User`s manual

ManualsBrandsSeiko ManualsComputer equipmentG1216

AN.No.G1216B1N000-3D0E

LIQUID CRYSTAL DISPLAY MODULE

G 1 2 1 6 B 1 N 0 0 0

USER’S MANUAL

Seiko Instruments Inc.

Summary of content (30 pages)

PAGE 1
AN.No.G1216B1N000-3D0E LIQUID CRYSTAL DISPLAY MODULE G1216B1N000 USER’S MANUAL Seiko Instruments Inc.
PAGE 2
AN.No.G1216B1N000-3D0E This manual provides technical information covering functions and operational instructions for the G1216 liquid crystal display modules made by Seiko Instruments Inc. Please read through this manual before operating the product. Distribution of this manual to third parties for any purpose other than operation of the product is prohibited. The descriptions herein are subject to change without prior notice.
PAGE 3
AN.No.G1216B1N000-3D0E CONTENTS 1. 2. 3. 4. GENERAL 1.1 General ..................................................................................................... 1 1.2 Features.................................................................................................... 1 1.3 Absolute Maximum Ratings (excluding LED backlight)............................ 2 1.4 Mechanical Characteristics....................................................................... 2 1.
PAGE 4
AN.No.G1216B1N000-3D0E 1. GENERAL 1.1 General The G1216 is a very thin LCD module on which a full-dot matrix LCD panel and a CMOS IC driver are integrated. The LCD panel used here features wide viewing angle and high contrast. This full dot configuration allows a wide variety of patterns to be displayed depending upon the input data. The display position is the intersection point of the matrix transparent electrodes. This prevents display distortion and displacement.
PAGE 5
AN.No.G1216B1N000-3D0E 1.3 Absolute Maximum Ratings (excluding LED backlight) Vss = 0 V Item Symbol Conditions Min. Max. Unit Power supply VDD Ta = 25 C -0.3 7.0 V voltage Input voltage VLC VIN 50 10%RH VDD -19.0 -0.3 VDD + 0.3 VDD+ 0.3 V V -20 +70 C -30 +80 C +20 +20 +85 +65 %RH %RH Operating temperature Storage temperature Storage humidity Topr 65%RH Tstg 48 hrs 1000 hrs 1.
PAGE 6
AN.No.G1216B1N000-3D0E 1.6 Optical Characteristics 1/64 duty, 1/9 bias, fFRM = 71.4 Hz, Vopr = VDD -VLC , LED backlight: OFF Item Sym. Conditions θ1 C ≥ 2.0 ∅ = 0° Vopr=13.0 V θ2 Viewing angle θ2-θ1 θ1 C ≥ 2.0 ∅ = 270° Vopr=13.0 V θ2 θ2-θ1 Contrast θ = 0° ∅ = 0° Vopr=13.0 V θ = 0° ∅ = 0° Vopr=13.0 V θ = 0° ∅ = 0° Vopr=14.0 V C ton toff Response time ton toff Temp. 25°C 25°C 25°C 25°C -20°C Min. Typ. Max.   -15 15   30     -20 50   70   2.5 3.
PAGE 7
AN.No.
PAGE 8
AN.No.G1216B1N000-3D0E (2) Electrical and optical characteristics Ta = 25°C Item Symbol Meas. condition Min. Typ. Max. Unit Forward voltage VF IF=90 mA 3.8 4.1 4.4 V Reverse current IR VR=8 V   0.9 mA (3) LED backlight connection diagram LEDA Number of LED chips=20 LEDC (4) Brightness (panel upper side) Item Surface brightness (Center of LCD panel) Symbol Min. Typ. Max. Unit BP 1.0 2.
PAGE 9
AN.No.G1216B1N000-3D0E 1.9 Dimensions Unit: mm General dimensional tolerance:±0.5 Figure 1 Dimensions I/O terminal functions 1 No. Sym. 1 2 3 4 5 6 7 8 9 10 VDD VSS VLC DB0 DB1 DB2 DB3 DB4 DB5 DB6 Functions Power supply voltage: +5.0 V GND: 0 V LC drive voltage Data bus (LSB) Data bus Data bus Data bus Data bus Data bus Data bus No. Sym.
PAGE 10
AN.No.G1216B1N000-3D0E 2. CIRCUIT CONFIGURATION 2.1 Block Diagram This product consists of two HD61202 segment drivers, an HD61203 common driver and a bias voltage generator. Figure 2 shows the block diagram. DB0 to DB7 RST, R/W, D / I, E CS2 CS1 VLC Bias Voltage Va, Vc, Vd, Vf Generator VDD VSS Va Vb Ve Vf FRM Segment Driver 1 Segment Driver 2 64 64 M CL2 1 2 Common Driver 64 128 64 full dot matrix LCD LEDA LED Backlight LEDC Figure 2 Block Diagram 2.
PAGE 11
AN.No.G1216B1N000-3D0E 2.2.
PAGE 12
AN.No.G1216B1N000-3D0E 2.2.
PAGE 13
AN.No.G1216B1N000-3D0E In order to read the content of the output register, the Chip Select must be selected, D/I must be 1, and R/W must be 1. When executing the “Read” instruction, the contents of the output register stored at that time are output during the time that “E” is 1. When “E” falls, display data of the currently indicated address is written in the output register. After that, the address advances by one. The contents of the output register are rewritten by the Read instruction.
PAGE 14
AN.No.G1216B1N000-3D0E (4) Display start line register The display start line register is a register which determines the line address (see Figure 6) for which data is displayed on the top line of the LCD screen when displaying the contents of the display data RAM on the LCD screen. It is also used to scroll the display. The 6 bit (0 to 63) display start line information is written in this register by the Display Start Line Set Instruction.
PAGE 15
AN.No.
PAGE 16
AN.No.G1216B1N000-3D0E Y-address counter This counter sets the address by instruction and is automatically advanced by the read/write operation. Counting is performed by looping the values 0 to 63. 2.3 Common driver (HD61203) The common driver is a 64 drive output CMOS IC.
PAGE 17
AN.No.G1216B1N000-3D0E 3. OPERATING INSTRUCTIONS 3.1 Terminal Functions Table 1 Terminal Functions Signal QTY I/O Destination to 8 I/O MPU Common terminal for tristate input and output, and data bus. E 1 Input MPU Enable Write (R/W=0):Latches data of DB0 to DB7 at the fall of E. Read (R/W=1):Outputs data to DB0 to DB7 while “E” keeps a high level. R/W 1 Input MPU Read/Write selection R/W=1: When E=1 and CS1=0 or CS2=0, the data is output to DB0 to DB7 and read is available by MPU.
PAGE 18
AN.No.G1216B1N000-3D0E 3.2 Timing Characteristics Item Symbol Min. E cycle time tCYC 1000 E pulse width (H) PWEH 450 E pulse width (L) PWEL 450 E rise time tr E fall time tf Address setup time tAS 140 Address hold time tAH 10 Data setup time tDSW Data delay time tDDR Data hold time during write tDHW 10 Data hold time during read tDHR 20 Typ. 200 Note 1: When the MPU writes: Max.
PAGE 19
AN.No.G1216B1N000-3D0E 3.3 Reset Function Setting the RST terminal to a low level when the power is on allows for initial setup. Display OFF Display start line register: Set address 0. While the RST remains at a low level, instructions other than the status read cannot be accepted. Execute other instructions after confirming that DB4=0 (reset release) and DB7=0 (ready) , using the status read instruction. The power conditions for power-on initial setup are as follows:.
PAGE 20
AN.No.G1216B1N000-3D0E 3.4 Instructions 3.4.1 General Instructions are listed on Table 2. Instructions other than the Status Read instruction will not be executed if they are sent while another instruction is already being executed. The busy flag is “1” when executing the instruction. Check whether or not the flag is “1” before transmitting the instructions from the MPU.
PAGE 21
AN.No.G1216B1N000-3D0E (2) Display start line R/W D/I Code 0 0 DB7 1 DB0 1 A A A A A A Lower bits Upper bits Sets the display data RAM line address expressed with binary AAAAAA in the display start line register. When displaying the content of the display data RAM, the display data on the line addresses which are set in the register is displayed on the top line on the LCD screen. For address configuration inside the display data, refer to Figure 6.
PAGE 22
AN.No.G1216B1N000-3D0E (3) X-address (page) set R/W D/I Code 0 DB7 0 DB0 1 0 1 1 1 A A A Upper bits Lower bits The display data RAM “X” address (page) which is expressed with binary AAA is set in the X-address register. Following write/read operations from the MPU are performed on the specified X-address (page) until the next X-address (page) set is performed. The configuration of display data RAM and X-address is shown in Figure 9.
PAGE 23
AN.No.G1216B1N000-3D0E (5) Status read R/W D/I Code BUSY: 1 0 DB7 BUSY DB0 0 ON/OFF RESET 0 0 0 0 When BUSY=1, it means that the the module is operating internally and the next instruction is not accepted until BUSY=0. After confirming that BUSY=0, it is necessary to perform the next write. ON/OFF: Indicates that the display is OFF when ON/OFF=1. Indicates that the display is ON when ON/OFF=0. RESET: Indicates that initial setup is performed by the RST signal.
PAGE 24
AN.No.G1216B1N000-3D0E 3.5 Contrast Adjustment and Power Supply Example The LC panel viewing angle and display screen contrast are greatly affected by the ambient temperature. The recommended LC drive voltage (Vopr) at each temperature is given below. is a value at which the best display is visually obtained. Vopr This value does not always correspond to the value at which the best contrast (Cmax.) is obtained.
PAGE 25
AN.No.G1216B1N000-3D0E Limit resistance “R” is calculated using the following equation. The resistance becomes the value shown in Figure 11. R= VIN − VF IF VIN =Input voltage (power voltage)(V) VF =LED forward voltage (V) IF =Allowable LED forward current (A) (Ω) For this resistance value, the forward current becomes lower than 50 mA at 25°C. The surface brightness of the LED backlight varies with the forward current. See Figure 12. Compared with 1.
PAGE 26
AN.No.G1216B1N000-3D0E 3.
PAGE 27
AN.No.G1216B1N000-3D0E 4. PRECAUTIONS Safety If the LCD panel is damaged, be careful not to get the liquid crystal in your mouth. If the liquid crystal touches your skin or clothes, promptly wash it off using soap and plenty of water. Handling Avoid static electricity, as it will damage the CMOS LSI. The LCD panel is made of plate glass. Do not hit or crush it. Do not remove the panel or frame from the module. The polarizer of the display is very fragile. Handle it very carefully.
PAGE 28
AN.No.G1216B1N000-3D0E INDEX -AActive display area ............................................................................. 2 -BBias voltage generator ................................................................. 7, 13 Block diagram................................................................................. 7, 8 Busy flag....................................................................................... 8, 10 -CChip select...................................................................
PAGE 29
AN.No.G1216B1N000-3D0E -LLC drive voltage ........................................................................... 6, 21 LC panel life time................................................................................ 4 LED backlight characteristics ............................................................. 4 -OOperating temperature ....................................................................... 2 Output register...............................................................................
PAGE 30
Seiko Instruments Inc. Head Office Components Overseas Marketing & Sales Department 1-8, Nakase, Mihama-ku, Chiba-shi, Chiba 261, Japan Phone: 043-211-1213 FAX: 043-211-8035 Seiko Instruments U.S.A. Inc. Electronic Components Division 2990 W. Lomita Blvd., Torrance Calif. 90505, USA Phone: 310-517-7770 FAX: 310- 517-7792 Seiko Instruments GmbH Siemensstrasse 9b, 63263 Neu-Isenburg, Germany Phone: 49-6102-297-0 FAX: 49-6102-297-222 Seiko Instruments ( H. K. ) Ltd.