DOT MATRIX LIQUID CRYSTAL DISPLAY MODULE

Transcription

1 DOT MATRIX LIQUID CRYSTAL DISPLAY MODULE LMGS24I2 Serial USER MANUAL LMGSS24I2DLGY LMGSS24I2DLGW LMGSS24I2DLGB LMGSS24I2DLNW LMGSF24I2DLGW LMGSS24I2DLYY LMGSS24I2DLYW LMGSS24I2DLYB LMGSF24I2DLNW LMGSF24I2DLGB Design PROPOSED BY Approved APPROVED SDEC TECHNOLOGY CORP.

2 CONTENTS PAGE. GENERAL AND MECHANICAL 2 2. ABSOLUTE MAXIMUN RATINGS 2 2. Electrical absolute maximum ratings Environmental absolute maximum ratings 2 3. ELECTRICAL CHARACTERISTICS 3 4. ELECTROOPTICAL CHARACTERISTICS 3 5. BLOCK DIAGRAM AND POWER SUPPLY 4 6. TIMING CHARACTERISTICS 4 7. DIMENSION OUTLINE AND PIN CONNECTIONS 5 8. POWER SUPPLY FOR BACKLIGHT 5 9. DISPLAY CONTROL INSTRUCTIONS 6 9. Command list Description of Flowchart of communications with MPU Initialize 4. CG ROM PATTERN 4. RELIABILITY CONDITION 5 2. FUNCTIONAL TEST & INSPECTION CRITERIA 5 PAGE (LMGS24I2 Serial)

3 . GENERAL AND CHARACTERISTICS Dot Matrix Format Controller IC Dimensional Outline Viewing Area Active Viewing Area Dot Pitch Dot Size LMGSS24I2DLGY LMGSS24I2DLYY LMGSS24I2DLGW LMGSS24I2DLYW LMGSS24I2DLGB LMGSS24I2DLYB LMGSS24I2DLNW LMGSF24I2DLNW LMGSF24I2DLGW LMGSF24I2DLGB dots T6963C or equivalent 9.W 74.H.D mm 83.2W 54.H mm 79.7W 46.5H mm.3w.33h mm.33w.36h mm STN, Gray, /28 Duty, /2 Bias, 6 O clock, LED Backlight (Color is Yellow Green) STN, Yellow Green, /28 Duty, /2 Bias, 6 O clock, LED Backlight (Color is Yellow Green) STN, Gray, /28 Duty, /2 Bias, 6 O clock, LED Backlight (Color is White) STN, Yellow Green, /28 Duty, /2 Bias, 6 O clock, LED Backlight (Color is White) STN, Gray, /28 Duty, /2 Bias, 6 O clock, LED Backlight (Color is Blue) STN, Yellow Green, /28 Duty, /2 Bias, 6 O clock, LED Backlight (Color is Blue) STN, Blue, /28 Duty, /2 Bias, 6 O clock, LED Backlight ( Color is White) FSTN, Black, /28 Duty, /2 Bias, 6 O clock, LED Backlight ( Color is White) FSTN, Gray, /28 Duty, /2 Bias, 6 O clock, LED Backlight ( Color is White) FSTN, Gray, /28 Duty, /2 Bias, 6 O clock, LED Backlight ( Color is Blue) 2. ABSOLUTE MAXIMUM RATINGS: 2. Electrical absolute maximum rating ITEM SYMBOL MIN MAX UNIT Logic Circuit Supply Voltage V DD V SS 7. V LCD Driver Circuit Supply Voltage V DD V EE 5. V Input Voltage V I V SS V DD V Operating Temperature T OP 2 +7 Storage Temperature T ST Environmental absolute maximum ratings ITEM OPERATING STORAGE COMMENT MIN MAX MIN MAX Ambient Temperature /2 5/7 /3 6/8 Norm/Extended Note () Humidity Note (2) Note (2) Without condensation Vibration 4.9m/s 2 9.6m/s 2 XYZ directions Shock 29.4m/s 2 49.m/s 2 XYZ directions Note () Ta at 6 : 5 HR MAX Note (2) Ta 4 : 9% RH MAX Ta 4 : Absolute humidity must be lower than the humidity of 9% at 4. (Note ) Definition of response time and measuring condition. Response time should be measured at the point of the most smallest response in all segments under the following condition. a) Temperature 25 b) Frame frequency 64 Hz c) Viewing angle =, = +Vop /ff Vop PAGE 2 (LMGS24I2 Serial)

4 9% % (Note 2) tr Definition of viewing angle FrontRear direction 2 tf RightLeft direction 2 Rear Front Left Right 3. ELECTRICAL CHARACTERISTICS V SS = V, Ta = 25 ITEM SYMBOL CONDITION MIN TYP MAX UNIT Logic Circuit Power Supply V DD V SS V LCD Driver Power Supply V DD V EE 9. V Input Voltage V IH V DD = 5V.7*V DD V DD V V IL.25.3*V DD V Power Supply Current I DD V DD = 5V 2. ma I EE V EE = V 2. ma 4. ELECTROOPTICAL CHARACTERISTICS ITEM SYMBOL CONDITION MIN TYP MAX UNIT REF. Rise Time Tr ms Note Fall Time Tf 25 9 ms Note Contrast Cr Note 3 Viewing Angle 25 & 5 DEG Note 2, 2 Cr 3 4 DEG Note 2 Frame Frequency Ff Hz Note &2 : See previous page. Note 3 : Contrast ration is defined under the following condition. Cr = reflectance value of nonselected condition reflectance value of selected condition. (a) Temperature (b) Frame frequency Hz (c) Viewing angle... =, = (d) Operating voltage V PAGE 3 (LMGS24I2 Serial) 5. BLOCK DIAGRAM AND POWER SUPPLY

5 6. TIMING CHARACTERISTICS ITEM SYMBOL MIN TYP MAX UNIT C/D Set Up Time tcds ns C/D Hold Time tcdh ns /CE,./RD,/WR Pulse Width tce,trd,twr 8 ns Data Set Up Time tds 8 ns Data Hold Time tdh 4 ns Access Time tacc 5 ns Output Hold Time toh 5 ns PAGE 4 (LMGS24I2 Serial) 7. DIMENSION OUTLINE AND PIN CONNECTIONS

6 NO. SYMBOL FUNCTION NO. SYMBOL FUNCTION FGND Frame ground DB Data bus line 2 V SS Ground potential (Logic) 2 DB Data bus line 3 V DD Power supply for logic circuit 3 DB2 Data bus line 4 V O Power supply for LCD circuit 4 DB3 Data bus line 5 /WR Data write 5 DB4 Data bus line 6 /RD Data read 6 DB5 Data bus line 7 /CE Chip enable 7 DB6 Data bus line 8 C/D Command/Data 8 DB7 Data bus line 9 V EE Negative voltage input 9 FS Font select H:6x8 L:8x8 /RES Controller reset 2 LEDK LED Backlight 8. POWER SUPPLY FOR BACKLIGHT ITEM LED Backlight LED Backlight LED Backlight Use Inverter Type Backlight Color Yellow Green Blue White Backlight Input Voltage DC +4.2 V DC +3.2 V DC +3.2 V Backlight Frequency Backlight Current 44 ma 44 ma 44 ma Inverter Input Voltage Inverter Current Density HalfLife Time 3, HR. 9. DISPLAY CONTROL INSTRUCTION 9. Command list PAGE 5 (LMGS24I2 Serial)

7 COMMAND OCDE D D2 FUNCTION REGISTER X adrs Y adrs CURSOR POINTER SET SET data H OFFSET REGISTER SET CONTROL WORD SET MODE SET DISPLAY MODE CURSOR PATTERN SELECT DTAT AUTO READ/WRITE DATA READ WRITE X X X X XXX XXX XX XX XX XX XX Low adrs Low adrs Columns Low adrs Columns data data data High adrs High adrs H High adrs H ADDRESS POINTER SET TEXT HOME ADDRESS SET TEXT AREA SET GRAPHIC HOME ADDRESS SET GRAPHIC AREA SET OR mode EXOR mode AND mode TEXT ATTRIBUTE mode Internal CG ROM Mode External CG RAM mode DISPLAY OFF CURSOR ON, BLINK OFF CURSOR ON, BLINK ON TEXT ON, GRAPHIC OFF TEXT OFF, GRAPHIC ON TEXT ON, GRAPHIC ON LINE CURSOR 2 LINES CURSOR 3 LINES CURSOR 4 LINES CURSOR 5 LINES CURSOR 6 LINES CURSOR 7 LINES CURSOR 8 LINES CURSOR DATA AUTO WRITE SET DATA AUTO READ SET AUTO RESET SCREENPEEK SCREEN PEEK SCREEN SCREEN COPY COPY BIT SET/ RESET XXX XXX X X X X X X X X DATA WRITE AND ADP INCREMENT DATA READ AND ADP INCREMENT DATA WRITE AND ADP DECREMENT DATA READ AND ADP DECREMENT DATA WRITE AND ADP NONVARIABLE DATA READ AND ADP NONVARIABLE BIT RESET BIT SET BIT (LSB) BIT BIT2 BIT3 BIT4 BIT5 BIT6 BIT7 (MSB) Note : Status check between all s and data is recommended, though execution time for several s are specified in above list. For the s with status check in execution time, execution time does not specified because it is infunced by internal situation of controller LSI. 2 : In case of 2 screen mode, Screen copy cannot be used. 9.2 Description of PAGE 6 (LMGS24I2 Serial)

8 9.2. Register set CODE FUNCTION D D2 2H CURSOR POINTER SET X address Y address 22H OFFSET REGISTER SET DATA H 24H ADDRESS POINTER SET LOW address HIGH address A) CURSOR POINTER SET The position of cursor is specified by X ADRS, Y ADRS, The cursor position is moved only by this. The cursor pointer doesn t have the function of increment and decrement. The shift of cursor are set by this. X ADRS, Y ADRS are specified following X ADRS H~4FH (lower 7bits are valid) Y ADRS H~FH (lower 5bits are valid) ) screen drive 2) 2 screen drive X ADRS ~4FH X ADRS ~4FH Y ADRS H~FH Y ADRS H~FH upper screen Y ADRS H~FH lower screen B) OFFSET REGISTER SET The offset register is used to determine external character generator RAM area. C) ADDRESS POINT SET The address point set is used to indicate the start address for writing ( or read ) to external RAM Control word set CODE FUNCTION D D2 4H TEXT HOME ADDRESS SET Low address High address 4H TEXT AREA SET Columns H 42H GRAPHIC HOME ADDRESS SET Low address High address 43H GRAPHIC AREA SET Columns H The home address and column size are defined by this. A) Text home address set The starting address of external display RAM for Text display is defined by this. The text home address shows the left end and most upper position. The relationship of external display RAM address and display position TH TH + TA (TH + TA) + TA (TH + 2TA) + TA TH + (n) TA TH + CL TH + TA + CL TH + 2TA + CL TH + 3TA + CL TH + (n) TA + CL TH: Text Home address TA: Text Area number (columns) CL: Columns are fixed by hardware, pinprogrammable ex) Text home address = H Text area = 2H MD2=H, MD3=H :32 columns DUAL=H, MDS=L, MDO=L, MD=H :4 lines H H EH FH 2H 2H 3EH 3FH 4H 4H 5EH 5FH 6H 6H 7EH 7FH B) Graphic home address set PAGE 7 (LMGS24I2 Serial)

9 The starting address of external display RAM for Graphic display is defined by this. The graphic home address shows the left end and most upper line. The relationship of external display RAM address and display position GH GH+GA (GH+GA)+GA (GH+2GA)+GA GH+(n)GA GH: Graphic Home address GA: Graphic area number (columns) CL: Columns are fixed by hardware. (pinprogrammable) ex) Graphic home address = H Graphic area = 2H MD2=H, MD3=H :32 columns DUAL=H, MDS=L, MD=M, MD=H :2 lines GH+CL CH+GA+CL GH+2GA+CL GH+3GA+CL GH+(n)GA+CL H H EH FH 2H 2H 3EH 3FH 4H 4H 5EH 5FH 6H 6H 7EH 7FH 8H 8H 9EH 9FH AH AH BEH BFH CH CH DEH DFH EH EH FEH FFH H H EH FH 2H 2H 3EH 3FH 4H 4H 5EH 5FH 6H 6H 7EH 7FH AH AH BEH BFH CH CH DEH DFH EH EH FEH FFH C) Text area set The columns of display are defined by the hardware setting. of display. ex) LCD size: 2 columns, 4 lines Text home address = H Text area = 4H MD2=H, MD3=H : 32 columns DUAL=h, MDS=L, MD=L, MD=H :4 lines This can be used to adjust columns 3 4 F B 3C 47 3C 3D 4F 5 5B LCD D) Graphic area set ex) The columns of display are defined by the hardware setting. This can be used to adjust columns of graphic display. LCD size: 2 columns, 2 lines Text home address = H Text area = 4H MD2=H, MD3=H : 32 columns DUAL=H, MDS=L, MD=H, MD=H : 2 lines PAGE 8 (LMGS24I2 Serial)

10 3 4 F B 3C 47 3C 3D 4F 5 5B F B 8C 97 8C 8D 9F A AB A A B3 B4 BF B4 B5 C7 C8 D3 C8 C9 DB DC E7 DC DD EF F FD F F 3 4 F B 2C 37 2C 2D 3F 4 4B LCD The address in graphic area can be continuous and RAM area can be used without ineffective area, if graphic area is defined the same number as the actual column number of LCD display Mode set CODE X X X X XXX XXX FUNCTION OR mode EXOR mode AND mode TEXT ATTRIBUTE mode internal character generator mode external character generator mode The display mode is defined by this. The display mode doesn t change until this is sent. Logically OR, EXOR, AND of text and graphic display can be displayed. When internal character generator mode is selected, character code H~7FH are selected from builtin character generator RM. The character code 8H~FFH are automatically selected from external character generator RAM. ex) Graphic Text OR AND EXOR Note: Only text display is attributed, because attribute data is located in graphic RAM area. A) Attribute function Reverse display, Character blink and Inhibit are called Attribute. The attribute data is written in the graphic area defined by Control word set. The mode set selects text display only and graphic display cannot be displayed. The attribute data of the st character in text area is written at the st byte in graphic area, and attribute data of nth character is written at the nth byte in graphic area. Attribute function is defined as follows: Attribute RAM Byte X X X X d3 d2 d d d3 d2 d d FUNCTION normal display reverse display inhibit display blink of normal display blink of reverse display blink of inhibit display X: don t care PAGE 9 (LMGS24I2 Serial)

11 9.2.4 Display mode CODE FUNCTION display off XX cursor on, blink off XX cursor on, blink on XX text on, graphic off XX text off, graphic on XX text on, graphic on d3 d2 d d cursor blink on:, off: cursor display on:, off: text display on:, off: graphics display on:, off: Note: It is necessary to turn on text display and graphic display in following case. ) Combination of text/graphic display 2) Attribute function Cursor pattern select CODE FUNCTION CODE FUNCTION line cursor 5 lines cursor 2 lines cursor 6 lines cursor 3 lines cursor 7 lines cursor 4 lines cursor 8 lines cursor When cursor display is ON, this selects the cursor pattern from line to 8 lines. cursor address is defined by cursor pointer set. line cursor 2 lines cursor 8 lines cursor Data auto read/write CODE FUNCTION BH data auto write set BH data auto read set B2H auto reset This is convenient to send full screen data from external display RAM. After setting auto mode, data write (or read) is not necessary between each data. Data auto write (or read) should follow the Address pointer set and address pointer is automatically increment by + after each data auto reset is necessary to return normal operation because all data is regarded display data and no can be accepted in the auto mode. Note: Status check for auto mode (STA2, STA3 should be checked between each data. Auto reset should be performed after checking STA3= (STA2=). Refer following flow chart. The PAGE (LMGS24I2 Serial)

12 9.2.7 Data read write CODE FUNCTION OPERAND CH DATA WRITE AND ADP INCREMENT data CH DATA READ AND ADP INCREMENT C2H DATA WRITE AND ADP DECREMENT data C3H DATA READ AND ADP DECREMENT C4H DATA WRITE AND ADP NONVARIABLE data C5H DATA READ AND ADP NONVARIABLE This is used for data write from MPU to external display RAM to MPU. Data write/read should be executed after setting address by address pointer can be automatically increment or decrement by setting this. Note: This is necessary for each byte data. Refer following flow chart Screen peek CODE FUNCTION OPERAND EH screen peek This is used to transfer displayed byte data to data stack, and this byte data can be read from MPU by data access. The logical combination data of text and graphic display on LCD screen can be read by this. The status (STA6) should be checked just after screen peek. If the address is not in graphic area, this ignored and status flag (STA6) is set. Refer following flow chart. PAGE (LMGS24I2 Serial)

13 9.2.9 Screen copy CODE FUNCTION OPERAND E8H screen copy This is used to copy displayed line data to graphic area. The start point of line data in the screen is determined by the address pointer. Note:a) When the attribute of text is used this cannot be used. (because attribute data is in the graphic area.) b) In case of 2 screen drive, this cannot be used. (because T6963c cannot separate upper screen data and lower screen data.) Refer following flow chart Bit set/reset CODE FUNCTION CODE FUNCTION XXX bit reset X bit 3 XXX bit set X bit 4 X bit (LSB) X bit 5 X bit X bit 6 X bit 2 X bit 7 This is used to set or reset a bit of byte is specified by address pointer. Plural bits in the byte data cannot be set/reset at a time. Refer following flow chart. PAGE 2 (LMGS24I2 Serial)

14 9.3 Flowchart of communications with MPU 9.3. Status Read Before sending data (read/write), it is necessary to check the status. A) Status Check Status of T6963C can be read from data lines. RD = L, WR = H, CE = L, C/D = H, D~7 > Status word T6963C. Status word format is following. MSB LSB STA7 STA6 STA5 STA4 STA3 STA2 STA STA D7 D6 D5 D4 D3 D2 D D STA check capability of execution : disable :enable STA check capability of data read/write : disable :enable STA2 check capability of auto mode data read : disable :enable STA3 check capability of auto mode data write : disable :enable STA4 not use STA5 check capability of controller operation : disable :enable STA6 error flag. using screen peek/copy : no error STA7 check the condition blink : display off :normal display Note:. It is necessary to check STA and STA at the same time. The error is happened by sending data at executing. 2. The status check will be enough to check STA/STA. 3. The STA2/STA3 are valid in auto mode STA/STA are invalid. Status checking flow Data Set 4. It is impossible to save status check in the case of that is MSB. To have the delay time cannot be save status check. The interrupt of hardware is happened at the end of lines. If of MSB is sent in this period, the executing is waited. The state of waiting is not known without to check status. The sending next or data is disregarded or rewrites data of waiting In T6963C, the data have been set and executes. The order of procedure of sending ) the case of data 2) the case of 2 data Note: In case of over 2 data sending, the last data ( or last 2 data) is valid. PAGE 3 (LMGS24I2 Serial)

15 9.4 Initialize Initialize of controller LSI T6963C is required for Mode set, Control word set after power on. Following is the one example of initialize procedure of 24x28 dots display (In case of 6x8 dots/font). Command C/D D7 D Note Power on Power on Hard reset ( use reset terminal ) RESET= L ( msec minimum after VDD>4.75V ) Mode set OR mode Control word set Graphic home position set ( Graphic home position H ) Number of graphic area set ( Graphic 4x6 dots ) Text home position set ( Text home position H ) Number of text area set ( text 4 column ) Initialize end, Data Write Address pointer set ( address pointer H ) Data Write ( graphic ) x Address pointer set ( address pointer H ) Data write ( text ) x x x x x x x x x x x x x x x x x Display Mode Set ( text/graphic on ) Note : status check should be inserted between all and data. graphic home address number of area text home address number of area graphic home address Data Data text home address Data Data 2 : Display mode set register is cleared ( no display mode ) by the hard reset, and no display is appeared on LCD panel. And just after Display Mode set 9CH, written data is display on the LCD.. CG ROM PATTERN PAGE 4 (LMGS24I2 Serial). RELIABILITY CONDITION

16 TN Type STN Type Normal Temp. Wide Temp. Normal Temp. Wide Temp. Viewing Horizontal Angle Vertical to 3 to 3 to 4 to 4 Operating Temperature to 7 25 to 8 to 5 * 2 to 7 Storage Temperature 2 to 8 35 to 9 2 to 7 * 3 to 8 High Temperature Low Temperature High Temperature Low Temperature High Temperature & High Humidity 55 /9%RH 75 /9%RH 45 /9%RH 65 /9%RH Thermal Shock C A 6min@2 6min@35 6min@2 6min@3 5 Cycle B B 5min@25 5min@25 5min@25 5min@25 A C 6min@7 6min@9 6min@7 6min@8 Expected Lift 5, Hours 5, Hours 5, Hours 5, Hours * Wide temp. version may not available for some products, Please consult our sales engineer or respresentative. 2. FUNCTIONAL TEST & INSPECTION CRITERIA 2.Sample plan Sample plan according to MILSTD5D level 2, and acceptance/rejection criteria is. Base on : Major defect : AQL.65 Minor defect : AQL Inspection condition Viewing distance for cosmetic inspection is 3cm with bare eyes, and under an environment of 8 lus (2W) light intensity. All direction for inspecting the sample should be within 45 against perpendicular line. 2.3Definition of Inspection Zone in LCD A B C Zone A : Character / Digit area Zone B : Viewing area except Zone A ( Zone A + Zone B = minimum Viewing area ) Zone C : Outside viewing area ( invisible area after assembly in customer s product ) Note : As a general rule, visual defects in Zone C are permissible, when it is no trouble for quality and assembly of customer s product. 2.4 Major Defect All functional defects such as open ( or missing segment ), short, contrast differential, excess power consumption, smearing, leakage, etc. and overall outline dimension beyond the drawing. Are classified as major defects. 2.5Minor Defect PAGE 5 (LMGS24I2 Serial)

17 Item No Except the Major defects above, all cosmetic defects are classified as minor defects. Item to be Inspection Standard Inspected Zone size (mm) Acceptable Qty A B C.5 Acceptable (clutering of spot not allowed ). Spot defect ( Defects in spot from ) 2. Line defect ( Defects in line form ) 3. Orientation defect (such as misalignment of L/C) 4. Polarizing Accepta ble Remarks : for dark/white spot, size is defined as =/2(X+Y) Size (mm) Acceptable Qty L W Zone Length Width A B C Accep W.2 Accep Acceptable table table L 3. W.3 2 L 2.5 W.3 L 3..3 W.5 2 L W.5 W.5 Counted as spot defect ( Follows item 2.5. ) Remarks:The total of spot defect and line defect shall not exceed four. Not allowed inside viewing area ( Zone A or Zone B ) Polarizer Position.Shifting in Position Should not exceed the glass outline dimension. 2.Incomplete covering of the viewing area due to shifting isn t allowed Seratches, bubble or dent on Glass/Polarizer/Reflector, Bubble between Polarizer & Reflector/Glass: Size (mm) Acceptable Qty Zone A B C.2 Acceptable Accep table Classification of defects Minor Minor Minor Minor PAGE 6 (LMGS24I2 Serial)

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