On monochrome LCD (1 color) as the old calculator on the screen, the crystals are simply open and close cell. Whereas polariser will display changes (dark/light) so it appears the effect of light/flame (of the light reflected by the outer layer of the back of the LCD. Because the crystals formed had angular (square box), then the crystals have poles/polar. To understand how to work the pole LCD are as follows (not necessarily practiced when no material, quite conceivably only):
- Take a clear glass with a size of 3x9 cm square with a glass thickness of 1 cm.
- Standup with glass sides 3 cm as a Foundation, parallel to the eye.
- Put a flashlight-size width/large highlight lamp less than 1 cm behind the glass, turn on the flashlight. Then easily light a flashlight will penetrate through glass.
- Then rotate the glass by turning the glass slightly to the left/right, observe the flashlight light passes through the glass. Highlight the lights will follow the direction of the tilt of the glass, not more straight forward.
- Then rotate the glass until the straight against/flashlight. Then the flashlight will be halted by the thickness of the glass, are difficult to penetrate.
Inside the cell the LCD is like glass on top, some fruit stem Crystal stacked with very small size that can be rotated electrically, so that light from the backlight (back light) can be arranged intensity and angle, partial total or closed. When cells in an LCD is lit, then the backlight will light translucent total, when death/off then it will shut down backlight glow and this happens in the cells/dot LCD.
Because LCD cells consist of liquid and Crystal, then electrically these cells act as a capacitor, it has the ability to store the voltage. As with any process that requires a regular capacitor charging and discharging/charging/discharging the charge.
Examples of symbolic image pixels and cell matrix LCD (from outside sources):
The above mentioned that Crystal should be able to set the angle, playing around based on electrical conditions. The active component in the form of a Transistor or FET. To move 1 cell/pixel means need 1 set transistor/fet for filling and emptying the charge in the cells of the LCD. Often referred to as TFT (Thin Flat Transistor) because it is in glass LCD screen consists of a very thin transistor matrix for each cell. For example LCD with 320 x 240 pixel size, means there is a super small transistor set 76800 and planted inside a thin screen/glass.
The advantages of the transistor than the FET is immune. Transistors have low input impedance is not so easily distracted wild signals, but it took a great power (wasteful), so the line should be wide. Other flaws are switching transistor and low frequency linearity is bad. So the LCD with the driving transistors will be less in generating colors, so too a narrow angle it looks like on the screen/panel-type old type. Because it uses the path and size that is large enough, the screen/TFT panel into tend to be more durable. While FET-based, more color, high speed, but high impedance so easily distracted and of course the smaller line because the power is more efficient compared to transistor-based.
Pictures of cell locomotion and cell block/pixel LCD, in a picture wearing this type of FET and notice the relationship column/row.
Photo's above is an LCD TV with the condition the panel broke, the thickness of the total glass panels of less than 3 mm, is quite risky and easily broke/cracked. In the panel there is a subtle line and line-this line is not flexible like cables in an open space.
Polariser and Gamma
As already mentioned above, and practiced the Crystal is glass that will forward the rays when the angle is just right. This Crystal played/controlled in accordance with the pictures, when black color means the crystals on the position on the side (not translucent), the slope or the degree of rotation Crystal is regulated by gamma, the degree of rotation Crystal is called polarity/poles.
Polariser is a layer that is composed of several layers of color are arranged overlapping with the slope of each different colors with a certain angle. For example there is a layer of polariser with 3 colours red, green and blue. The Polariser would be compiled by the order of the color red at an angle of 45 degrees, 90 degrees at the corner of green and blue at an angle of 135 degrees. When the crystals in the cells of the LCD tilted 45 degrees, then highlight the light is passed will fall right in red so the polariser appear red dots on the front screen/panel. When the crystals are tilted 90 degrees then the light will fall on the layers of the color green so green appeared on the screen, and so on. When the light be penetrated is not right or turn, then what happens is the color of the Rainbow, because showing a few colors at once.
Or another example is image polariser technology toys for children that when viewed from the front of the picture of a cat, when seen from a 45-degree left hand turn into the image of Tiger and when seen from 45 degrees to the right depicts a lion.
Setting the angle of rotation Crystal in LCD regulated by gamma a grow voltage stages from small to a certain size (degree of greyscale). The degree of rotation Crystal regulated by gamma. The greater number of gamma voltage then the resulting color will be more and more.
Since gamma was instrumental in generating a number of colors, then the damage predicted clear gamma, i.e. defect color. Work the color data is governed by the gamma of a timing control (T-CON), so when the color format is not appropriate, then the gamma is also inappropriate in generating colors.
On some products, gamma reference voltage can be programmed or stored. Use to set the White Balance white balance settings, such as on a CRT TV.
Practical makes the tech perfect
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