DEM 16227 SYH-LY Product Specification Display Elektronik GmbH LCD MODULE DEM 16227 SYH-LY Product Specification Version: 2 16.08.
DEM 16227 SYH-LY Product Specification DOCUMENT REVISION HISTORY Version 0 1 2 DATE 03.02.2007 03.08.2017 16.08.
DEM 16227 SYH-LY Product Specification CONTENTS 1. FUNCTIONS & FEATURES ......................................................................................................1 2. MECHANICAL SPECIFICATIONS ..........................................................................................1 3. BLOCK DIAGRAM ....................................................................................................................1 4. DIMENSIONAL OUTLINE .......................................................
DEM 16227 SYH-LY Product Specification 1. FUNCTIONS & FEATURES Display Format LCD Mode Viewing Direction Driving Scheme Power Supply Voltage (V DD) LCD Driving Voltage Operation Temperature Storage Temperature Backlight Color : 16x2 Characters : STN / Positive / Transflective, Yellow-Green : 6’clock : 1/16 Duty, 1/5 Bias : 5.0 Volt (typ.) : 3.9 Volt (typ.) : -20°C to +70°C : -30°C to +80°C : LED, Lightbox, Yellow-Green (24xLEDs) 2.
DEM 16227 SYH-LY Product Specification 4. DIMENSIONAL OUTLINE Figure 2.
DEM 16227 SYH-LY Product Specification 5. PIN DESCRIPTION No. 1 2 3 4 5 6 7~14 A K Symbol VDD VSS V0 RS R/W E DB0~DB7 LED (A) LED (K) Function Power supply for Logic(+5V) Power ground (0V) Power supply for LCD drive Register selection (H: Data register , L :Instruction register) Read/write selection (H: Read , L: Write) Enable signal. Data Bus line Power supply for Backlight Power supply for Backlight 6.
DEM 16227 SYH-LY Product Specification 8. ELECTRICAL CHARACTERISTICS 8.1 DC Characteristics (VDD=4.5V-5.5V, TA=25°C) 8.
DEM 16227 SYH-LY Product Specification 8.3 AC Characteristics (VDD=4.5V-5.5V, Ta=-30°C to +85°C) (Refer to Figure 4) (Refer to Figure 3) Figure 3.
DEM 16227 SYH-LY Product Specification Figure 4. Read Mode Timing Diagram Interface Mode with LCD Driver (Refer to Figure 5) Figure 5.
DEM 16227 SYH-LY Product Specification 9. ELECTRO-OPTICAL CHARACTERISTICS Item Symbol Operating Voltage Vop Response Time Contrast Viewing Angle Range VERSION: 2 Tr Tf Cr q Ф Condition Ta = -20°C Ta = 25°C Ta = 70°C Ta = 25°C Ta = 25°C Cr≥2 Min 4.9 4.2 3.8 -------40 -40 ( VOP = 4.5V, Ta = +25°C ) Typ Max Unit 5.1 5.3 4.5 4.8 V 4.0 4.
DEM 16227 SYH-LY Product Specification 10.
DEM 16227 SYH-LY Product Specification 11.
DEM 16227 SYH-LY Product Specification 12. PRECAUTION FOR USING LCD/LCM LCD/LCM is assembled and adjusted with a high degree of precision. Do not attempt to make any alteration or modification. The followings should be noted. General Precautions: l LCD panel is made of glass. Avoid excessive mechanical shock or applying strong pressure onto the surface of display area. l The polarizer used on the display surface is easily scratched and damaged. Extreme care should be taken when handling.
DEM 16227 SYH-LY Product Specification Operation Precautions: 1. The viewing angle can be adjusted by varying the LCD driving voltage Vo. 2. Since applied DC voltage causes electro-chemical reactions, which deteriorate the display, the applied pulse waveform should be a symmetric waveform such that no DC component remains. Be sure to use the specified operating voltage. 3. Driving voltage should be kept within specified range; excess voltage will shorten display life. 4.
DEM 16227 SYH-LY Product Specification 13. LCM TEST CRITERIA 1．Objective The LCM test criteria are set to formalize DISPLAY’s LCM quality standards with reference to those of the customer for inspection, release and acceptance of finished LCM products in order to guarantee the quality required by the customer. 2．Scope The criteria are applicable to all the LCM products manufactured by DISPLAY.
DEM 16227 SYH-LY Product Specification 5.2 The LCM shall be tested at the angle of 45° both left side and right side, and 0-45° both top side and bottom side (for STN LCM, at 20°~55°): 45° 45° 5.3 Definition of VA A area：Display area（AA area） B area: Viewing area（VA area） C area: Non-viewing area（not viewing after customer assembly） If there is any appearance viewing defect which do not affect product quality and customer assembly in C area, it’s accepted generally.
DEM 16227 SYH-LY Product Specification 6．Defects and Acceptance Standards 6.1 Electrical properties test No. 6.1.1 Defects Missing segment Accepted standard Description Dot and character missing segment caused by its wire broken/poor contact(s) and internal open circuit. MAJ MIN Reject √ 6.1.2 No display/ The products no picture display under normally reaction connected situation. Reject √ 6.1.
DEM 16227 SYH-LY 6.1.10 Pattern distortion Product Specification The pattern displayed width is either wider, narrower or deformed than the specified, caused by its misalignment and resulting in unwanted heave(s) or missing:|Ia-Ib|≤1/4W(W is the normal width) |Ia-Ib|>1/4W, When normally working the bias between measured voltage and designed voltage is more than ±4% (if at or below 5V, inspect at the tolerance of +/-0.2V) Reject 6.1.12 High current The current of LCD is higher than the standard one.
DEM 16227 SYH-LY Product Specification L d=(w+l)/2 Notes： 1.It is prohibited to have 5 areas of dot or line defects, and the distance between each other should ≥5mm. 2.VA area is 5000mm²,which apply to 4~4.5inches,and it is for 20 modules. 600mm² is for 1.4inches of 200 modules. Once area of VA exceeds 20000mm²(about 8inches, 6modules),it needs to redefine standard of dot and line. 6.2.
DEM 16227 SYH-LY Product Specification Chipping on the opposite side of conductive ITO. y 6.2.2.4 z x ≤1/6L / Y≤1/3W 1/3W
DEM 16227 SYH-LY deviation 6.3.3 Brightness deviation 6.3.4 Uneven brightness 6.3.5 Spot/line scratch Product Specification from its sample and found that the color not conforming to the drawing after testing. When powered on, the LCD brightness differs from its sample and is found after testing not conforming to the drawing; or if it conforms to the drawing but the brightness over ±40% than its typical value.
DEM 16227 SYH-LY Product Specification 6.5 PCB/COB No. Defects 6.5.1 Improper Epoxy Cover 6.5.2 PCB appearance defect 6.5.3 Wrong or missing Component s on PCB VERSION: 2 Description l Contacts exposure within the white circle for COB chip bonding. l The height of epoxy cover is out of the product specifications and drawing. l The epoxy cover over the COB chip exceeds the circle by more than 2mm in diameter, which is the maximum distance the epoxy cover is allowed to exceed the circle.
DEM 16227 SYH-LY Product Specification customer and specified in the mechanical drawing and/or component specifications, their specifications must conform to those of the suppliers; otherwise they shall be rejected. 6.6 Connector and other components No. 6.6.1 6.6.2 6.6.3 Defects Out of Specificatio n Position and order Appearance Description Acceptance standard The specification of connector and other components do not conform to the drawing.
DEM 16227 SYH-LY Product Specification The LCMs become yellow-brown or black as the residual resin or solder oil. There is white 6.7.6 mist residual at the solder point caused by PCB cleaning. Anything which is not clearly defined in 6.5~6.7 should refer to IPC-A-610E. Poor Appearance Reject √ 6.8 Hot Pressing components (including H/S，FPC, etc.） No. Defects Description Acceptance standard MAJ √ MIN 6.8.1 Out of its specification Reject 6.8.
DEM 16227 SYH-LY 6.9.2 Poor reinforcing band 6.9.3 Surface dirt 6.9.4 6.9.5 Assembly black spot Product mark 6.9.6 Inner packing 6.9.7 Dimension Product Specification the gold finger of FPC and PCB. Pierced or folded FPC/FFC exceeding limit sample. The protect tape using for reinforce which not complete covered the needed protection circuits (such as H/S, FFC, FPC, etc.) or it not joint with its pasted material or it glued on the output side of pins.
DEM 16227 SYH-LY Product Specification 7. Reliability Test Test items Condition High Storage Temp. +80°C High Operating Temp. +70°C Low Storage Temp. -30°C Low Operating Temp.
