HMT050ATA-2C
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Linli
Date: 2019-01-22
Date:
Date:
Rev. Descriptions
Release Date
0.1
- Preliminary Draft release
2018-12-27
-Update Section 1.3 ， Section 3.1 and Section 5
2019-01-22
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Document Name: HMT050ATA-2C
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TOPWAY
LCD Module User Manual
HMT050ATA-2C
Table of Content
1
Basic Specification ..................................................................................................................................... 3
1.1
General Specification ............................................................................................................................ 3
1.2
Block Diagram ...................................................................................................................................... 3
1.3
Terminal Function ................................................................................................................................. 4
2
Absolute Maximum Ratings....................................................................................................................... 4
3
Electrical Characteristics ........................................................................................................................... 5
3.1
DC Characteristics ................................................................................................................................ 5
4
Function Specifications ............................................................................................................................. 5
4.1
Basic Operation Function Descriptions ................................................................................................ 5
4.2
Quick Start Guide ................................................................................................................................. 6
4.3
Command Descriptions ........................................................................................................................ 6
5
Optical Characteristics ............................................................................................................................... 7
6
Touch panel Design Precautions .............................................................................................................. 8
7
Precautions of using LCD Modules .......................................................................................................... 9
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TOPWAY
LCD Module User Manual
HMT050ATA-2C
1 Basic Specification
TOPWAY HMT050ATA-2C is a Smart TFT Module with 32bit MCU on board. Its graphics engine
provides numbers of outstanding features. It supports TOPWAY TML for preload and pre-design
display interface that simplify the host operation and development time. Suitable for industry control,
instrumentation, medical electronics, power electric equipment applications.
1.1 General Specification
Screen Size(Diagonal) :
5.0”
Resolution :
800(RGB) x 480
Color Depth :
65k color (16bit)
Pixel Configuration :
RGB Stripe
Display Mode :
Transmissive / Normal White
Viewing Direction :
6H (*1) (gray-scale inverse)
12H (*2)
Outline Dimension :
143.5 x 80.9 x 13.7 (max) (mm)
(see attached drawing for details)
Active Area :
108.0 x 64.8 (mm)
Backlight :
LED
Command I/F:
RS-232C
Project Download:
by PC or by U-Drive (with OTG cable)
Operating Temperature :
-20 ~ +70°C
Storage Temperature :
-30 ~ +80°C
Note:
*1. For saturated color display content (eg. pure-red, pure-green, pure-blue, or pure-colors-combinations).
*2. For “color scales” display content.
*3. Color tone may slightly change by Temperature and Driving Condition.
1.2 Block Diagram
Touch Panel
5.0” TFT
800 x 480 pixels
K4
RTS(BUSY)
TX, RX
Display Function Controller
VDD, VSS
K3
ID, D-, D+
Flash
Memory
RAM
VUSB, VSS
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TOPWAY
LCD Module User Manual
HMT050ATA-2C
1.3 Terminal Function
RS232 Interface Terminal (K4)
Pin No.
Pin Name
I/O Descriptions
1,2,3
VDD
P
Power supply (5.0~26.0 V)
4
NC
--
No connection, leave open
5
RX
I
Data Input
(eg. to PC’s RS-232C pin3 <9pin D-connector>)
6
TX
O
Data output
(eg. to PC’s RS-232C pin2 <9pin D-connector>)
7
RTS(BUSY)
O
Request To Send (could function as busy BUSY signal)
(eg. to PC’s RS232C pin8 <9pin D-connector>)
8,9,10
VSS
P
Ground, (0V)
Note.
*1. User data and commands transfer through this terminal
*2. HW hand shake is suggested
USB Interface Terminal (K3)
Pin No.
Pin Name
I/O Descriptions
1
VUSB
P
Power supply(5.0V)
2
D-
I/O
USB DATA negative signal
3
D+
I/O
USB DATA positive signal
4
ID
I
USB_ID, 1:Client, 0:HOST
5
VSS
P
Ground, (0V)
Note.
*1. TML files and image files preload through this terminal
*2. Standard “USB-drive” functions provided
*3. During the files transfer, all others display functions will be suspended
2 Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Power Supply voltage
V dd
-0.3
26.0
V
Operating Temperature
T OP
-20
70
 C
No Condensation
Storage Temperature
T ST
-30
80
 C
No Condensation
Note:
*1. This rating applies to all parts of the module and should not be exceeded.
*2. The operating temperature only guarantees operation of the circuit. The contrast, response speed,
and the other specification related to electro-optical display quality is determined at the room temperature, T OP =25 ℃
*3. Ambient temperature when the backlight is lit (reference value)
*4. Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional
operation of this device at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
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TOPWAY
LCD Module User Manual
HMT050ATA-2C
3 Electrical Characteristics
3.1 DC Characteristics
VSS=0V, VDD=12V, T OP =25  C
Items
Symbol
MIN.
TYP.
MAX.
Unit Applicable Pin/FUNC
Operating Voltage
V dd
5.0
12.0
26.0
V
VDD
RxD Input MARK(1)
V RxDM
-3.0
-
-15.0
V
Rx
RxD Input SPACE(0)
V RXDS
+3.0
-
+15.0
V
Rx
TxD Output MARK(1)
V TXDM
-3.0
-
-15.0
V
Tx
TxD Output SPACE(0)
V TXDS
+3.0
-
+15.0
V
Tx
RTS Output High
V TXDH
-3.0
-
-15.0
V
RTS(BUSY)
RTS Output Low
V TXDL
+3.0
-
+15.0
V
RTS(BUSY)
Operating Current
I DD
-
180
-
mA
VDD (*1)
Operating Current (USB)
I VUSB
-
175
-
mA
VUSB
Battery Supply Current
I BAT
-
0.6
-
uA
Note.
*1. Normal display condition
4 Function Specifications
4.1 Basic Operation Function Descriptions
HMT050ATA-2C
Touch Panel
TML files
Picture files
ICONS files
Custom
Memories
TFT Display
HOST
PC
VP variables
Control and Draw Engine
- TML files, Picture files, ICON files are stored inside FLASH memory area.
They are preloaded to HMT050ATA-2C for stand alone interface use.
- Those files are preloaded via USB interface as an USB drive.
- All the interface flow and the touch response are based on the preloaded TML files
- VP variables memory is inside RAM area,
it provides real time access via UART by the HOST or display onto the TFT by TML file.
- Custom Memories are inside FLASH memory area
It can be accessed via UART interface by the HOST.
- Control and Draw Engine executes HOST commands and response respectively
- It also reports the real time Touch Key number to the HOST
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LCD Module User Manual
HMT050ATA-2C
4.2 Quick Start Guide
1.
Install TOPWAY
Graphics Editor
Import pictures
2. design UI flow
3.
Download to
Smart LCD
4. power on &
display
Connect to
5.
host Show
real time
data
4.3 Command Descriptions
Please refer to “SMART LCD Command Manual”
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TOPWAY
LCD Module User Manual
HMT050ATA-2C
5 Optical Characteristics
Item
Symbol
Condition
MIN.
TYP.
MAX.
UNIT
Note.
θ L
9 o’clock
60
70
-
Viewing angle
θ R
3 o’clock
60
70
-
(CR ≥ 10)
degree
*2
θ T
12 o’clock
40
50
-
θ B
6 o’clock
60
70
-
T f
-
10
20
msec
Response Time
*3
T r
-
15
30
msec
Contrast ratio
CR
400
500
-
-
Normal
W X
0.26
0.31
0.36
-
*1
Color chromaticity
θ=0 o
W Y
0.28
0.33
0.38
-
Luminance
L
-
200
-
cd/m 2
*4
Luminance uniformity
Y U
70
75
-
%
*4
Note:
*1. Definition of Contrast Ratio
The contrast ratio could be calculate by the following expression:
Contrast Ratio (CR) = Luminance with all pixels white / Luminance with all pixels black
*2 Definition of Viewing Angle
*3 Definition of response time
*4 Definition of Luminance Uniformity
Luminance uniformity (Lu)=
Min. Luminance form pt1~pt9 / Max Luminance form Pt1~pt9
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LCD Module User Manual
HMT050ATA-2C
6 Touch panel Design Precautions
1. It should prevent front case touching the touch
panel Active Area (A.A.) to prevent abnormal
touch.
It should left gab (e.g. 0.2~0.3mm) in between.
2. Outer case design should take care about the area outside the A.A.
Those areas contain circuit wires which is having different thickness. Touching those areas could de-
form the ITO film. As a result case the ITO cold be damaged and shorten its lifetime.
It is suggested to protect those areas with gasket (between the front case and the touch panel).
The suggested figures are B≥0.50mm; C≥0.50mm 。
3. The front case side wall should keep space
(e.g. 0.2 ~ 0.3mm) from the touch panel.
4. In general design,
touch panel V.A. should be bigger than the LCD V.A.
and touch panel A.A. should be bigger than the LCD A.A.
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LCD Module User Manual
HMT050ATA-2C
7 Precautions of using LCD Modules
Please refer to "LCD-Module-Design-Handling-Precaution.pdf".
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