Related Manuals for Waveshare 2.9inch e-Paper V4
Summary of Contents for Waveshare 2.9inch e-Paper V4
- Page 1 2.9inch e-Paper (B) V4 User Manual 2.9inch e-Paper (B) V4 User Manual www.waveshare.com/wiki...
- Page 2 2.9inch e-Paper (B) V4 User Manual Revision History Version Date Item Remark 2023/12/12 Preliminary...
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Page 3: Table Of Contents
2.9inch e-Paper (B) V4 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 Panel DC Characteristics ...................... - Page 4 2.9inch e-Paper (B) V4 User Manual 14.4 Display area ..........................33 14.5 Inspection Standard ....................... 34 14.5.1 Electric Inspection standard ....................34 14.5.2 Appearance inspection standard ..................35 15. PACKING ............................37 16. PRECAUTIONS ..........................38...
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Page 5: Overview
2.9inch e-Paper (B) V4 User Manual 1. OVERVIEW 2.9 e-Paper (B) V4 is an Active Matrix Electrophoretic Display (AM EPD), with interface and a reference system design. The 2.9inch active area contains 296x128 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 6: Features
2.9inch e-Paper (B) V4 User Manual 2. FEATURES 296×128 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 7: Mechanical Specification
2.9inch e-Paper (B) V4 User Manual 3. MECHANICAL SPECIFICATION Parameter Specification Unit Remark Screen Size Inch Display Resolution 296(H) x 128(V) Pixel DPI:112 Active Area 29.056 x 66.896 Pixel Pitch 0.227 x 0.226 Pixel Configuration Rectangle Outline Dimension 36.7(H) x 79.0 (V) x 1.20(D) Weight 5.5±0.5... -
Page 8: Mechanical Drawing Of Epd Module
2.9inch e-Paper (B) V4 User Manual 4. MECHANICAL DRAWING OF EPD MODULE... -
Page 9: Input/Output Pin Assignment
2.9inch e-Paper (B) V4 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 Keep Open N-Channel MOSFET Gate Drive Control RESE... - Page 10 2.9inch e-Paper (B) V4 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.
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Page 11: Electrical Characteristics
2.9inch e-Paper (B) V4 User Manual 6. ELECTRICAL CHARACTERISTICS 6.1 ABSOLUTE MAXIMUM RATING Parameter Symbol Rating Unit Logic supply voltage -0.5 to +4.0 Logic Input voltage -0.5 to VCI +0.5 Logic Output voltage VOUT -0.5 to VCI +0.5 Operating Temp range TOPR 0 to +40 ºC... -
Page 12: Panel Dc Characteristics
Notes: 1. The typical power is measured with following transition from horizontal 2 scale pattern to vertical. 2. The deep sleep power is the consumed power when the panel controller is in deep sleep mode. 3. The listed electrical characteristics are only guaranteed under the controller & waveform provided by Waveshare. -
Page 13: Panel Ac Characteristics
2.9inch e-Paper (B) V4 User Manual 6.3 PANEL AC CHARACTERISTICS 6.3.1 MCU INTERFACE SELECTION The pin assignment at different interface mode is summarized in Table 6-4-1. Different MCU mode can be set by hardware selection on BS1 pins. The display panel only supports 4-wire SPI or 3-wire SPI interface mode. - Page 14 2.9inch e-Paper (B) V4 User Manual Figure 6-1: Write procedure in 4-wire SPI mode In the Read mode: 1. After driving CS# to low, MCU need to define the register to be read. 2. SDA is shifted into an 8-bit shift register on every rising edge of SCL in the order of D7, D6, ... D0 with D/C# keep low.
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Page 15: Mcu Serial Interface (3-Wire Spi)
2.9inch e-Paper (B) V4 User Manual 6.3.3 MCU SERIAL INTERFACE (3-WIRE SPI) The 3-wire serial interface consists of serial clock SCL, serial data SDA and CS#. This interface also supports Write mode and Read mode. 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. -
Page 16: Interface Timing
2.9inch e-Paper (B) V4 User Manual 6. Depending on register type, more than 1 byte can be read out. After all byte are read, CS# need to drive to high to stop the read operation. 6.3.4 INTERFACE TIMING The following specifications apply for: VSS=0V, VCI=3.0V, TOPR =25ºC. Changed diagram... - Page 17 2.9inch e-Paper (B) V4 User Manual Serial Interface Timing Characteristics (VCI - VSS = 2.2V to 3.7V, TOPR = 25°C, CL=20pF) 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 tCSHLD SCLK...
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Page 18: Command Table
2.9inch e-Paper (B) V4 User Manual 7. COMMAND TABLE... - Page 19 2.9inch e-Paper (B) V4 User Manual...
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Page 30: Optical Specification
2.9inch e-Paper (B) V4 User Manual 8. OPTICAL SPECIFICATION Measurements are made with that the illumination is under an angle of 45 degree, the detection is perpendicular unless otherwise specified. Symbol Parameter Conditions Typ. Units Notes White White Reflectivity Contrast Ratio Indoor 2 Grey Level DS+(WS-DS)*n(m-1) -
Page 31: Handling, Safety, And Environment Requirements
2.9inch e-Paper (B) V4 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 32: Reliability Test
2.9inch e-Paper (B) V4 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=40ºC, RH=35%, 240h Low-Temperature Operation 0ºC, 240h High Temperature T=40ºC , RH=80%, 240h... -
Page 33: Block Diagram
2.9inch e-Paper (B) V4 User Manual 11. BLOCK DIAGRAM... -
Page 34: Reference Circuit
2.9inch e-Paper (B) V4 User Manual 12. REFERENCE CIRCUIT... -
Page 35: Typical Operating Status
2.9inch e-Paper (B) V4 User Manual 13. TYPICAL OPERATING STATUS 13.1 NORMAL OPERATION FLOW... -
Page 36: Normal Operation Reference Program Code
2.9inch e-Paper (B) V4 User Manual 13.2 NORMAL OPERATION REFERENCE PROGRAM CODE... -
Page 37: Inspection Condition
2.9inch e-Paper (B) V4 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 30° surround. 14.3 INSPECT METHOD 14.4 DISPLAY AREA... -
Page 38: Inspection Standard
2.9inch e-Paper (B) V4 User Manual 14.5 INSPECTION STANDARD 14.5.1 ELECTRIC INSPECTION STANDARD Defect Item Standard Method Scope level Display complete Display Display uniform Visual Black/White spots D≤0.25mm, Allowed inspection 0.25mm<D≤0.4mm, N≤3,Distance≥5mm Zone A 0.4mm<D, Not Allow Visual/ Inspection card Black/White spots (No switch) L ≤0.6mm, W≤0.2mm, N≤1... -
Page 39: Appearance Inspection Standard
2.9inch e-Paper (B) V4 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 Dirty Allowed if can be removed Zone B... - Page 40 2.9inch e-Paper (B) V4 User Manual welding/Curl Allow, PCB Poor welding Not Allow PCB Curl≤1% Edge Adhesives height≤Display surface Edge adhesive seep in≤1/2 Margin width Edge Adhesives FPL tolerance±0.3mm height/FPL/Edge Edge adhesive bubble: bubble width≤1/2 adhesives bubble Margin width; Length≤0.5mm, n≤3 Surface scratch but not effect protect Visual Protect film...
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Page 41: Packing
2.9inch e-Paper (B) V4 User Manual 15. PACKING... -
Page 42: Precautions
2.9inch e-Paper (B) V4 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. (4) Please be mindful of moisture to avoid its penetration into the EPD panel, which may cause damage during operation.