720HD TFT LCD Driver

　　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 (eKT6600).Engineers can refer this document to do IC development and application design (Circuit, quality ...etc.) for any potential customers.

　　1.2. General Description

　　The eKTD6600 IC brings new generation architecture (TDDI) to handheld device. The eKTD6600 provides a one chipsolution that integrates display driver and In-cell touch controller. It supports HD (720 X 1440 dots) resolution panel, Multi-finger capacitive touch screen controller, Industry standard interfaces (MIPI interface) and a-SI display drive etc...The eKTD6600 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 576 channels. The eKTD6600 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: 24K X16bits SRAM

　　Data storage size: 16Kx16 bits SRAM

　　Self-capacitance detection technology

　　576 channels RX for maximum 6.47” in-cell touch panel

　　Supports up to 100pF capacitive sensing per channel

　　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

　　2.2. Display Module

　　Resolution: 720(RGB) x (480+8N) dots (0<=N<=100)

　　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

　　44 Gate Signal out (GOUT_R 1~22, GOUT_L 1~22)

　　Display driving mode: 1dot /2dot /Column

　　Interface

　　MIPI DSI display serial interface 4 lanes (DSI:1.01.00, DCS:1.01.00)

　　I2C Master /Slave Interface

　　Power

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

　　Gate driver voltage range:

　　− Positive: 10V ~22.6V

　　− Negative: -6V ~ -18.6V

　　Gamma/ Source output voltage range:

　　− Positive: VSPR: 2.6 ~ 5.75V ; VGSP:0V, 0.1V~0.7V

　　− Negative: VSNR: -2.6 ~ -5.75V ; VGSN:0V, -0.1~-0.7V

　　Common electrode output range for VCOMDC: 0, -0.3 ~ -3.0V

　　Power saving

　　Smart Source Pre-Charge

　　On-Chip function(need to check to digital RD)

　　RGB Digital Gamma(P/N,45 adjustment points)

　　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,

　　Built–in OTP (3 Times) to store analog gamma

　　Built–in OTP (3 Times) to store panel timing, analog power setting, and etc.

　　Built-in Charge Pump circuits