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Pub. No.:    WO/2009/063797    International Application No.:    PCT/JP2008/070249
Publication Date: 22.05.2009 International Filing Date: 30.10.2008
G09G 3/36 (2006.01), G02F 1/133 (2006.01), G09G 3/20 (2006.01), G09G 3/34 (2006.01)
Applicants: SEMICONDUCTOR ENERGY LABORATORY CO., LTD. [JP/JP]; 398, Hase, Atsugi-shi, Kanagawa 2430036 (JP) (For All Designated States Except US).
FUKUTOME, Takahiro [JP/JP]; (JP) (For US Only).
NISHI, Takeshi; (For US Only)
Inventors: FUKUTOME, Takahiro; (JP).
NISHI, Takeshi;
Priority Data:
2007-295011 14.11.2007 JP
Abstract: front page image
(EN)A liquid crystal display device is provided, which includes a liquid crystal element including a pixel electrode, a counter electrode, and a liquid crystal disposed between the pixel electrode and the counter electrode, a light source, a comparing circuit configured to compare a potential of the pixel electrode and a reference potential, and supply an output potential in accordance with the result of the comparison, and a control circuit configured to switch turning-on and turning-off of the light source in accordance with the output potential supplied from the comparing circuit.
(FR)L'invention porte sur un dispositif d'affichage à cristaux liquides, qui comprend un premier élément à cristal liquide comprenant une électrode de pixel, une contre-électrode et un cristal liquide disposé entre l'électrode de pixel et la contre-électrode, une source de lumière, un circuit de comparaison configuré de façon à comparer un potentiel de l'électrode de pixel et un potentiel de référence, et à délivrer un potentiel de sortie en fonction du résultat de la comparaison, et un circuit de commande configuré de façon à commuter la marche et l'arrêt de la source de lumière en fonction du potentiel de sortie délivré à partir du circuit de comparaison.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)