Global Patent Index - EP 0972282 A1

EP 0972282 A1 2000-01-19 - DEVICE FOR CONTROLLING A MATRIX DISPLAY CELL

Title (en)

DEVICE FOR CONTROLLING A MATRIX DISPLAY CELL

Title (de)

VORRICHTUNG ZUR STEUERUNG EINER MATRIXANZEIGESTELLE

Title (fr)

DISPOSITIF DE COMMANDE D'UNE CELLULE D'UN ECRAN MATRICIEL

Publication

EP 0972282 A1 (FR)

Application

EP 98949077 A

Priority

  • FR 9802236 W
  • FR 9715863 A

Abstract (en)

[origin: FR2772501A1] The invention concerns a device for controlling a matrix display cell comprising a set of control circuits (P'ij) arranged in lines and in columns and controlling an elementary point (XL), the state of each elementary point being a function of first and second control signals (L'i, C'j) applied on the control circuit (P'ij) respectively by the lines (L'I) and the columns (C'j). The control circuit (P'ij) consists of a first transistor (MN2) connecting the elementary point (XL) to the corresponding line (L'i) receiving the first signal and a second transistor (MN1) whereof a first electrode is connected to the first transistor grid, which is itself connected to the corresponding column (C'j) receiving the second signal, and whereof the second electrode is connected to a reference potential. The invention is particularly applicable to flat screens such as liquid crystal displays or electroluminescent displays.

IPC 1-7

G09G 3/36; G09G 3/30; G09G 3/32

IPC 8 full level

G02F 1/133 (2006.01); G09G 3/20 (2006.01); G09G 3/30 (2006.01); G09G 3/36 (2006.01)

CPC

G09G 3/2011 (2013.01); G09G 3/30 (2013.01); G09G 3/3648 (2013.01); G09G 2300/0809 (2013.01); G09G 2300/0814 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0259 (2013.01); G09G 2310/027 (2013.01); G09G 2310/066 (2013.01); G09G 2320/0223 (2013.01)

Citation (search report)

See references of WO 9931650A1

DCS

DE FR GB IT NL

DOCDB simple family

FR 2772501 A1 19990618; FR 2772501 B1 20000121; DE 69828158 D1 20050120; DE 69828158 T2 20051222; EP 0972282 A1 20000119; EP 0972282 B1 20041215; JP 2001512588 A 20010821; KR 20000070943 A 20001125; US 2002130827 A1 20020919; US 6844874 B2 20050118; WO 9931650 A1 19990624