KR20200130603A - 표시장치 - Google Patents
표시장치 Download PDFInfo
- Publication number
- KR20200130603A KR20200130603A KR1020190055032A KR20190055032A KR20200130603A KR 20200130603 A KR20200130603 A KR 20200130603A KR 1020190055032 A KR1020190055032 A KR 1020190055032A KR 20190055032 A KR20190055032 A KR 20190055032A KR 20200130603 A KR20200130603 A KR 20200130603A
- Authority
- KR
- South Korea
- Prior art keywords
- sound
- generating device
- sound generating
- disposed
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
-
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- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
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- H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
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Abstract
Description
도 2는 일 실시예에 따른 표시 장치의 분해 사시도이다.
도 3은 일 실시예에 따른 표시 장치의 저면도이다.
도 4는 도 3의 표시 장치에서 하부 커버와 제어 회로 보드를 생략한 표시 장치의 저면도이다.
도 5는 도 3 및 도 4의 I-I' 선을 따라 자른 표시 장치의 단면도이다.
도 6은 도 3의 표시 장치의 차단 부재 및 음향 발생 장치들을 보여주는 저면도이다.
도 7는 표시 패널의 표시 영역의 일 예를 보여주는 단면도이다.
도 8 내지 도 10은 도 3의 III-III' 선을 따라 자른 단면도이며, 음향 발생 장치들의 진동 방법 및 표시 패널의 진동을 설명하기 위한 예시 도면들이다.
도 11은 도 5의 A영역의 확대도이다.
도 12 및 도 13은 다양한 실시예에 따른 차단 부재, 및 음향 발생 장치의 배치를 보여주는 예시 도면들이다.
도 14는 다른 실시예에 따른 표시 장치에서 하부 커버와 제어 회로 보드를 생략한 표시 장치의 저면도이다.
도 15는 도 3 및 도 14의 II-II' 선을 따라 자른 표시 장치의 단면도이다.
도 16은 도 14 및 도 15의 표시 장치의 차단 부재 및 음향 발생 장치들을 보여주는 저면도이다.
도 17은 도 14 및 도 15의 제4 음향 발생 장치의 일 예를 보여주는 사시도이다.
도 18은 도 17의 IV-IV' 선을 따라 자른 단면도의 일 예이다.
도 19는 제4 음향 발생 장치의 제1 가지 전극과 제2 가지 전극 사이에 배치된 진동층의 진동 방법을 보여주는 일 예시도면이다.
도 20 및 도 21은 도 17 및 도 18에 도시된 제4 음향 발생 장치의 진동에 의한 표시 패널의 진동을 보여주는 측면도들이다.
도 22는 또 다른 실시예에 따른 표시 장치의 저면도이다.
도 23은 도 20의 IV-IV' 선을 따라 자른 표시 장치의 단면도이다.
101: 상부 세트 커버 102: 하부 세트 커버
110: 표시 패널 111: 제1 기판
112: 제2 기판 121: 소스 구동 회로
122: 연성 필름 130: 방열 필름
140: 소스 회로 보드 150: 연성 케이블
160: 제어 회로 보드 170: 타이밍 제어 회로
180: 하부 커버 200, 200_1, 200_2, 200_3 : 차단 부재
210: 제1 음향 발생 장치 211: 마그넷
212: 보빈 213: 보이스 코일
215: 하부 플레이트 230: 제2 음향 발생 장치
231: 프레임부 232: 진동판
250: 제3 음향 발생 장치 260: 제4 음향 발생 장치
Claims (20)
- 제1 기판 및 상기 제1 기판의 일면 상에 위치하는 발광 소자층을 포함하는 표시 패널;
상기 제1 기판의 타면 상에 배치되는 하부 커버;
상기 제1 기판의 타면 상에 배치되고, 보이스 코일을 통해 생성된 자력을 이용하여 상기 표시 패널을 진동하여 제1 음향을 출력하도록 구성된 제1 음향 발생 장치; 및
상기 제1 기판의 타면 상에 배치되고, 상기 표시 패널의 진동에 의해 상기 표시 패널과 상기 하부 커버 사이의 공간의 압력 변화에 따라 제2 음향을 출력하도록 구성된 제2 음향 발생 장치를 포함하는 표시 장치. - 제1 항에 있어서,
상기 제2 음향의 음역 대역은 상기 제1 음향의 음역 대역보다 낮은 표시 장치. - 제1 항에 있어서,
상기 제2 음향 발생 장치는,
상기 표시 패널과 상기 하부 커버 사이의 공간의 압력 변화에 따라 두께 방향으로 진동하도록 구성된 진동판;
상기 진동판의 상기 두께 방향의 진동을 조절하도록 구성된 댐퍼; 및
상기 진동판 및 상기 댐퍼가 고정되는 프레임부; 를 포함하되,
상기 프레임부는 상기 제1 기판과 인접하게 배치되는 표시 장치. - 제3 항에 있어서,
상기 표시 패널은 상기 발광 소자층 상에 위치하는 제2 기판을 더 포함하고,
상기 제1 음향 발생 장치에 의해 상기 표시 패널이 상기 제2 기판 방향으로 팽창하는 경우, 상기 진동판은 상기 하부 커버의 내측 방향으로 팽창하는 표시 장치. - 제3 항에 있어서,
상기 제1 음향 발생 장치에 의해 상기 표시 패널이 상기 제1 기판 방향으로 수축하는 경우, 상기 진동판은 상기 하부 커버의 외측 방향으로 팽창하는 표시 장치. - 제3 항에 있어서,
상기 제1 음향 발생 장치는,
상기 제1 기판의 타면 상에 배치되는 보빈;
상기 보빈을 감싸는 제1 보이스 코일; 및
상기 보빈 상에 배치되며 상기 보빈과 이격되는 제1 마그넷; 및
상기 제1 마그넷 상에 배치되며, 제1 고정 부재에 의해 상기 하부 커버에 고정되는 하부 플레이트를 포함하는 표시 장치. - 제6 항에 있어서,
상기 제2 음향 발생 장치는, 상기 진동판의 가장자리가 고정되고 제2 고정 부재에 의해 상기 하부 커버에 고정되는 프레임부를 더 포함하는 표시 장치. - 제6 항에 있어서,
상기 제1 기판의 타면 상에 배치되고, 인가된 전압에 따라 수축하거나 팽창하는 압전 소자를 이용하여 상기 표시 패널을 진동시켜 제3 음향을 출력하도록 구성된 제3 음향 발생 장치를 더 포함하는 표시 장치. - 제8 항에 있어서,
상기 제3 음향의 음역 대역은 상기 제1 음향의 음역 대역보다 높은 표시 장치. - 제8 항에 있어서,
상기 제1 음향 발생 장치와 상기 제3 음향 발생 장치 사이에 배치되는 차단 부재를 더 포함하는 표시 장치. - 제10 항에 있어서,
상기 차단 부재는 상기 제1 음향 발생 장치와 상기 제3 음향 발생 장치를 각각 둘러싸도록 배치되는 표시 장치. - 제11 항에 있어서,
상기 제2 음향 발생 장치는 상기 제1 음향 발생 장치가 상기 차단 부재에 의해 둘러싸인 제1 영역에 배치되는 표시 장치. - 제11 항에 있어서,
상기 제2 음향 발생 장치는 상기 제3 음향 발생 장치가 상기 차단 부재에 의해 둘러싸인 제2 영역과 다른 영역에 배치되는 표시 장치. - 제8 항에 있어서,
상기 제3 음향 발생 장치는,
제1 구동 전압이 인가되는 제1 전극;
제2 구동 전압이 인가되는 제2 전극; 및
상기 제1 전극과 상기 제2 전극 사이에 배치되며, 상기 제1 전극에 인가되는 제1 구동 전압과 상기 제2 전극에 인가되는 제2 구동 전압에 따라 수축 또는 팽창하도록 구성된 진동층을 포함하는 표시 장치. - 제1 항에 있어서,
상기 제1 음향 발생 장치에 복수의 구동 전압들을 포함하는 제1 음향 신호를 출력하도록 구성된 음향 구동 회로를 더 포함하는 표시 장치. - 제15 항에 있어서,
상기 음향 구동 회로는 상기 제2 음향 발생 장치와 전기적으로 연결되지 않은 표시 장치. - 제15 항에 있어서,
상기 하부 커버 상에 배치되는 회로 보드를 더 구비하고,
상기 음향 구동 회로는 상기 회로 보드 상에 배치되는 표시 장치. - 제17 항에 있어서,
상기 회로 보드 상에 배치되며, 상기 표시 패널의 구동 타이밍을 제어하도록 구성된 타이밍 제어 회로를 더 포함하는 표시 장치. - 제8 항에 있어서,
상기 표시 패널의 타면 상에 부착되는 방열 필름을 더 포함하고,
상기 제1 음향 발생 장치의 보빈은 상기 방열 필름의 일면 상에 부착되는 표시 장치. - 제19 항에 있어서,
상기 제3 음향 발생 장치는 상기 방열 필름의 일면 상에 부착되는 표시 장치.
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JP4923657B2 (ja) | 2006-03-23 | 2012-04-25 | パナソニック株式会社 | スピーカ装置およびこのスピーカ装置を用いたテレビジョン受像機 |
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JP2018129686A (ja) | 2017-02-08 | 2018-08-16 | シャープ株式会社 | ウーハーボックス、表示装置及びテレビジョン受像機 |
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