DALIAN GOODDISPLAY CO. 07502-2 Manual Download Page 33

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6. Optical characteristics
6.1 Specifications

Measurements are made with that the illumination is under an angle of 45 degrees,

the detection is perpendicular unless otherwise specified.

T=25

℃

SYMBOL

PARAMETER

CONDITIONS MIN

TYP.

MAX

UNIT

Note

Reflectance

White

Note

6.1

-1

2Grey Level

DS+(WS-DS)×n(m-1)

Contrast Ratio

Dark State L* value

Note

-1

Dark State a* value

Note

6.1

-1

White State L* value

Note

6.1

-1

Red State L* value

Red

Note

6.1

-1

Red State a* value

Red

Note

6.1

-1

Panel’s life

℃～

℃

5years

Note

6.1

-2

Panel

Image Update

Storage and

transportation

Update the white

screen

Update Time

Operation

Suggest Updated

once a day

WS : White state, DS : Dark state,RS: Red state
Note 6.1-1 : Luminance meter : Eye - One Pro Spectrophotometer

Note 6.1-2 :We don't guarantee 5 years pixels display quality for humidity below

45%RH or above 70%RH

；

Suggest Updated once a day;

GDEH075Z

／

7.5 inch Series

www.good-display.com

GOOD DISPLAY

Summary of Contents for 07502-2

Page 1: ...7 5 inch E paper Display Series GDEH075Z90 Dalian Good Display Co Ltd G O O D D I S P L A Y ...

Page 2: ...0 05 25 Revision 1 2 Design Engineering Approval Check Design Zhongnan Building No 18 Zhonghua West ST Ganjingzi DST Dalian CHINA Tel 86 411 84619565 Fax 86 411 84619585 810 Email info good display com Website www good display com GDEH075Z90 2 38 7 5 inch Series www good display com G O O D D I S P L A Y ...

Page 3: ...aximum rating 3 2 DC Characteristics 3 3 Serial Peripheral Interface Timing 3 4 Power Consumption 4 Typical Operating Sequence 4 1 Normal Operation Flow 5 Command Table 6 Optical characteristics 6 1 Specifications 6 2 Definition of contrast ratio 6 3 Reflection Ratio 7 Point and line standard 8 Packing 9 Precautions 5 5 5 5 6 7 9 10 11 11 13 14 14 14 15 15 20 20 21 33 33 34 34 35 37 38 1 7 Matched...

Page 4: ...tent Date Producer 1 0 New release 2019 10 14 GDEH075Z90 4 38 7 5 inch Series 1 1 Updating 1 6 Reference Circuit 2020 03 30 www good display com 1 2 Updating 1 6 Reference Circuit 2020 05 25 G O O D D I S P L A Y ...

Page 5: ... Ultra Low current deep sleep mode On chip display RAM Low voltage detect for supply voltage High voltage ready detect for driving voltage Internal temperature sensor 10 byte OTP space for module identification Waveform stored in On chip OTP Serial peripheral interface available On chip oscillator On chip booster and regulator control for generating VCOM Gate and Source driving voltage I2C signal ...

Page 6: ...677 3 RESOLUTION 528gate X 880source 4 pixel size O 1855mm X 0 1855mm 5 Unspecified Tolerance 士0 20 6 Material conform to the ROHS standard 7 as the focus control si 在 FPC PI Stiffener Total ThicknessO 30 0 03 妇 I SHEET 了可勹 DATE 2019 10 14 DALIAN GOOD DISPLAY CO LTD ALL UNITS mm DWN CHK APP DATE 2019 10 14 MODEL NUMBER GDEH75Z90 1 4 Mechanical Drawing of EPD module GDEH075Z90 6 38 7 5 inch Series...

Page 7: ...9 BUSY Busy state output pin Note 1 5 4 10 RES Reset Note 1 5 3 11 D C Data Command control pin Note 1 5 2 12 CS Chip Select input pin Note 1 5 1 13 SCL serial clock pin SPI 14 SDA serial data pin SPI 15 VDDIO Power for interface logic pins 16 VCI Power Supply pin for the chip 17 VSS Ground 18 VDD Core logic power pin 19 VPP Power Supply for OTP Programming 20 VSH1 Positive Source driving voltage ...

Page 8: ...nal input The Reset is active low Note 1 5 4 This pin BUSY is Busy state output pin When Busy is High the operation of chip should not be interrupted and any commands should not be issued to the module The driver IC will put Busy pin High when the driver IC is working such as Outputting display waveform or Communicating with digital temperature sensor Note 1 5 5 This pin BS1 is for 3 line SPI or 4...

Page 9: ...1 6 Reference Circuit GDEH075Z90 9 38 7 5 inch Series www good display com G O O D D I S P L A Y ...

Page 10: ... red Yellow Good Display s E paper Display And it is also added the functions of USB serial port Raspberry Pi and LED indicator light ect DESPI Development Kit consists of the development board and the pinboard More details about the Development Kit please click to the following link http www e paper display com products_detail productId 402 html GDEH075Z90 10 38 7 5 inch Series www good display c...

Page 11: ... is not applied to the module 2 It s recommended that you attach a transparent protective plate to the surface in order to protect the EPD Transparent protective plate should have sufficient strength in order to resist external force 3 You should adopt radiation structure to satisfy the temperature specification 4 Acetic acid type and chlorine type materials for the cover case are not desirable be...

Page 12: ... the specification is not implied Exposure to limiting values for extended periods may affect device reliability Application information Where application information is given it is advisory and dose not form part of the specification Product Environmental certification ROHS REMARK All The specifications listed in this document are guaranteed for module only Post assembled operation or component s...

Page 13: ...068 2 14NB 8 Package Vibration 1 04G Frequency 10 500Hz Direction X Y Z Duration 1hours in each direction Full packed for shipment 9 Package Drop Impact Drop from height of 100 cm on Concrete surface Drop sequence 1 corner 3edges 6face One drop for each Full packed for shipment 10 UV exposure Resistance 765 W for 168hrs 40 IEC 60068 2 5 Sa 11 Electrostatic discharge Machine model 250V 0Ω 200pF IEC...

Page 14: ...ply for VSS 0V VCI 3 3V TOPR 25 Table 3 2 1 DC Characteristics Symbol Parameter Test Condition Applicable pin Min Typ Max Unit VCI VCI operation voltage VCI 2 2 3 3 7 V VIH High level input voltage SDA SCL CS D C RES BS1 0 8VDDIO V VIL Low level input voltage 0 2VDDIO V VOH High level output voltage IOH 100uA BUSY 0 9VDDIO V VOL Low level output voltage IOL 100uA 0 1VDDIO V Iupdate Module operatin...

Page 15: ...U Time CSB has to be low before the first rising edge of SCLK 100 ns tCSHLD Time CSB has to remain low after the last falling edge of SCLK 50 ns tCSHIGH Time CSB has to remain high between two transfers 250 ns tSCLHIGH Part of the clock period where SCL has to remain high 180 ns tSCLLOW Part of the clock period where SCL has to remain low 180 ns tSOSU Time SO SDA Read Mode will be stable before th...

Page 16: ...l interface SPI L Required Required Required SCL SDI SDO 3 wire serial peripheral interface SPI 9 bits SPI H Required Required L SCL SDI SDO 3 5 2 MCU Serial Peripheral Interface 4 wire SPI The 4 wire SPI consists of serial clock SCL serial data input SDI D C and CS The control pins status in 4 wire SPI in writing command data is shown in Table 1 5 2 and the write procedure in 4 wire SPI is shown ...

Page 17: ... Byte register according to D C pin Figure 3 5 1 wire mode In the read operation after CS is pulled low the first byte sent is command byte D C is pulled low After command byte sent the following byte s read are data byte s so D C bit is then pulled high An 8 bit data will be shifted out on every clock falling edge The serial data output SDO bit shifting sequence is D7 D6 to D0 bit Figure 6 2 show...

Page 18: ... D7 bit D6 bit to D0 bit The first bit is D C bit which determines the following byte is command or data When D C bit is 0 the following byte is command When D C bit is 1 the following byte is data Table 3 5 3 shows the write procedure in 3 wire SPI Table 3 5 3 Control pins status of 3 wire SPI Function SCL pin SDI pin D C pin CS pin Write command Command bit Tie LOW L Write data Data bit Tie LOW ...

Page 19: ...te send the following byte s are data byte s with D C bit is 1 After D C bit sending from MCU an 8 bit data will be shifted out on every clock falling edge The serial data output SDO bit shifting sequence is D7 D6 to D0 bit Figure 7 4 shows the read procedure in 3 wire SPI Figure 3 5 4 Read procedure in 3 wire SPI mode GDEH075Z90 19 38 7 5 inch Series www good display com G O O D D I S P L A Y ...

Page 20: ...4 Typical Operating Sequence 4 1 Normal Operation Flow GDEH075Z90 20 38 7 5 inch Series www good display com G O O D D I S P L A Y ...

Page 21: ... G3 G2 B 1 SM Change scanning order of gate driver SM 0 POR G0 G1 G2 G3 679 left and right gate interlaced SM 1 G0 G2 G4 G678 G1 G3 G679 B 0 TB TB 0 POR scan from G0 to G679 TB 1 scan from G679 to G0 0 1 A7 A6 A5 A4 A3 A2 A1 A0 0 1 0 0 0 0 0 0 A9 A8 0 1 0 0 0 0 B2 B1 B0 0 0 03 0 0 0 0 0 0 1 1 Gate Driving voltage Control Set Gate driving voltage A 4 0 00h POR VGH setting from 12V to 20V A 4 0 VGH ...

Page 22: ...A4h 4 6 C5h 7 9 A5h 4 7 C6h 8 A6h 4 8 C7h 8 1 A7h 4 9 C8h 8 2 A8h 5 C9h 8 3 A9h 5 1 CAh 8 4 AAh 5 2 CBh 8 5 ABh 5 3 CCh 8 6 ACh 5 4 CDh 8 7 ADh 5 5 CEh 8 8 AEh 5 6 Other NA 0 0 0F 0 0 0 0 1 1 1 1 Gate scan start position Set the scanning start position of the gate driver The valid range is from 0 to 679 A 9 0 000h POR When TB 0 SCN 9 0 A 9 0 When TB 1 SCN 9 0 679 A 9 0 0 1 A7 A6 A5 A4 A3 A2 A1 A0 ...

Page 23: ...pper and lower bit of the address 00 Y decrement X decrement 01 Y decrement X increment 10 Y increment X decrement 11 Y increment X increment POR A 2 AM Set the direction in which the address counter is updated automatically after data are written to the RAM AM 0 the address counter is updated in the X direction POR AM 1 the address counter is updated in the Y direction 0 1 0 0 0 0 0 A2 A1 A0 0 0 ...

Page 24: ...tarts BUSY pad will output high during detection The detection result can be read from the Status Bit Read Command 0x2F 0 1 0 0 0 0 0 A2 A1 A0 0 0 18 0 0 0 1 1 0 0 0 Temperature Sensor Control Temperature Sensor Selection A 7 0 48h POR external temperatrure sensor A 7 0 80h Internal temperature sensor 0 1 A7 A6 A5 A4 A3 A2 A1 A0 0 0 1A 0 0 0 0 0 0 1 0 Temperature Sensor Control Write to temperatur...

Page 25: ...play Update A 7 0 00h POR A 7 4 Red RAM option 0000 Normal 0100 Bypass RAM content as 0 1000 Inverse RAM content A 3 0 BW RAM option 0000 Normal 0100 Bypass RAM content as 0 1000 Inverse RAM content 0 0 22 0 0 1 0 0 1 A7 A6 A5 A4 Enable Clock Signal Then Enable ANALOG Then DISPLAY with DISPLAY Mode 1 Then Disable ANALOG Then Disable OSC Enable Clock Signal Then Enable ANALOG Then DISPLAY with DISP...

Page 26: ...ure value from I2C Single Master Interface B9 Then Load LUT with DISPLAY Mode 2 To Disable Clock Signal Enable ANALOG Then DISPLAY with DISPLAY Mode 1 47 Then Disable ANALOG Then Disable OSC Enable ANALOG Then DISPLAY with DISPLAY Mode 2 4F Then Disable ANALOG Then Disable OSC To Enable Clock Signal 80 CLKEN 1 To Enable Clock Signal then Enable ANALOG CLKEN 1 C0 ANALOGEN 1 Enable ANALOG Then DISPL...

Page 27: ...gister 41h to select reading RAM BW RAM RED until another command is written Address pointers will advance accordingly The 1st byte of data read is dummy data 0 0 28 0 0 1 0 1 0 0 0 VCOM Sense Enter VCOM sensing conditions and hold for duration defined in 29h before reading VCOM value The sensed VCOM voltage is stored in register The command required CLKEN 1 and ANALOGEN 1 Refer to Register 0x22 f...

Page 28: ... 1 3 84 3 3 38h 1 4 88 3 4 3Ch 1 5 8C 3 5 40h 1 6 90 3 6 44h 1 7 94 3 7 48h 1 8 98 3 8 4Ch 1 9 9C 3 9 50h 2 A0 4 54h 2 1 0 0 2D 0 0 1 0 1 1 0 1 OTP Register Read for Display Option Read Register for Display Option A 7 0 VCOM OTP Selection Command 0x37 Byte A B 7 0 VCOM Register Command 0x2C C 7 0 G 7 0 Display Mode Command 0x37 Byte B to Byte G 5 bytes H 7 0 K 7 0 Waveform Version Command 0x37 Byt...

Page 29: ... 0 Display Mode for WS 35 32 0 Display Mode 1 1 DisplayMode2 F 6 PingPong for Display Mode 2 F 7 PingPong for Display Mode 1 1 Ping Pong 0 Default G 7 0 J 7 0 module ID waveform version Remarks A 7 0 J 7 0 can be stored in OTP 0 1 0 0 0 0 0 0 0 0 0 1 B7 B6 B5 B4 B3 B2 B1 B0 0 1 C7 C6 C5 C4 C3 C2 C1 C0 0 1 D7 D6 D5 D4 D3 D2 D1 D0 0 1 E7 E6 E5 E4 E3 E2 E1 E0 0 1 F7 F6 F5 F4 F3 F2 F1 F0 0 1 G7 G6 G5 ...

Page 30: ...0 0 1 Read RAM Option Read RAM Option A 0 0 POR 0 Read RAM corresponding to 24h 1 Read RAM corresponding to 26h 0 1 0 0 0 0 0 0 0 A0 0 0 44 0 1 0 0 0 1 0 0 Set RAM X address Start End position Specify the start end positions of the window address in the X direction by an address unit for RAM A 9 0 XSA 9 0 XStart POR 000h B 5 0 XEA 9 0 XEnd POR 3BFh 0 1 A7 A6 A5 A4 A3 A2 A1 A0 0 1 A9 A8 0 1 0 0 B5 ...

Page 31: ...n X direction according to Source BUSY pad will output highduring operation 0 1 A7 A6 A5 A4 0 A2 A1 A0 0 0 47 0 1 0 0 0 1 1 1 Auto Write B W RAM for Regular Pattern Auto Write B W RAM for Regular Pattern A 7 0 00h POR Auto Write B W RAM for Regular Pattern A 7 0 00h POR A 2 0 Step Width POR 000 Step of alter RAM in X direction according to Source uring operation BUSY pad will output high 0 1 A7 A6...

Page 32: ... A9 A8 0 0 4F 0 1 0 0 1 1 1 1 Set RAM Y address counter Make initial settings for the RAM Y address in the address counter AC A 9 0 000h POR 0 1 A7 A6 A5 A4 A3 A2 A1 A0 0 1 0 0 0 0 0 0 A9 A8 0 0 7F 0 1 1 1 1 1 1 1 NOP This command is an empty command it does not have any effect on the display module However it can be used to terminate Frame Memory Write or Read Commands GDEH075Z90 32 38 7 5 inch S...

Page 33: ... 5 Note 6 1 1 WS White State L value 63 65 Note 6 1 1 RS Red State L value Red 25 28 Note 6 1 1 Red State a value Red 36 40 Note 6 1 1 Panel s life 0 40 5years Note 6 1 2 Panel Image Update Storage and transportation Update the white screen Update Time Operation Suggest Updated once a day WS White state DS Dark state RS Red state Note 6 1 1 Luminance meter Eye One Pro Spectrophotometer Note 6 1 2 ...

Page 34: ...ection Ratio The reflection ratio is expressed as R Reflectance Factor white board x L center L white board L center is the luminance measured at center in a white area R G B 1 L white board is the luminance of a standard white board Both are measured with equivalent illumination source The viewing angle shall be no more than 2 degrees GDEH075Z90 34 38 7 5 inch Series www good display com G O O D ...

Page 35: ...ow Not Allow Ignore Display error Electric Display Not Allow Not Allow Ignore Scratch or line defect include dirt Visual Film card L 2 W 0 1 Ignore Ignore 1 0mm L 9 0mm 0 1 W 0 2mm N 2 Ignore L 9 0 W 0 2 Not Allow Ignore PS Bubble Visual Film card D 0 4mm Ignore Ignore 0 4mm D 0 6mm N 4 Ignore D 0 6 mm Not Allow Ignore Side Fragment Visual Film card Do not affect the electrode circuit Corner chipp...

Page 36: ...L long W wide D point size GDEH075Z90 36 38 7 5 inch Series www good display com G O O D D I S P L A Y ...

Page 37: ...8 Packing GDEH075Z90 37 38 7 5 inch Series www good display com G O O D D I S P L A Y ...

Page 38: ...own as Ghosting or Image Sticking may occur It is recommended to refreshed the ESL EPD Tag every 24 hours in use case It is recommended that customer ships or stores the ESL EPD Tag with a completely white image to avoid this issue 6 High temperature high humidity sunlight or fluorescent light may degrade the EPD panel s performance Please do not expose the unprotected EPD panel to high temperatur...

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