Liquid crystal without color film and color displaying method thereof

Abstract

The invention discloses a liquid crystal without a color film and a color displaying method thereof. The method comprises the following steps of: dividing a single field frequency period into a plurality of primary color intervals according to the type of the primary color in an LED backlight module, outputting a multipath driving signal by a backlight driving circuit, switching to one-way driving signal output by a switch module and timesharing delaying to lighten the LEDs having a same color in respective primary color interval in the current field frequency period, and in the next field frequency period, lastly lightening the LED which is lightened firstly in the last field frequency period and the LEDs having the same color of other primary colors are orderly lightened by forward shifting the last lightened sequence of the primary color intervals. The technique of timesharing orderly delaying lightening color LED backlight is used, so RGB three-color pixel filter is saved and the cost of the raw material of the liquid crystal is lowered. Aiming at the panels having the same size, the resolution ratio and the definition of the liquid crystal are greatly improved. The energy consumption and the heat productivity of the liquid crystal are decreased because all the LED backlights need not be lightened simultaneously.

Description

technical field [0001] The invention relates to the field of liquid crystals with light-emitting diode backlights and their color display methods. More specifically, the improvement relates to an achromatic film liquid crystal and its color display methods. Background technique [0002] The backlight source in current LED (Light Emitting Diode, hereinafter referred to as LED) display technology is generally a white LED light source, and the color filter of RGB red, green and blue three-color pixels is set in the panel, and the RGB three-way signal is used to simultaneously control The liquid crystal matrix corresponding to the three-color pixels can control the light transmission amount of each liquid crystal matrix, and the required color and brightness can be obtained after passing through the RGB three-color pixel color filter. [0003] However, since the use of white LED backlight must be equipped with RGB three-color pixel color filters, commonly known as color filters,...

AI Technical Summary

Problems solved by technology

[0003] However, since the use of white LED backlight must be equipped with RGB three-color pixel color filters, commonly known as color filters, it not only makes it difficult to reduce the material cost of LCD (Liquid Crystal Display, LCD for short), but also restricts the resolution of LCD. and clarity are difficult to improve; at the same time, the energy consumption generated by having to light up all white LEDs cannot be ignored

[0004] Therefore, the existing technology still needs to be improved and developed

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