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1. (WO2012120586) PROJECTION TYPE IMAGE DISPLAY DEVICE AND LIGHT QUANTITY ADJUSTMENT METHOD
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2012/120586 International Application No.: PCT/JP2011/055041
Publication Date: 13.09.2012 International Filing Date: 04.03.2011
IPC:
H04N 5/74 (2006.01) ,G03B 21/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
74
Projection arrangements for image reproduction, e.g. using eidophor
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21
Projectors or projection-type viewers; Accessories therefor
Applicants: ISHIDA, Kenji[JP/JP]; JP (UsOnly)
FUKUDA, Kazuya[JP/JP]; JP (UsOnly)
KATOU, Tsutomu[JP/JP]; JP (UsOnly)
NEC DISPLAY SOLUTIONS, LTD.[JP/JP]; 4-28, Mita 1-chome, Minato-ku, Tokyo 1080073, JP (AllExceptUS)
Inventors: ISHIDA, Kenji; JP
FUKUDA, Kazuya; JP
KATOU, Tsutomu; JP
Agent: MIYAZAKI, Teruo; 8th Floor, 16th Kowa Bldg., 9-20, Akasaka 1-chome, Minato-ku, Tokyo 1070052, JP
Priority Data:
Title (EN) PROJECTION TYPE IMAGE DISPLAY DEVICE AND LIGHT QUANTITY ADJUSTMENT METHOD
(FR) DISPOSITIF D'AFFICHAGE D'IMAGE DE TYPE À PROJECTION ET PROCÉDÉ DE RÉGLAGE DE QUANTITÉ DE LUMIÈRE
(JA) 投写型画像表示装置及び光量調整方法
Abstract:
(EN) A projection type image display device is provided with: a light source (1); a display element (2) which displays an image on the basis of an input video signal; a trapezoidal distortion correction unit (3) which conducts pixel conversion in which pixel data of an input video signal is compressed or interpolated and supplies a correction signal including a first video signal that is the video signal after the pixel conversion to the display element (2); a detection unit (4) which detects the luminosity distribution of the first video signal; and an adjustment unit (5) which adjusts the light quantity of the light source (1) on the basis of the data of the detected luminosity distribution.
(FR) Le dispositif d'affichage d'image de type à projection de l'invention comprend : une source de lumière (1) ; un élément d'affichage (2) qui affiche une image à partir d'un signal vidéo d'entrée ; une unité de correction de déformation trapézoïdale (3) qui effectue une conversion de pixels consistant à compresser ou interpoler les données de pixels d'un signal vidéo d'entrée, et produit un signal de correction comprenant un premier signal vidéo, qui est le signal vidéo après la conversion de pixels, et qui est destiné à l'élément d'affichage (2) ; une unité de détection (4) qui détecte la distribution de luminosité du premier signal vidéo ; et une unité de réglage (5) qui règle la quantité de lumière de la source de lumière (1) d'après les données de la distribution de luminosité détectée.
(JA)  投写型画像表示装置は、光源(1)と、入力映像信号に基づいて画像を表示する表示素子(2)と、入力映像信号の画素データを圧縮または補間する画素変換を行い、該画素変換後の映像信号である第1の映像信号を含む補正信号を表示素子2に供給する台形歪補正部(3)と、第1の映像信号の輝度分布を検出する検出部(4)と、その検出した輝度分布のデータに基づいて光源(1)の光量を調整する調整部(5)と、を有する。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)