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LCD color display is a widely used technology in modern devices such as TVs, computers, and smartphones. It works by controlling the polarization of light to create different colors and display images. Let's take a look at how the LCD color display works step-by-step.
### Step 1: Backlight.
The first step in the LCD color display process is the backlight. A white light source located at the back of the screen provides illumination for the display panel.
### Step 2: Polarizing filters.
The white light from the backlight passes through a polarizing filter, which only allows light waves oscillating in a specific direction to pass through. This polarized light then travels through the liquid crystal layer.
### Step 3: Liquid crystals.
The liquid crystal layer consists of molecules that can change their orientation in response to an electric current. When no voltage is applied, the liquid crystals twist the polarized light waves, causing them to pass through a second polarizing filter placed at a right angle.
### Step 4: Color filters.
Color filters are located on top of each pixel in the display panel. These filters are used to create red, green, and blue subpixels that can produce a wide range of colors when combined.
### Step 5: Pixel color creation.
By varying the electrical voltage applied to each pixel, the orientation of the liquid crystals can be controlled to allow specific colors of light to pass through the color filters. By adjusting the intensity of the red, green, and blue subpixels, different colors can be created.
### Step 6: Image display.
When all the pixels on the display panel are illuminated with the appropriate colors, a full-color image is produced. The combination of millions of colored pixels creates the vibrant images and videos we see on LCD color displays.
### Conclusion.
In conclusion, the LCD color display works by manipulating polarized light with liquid crystals and color filters to create different colors for each pixel. By controlling the voltage applied to the pixels, a wide range of colors can be displayed on the screen. This technology has revolutionized the way we view and interact with visual information in our daily lives.
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