FHD TFT LCD Drive

　　and In-Cell Touch Controller

　　1. General Description

　　1.1. Purpose of this Document

　　The purpose of this document is to provide the reference specification for Touch and Display Integration IC (eKTD6730). Engineers can refer this document to do IC development and application design (Circuit, quality ...etc.) for any potential customers.

　　1.2. General Description

　　The eKTD6730 IC brings new generation architecture (TDDI) to handheld device. The eKTD6730 provides a one chip solution that integrates display driver, In-cell touch controller, and active pen controller.The eKTD6730 is 3 in 1 chip. It supports FHD (1080RGB X 1920 dots) resolution panel, Multi-finger capacitive touch screen controller, Industry standard interfaces (MIPI interface) and low temperature poly-silicon (LTPS) drive etc...

　　The eKTD6730 IC enables subsystems such as touch, display, and backlight to interact autonomously without intervention of the system or application processor and supports touch screen of 648 channels. The eKTD6730 also has flexibility and selective functionality to fit different mobile device, such as CABC (Content Adaptive Backlight Control), CM (Color Management), Gamma adjustment… It also provides various functions/modes to reduce the power consumption of a LCM module.

　　2. Feature

　　TDDI(Touch with Display Driver) controller single-chip solution

　　2.1. Touch Controller Function

　　16-bit embedded single-cycle instruction-set DSP

　　Built-in hardware acceleration module

　　Program storage size: 32Kx16bits via ROM + 32K X16bits SRAM

　　Data storage size: 16Kx16 bits SRAM

　　Self-capacitance detection technology

　　648 channels RX for in-cell touch panel

　　10-point Real Touch

　　Anti-floating

　　Anti-power interference

　　Anti-stress from external

　　Anti-RF interference

　　Point reporting rate up to 120Hz

　　6 virtual buttons

　　Four ports for LED respiration lighting driver

　　I2C data communication interface

　　Low-Power Wake-Up Gesture

　　External Flash

　　Support active pen and reach high performance and good user experience

　　Support high report rate(pen)

　　Hover func

　　Pressure func

　　2.2. Display Module

　　Resolution: 1080(RGB) x (480+8N) dots (0<=N<=255)

　　Full Color Mode(RGB888): 16.7M colors

　　Reduce Color Mode(RGB666): 262K colors

　　Reduce Color Mode(RGB565): 65K colors

　　Output 256 gray with true 8-bit D/A converter

　　48 GOUT Signal (CGOUT1 – CGOUT24 on each side of the chip)

　　Display driving mode: Column inversion

　　Support zigzag panel

　　Support SRC MUX 1 to 3 and 1 to 6.

　　Interface

　　MIPI DSI display serial interface 1/4 lanes (DSI v1.01.00, D-PHY v1.00.00 and DCS v1.01)

　　I2C Master /Slave Interface

　　Support a serial flash memory interface for the external flash memory for initialization.

　　Also Support without external flash memory and initialization by Host.

　　Power

　　3 power input: VDDI: 1.65~1.95V ; VSP: 4.5~6.5V ; VSN: -4.5 ~ -6.5V

　　Gate driver voltage range:

　　− Positive: 7V ~16.4V

　　− Negative: -6V ~ -16.4V

　　Gamma/ Source output voltage range:

　　− Positive: VSPR: 2.6 ~ 5.75V ; VGSP: 0.~0.75V

　　− Negative: VSNR: -2.6 ~ -5.75V ; VGSN: 0~-0.75V

　　Common electrode output range for VCOMDC: 0 ~ -2.9V

　　Power saving

　　Smart Source Pre-Charge

　　IDLE 8-color mode

　　On-Chip function

　　RGB Digital Gamma

　　Color Enhancement /Sharpness/ Hue/ Sunlight readability(SLR)

　　Dynamic backlight control function (CABC 12bits)

　　VGH/VGL temperature compensation

　　BIST function (R\G\B 0~255 gray level, verification pattern : cross talk, color bar, flicker…)

　　Built-in internal oscillator and hardware reset

　　Built–in OTP (5 Times) to store VCOM calibration and ID1~ID3 and 3Gamma