SIGNAL LINE DRIVE CIRCUIT AND DISPLAY DEVICE USING THE SAME

• Main Authors: TSUJINO SACHIO, MAEDA KAZUHIRO, TAKAHASHI KEIJI
• Format: Patent
• Language: English; Korean
• Published: 09.06.2003
• Edition: 7
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; FREQUENCY-CHANGING; INFORMATION STORAGE; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; STATIC STORES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PURPOSE: A signal line drive circuit and a display device using the same are provided which consumes a small amount of electric power at the same time and makes it possible to specify the timings of the operation of signal line drive sections for driving signal lines, in accordance with the input signals, even if one of input signals having different signal line resolution is inputted. CONSTITUTION: A signal line drive circuit(3) comprises a scanning section for outputting timing signals to respective signal line drive sections provided in accordance with a plurality of signal lines and the timing signals specify timings of the signal line drive sections being operated in accordance with an input signal. The scanning section includes a plurality of shift registers of respective systems, and a controller(14) for controlling operation or non-operation of at least one of the shift registers of respective systems, in accordance with signal line resolution of the input signal. 데이터신호선 구동회로는, 홀수 번째의 데이터신호선을 구동하는 샘플링 유닛의 각각에, 각 단이 대응하는 시프트 레지스터와, 상기 시프트 레지스터와는 별개로, 짝수 번째의 데이터신호선을 구동하는 샘플링 유닛의 각각에, 각 단이 대응하는 시프트 레지스터를 구비하고 있다. 저해상도모드 시에는, 일방의 시프트 레지스터만이 동작하고, 상기 시프트 레지스터의 각 단 출력에 기초하여, 각각 대응하는 샘플링 유닛과, 다음 샘플링 유닛의 쌍방으로의 타이밍신호가 생성된다. 이에 의해, 서로 다른 신호선 해상도의 입력신호 중 어느 하나가 입력되는 경우에도, 각 신호선을 구동하는 신호선 구동부에, 입력신호에 따른 타이밍을 지시할 수 있음에도 불구하고, 저소비전력의 신호선 구동회로를 실현한다.