Related Manuals for Waveshare 4.2inch e-Paper V2
Summary of Contents for Waveshare 4.2inch e-Paper V2
- Page 1 4.2in ch e-Paper V2 User Manual 4.2inch e-Paper V2 User Manual www.waveshare.com/wiki...
- Page 2 4.2inch e-Paper V2 User Manual Revision History Version Date Item Page Remark New Creation NOV.06.2020...
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Page 3: Table Of Contents
4.2inch e-Paper V2 User Manual Contents 1. OVERVIEW ................................1 2. FEATURES ................................2 3. MECHANICAL SPECIFICATION ..........................3 4. MECHANICAL DRAWING OF EPD MODULE ......................4 5. INPUT/OUTPUT PIN ASSIGNMENT ........................5 6. ELECTRICAL CHARACTERISTICS .......................... 7 6.1 Absolute Maximum Rating ........................7 6.2 DC Characteristics ............................ -
Page 4: Overview
User Manual 1. OVERVIEW 4.2inch e-Paper V2 is an Active Matrix Electrophoretic Display (AM EPD), with interface and a reference system design. The display is capable to display images at 1-bit white, black full display capabilities. The 4.2inch active area contains 400×300 pixels. The module is a TFT-array driving electrophoresis display, with integrated circuits including gate driver, source driver, MCU interface, timing controller, oscillator, DC-DC, SRAM, LUT, VCOM. -
Page 5: Features
4.2inch e-Paper V2 User Manual 2. FEATURES 400×300 pixels display High contrast High reflectance Ultra wide viewing angle Ultra low power consumption Pure reflective mode Bi-stable display Commercial temperature range Landscape portrait modes ... -
Page 6: Mechanical Specification
4.2inch e-Paper V2 User Manual 3. MECHANICAL SPECIFICATION Parameter Specification Unit Remark Screen Size Inch Display Resolution 400(H) x 300(V) Pixel DPI:120 Active Area 84.8 x 63.6 Pixel Pitch 0.212 x 0.212 Pixel Configuration Rectangle Outline Dimension 91(H) x 77 (V) x 1.2(D) Weight 16.1±0.3... -
Page 7: Mechanical Drawing Of Epd Module
4.2inch e-Paper V2 User Manual 4. MECHANICAL DRAWING OF EPD MODULE... -
Page 8: Input/Output Pin Assignment
4.2inch e-Paper V2 User Manual 5. INPUT/OUTPUT PIN ASSIGNMENT I = Input Pin, O = Output Pin, I/O = Bidirectional Pin (Input/output), P = Power Pin, C = Capacitor Pin. Name Description Remark Do not connect with other NPC pins... - Page 9 4.2inch e-Paper V2 User Manual Note 5-3: This pin (RES#) is reset signal input. The Reset is active low. Note 5-4: This pin is Busy state output pin. When Busy is High, the operation of chip should not be interrupted, command should not be sent. The chip would put Busy pin High when -Outputting display waveform-Communicating with digital temperature sensor.
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Page 10: Electrical Characteristics
4.2inch e-Paper V2 User Manual 6. ELECTRICAL CHARACTERISTICS 6.1 ABSOLUTE MAXIMUM RATING Parameter Symbol Rating Unit Logic supply voltage -0.5 to +6.0 Logic Input voltage -0.5 to VCI +0.5 Logic Output voltage VOUT -0.5 to VCI +0.5 Operating Temp range... -
Page 11: Dc Characteristics
4.2inch e-Paper V2 User Manual 6.2 DC CHARACTERISTICS The following specifications apply for: VSS=0V, VCI=3.0V, TOPR =23ºC. Applicable Parameter Symbol Condition Min. Typ. Max. Unit Single ground Logic supply voltage Core logic voltage High level input 0.8V voltage Low level input 0.2V... -
Page 12: Ac Characteristics
4.2inch e-Paper V2 User Manual waveform provided by Waveshare. 6.3 AC CHARACTERISTICS 6.3.1 MCU INTERFACE SELECTION The IC can support 3-wire/4-wire serial peripheral. MCU interface is pin selectable by BS1 shown in Table 6-1. Table 6-1: Interface pins assignment under different MCU interface... -
Page 13: Mcu Serial Peripheral Interface (3-Wire Spi)
4.2inch e-Paper V2 User Manual Note: (1) L is connected to VSS and H is connected to VDDIO. (2) ↑ stands for rising edge of signal. SDA (Write Mode) is shifted into an 8-bit shift register on every rising edge of SCL in the order of D7, D6, ... -
Page 14: Interface Timing
4.2inch e-Paper V2 User Manual Note: (1) L is connected to VSS and H is connected to VDDIO. (2) ↑ stands for rising edge of signal. Figure 6-3: Write procedure in 3-wire SPI mode 6.3.4 INTERFACE TIMING The following specifications apply for: VSS=0V, VCI=3.0V, TOPR =23ºC. - Page 15 4.2inch e-Paper V2 User Manual Write mode Symbol Parameter Min. Typ. Max. Unit fSCL SCL frequency (Write Mode) tCSSU Time CS# has to be low before the first rising edge of SCLK Time CS# has to remain low after the last falling edge of...
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Page 16: Command Table
4.2inch e-Paper V2 User Manual 7. COMMAND TABLE R/W# D/C# Description Command Gate setting Set A[8:0]=12Bh[POR], 300MUX MUX Gate lines setting as (A[8:0] + 1). B[2:0]=000[POR] Gate scanning sequence and direction B[2]:GD Selects the 1st output Gate GD=0[POR], G0 is the 1st gate output... - Page 17 4.2inch e-Paper V2 User Manual 10.5 16.5 11.5 17.5 12.5 18.5 12.5 19.5 13.5 Other 14.5 Set Source Driving voltage A[7:0] = 41h[POR], VSH1 Source at 15V Driving B[7:0]=A8h[POR], VSH2 voltage at 5V control C[7:0]=32h[POR], VSL1 at -15V Remark: VSH1>=VSH2...
- Page 18 4.2inch e-Paper V2 User Manual 12.2 16.4 -14.5 12.4 16.6 12.6 16.8 -15.5 12.8 Other -16.5 Other Other Program Initial Code Setting The command required Initial code CLKEN=1 setting OTP Refer to Register Ox22 for Program detail. BUSY pad will output high during operation.
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Page 31: Optical Specifications
4.2inch e-Paper V2 User Manual 8. OPTICAL SPECIFICATIONS Measurements are made with that the illumination is under an angle of 45 degree, the detection is perpendicular unless otherwise specified. Symbol Parameter Conditions Min Typ. Max Units Notes Write Reflectivity White... -
Page 32: Handling, Safety, And Environment Requirements
4.2inch e-Paper V2 User Manual 9. HANDLING, SAFETY, AND ENVIRONMENT 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. -
Page 33: Reliability Test
4.2inch e-Paper V2 User Manual 10. RELIABILITY TEST Test items Test condition T = -25°C, 240 h Low-Temperature Storage Test in white pattern T=+70ºC, RH=40%, 240h High-Temperature Storage Test in white pattern High-Temperature Operation T=+50ºC, RH=30%, 240h Low-Temperature Operation 0ºC, 240h High Temperature T=40ºC , RH=90%, 168h... -
Page 34: Block Diagram
4.2inch e-Paper V2 User Manual 11. BLOCK DIAGRAM... -
Page 35: Reference Circuit
4.2inch e-Paper V2 User Manual 12. REFERENCE CIRCUIT... -
Page 36: Typical Operating Sequence
4.2inch e-Paper V2 User Manual 13. TYPICAL OPERATING SEQUENCE 13.1 NORMAL OPERATION FLOW... -
Page 37: Normal Operation Reference Program Code
4.2inch e-Paper V2 User Manual 13.2 NORMAL OPERATION REFERENCE PROGRAM CODE ACTION VALUE/DATA COMMENT POWER ON delay 10ms PIN CONFIG RESE# delay 200us Hardware reset RESE# high delay 200us Read busy pin Wait for busy low Command 0x12 Software reset... -
Page 38: Inspection Condition
4.2inch e-Paper V2 User Manual 14. INSPECTION CONDITION 14.1 ENVIRONMENT Temperature: 25±3℃ Humidity: 55±10%RH 14.2 ILLUMINANCE Brightness:1200～1500LUX; distance:20-30CM; Angle: Relate 45° surround. 14.3 INSPECT METHOD 14.4 DISPLAY AREA... -
Page 39: Inspection Standard
4.2inch e-Paper V2 User Manual 14.5 INSPECTION STANDARD 14.5.1 ELECTRIC INSPECTION STANDARD Defect Item Standard Method Scope level Display complete Display Display uniform D≤0.25mm, Allowed Visual Black/White spots 0.25mm<D≤0.4mm, N≤3, and inspection Distance≥5mm Zone A 0.4mm<D Not Allow Visual/ Inspection card... -
Page 40: Appearance Inspection Standard
4.2inch e-Paper V2 User Manual 14.5.2 APPEARANCE INSPECTION STANDARD Defect Item Standard Method Scope level Visual spots/Bubble/Foreign Zone A Inspection bodies/Dents D≤0.25mm, Allowed 0.25mm<D≤0.4mm, N≤3 D>0.4mm, Not allow Zone A Glass crack Not Allowed Visual/ Zone B Microscope Zone A... - Page 41 4.2inch e-Paper V2 User Manual height/FPL/Edge Edge adhesives seep in ≤1/2 Margin adhesive bubble width FPL tolerance ±0.3mm Edge adhesive bubble: bubble Width≤1/2 Margin width: Length≤0.5mm, n≤3 Surface scratch but not effect protect Visual Protect film function, Allow Inspection...
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Page 42: Packing
4.2inch e-Paper V2 User Manual 15. PACKING... -
Page 43: Precautions
4.2inch e-Paper V2 User Manual 16. PRECAUTIONS (1) Do not apply pressure to the EPD panel in order to prevent damaging it. (2) Do not connect or disconnect the interface connector while the EPD panel is in operation. (3) Do not touch IC bonding area. It may scratch TFT lead or damage IC function.