Shenzhen Yetai Optoelectronics Technology Co.,Ltd.
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Shenzhen Yetai Optoelectronics Technology Co.,Ltd.
1.54 Inch IPS TFT LCD Display
  • 1.54 Inch IPS TFT LCD Display
  • 1.54 Inch IPS TFT LCD Display
  • 1.54 Inch IPS TFT LCD Display
  • 1.54 Inch IPS TFT LCD Display
  • 1.54 Inch IPS TFT LCD Display
1.54 Inch IPS TFT LCD Display
1.54 Inch IPS TFT LCD Display
1.54 Inch IPS TFT LCD Display
1.54 Inch IPS TFT LCD Display
1.54 Inch IPS TFT LCD Display

1.54 Inch IPS TFT LCD Display

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Product Description
Product Description



A liquid crystal display or LCD draws its definition from its name itself. It is a combination of two states of matter, the solid and the liquid. LCD uses a liquid crystal to produce a visible image. Liquid crystal displays are super-thin technology display screens that are generally used in laptop computer screens, TVs, cell phones, and portable video 


Model: 154018B0

Resolution: 320*320

Viewing angle: IPS

Color: 262K

Features: high brightness, full viewing angle, ultra-thin design with integrated backlight, low power

consumption, square structure, etc.

Application areas: smart wearable, medical equipment, digital electronics, smart home, white goods, 

etc.

Img 20190518 171513Img 20190518 171450Img 20190518 171431Img 20190518 171551Img 20190518 171605


 Introduction

1.1 Scope of application

This specification applies to the LCD module that is supplied by

Tian Xian Wei Technology CO., LTD.

LCD specification: Dots 320xRGBx320

As to basic specification of the driver IC, refer to the IC (Sitronix:ST7796S)

specification and data book.

All material & processing of the LCD module should be Lead Free.

1.2 TFT features:

Structure:  TFT PANNEL+IC +FPC+BL;

IPS Type LCD

320 dot-segment and 320 dot-common outputs;

262K Color can be selected by software;

White LED back light;

MIPI interface

 

1.3 Applications:

2. LCM General specification

 

ITEM

Sandard value

Unit

LCD Type

Normally black

--

Drive element

TFT active matrix

--

Number of pixels

320*3RGB(H)X320(V) 

Dots

Pixel arrangement

RGB stripe

--

Pixel Pitch (W*H)

0.0867(H) x0.0867 (V)

mm

Active area

27.744(H) × 27.744(V)

mm

Module Size(W*H*T)

31.52 x 33.72 x 1.6

-

Viewing direction

ALL O’CLOCK

 

TFT Driver IC

ST7796S

-

TFT interface

MIPI  Interface

-

Approx. Weight

TBD

g

Touch structure

 

 

Touch Driver IC

 

-

Touch Interface

 

 

 

 



 

3.Absolute Maximum Rating

                                                             

Characteristics

Symbol

Min.

Max.

Unit

LCM Operating Temperature

TOPR

-20

+70

°C

LCM Storage Temperature

TSTG

-30

+80

°C

TP Operating Temperature & Humidity(20% ~ 90%RH)

TOPR

 

 

°C

TP SStorage Temperature & Humidity(20% ~ 90%RH)

TSTG

 

 

°C

Humidity

RH

-

90

%

 

4.Electrical Characteristics

4.1 TFT DC Characteristics

                                                                              

Characteristics

Symbol

Min.

Typ.

Max.

Unit

Supply Voltage for I/O

VDDIO

1.65

1.8

3.3

V

Supply Voltage for(DC/DC)

VDD

2.5

2.8

3.6

V

Supply Voltage for(DC/DC)

 

 

 

 

V

Supply Voltage for(DC/DC) 

 

 

 

 

V

Current Consumption

IDD

-

TBD

-

mA

IDD-SLEEP

 

TBD

 

uA

 

4.2 Back-Light Unit Characeristics

The back-light system is an edge-lighting type with 3 white LEDs. The characteristics of the back-light are shown in the following tables.

                                                                    

Characteristics

Symbol

Min.

Type

Max.

Unit

Notes

Forward Voltage

VF

2.9

3.2

3.5

V

-

Forward current

IF

--

60

-

mA

-

Luminance(With LCD)

Lv

 

700

--

cd/m2

-

LED life time

N/A

----

50,000

--

Hr

Note 1

Note:

(1) The “LED life time” is defined as the module brightness decrease to 50% of original brightness at IL=20mA/LED. The LED life time could be decreased if operating IL is larger than 25mA/LED.

Backlight circuit diagram shown in below:   

5. Module Function Description

Pin No.

Symbol

Functional

Notes

1

TCP

Positive polarity of low voltage differential clock signal

 

2

TCN

Negative polarity of low voltage differential clock signal

 

3

GND

System ground

 

4

TDP0

Positive polarity of low voltage differential data signal

 

5

TDN0

Negative polarity of low voltage differential data signal

 

6

GND

System ground

 

7

RESET DDDDB15AAA0DDBDB15~DB0 DB15~DB0

Reset signal input terminal. Active at ‘L’.

 

 

RS=’H’: current data on data bus is display data.

 

 

8

TE

Tearing effect output

 

9

NC

NC

 

10

IOVCC

I/O Voltage  1.65V ~ 3.3V

 

11

VCI

Power supply    2.5V ~ 3.3V

 

12

NC

NC

 

13

NC

NC

 

14

NC

NC

 

15

LED-

 

 

 

Power supply for backlight cathode input terminal.

 

16

LED+

AA0DDBDB15~DB0 DB15~DB0

Power supply for backlight anode input terminal.

 

 

 

 

 

 

 

 

 

 

 

6. Timing Characteristics

     

    

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.Optical Characteristics

 

Items

Symbol

Condition

Specifications

Unit

All left side

data are based

on TIAN XIAN WEI product

reference only

Min.

Typ.

Max.

Contrast Ratio

CR

 

-

900

-

-

Response Time

TBRB +TBFB

-

35

50

ms

 

-

 

 

 

Chromaticity

Red

XBRB

 

/

 

-

YBRB

 

/

 

-

Green

XBGB

 

/

 

-

YBGB

 

/

 

-

Blue

XBBB

 

/

 

-

YBBB

 

/

 

-

White

XBWB

0.28

0.31

0.34

-

YBWB

0.29

0.32

0.35

-

Viewing angle

Hor.

f1(3 o’clock)

Center

CR≥10

75

80

-

deg.

f2(9 o’clock)

75

80

-

Ver.

q2(12 o’clock)

75

80

-

q1(6 o’clock)

75

80

-

Uniformity

 

 

 

 

--

 

%

 

 

Note 1: Definition of Contrast Ratio (CR):

      The contrast ratio can be calculated by the following expression.

      Contrast Ratio (CR) = L63 / L0

      L63: Luminance of gray level 63

      L0: Luminance of gray level 0

      CR = CR (10)

      CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note 5.

Note 2: Definition of Response Time (TR, TF):

Figure 3

Note 3: Viewing Angle 

Figure 4

The above “Viewing Angle” is the measuring position with Largest Contrast Ratio; not for good

image quality. View Direction for good image quality is 6 O’clock. Module maker can increase

the “Viewing Angle” by applying Wide View Film.

 

Note 4: Measurement Set-Up:

The LCD module should be stabilized at a given temperature for 20 minutes to avoid abrupt

temperature change during measuring. In order to stabilize the luminance, the measurement

should be executed after lighting Backlight for 20 minutes in a windless room.


Figure 5

 

 

 

8. Reliability Test Item

No.

Test Item

Test Condition

Notes

1

High Temp. Storage

+80°C / 240H

1. Functional test isOK.

Missing Segment,short, unclear segment non-display,display abnormally and liquid crystal leakare un-allowed.

2. No low

temperature bubbles,end seal loose andfall, frame rainbow.

 

 

2

Low Temp. Storage

-30°C / 240H

3

High Tempe. Operating

+70°C / 240H

4

Low Tempe. Operating

-20°C / 240H

5

High Temperature /Humidity storage

50+5°C x 90%RH / 48H

6

Thermal and cold

shock

Static state， -30℃（1 hour） ~80℃ （1 hour） ~ -30℃（1 hour），packaging， 10 cycles

 

 

  

9. Packing Method----TBD

 

                

- END -   



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