LMT050DNCFWU-NAD

LMT050DNCFWU-NAD

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

Lu jianhui

Date: 2018-08-07

Date:

Rev. Descriptions

Release Date

0.1

Preliminary new release

2018-08-07

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 1 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

Table of Content

1. General Specification ............................................................................................................... 3

1.1 Block Diagram .......................................................................................................................... 3

2. Terminal Functions ................................................................................................................... 4

2.1 K1 TFT Driver Terminal ........................................................................................................... 4

3. Absolute Maximum Ratings ..................................................................................................... 4

4. Electrical Characteristics ......................................................................................................... 5

4.1 DC Characteristics ................................................................................................................... 5

4.2 Power ON/OFF Sequence ....................................................................................................... 5

5. AC Characteristics .................................................................................................................... 6

5.1 AC Timing ................................................................................................................................ 6

5.2 Data Input format ..................................................................................................................... 7

5.3 I2C AC Electrical Characteristics .............................................................................................. 8

6. CTP Function Characteristics ................................................................................................. 9

6.1 Initialization .............................................................................................................................. 9

6.2 I2C Slave Interface................................................................................................................... 9

6.3 Register Read .......................................................................................................................... 9

6.4 Register Write ........................................................................................................................ 10

6.5 I2C Electrical Waveform ......................................................................................................... 10

6.6 Report Page Registers ........................................................................................................... 11

7. Optical Characteristics .......................................................................................................... 13

8. Precautions of using LCD Modules ...................................................................................... 15

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 2 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

1. General Specification

Screen Size(Diagonal) :

5.0 inch

Resolution :

800 x 480

Signal Interface :

24bit parallel interface

Color Depth :

16.7M color

Pixel Pitch :

0.135 x 0.135 (mm)

Pixel Configuration :

RGB Stripe

Display Mode :

Transmissive / normal white

Surface Treatment :

HC Treatment

Viewing Direction :

6H (*1) (gray scale inverse)

12H (*2)

Outline Dimension :

121.3 x 76.4 x 8.3 (mm)

(see attached drawing for details)

Active Area :

108 x 64.8 (mm)

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.

1.1 Block Diagram

TPSDA,TPSCL

/TPRST, /TPINT

Capacitive Touch Panel

R0~R7, G0~G7, B0~B7

800 x 480 pixels

DCLK, HS, VS, /STBY

TFT Panel

BLADJ, BLEN

Backlight Circuit

+5V,GND

Power Supply Circuit

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 3 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

2. Terminal Functions

2.1 K1 TFT Driver Terminal

Pin Pin

No. Name

I/O

Descriptions

Power

5V power supply

GND

Power

0V power supply

GND

BLADJ

Input

Backlight brightness PWM signal (active low)

BLEN

Input

Backlight enable signal (active high)

NC(MODE) NC

No Connection

NC(DE)

No Connection

Input

Vertical sync signal

Input

Horizontal sync signal

Input

Blue data line

Input

Green data line

Input

Red data line

GND

Power

Ground, 0V

DCLK

Input

Pixel clock

GND

Power

Ground, 0V

/STBYB

Input

STBYB signal (pull hi for normal operation)

GND

Power

Ground, 0V

/TPRST

Input

Reset signal, active low reset

/TPINT

Output

Interrupt signal, active low interrupt

TPSDA

I/O

I 2 C data (*1)

TPSCL

Input

I 2 C clock (*1)

GND

Power

Ground

Note:

*1. With internal resister(4.7k) pull up.

3. Absolute Maximum Ratings

Items

Symbol

Min.

Max.

Unit

Condition

Power Voltage

V 5V

-0.3

GND = 0V

Operating Temperature

T OP

-20

+70

℃

No Condensation

Storage Temperature

T ST

-30

+80

℃

No Condensation

Cautions:

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.

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 4 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

4. Electrical Characteristics

4.1 DC Characteristics

GND=0V, V 5V =5.0V, T OP =25 ℃

Items

Symbol

MIN.

TYP.

MAX.

Unit Applicable Pin

Power Voltage

V 5V

4.5

5.0

5.5

Operating Current (*1)

I 5V

260

400

Input High Voltage

V IH

3.0

3.3

Input pins

Input Low Voltage

V IL

0.3

Input pins

Output Signal High Voltage

V oH

3.0

3.6

Output Signal Low Voltage

V oL

0.6

Note.

*1. For different LCM, the value may have a bit of difference.

*2. To test the current dissipation, use “all Black Pattern”.

4.2 Power ON/OFF Sequence

Power On/Off Sequence

Power On Sequence

Power OFF Sequence

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 5 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

5. AC Characteristics

5.1 AC Timing

GND=0V, V 5V =5.0V, T OP =25 ℃

Item

Symbol

MIN.

TYP.

MAX.

Unit

Remark

HS setup time

Thst

HS hold time

Thhd

VS setup time

Tvst

VS hold time

Tvhd

Data setup time

Tdsu

Data hole time

Tdhd

DE setup time

Tesu

DCLK cycle time

Tcph

DCLK pulse duty

Tcwh

Input Clock and Data Timing Diagram

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 6 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

5.2 Data Input format

Item

Symbol

MIN.

TYP.

MAX.

Unit

Remark

Horizontal Display Area

thd

800

DCLK

DCLK Frequency

fclk

MHz

One Horizontal Line

889

928

1143

DCLK

HS pulse width

thpw

255

DCLK

HS Blanking

thb

DCLK

HS Front Porch

thfp

255

DCLK

Vertical Display Area

tvd

480

VS period time

513

525

767

VS pulse width

tvpw

255

VS Blanking

tvb

VS Front Porch

tvfp

255

Horizontal input timing diagram

Vertical input timing diagram

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 7 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

5.3 I2C AC Electrical Characteristics

GND=0V, V 5V =5.0V, T OP =25 ℃

Symbol

Parameter

Rating

Min.

Typ.

Max.

Unit

f SCL

SCL clock frequency

400

kHz

t LOW

Low period of the SCL clock

1.3

t HIGH

High period of the SCL clock

0.6

t f

Signal falling time

300

t r

Signal rising time

300

t SU_STA

Set up time for a repeated START

condition

0.6

Hold time (repeated) START condition.

t HD_STA

After this period, the first clock pulse is

0.6

generated

t SU_DAT

Data set up time

100

t HD_DAT

Data hold time

0.9

t SU_STO

Set up time for STOP condition

0.6

t BUF

Bus free time between a STOP and

START condition

1.3

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 8 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

6. CTP Function Characteristics

6.1 Initialization

After hardware reset, touch controller needs some time for initialization. The touch controller can be

accessed via I2C interface after initialization. Initialization time is 50ms.

6.2 I2C Slave Interface

Touch IC equipped with I2C provides two wires, serial data (SDA) and serial clock (SCL), to carry

transferring information at up to 400 kbit/s(Fast mode). I2C address is default to 0x55 (7-bits address).

Touch IC plays the slave role in I2C transfer. Both SDA and SCL are bidirectional lines, connected to IOVDD

via pull-up resistors. All transactions begin with a START (S) and can be terminated by a STOP (P). 7-bits

address follows START to recognize device. Each bye is 8-bits length and followed by an acknowledge bit. A

HIGH to LOW transition on the SDA line while SCL is HIGH defines a START condition. A LOW to HIGH

transition on the SDA line while SCL is HIGH defines a STOP condition. The data on the SDA line must be

stable during the HIGH period of the clock. The HIGH or LOW state of the data line can only change when

the clock signal on the SCL line is LOW.

6.3 Register Read

For reading register value from I2C device, host has to tell I2C device the Start Register Address before

reading corresponding register value.

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 9 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

I2C host interface protocol supports Repeated Register Read. That is, once the Start Register Address has

been set by host, consequent I2C Read(R) transactions will directly read register values starting from the

Start Register Address without setting address first, as shown in Repeated Register Read.

Repeated Register Read

6.4 Register Write

For writing register to I2C device, host has to tell I2C device the Start Register Address in each I2C Register

Write transaction. Register values to the I2C device will be written to the address starting from the Start

I2C

Start Reg.

Value to

I2C

Start Header(W)

Addr.(a)

Reg(a)

Reg(a+1)

…

Reg(a+n)

Stop

6.5 I2C Electrical Waveform

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 10 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

6.6 Report Page Registers

Touch IC provides a register set for host to configure device attributes and retrieve information about

fingers and raw data through device host interface. Host interface registers are listed below.

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 11 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

Note:

Please refer to ST1633i IC datasheet and Sitronix Touch IC Protocol for detail.

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 12 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

7. Optical Characteristics

Item

Symbol

Condition

MIN.

TYP.

MAX.

UNIT

Note.

θ T

Viewing angle

θ B

(CR ≥ 10)

degree

Note 2

θ L

θ R

Contrast ratio

θ=0 o

500

600

Note 1,3

T on

msec

Response Time

25 ℃

Note 1,4

T off

msec

0.260 0.310 0.360

White

0.280 0.330 0.380

0.540 0.590 0.640

Red

Backlight

0.300 0.350 0.400

Chromaticlty

is on

Note 1,5

0.298 0.348 0.398

Green

0.520 0.570 0.620

0.095 0.145 0.195

Blue

0.060 0.110 0.160

Luminance

200

cd/m 2

Note 1,6

NTSC

Note 5

Luminance uniformity

Note 1,7

Test Conditions:

1. IF= 40mA, VF=21.7V, and the ambient temperature is 25. ℃

2. The test systems refer to Note 1 and Note 2.

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 13 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

Note 1:

Note 2:

The data are measured after LEDs are turned on for 5 minutes.

The definition of viewing angle:

LCM displays full white. The brightness is the average value of 9 Refer to the graph below marked by θ and Ф

measured spots. Measurement equipment SR-3A (1°)

Measuring condition:

- Measuring surroundings: Dark room

- Measuring temperature: Ta=25 ℃ .

- Adjust operating voltage to get optimum contrast at

the center of the display.

Note 3:

The definition of contrast ratio (Test LCM using SR-3A (1°)):

Note 4:

Contrast

Luminance When LCD is at “White” state

Definition of Response time. (Test LCD using BM-7A(2°)):

Ratio(CR)

Luminance When LCD is at “Black” state

The output signals of photo detector are measured

(Contrast Ratio is measured in optimum common electrode

when the input signals are changed from

voltage)

“black” to “white”(falling time)

and from “white” to “black”(rising time), respectively.

The response time is defined as

the time interval between the 10% and 90% of amplitudes.Refer to

figure as below.

Note 5:

Note 6:

Definition of Color of CIE1931 Coordinate and NTSC Ratio.

The luminance uniformity is calculated by using following formula.

△ Bp = Bp (Min.) / Bp (Max.)×100 (%)

Color gamut:

Bp (Max.) = Maximum brightness in 9 measured spots

Area of RGB triangle

X100%

Bp (Min.) = Minimum brightness in 9 measured spots .

Area of NTSC triangle

Note 7:

Measured the luminance of white state at center point

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 14 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

8. Precautions of using LCD Modules

Please refer to "LCD-Module-Design-Handling-Precaution.pdf".

附录一：

CTP Application Precautions

1. CTP Mounting Precaution

1.1 Bezel Mounting (Figure 1)

- The bezel window should be bigger than the CTP active area. It should be ≥ 0.5mm each side.

- Gasket should be installed between the bezel and the CTP surface.

The final gap should be about 0.5~1.0mm.

- It is recommended to provide an additional support bracket for backside support when

necessary (e.g. slim type TFT module without mounding structure). They should only provide

appropriate support and keep the module in place.

- The mounting structure should be strong enough to prevent external uneven force or twist act

onto the module.

Figure 1

1.2 Surface Mounting (Figure 2)

- As the CTP assembling on the countersink area with double side adhesive.

The countersink area should be flat and clean to ensure the double side adhesive installation

result.

- The Bezel is recommend to keep a gap ( ≥ 0.3mm each side) around the cover lens for

tolerance.

- It is recommended to provide an additional support bracket with gasket for backside support

when necessary (e.g. TFT module without mounding structure). They should only provide

appropriate support and keep the module in place.

- The mounting structure should be strong enough to prevent external uneven force or twist act

onto the module.

Figure 2

1.3 Additional Cover Lens Mounting (Figure 3)

- For the case of additional cover Lens mounting, it is necessary to recheck with the CTP

specification about the material and thickness to ensure the functionality.

- It should keep a 0.2~0.3mm gap between the cover lens and the CTP surface..

- The cover lens window should be bigger than the active area of the CTP.

It should be ≥ 0.5mm each side.

- It is recommended to provide an additional support bracket for backside support when

necessary (e.g. slim type TFT module without mounding structure). They should only provide

appropriate support and keep the module in place.

- The mounting structure should be strong enough to prevent external uneven force or twist act

onto the module.

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 15 of 16

TOPWAY

LCD Module User Manual

LMT050DNCFWU-NAD

Figure 3

2. Handling Precautions

2.1 The product made of glass. Do not subject it to a mechanical shock by dropping it from a high

place, etc.

2.2 Do not apply excessive or uneven force to the product since this may damage to the

performance.

2.3 If the display surface is contaminated, breathe on the surface and gently wipe it with a soft dry

cloth. If still not completely clear, moisten cloth with Isopropyl alcohol or Ethyl alcohol solvents.

Solvents other than those mentioned above may damage the product. Especially, do not use

Water, Ketone, Aromatic solvents.

2.4 Do not attempt to disassemble the CTP Module.

2.5 If the logic circuit power is off, do not apply the input signals.

2.6 To prevent destruction of the elements by static electricity, be careful to maintain an optimum

work environment.

a. Be sure to ground the body when handling the CTP Modules.

b. Tools required for assembly, such as soldering irons, must be properly ground.

c. To reduce the amount of static electricity generated, do not conduct assembly and other work

under dry conditions.

d. The CTP Module is coated with a film to protect the display surface. Be care when peeling off

this protective film since static electricity may be generated.

3. Storage and Transportation Precautions

3.1 When storing the CTP modules, avoid exposure to direct sunlight or to the light of fluorescent

lamps.

3.2 The CTP modules should be stored the required temperature range. If the CTP modules will be

stored for a long time, the recommend condition is the temperature of 0~40 ℃ and relative

humidity of ≤ 80%.

3.3 The LCD modules should be stored in the room without acid, alkali and harmful gas.

3.4 The CTP modules should be no falling and violent shocking during transportation, and also

should avoid excessive press, water, damp and sunshine.

URL: www.topwaydisplay.com

Document Name: LMT050DNCFWU-NAD-Manual-Rev0.1

Page: 16 of 16