參數(shù)資料
型號(hào): S6D0114
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 132 RGB X 176 DOT 1-CHIP DRIVER IC WITH INTERNAL GRAM FOR 262,144 Colors TFT-LCD
中文描述: 132的RGB × 176交通部1 -芯片驅(qū)動(dòng)器集成電路的26萬色TFT內(nèi)部革蘭氏液晶顯示器
文件頁數(shù): 67/143頁
文件大?。?/td> 1919K
代理商: S6D0114
S6D0114 132-RGB X 176-DOT 1-CHIP DRIVER IC FOR 262,144-COLOR TFT-LCD DISPLAY
Preliminary
67
POWER SUPPLY CIRCUIT
The following figure shows a configuration of the voltage generation circuit for S6D0114. The step-up circuits consist
of step-up circuits 1 to 4. Step-up circuit1 doubles or triples the voltage supplied to Vci1, and that voltage is doubled,
tripled, or quadrupled in step-up circuit2. Step-up circuit3 reverses the VGH level with reference to VSS or VBS and
generates the VGL level. Step-up circuit 4 reverses the Vci level with reference to VSS and generates the VCL level.
These step-up circuits generate power supplies AVDD, GVDD, VGH, VGL, Vgoff, and Vcom. Reference voltages
GVDD, Vcom, and Vgoff for the grayscale voltage are amplified in amplification circuits 1 and 2 from the internal-
voltage adjustment circuit or the REGP or REGN voltage, and generate each level depending on that voltage.
Connect Vcom to the TFT panel.
Amplfiication
circuit2
(Vgoff
adjustment)
Amplification
circuit1
(GVDD
adjustment)
VcomH
adjustment
circuit
Vcom
amplitude
adjustment
circuit
GVDD
Voltage
adjustment
circuit
Regulator
Vciout
Vci
Vci
VcomR
GVDD output
amplifier
GVDD
Step-up
circuit 1
Step-up
circuit 2
Step-up
circuit 3
VREG2
OUT
VREG1
OUT
VREG2
VREG1
REGP
REGN
Adjust VcomH
voltage (when
using an external
variable resistor)
Vci
When
using
Vciout
Vci1
C11-
C11+
C12-
C12+
VLOUT1
DDVDH
Vci2
C21-
C21+
C22-
C22+
C23-
C23+
VLOUT2
VGH
Vci3
C31-
C31+
VLOUT3
VGL
Vci4
C41-
C41+
VLOUT4
VCL
VGL
VGH
AVDD
VcomH
output
amplifier
VcomL
output
amplifier
VcomH
Vcom
VcomL
VgoffH
output
amplifier
VgoffL
output
amplifier
VgoffH
Vgoffout
VgoffL
VgoffH
amplitude
adjustment
circuit
Vss
Vss
Vdd
Vci
Step-up
circuit 4
Figure 27. Configuration of the Internal Power-Supply Circuit
Notes:
Use the 1uF capacitor.
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