S2D13782 Datasheet, PDF (1/2 Pages) Epson Company – Image Enhancement IC with LCD Backlight Control Function

S2D13782
Image Enhancement IC with LCD Backlight Control Function
■ OVERVIEW
The S2D13782 is an image enhancement IC that meets the quality requirements for in-vehicle ICs. It has color correction,
noise reduction, edge enhancement (sharpness) and other features. The S2D13782 also generates LCD panel control
signals and incorporates a backlight control function.
The Auto Movie Enhancement 2 Extended – Optimizer (AME2EX-OPT) can reduce the power consumption by 30% to
50% by adjusting the backlight of the LCD panel to an optimum luminous intensity. In conjunction with backlight control,
AME2EX-OPT can display colorful images with a high contrast by automatically adjusting input images to optimum
brightness, contrast, gamma curves and color saturation.
The color management function of the Auto Movie Enhancement 2 Extended - Color Converter Engine (AME2EX-CCE)
allows color hue and saturation to be freely adjusted in manual mode so that colors can be reproduced faithfully according to
the characteristics of the LCD panel connected.
The Noise Canceller and Color Expander (NCX) reduces block noise specific to digital images such as 1-Seg broadcasting,
and gradation noise that is likely to occur when input images have low gradations (16-bit, 18-bit).
Adaptive Sharpness (ADS) automatically identifies the text and image areas of input images and performs optimal edge
enhancement processing for each area.
For the CPU interface, either I2C or SPI (3-line/4-line) can be selected. For the image I/O interface, the 16/18/24-bit RGB
interface, 16-bit YUV interface or 8-bit YUV interface (ITU-R BT.656) can be selected. Moreover, to support LCDs that
require special horizontal/vertical synchronous signals, the S2D13782 incorporates a programmable timing controller that
generates timing signals for up to 10 lines.
The S2D13782 allows the drive capability of the output terminals for the LCD panel to be selected, the quality of output
signal waveforms can be optimized. It also incorporates a Spread Spectrum Clock Generator (SSCG), which greatly
contributes to reducing the amount of electromagnetic interference (EMI) radiated by the display system.
„ FEATURES
y Image correction function
AME2EX (Auto Movie Enhancement 2 Extended)
OPT: Color correction adapted for input images
(brightness, contrast, color saturation, and gamma curves)
CCE: Color management (color hue and saturation)
SGAM: RGB independent gamma correction
NCX(Noise Canceller and Color Expander)
Reduces block nose, gradation noise and dot noise.
ADS (Adaptive Sharpness):
Edge enhancement (sharpness) adapted for text and
images
PCM (Pseudo Color Mode):
Pseudo gradation processing (24-bit ⇒ 16/18-bit
conversion)
y Image I/O interface
Can be selected from the 16/18/24-bit RGB interface, 16-bit
YUV interface or 8-bit YUV interface (ITU-R BT.656).
y CPU interface
Can be selected from I2C and SPI (3-line/4-line).
y PWM
Input PWM 1ch for photo sensors
Output PWM 1ch for LCD control (input PWM + input image
adaptation. Pulses can be output in manual mode.)
y Other
Unused pins can be used for GPIO.
Built-in SPI-Master (3-line/4-line) for LCD control
y Clock
Max. 40 MHz, Built-in SSCG
y Power supply
Core: 1.80 ± 0.15V, IO: 1.65 to 3.60V
y Package
QFP15-100 (14x14x1.7mm, 100pin, 0.5mm pitch)
„ CONNECTION EXAMPLES
Example 1: LCD display correction
Control signal (I2C or SPI)
CPU Image signal (RGB 24bit)
S2D13782
Timing signal
Image signal (RGB 24bit)
PWM
LED
Driver
LED
power supply
Photo
sensor
PWM
High-quality images can be produced while keeping the
consumption current of the backlight to a minimum.
Color TFT LCD
Example 2: Camera image correction
Image signal (ITU-R BT.656) _S2D13782
Control signal (I2C or SPI)
Image signal (ITU-R BT.656) CPU
VGA Camera
Backlight control and brightness settings