This specification is made to be used for the Standard LCD Panel.

     

  

Ⅰ. Technical Specification

 

 

1-1          Basic Technological Options

1	Type	TN
2	Display Mode	Positive
3	Polarizer Option	Reflective
4	View Direction	12:00
5	Drive Condition	Duty=1/4 ; Bias= 1/3 ; Voltage=3.3V ;
6	Connector  Mode	PIN Type
7	Maximum AC Applied Voltage	10V
8	Maximum DC Applied Voltage	3.5V
9	Operating Temperature Range	0～+50℃
10	Storage  Temperature Range	-10～+60℃

 

1-2  Measurement Parameters

No.	Item	Symbol	Condition	Min	Typic	Max	Unit
1	Drive   Voltage	V	25℃	3.1	3.3	3.5	V
2	Response Time	Tr	25℃	---	49.2	150	Ms
			-10℃	---	190.9	1500
		Td	25℃	---	70.6	180
			-10℃	---	380.7	1700
3	Frame Frequency	Fr	25℃	32	64	128	Hz
4	Contrast Ratio	Cr	25℃	2	---	--
5	Viewing Angle Range	--	25℃	105    CR>2   Horizontal 88     CR>2   Vertical   ※			Deg

 

 

Ⅱ.Definitions of Whole Characteristics

2-1  Definitions of Vop

    The definitions of threshold voltage Vth1,Vth2 the following typical waveforms are applied on

 liquid crystal by the method of equalized voltage for each duty and bias

 

  ① Vth1:  The voltage which the brightness of segment indicates 50% of saturated value on the conditions of selected waveform

                 (ff=64Hz, Φ=90°θ=10°at 25℃)

 

② Vth2:  The voltage which the brightness of segment indicates 30% of saturated

 value on the conditions of non-selected waveform

                   (ff=64Hz, Φ=90°θ=10°at 25℃)

 

③Vop:    (Vth1(50%)+Vth2(30%))/2

                   (ff=64Hz, Φ=90°θ=10°at 25℃)

 

2-2  Definition of Response Time Tr,Td

 

①     Tr: The time required which the brightness of segment becomes 10% from 100% when waveform is switched to selected one from non-selected one.

(ff=64Hz, Φ=90°θ=10°at 25℃)

 

②     Td: The time required which the brightness of segment becomes 90% from 10% when waveform is switched to selected one from selected one.

                         (ff=64Hz, Φ=90°θ=10°at 25℃)

 

 

2-3  Definition of Contrast Ratio Cr

         Cr=A/B

①     A: Segments brightness in case of non-selected waveform

②     B: Segments brightness in case of selected waveform

2-4  Definition of Angle and Viewing Range

 Angular Graph: Constrast Ratio

Such as: Viewing Angle Range  80(Cr>2) Horizontal                      60(Cr>2) Vertical

 

 

III Functional Test & Inspection Criteria

 

3-1 Sample Plan

     Sampling plan according to MIL-STD-105D level 2, and acceptance/rejection criteria is based on:

     Major defect : AQL 0.65

     Minor defect : AQL 1.5

 

3-2 Inspection Condition

    Viewing distance for cosmetic inspection is 30cm with bare eyes, and under an environment of 800~1000 lux light intensity, all directions for inspection the sample should be within 450 against perpendicular line.

 

3-3 Definition of Inspection Zone in LCD

      

Zone A: Viewing area

Zone B: Non viewing area

Note: As a general rule, visual defects in Zone B are permissible, when it is no trouble for quality and assembly of customer’s product.

 

3-4 Major Defect

         All functional defects such as open (or missing segment), short, contrast different, excess power consumption, smearing, leakage, etc. And overall outline dimension beyond the drawing are classified as major defects.

 

 

 

 

3-5 Minor Defect

         Except the Major defects above, all cosmetic defects are classified as Minor defects.

 

Item No.	Items to be inspected	Inspection Standard		Classification of defects
3-5-1	Spot defect (white spot, black spot)	Zone A Size(mm) Acceptable Qty. Φ≦0.15 Acceptable 0.15<Φ≦0.2 2 0.2<Φ≦0.25 1 Φ>0.25 0   Remarks: For black/white spot, Φ is defined by Φ= (X + Y)/2		Minor
3-5-2	Line defect (Fiber, Scratch)	L (mm) W (mm) Acceptable Qty. Acceptable W≦0.03 Acceptable L≦3 W≦0.05 2 L≦3 0.05<W<0.08 1 - W>0.08 0		Minor
3-5-3	Orientation defect (such as misalignment of L.C.)	Not allowed inside viewing area.		Minor
3-5-4	Air Bubble	Size (mm) Acceptable Qty. Φ≦0.1 Acceptable 0.1<Φ≦0.25 3 0.25<Φ≦0.3 2 0.3<Φ≦0.5 1 Φ>0.5 0		Minor
3-5-5	Polarizing	Polarizer Position   (i)                  Shifting in position should not exceed the glass outline dimension. (ii)                Incomplete covering of the viewing area due to shifting is not allowed.		Minor
3-5-6	Segment deformity	3-5-6.1 Deformity (void or excess)   (i)                  void in segment Accept for A≦0.2mm or A≦20%d. (ii)                excess in segment Accept for B0.2mm or B≦20%d.		Minor
	Segment deformity	(iii)               Thicken and Thinner Note : Permissible Level A-d ≦ 1/4d B-d ≦ 1/4d and, A-B ≦ 0.25	Minor
	Segment deformity	3-5-6.2 Segment distortion/shifted segment.         Should not appear distortion of greater of less than 25% of the original segment width.	Minor
3-5-7	Glass defect	3-5-7.1 Glass protrusion (i) Maximum protrusion of outline should not exceed the maximum outline dimension in product drawing.	Minor
	Glass defect	(ii)                The protrusion on the contact pad should not exceed the 1/3 pad : Y≦1/3W     Where Y=protrudes part in contact pad.	Minor
		3-5-7.2 Cracks on glass progressive cracks on glass not acceptable.	Minor
		3-5-7.3 Chipped glass definition :        r = contact pad width        w = contact pad length        t = glass thickness        x = width of chipped area        y = length of chipped area        z = depth of chipped area        a = dimension of glass length	Minor
	Glass defect	3-5-7.3 Chipped glass definition :   (i)                  Chip on contact pad (unit : mm)        X Y Z Acceptable ≦1/3w acceptable I (ii)                Chips between top/bottom glasses. Acceptable for chips not extend to seal part. (iii)               Chips inside viewing area. Spots chips located inside viewing area should be treated as spot defect. (iv)              Crack on corner            X + Y ≦ 4 mm   (v)              Usual Surface cracks x y ≦ 10 mm ≦ t/2		Minor

 

 

3-6 Reliability Test

ITEM	TEMPERATURE	TEST CONDITION	JUDGMENT
Storage temperature
Upper spec. limit	60℃	60℃, 96 hr	LCD & Polarizer can be used normally.
Lower spec. limit	-10℃	-10℃, 96 hr
Operation temperature
Upper spec. limit	50℃	50℃, 240 hr, power on	LCD & Polarizer can be used normally.
Lower spec. limit	0℃	0℃, 240 hr, power on
High temp. & humidity		60℃, 90%RH, 120 hr.	LCD & Polarizer can be used normally.
Thermal shock			LCD can be used normally after test. *under normal humidity.

 

Every test items shall meet the following criteria (Criteria Judgment).

1.      All of the segments shall not be blurred.

2.      All segments shall be usually displayed.

Judgment shall be made after exposure in room temperature condition for 2 hours.

 

 

 

3-7 General Specification

    (i) Life time

              〉50,000hr.

 

    (ii) Definition of end of life

             〈 40% of the specified data

 

 

3-8 Warranty

         ADT will replace or repair any of her LCD in accordance with her LCD specificagtion for a period of one year from date of shipment. The warranty liability of ADT is limited to repair and/or replacement. ADT will not be responsible for any subsequent or consequential events.

 

3-9 Incoming Inspection

     After receiving shipment for 30 days, customer must issue report of incoming inspection. It will be regarded as pass if no notice after 30 days.

 

3-10 Quality Claim

     As confirmed by ADT with obvious problem and liability, defect will be treated as return. For defect not obvious, ADT and customer will discuss the settling method.

 

IV Handling Instruction

1.      Any DC or high AC voltage applied on LCD will shorten life-time and should be avoided.

2.      Use soft cloth with solvent recommended below to clean the display surface and wipe lightly.

-          Isopropyl alcohol, ethyl alcohol, trichlorotriflorothane

3.      Do not wipe the display surface with dry or hard materials that will damage the polarizer surface. Do not use the following solvent : water, ketone, aromatics

4.      Avoid intense shock and falls from a height and do not operate or store them exposed direct to sunshine or high temperature/humidity.

5.      Response time will be extremely delayed at low temperature, and LCD show dark color at a high temperature. However, those phenomena do not mean malfunction or out of order with LCD.

6.      Some fonts will be abnormally displayed when the display area is pushed hard during operation but it resumes normal condition after turning off once.

7.      For crash damaged or unnecessary LCD, it is recommended to wash off liquid crystal by either of solvents such as acetone and ethanol and should be burned up later.

8.      When any liquid leaked out of a damaged glass cell comes in contact with your hands, wash it off with soap and water.

9.      Do not push the surface of LCD strongly or make distort the LCD when mounting, it may cause operation failure.

10.  Use finger cap when touch the LCD to avoid contamination of electrode to cause poor contact.