Contact |
地址：深圳市福田区福强路金地工业区105栋6楼
6Floor, Block 105, Jin Di Industry Park, Fu Qiang Rd , Fu Tian, Shenzhen , China.
TEL:0086-755-83308729
TEL:0086-755-82977087
销售热线(Sales hotline)：
0755-26154265
FAX:0086-755-83308659
E_mail:
win_com@vip.163.com
Managing Director:
craig.jiang@wincomlcd.com
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| Technology |
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Liquid Crystal Display (LCD) uses liquid crystal fluid as the active medium
to create images. As shown in Fig. 1, a very large number of thin crystals
suspended in a fluid. The liquid reservoir is sandwiched between two thin
layers of glass. Each layer of glass has a transparent conductive electrode
bonded to it.
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| Figure #1 |
Polarizing material are placed on the outside surface of both front and
rear glasses. The top polarizer can polarize the incident light of random
polarization into its polarization direction. Before an electric field is
applied on the conductors, the crystals are aligned in a spiral pattern.
The light is then changed by the spiral pattern of the crystals. The
bottom polarizer is aligned opposite of the top polarizer. When the light
reaches the bottom polarizer, they will align with each other. The light
can pass through and as shown in Fig. 2, the LCD looks transparent.
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When in an electric field, the crystals align themselves with the field
so the light can pass through the crystal without being deflected, as
shown in Fig. 3. The light is then out of phase with the bottom polarizer
when the light is absorbed by the polarizer. The light can't pass through
and the LCD looks dark or opaque. By turning on/off electric field, we
can create desired display patterns.
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| Figure #3 |
LCD technology is advancing rapidly. with the Super Twisted Nematic (STN),
the display can reach a twist angle greater than 200 degree.
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