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ST7703 Data Sheet TFT Mobile Single Chip Driver For 720RGB x 1280 dot, a-Si TFT LCD, 16.7M color With MIPI Interface Version 01 Preliminary October 2015
a-Si TFT LCD Single Chip Driver 720RGB x 1280 dot with 16.7M color ST7703 List of Contents 1. General Description .................................................................................................................................. 8 2. Features ..................................................................................................................................................... 9 3. Block Diagram ......................................................................................................................................... 10 4. Pin Description ........................................................................................................................................ 11 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 Power Supply Pins ........................................................................................................................... 11 Interface Logic Pins .......................................................................................................................... 11 MIPI Interface Pins ........................................................................................................................... 11 Driver Output Pins ............................................................................................................................ 12 DC/DC Converter Pins ..................................................................................................................... 12 CABC Control Pins ........................................................................................................................... 12 Test Pins ........................................................................................................................................... 13 BOM ................................................................................................................................................. 14 5. Function Description .............................................................................................................................. 15 5.1 5.2 5.3 5.4 5.5 5.2.1 5.2.2 5.1.1 5.1.2 5.1.3 SPI Interface ..................................................................................................................................... 15 SPI Interface Write Mode......................................................................................................... 15 SPI Interface Read Mode ........................................................................................................ 16 Break and Pause Sequences .................................................................................................. 17 MIPI Interface ................................................................................................................................... 19 DSI General Interface Communication .................................................................................... 20 DSI Packet Level Communication ........................................................................................... 31 Inversion ........................................................................................................................................... 44 Gamma Function .............................................................................................................................. 46 Gamma Characteristic Correction Function ............................................................................ 47 Gray Voltage Generator for Digital Gamma Correction ........................................................... 48 Sleep Out - command and Self-diagnostic Functions of the display module ................................... 50 Register Loading Detection ..................................................................................................... 50 Functionality Detection ............................................................................................................ 51 Power on/off Sequence .................................................................................................................... 52 Case 1: RESX line is held high or unstable by host at power on ............................................ 53 Case 2: RESX line is held low by host at power on ................................................................ 54 Power Levels Definition .................................................................................................................... 55 Reset function .................................................................................................................................. 56 Standard Command Default Value .......................................................................................... 56 Input Pins ................................................................................................................................. 57 Output or Bi-directional Pins .................................................................................................... 57 OTP Sequence ................................................................................................................................. 58 OTP Sequence ........................................................................................................................ 58 OTP Standard Programming Table .......................................................................................... 59 5.10 CABC................................................................................................................................................ 60 5.8.1 5.8.2 5.8.3 5.9.1 5.9.2 5.4.1 5.4.2 5.5.1 5.5.2 5.6.1 5.6.2 5.6 5.7 5.8 6. Command Description ............................................................................................................................ 62 5.9 6.1 6.2 Command Table ............................................................................................................................... 62 Command description ...................................................................................................................... 79 NOP (00h) ................................................................................................................................ 79 Software reset (01h) ................................................................................................................ 80 Read Display ID (04h) ............................................................................................................. 81 Read Display Power Mode (0Ah) ............................................................................................ 82 Read Display MADCTR (0Bh) ................................................................................................. 83 Read Display Pixel Format (0Ch) ............................................................................................ 84 Read Display Image Mode (0Dh) ............................................................................................ 85 Read Display Signal Mode (0Eh) ............................................................................................ 86 Read Display Self-Diagnostic Result (0Fh) ............................................................................. 87 Sleep In (10h) .......................................................................................................................... 88 Sleep Out (11h) ........................................................................................................................ 89 2/ 196 6.2.1 6.2.2 6.2.3 6.2.4 6.2.5 6.2.6 6.2.7 6.2.8 6.2.9 6.2.10 6.2.11 This information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. Version 01
a-Si TFT LCD Single Chip Driver 720RGB x 1280 dot with 16.7M color ST7703 6.2.12 Normal Display Mode On (13h) ............................................................................................... 91 6.2.13 Display Inversion Off (20h) ...................................................................................................... 92 6.2.14 Display Inversion On (21h) ...................................................................................................... 93 6.2.15 All Pixel Off (22h) ..................................................................................................................... 94 6.2.16 All Pixel On (23h) ..................................................................................................................... 95 6.2.17 Display Off (28h) ...................................................................................................................... 96 6.2.18 Display On (29h) ...................................................................................................................... 97 6.2.19 Memory Access Control (36h) ................................................................................................. 98 6.2.20 Idle Mode Off (38h) .................................................................................................................. 99 6.2.21 Idle Mode On (39h) ................................................................................................................ 100 6.2.22 Write Display Brightness (51h) .............................................................................................. 102 6.2.23 Read Display Brightness (52h) .............................................................................................. 103 6.2.24 Write CTRL Display (53h) ...................................................................................................... 104 6.2.25 Read CTRL Display Value (54h) ............................................................................................ 105 6.2.26 Write Content Adaptive Brightness Control (55h) .................................................................. 106 6.2.27 Read Content Adaptive Brightness Control (56h) ................................................................. 107 6.2.28 Write CABC Minimum Brightness (5Eh) ................................................................................ 108 6.2.29 Read CABC minimum brightness (5Fh) ................................................................................ 109 Read Black/White Low Bits (70h) .......................................................................................... 110 6.2.30 Read Bkx (71h) ....................................................................................................................... 111 6.2.31 Read Bky (72h) ...................................................................................................................... 112 6.2.32 Read Wx (73h) ....................................................................................................................... 113 6.2.33 6.2.34 Read Wy (74h) ....................................................................................................................... 114 Read Red/Green Low Bits (75h) ........................................................................................... 115 6.2.35 Read Rx (76h) ....................................................................................................................... 116 6.2.36 Read Ry (77h) ....................................................................................................................... 117 6.2.37 6.2.38 Read Gx (78h) ....................................................................................................................... 118 Read Gy (79h) ....................................................................................................................... 119 6.2.39 Read Blue/AColor Low Bits (7Ah) ......................................................................................... 120 6.2.40 Read Bx (7Bh) ....................................................................................................................... 121 6.2.41 6.2.42 Read By (7Ch) ....................................................................................................................... 122 Read Ax (7Dh) ....................................................................................................................... 123 6.2.43 Read Ay (7Eh) ....................................................................................................................... 124 6.2.44 Read DDB Start (A1h) ........................................................................................................... 125 6.2.45 Read DDB Continue (A8h) .................................................................................................... 127 6.2.46 6.2.47 Read ID1 Value (DAh) ........................................................................................................... 128 Read ID2 Value (DBh) ........................................................................................................... 129 6.2.48 Read ID3 Value (DCh) ........................................................................................................... 130 6.2.49 SETEXTC (B9h) .................................................................................................................... 131 6.2.50 6.2.51 SETDISP (B2h) ...................................................................................................................... 132 SETRGBIF (B3h) ................................................................................................................... 134 6.2.52 SETCYC (B4h) ...................................................................................................................... 135 6.2.53 SETBGP (B5h) ...................................................................................................................... 136 6.2.54 6.2.55 SETVCOM (B6h) ................................................................................................................... 137 SETOTP (B7h) ....................................................................................................................... 140 6.2.56 SETPOWER_EXT (B8h) ....................................................................................................... 142 6.2.57 SETMIPI (BAh) ...................................................................................................................... 144 6.2.58 SETVDC (BCh) ...................................................................................................................... 146 6.2.59 6.2.60 SETSCR (C0h) ...................................................................................................................... 147 SETPOWER (C1h) ................................................................................................................ 149 6.2.61 SETID (C3h) .......................................................................................................................... 152 6.2.62 SETDDB (C4h) ...................................................................................................................... 152 6.2.63 6.2.64 SETIO (C7h) .......................................................................................................................... 153 SETCABC (C8h) .................................................................................................................... 154 6.2.65 SETPANEL (CCh) .................................................................................................................. 154 6.2.66 DGC_R (CDh) ........................................................................................................................ 155 6.2.67 6.2.68 DGC_G (CEh) ........................................................................................................................ 156 DGC_B (CFh) ........................................................................................................................ 157 6.2.69 6.2.70 SETGAMMA (E0h)................................................................................................................. 158 This information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 3/ 196 Version 01
a-Si TFT LCD Single Chip Driver 720RGB x 1280 dot with 16.7M color ST7703 6.2.71 6.2.72 6.2.73 6.2.74 6.2.75 6.2.76 6.2.77 6.2.78 SETEQ (E3h) ......................................................................................................................... 159 SETCOLOREN (E4h) ............................................................................................................ 161 SETCOLOREN (E5h) ............................................................................................................ 162 SETGIP1 (E9h) ...................................................................................................................... 163 SETGIP2 (EAh) ..................................................................................................................... 170 SETCOLOR (EBh) ................................................................................................................. 173 TEMP_SENSOR (F1h) .......................................................................................................... 174 TEMP_VOLTAGE (F2h) ......................................................................................................... 176 7. Electrical Characteristics ..................................................................................................................... 177 7.1 7.2 7.3 Absolute maximum ratings ............................................................................................................. 177 DC characteristics .......................................................................................................................... 178 Basic Characteristics ............................................................................................................. 178 DSI DC Characteristics .......................................................................................................... 179 AC characteristics .......................................................................................................................... 181 Serial Interface Characteristics .............................................................................................. 181 DSI Interface Timing Characteristics ..................................................................................... 182 Reset input timing .................................................................................................................. 186 7.2.1 7.2.2 7.3.1 7.3.2 7.3.3 8. Reference Application .......................................................................................................................... 187 Interface.......................................................................................................................................... 187 Connections with Panel .................................................................................................................. 188 DC/DC Converter ........................................................................................................................... 189 External Power IC Mode - FL1002 ........................................................................................ 189 PFM Mode - Type C ............................................................................................................... 190 Three-Power Mode ................................................................................................................ 191 DSI Power On/Off Timing ............................................................................................................... 192 Power On Timing of External Power IC ................................................................................. 192 Power Off Timing of External Power IC ................................................................................. 193 Power On Timing of 3-Power Mode ....................................................................................... 194 Power Off Timing of 3-Power Mode ....................................................................................... 195 Maximum Layout Resistance ......................................................................................................... 196 8.3.1 8.3.2 8.3.3 8.4.1 8.4.2 8.4.3 8.4.4 8.1 8.2 8.3 8.4 8.5 This information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 4/ 196 Version 01
a-Si TFT LCD Single Chip Driver 720RGB x 1280 dot with 16.7M color ST7703 List of Figures Figure 5.1: DBI Type C interface Option 1 write mode .................................................................. 15 Figure 5.2: DBI Type C interface Option 1 read mode ................................................................... 16 Figure 5.3: Driver IC data transfer recovery ................................................................................... 17 Figure 5.4: Break during parameter ............................................................................................... 17 Figure 5.5: Driver IC data transfer pause ....................................................................................... 18 Figure 5.6: DSI Clock Lane State Diagram .................................................................................... 20 Figure 5.7: From ULPM to LPM ..................................................................................................... 21 Figure 5.8: From High Speed Clock mode to LPM ........................................................................ 21 Figure 5.9: From LPM mode to ULPM ........................................................................................... 21 Figure 5.10: From LPM mode to HSCM ......................................................................................... 22 Figure 5.11: Switching the Clock Lane between HSCM and LPM ................................................. 22 Figure 5.12: DSI Data Lane D0 State Diagram .............................................................................. 23 Figure 5.13: DSI Data Lane D0 general escape mode sequence ................................................. 23 Figure 5.14: DSI Data Lane D0 LPDT sequence ........................................................................... 24 Figure 5.15: DSI Data Lane D0 ULPS sequence ........................................................................... 25 Figure 5.16: DSI Data Lane D0 RAR sequence ............................................................................ 26 Figure 5.17: DSI Data Lane D0 TEE sequence ............................................................................. 27 Figure 5.18: DSI Data Lane D0 ACK sequence ............................................................................. 28 Figure 5.19: DSI Data Lane Entering High Speed Data Transmission .......................................... 29 Figure 5.20: DSI Data Lane Entering High Speed Data Transmission .......................................... 29 Figure 5.21: DSI Bus Turn Around Procedure ............................................................................... 30 Figure 5.22: DSI multiple HS transmission packets ....................................................................... 31 Figure 5.23: Structure of the short packet ...................................................................................... 32 Figure 5.24: Structure of the long packet ....................................................................................... 32 Figure 5.25: Format of data ID ....................................................................................................... 33 Figure 5.26: 16-bit RGB Color Format, Long packet ..................................................................... 38 Figure 5.27: Source channels of ZigZag inversion mode .............................................................. 45 Figure 5.28: Gamma adjustments different of source driver with digital gamma correction .......... 46 Figure 5.29: Block diagram of digital gamma correction ................................................................ 48 Figure 5.30: Sleep out flow chart–command and self-diagnostic functions ................................... 50 Figure 5.31: Sleep out flow chart internal function detection ......................................................... 51 Figure 5.32: The power supply ON/OFF setting for Display ON/OFF and Sleep In/out ................ 52 Figure 5.33: Case 1: RESX line is held high or unstable by host at power on .............................. 53 Figure 5.34: Case 2: RESX line is held low by host at power on ................................................... 54 Figure 5.35: Power flow chart for different power modes .............................................................. 55 Figure 5.36: Two kinds of CABC Architecture ................................................................................ 60 Figure 7.1: Input glitch rejections of low-power receivers ............................................................ 179 Figure 7.2: Differential voltage range and Command mode voltage ........................................... 180 Figure 7.3: Serial Interface Characteristics .................................................................................. 181 Figure 7.4: DSI clock timing Characteristics ................................................................................ 182 Figure 7.5: Rising and falling time on clock and data channel ..................................................... 182 Figure 7.6: BTA from HOST to Display Module Timing ................................................................ 183 Figure 7.7: BTA from Display Module Timing to HOST ................................................................ 183 Figure 7.8: Reset input timing ...................................................................................................... 186 Figure 8.1: Interfacing for MIPI by Setting Lane [1:0]=”11” .......................................................... 187 Figure 8.2: Source Pin Connection for Panel ............................................................................... 188 Figure 8.3: Using External Power IC Application ......................................................................... 189 Figure 8.4: Using PFM - Type C Application ................................................................................ 190 Figure 8.5: Using Three Power Mode Application ........................................................................ 191 Figure 8-6: DSI Power On Sequence of Power IC Mode ............................................................. 192 Figure 8-7: DSI Power Off Sequence of Power IC Mode ............................................................. 193 Figure 8-8: DSI Power On Sequence of 3 Power Mode .............................................................. 194 Figure 8-9: DSI Power Off Sequence of 3 Power Mode .............................................................. 195 This information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 5/ 196 Version 01
a-Si TFT LCD Single Chip Driver 720RGB x 1280 dot with 16.7M color ST7703 List of Tables Table 4-1: BOM of Power IC Mode ................................................................................................ 14 Table 4-2: BOM of 3 Power Mode ................................................................................................ 14 Table 5.1: DBI TYPE-C Serial Interface Selection Table ................................................................ 15 Table 5.2: MIPI Interface Configuration .......................................................................................... 19 Table 5.3: Lane State Description .................................................................................................. 20 Table 5.4: Data Lane D0 Operation Modes .................................................................................... 23 Table 5.5: Escape Mode Commands ............................................................................................. 24 Table 5.6: Data Types from Host to the Driver IC .......................................................................... 34 Table 5.7: Data Types from the Driver IC to Host .......................................................................... 34 Table 5.8: Standard Command Default Value ................................................................................ 56 Table 5.9: Characteristics of Input Pins .......................................................................................... 57 Table 5.10: Characteristics of Output or Bi-direction Pins .............................................................. 57 Table 7.1: Absolute Maximum Ratings ......................................................................................... 177 Table 7.2: Serial Interface Characteristics .................................................................................... 181 Table 7.3: DSI High Speed Mode Characteristics ........................................................................ 182 Table 7.4: DSI Low Power Mode Characteristics ......................................................................... 183 Table 7.5: DSI Low Power Mode to High Speed Mode Timing .................................................... 184 Table 7.6: DSI Low Power Mode to High Speed Mode Timing .................................................... 184 Table 7.7: Clock Lanes High Speed Mode to/from Low Power Mode Timing .............................. 185 Table 7.8: Reset Input Timing ....................................................................................................... 186 Table 8-1: DSI Power On Timing of Power IC Mode .................................................................... 192 Table 8-2: DSI Power Off Timing of Power IC Mode .................................................................... 193 Table 8-3: DSI Power On Timing of 3 Power Mode ..................................................................... 194 Table 8-4: DSI Power Off Timing of 3 Power Mode...................................................................... 195 Table 8-5: Maximum Layout Resistance ...................................................................................... 196 This information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 6/ 196 Version 01
a-Si TFT LCD Single Chip Driver 720RGB x 1280 dot with 16.7M color ST7703 Revision History Version 01 Date Description of Changes 2015/10/05 1. New setup This information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 7/ 196 Version 01
a-Si TFT LCD Single Chip Driver 720RGB x 1280 dot with 16.7M color ST7703 1. General Description The ST7703 is a single-chip solution for a-Si TFT LCD that combines a source driver, power supply circuit to drive a-Si TFT dot matrix LCD with 720RGBx1280 dots at maximum. The ST7703 supports MIPI Interface. The ST7703 incorporates step-up and voltage follower circuits to generate drive voltage required for a-Si TFT and gate in panel (GIP) which including a dynamic backlight control function to control backlight brightness depending on image data, reducing power consumption at the backlight with the slightest influence on image quality. The ST7703 is suitable for small or medium-sized portable mobile solutions requiring long-term driving capabilities, such as digital mobile phones, PDAs and Smartphones. This information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 8/ 196 Version 01
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