UPD161623 datasheet(69/83 Pages) NEC

69 / 83 page

Data Sheet S15817EJ2V0DS

µµµµPD161623

(7/8)

Bit

Symbol

Function

Sets the output bias current of the reference voltage generator amplifier for setting the black level

of the positive-polarity and negative-polarity sides (when VPH and VNH are normally white), as

shown below.

Determine the amplifier capacity after sufficient evaluation with the actual TFT panel to be used.

BI2

BI1

BI0

Amplifier Bias Current

000

0.20

µA

001

0.50

µA

010

0.10

µA

011

0.05

µA

100

1.00

µA

101

1.50

µA

110

2.00

µA

111

3.00

µA

R31

D2 to D0

BIn

R36

D7 to D0

GPHn

Sets the voltage value of the black level of positive polarity.

For more detail, refer to 5.9

γγγγ-Curve Correction Power Supply Circuit.

R37

D7 to D0

GNHn

Sets the voltage value of the white level of negative polarity.

For more detail, refer to 5.9

γγγγ-Curve Correction Power Supply Circuit.

R38

D7 to D0

GPLn

Sets the voltage value of the white level of positive polarity.

For more detail, refer to 5.9

γγγγ-Curve Correction Power Supply Circuit.

R39

D7 to D0

GNLn

Sets the voltage value of the white level of positive polarity.

For more detail, refer to 5.9

γγγγ-Curve Correction Power Supply Circuit.

Sets the data value at which the pre-charge direction is switched during positive-polarity drive.

The value set to RDTPn corresponds to the higher 4bits of display RAM data DBn (6 bits for each

of RFB), as shown below.

RDTP3

RDTP2

RDTP1

RDTP0

Dot 1 (R)

D17

D16

D15

D14

Dot 2 (G)

D11

D10

Dot 3 (B)

D7 to D4

RDTPn

Sets the data value at which the pre-charge direction is switched during negative-polarity drive.

The value set to RDTNn corresponds to the higher 4 bits of display RAM data DBn (6 bits for

each of RGB), as shown below.

RDTN3

RDTN2

RDTN1

RDTN0

Dot 1 (R)

D17

D16

D15

D14

Dot 2 (G)

D11

D10

Dot 3 (B)

R40

D3 to D0

RDTNn

R42

GHSW

Controls the

γ-correction voltage input pins (V0 to V5) and the switch for connecting

the

µ PD161623 internal γ-correction resistor.

0: Switch OFF (disconnected)

1: Switch ON (connected)

R45

This bit is used for calibration.

The time from calibration start command execution until calibration stop command execution

becomes the time for 1 line.

0: Calibration stop

1: Calibration start

UPD161623 Datenblatt(PDF) 69 Page - NEC

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