Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019064798) DISPLAY DEVICE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/064798 International Application No.: PCT/JP2018/025509
Publication Date: 04.04.2019 International Filing Date: 05.07.2018
IPC:
G09G 3/36 (2006.01) ,G02F 1/133 (2006.01) ,G02F 1/13357 (2006.01) ,G09G 3/20 (2006.01) ,G09G 3/34 (2006.01)
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
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
34
by control of light from an independent source
36
using liquid crystals
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
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
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
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
34
by control of light from an independent source
Applicants:
シャープ株式会社 SHARP KABUSHIKI KAISHA [JP/JP]; 大阪府堺市堺区匠町1番地 1, Takumi-cho, Sakai-ku, Sakai City, Osaka 5908522, JP
Inventors:
岡本 彩 OKAMOTO, Aya; --
後藤 尚子 GOTO, Naoko; --
Agent:
堅田 裕之 KATATA, Hiroyuki; JP
Priority Data:
2017-18685127.09.2017JP
Title (EN) DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE
(JA) 表示装置
Abstract:
(EN) The present invention suppresses image quality deterioration of a displayed image. A backlight of a display device (1) is divided into a plurality of control areas where emission intensities can be changed independently of one another. Among the control areas, a control area involved in displaying of a high-gradation area (HGA) of an input image is set as a standard control area (SCA), and the position of a part of the standard control area (SCA) corresponding to the high-gradation area (HGA) is set as a high-intensity position (HIP). A backlight control unit of the display device (1) controls the emission intensities of the control areas other than the standard control area (SCA) in accordance with a change of the high-intensity position (HIP) in the standard control area (SCA), and increases the emission intensities of the control areas more for control areas located closer to the high-intensity position (HIP).
(FR) La présente invention supprime la détérioration de qualité d'image d'une image affichée. Un rétroéclairage d'un dispositif d'affichage (1) est divisé en une pluralité de zones de commande où les intensités d'émission peuvent être modifiées indépendamment les unes des autres. Parmi les zones de commande, une zone de commande impliquée dans l'affichage d'une zone à gradation élevée (HGA) d'une image d'entrée est définie en tant que zone de commande standard (SCA) et la position d'une partie de la zone de commande standard (SCA) correspondant à la zone à gradation élevée (HGA) est définie en tant que position haute intensité (HIP). Une unité de commande de rétroéclairage du dispositif d'affichage (1) commande les intensités d'émission des zones de commande autres que la zone de commande standard (SCA) en fonction d'un changement de la position haute intensité (HIP) dans la zone de commande standard (SCA), et augmente les intensités d'émission des zones de commande davantage pour des zones de commande situées plus près de la position haute intensité (HIP).
(JA) 表示される画像の画質劣化を抑制する。 表示装置(1)のバックライトは、互いに独立して発光強度を変更可能な複数の制御エリアに分割されている。複数の制御エリアのうち、入力画像における高階調領域(HGA)の表示に関わる制御エリアを基準制御エリア(SCA)とし、基準制御エリア(SCA)における高階調領域(HGA)に対応する部分の位置を高輝度位置(HIP)とする。表示装置(1)のバックライト制御部は、基準制御エリア(SCA)における高輝度位置の変化(HIP)に応じて、基準制御エリア(SCA)以外の制御エリアの発光強度を制御し、高輝度位置(HIP)に近い制御エリアほど、その発光強度を高める。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)