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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.1.1
2019-12-15

ITEMCONTENTSUNIT
LCD TypeTFT/Transmissive/Normally black/
Size7.0Inch
Viewing DirectionFull Angle
Active Area (W × H)154.21 × 85.92mm2
Dot Pitch (W × H)0.1432 × 0.1506mm2
Number Of Dots1024 (RGB) × 600/
Driver ICEK79001HK+EK73215BCGA/
Backlight Type27 LEDs/
Interface TypeLVDS/
Pixel ArrangementRGB Vertical Stripe/
Surface TreatmentAnti-glare / Clear (for CTP)/
Input Voltage3.3V
Weightg

Note 1: RoHS, REACH SVHC compliant

Note 2: LCM weight tolerance: ± 5%.

1. Module classification information

RVT70xSLxWx0x
1.2.3.4.5.6.7.8.9.10.
1.BRANDRV – Riverdi
2.PRODUCT TYPET – TFT Standard

F – TFT Custom

3.DISPLAY SIZE70 – 7.0”
4.MODEL SERIAL NO.A (A-Z)

U – UxTouch

5.RESOLUTIONS – 1024×600 px
6.INTERFACEL – TFT LCD, LVDS
7.FRAMEN – No Frame

F – Mounting Frame

8.BACKLIGHT TYPEW – LED White
9.TOUCH PANELN – No Touch Panel

C – Capacitive Touch Panel

10.VERSION0x (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:

BLACKWHITE
NAME OF THE PRODUCTPART NUMBERDESCRIPTION
RiTFT-70H-LVRVT70ASLNWN00LVDS
RiTFT-70H-LV-FRRVT70ASLFWN00LVDS, Frame
RiTFT-70H-LV-CAPRVT70ASLNWC00LVDS, CTP
RiTFT-70H -LV-CAP-FRRVT70ASLFWC00LVDS, CTP, Frame
RiTFT-70H-LV-CAP-UXRVT70USLNWC00LVDS, CTP uxTouch, black cover glass, 0.2mm DST
RVT70USLNWC01LVDS, CTP uxTouch, black cover glass, 0.5 mm DST
RVT70USLNWC02LVDS, CTP uxTouch, black cover glass, no DST
RVT70USLNWC03LVDS, CTP uxTouch, white cover glass, 0.2mm DST
RVT70USLNWC04LVDS, CTP uxTouch, white cover glass, 0.5mm DST
RVT70USLNWC05LVDS, 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

PARAMETERSYMBOLMINMAXUNIT
Power for Circuit DrivingVDD-0.33.96V
AVDD-0.514.85V
VGH-0.340V
VGL-20.00.3V
Operating TemperatureTOP-2070°C
Storage TemperatureTST-3080°C
HumidityRH10%(@ 25°C)RH

5. Electrical characteristics

PARAMETERSYMBOLMINTYPMAXUNITNOTE
Supply Voltage For ModuleDVDD3.03.33.6V
VGH171819V
VGL-6.6-6.0-5.4V
AVDD9.49.69.8V
VCOM3.63.84.0V
Video Signal Amplitude
(VR, VG, VB)
VIAAVDD-0.4V
VIACVAC component
VIDCAVDD/2VDC component
VCOMVCACVP-PAC component
VCDCVDC component, Note1
Input Signal VoltageVIH0.7DVDDDVDDVNote2
VIL00.3DVDDV
Current of power supplyIDD3045mADV DD =3.3V
IADD3545mAAVDD=9.6V
IGH0.51uAVGH=18V
IGL0.51mAVGL=-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

ITEMSYMBOLMINTYPMAXUNITNOTE
Backlight driving voltageVF9.09.610.2V
Backlight driving currentIF270mA
Backlight Power ConsumptionWBL2592mW
Life Time50000hrsNote

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

ITEMSYMBOLCONDITIONMIN TYPEMAXUNIT
Gate on power currentIVGHVGH=18V0.51mA
Gate off power currentIVGLVGL=-6V0.51mA
Digital power currentIDVDDDVDD=3.3V3045mA
Analog power currentIAVDDAVDD=9.6V3545mA
Total power consumptionPC447604mW

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

256 gray pattern

Black pattern

8. Electro-optical characteristics

ITEMSYMBOLCONDITIONMINTYPMAXUNITREMARKNOTE
Response TimeTr+Tfθ=0°

∅=0°

Ta=25

35msFIG 1.4
Contrast RatioCr800FIG 2.1
Surface Luminance no touch moduleLv1000cd/m2FIG 2.2
Surface Luminance CTP module900
Viewing Angle Rangeθ∅ = 90°85degFIG 3.6
∅ = 270°85degFIG 3.
∅ = 0°85degFIG 3.
∅ = 180°85degFIG 3.
CIE (x, y)

Chromaticity

Redxθ=0°

∅=0°

Ta=25

FIG 2.5
y
Greenx
y
Bluex
y
Whitex0.270.310.35
y0.290.330.37

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.SYMBOLI/ODESCRIPTION
1VCOMPCommon Voltage
2VDDPPower Voltage for digital circuit
3VDDPPower Voltage for digital circuit
4NCNo Connection
5ResetIGlobal reset pin
6STBYBIStandby mode, Normally pulled high
STBYB = “1”, normal operation
STBYB = “0” timing controller,
source driver will turn off, all output are High-Z.
7GNDPGround
8RXIN0-I-LVDS differential data input
9RXIN0+I+LVDS differential data input
10GNDPGround
11RXIN1-I-LVDS differential data input
12RXIN1+I+LVDS differential data input
13GNDPGround
14RXIN2-I-LVDS differential data input
15RXIN2+I+LVDS differential data input
16GNDPGround
17RXCLKIN-I-LVDS differential clock input
18RXCLKIN+I+LVDS differential clock input
19GNDPGround
20RXIN3-I-LVDS differential data input
21RXIN3+I+LVDS differential data input
22GNDPGround
23NCNo Connection
24NCNo Connection
25GNDPGround
26NCNo Connection
27NCNo Connection
28SELBI6bit/8bit mode select
29AVDDPPower for analog circuit
30GNDPGround
31LED-PLED Cathode
32LED-PLED Cathode
33L/RIHorizontal inversion
34U/DIVertical Inversion
35VGLPGate OFF voltage
36NCNo Connection
37NCNo Connection
38VGHPGate ON Voltage
39LED+PLED Anode
40LED+PLED 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
GNDVDDUp to Down, Left to Right
VDDGNDDown to Up, Right to left
GNDGNDUp to Down, Right to Left
VDDVDDDown to Up, Left to Right

10. Timing characteristics

10.1. Timing Diagram of Interface Signal

ITEMSYMBOLMINTYPMAXUNITNOTE
DE MODEDot Clock1/tCLK4551.257MHz
DCLK pulse dutyTcwh405060%
Horizontal total TimetH132413441364tCLK
Horizontal effective TimetHA1024tCLK
Horizontal Blank TimetHB300320340tCLK
Vertical total TimetV625635645tH
Vertical effective TimetVA600tH
Vertical Blank TimetVB253545tH
SYNC MODEHorizontal total TimeTH132413441364tCLK
Horizontal Pulse WidthThpw20tCLKthb+
thpw
=160DCLK is fixed
Horizontal Back PorchThb140tCLK
Horizontal Front PorchThfp140160180tCLK
Horizontal effective TimeTHA1024tCLK
Vertical total TimeTV625635645tH
Vertical Pulse WidthTvpw3thtvpw+
tvb
=23th is fixed
Vertical Back PorchTvb20th
Vertical Front PorchTvfp21222th
Vertical ValidTvd600th

11. Capacitive touch screen panel specifications

11.1 Mechanical characteristics

DESCRIPTIONINL SPECIFICATIONREMARK
Touch Panel Size7 inch
Product Thickness2.3mm
Glass Thickness1.1mm
Ink View Area155.08mm x 87.42mm
Sensor Active Area156.68mm x 88.52mm
Input Method5 Finger
Activation ForceTouch
Surface Hardness≥7H

11.2 Electrical characteristics

DESCRIPTIONSPECIFICATION
Operating VoltageDC 2.8~3.3V
Power Consumption (IDD)Active Mode10~18mA
Sleep Mode30~50μA
InterfaceI2C
Linearity<1.5%
ControllerFT5426
I2C address0x38 (7 bit address)
Resolution1792*1024

11.3 Interface description

PIN NO.SYMBOLDESCRIPTIONREMARK
1VSSPower Ground
2VDDPower For CTP
3SCLI2C SCL
4NC
5SDAI2C SDA
6NC
7/RSTReset pin
8NCNo Connection
9/INTInterrupt signal from CTP
10VSSPower Ground

11.4 Interface timing characteristics

PARAMETERMINMAXUNIT
SCL Frequency0400kHz
Bus Free Time Between a STOP and START Condition4.7/μs
Hold Time (repeated) START Condition4.0/μs
Data Setup Time250/ns
Setup Time for Repeated START Condition4.7/μs
Setup Time for STOP Condition4.0/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

ADDRESSNAMEBIT7BIT6BIT5BIT4BIT3BIT2BIT1BIT0HOST ACCESS
00hDEVIDE_MODEDevice Mode[2:0]RW
01hGEST_IDGesture ID[7:0]R
02hTD_STATUSNumber of touch points[3:0]R
03hTOUCH1_XH1st Event Flag1st Touch X Position[11:8]R
04hTOUCH1_XL1st Touch X Position[7:0]R
05hTOUCH1_YH1st Touch ID[3:0]1st Touch X Position[11:8]R
06hTOUCH1_YL1st Touch Y Position[7:0]R
07hR
08hR
09hTOUCH2_XH2nd Event Flag2nd Touch X Position[11:8]R
0AhTOUCH2_XL2nd Touch X Position[7:0]R
0BhTOUCH2_YH2nd Touch ID[3:0]2nd Touch X Position[11:8]R
0ChTOUCH2_YL2nd Touch Y Position[7:0]R
0DhR
0EhR
0FhTOUCH3_XH3rd Event Flag3rd Touch X Position[11:8]R
10hTOUCH3_XL3rd Touch X Position[7:0]R
11hTOUCH3_YH3rd Touch ID[3:0]3rd Touch X Position[11:8]R
12hTOUCH3_YL3rd Touch Y Position[7:0]R
13hR
14hR
15hTOUCH4_XH4th Event Flag4th Touch X Position[11:8]R
16hTOUCH4_XL4th Touch X Position[7:0]R
17hTOUCH4_YH4th Touch ID[3:0]4th Touch X Position[11:8]R
18hTOUCH4_YL4th Touch Y Position[7:0]R
19hR
1AhR
1BhTOUCH5_XH5th Event Flag5th Touch X Position[11:8]R
1ChTOUCH5_XL5th Touch X Position[7:0]R
1DhTOUCH5_YH5th Touch ID[3:0]5th Touch X Position[11:8]R
1EhTOUCH5_YL5th 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.

ADRESSBIT ADRESSREGISTER NAMEDESCRIPTION
00h6:4Device Mode [2:0]000b Work Mode

100b Factory Mode – Read Raw Data

GEST_ID

This register describes the gesture of a valid touch.

ADRESSBIT ADRESSREGISTER NAMEDESCRIPTION
01h7:0Gesture 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.

ADRESSBIT ADRESSREGISTER NAMEDESCRIPTION
02h3:0Number 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.

ADRESSBIT ADRESSREGISTER NAMEDESCRIPTION
03h

~

39h

7:6Event Flag00b: Put Down

01b: Put Up

10b: Contact

11b: Reserved

5:4 Reserved
3:0Touch 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.

ADRESSBIT ADRESSREGISTER NAMEDESCRIPTION
04h

~

3Ah

7:0Touch 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.

ADRESSBIT ADRESSREGISTER NAMEDESCRIPTION
05h

~

3Bh

7:4Touch ID[3:0]Touch ID of Touch Point
3:0Touch 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.

ADRESSBIT ADRESSREGISTER NAMEDESCRIPTION
05h

~

3Bh

7:0Touch 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

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

*Spots density: 10 mm

Size < 5”
Average DiameterQualified Qty
D < 0.2 mmIgnored
0.2 mm < D < 0.3 mm3
0.3 mm < D < 0.5 mm2
0.5 mm < D0
Size >= 5”
Average DiameterQualified Qty
D<0.2 mmIgnored
0.2 mm < D < 0.3 mm4
0.3 mm < D < 0.5 mm2
0.5 mm < D0
LCD black spots, white spots, light leakage (line Type)

*Spots density: 10 mm

Size < 5”
LengthWidthQualified Qty
W< 0.02Ignored
L < 3.00.02 < W <0.052
L < 2.50.05 < W <0.08
0.08 < W0
Size >= 5”
LengthWidthQualified Qty
W< 0.02Ignored
L < 3.00.02 < W <0.054
L < 2.50.05 < W <0.08
0.08 < W0
ItemCriterion
Clear spots
Size < 5”
Average DiameterQualified Qty
D < 0.2 mmIgnored
0.2 mm < D < 0.3 mm3
0.3 mm < D < 0.5 mm2
0.5 mm < D0
Size >= 5”
Average DiameterQualified Qty
D<0.2 mmIgnored
0.2 mm < D < 0.3 mm4
0.3 mm < D < 0.5 mm2
0.5 mm < D0

*Spots density: 10 mm

Polarizer bubbles
Size < 5”
Average DiameterQualified Qty
D < 0.2 mmIgnored
0.2 mm < D < 0.5 mm3
0.5 mm < D < 1 mm2
1 mm < D0
Total Q’ty3
Size >= 5”
Average DiameterQualified Qty
D<0.25 mmIgnored
0.25 mm < D < 0.5 mm3
0.5 mm < D0
Electrical Dot Defect
Size < 5”
itemQualified Qty
Black do defect4
Bright dot defect2
Total Dot5
Size >= 5”
itemQualified Qty
Black do defect5
Bright dot defect2
Total Dot5
ItemCriterion
Touch panel spot
Size < 5”
Average DiameterQualified Qty
D < 0.2 mmIgnored
0.2 mm < D < 0.4 mm5
0.4 mm < D < 0.5 mm2
0.5 mm < D0
Size >= 5”
Average DiameterQualified Qty
D<0.25 mmIgnored
0.25 mm < D < 0.5 mm4
0.5 mm < D0
Touch panel White Line Scratch
Size < 5”
LengthWidthQualified Qty
W< 0.02Ignored
L < 3.00.02 < W <0.052
L < 2.50.05 < W <0.08
0.08 < W0
Size >= 5”
LengthWidthQualified Qty
W< 0.03Ignored
L < 5.00.03 < W <0.052
0.05 < W0

13. Reliability test

NO.TEST ITEMTEST CONDITIONREMARK
1High Temperature Storage80°C/120hoursNote
2Low Temperature Storage-30°C/120hours
3High Temperature Operating70°C/120hours
4Low Temperature Operating-20°C/120hours
5High Temperature and Humidity40°C, 90%RH, 120Hr
6Peeling Off (Storage)≥500gf/cm
7FPC Bending Test≥6000 times, 2/sec
6Vibration Test (Storage)50Hz, 30 min., Amplitude 2cm, X, Y, Z directions
8Drop TestHeight: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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