LH1691 데이터 시트보기 (PDF) - Sharp Electronics

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LH1691

240-output TFT-LCD Gate Driver IC

Sharp Electronics 

LH1691

FUNCTIONAL OPERATIONS OF EACH BLOCK

BLOCK

FUNCTION

Control Logic

Used to create signals necessary for mode selecting signal, cascade sequence setting

signal and for operation of bi-directional shift register.

Bi-directional Shift

Used as transfer circuit of LCD drive output start signal. It is possible to set LCD drive

Register

output sequence of OG1/OG240 direction or OG240/OG1 direction.

Used as circuit which shifts LCD drive output signals transferred by bi-directional shift

Level Shifter

register to VDD-VEE level.

,
Output Circuit

Configured with output buffers to output VDD-VEE level.

INPUT/OUTPUT CIRCUITS

VLS

I

To Internal Circuit ¿Applicable pins¡

Level Shifter Internal Logic

(VLS-0 V/VCC-VSS) (VCC-VSS)

CKV, SPV, CE, R/L,

MODE1, MODE2,

VSS

TEST1, TEST2

Fig. 1 Input Circuit

VDD

O

VEE

Fig. 2 Output Circuit

From Internal Circuit

(VDD-VEE)

¿Applicable pins¡

OG1-OG240

3

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