31.2” EPD Display with LVDS system Board

Table of Contents

1 Introduction ............................................................................... 1

(1) PACKAGE CONTENTS ............................................................................. 1

(2) Block Diagram of LVDS Driving Board ................................................... 3

(3) LVDS Specification ................................................................................. 5

(4) LVDS Timing Specification ..................................................................... 6

2 Hardware Guide ......................................................................... 7

(1) Hardware Requirements ....................................................................... 7

(2) Demo Kit Hardware Description ........................................................... 8

3 31.2” EPD LVDS driving board operation manual ...................... 11

(1) How to setup the system (with A/D Board) ........................................ 11

(2) How to operate the system ................................................................ 14

4 Contact Information ................................................................. 15

5 Legal Information ..................................................................... 15

1

1 Introduction

ED312TT2 is a reflective electrophoretic E Ink technology display module based on

active matrix TFT substrate. It has 31.2" active area with 2560 x 1440 pixels, the

display is capable to display images at 16 gray levels (4 bits) depending on the display

controller and the associated waveform file it used.

LVDS Driving Board is an E Ink display controller for E Ink panel. The data interface

(LVDS) is comparable with normal LCD module. It could be developed a new

application with same system structure like LCD. LVDS Driving Board only support

1280x720@60Hz resolution with 2 channels LVDS input. LVDS Driving Board will

re-process the image to fit the resolution of 31.2’’ E Ink panel.

31.2" display panel is suitable for various applications, e.g. bus stop, museum etc…

(1) PACKAGE CONTENTS

This demo kit contains the following:

LVDS TCON board

LVDS cable

AD board ( HDMI input/LVDS output)

FFC cable*4

Adapter AC100V-240V to DC12V 5A

Power cable

2

Demo Kit Contents

3

(2) Block Diagram of LVDS Driving Board

There are 3 paths for 12V power input for the system board and E Ink Display.

1. 12V power from power adaptor

2. 12V power from another power circuit

3. 12V power from LVDS Interface (from A/D board or SoC system by LVDS Cable)

Only one power path could be used for power supplying.

LVDS Driving Board

4

LVDS Driving Board Specification

Item Specification

E Ink Display Panel 31.2’’ EPD display

E Ink Display Resolution 2560(H) × 1440(V)

TCON Solution Xilinx FPGA TCON

(Xilinx XC6SLX16-2CSG324C)

TCON Interface Dual-channel LVDS

LVDS Resolution 1280(H) × 720(V) @60Hz

LVDS Data Format 8bits NS format

TCON Board Dimension

(W × H × D, unit: mm)

280(W) × 160(H) × 12(D)

Power Supply 12V/2A (2A min.)

External Controller

(no including in this kit)

Multi-Function Display Controller

( A/D Board/Scalar IC or others SOC which support LVDS

interface )

Demo Kit Hardware Description

(with A/D Board)

31.2 EPD display (ED312TT2) LVDS demo kit only includes

an LVDS Driving Board and E Ink panel. The A/D Board and

LVDS Driving Board are connected via a LVDS Cable. Use

the HDMI port on the A/D Board as the image source of

the E Ink panel.

LVDS Connector Specification

Item Specification

Receptacle (LVDS Driving Board) FI-RE51S-HF

Cable Plug (LVDS Cable) FI-RE51HL

AD Board Specification (only for reference)

Item Specification

AD Board F02482

Support Resolution 1920x1080@60Hz (max.)

Input interface HDMI, DVI, VGA

Output Interface Dual-channel LVDS

LVDS Data Format 8bits NS/JEIDA format

Dimension

(W × H × D, unit: mm)

165.5 (L) *100 (W)* 12 (H)

Note: All hardware specifications are for the demonstration of this evaluation kit only.

5

(3) LVDS Specification

LVDS Format => 8bits NS

Pixel Format

Timing Chart

6

(4) LVDS Timing Specification

Timing Table (DE only Mode)

Vertical Frequency Range (60Hz)

Signal Item Min. Typ. Max Unit

Vertical Section Period 725 741 761 Tclk

Active 720 Tclk

Blanking 5 21 41 Tclk

Horizontal Section Period 705 720 940 Tclk

Active 640 Tclk

Blanking 65 80 300 Tclk

Clock Frequency 20 32 40 MHz

Vertical Frequency Frequency 24 60 60 Hz

Horizontal Frequency Frequency - 44.44 - KHz

7

2 Hardware Guide

This section describes the hardware setup of the 31.2” EPD display demo kit.

(1) Hardware Requirements

This demo kit should needs some items as following:

1. LVDS Driving Board

2. 31.2” E Ink display (EPD).

3. FFC cable

4. A/D Board or SOC platform with LVDS output interface

5. 12V power adaptor

ED312TT2 EPD

EVK – LVDS System Board A/D Board with LVDS cable (No included in demo

kit)

8

12V power adaptor FFC

(2) Demo Kit Hardware Description

31.2 EPD display (ED312TT2) demo kit includes an FPGA driving board and an E Ink

display adapter board. The FPGA driving board and E Ink display adapter board are

connected via a 50 pin FFC. The LVDS interface on the EVK is for image data

receiving. The source of LVDS signal would be from A/D Board or SOC platform which

support LVDS signal output. The FPGA driving board and A/D Board or SOC platform

are connected via a LVDS cable. FPGA driving board receives the image data from

LVDS interface and display on E Ink panel. There is a power circuit on LVDS Driving

Board. The 12V power could be input from LVDS Driving Board or from LVDS cable.

Note:Only allow one power path input for system (12V power from LVDS Driving Board or

from LVDS cable), otherwise it will cause great damage for the system.

Demo Kit

9

LVDS connector pin assignment

PIN NUMBER SIGNAL PIN NUMBER SIGNAL

1 NC 26 NC

2 NC 27 NC

3 NC 28 CH1_0-

4 NC 29 CH1_0+

5 NC 30 CH1_1-

6 NC 31 CH1_1+

7 NC 32 CH1_2-

8 NC 33 CH1_2+

9 NC 34 GND

10 NC 35 CH1_CLK-

11 GND 36 CH1_CLK+

12 CH2_0- 37 GND

13 CH2_0+ 38 CH1_3-

14 CH2_1- 39 CH1_3+

15 CH2_1+ 40 NC

16 CH2_2- 41 NC

17 CH2_2+ 42 NC

18 GND 43 NC

19 CH2_CLK- 44 GND

20 CH2_CLK+ 45 GND

21 GND 46 GND

22 CH2_3- 47 NC

23 CH2_3+ 48 LVDS_VIN

24 NC 49 LVDS_VIN

25 NC 50 LVDS_VIN

51 LVDS_VIN

10

FFC connector pin assignment

PIN NUMBER SIGNAL PIN NUMBER SIGNAL

1 VEE 26 D11

2 NC 27 D12

3 VGG 28 D13

4 Mode2 29 D14

5 VDD 30 D15

6 Mode1 31 STH

7 CKV 32 LEH

8 STV 33 OEH

9 VSS 34 ISEL

10 VCOM_TFT 35 NC

11 VDD 36 VPOS

12 VSS 37 NC

13 CKH 38 VENG

14 D0 39 VCOM_FPL

15 D1 40 Border

16 D2 41 STV2

17 D3 42 NC

18 D4 43 NC

19 D5 44 NC

20 D6 45 NC

21 D7 46 NC

22 VSS 47 NC

23 D8 48 NC

24 D9 49 NC

25 D10 50 STL2

11

3 31.2” EPD LVDS driving board operation manual

(1) How to setup the system (with A/D Board)

Connect to the panel

31.2” EPD connector

Connect to the A/D Board or SOC platform

A/D Board

LVDS Cable

LVDS Connector

12

LVDS connector

LVDS Driving Board

VDS Connector

System Connection

Connector

13

Connect to the Video port (HDMI) for A/D Board

A/D Board

Connect the Power adapter (12V)

Note: Only allow one power path input for system (12V power from LVDS Driving Board or

from LVDS cable), otherwise it will cause great damage for the system.

Connector

HDMI

Connector

12V power

Light On when

Power on

14

(2) How to operate the system

LVDS Driving Board only support standard 2 channels LVDS signal input. There is no

others control pin for LVDS Driving Board. LVDS Driving Board supports pattern mode

for E Ink display. Pattern mode is 16 Gray levels with refresh update and image

algorithm. Display mode will be auto enabled by auto mode selection function. This

function is based on image content to select the display mode. If image content is

static now and next image is changed, LVDS Driving Board will use pattern mode to

make a full refresh update to show the new pattern on E Ink display.

Note:

1. Lower LVDS frame rate

Standard video frame rate (60Hz) from LVDS signal is too fast for EPD. It gets higher

power consumption for system. If the speed of LVDS signal could be slowed down, it

will get better power consumption.

2. Source video signal should be pure clear video signal for LVDS TCON

Auto display mode selection is based on pure digital image signal. Unstable source

video signal will cause auto mode selection fail. Analog video signal (VGA) is not

allowed. High compression rate steaming video is not allowed, too. Only allow picture

display.

3. AD Board should disable the LCD dithering function or any image processing

function which will cause the static image data different in every frame.

4. Don’t support handwriting mode

15

4 Contact Information

For more information, please visit

http://www.eink.com

For sales office addresses, please visit

http://www.eink.com/contact_sales.html

5 Legal Information

Definitions

The document is a draft version only. The content is still under internal review and

subject to formal approval which may result in modifications or additions. E Ink does

not give any representations or warranties as to the accuracy or completeness of

information included herein and shall have no liability for the consequences of use of

such information.

Right to make changes

E Ink reserves the right to make changes to information published in this document,

including without limitation specifications and product descriptions, at any time and

without notice.

Suitability for use

Products described in this document are intended for development purposes only and

comes without any warranty. E Ink accepts no liability for inclusion and/or use of E

Ink products in commercial products or applications and therefore such inclusion

and/or use is at the customer’s own risk. In no event shall E Ink be liable for any direct,

indirect, incidental, special, exemplary, or consequential damages (including, but not

limited to, procurement of substitute goods or services; loss of use, data, or profits; or

business interruption) however caused and on any theory of liability, arising in any

way out of the use of the software.

Applications

Applications that are described herein for any of these products are for illustrative

purposes only. E Ink makes no representation or warranty that such applications will

16

be suitable for the specified use without further testing or modification.

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that is open for acceptance or the grant, conveyance or implication of any license

under any copyrights, patents or other industrial or intellectual property rights.

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Revision History

Version Date Page Description Author

0.1 2017/08/03 Initial ShuCheng Liu

0.2 2017/08/25 Spec. modification ShuCheng Liu

0.3 2018/03/01 6,9,14 Spec. modification ShuCheng Liu