SPECIFICATION Product Type : EPD Model Number : H 3DSHU Description : Screen Size: 4.2" Color: Black and White Display Resolution: 400*300 'DWH : 2017.03.01 Waveshare Electronics :aYHVKDU (OHFWURQLFV 5RRP '\QDPLF :RUOG %XLOGLQJ =KHQKXD 5G )XWLDQ 'LVWULFW 6KHQ]KHQ &KLQD Website: www.ZDYHVKDUH.
4.2" e-Paper Revision History Rev. Issued Date 1.0 May.05.2015 Preliminary 1.1. Jul.27.2015 1. In part note 9-2: Modify each update interval time should be minimum at 150 seconds to 180 seconds. 1.2 Aug.21.2015 1. In part 8: Modify typical operating sequence. 2. In part 12: Delete block diagram. 1.3 Nov.03.2015 1. In part 6: Delete command 70h. 1.4 2.0 Nov.11.2015 1. In part 4: Modify the mechanical drawing of EPD module. 1. In part 7-5): Modify Reference Circuit. Mar.01.
4.2" e-Paper TECHNICAL SPECIFICATION CONTENTS NO. ITEM PAGE - Cover 1 - Revision History 2 - Contents 3 1 Application 4 2 Features 4 3 Mechanical Specifications 4 4 Mechanical Drawing of EPD module 5 5 Input/Output Terminals 6 6 Command Table 8 7 Electrical Characteristics 27 8 Typical Operating Sequence 35 9 Optical Characteristics 39 10 Handling, Safety and Environment Requirements 41 11 Reliability test 42 12 13 www.waveshare.
.2" e-Paper 1. Over View The display is a TFT active matrix electrophoretic display, with interface and a reference system design. The 4.2” active area contains 400×300 pixels, and has 1-bit white/black full display capabilities. An integrated circuit contains gate buffer, source buffer, interface, timing control logic, oscillator, DC-DC, SRAM, LUT, VCOM, and border are supplied with each panel. 2.
A B 91±0.2 EPD 89.2±0.2 PS 86.8±0.2 FPL 84.8±0.1 AA 0.9 1.2 1 1.18±0.1 1 1.2 0.9 www.waveshare.com 1.5max PS (ec area) 1.33 max file number NUMBERS Change the INK DATE NAME DESIGN AUDITING TECHNICS SIGN IC 1.35 max Generation of No. RTV (rtv area) NO. GLASS EC (without protective film) FPL mm 1/1 QUALITY PAGE UNIT MATERIAL ALL UP WEIGHT SUBSTANCE S DRAWINGS AMOUNT SCALE 4.2" e-Paper FIGURE NUMBER NAME Waveshare Electronics QUANTITY 4.2" e-Paper 4.
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4.2" e-Paper Note 5-2: This pin (D/C#) is Data/Command control pin connecting to the MCU. When the pin is pulled HIGH, the data will be interpreted as data. When the pin is pulled Low, the data will be interpreted as command. Note 5-3: This pin (RES#) is reset signal input. The Reset is active Low. Note 5-4: This pin (BUSY) is Busy state output pin. When Busy is low, the operation of chip should not be interrupted and any commands should not be issued to the module.
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4.2" e-Paper # 32 33 34 Command W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 1 0 0 1 0 0 0 1 91h 0 0 1 0 0 1 0 0 1 0 92h Program 0 0 1 0 1 0 0 0 0 0 A0h Mode (PGM) 0 1 1 0 1 0 0 1 0 1 0 0 1 0 1 0 0 0 0 1 A1h 0 0 1 0 1 0 0 0 1 0 A2h 1 1 - - - - - - - - Read Dummy N/A 1 1 # # # # # # # # Data of Address = 000h N/A 1 1 .. .. .. .. .. .. .. .. ..
4.2" e-Paper (1) Panel Setting (PSR) (Register: R00H) Action Setting the panel W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 0 0 0 0 0 1 RES1 RES0 REG_EN BWR UD SHL SHD_N RST_N RES[1:0]: Display Resolution setting (source x gate) 00b: 400x300 (Default) Active source channels: S0 ~ S399. Active gate channels: G0 ~ G299. 01b: 320x300 Active source channels: S0 ~ S319. Active gate channels: G0 ~ G299. 10b: 320x240 Active source channels: S0 ~ S319.
4.2" e-Paper VDG_EN: Gate power selection 0: External gate power from VGH/VGL pins 1: Internal DC/DC function for generating VGH/VGL VCOM_HV: VCOM Voltage Level 0: VCOMH=VDH+VCOMDC, VCOML=VDL+VCOMDC 1: VCOML=VGH, VCOML=VGL VGHL_LV[1:0]: VGH / VGL Voltage Level selection. VGHL_LV VGHL voltage level 00(Default) VGH=16V,VGL= -16V 01 VGH=15V,VGL= -15V 10 VGH=14V,VGL= -14V 11 VGH=13V,VGL= -13V VDH[5:0]: Internal VDH power selection for B/W pixel.
4.2" e-Paper (3) Power OFF (PWR) (R02H) Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 Turning OFF the power 0 0 0 0 0 0 0 0 1 0 After the Power Off command, the driver will power off following the Power Off Sequence. This command will turn off charge pump, T-con, source driver, gate driver, VCOM, and temperature sensor, but register data will be kept until VDD becomes OFF. Source Driver output and Vcom will remain as previous condition, which may have 2 condition: 0V or floating.
4.2" e-Paper 100b: 0.80uS 101b: 1.54uS 111b: 6.58uS 110b: 3.34uS BTPHB[7:6]: Soft start period of phase B. 00b: 10mS 01b: 20mS 10b: 30mS 11b: 40mS BTPHB[5:3]: Driving strength of phase B 000b: strength 1 001b: strength 2 010b: strength 3 011b: strength 4 100b: strength 5 101b: strength 6 110b: strength 7 111b: strength 8 (strongest) BTPHB[2:0]: Minimum OFF time setting of GDR in phase B 000b: 0.27uS 001b: 0.34uS 010b: 0.40uS 011b: 0.54uS 100b: 0.80uS 101b: 1.54uS 110b: 3.
4.2" e-Paper 0: Driver didn’t receive all the data. 1: Driver has already received all the one-frame data (DTM1 and DTM2). After “Data Start” (R10h) or “Data Stop” (R11h) commands and when data_flag=1, the refreshing of panel starts and BUSY signal will become “0”. (11) Display Refresh (DRF) (R12H) Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 Refreshing the display 0 0 0 0 0 1 0 0 1 0 While user sent this command, driver will refresh display (data/VCOM) according to SRAM data and LUT.
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4.2" e-Paper (20) Temperature Sensor Write (TSW) Action (R42H) W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 1 0 0 0 0 1 0 Write External Temperature 0 1 WATTR[7:0] Sensor 0 1 WMSB[7:0] 0 1 WLSB[7:0] This command reads the temperature sensed by the temperature sensor.
4.2" e-Paper B/W mode (BWR=1) DDX[0] 0 VBD[1:0] LUT DDX[0] 00 Floating 01 LUTBW (1→0) 10 LUTWB (0→1) 11 Floating 1(Default) VBD[1:0] LUT 00 Floating 01 LUTWB (1→0) 10 LUTBW (0→1) 11 Floating DDX[1:0]: Data polality. DDX[1] for RED data, DDX[0] for BW data in the B/W/Red mode. DDX[0] for B/W mode.
4.2" e-Paper (23) Low Power Detection (LPD) Action Detect Low Power (R51H) W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 1 0 1 0 0 0 1 1 1 - - - - - - - LPD This command indicates the input power condition. Host can read this flag to learn the battery condition. LPD: Interval Low Power Detection Flag 0: Low power input (VDD < 2.
4.2" e-Paper GD : First active gate = G0 (Fixed); LAST active gate = VRES[8:0] - 1 SD : First active source =S0 (Fixed); LAST active source = HRES[8:3]*8 – 1 (26) GSST Setting(GSST) Action Gate/Source Start setting (R65H) W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 1 1 0 0 1 0 1 0 1 - - - - - - - HST8 0 1 0 0 0 0 1 - - VST[8] 0 1 HST[7:3] - - - - VST[7:0] This command defines the First Active Gate and First Active Source of active channels.
4.2" e-Paper AMV: Analog signal 0: Get Vcom value with the VV command (R81h) (default) 1: Get Vcom value in analog signal. (External analog to digital converter) AMVE: Auto Measure Vcom Enable (/Disable) 0: No effect 1: Trigger auto Vcom sensing. (29) Vcom Value (VV) (R81H) Action Automatically measure Vcom W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 1 0 0 0 0 0 0 1 1 1 - - VV[5:0] This command gets the Vcom value. VV[5:0]: Vcom Value Output VV[5:0] Vcom value 00 0000b -0.
4.2" e-Paper 0 1 0 1 0 1 0 1 0 1 0 1 HRED[7:3] - - - - - 1 1 1 - - VRST[8] - - VRED[8] - - PT_SCAN VRST[7:0] - - - - VRED[7:0] - - - - - This command sets partial window. HRST[8:3]: Horizontal start channel bank. (value 00h~31h) HRED[7:3]: Horizontal end channel bank. (value 00h~31h). HRED must be greater than HRST. VRST[8:0]: Vertical start line. (value 000h~12Bh) VRED[8:0]: Vertical end line. (value 000h~12Bh). VRED must be greater than VRST.
4.2" e-Paper (36) Read OTP Data (ROTP) (RA2H) Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 1 0 1 0 0 0 1 0 1 1 Dummy 1 1 The data of address 0x000 in the OTP Read OTP data for check 1 1 The data of address 0x001 in the OTP 1 1 .. 1 1 The data of address (n-1) in the OTP 1 1 The data of address (n) in the OTP The command is used for reading the content of OTP for checking the data of programming.
4.2" e-Paper SD_W[3:0]: Source power saving width (unit = 660nS) www.waveshare.
4.2" e-Paper 7. Electrical Characteristics 7-1) Absolute maximum rating Parameter Symbol Rating Unit Logic Supply Voltage VCI -0.3 to +6.0 V Logic Input Voltage VIN -0.3 to VCI +2.4 V Operating Temp. range TOPR 0 to +50 ℃ Storage Temp. range TSTG -25 to +70 ℃ 7-2) Panel DC Characteristics The following specifications apply for: VSS = 0V, VCI = 3.3V, TA = 25℃ Parameter Symbol Conditions Min Typ Max Unit Single ground VSS - - 0 - V Logic Supply Voltage VCI - 2.3 3.3 3.
4.2" e-Paper The Typical power consumption 7-3) Panel AC Characteristics 7-3-1) Oscillator frequency The following specifications apply for : VSS = 0V, VCI = 3.3V, TA = 25℃ Parameter Symbol Conditions Min Typ Max Unit Internal Oscillator frequency Fosc VCI=2.3 to 3.6V - 1.625 - MHz 7-3-2) MCU Interface 7-3-2-1) MCU Interface Selection In this module, there are 4-wire SPI and 3-wire SPI that can communicate with MCU. The MCU interface mode can be set by hardware selection on BS1 pins.
4.2" e-Paper 7-3-2-2) MCU Serial Interface (4-wire SPI) The 4-wire SPI consists of serial clock SCLK, serial data SDIN, D/C#, CS#. In SPI mode, D0 acts as SCLK, D1 acts as SDIN. Function CS# D/C# SCLK Write Command L L ↑ Write data L H ↑ Table 7-2: Control pins of 4-wire Serial Peripheral interface Note 7-4: ↑stands for rising edge of signal SDIN is shifted into an 8-bit shift register in the order of D7, D6, ... D0.
4.2" e-Paper 7-3-2-3) MCU Serial Interface (3-wire SPI) The 3-wire serial interface consists of serial clock SCLK, serial data ADIN and CS#. In 3-wire SPI mode, D0 acts as SCLK, D1 acts as SDIN, The pin D/C# can be connected to an external ground. The operation is similar to 4-wire serial interface while D/C# pin is not used. There are altogether 9-bits will be shifted into the shift register on every ninth clock in sequence: D/C# bit, D7 to D0 bit.
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4.2" e-Paper 7-4) Power Consumption Parameter Symbol Conditions TYP Max Unit Remark Panel power consumption during update - 25℃ 26.4 40 mW - Power consumption in standby mode - 25℃ - 0.0165 mW - 7-5) Reference Circuit Figure . 7-5 (1) Figure . 7-5 (2) www.waveshare.
4.2" e-Paper Figure . 7-5 (3) www.waveshare.
4.2" e-Paper Figure . 7-5 (4) www.waveshare.
4.2" e-Paper 8. Typical Operating Sequence 8-1) Normal Operation Flow 1. BWR mode & LUT form Register System Power Reset the EPD driver IC Booster soft start Power setting Power on Panel setting PLL control Resolution setting Load image data Display refresh Border floating Turn off Enter into deep sleep mode www.waveshare.
4.2" e-Paper 2. BWR mode & LUT form OTP System Power Reset the EPD driver IC Booster soft start Power on Panel setting Resolution setting Load image data Display refresh Border floating Turn off Enter into deep sleep mode www.waveshare.
4.2" e-Paper 8-2) Reference Program Code 1.
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4.2" e-Paper 9. Optical characteristics 9-1) Specifications Measurements are made with that the illumination is under an angle of 45 degrees, the detection is perpendicular unless otherwise specified.
4.2" e-Paper 9-3) Reflection 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.
4.2" e-Paper 10. Handling, Safety and Environmental Requirements Warning The display glass may break when it is dropped or bumped on a hard surface. Handle with care. Should the display break, do not touch the electrophoretic material. In case of contact with electrophoretic material, wash with water and soap. Caution The display module should not be exposed to harmful gases, such as acid and alkali gases, which corrode electronic components.
4.2" e-Paper 11. Reliability test TEST 1 CONDITION T = 50℃, High-Temperatu RH=35% re Operation for 240 hrs METHOD REMARK When the experimental cycle finished, the EPD samples When experiment will finished, the EPD be taken out from the high temperature environmental chamber and set aside for a few must meet electrical minutes.
4.2" e-Paper 70cycles, let temperature rise to 70℃. After 30min, temperature and optical Test in white will be adjusted to 70℃ and storage period is 30 performance pattern minutes. After 30 minutes, it needs 30min to let standards. temperature rise to -25℃. One temperature cycle (2hrs) is complete. 2. Temperature cycle repeats 70 times. 3. When 70 cycles finished, the samples will be taken out from experiment chamber and set aside a few minutes.
4.2" e-Paper 12. Point and line standard Shipment Inseption Standard Part-A：Active area Part-B：Border area Equipment：Electrical test fixture, Point gauge Outline dimension： 91.0(H)×77.0(V) ×1.18(D) Unit：mm Temperature Environment 23±2℃ Name Humidity Illuminance 55± 1200～ 5%RH 1500Lux Time 300 mm 35 Sec Causes Spot size Part-A B/W spot in glass or D ≤ 0.25mm Ignore Spot protection sheet, 0.25mm ＜ D ≤ 0.4mm foreign mat. Pin hole Scratch or line defect Distance 0.
4.2" e-Paper 13. Packing Shipment Inseption Standard Part-A：Active area Part-B：Border area Equipment：Electrical test fixture, Point gauge Outlineempty dimension： tray 91.0(H)×77.0(V) ×1.18(D) Unit：mm 2 6 1 3 3 vacuum bag 2nd layer 1st layer 4 4 2 2 2 4 3 00 mm 1 tape 12(PCS)×12(Layer)=144PCS 1150mm 7550mm total 12 layer 78 Protector 9000mm Pallet PP belt 144(PCS)×16(BOX)=2304PCS Note: AQL = 0.4 www.waveshare.
