for driving a plasma display panel includes an image processing unit(20), an advertisement broadcast section extracting unit(10), a memory(40), a controller(30), a PDP(Plasma Display Panel) driver(70), and a cooling fan driver(50). The image processing unit receives digital image data and executes decoding and coloring. The advertisement broadcast section extracting unit receives EPG(Electronic Program Guide) information and extracts an advertisement broadcast section. The memory stores a mapping table having the number of sustain discharges for driving a PDP. The controller controls the PDP using a read out mapping table in the advertisement broadcast section. The PDP driver displays images, which are processed in the image processing unit. The cooling fan driver limits operation of a cooling fan in the advertisement broadcast section under control of the controller.

Description

플라즈마 디스플레이 패널의 구동장치 및 그 방법{APPARATUS FOR DRIVING PLASMA DISPLAY PANEL AND METHOD THEREOF}A driving device of a plasma display panel and a method thereof {APPARATUS FOR DRIVING PLASMA DISPLAY PANEL AND METHOD THEREOF}

도 1은 종래의 교류형 플라즈마 디스플레이 패널의 일반적인 구조를 도시한 사시도. 1 is a perspective view showing a general structure of a conventional AC plasma display panel.

도 2는 종래의 PDP에 대한 구동 방식 중 ADS 구동 방식을 설명하기 위하여 도시한 펄스 파형도. 2 is a pulse waveform diagram illustrating an ADS driving method among driving methods for a conventional PDP.

도 3은 종래의 PDP 구동 방식에 의한 유지방전개수와 소비전력을 나타낸 그래프.3 is a graph showing the sustain discharge count and power consumption by the conventional PDP driving method.

도 4는 본 발명에 의한 플라즈마 디스플레이 패널의 구동장치를 간략하게 나타낸 블록구성도이다. 4 is a block diagram schematically illustrating a driving device of the plasma display panel according to the present invention.

도 5는 본 발명에 의한 플라즈마 디스플레이 패널의 구동방법을 설명하기 위한 흐름도이다. 5 is a flowchart illustrating a method of driving a plasma display panel according to the present invention.

- 도면의 주요부분에 대한 부호의 설명 -   -Explanation of symbols for the main parts of the drawings-

10 : 광고방송 구간추출부 20 : 영상처리부10: commercial section extraction unit 20: image processing unit

30 : 제어부 40 : 메모리30: control unit 40: memory

50 : 냉각팬 구동부 60 : 냉각팬50: cooling fan drive unit 60: cooling fan

70 : PDP 구동부 80 : PDP70: PDP drive unit 80: PDP

본 발명은 플라즈마 디스플레이 패널의 구동장치 및 그 방법에 관한 것으로서, 보다 상세하게는 플라즈마 디스플레이 패널을 통해 디지털 방송을 시청할 때 EPG를 통해 광고방송 구간을 추출하여 광고방송 구간에서는 유지방전 개수를 줄여 어둡게 할 뿐만 아니라 냉각팬의 동작을 조절하여 소비전력을 줄일 수 있도록 한 플라즈마 디스플레이 패널의 구동장치 및 그 방법에 관한 것이다. The present invention relates to a driving device and a method of a plasma display panel, and more particularly, to extract a commercial section through an EPG when watching digital broadcasting through a plasma display panel, thereby reducing the number of maintenance discharges in the commercial section. In addition, the present invention relates to a plasma display panel driving apparatus and a method for reducing power consumption by controlling an operation of a cooling fan.

플라즈마 표시장치(plasma display panel ; PDP)는 기체 방전시에 발생하는 플라즈마로부터 나오는 빛을 이용하여 문자 또는 그래픽을 표시하는 표시장치로써 현재 활발히 연구되고 있는 LCD(liquid crystal display), FED(field emission display), ELD(Electroluminescence display)와 같은 여러 분야의 평판형 디스플레이 중에서도 대형화에 가장 적합한 장점을 가지고 있다. Plasma display panel (PDP) is a display device that displays characters or graphics by using light emitted from plasma generated during gas discharge, and is currently being actively researched (liquid crystal display) and FED (field emission display). ), Among flat panel displays in many fields such as ELD (Electroluminescence display), has the most suitable advantage for large size.

PDP는 40" 이상의 대형화화가 가능하고, 방전에서 형성되는 자외선이 형광막을 자극하여 가시광을 발광시키는 포토루미네슨스(photoluminescence) 메카니즘을 이용하기 때문에 CRT 수준의 칼라화가 가능하며, 자기 발광형 표시소자(self-emissive display)로서 160°이상의 넓은 시야각을 갖는 등 다른 평판 소자에서 찾 아볼 수 없는 고유한 장점을 많이 가지고 있어 차세대 고선명 벽걸이 TV, TV와 PC의 기능이 복합화된 멀티미디어(multimedia)용 대형 표시장치로서 유력시되고 있어 최근 들어 이에 대한 관심이 고조되고 있다.PDP can be enlarged to 40 "or larger, and CRT level colorization is possible because the ultraviolet light generated by the discharge uses a photoluminescence mechanism that stimulates the fluorescent film to emit visible light. As a self-emissive display, it has many unique advantages that cannot be found in other flat panel devices such as a wide viewing angle of more than 160 °. It is a large display device for multimedia that combines the functions of next-generation high-definition wall-mounted TV, TV, and PC. Recently, interest in this has been increasing.

PDP는 두께가 3 ㎜ 정도되는 2장의 유리기판을 사용하여 각각의 기판 위에 적당한 전극과 형광체를 도포하고, 약 0.1 ㎜ 내지 0.2 ㎜의 간격을 유지하면서 그 사이의 공간에 플라즈마를 형성하는 방법을 채택하고 있기 때문에 평판으로서 대형화가 가능하다. 또한, PDP에서 가스 방전은 전극간에 전압이 인가되더라도 방전 개시 전압 이하의 인가전압에 대해서는 방전이 일어나지 않는 강한 비선형성을 갖고, 대형 디스플레이의 구동에 필수적인 기능인 기억기능(memory function)이 있어 초대형의 패널에 대해서도 휘도의 저하없이 고화질의 화상을 표현할 수 있다. PDP adopts a method of applying a suitable electrode and phosphor on each substrate by using two glass substrates having a thickness of about 3 mm, and forming a plasma in the space therebetween while maintaining an interval of about 0.1 mm to 0.2 mm. As a result, it can be enlarged as a flat plate. In addition, in the PDP, the gas discharge has a strong non-linearity in which discharge does not occur even when a voltage is applied between electrodes, and a super large panel having a memory function that is essential for driving a large display. Even in this case, a high quality image can be expressed without deteriorating the luminance.

PDP는 플라즈마를 발생하기 위한 전극이 플라즈마에 직접 노출되어 전도전류(conduction current)가 전극을 통해 직접 흐르는 직류형(DC형)과 전극이 유전체로 덮여 있어 직접 노출되지 않아 변위전류(Displacement Current)가 흐르는 교류형(AC형)으로 구분된다. The PDP is a direct current (DC type) in which the electrode for generating plasma is directly exposed to the plasma so that the conduction current flows directly through the electrode, and the electrode is covered with a dielectric so that the displacement current is not directly exposed. It is divided into alternating current type (AC type).

직류형 플라즈마 디스플레이 패널(DC Plasma Display Panel, 이하 DC PDP)과 교류형 플라즈마 디스플레이 패널(AC Plasma Display Panel, 이하 AC PDP) 각각은 전면판과 배면판, 2매의 유리 기판으로 구성되는데, DC PDP의 전면판에는 음극이 형성되고 배면판에는 양극, 형광체, 저항, 격벽이 형성되며, AC PDP의 전면판에는 방전유지전극, 버스전극, 유전층, 보호막이 형성되고, 배면판에는 어드레스 전극, 유전층, 격벽, 형광층이 형성된다.Each of the DC Plasma Display Panel (DC PDP) and AC Plasma Display Panel (AC PDP) consists of a front panel, a back panel, and two glass substrates. A cathode is formed on the front plate of the anode, and an anode, a phosphor, a resistor, and a partition wall are formed on the back plate of the discharge plate. A discharge sustaining electrode, a bus electrode, a dielectric layer, and a protective film are formed on the front plate of the AC PDP. An address electrode, a dielectric layer, A partition and a fluorescent layer are formed.

도 1은 종래의 교류형 플라즈마 디스플레이 패널의 일반적인 구조를 나타낸다. 1 shows a general structure of a conventional AC plasma display panel.

여기에 도시된 바와 같이 플라즈마 디스플레이 패널(이하, 'PDP'라 한다)은 3전극 면방전(Surface Discharge)형의 플라즈마 디스플레이 패널로써 방전 셀 구조는, 전면판에 유지 전극(sustain electrode:'X')과 스캔 전극(scan electrode;'Y')이 배치되어 있으며, 배면판에 어드레스 전극(address electrode;'A')이 배치되어 있다. As shown here, the plasma display panel (hereinafter referred to as 'PDP') is a three-electrode surface discharge type plasma display panel, and the discharge cell structure has a sustain electrode ('X') on the front plate. ) And a scan electrode 'Y' are disposed, and an address electrode 'A' is disposed on the back plate.

일반적으로, 이와 같은 3전극 면방전형의 PDP는 ADS(Address Display-period Separation)라는 구동 방식을 사용하여 구동된다. In general, such a three-electrode surface discharge type PDP is driven using a driving method called Address Display-Period Separation (ADS).

이하, 도 2를 참조하여 ADS 구동 방법을 개략적으로 설명하면 다음과 같다. Hereinafter, the ADS driving method will be described with reference to FIG. 2 as follows.

여기에 도시된 바와 같이 ADS 구동 방식은 1개의 부필드(subfield)를 리셋(reset) 구간, 어드레스(address) 구간, 및 유지(sustain) 구간으로 나뉘며, 리셋 구간은 단계 1, 단계 2, 단계 3으로 이루어진다. As shown here, the ADS driving method divides one subfield into a reset section, an address section, and a sustain section, and the reset section is divided into steps 1, 2, and 3; Is done.

리셋 구간에서는 유지 전극(X)과 스캔 전극(Y)에 전면 지우기 및 쓰기 펄스를 번갈아 가하여 모든 셀에 일정한 벽 전하를 형성함으로써 어드레스 구간의 어드레스 동작에 대비하게 된다. In the reset period, the entire erase and write pulses are alternately applied to the sustain electrode X and the scan electrode Y to form a constant wall charge in all cells, thereby preparing for the address operation in the address period.

이때, 리셋 구간에 가하는 펄스는 필요에 따라 스므드 라이징(Smooth Rising) 펄스를 사용하거나 1개의 부프레임(subframe)마다 초기화(reset)펄스를 인가하는 방식이 아니라 2 내지 10개의 부프레임마다 초기화 펄스를 인가하는 방식을 사용할 수도 있다. In this case, the pulse applied to the reset period is not a method of using a smooth rising pulse or applying a reset pulse every one subframe, but an initialization pulse every two to ten subframes. It is also possible to use a way to apply.

다음, 어드레스 구간에서는 온(on)시키고자 선택된 셀에 대한 어드레스 전극(A)과 스캔 전극(Y) 사이의 방전을 일으켜 해당 셀에 벽전하를 쌓아둔다. Next, in the address period, a discharge is generated between the address electrode A and the scan electrode Y for the cell selected to be turned on, and wall charges are accumulated in the corresponding cell.

그런 다음, 유지 구간에 유지 전극(X)과 스캔 전극(Y)에 유지 방전을 위한 동작 전압을 인가함으로써 해당 셀에 디스플레이를 위한 방전을 일으키게 되는 것이다. Then, a discharge for display is generated in the corresponding cell by applying an operating voltage for sustain discharge to the sustain electrode X and the scan electrode Y in the sustain period.

이러한 방식으로 동작하는 PDP 텔레비전은 소비전력이 크다는 큰 문제점을 안고 있다. PDP televisions operating in this way suffer from a large problem of high power consumption.

따라서, 이와 같은 문제점을 해결하기 위해 도 3에 도시된 그래프와 같이 APL(Average Picture Level)값이 0%에 가까울수록 어두운 신호일 경우 유지방전개수를 많이 하여 충분한 밝기를 내고, 100%에 가까울수록 밝은 신호일 경우 그 밝기를 줄임으로써 소비전력을 감소시키는 방식을 채택하고 있다. Therefore, in order to solve this problem, as shown in the graph shown in FIG. 3, the closer the APL (Average Picture Level) value is to 0%, the higher the number of sustain discharges in case of a dark signal, and the sufficient brightness, and the closer to 100%, the brighter In the case of signals, power consumption is reduced by reducing the brightness.

그런데 이와 같은 방식은 APL값을 기준으로 소비전력을 조절하고 있으나 사용자의 취향을 반영하고 있지는 않고 있다. However, this method adjusts the power consumption based on the APL value, but does not reflect the user's taste.

즉, 사용자가 즐겨보지 않는 광고방송 중에도 본 방송과 동일한 밝기로 표시하기 때문에 즐겨보지 않는 광고방송 시간에는 전력이 낭비되는 문제점이 있다. In other words, even when the user does not enjoy watching commercials, the display shows the same brightness as the present broadcast, so there is a problem in that power is wasted during commercials not enjoyed.

본 발명은 상기와 같은 문제점을 해결하기 위해 창작된 것으로서, 본 발명의 목적은 플라즈마 표시장치를 통해 디지털 방송을 시청할 때 EPG를 통해 광고방송 구간을 추출하여 광고방송 구간에서는 유지방전 개수를 줄여 어둡게 할 뿐만 아니 라 냉각팬의 동작을 조절하여 소비전력을 줄일 수 있도록 한 플라즈마 디스플레이 패널의 구동장치 및 그 방법을 제공함에 있다. The present invention has been made to solve the above problems, and an object of the present invention is to extract the advertising section through the EPG when watching digital broadcasting through the plasma display device to reduce the number of maintenance discharges in the commercial section to darken In addition, the present invention provides a plasma display panel driving apparatus and a method for reducing power consumption by controlling the operation of a cooling fan.

상기와 같은 목적을 이루기 위한 본 발명에 의한 플라즈마 디스플레이 패널의 구동장치는 디지털 영상신호를 입력받아 디코딩하여 색처리하는 영상처리부와, EPG 정보를 수신받아 광고방송 구간을 추출하는 광고방송 구간추출부와, 광고방송 구간에서 PDP를 구동하기 위하여 출력할 유지방전 개수에 대한 매핑 테이블을 저장하고 있는 메모리와, 광고방송 구간추출부에서 광고방송 구간이라고 판단될 경우 메모리로부터 매핑 테이블을 판독하여 판독된 매핑 테이블을 이용하여 PDP를 동작시키도록 제어하는 제어부와, 제어부의 제어에 따라 PDP를 동작시켜 영상처리부에서 처리된 영상을 디스플레이 시키기 위한 PDP 구동부와, 제어부의 제어에 따라 광고방송 구간이라고 판단될 경우 냉각팬의 구동을 제한시키기 위한 냉각팬 구동부를 포함하여 이루어진 것을 특징으로 한다. An apparatus for driving a plasma display panel according to the present invention for achieving the above object includes an image processing unit for receiving a digital video signal, decoding and color processing, a commercial section extracting unit for receiving EPG information and extracting a commercial section; , A mapping table that stores a mapping table for the number of sustain discharges to be output for driving the PDP in a commercial section, and a mapping table read by reading the mapping table from the memory when the commercial section extractor determines that the commercial section is a commercial section. A control unit for controlling the PDP to operate, a PDP driving unit for displaying the image processed by the image processing unit by operating the PDP under the control of the control unit, and a cooling fan if it is determined to be a commercial section under the control of the control unit. It comprises a cooling fan drive for limiting the driving of It is characterized by.

삭제delete

본 발명에서 광고방송 구간에서의 유지방전 개수는 본 방송 구간에서의 유지방전 개수보다 적은 것을 특징으로 한다. In the present invention, the number of sustain discharges in the commercial section is characterized in that less than the number of sustain discharges in the broadcast section.

또한, 본 발명에 의한 플라즈마 디스플레이 패널의 구동방법은 EPG 정보를 수신하여 광고방송 구간을 추출하는 단계와, 현재 디스플레이 되는 방송이 광고방송 구간으로 판단될 경우 메모리로부터 광고방송 매핑테이블을 판독하는 단계와, 판독된 광고방송 매핑테이블에 따라 유지방전 개수를 조절하여 PDP 구동부의 동작을 제어하는 단계와, 광고방송 구간으로 판단될 경우 냉각팬 구동부의 동작을 최소로 제어하는 단계를 포함하여 이루어진 것을 특징으로 한다. In addition, the method of driving a plasma display panel according to the present invention comprises the steps of: extracting a commercial section by receiving EPG information; and reading a commercial mapping table from a memory when the currently displayed broadcast is determined to be a commercial section; And controlling the operation of the PDP driver by adjusting the number of sustain discharges according to the read commercial mapping table, and controlling the operation of the cooling fan driver to a minimum when it is determined as a commercial section. do.

본 발명에서 광고방송 구간은 프로그램 종료시간과 프로그램 시작시간의 사이 구간으로 판단하는 것을 특징으로 한다. In the present invention, the advertising section is characterized in that it is determined as a section between the program end time and the program start time.

삭제delete

이와 같이 이루어진 본 발명은 디지털 방송을 시청하면서 광고방송이 될 경우 광고방송이 디스플레이되는 동안 PDP의 유지방전 개수를 조절하여 본 방송보다 어둡게 할 뿐만 아니라 냉각팬의 구동도 최소로 구동함으로써 소비전력을 줄일 수 있게 된다. According to the present invention, when the commercial is broadcasted while watching the digital broadcast, the number of discharges of the PDP while the commercial is displayed is not only darker than the broadcast, but also the driving of the cooling fan to minimize the power consumption to reduce the power consumption. It becomes possible.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명하며 종래 구성과 동일한 부분은 동일한 부호 및 명칭을 사용한다. 또한 본 실시예는 본 발명의 권리범위를 한정하는 것은 아니고, 단지 예시로 제시된 것이며 당 분야에서 통상의 지식을 가진 자라면 본 발명의 기술적 사상 내에서 많은 변형이 가능할 것이다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings, and the same parts as in the prior art use the same reference numerals and names. In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only and those skilled in the art will be capable of many modifications within the technical spirit of the present invention.

도 4는 본 발명에 의한 플라즈마 디스플레이 패널의 구동장치를 간략하게 나타낸 블록구성도이다. 4 is a block diagram schematically illustrating a driving device of the plasma display panel according to the present invention.

여기에 도시된 바와 같이 디지털 영상신호를 입력받아 디코딩하여 색처리하는 영상처리부(20)와, EPG 정보를 수신받아 광고방송 구간을 추출하는 광고방송 구간추출부(10)와, 광고방송 구간에서 PDP(80)를 구동하기 위하여 출력할 유지방전 개수에 대한 매핑 테이블을 저장하고 있는 메모리(40)와, 광고방송 구간추출부(10)에서 광고방송 구간이라고 판단될 경우 메모리(40)로부터 매핑 테이블을 판독하여 판독된 매핑 테이블을 이용하여 PDP(80)를 동작시키도록 제어하는 제어부(30)와, 제어부(30)의 제어에 따라 PDP(80)를 동작시켜 영상처리부(20)에서 처리된 영상을 디스플레이 시키기 위한 PDP 구동부(70)를 포함하여 이루어진다. As shown here, the image processing unit 20 receives and decodes a digital video signal, and processes color, a commercial section extractor 10 receiving EPG information and extracting a commercial section, and a PDP in the commercial section. The memory 40 stores a mapping table for the number of sustain discharges to be output to drive 80, and if the commercial section extractor 10 determines that the commercial section is a commercial section, the mapping table is stored from the memory 40. The controller 30 controls the PDP 80 to operate using the read-and-read mapping table, and the PDP 80 is operated under the control of the controller 30 to display an image processed by the image processor 20. It comprises a PDP driver 70 for displaying.

그리고, 제어부(30)의 제어에 따라 광고방송 구간이라고 판단될 경우 냉각팬(60)의 구동을 제한시키기 위한 냉각팬 구동부(50)가 더 포함되어 이루어진다. And, if it is determined that the commercial section under the control of the control unit 30 is further comprises a cooling fan drive unit 50 for limiting the driving of the cooling fan (60).

따라서, 광고방송 구간 중에 PDP(80)를 구동시키기 위한 유지방전 개수를 사전에 광고방송 매핑테이블을 통해 메모리(40)에 저장한 후 광고방송이 되는 구간에서는 광고방송 매핑테이블에 의해 PDP 구동부(70)에서 PDP(80)의 유지방전 개수를 조절하여 어둡게 구동시킴으로써 소비전력을 줄일 수 있도록 할 뿐만 아니라 광고방송 구간에는 냉각팬 구동부(50)를 통해 냉각팬(60)의 구동을 최소화시킴으로써 전력소모를 줄일 수 있도록 한다. Therefore, after storing the number of discharge discharges for driving the PDP 80 in the commercial section in advance in the memory 40 through the commercial mapping table, the PDP driver 70 by the commercial mapping table in the commercial mapping section. In order to reduce the power consumption by controlling the number of discharge discharges of the PDP (80) in the dark, as well as to minimize the power consumption of the cooling fan 60 through the cooling fan drive unit 50 in the commercial section. To reduce it.

또한, 본 발명에 의한 플라즈마 디스플레이 패널의 구동방법을 도 5에 도시된 흐름도를 참조하여 구체적으로 설명하면 다음과 같다. In addition, the method of driving the plasma display panel according to the present invention will be described in detail with reference to the flowchart shown in FIG. 5.

먼저, 광고방송 구간에 소비전력을 최소로 구동시키기 위한 광고방송 제한 기능을 사용자가 사용할 것인가 판단하여 설정한 경우 작동된다(S10). First, it is activated when the user determines whether to use a commercial limit function for driving the minimum power consumption in the commercial section is set (S10).

이때 광고방송 제한기능을 사용자가 선택한 경우에는 EPG 정보를 수신받아 광고방송 구간을 추출하게 된다(S20)(S30). In this case, when the user selects the commercial restriction function, the EPG information is received to extract the commercial section (S20) (S30).

광고방송 구간은 프로그램의 종료시간과 다음 프로그램의 시작시간 사이를 광고방송 구간으로 판단하여 추출한다. The commercial section is extracted by determining between the end time of the program and the start time of the next program as the commercial section.

한편, 디지털 영상신호의 TS신호의 헤더를 판단함으로써 광고방송 구간을 판단할 수도 있다. Meanwhile, the advertisement section may be determined by determining the header of the TS signal of the digital video signal.

이렇게 광고방송 구간을 추출할 경우 현재 방송구간이 광고방송 구간인가 판단하여(S40) 광고방송 구간인 경우에는 메모리의 광고방송 매핑테이블을 판독하여 PDP의 유지방전 개수를 줄여 PDP를 어둡게 구동하게 된다(S50)(S70). When the commercial section is extracted as described above, it is determined whether the current broadcast section is the commercial section (S40). In the case of the commercial section, the commercial mapping table of the memory is read to reduce the number of discharge discharges of the PDP to drive the PDP darkly. S50) (S70).

그러나, 현재 방송구간이 광고방송 구간이 아닐 경우에는 일반적인 본방송 매핑테이블을 판독하여 PDP를 구동하게 된다(S60)(S70). However, if the current broadcasting section is not the advertising section, the general main broadcasting mapping table is read to drive the PDP (S60).

상기한 바와 같이 본 발명은 플라즈마 표시장치를 통해 디지털 방송을 시청할 때 EPG를 통해 광고방송 구간을 추출하여 광고방송 구간에서는 유지방전 개수를 줄여 어둡게 할 뿐만 아니라 냉각팬의 동작을 조절함으로써 사용자가 주의깊게 시청하지 않는 구간에서 어둡게 함으로써 소비전력을 줄일 수 있는 이점이 있다. As described above, the present invention extracts a commercial section through an EPG when watching a digital broadcast through a plasma display device, thereby reducing the number of maintenance discharges in the commercial section, and darkening the user's attention by controlling the operation of the cooling fan. There is an advantage that the power consumption can be reduced by darkening the section not watching.

Claims (6)

디지털 영상신호를 입력받아 디코딩하여 색처리하는 영상처리부와, An image processor which receives a digital image signal and decodes the color image signal; EPG 정보를 수신받아 광고방송 구간을 추출하는 광고방송 구간추출부와, A commercial section extractor which receives EPG information and extracts a commercial section; 광고방송 구간에서 PDP를 구동하기 위하여 출력할 유지방전 개수에 대한 매핑 테이블을 저장하고 있는 메모리와, A memory storing a mapping table for the number of sustain discharges to be output for driving the PDP in a commercial section; 상기 광고방송 구간추출부에서 광고방송 구간이라고 판단될 경우 상기 메모리로부터 매핑 테이블을 판독하여 판독된 매핑 테이블을 이용하여 PDP를 동작시키도록 제어하는 제어부와, A control unit which controls to operate the PDP by reading a mapping table from the memory when the commercial section extracting unit is determined to be a commercial section, and using the read mapping table; 상기 제어부의 제어에 따라 상기 PDP를 동작시켜 상기 영상처리부에서 처리된 영상을 디스플레이 시키기 위한 PDP 구동부와, A PDP driver for operating the PDP under the control of the controller to display an image processed by the image processor; 상기 제어부의 제어에 따라 광고방송 구간이라고 판단될 경우 냉각팬의 구동을 제한시키기 위한 냉각팬 구동부Cooling fan drive unit for limiting the driving of the cooling fan when determined to be a commercial section under the control of the controller 를 포함하여 이루어지는 것을 특징으로 하는 플라즈마 디스플레이 패널의 구동장치. Driving device for a plasma display panel comprising a. 삭제delete 제 1항에 있어서, 상기 광고방송 구간에서의 유지방전 개수는 본 방송 구간에서의 유지방전 개수보다 적은 것을 특징으로 하는 플라즈마 디스플레이 패널의 구동장치. The apparatus of claim 1, wherein the number of sustain discharges in the commercial section is less than the number of sustain discharges in the broadcast section. EPG 정보를 수신하여 광고방송 구간을 추출하는 단계와, Extracting a commercial section by receiving EPG information; 현재 디스플레이 되는 방송이 상기 광고방송 구간으로 판단될 경우 메모리로부터 광고방송 매핑테이블을 판독하는 단계와, Reading a commercial mapping table from a memory when the currently displayed broadcast is determined to be the commercial section; 상기 판독된 광고방송 매핑테이블에 따라 유지방전 개수를 조절하여 PDP 구동부의 동작을 제어하는 단계와,Controlling the operation of the PDP driver by adjusting the number of sustain discharges according to the read commercial mapping table; 상기 광고방송 구간으로 판단될 경우 냉각팬 구동부의 동작을 최소로 제어하는 단계Controlling the operation of the cooling fan driver to a minimum when it is determined that the commercial section 를 포함하여 이루어진 것을 특징으로 하는 플라즈마 디스플레이 패널의 구동방법. Method of driving a plasma display panel comprising a. 제 4항에 있어서, 상기 광고방송 구간은 프로그램 종료시간과 프로그램 시작시간의 사이 구간으로 판단하는 것을 특징으로 하는 플라즈마 디스플레이 패널의 구동방법. The method of claim 4, wherein the commercial section is determined as a section between a program end time and a program start time. 삭제delete
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005210707A (en) * 2003-12-26 2005-08-04 Sharp Corp Display device, television receiver, image display control method and image display control processing program
KR20050118854A (en) * 2004-06-15 2005-12-20 삼성에스디아이 주식회사 Plasma display device and driving method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005210707A (en) * 2003-12-26 2005-08-04 Sharp Corp Display device, television receiver, image display control method and image display control processing program
KR20050118854A (en) * 2004-06-15 2005-12-20 삼성에스디아이 주식회사 Plasma display device and driving method thereof

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