參數(shù)資料
型號： 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)： 128/143頁
文件大小： 1919K
代理商： S6D0114
132-RGB X 176-DOT 1-CHIP DRIVER IC FOR 262,144-COLOR TFT-LCD DISPLAY
S6D0114
Preliminary
128
FRAME FREQUENCY ADJUSTING FUNCTION
The S6D0114 has an on-chip frame-frequency adjustment function. The frame frequency can be adjusted by the
instruction setting (DIV, RTN) during the LCD driver as the oscillation frequency is always same.
If the oscillation frequency is set to high, animation or a static image can be displayed in suitable ways by changing
the frame frequency. When a static image is displayed, the frame frequency can be set low and the low-power
consumption mode can be entered. When high-speed screen switching for an animated display, etc. is required, the
frame frequency can be set high.
RELATIONSHIP BETWEEN LCD DRIVE DUTY AND FRAME FREQUENCY
The relationships between the LCD drive duty and the frame frequency is calculated by the following expression.
The frame frequency can be adjusted in the 1H period adjusting bit (RTN) and in the operation clock division bit
(DIV) by the instruction.
Frame Frequency =
f
OSC
Clock cycles per raster-row x division ratio x (Line+B)
[Hz]
f
OSC
: R-C oscillation frequency
Line: Number of raster-rows (NL bit)
Clock cycles per raster-row: RTN bit
Division ratio: DIV bit
B: Blank period(Back porch + Front Porch)
Figure 92. Formula for the frame frequency
Example calculation
Driver raster-row: 176
1H period: 16 clock (RTN3 to 0 = 0000)
Operation clock division ratio: 1division
B: Blank period (BP + FP): 8
fosc = 60Hz x (0+16) clock x 1 division x (176+B) lines = 177 [kHz]
In this case, the RC oscillation frequency becomes 177 kHz. The external resistance value of the RC oscillator must
be adjusted to be 177 kHz.
Note: When FLD1-0=”11”(interlace drive), B = BP + FP + BLP1 + BLP2
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