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ILI9331DS_V0.10__ID9331.pdf
ILI9331
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K Color
Datasheet
Version: V0.010
Document No.: ILI9331DS_V0.10.pdf
ILI TECHNOLOGY CORP.
8F, No.38, Taiyuan St., Jhubei City, Hsinchu County 302,
Taiwan, R.O.C
Tel.886-3-5600099; Fax.886-3-5600055
http://www.ilitek.com
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9331
Table of Contents
7.1.
7.2.
Section Page
1.
Introduction.................................................................................................................................................... 7
2. Features ........................................................................................................................................................ 8
3. Block Diagram............................................................................................................................................. 10
4. Pin Descriptions .......................................................................................................................................... 11
5. Pad Arrangement and Coordination............................................................................................................ 15
6. Block Description ........................................................................................................................................ 25
7. System Interface ......................................................................................................................................... 27
Interface Specifications .................................................................................................................. 27
Input Interfaces .............................................................................................................................. 28
7.2.1.
i80/18-bit System Interface.................................................................................................. 29
i80/16-bit System Interface.................................................................................................. 30
7.2.2.
7.2.3.
i80/9-bit System Interface.................................................................................................... 31
i80/8-bit System Interface.................................................................................................... 31
7.2.4.
7.3. Serial Peripheral Interface (SPI) .................................................................................................... 33
7.4. VSYNC Interface............................................................................................................................ 37
7.5. RGB Input Interface ....................................................................................................................... 41
7.5.1. RGB Interface...................................................................................................................... 42
7.5.2. RGB Interface Timing .......................................................................................................... 43
7.5.3. Moving Picture Mode........................................................................................................... 45
7.5.4. 6-bit RGB Interface.............................................................................................................. 46
7.5.5. 16-bit RGB Interface............................................................................................................ 47
7.5.6. 18-bit RGB Interface............................................................................................................ 47
7.6. MDDI (Mobile Display Digital Interface) ......................................................................................... 50
7.6.1.
ILI9331 MDDI Specifications ............................................................................................... 50
7.6.2. MDDI Link Protocol (Packets Supported by the ILI9331).................................................... 51
7.6.3. MDDI Instruction Setting...................................................................................................... 58
7.7.
Interface Timing.............................................................................................................................. 63
7.8. CABC (Content Adaptive Brightness Control) ............................................................................... 64
8. Register Descriptions .................................................................................................................................. 65
8.1. Registers Access............................................................................................................................ 65
Instruction Descriptions.................................................................................................................. 68
8.2.
8.2.1.
Index (IR)............................................................................................................................. 71
8.2.2.
ID code (R00h) .................................................................................................................... 71
8.2.3. Driver Output Control (R01h) .............................................................................................. 71
8.2.4. LCD Driving Wave Control (R02h) ...................................................................................... 73
8.2.5. Entry Mode (R03h) .............................................................................................................. 73
8.2.6. Display Control 1 (R07h) ..................................................................................................... 75
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Version: 0.010
Page 2 of 134
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9331
8.2.7. Display Control 2 (R08h) ..................................................................................................... 76
8.2.8. Display Control 3 (R09h) ..................................................................................................... 77
8.2.9. Display Control 4 (R0Ah)..................................................................................................... 78
8.2.10. RGB Display Interface Control 1 (R0Ch)............................................................................. 78
8.2.11. Frame Marker Position (R0Dh) ........................................................................................... 79
8.2.12. RGB Display Interface Control 2 (R0Fh)............................................................................. 80
8.2.13. Power Control 1 (R10h)....................................................................................................... 80
8.2.14. Power Control 2 (R11h) ....................................................................................................... 82
8.2.15. Power Control 3 (R12h)....................................................................................................... 82
8.2.16. Power Control 4 (R13h)....................................................................................................... 83
8.2.17. GRAM Horizontal/Vertical Address Set (R20h, R21h) ........................................................ 84
8.2.18. Write Data to GRAM (R22h)................................................................................................ 84
8.2.19. Read Data from GRAM (R22h) ........................................................................................... 84
8.2.20. Power Control 7 (R29h)....................................................................................................... 87
8.2.21. Frame Rate and Color Control (R2Bh)................................................................................ 87
8.2.22. Gamma Control (R30h ~ R3Dh).......................................................................................... 88
8.2.23. Horizontal and Vertical RAM Address Position (R50h, R51h, R52h, R53h) ....................... 88
8.2.24. Gate Scan Control (R60h, R61h, R6Ah) ............................................................................. 90
8.2.25. Partial Image 1 Display Position (R80h).............................................................................. 92
8.2.26. Partial Image 1 RAM Start/End Address (R81h, R82h)....................................................... 92
8.2.27. Partial Image 2 Display Position (R83h).............................................................................. 92
8.2.28. Partial Image 2 RAM Start/End Address (R84h, R85h)....................................................... 92
8.2.29. Panel Interface Control 1 (R90h)......................................................................................... 93
8.2.30. Panel Interface Control 2 (R92h)......................................................................................... 93
8.2.31. Panel Interface Control 4 (R95h)......................................................................................... 93
8.2.32. Panel Interface Control 5 (R97h)......................................................................................... 94
8.2.33. OTP VCM Programming Control (RA1h) ............................................................................ 94
8.2.34. OTP VCM Status and Enable (RA2h) ................................................................................. 94
8.2.35. OTP Programming ID Key (RA5h) ...................................................................................... 95
8.2.36. Write Display Brightness Value (RB1h)............................................................................... 95
8.2.37. Read Display Brightness Value (RB2h)............................................................................... 95
8.2.38. Write CTRL Display Value (RB3h)....................................................................................... 95
8.2.39. Read CTRL Display Value (RB4h) ...................................................................................... 96
8.2.40. Write Content Adaptive Brightness Control Value (RB5h) .................................................. 96
8.2.41. Read Content Adaptive Brightness Control Value (RB6h) .................................................. 97
8.2.42. Write CABC Minimum Brightness (RBEh)........................................................................... 97
8.2.43. Read CABC Minimum Brightness (RBFh)........................................................................... 98
8.2.44. CABC Control 1 (RC8h) ...................................................................................................... 98
8.2.45. CABC Control 2 (RC9h) .................................................................................................... 100
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Version: 0.010
Page 3 of 134
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9331
8.2.46. CABC Control 3 (RCAh).................................................................................................... 101
8.2.47. CABC Control 4 (RCBh).................................................................................................... 102
8.2.48. CABC Control 5 (RCCh).................................................................................................... 103
8.2.49. CABC Control 6 (RCDh).................................................................................................... 104
8.2.50. CABC Control 7 (RCEh).................................................................................................... 105
9. OTP Programming Flow............................................................................................................................ 106
10. GRAM Address Map & Read/Write........................................................................................................... 107
11. Window Address Function......................................................................................................................... 112
12. Gamma Correction.................................................................................................................................... 113
13. Application................................................................................................................................................. 121
13.1. Configuration of Power Supply Circuit ......................................................................................... 121
13.2. Display ON/OFF Sequence ......................................................................................................... 121
13.3. Standby and Sleep Mode............................................................................................................. 123
13.4. Power Supply Configuration ........................................................................................................ 124
13.5. Voltage Generation ...................................................................................................................... 125
13.6. Applied Voltage to the TFT panel................................................................................................. 126
13.7. Partial Display Function ............................................................................................................... 126
14. Electrical Characteristics........................................................................................................................... 128
14.1. Absolute Maximum Ratings ......................................................................................................... 128
14.2. DC Characteristics ....................................................................................................................... 129
14.3. Reset Timing Characteristics ....................................................................................................... 129
14.4. AC Characteristics ....................................................................................................................... 130
14.4.1. i80-System Interface Timing Characteristics..................................................................... 130
14.4.2. Serial Data Transfer Interface Timing Characteristics....................................................... 131
14.4.3. RGB Interface Timing Characteristics ............................................................................... 131
15. Revision History ........................................................................................................................................ 133
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Version: 0.010
Page 4 of 134
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9331
Figures
FIGURE1 SYSTEM INTERFACE AND RGB INTERFACE CONNECTION.................................................................................... 28
FIGURE2 18-BIT SYSTEM INTERFACE DATA FORMAT ......................................................................................................... 29
FIGURE3 16-BIT SYSTEM INTERFACE DATA FORMAT ......................................................................................................... 30
FIGURE4 9-BIT SYSTEM INTERFACE DATA FORMAT ........................................................................................................... 31
FIGURE5 8-BIT SYSTEM INTERFACE DATA FORMAT ........................................................................................................... 32
FIGURE 6 DATA FORMAT OF SPI INTERFACE..................................................................................................................... 34
FIGURE7 DATA TRANSMISSION THROUGH SERIAL PERIPHERAL INTERFACE (SPI) ............................................................... 35
FIGURE8 DATA TRANSMISSION THROUGH SERIAL PERIPHERAL INTERFACE (SPI), TRI=”1” AND DFM=”10”).................... 36
FIGURE9 DATA TRANSMISSION THROUGH VSYNC INTERFACE)......................................................................................... 37
FIGURE10 MOVING PICTURE DATA TRANSMISSION THROUGH VSYNC INTERFACE ............................................................ 37
FIGURE11 OPERATION THROUGH VSYNC INTERFACE....................................................................................................... 38
FIGURE12 TRANSITION FLOW BETWEEN VSYNC AND INTERNAL CLOCK OPERATION MODES ............................................ 40
FIGURE13 RGB INTERFACE DATA FORMAT ...................................................................................................................... 41
FIGURE14 GRAM ACCESS AREA BY RGB INTERFACE ..................................................................................................... 42
FIGURE15 TIMING CHART OF SIGNALS IN 18-/16-BIT RGB INTERFACE MODE.................................................................. 43
FIGURE16 TIMING CHART OF SIGNALS IN 6-BIT RGB INTERFACE MODE ............................................................................ 44
FIGURE17 EXAMPLE OF UPDATE THE STILL AND MOVING PICTURE.................................................................................... 45
FIGURE18 INTERNAL CLOCK OPERATION/RGB INTERFACE MODE SWITCHING ................................................................... 48
FIGURE19 GRAM ACCESS BETWEEN SYSTEM INTERFACE AND RGB INTERFACE .............................................................. 49
FIGURE20 MDDI ARCHITECTURE...................................................................................................................................... 50
FIGURE21 RELATIONSHIP BETWEEN RGB I/F SIGNALS AND LCD DRIVING SIGNALS FOR PANEL ..................................... 63
FIGURE22 REGISTER SETTING WITH SERIAL PERIPHERAL INTERFACE (SPI)...................................................................... 65
FIGURE23 REGISTER SETTING WITH I80 SYSTEM INTERFACE ............................................................................................ 66
FIGURE 24 REGISTER READ/WRITE TIMING OF I80 SYSTEM INTERFACE ........................................................................... 67
FIGURE25 GRAM ACCESS DIRECTION SETTING ............................................................................................................... 73
FIGURE26 16-BIT MPU SYSTEM INTERFACE DATA FORMAT............................................................................................. 74
FIGURE27 8-BIT MPU SYSTEM INTERFACE DATA FORMAT............................................................................................... 75
FIGURE 28 DATA READ FROM GRAM THROUGH READ DATA REGISTER IN 18-/16-/9-/8-BIT INTERFACE MODE.............. 85
FIGURE 29 GRAM DATA READ BACK FLOW CHART ........................................................................................................ 86
FIGURE 30 GRAM ACCESS RANGE CONFIGURATION ........................................................................................................ 89
FIGURE31 GRAM READ/WRITE TIMING OF I80-SYSTEM INTERFACE ............................................................................. 107
FIGURE32 I80-SYSTEM INTERFACE WITH 18-/16-/9-BIT DATA BUS (SS=”0”, BGR=”0”) ............................................... 109
FIGURE33 I80-SYSTEM INTERFACE WITH 8-BIT DATA BUS (SS=”0”, BGR=”0”) ............................................................ 110
FIGURE 34 I80-SYSTEM INTERFACE WITH 18-/9-BIT DATA BUS (SS=”1”, BGR=”1”) ..................................................... 111
FIGURE 35 GRAM ACCESS WINDOW MAP ..................................................................................................................... 112
FIGURE 36 GRAYSCALE VOLTAGE GENERATION............................................................................................................. 113
FIGURE 37 GRAYSCALE VOLTAGE ADJUSTMENT ............................................................................................................ 114
FIGURE 38 GAMMA CURVE ADJUSTMENT ....................................................................................................................... 115
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Version: 0.010
Page 5 of 134
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9331
FIGURE 39 EXAMPLE OF RMP(N)0~5 DEFINITION........................................................................................................... 117
FIGURE 40 RELATIONSHIP BETWEEN SOURCE OUTPUT AND VCOM ............................................................................... 120
FIGURE 41 RELATIONSHIP BETWEEN GRAM DATA AND OUTPUT LEVEL........................................................................ 120
FIGURE 42 POWER SUPPLY CIRCUIT BLOCK.................................................................................................................... 121
FIGURE 43 DISPLAY ON/OFF REGISTER SETTING SEQUENCE .......................................................................................... 122
FIGURE 44 STANDBY/SLEEP MODE REGISTER SETTING SEQUENCE ........................................................................... 123
FIGURE 45 POWER SUPPLY ON/OFF SEQUENCE ............................................................................................................. 124
FIGURE 46 VOLTAGE CONFIGURATION DIAGRAM........................................................................................................... 125
FIGURE 47 VOLTAGE OUTPUT TO TFT LCD PANEL ........................................................................................................ 126
FIGURE 48 PARTIAL DISPLAY EXAMPLE.......................................................................................................................... 127
FIGURE 49 I80-SYSTEM BUS TIMING............................................................................................................................... 130
FIGURE 50 SPI SYSTEM BUS TIMING............................................................................................................................... 131
FIGURE51 RGB INTERFACE TIMING................................................................................................................................ 132
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Version: 0.010
Page 6 of 134
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9331
1. Introduction
ILI9331 is a 262,144-color one-chip SoC driver for a-TFT liquid crystal display with resolution of 240RGBx320
dots, comprising a 720-channel source driver, a 320-channel gate driver, 172,800 bytes RAM for graphic data
of 240RGBx320 dots, and power supply circuit.
ILI9331 has five kinds of system interfaces which are i80-system MPU interface (8-/9-/16-/18-bit bus width),
VSYNC interface (system interface + VSYNC, internal clock, DB[17:0]), serial data transfer interface (SPI),
RGB 6-/16-/18-bit interface (DOTCLK, VSYNC, HSYNC, ENABLE, DB[17:0]) and MDDI.
In RGB interface and VSYNC interface mode, the combined use of high-speed RAM write function and widow
address function enables to display a moving picture at a position specified by a user and still pictures in other
areas on the screen simultaneously, which makes it possible to transfer display the refresh data only to
minimize data transfers and power consumption.
ILI9331 can operate with 1.65V I/O interface voltage, and an incorporated voltage follower circuit to generate
voltage levels for driving an LCD. The ILI9331 also supports a function to display in 8 colors and a sleep mode,
allowing for precise power control by software and these features make the ILI9331 an ideal LCD driver for
medium or small size portable products such as digital cellular phones, smart phone, PDA and PMP where
long battery life is a major concern.
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Version: 0.010
Page 7 of 134
2. Features
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9331
Single chip solution for a liquid crystal QVGA TFT LCD display
240RGBx320-dot resolution capable with real 262,144 display color
Support MVA (Multi-domain Vertical Alignment) wide view display
Incorporate 720-channel source driver and 320-channel gate driver
Internal 172,800 bytes graphic RAM
CABC (Content Adaptive Brightness Control)
System interfaces
i80 system interface with 8-/ 9-/16-/18-bit bus width
Serial Peripheral Interface (SPI)
RGB interface with 6-/16-/18-bit bus width (VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])
VSYNC interface (System interface + VSYNC)
MDDI (Mobile Display Digital Interface)
Internal oscillator and hardware reset
Reversible source/gate driver shift direction
Window address function to specify a rectangular area for internal GRAM access
Bit operation function for facilitating graphics data processing
Bit-unit write data mask function
Pixel-unit logical/conditional write function
Abundant functions for color display control
γ-correction function enabling display in 262,144 colors
Line-unit vertical scrolling function
Partial drive function, enabling partially driving an LCD panel at positions specified by user
Incorporate step-up circuits for stepping up a liquid crystal drive voltage level up to 6 times (x6)
Power saving functions
8-color mode
standby mode
sleep mode
Low -power consumption architecture
Low operating power supplies:
IOVcc = 1.65V ~ 3.3 V (interface I/O)
VCI = 2.5V ~ 3.3 V (analog)
LCD Voltage drive:
Source/VCOM power supply voltage
DDVDH - GND = 4.5V ~ 6.0
VCL – GND = -2.0V ~ -3.0V
VCI – VCL ≦ 6.0V
Gate driver output voltage
VGH - GND = 10V ~ 20V
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Version: 0.010
Page 8 of 134
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