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FAQ
LCM kind FAQ  LCD kind FAQ   LCM kind FAQ   Precautions
1. Which cost is higer between Driver IC and Dice SMD Type?
A. As for unit price, SMD type is higher than Dece SMD type, but for bonding charge, Dice SMD type is a little higher than SMD type. As a result, for whole LCM, if the quantity of IC is over 4 pcs, we will suggest customer to select SMD type in order to improve the rate of output and reduce the cost of LCM.
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2. Which kinds of ITO resistance it will usually have?
A. 10 ĦB15£[ĦB30£[ĦB80 (Ohm)
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3.What's standard and thickness of LCD Glass?
A. 0.4mm, 0.5mm, 0.7mm, 1.1mm.
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4. What's the tooling charge of TAB Punching?
A.RMB 12 thousand or USD 1,450.
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5. What's the function of Inverter
A. Change low DC to high AC.
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6. Can SMT and COB Type have relatively high replacement?
A.Except PCB board, other part can compatible with electric application.
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7.When the user use the Inverter?
A.When customer need EL or CCEL backlight, it will be used.
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8.What's difference of the LCM product with single current and double current?
A. (1)Single electric source is the clients only provide one group of electric source with 3V-5V voltage to LCM, and the LCM already include other pressure part, and it can produce the voltage to enable the LCD panel work.
(2)Double electric source is clients will provide one group of electric source with 3V-5V voltage for LCM and another voltage for LCD panel.
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9. How many kinds Touch Panel? What is the feature of Genda?
A.(1) The analogy type include: resistance type, capacitance type, super-wave type etc.
(2) We use resistance type, beacuse its price is low and it has a good function.
(3) Low price
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10. How many kinds of Connector? How they are suitable for LCM?
A. (1)Heat seal: COGĦBCOBĦBLCD
(2) Pin: COG
(3)FPC: COBĦBCOGĦBTAB
(4)FFC: COB
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11. Which color of LED are mainly used in factory now?
A. Green,olivine, yellow, amber, chrysoidine, red, super red, blue, white, but the price of blue and white is higher, so they are used less.
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12. Which color of EL?
A. We use cool white, olivine, blue and chrysoidine now.
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13. Compare the feature of LED, EL with CCFL.

LED

EL

CCFL

Current

Higher current (7.5mA /granule)

Lower current (0.12/cmmA)

Lower current

Life

Long(30,000 hours)

Short (3000 hours)

Long (30,000 hours)

Driving Method

DC

AC

AC

Lightness Ħ^

Low

Mid

High

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14. What is Inverter£ż
A. It is called voltage transformer, it can transform the DC into AC, some products are driven with AC electric driver, but we only can provide DC power, so we change DC into AC with Inverter to drive the electric parts.
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15. What kind of Inverter are used in factory now?
A. Two kinds of light are driven with AC when they are used in EL, CCFL, so we can use the Inverter according to the user's request, but the EMI effect is produced between CCFL and Inverter(Hertzian waves effect), so it won't be usually used in module.
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16. Do the factory develop Touch Panel?
A. Two exploiture departments, one department is exploit Touch Panel, the other department is exploit Touch Panel Control IC.
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