UPD16782P Ver la hoja de datos (PDF) - NEC => Renesas Technology

Número de pieza

componentes Descripción

Fabricante

UPD16782P

SOURCE DRIVER FOR 300/288-OUTPUT TFT-LCD (NAVIGATION, AUTOMOBILE LCD-TV)

NEC => Renesas Technology 

µPD16782

5. FUNCTIONAL DESCRIPTION

5.1 Multiplexer Circuit

This circuit selects RGB video signals input to the C1 to C3 pins according to the pixel array of the liquid crystal panel,

and outputs the signals to the S1 through S300 pins.

Vertical stripe array, single-/double-side delta array, or mosaic array can be selected by using the MP/TH and MP/1.5

pins.

5.1.1 Vertical stripe array mode (MP/TH = L, MP/1.5 = L)

In this mode, the relation between video signals C1 to C3, and output pins is as shown below. This mode is used to drive

a panel of vertical stripe array. In this mode, the multiplexer circuit is in the through status.

Table 5−1. Relation between Video Signals C1 to C3, and Output Pins (during right shift)

Line No. (number

of INHs)

RESET

INH

S1 to S300

Sampling

0

H

L

C1 (C3)

Output

1

L

↓

C1 (C3)

Output

2

L

↓

C1 (C3)

Output

3

L

↓

C1 (C3)

:

:

:

:

Remark ( ) indicates the case of left shift.

S2 to S299

Sampling

C2 (C2)

Output

C2 (C2)

Output

C2 (C2)

Output

C2 (C2)

:

S3 to S298

Sampling

C3 (C1)

Output

C3 (C1)

Output

C3 (C1)

Output

C3 (C1)

:

S4 to S297 ... S299 to S2 S300 to S1

Sampling

C1 (C3)

Output

C1 (C3)

Output

C1 (C3)

Output

C1 (C3)

:

... Sampling

C2 (C2)

... Output

C2 (C2)

... Output

C2 (C2)

... Output

C2 (C2)

...

:

Sampling

C3 (C1)

Output

C3 (C1)

Output

C3 (C1)

Output

C3 (C1)

:

Figure 5−1. Pixel Arrangement of Vertical Stripe Array and Multiplexer Operation

R C1

B C2 µPD16782

G C3

S1

S2

Right shift (R,/L = "H"), MP/TH = "L", MP/1.5 = "L"

S3

S4

S5

S6

S7

R

B

G

R

B

G

R

R

B

G

R

B

G

R

R

B

G

R

B

G

R

R

B

G

R

B

G

R

R

B

G

R

B

G

R

Data Sheet S15806EJ1V0DS

9

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