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1. (WO2017154691) DISPLAY DEVICE
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Pub. No.: WO/2017/154691 International Application No.: PCT/JP2017/008054
Publication Date: 14.09.2017 International Filing Date: 01.03.2017
IPC:
G09G 3/36 (2006.01) ,G02F 1/133 (2006.01) ,G02F 1/13357 (2006.01) ,G08B 5/36 (2006.01) ,G08B 23/00 (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
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
5
Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
22
using electric transmission; using electromagnetic transmission
36
using visible light sources
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
23
Alarms responsive to unspecified undesired or abnormal conditions
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:
山口 典昭 YAMAGUCHI, Noriaki; --
Agent:
島田 明宏 SHIMADA, Akihiro; JP
川原 健児 KAWAHARA, Kenji; JP
奥田 邦廣 OKUDA, Kunihiro; JP
河本 悟 KAWAMOTO, Satoru; JP
Priority Data:
2016-04415908.03.2016JP
Title (EN) DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE
(JA) 表示装置
Abstract:
(EN) The present invention provides a display device with which it is possible to display useful information in an easily readable manner at a time of normal drive and display emergency information continuously for a long time at a time of emergency drive that is exercised in case of emergency. When the supply of power being supplied from an external power source (40) is stopped, emergency information data EMD is read out from a ROM (13) and written into a pixel circuit (27). Because a TFT (28) having a channel layer comprising an oxide semiconductor of which the leakage current is very small is formed in the pixel circuit (27), the written emergency information data EMD is held over a long time even when the supply of power SV2 from a battery circuit unit (30) is stopped. Thus, even when the supply of electricity from the external power source (40) is stopped, emergency information can be issued to persons present in the vicinity of the display device.
(FR) La présente invention concerne un dispositif d'affichage avec lequel il est possible d'afficher des informations utiles d'une manière facilement lisible à un moment de commande normale et d'afficher des informations d'urgence en continu pendant une longue période à un moment de commande d'urgence qui est appliquée en cas d'urgence. Lorsque l'alimentation en énergie fournie par une source d'alimentation externe (40) est arrêtée, les données d'informations d'urgence EMD sont lues à partir d'une ROM (13) et écrites dans un circuit de pixels (27). Du fait qu'un TFT (28) ayant une couche de canal comprenant un oxyde semiconducteur dont le courant de fuite est très petit est formé dans le circuit de pixels (27), les données d'informations d'urgence EMD écrites sont maintenues pendant une longue durée même lorsque l'alimentation en énergie SV2 depuis une unité de circuit à batterie (30) est arrêtée. Ainsi, même lorsque l'alimentation électrique depuis la source d'alimentation externe (40) est arrêtée, des informations d'urgence peuvent être délivrées aux personnes présentes à proximité du dispositif d'affichage.
(JA) 通常駆動時には有用な情報を見やすく表示すると共に、緊急事態が発生したときに行う緊急駆動時には緊急情報を長時間表示し続けることが可能な表示装置を提供する。 外部電源(40)から供給されていた電力の供給が停止されたとき、緊急情報データEMDをROM(13)から読み出して画素回路(27)に書き込む。画素回路(27)には、リーク電流が非常に小さい酸化物半導体からなるチャネル層を有するTFT(28)が形成されているので、バッテリ回路部(30)からの電力SV2の供給を停止しても、書き込まれた緊急情報データEMDは長時間に渡って保持される。これにより、外部電源(40)からの給電が停止されても、表示装置の近くにいる人に緊急情報を知らせることができる。
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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, 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)