EPAPER SPECIFICATIONS 2.7" e-Paper (B) SPEC NO REV NO H 3DSHU Display Specifications :DYHVKDUH (OHFWURQLFV Waveshare Electronics Room 813, Dynamic World Building, Zhenhua Rd, Futian District, Shenzhen China Website: www.waveshare.
.7" e-Paper (B) Product Specification Revision History Rev. Issued Date Revised Contents 1.0 Sep.10.2015 Preliminary 1.1 Oct.15.2015 1. In part 6: Delete command 70h. 1. In part 14: Add packing. 2. In part 5-1): Modify pin out list. 3. In part 7-5): Modify reference circuit. 4. In part 8: Modify typical operating sequence. 5. In part 11: Modify T=+40℃, RH=90% for 1000 hrs to T=+40℃, RH=80% for 240 hrs. 1.2 Ver 1.2 Nov.03.
2.7" e-Paper (B) Product Specification TECHNICAL SPECIFICATION CONTENTS Ver 1.2 NO.
2.7" e-Paper (B) Product Specification 1. Over View The display is a TFT active matrix electrophoretic display, with interface and a reference system design. The 2.7” active area contains 264×176 pixels, and has 1-bit white/black and 1-bit red 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.
2.7" e-Paper (B) Product Specification 1 24 Detal B Scale 2/1 4. Mechanical Drawing of EPD module Ver 1.
2.7" e-Paper (B) Product Specification 5.
2.7" e-Paper (B) Product Specification Note 5-3: This pin (RST_N) is reset signal input. The Reset is active Low. Note 5-4: This pin (BUSY_N) is BUSY_N state output pin. When BUSY_N is Low the operation of chip should not be interrupted and any commands should not be issued to the module.
2.7" e-Paper (B) Product Specification 6.
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2.7" e-Paper (B) Product Specification (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 LUT_EN BWR UD SHL SHD_N RST_N RES[1:0]: Display resolution setting (source×gate) 00b: 320×300 (default) 01b: 300×200 10b: 296×160 11b: 296×128 LUT_EN: LUT selection setting. 0: Using LUT from OTP. (default) 1: Using LUT from register. BWR: Color selecting setting. 0: Pixel with B/W/Red. Run both LU1 and LU2.
2.7" e-Paper (B) Product Specification VDG_EN: Gate power selection 0: External VDNS power from VGH/VGL pins. (VDNG_EN open) 1: Internal DC/DC function for generate VGH/VGL. VCOM_HV: VCOM Voltage Level 0: VCOMH=VDH+VCOMDC, VCOML=VHL+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.
2.7" e-Paper (B) Product Specification (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. After the Power Off command, BUSY_N signal will drop from high to low. When finish the power off sequence, BUSY_N signal will rise from low to high.
2.7" e-Paper (B) Product Specification 000b: 0.27uS 001b: 0.34uS 010b: 0.40uS 011b: 0.54uS 100b: 0.80uS 101b: 1.54uS 110b: 3.34uS 111b: 6.58uS BTPHB[7:6]: Soft start period of phase B. 01b: 20mS 00b: 10mS 10b: 30mS 11b: 100mS 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.
2.7" e-Paper (B) Product Specification 1: Driver has already received all the one-frame data (DTM1 and DTM2). After “Data Start” (10h) or “Data Stop” (11h) commands and when data_flag=1, BUSY_N signal will become “0” and the refreshing of panel starts. This command only actives when BUSY_N = “1”.
2.7" e-Paper (B) Product Specification In B/W/Red mode, this command writes “B/W” data to SRAM. Partial update location and area Note: X and W should be the multiple of 8.
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2.7" e-Paper (B) Product Specification (21) PLL Control (R30H) Action Controlling PLL W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 1 1 0 0 0 0 0 1 - SEL_DIV[1:0] SEL_F[4:0] The command controls the PLL clock frequency. The PLL structure must support the following frame rates: Ver 1.2 .
2.7" e-Paper (B) Product Specification (22) Temperature Sensor Calibration (R40H) Action Sensing Temperature W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 1 0 0 0 0 0 0 1 1 D10 D9/TS6 D8/TS5 D7/TS4 D6/TS3 D5/TS2 D4/TS1 D3/TS0 1 1 D2 D1 D0 - - - - - This command reads the temperature sensed by the temperature sensor. TS[7:0]: When TSE (R41h) is set to 0, this command reads internal temperature sensor value.
2.7" e-Paper (B) Product Specification WLSB[7:0]: LSByte of write-data to external temperature sensor. This command only actives after R04H(PON) or R05H(PMES). (25) Temperature Sensor Read (TSR) Action Read External Temperature Sensor (R43H) W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 1 0 0 0 0 1 1 1 1 RMSB[7:0] 1 1 RLSB[7:0] This command reads the temperature sensed by the temperature sensor. RMSB[7:0]: MSByte read data from external temperature sensor.
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2.7" e-Paper (B) Product Specification (28) TCON Setting (TCON) (R60H) Action Set Gate/Source Non-overlap Period W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 1 0 1 0 0 0 0 0 1 S2G[3:0] G2S[3:0] This command defines non-overlap period of Gate and Source.
2.7" e-Paper (B) Product Specification 1. S_Start [8:0]: which source output line is the first date line 2. G_Start[8:0]: which gate line is the first scan line 3. gscan: Gate scan select 0: Normal scan 1: Cascade type 2 scan (31) Get status (R71H) Action Read Flags W/R C/D D7 D6 0 0 0 1 1 1 - - D5 D4 D3 D2 D1 D0 1 0 0 0 1 I C_BUSY_N Data_flag PON POF BUSY_N 1 2 2 I C_ERR This command reads the IC status. I2C_ERR: I2C master error status.
2.7" e-Paper (B) Product Specification This command gets the Vcom value. VV[5:0]: Vcom Value Output VV[5:0] Vcom value 000 0000b -0.10 V 000 0001b -0.15 V 000 0010b -0.20 V : : 100 1110b -4.00 V (34) VCOM-DC Setting (R82H) Action W/R C/D D7 D6 D5 D4 D3 D2 D1 D0 0 0 1 0 0 0 0 0 1 0 0 1 - Set VCM_DC VDCS[6:0] This command sets VCOM_DC value. VDCS[5:0]: VCOM_DC Setting VDCS[6:0] VCOM_DC Value 000 0000b -0.1V(default) 000 0001b -0.15V 000 0010b -0.2v .. ..
2.7" e-Paper (B) Product Specification (37) 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.
2.7" e-Paper (B) Product Specification 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 + 40 ℃ Storage Temp. range TSTG -25 to + 60 ℃ 7-2) Panel DC Characteristics The following specifications apply for: VSS = 0V, VCI = 3.
2.7" e-Paper (B) Product Specification 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 BS pins.
2.7" e-Paper (B) Product Specification 7-3-2-2) MCU Serial Interface (4-wire SPI) The 4-wire SPI consists of serial clock SCL, serial data SDA, DC, CSB. In SPI mode, D0 acts as SCL, D1 acts as SDA. Function CSB DC SCL 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 SDA is shifted into an 8-bit shift register in the order of D7, D6, ... D0.
2.7" e-Paper (B) Product Specification 7-3-2-3) MCU Serial Interface (3-wire SPI) The 3-wire serial interface consists of serial clock SCL, serial data SDA and CSB. In 3-wire SPI mode, D0 acts as SCL, D1 acts as SDA, The pin DC can be connected to an external ground. The operation is similar to 4-wire serial interface while DC pin is not used. There are altogether 9-bits will be shifted into the shift register on every ninth clock in sequence: DC bit, D7 to D0 bit.
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2.7" e-Paper (B) Product Specification 7-4) Power Consumption Parameter Symbol Conditions TYP Max Unit Remark Panel power consumption during update - 25℃ TBD TBD mW - Power consumption in standby mode - 25℃ - TBD mW - 7-5) Reference Circuit Figure . 7-5 (1) Ver 1.2 .
2.7" e-Paper (B) Product Specification Figure . 7-5 (2) Ver 1.2 .
2.7" e-Paper (B) Product Specification 8. Typical Operating Sequence 8-1) Normal Operation Flow 1. BWR mode & LUT from Register System Power Reset the EPD driver IC Booster soft start Power optimization Reset DFV_EN Power setting Power on Panel setting PLL control Resolution setting Load image data Display refresh Border floating Turn off Enter into deep sleep mode Ver 1.2 33 / 43 .
2.7" e-Paper (B) Product Specification 2. BWR mode & LUT from OTP System Power Reset the EPD driver IC Booster soft start Power optimization Reset DFV_EN Power on Panel setting Load image data Display refresh Border floating Turn off Enter into deep sleep mode Ver 1.2 34 / 43 .
2.7" e-Paper (B) Product Specification 8-2) Reference Program Code 1.
2.7" e-Paper (B) Product Specification 2.
2.7" e-Paper (B) Product Specification 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.
2.7" e-Paper (B) Product Specification 9-3) Reflection Ratio The reflection ratio is expressed as: R = Reflectance Factor white board × (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.
2.7" e-Paper (B) Product Specification 10. HANDLING，SAFETY AND ENVIROMENTAL 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.
2.7" e-Paper (B) Product Specification 11. Reliability test TEST 1 High-Temperatu re Operation CONDITION T =40℃, RH=35% 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.
2.7" e-Paper (B) Product Specification pattern will be adjusted to 60℃,RH=35% and storage period performance is 30 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.
2.7" e-Paper (B) Product Specification 12. Point and line standard Shipment Inseption Standard Part-A：Active area Part-B：Border area Equipment：Electrical test fixture, Point gauge Outline dimension： 64.0(H)×42.9(V) ×1.18(D) Unit：mm Temperature Environment Name Spot 23±2℃ Humidity Illuminance 55± 1200～ 5%RH 1500Lux Air bubble Time 300 mm 35 Sec Causes Spot size Part-A B/W spot in glass or D ≤ 0.25mm Ignore protection sheet, 0.25mm ＜ D ≤ 0.4mm 0.4mm ＜ D foreign mat.
2.7" e-Paper (B) Product Specification 13. Packing empty tra y vacuum bag PE foam PE foam foam 2nd layer 1st layer EPD EPD carton full tra y full tray total 12 layer tape 15(PCS)×12(Layer)=180PCS Protector Pallet PP belt 180(PCS)×16(BOX)=2880PCS Ver 1.2 43 / 43 .
