AXIOMTEK DK1211C User manual

DK1211C User Guide
1
DK1211C
12.1" Industrial Display Module Kit
User Guide

DK1211C User Guide
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Disclaimers
This manual has been carefully checked and believed to contain accurate information.
Axiomtek Co., Ltd. assumes no responsibility for any infringements of patents or any third
party’s rights, and any liability arising from such use.
Axiomtek does not warrant or assume any legal liability or responsibility for the accuracy,
completeness, or usefulness of any information in this document. Axiomtek does not make
any commitment to update the information in this manual.
Axiomtek reserves the right to change or revise this document and/or product at any time
without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Axiomtek Co., Ltd.
Copyright 2017 Axiomtek Co., Ltd.
All Rights Reserved
September 2017, Version A1
Printed in Taiwan

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Safety Precautions
Before getting started, read the following important cautions.
1. Be sure to ground yourself to prevent static charge when installing the internal
components. Use a grounding wrist strap and place all electronic components in any
static-shielded devices. Most electronic components are sensitive to static electrical
charge.
2. Disconnect the power cords before making any installation. Be sure both the system
and the external devices are turned OFF. Sudden surge of power could ruin sensitive
components.
Trademarks Acknowledgments
Axiomtek is a trademark of Axiomtek Co., Ltd.
Windows®is a trademark of Microsoft Corporation.
IBM, PC/AT, PS/2, VGA are trademarks of International Business Machines Corporation.
Intel®and Pentium®are trademarks of Intel Corporation.
AMI is trademark of American Megatrend Inc.
Other brand names and trademarks are the properties and registered brands of their
respective owners.

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Table of Contents
Disclaimers..........................................................................................................2
Safety Precautions...............................................................................................3
Chapter 1 Introduction .....................................................................5
1.1 General Description .....................................................................................5
1.2 Display Characteristics .................................................................................6
1.3 Absolute Maximum Ratings .........................................................................6
1.4 Block Diagram..............................................................................................8
1.5 Mechanical Dimensions ...............................................................................9
Chapter 2 Electrical Characteristics .................................................12
2.1 TFT LCD Module .........................................................................................12
2.2 LED CONVERTER.........................................................................................14
2.3 The Input Data Format...............................................................................15
2.4 Optical Characteristics................................................................................16
2.5 Interface Timing.........................................................................................19
2.6 Power On/Off Sequence.............................................................................20
Chapter 3 Input Terminal Pin Assignments ......................................21
3.1 TFT LCD Module Interface ..........................................................................21
3.2 Backlight Unit.............................................................................................23
Chapter 4 Touch Screen ..................................................................25
4.1 Touch Characteristics..................................................................................25
4.2 Absolute Maximum Ratings .......................................................................25
4.3 Electrical Characteristics.............................................................................26
4.4 Touch Pin Assignment ................................................................................27
Appendix A Hanling Precaution .........................................................29

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Chapter 1
Introduction
1.1 General Description
The DK1211C is a 12.1” TFT-LCD module with a white LED Backlight Unit and 1ch-LVDS
interface. This module supports 800 x 600 SVGA MVA mode and displays 262K/ 16.2M colors
and adopt projected capacitive touch. The converter for the LED Backlight Unit is built in.

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1.2 Display Characteristics
Item
Specifications
Unit
Active Area
246.00 (W) x 184.50 (H)
mm
Outline Dimension
260.50(W) × 204.00(H) × 8.40(D)
mm
Pixels H x V
800 x 600
-
Pixel Pitch
0.3075× 0.3075
mm
Display Colors
262K / 16.2M
color
White Luminance
450 (TYP)
cd/m2
Contrast Ratio
1500: 1 (TYP)
-
Display Mode
Normally black
-
Surface Treatment
Anti-glare, Hardness 3H
-
Power Consumption
7.9 (TYP)
W
1.3 Absolute Maximum Ratings
1.3.1 Absolute Environmental Ratings
Item
Symbol
Min.
Max.
Unit
Note
Operating Temperature
TOP
-30
85
°C
Storage Temperature
TST
-30
85
°C
Note (1): Temperature and relative humidity range is shown in the figure below.
Note (2): 90 %RH Max. (Ta ≦40 ºC).
Note (3): Wet-bulb temperature should be 39 ºC Max. (Ta > 40 ºC).

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Note (4): No condensation.
1.3.2 Electrical Absolute Ratings
1.3.2.1 TFT LCD MODULE
Item
Symbol
Min.
Max.
Unit
Remark
Power Supply Voltage
Vcc
-0.3
7
V
(1)
1.3.2.2 LED CONVERTER
Item
Symbol
Min.
Max.
Unit
Remark
Converter Voltage
Vi
-0.3
18
V
(1)(2)
Enable Voltage
EN
-
5.5
V
Backlight Adjust
ADJ
-
5.5
V
Note (1): Permanent damage to the device may occur if maximum values are exceeded.
Function operation should be restricted to the conditions described under
Normal Operating Conditions.
Note (2): Specified values are for lamp (Refer to 3.2 for further information).

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1.4 Block Diagram

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1.5 Mechanical Dimensions
1.5.1 Outline Drawing (Front Side)

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1.5.2 Outline Drawing (Back Side)

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Chapter 2
Electrical Characteristics
2.1 TFT LCD Module
Ta = 25 ± 2 ºC
Item
Symbol
Min.
Typ.
Max.
Unit
Condition
Power Supply Voltage
VCC
3.0
3.3
3.6
V
at VCC=3.3V
4.75
5.0
5.25
V
at VCC=5.0V
Rush Current
IRUSH
-
-
1.5
A
(2), at VCC=5.0V
Power Supply Current
White
-
450
540
mA
(3) a, at VCC=3.3V,
60Hz
-
310
370
mA
(3) a, at VCC=5.0V,
60Hz
Black
-
420
480
mA
(3) b, at VCC=3.3V,
60Hz
-
280
335
mA
(3) b, at VCC=5.0V,
60Hz
Power Consumption
PL
-
1.49
1.78
W
VCC=3.3V, 60Hz,
White Pattern
LVDS differential input
voltage
|VID|
100
-
600
mV
LVDS common input
voltage
VICM
0.7
-
1.6
V

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Note (1) The module is recommended to operate within specification ranges listed above for
normal function.
Note (2) Measurement Conditions:
Note (3) The specified power supply current is under the conditions at Ta = 25 ± 2 ºC, fv = 60
Hz, whereas a power dissipation check pattern below is displayed.

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2.2 LED CONVERTER
Ta = 25 ± 2 ºC
Item
Symbol
Min.
Typ.
Max.
Unit
Condition
Converter Power Supply
Voltage
Vi
10.8
12.0
13.2
V
(Duty 100%)
Converter Power Supply
Current
Ii
-
0.53
-
A
@ Vi = 12V
(Duty 100%)
Converter Power
Consumption
Pi
-
6.4
-
W
@ Vi = 12V
(Duty 100%)
EN Control Level
Backlig
ht on
2.0
3.3
5.0
V
Backlig
ht off
0
-
0.8
V
PWM Control Level
PWM
High
Level
2.0
3.3
5.0
V
PWM
Low
Level
0
-
0.15
V
PWM Control Duty Ratio
1
-
100
%
@200Hz
PWM Control Frequency
fPWM
190
200
20K
Hz
LED Life Time
LL
50,00
0
-
-
Hrs
(2)
Note (1) LED current is measured by utilizing a high frequency current meter as shown
below:
Note (2) The lifetime of LED is defined as the time when it continues to operate under the
conditions at
Ta = 25 ±2 ℃and ILED = 55mADC (LED forward current) until the brightness becomes ≦
50% of its
original value. Operating LED under high temperature environment will reduce life time and
lead to color shift.

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2.3 The Input Data Format

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2.4 Optical Characteristics
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
Note
Color
Chromaticity
Red
Rx
θx=0°, θy=0°
CS-2000
Typ -
0.05
0.600
Typ +
0.05
-
(1)(5)
Ry
0.353
Green
Gx
0.348
Gy
0.568
Blue
Bx
0.150
By
0.097
White
Wx
0.313
Wy
0.329
Center Luminance of White
Lc
400
450
-
cd/m2
(4)(5)
Contrast Ratio
CR
1200
1500
-
-
(2)(5)
Response Time
TR
θx=0°, θy =0°
-
13
18
ms
(3)
TF
-
12
17
White Variation
δW
θx=0°, θy =0°
-
1.25
1.4
-
(5)(6)
Viewing
Angle
Horizontal
θx+
CR≧10
80
89
-
Deg.
(1)(5)
θx-
80
89
-
Vertical
θy+
80
89
-
θy-
80
89
-

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Note (1) Definition of viewing angle:
Note (2) Definition of Contrast Ratio, CR:
The following expression can calculate the contrast ratio.
Contrast Ratio, CR = L63 (255) / L0
L63: Luminance of gray level 63 (255)
L 0: Luminance of gray level 0
CR = CR (5)
CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note (6).
Note (3) Definition of Response Time (TR, TF) and measurement method:

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Note (4) Definition of Luminance of White, LC:
Measure the luminance of gray level 63 (255) at center point
LC = L (5)
L (x) is corresponding to the luminance of the point X at Figure in Note (6).
Note (5) Measurement Setup:
The LCD module should be stabilized at given temperature for 20 minutes to avoid
abrupt temperature change during measuring. To stabilize the luminance, the
measurement should be executed after lighting Backlight for 20 minutes in a
windless room.
Note (6) Definition of White Variation (δW):

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2.5 Interface Timing
Item
Signal
Symbol
Min.
Typ.
Max.
Unit
Note
Total
Vertical
Active
Display Term
Tv
610
628
800
Th
Tv=Tvd+Tvb
Display
Tvd
-
600
-
Blank
Tvb
Tv-Tvd
28
Tv-Tvd
Total
Horizontal
Active
Display Term
Th
960
1056
1150
Tc
Th=Thd+Th
b
Display
Thd
-
800
-
Blank
Thb
Th-Thd
256
Th-Thd
Frequency
DCLK
Fc
34
40
48.3
MHz
Note (1): Because this module is operated by DE only mode, Hsync and Vsync input signals
should be set to low logic level or ground. Otherwise, this module would operate abnormally.
Note (2): Frame rate is 60Hz

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2.6 Power On/Off Sequence
To prevent a latch-up or DC operation of LCD module, the power on/off sequence should
follow the conditions shown in the following diagram.
Note (1) Please avoid floating state of interface signal at invalid period.
Note (2) When the interface signal is invalid, be sure to pull down the power supply of LCD
VCC to 0 V.
Note (3) The Backlight converter power must be turned on after the power supply for the
logic and the interface signal is valid. The Backlight converter power must be
turned off before the power supply for the logic and the interface signal is invalid.
Parameter
Value
Unit
Min.
Typ.
Max.
T1
0.5
-
10
[ms]
T2
0
-
50
[ms]
T3
0
-
50
[ms]
T4
500
-
-
[ms]
T5
200
-
-
[ms]
T6
200
-
-
[ms]
T7
5
-
300
[ms]
T8
10
-
-
[ms]
T9
10
-
-
[ms]