KR100556183B1 - power supply device in plasma display panel - Google Patents
power supply device in plasma display panel Download PDFInfo
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- KR100556183B1 KR100556183B1 KR1019990054068A KR19990054068A KR100556183B1 KR 100556183 B1 KR100556183 B1 KR 100556183B1 KR 1019990054068 A KR1019990054068 A KR 1019990054068A KR 19990054068 A KR19990054068 A KR 19990054068A KR 100556183 B1 KR100556183 B1 KR 100556183B1
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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
- G09G3/28—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 luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—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 luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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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
- G09G3/28—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 luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—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 luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—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 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
- G09G3/294—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 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
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- Power Engineering (AREA)
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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
본 발명의 플라즈마 디스플레이 패널의 전원공급장치는, 그 출력되는 전압을 Y-드라이버(20) 및 X-드라이버를 거쳐 패널의 각 표시전극에 인가하는 전원장치(10), 상기 Y-드라이버(20) 및/또는 X-드라이버의 출력단에 접속되어 패널에 인가되는 신호에 따른 전압 또는 전류를 검출하고, 그 검출된 전압 또는 전류를 상기 Y-드라이버(20) 및/또는 X-드라이버의 입력단으로 피드백하는 피드백수단(40); 및 상기 피드백수단(40)으로부터 인가되는 전압을 패널을 구동시키기 위한 보상전압으로 승압 또는 감압하여 Y-드라이버(20) 및/또는 X-드라이버의 입력단으로 출력하는 전압제어수단(50)을 포함하여 구성하는 것을 특징으로 한다.The power supply device of the plasma display panel of the present invention, the power supply device 10 for applying the output voltage to each display electrode of the panel via the Y-driver 20 and the X-driver, the Y-driver 20 And / or detect a voltage or current according to a signal applied to the panel by being connected to an output terminal of the X-driver, and feeding back the detected voltage or current to the input terminal of the Y-driver 20 and / or the X-driver. Feedback means 40; And voltage control means 50 for boosting or reducing the voltage applied from the feedback means 40 to a compensation voltage for driving the panel and outputting the voltage to the input terminal of the Y-driver 20 and / or the X-driver. It is characterized by the configuration.
이에 따라, 패널의 노치 현상과 R, G, B의 데이터 값에 따라 강하되는 방전전압을 보상함으로써, 플라즈마 디스플레이 패널의 유지구동시에 유지펄스의 일그러짐을 보상하며, 그에 따른 패널의 특성이 향상되는 등의 효과가 있다.Accordingly, by compensating for the notch phenomenon of the panel and the discharge voltage that falls according to the data values of R, G, and B, the distortion of the sustain pulse is compensated for during the sustain operation of the plasma display panel, thereby improving the characteristics of the panel. Has the effect of.
Description
도 1은 종래의 플라즈마 디스플레이 패널의 구동장치를 도시한 개략블록도,1 is a schematic block diagram showing a driving apparatus of a conventional plasma display panel;
도 2는 종래의 플라즈마 디스플레이 패널 부하에 따른 서스테인 전압강하를 도시한 펄스 파형도,2 is a pulse waveform diagram showing a sustain voltage drop according to a conventional plasma display panel load;
도 3은 종래의 플라즈마 디스플레이 패널의 서스테인 펄스의 일그러짐을 도시한 펄스 파형도,3 is a pulse waveform diagram showing distortion of a sustain pulse of a conventional plasma display panel;
도 4는 본 발명의 일실시예에 따른 플라즈마 디스플레이 패널 구동장치의 구성을 도시한 개략블록도,4 is a schematic block diagram showing a configuration of a plasma display panel driving apparatus according to an embodiment of the present invention;
도 5는 본 발명의 일실시예에 따른 플라즈마 디스플레이 패널 구동장치의 전원공급장치 구성을 도시한 상세 블록도,5 is a detailed block diagram illustrating a power supply device configuration of a plasma display panel driving apparatus according to an embodiment of the present invention;
도 6은 도 1의 회로구현을 위한 회로도,6 is a circuit diagram for implementing the circuit of FIG.
도 7은 도 6에 도시된 구동부의 동작 타이밍도 및7 is an operation timing diagram of the driving unit illustrated in FIG. 6;
도 8는 본 발명의 일실시예에 따른 플라즈마 디스플레이 패널의 전원공급장치에 의한 전압 보상을 도시한 펄스 파형도이다.8 is a pulse waveform diagram illustrating voltage compensation by a power supply of a plasma display panel according to an embodiment of the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 전원장치 20 : Y드라이버10: power supply device 20: Y driver
30 : 스캔IC 40 : 피드백수단30: scan IC 40: feedback means
41 : 패널입력전압 센서수단 411: 전원출력전압 센서수단41: panel input voltage sensor means 411: power output voltage sensor means
42 : 비교기 50 : 전압제어수단을 포함한 전원공급장치42: comparator 50: power supply including voltage control means
52 : 승압회로수단 F1∼F5 : 트랜지스터52 booster circuit means F1 to F5: transistor
D1∼D2 : 다이오드 L : 코일D1 to D2: Diode L: Coil
C : 콘덴서C: condenser
본 발명은 플라즈마 디스플레이 패널 구동장치에 관한 것으로, 더욱 상세하게는 패널을 구동시키기 위해 Y-드라이버 및/또는 X-드라이버에서 패널에 인가되는 전압을 검출하여, 이 검출된 전압과 전원장치의 출력전압과 차이를 비교하여 방전전류량에 따라 강하되는 방전전압을 보상하am로써, 패널의 유지 구동시 유지 펄스의 일그러짐을 보상하여 패널의 특성을 향상시킬 수 있도록 한 플라즈마 디스플레이 패널 구동장치의 전원공급장치에 관한 것이다.The present invention relates to a plasma display panel driving apparatus, and more particularly, to detect a voltage applied to a panel in a Y-driver and / or an X-driver to drive a panel, thereby detecting the detected voltage and the output voltage of the power supply. Compensation for the discharge voltage dropped according to the amount of discharge current by comparing the difference between the two and the difference, and to compensate for the distortion of the sustain pulse during the sustain operation of the panel to improve the characteristics of the panel display device power supply device It is about.
종래의 플라즈마 디스플레이 패널의 전원공급장치는, 도 1에 도시된 바와 같이, 전원장치(10)로부터 출력되는 전압이 Y-드라이버(20) 또는 X-드라이버(도시되지 않았음)를 거쳐 플라즈마 디스플레이 패널에 인가된다.In the conventional plasma display panel power supply device, as shown in FIG. 1, the voltage output from the
이러한 종래의 패널에서는 방전전류량에 따라 방전전압의 강하가 일어나게 되며, 그 전압강하에 의한 펄스 파형도가 도 2에 도시되어 있다.In such a conventional panel, a drop in discharge voltage occurs according to the amount of discharge current, and a pulse waveform diagram due to the voltage drop is shown in FIG. 2.
또한, 도 1 및 도 2에 도시된 바와 같이, ①은 블랙패턴을 나타내며, ②는 레드패턴을 나타내며, ③은 그린패턴+레드패턴을 나타내며, ④는 화이트패턴(R+G+B)등에 의한 전압강하를 도시하고 있다.1 and 2, ① denotes a black pattern, ② denotes a red pattern, ③ denotes a green pattern + red pattern, and ④ denotes a white pattern (R + G + B). The voltage drop is shown.
또한, 도 3에는 종래의 플라즈마 디스플레이 패널의 서스테인 펄스의 일그러짐을 도시한 펄스 파형도가 도시되며, 도 3에 도시된 바와 같이, 전체 전압강하를 식으로 도시하면 다음과 같다.3 is a pulse waveform diagram showing distortion of the sustain pulse of the conventional plasma display panel. As shown in FIG. 3, the overall voltage drop is expressed as follows.
V = I(peak) × R(total) + ScanIC DropV = I (peak) × R (total) + ScanIC Drop
V = 100(∼120)A × 0.138 + 14VV = 100 (~ 120) A × 0.138 + 14 V
V = 28∼31V 정도의 전압이 강하된다.The voltage of about V = 28-31V drops.
또한, 회로에 의한 전압강하를 식으로 도시하면 다음과 같다.In addition, the voltage drop by the circuit is shown as follows.
V = I(peak) × R(circuit)V = I (peak) × R (circuit)
V = 100(∼120)A × 0.138V = 100 (~ 120) A × 0.138
V = 14∼17V 정도의 전압이 강하된다.The voltage of V = 14 to 17V drops.
그러나, 이러한 종래의 플라즈마 디스플레이 패널의 전원공급장치의 구성과 작용에 의하면, Y-드라이버 및/또는 X-드라이버에서 출력되는 전압을 직접 패널의 전극단자에 공급함으로써, 패널의 각 R, G, B 데이터량과 그 패널의 방전전류에 의해 발생되는 전압 강하에 의해 패널의 유지 구동시 유지 펄스의 일그러짐이 발생하고, 그에 따른 패널의 특성이 저하되는 등의 문제가 있다. However, according to the configuration and operation of the power supply apparatus of the conventional plasma display panel, by supplying the voltage output from the Y-driver and / or X-driver directly to the electrode terminal of the panel, each R, G, B of the panel The voltage drop caused by the amount of data and the discharge current of the panel causes distortion of the sustain pulse during the sustain driving of the panel, resulting in deterioration of the characteristics of the panel.
따라서, 본 발명은 상기와 같은 문제점을 해소하기 위하여 발명된 것으로, 패널의 각 R, G, B 데이터량과 패널의 방전전류에 의해 강하되는 방전전압을 보상함으로써, 그 패널의 유지 구동시 유지 펄스의 일그러짐을 보상하여 패널의 특성을 향상시킬 수 있는 플라즈마 디스플레이 패널 구동장치의 전원공급장치를 제공하는 데에 그 목적이 있다.Accordingly, the present invention has been invented to solve the above problems, by compensating for the discharge voltage dropped by each R, G, B data amount of the panel and the discharge current of the panel, thereby maintaining the sustain pulse during the sustain driving of the panel. It is an object of the present invention to provide a power supply of a plasma display panel driving apparatus capable of compensating for distortion of the panel and improving characteristics of the panel.
이러한 목적을 달성하기 위해 본 발명에 따른 플라즈마 디스플레이 패널의 전원공급장치는, 그 출력 전압을 Y-드라이버 및/또는 X-드라이버를 통해 패널의 각 표시전극 인가하는 전원장치 및 상기 Y-드라이버 및/또는 X-드라이버의 출력단에 접속되어, 그 패널에 인가되는 전압 또는 전류를 검출하여 그 검출된 결과를 상기 전원장치의 출력전압과 비교하여 그 차이값을 전원장치(50)에 제공하는 피이드백수단(40)을 포함하며, 상기 전원장치(50)는 전압제어수단이 포함되어 있어 상기 피이드백수단(40)으로부터 공급된 정보를 기초로 하여 보정된(승압된) 전압을 Y-드라이버 및/또는 X-드라이버에 공급하는 구성하는 것을 특징으로 한다.In order to achieve the above object, the power supply apparatus of the plasma display panel according to the present invention includes a power supply unit for applying each of the display electrodes of the panel through the Y-driver and / or the X-driver, and the Y-driver and / or Or a feedback means connected to an output terminal of the X-driver and detecting a voltage or current applied to the panel and comparing the detected result with an output voltage of the power supply device and providing the difference value to the
또한, 상기 피드백수단은, 상기 Y-드라이버 및/또는 X-드라이버로부터 패널에 인가되는 전압을 측정하는 제1의 센서(41)와 전원장치에서 Y-드라이버 및/또는 X-드라이버에 공급하는 전압을 측정하는 제2의 센서(411), 및 상기 제1의 센서(41)와 제2의 센서(411)의 각 측정값을 비교하는 비교기(42)를 포함하는 것을 특징으로 한다.In addition, the feedback means may include a first sensor 41 for measuring a voltage applied to the panel from the Y-driver and / or an X-driver and a voltage supplied to the Y-driver and / or the X-driver by the power supply. And a
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 일실시예를 상세히 설명 하면, 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 4에는 본 발명의 일실시예에 따른 플라즈마 디스플레이 패널의 전원공급장치의 구성이 개략블록도로서 도시되며, 도 5에는 본 발명의 일실시예에 따른 플라즈마 디스플레이 패널의 전원공급장치의 구성이 상세 블록도로서 도시된다.4 is a schematic block diagram of a power supply of the plasma display panel according to an embodiment of the present invention, Figure 5 is a detailed configuration of the power supply of the plasma display panel according to an embodiment of the present invention It is shown as a block diagram.
본 발명의 플라즈마 디스플레이 패널 구동장치의 전원공급장치는, 도 4 및 도 5에 도시된 바와 같이, 피이드백수단(40) 및 전압제어수단을 포함한 전원장치(50)로 구성된다.The power supply of the plasma display panel driving apparatus of the present invention, as shown in Figs. 4 and 5, is composed of a
상기 피드백수단(40)은, 패널에 인가되는 R, G, B 데이터량에 의해 강하된 전압을 검출하는 제1의 센서수단(41)과, 전원장치로부터 Y-드라이버 및/또는 X-드라이버에 인가되는 전압을 검출하는 제2의 센서수단, 제1의 센서 수단으로부터 검출된 전압과 제2의 센서수단으로부터 검출된 전압을 비교하여 보상전압(Verror)을 출력하는 비교기(42)로 구성된다. 따라서, 전압제어수단을 포함한 전원장치(50)는 패널의 입력단을 검출하는 제1의 센서(41)에 의한 전압과 전원의 출력을 검출하는 제2센서(411)의 차이 전압(Verror)에 의해 제어된다. The feedback means 40 comprises first sensor means 41 for detecting a voltage dropped by the amount of R, G, and B data applied to the panel, and from a power supply to a Y-driver and / or an X-driver. And a
도 6은 도1의 개략도를 구현하기 위한 회로도로서, 트랜지스터(F1∼F5)와, 다이오드(D1∼D2)와, 코일(L), 및 콘덴서(C)등의 조합으로 구성되며, 그와 같이 구성되는 구동부는 도 7에서 도시하는 바와 같은 동작 타이밍에 의해 동작된다.FIG. 6 is a circuit diagram for implementing the schematic diagram of FIG. 1 and is composed of a combination of transistors F1 to F5, diodes D1 to D2, coil L, capacitor C, and the like. The driving unit constituted is operated by the operation timing as shown in FIG.
도8은 본 발명의 일실시예에 따른 플라즈마 디스플레이 패널 구동장치의 전원공급장치에 의한 전압보상을 설명하기 위한 펄스 파형도이다. 즉, 전원장치에서 공급한 패널에 인가하는 전압은 데이터량에 따라 ΔV만큼 강하되며, ΔV만큼 강하 된 전압을 피이드백 수단(40)의 제1의 센서(41)가 검출하고, 제2의 센서는 처음에 전원장치의 출력전압을 검출하여, 제1의 센서와 제2의 센서의 각 검출값을 비교하여 ΔV만큼 보상된 전압값을 전원장치(50)에 인가하므로써 데이터량에 따라 강하된 전압값이 보상된 전압을 Y-드라이버 및/또는 X-드라이버에 공급하게 된다.8 is a pulse waveform diagram illustrating voltage compensation by a power supply device of a plasma display panel driving apparatus according to an exemplary embodiment of the present invention. That is, the voltage applied to the panel supplied from the power supply device drops by ΔV according to the data amount, and the first sensor 41 of the feedback means 40 detects the voltage dropped by ΔV, and the second sensor First detects the output voltage of the power supply device, compares the detected values of the first sensor and the second sensor, and applies the voltage value compensated by ΔV to the
이상에서 설명한 본 발명의 일실시예에 따른 플라즈마 디스플레이 패널의 전원공급장치의 구성 및 작용에 의하면, 패널의 방전전류량과 R, G, B의 데이터량에 따라 강하되는 방전전압을 보상함으로써, 플라즈마 디스플레이 패널의 유지구동시에 유지펄스의 일그러짐을 보상하며, 그에 따른 패널의 특성이 향상되는 등의 효과가 있다. According to the configuration and operation of the power supply of the plasma display panel according to the embodiment of the present invention described above, the plasma display by compensating for the discharge voltage which is dropped according to the discharge current amount of the panel and the data amount of R, G, B Compensation for the distortion of the holding pulse at the time of driving the panel, thereby improving the characteristics of the panel.
이상에서 첨부된 도면을 참조하여 본 발명을 일실시예에 의해 구체적으로 설명하였지만, 본 발명은 이에 의해 제한되는 것은 아니고, 당업자의 통상적인 지식의 범위 내에서 그 변형이나 개량 내지 응용이 가능하다. Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited thereto, and modifications, improvements, and applications thereof are possible without departing from the ordinary knowledge of those skilled in the art.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019990054068A KR100556183B1 (en) | 1999-11-30 | 1999-11-30 | power supply device in plasma display panel |
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| KR1019990054068A KR100556183B1 (en) | 1999-11-30 | 1999-11-30 | power supply device in plasma display panel |
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