●What is the difference between Reflective, Transflective and Transmissive Displays? | ||||||||||||||||
A: |
Reflective:LCD ‘s top polarized light piece to be the reflection type and not pervious to light, can reflex external light, in order to see clear about display effect, not need to backlight, common products such as calculator. Transflective:LCD ‘s top polarized light piece is half transmission type, the external light can through part of it and other part reflecting back, half transmission have high semipermeable and low semipermeable ,usually have backlight, it is basically can see when surrounded have light and not light the backlight, look by backlight when no light surrounding , common products such as PDA. Transmissive:LCD’s top polarized light piece is transmission type, the external light can absolute through most part of it, need to have backlight, it needs to lighten backlight to see no matter whether there is light around or not, common products such as the car audio . |
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●What is the definition of Duty Rate and Bias Rate? | ||||||||||||||||
A: |
Duty Rate, also known as multiplex rate, is the fraction of the total frame time that each row of the LCD is addressed. Bias Ratio,also known as the Voltage margin, is the ratio of Von (voltage on pixels that are currently addressed to the ON-state) divided by Voff (voltage on pixels that are not currently addressed). |
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●What duty ratio does RINORN provide? | ||||||||||||||||
A: | TN (HTN)1/1 – 1/16 duty ;STN 1/1 – 1/240 duty | |||||||||||||||
●What is the meaning of viewing angle? | ||||||||||||||||
A: | Viewing angle can be defined as the area which, when looking from left, right, above and below the display can be seen clearly. Moving outside the viewing angle results in an inferior image.Viewing direction is 6 O’clock 、12 O’clock、3 O’clock、9 O’clock . 6 O’clock and 12 O’clock are usually. | |||||||||||||||
●What is the standard thickness of ITO glass? | ||||||||||||||||
A: | 0.4t, 0.55t, 0.7t, and 1.1t | |||||||||||||||
●What are the working temperature ranges for each product? | ||||||||||||||||
A: |
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●What difference between TN, HTN, STN, FSTN, DSTN and VA ? | ||||||||||||||||
A: |
TN(Twisted Nematic):Twisted nematic liquid crystal. Liquid crystal molecules twisted to 90 °, suitable for 1/1 ~ 1/8 duty drive poems, if more than 1/8 duty, so the Angle is narrow, the display effect is poor. Common products such as calculator, digital watches, digital clock, etc. HTN(High Twisted Nematic):between TN and STN, high twisted nematic liquid crystal, liquid crystal molecules twisted to 110 ° ~ 130 °, suitable for 1/8 ~ 1/32 duty drive poems, if more than 1/32 duty, so the Angle is narrow, the display effect is poor. Common products such as lattice screen low-end game toys etc. STN(Super Twisted Nematic):Super twisted nematic liquid crystal, liquid crystal molecules twisted to 230 ° ~ 270 °, yellow green mould(yellow bottom green word), Gray mould(gray bottom blue word), suitable for 1/32 ~ 1/320 duty drive poems, if more than 1/320 duty, so the Angle is narrow, the display effect is poor. Common products such as Pos machine, PDA etc. FSTN(Film Super Twisted Nematic):Film Super Twisted Nematic, the top polarized light piece has a layer of phase difference compensation film, to achieve the black and white show effect, and has a good contrast. DSTN(Double STN):use another LCD layer, double super twisted nematic liquid crystal display, correct the problem of color moving in STN, because of high cost , rarely used at present. VA(Vertical Alignment):Vertical Alignment technology, VA panel is now more application in high-end LCD panel type, belongs to the wide angle panel. compared with TN panel, 8 bit panel can provide 16.7 M colour and big visual Angle is what they can in the positioning of high-end capital in the panel, but the price is also expensive than TN panel. VA type panel can be divided into the Fujitsu leading MVA panel and the PVA panel research by samsung, the latter is the inheritance and improvement of the former. VA type panel’s positive (face) contrast is high, but the screen uniformity is not good enough, often happens color drift. Sharp text is its ace in the hole, black and white contrast is quite high. |