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LVDS 7″ High Resolution series

This datasheet gives detailed information about the Riverdi 7″ high brightness LVDS displays. The displays come in different versions: with capacitive or no touchscreen, with a decorative cover glass, as well as with our without a metal mounting frame.

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Rev.1.0
2019-03-21

ITEM CONTENTS UNIT
LCD Type TFT/Transmissive/Normally black /
Size 7.0 Inch
Viewing Direction Full Angle
Active Area (W × H) 154.21 × 85.92 mm2
Dot Pitch (W × H) 0.1432 × 0.1506 mm2
Number Of Dots 1024 (RGB) × 600 /
Driver IC EK79001HK+EK73215BCGA /
Backlight Type 27 LEDs /
Interface Type LVDS /
Pixel Arrangement RGB Vertical Stripe /
Surface Treatment Anti-glare / Clear (for CTP) /
Input Voltage 3.3 V
Weight g

Note 1: RoHS, REACH SVHC compliant

Note 2: LCM weight tolerance: ± 5%.

1. Module classification information

RV T 70 x S L x W x 0x
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
1. BRAND RV – Riverdi
2. PRODUCT TYPE T – TFT Standard

F – TFT Custom

3. DISPLAY SIZE 70 – 7.0”
4. MODEL SERIAL NO. A (A-Z)

U – UxTouch

5. RESOLUTION S – 1024×600 px
6. INTERFACE L – TFT LCD, LVDS
7. FRAME N – No Frame

F – Mounting Frame

8. BACKLIGHT TYPE W – LED White
9. TOUCH PANEL N – No Touch Panel

C – Capacitive Touch Panel

10. VERSION 0x (00-99)

2. Assembly guide – integration

Three options of rear side adhesive tape are available: double side adhesive tape 0.2 mm with 3M 467MP glue, foam double side adhesive tape 0.5 mm with DST 3M 9495LE glue or without any tape.

There are also two versions of glass color: black and white.

Rear side adhesive tape options:

Double side adhesive tape with DST 3M 9495LE glue (total thickness 0.2mm) Foam double side adhesive tape with 3M 9495LE glue (total thickness 0.5mm) Without tape

 

Cover glass color options:

BLACK WHITE
NAME OF THE PRODUCT PART NUMBER DESCRIPTION
RiTFT-70H-LV RVT70ASLNWN00 LVDS
RiTFT-70H-LV-FR RVT70ASLFWN00 LVDS, Frame
RiTFT-70H-LV-CAP RVT70ASLNWC00 LVDS, CTP
RiTFT-70H -LV-CAP-FR RVT70ASLFWC00 LVDS, CTP, Frame
RiTFT-70H-LV-CAP-UX RVT70USLNWC00 LVDS, CTP uxTouch, black cover glass, 0.2mm DST
RVT70USLNWC01 LVDS, CTP uxTouch, black cover glass, 0.5 mm DST
RVT70USLNWC02 LVDS, CTP uxTouch, black cover glass, no DST
RVT70USLNWC03 LVDS, CTP uxTouch, white cover glass, 0.2mm DST
RVT70USLNWC04 LVDS, CTP uxTouch, white cover glass, 0.5mm DST
RVT70USLNWC05 LVDS, CTP uxTouch, white cover glass, no DST

2.1. UxTouch assembly

UxTouch are LCD TFT displays with specially designed projected capacitive touch panels. UxTouch display can be mounted without any holed in the housing. Our standard UxTouch displays include double-sided adhesive tape (DST) to stick TFT easily to the housing.

UxTouch models with double-side adhesive tape (PN with endings 00, 01, 03, 04) can be mounted by connecting the glass to the housing. Riverdi recommends to use support brackets assembled to display’s back. An additional support will stiffen the whole structure and minimize the influence of external factors such as vibration. Figure 1 and Figure 2 below show examples of using support elements.

Figure 1. Example of using support brackets

2.1. Mounting frame

For dimensions 3.5”, 4.3”, 5.0” and 7.0” the product with mounting frame version is available. Thanks to the four catches attached to the side, frame provides strong assembly to the surface by mounting element (like the screw, see Figure 3). The frames are specially designed to fit Riverdi products perfectly. The diameter of the mounting hole is 3.5mm.

Figure 2. Mounting frame

3. Drawings

4. Absolute maximum ratings

PARAMETER SYMBOL MIN MAX UNIT
Power for Circuit Driving VDD -0.3 3.96 V
AVDD -0.5 14.85 V
VGH -0.3 40 V
VGL -20.0 0.3 V
Operating Temperature TOP -20 70 °C
Storage Temperature TST -30 80 °C
Humidity RH 10%(@ 25°C) RH

5. Electrical characteristics

PARAMETER SYMBOL MIN TYP MAX UNIT NOTE
Supply Voltage For Module DVDD 3.0 3.3 3.6 V
VGH 17 18 19 V
VGL -6.6 -6.0 -5.4 V
AVDD 9.4 9.6 9.8 V
VCOM 3.6 3.8 4.0 V
Video Signal Amplitude
(VR, VG, VB)
VIA AVDD-0.4 V
VIAC V AC component
VIDC AVDD/2 V DC component
VCOM VCAC VP-P AC component
VCDC V DC component, Note1
Input Signal Voltage VIH 0.7DVDD DVDD V Note2
VIL 0 0.3DVDD V
Current of power supply IDD 30 45 mA DV DD =3.3V
IADD 35 45 mA AVDD=9.6V
IGH 0.5 1 uA VGH=18V
IGL 0.5 1 mA VGL=-6V

Note1:The brightness of LCD panel could be changed by adjusting the AC component of VCOM.

Note2: STHL, STHR, OEH, L/R, CPH1~CPH3, STVD, STVU, OEV,CKV,U/D

6. Driving LED backlight

ITEM SYMBOL MIN TYP MAX UNIT NOTE
Backlight driving voltage VF 9.0 9.6 10.2 V
Backlight driving current IF 270 mA
Backlight Power Consumption WBL 2592 mW
Life Time 30000 hrs Note

Note: If LED is driven by high current, high ambient temperature & humidity condition. The life time of LED will be reduced. Operating life means brightness goes down to 50% initial brightness. Typical operating life time is estimated data.

7. Power consumption

ITEM SYMBOL CONDITION MIN TYPE MAX UNIT
Gate on power current IVGH VGH=18V 0.5 1 mA
Gate off power current IVGL VGL=-6V 0.5 1 mA
Digital power current IDVDD DVDD=3.3V 30 45 mA
Analog power current IAVDD AVDD=9.6V 35 45 mA
Total power consumption PC 447 604 mW

Note: Typ. Specification: Gray-level test pattern; Max Specification: Black test pattern

256 gray pattern

Black pattern

8. Electro-optical characteristics

ITEM SYMBOL CONDITION MIN TYP MAX UNIT REMARK NOTE
Response Time Tr+Tf θ=0°

∅=0°

Ta=25

35 ms FIG 1. 4
Contrast Ratio Cr 800 FIG 2. 1
Surface Luminance no touch module Lv 1000 cd/m2 FIG 2. 2
Surface Luminance CTP module 900
Viewing Angle Range θ ∅ = 90° 85 deg FIG 3. 6
∅ = 270° 85 deg FIG 3.
∅ = 0° 85 deg FIG 3.
∅ = 180° 85 deg FIG 3.
CIE (x, y)

Chromaticity

Red x θ=0°

∅=0°

Ta=25

FIG 2. 5
y
Green x
y
Blue x
y
White x 0.27 0.31 0.35
y 0.29 0.33 0.37

Note 1. Contrast Ratio(CR) is defined mathematically as below, for more information see  Figure 4 .

Note 2. Surface luminance is the LCD surface from the surface with all pixels displaying white. For more information, see Figure 4 .

Note 3. The uniformity in surface luminance δ WHITE is determined by measuring luminance at each test position 1 through 5, and then dividing the maximum luminance of 5 points luminance by minimum luminance of 5 points luminance. For more information, see Figure 4 .

Note 4. Response time is the time required for the display to transition from white to black (Rise Time, Tr) and from black to white (Decay Time, Tf). For additional information see FIG 1. The test equipment is Autronic-Melchers’s ConoScope series.

Note 5. CIE (x, y) chromaticity, the x, y value is determined by measuring luminance at each test position 1 through 5, and then make average value.

Note 6. Viewing angle is the angle at which the contrast ratio is greater than 2. For TFT module the contrast ratio is greater than 10. The angles are determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the LCD surface. For more information see Figure 4.

Note 7. For viewing angle and response time testing, the testing data is based on Autronic-Melchers’s ConoScope series. Instruments for Contrast Ratio, Surface Luminance, Luminance Uniformity, CIE the test data is based on TOPCON’s BM-5 photo detector.

Note 8. For TFT module, Gray scale reverse occurs in the direction of panel viewing angle.

Figure 3. The definition of response time

Figure 4. Measuring method for Contrast ratio, surface luminance, Luminance uniformity, CIE (x, y) chromaticity

9. Interface description

9.1. TFT LCD Panel

PIN NO. SYMBOL I/O DESCRIPTION
1 VCOM P Common Voltage
2 VDD P Power Voltage for digital circuit
3 VDD P Power Voltage for digital circuit
4 NC No Connection
5 Reset I Global reset pin
6 STBYB I Standby mode, Normally pulled high
STBYB = “1”, normal operation
STBYB = “0” timing controller,
source driver will turn off, all output are High-Z.
7 GND P Ground
8 RXIN0- I -LVDS differential data input
9 RXIN0+ I +LVDS differential data input
10 GND P Ground
11 RXIN1- I -LVDS differential data input
12 RXIN1+ I +LVDS differential data input
13 GND P Ground
14 RXIN2- I -LVDS differential data input
15 RXIN2+ I +LVDS differential data input
16 GND P Ground
17 RXCLKIN- I -LVDS differential clock input
18 RXCLKIN+ I +LVDS differential clock input
19 GND P Ground
20 RXIN3- I -LVDS differential data input
21 RXIN3+ I +LVDS differential data input
22 GND P Ground
23 NC No Connection
24 NC No Connection
25 GND P Ground
26 NC No Connection
27 NC No Connection
28 SELB I 6bit/8bit mode select
29 AVDD P Power for analog circuit
30 GND P Ground
31 LED- P LED Cathode
32 LED- P LED Cathode
33 L/R I Horizontal inversion
34 U/D I Vertical Inversion
35 VGL P Gate OFF voltage
36 NC No Connection
37 NC No Connection
38 VGH P Gate ON Voltage
39 LED+ P LED Anode
40 LED+ P LED Anode

I: input, O:output, P:Power

Note 1. If LVDS input data is 6 bits, SELB must be set to High;
If LVDS input data is 8 bits, SELB must be set to Low.

Note 2. When CABC_EN = ”00”, CABC OFF.
When CABC_EN = “01”, user interface image.
When CABC_EN = “10”, still picture.
When CABC_EN = “11”, moving image.
When CABC off, don’t connect DIMO, else connect it to backlight.

Note 3. When L/R = “0”, set right to left scan direction.
When L/R = “1”, set left to right scan direction.
When U/D = “0”, set top to bottom scan direction.

9.2. U/D R/L Function Description

Scan control Input
UPDN
Scan control Input
SHLR
Scanning Direction
GND VDD Up to Down, Left to Right
VDD GND Down to Up, Right to left
GND GND Up to Down, Right to Left
VDD VDD Down to Up, Left to Right

10. Timing characteristics

10.1. Timing Diagram of Interface Signal

ITEM SYMBOL MIN TYP MAX UNIT NOTE
DE MODE Dot Clock 1/tCLK 45 51.2 57 MHz
DCLK pulse duty Tcwh 40 50 60 %
Horizontal total Time tH 1324 1344 1364 tCLK
Horizontal effective Time tHA 1024 tCLK
Horizontal Blank Time tHB 300 320 340 tCLK
Vertical total Time tV 625 635 645 tH
Vertical effective Time tVA 600 tH
Vertical Blank Time tVB 25 35 45 tH
SYNC MODE Horizontal total Time TH 1324 1344 1364 tCLK
Horizontal Pulse Width Thpw 20 tCLK thb+
thpw
=160DCLK is fixed
Horizontal Back Porch Thb 140 tCLK
Horizontal Front Porch Thfp 140 160 180 tCLK
Horizontal effective Time THA 1024 tCLK
Vertical total Time TV 625 635 645 tH
Vertical Pulse Width Tvpw 3 th tvpw+
tvb
=23th is fixed
Vertical Back Porch Tvb 20 th
Vertical Front Porch Tvfp 2 12 22 th
Vertical Valid Tvd 600 th

11. Capacitive touch screen panel specifications

11.1 Mechanical characteristics

DESCRIPTION INL SPECIFICATION REMARK
Touch Panel Size 7 inch
Product Thickness 2.3mm
Glass Thickness 1.1mm
Ink View Area 155.08mm x 87.42mm
Sensor Active Area 156.68mm x 88.52mm
Input Method 5 Finger
Activation Force Touch
Surface Hardness ≥7H

11.2 Electrical characteristics

DESCRIPTION SPECIFICATION
Operating Voltage DC 2.8~3.3V
Power Consumption (IDD) Active Mode 10~18mA
Sleep Mode 30~50μA
Interface I2C
Linearity <1.5%
Controller FT5426
I2C address 0x38 (7 bit address)
Resolution 1792*1024

11.3 Interface description

PIN NO. SYMBOL DESCRIPTION REMARK
1 VSS Power Ground
2 VDD Power For CTP
3 SCL I2C SCL
4 NC
5 SDA I2C SDA
6 NC
7 /RST Reset pin
8 NC No Connection
9 /INT Interrupt signal from CTP
10 VSS Power Ground

11.4 Interface timing characteristics

PARAMETER MIN MAX UNIT
SCL Frequency 0 400 kHz
Bus Free Time Between a STOP and START Condition 4.7 / μs
Hold Time (repeated) START Condition 4.0 / μs
Data Setup Time 250 / ns
Setup Time for Repeated START Condition 4.7 / μs
Setup Time for STOP Condition 4.0 / μs

11.5 I2C Read/Write Interface Description

Figure 5. Write N bytes to I2C slave

Figure 6. Set Data Address

Figure 7. Read X bytes from I2C Slave

11.6 Communication of the I2C interface with Host

Figure 8. Communication of the I2C interface with Host

11.7 Touch data read protocol

ADDRESS NAME BIT7 BIT6 BIT5 BIT4 BIT3 BIT2 BIT1 BIT0 HOST ACCESS
00h DEVIDE_MODE Device Mode[2:0] RW
01h GEST_ID Gesture ID[7:0] R
02h TD_STATUS Number of touch points[3:0] R
03h TOUCH1_XH 1st Event Flag 1st Touch X Position[11:8] R
04h TOUCH1_XL 1st Touch X Position[7:0] R
05h TOUCH1_YH 1st Touch ID[3:0] 1st Touch X Position[11:8] R
06h TOUCH1_YL 1st Touch Y Position[7:0] R
07h R
08h R
09h TOUCH2_XH 2nd Event Flag 2nd Touch X Position[11:8] R
0Ah TOUCH2_XL 2nd Touch X Position[7:0] R
0Bh TOUCH2_YH 2nd Touch ID[3:0] 2nd Touch X Position[11:8] R
0Ch TOUCH2_YL 2nd Touch Y Position[7:0] R
0Dh R
0Eh R
0Fh TOUCH3_XH 3rd Event Flag 3rd Touch X Position[11:8] R
10h TOUCH3_XL 3rd Touch X Position[7:0] R
11h TOUCH3_YH 3rd Touch ID[3:0] 3rd Touch X Position[11:8] R
12h TOUCH3_YL 3rd Touch Y Position[7:0] R
13h R
14h R
15h TOUCH4_XH 4th Event Flag 4th Touch X Position[11:8] R
16h TOUCH4_XL 4th Touch X Position[7:0] R
17h TOUCH4_YH 4th Touch ID[3:0] 4th Touch X Position[11:8] R
18h TOUCH4_YL 4th Touch Y Position[7:0] R
19h R
1Ah R
1Bh TOUCH5_XH 5th Event Flag 5th Touch X Position[11:8] R
1Ch TOUCH5_XL 5th Touch X Position[7:0] R
1Dh TOUCH5_YH 5th Touch ID[3:0] 5th Touch X Position[11:8] R
1Eh TOUCH5_YL 5th Touch Y Position[7:0] R

11.8 Data description

DEVICE_MODE

This register is the device mode register, configure it to determine the current mode of the chip.

ADRESS BIT ADRESS REGISTER NAME DESCRIPTION
00h 6:4 Device Mode [2:0] 000b Work Mode

100b Factory Mode – Read Raw Data

GEST_ID

This register describes the gesture of a valid touch.

ADRESS BIT ADRESS REGISTER NAME DESCRIPTION
01h 7:0 Gesture ID [7:0] Gesture ID

0x10 Move Up

0x14 Move Down

0x18 Move Right

0x48 Zoom In

0x49 Zoom Out

0x00 No Gesture

TD_STATUS

This register is the Touch Data status register.

ADRESS BIT ADRESS REGISTER NAME DESCRIPTION
02h 3:0 Number of Touch Points [2:0] How Many Points Detected

1-5 is Valid

7:4    

TOUCHn_XH(n:1-10)

This register describes MSB of the X coordinate of the nth touch point and the corresponding event flag.

ADRESS BIT ADRESS REGISTER NAME DESCRIPTION
03h

~

39h

7:6 Event Flag 00b: Put Down

01b: Put Up

10b: Contact

11b: Reserved

5:4   Reserved
3:0 Touch X Position [11:8] MSB of Touch X Position in Pixels

TOUCHn_XL(n:1-10)

This register describes LSB of the X coordinate of the nth touch point.

ADRESS BIT ADRESS REGISTER NAME DESCRIPTION
04h

~

3Ah

7:0 Touch X Position [7:0] LSB of the Touch X Position in Pixels

TOUCHn_YH(n:1-10)

This register describes MSB of the Y coordinate of the nth touch point and corresponding touch ID.

ADRESS BIT ADRESS REGISTER NAME DESCRIPTION
05h

~

3Bh

7:4 Touch ID[3:0] Touch ID of Touch Point
3:0 Touch X Position [11:8] MSB of Touch Y Position in Pixels

TOUCHn_YL(n:1-10)

This register describes LSB of the Y coordinate of the nth touch point.

ADRESS BIT ADRESS REGISTER NAME DESCRIPTION
05h

~

3Bh

7:0 Touch X Position [7:0] LSB of the Touch Y Position in Pixels

11.9 Interrupt Trigger Mode

Figure 9. Interrupt trigger mode timing

12. Inspection

Standard acceptance/rejection criteria for TFT module.

12.1. Inspection condition

Ambient conditions:

  •       Temperature: 25±°C
  •       Humidity: (60±10) %RH
  •       Illumination: Single fluorescent lamp non-directive (300 to 700 lux)

Viewing distance:

35±5cm between inspector bare eye and LCD.

Viewing Angle:

U/D: 45°/45°, L/R 45°/45°

12.2 Inspection standard

Item Criterion
Black spots, white spots, light leakage, Foreign Particle (round Type)

*Spots density: 10 mm

Size < 5”
Average Diameter Qualified Qty
D < 0.2 mm Ignored
0.2 mm < D < 0.3 mm 3
0.3 mm < D < 0.5 mm 2
0.5 mm < D 0
Size >= 5”
Average Diameter Qualified Qty
D<0.2 mm Ignored
0.2 mm < D < 0.3 mm 4
0.3 mm < D < 0.5 mm 2
0.5 mm < D 0
LCD black spots, white spots, light leakage (line Type)

*Spots density: 10 mm

Size < 5”
Length Width Qualified Qty
W< 0.02 Ignored
L < 3.0 0.02 < W <0.05 2
L < 2.5 0.05 < W <0.08
0.08 < W 0
Size >= 5”
Length Width Qualified Qty
W< 0.02 Ignored
L < 3.0 0.02 < W <0.05 4
L < 2.5 0.05 < W <0.08
0.08 < W 0
Item Criterion
Clear spots
Size < 5”
Average Diameter Qualified Qty
D < 0.2 mm Ignored
0.2 mm < D < 0.3 mm 3
0.3 mm < D < 0.5 mm 2
0.5 mm < D 0
Size >= 5”
Average Diameter Qualified Qty
D<0.2 mm Ignored
0.2 mm < D < 0.3 mm 4
0.3 mm < D < 0.5 mm 2
0.5 mm < D 0

*Spots density: 10 mm

Polarizer bubbles
Size < 5”
Average Diameter Qualified Qty
D < 0.2 mm Ignored
0.2 mm < D < 0.5 mm 3
0.5 mm < D < 1 mm 2
1 mm < D 0
Total Q’ty 3
Size >= 5”
Average Diameter Qualified Qty
D<0.25 mm Ignored
0.25 mm < D < 0.5 mm 3
0.5 mm < D 0
Electrical Dot Defect
Size < 5”
item Qualified Qty
Black do defect 4
Bright dot defect 2
Total Dot 5
Size >= 5”
item Qualified Qty
Black do defect 5
Bright dot defect 2
Total Dot 5
Item Criterion
Touch panel spot
Size < 5”
Average Diameter Qualified Qty
D < 0.2 mm Ignored
0.2 mm < D < 0.4 mm 5
0.4 mm < D < 0.5 mm 2
0.5 mm < D 0
Size >= 5”
Average Diameter Qualified Qty
D<0.25 mm Ignored
0.25 mm < D < 0.5 mm 4
0.5 mm < D 0
Touch panel White Line Scratch
Size < 5”
Length Width Qualified Qty
W< 0.02 Ignored
L < 3.0 0.02 < W <0.05 2
L < 2.5 0.05 < W <0.08
0.08 < W 0
Size >= 5”
Length Width Qualified Qty
W< 0.03 Ignored
L < 5.0 0.03 < W <0.05 2
0.05 < W 0

13. Reliability test

NO. TEST ITEM TEST CONDITION REMARK
1 High Temperature Storage 80°C/120hours Note
2 Low Temperature Storage -30°C/120hours
3 High Temperature Operating 70°C/120hours
4 Low Temperature Operating -20°C/120hours
5 High Temperature and Humidity 40°C, 90%RH, 120Hr
6 Peeling Off (Storage) ≥500gf/cm
7 FPC Bending Test ≥6000 times, 2/sec
6 Vibration Test (Storage) 50Hz, 30 min., Amplitude 2cm, X, Y, Z directions
8 Drop Test Height:60 cm

3 corner,8 face/1 cycle

Note:
1) The test samples should be applied to only one test item.
2) Sample size for each test item is 5~10pcs
3) For Damp Proof Test, pure Water (Resistance>1MΩ) should be used.
4) In case of malfunction defect caused by ESD damage, if it would be recovered to normal state after resetting, it would be judged as a good part
5) EL evaluation should be expected from reliability test with humidity and temperature: some defects such as black spot/blemish can happen by natural chemical reaction with humidity and fluorescence EL has.
6) After the reliability test, the test samples should be inspected after 2 hours at least.
7) Functional test is OK. Missing segment, shorts, unclear segment, non display, display abnormally, liquid crystal leak are not allowed.
8) After testing, the current IDD should be within initial value ±20%
9) No low  temperature bubbles, end seal loose and fall, frame rainbow, ACF bubble growing are allowable in the appearance test

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