Control method and control device for three-dimensional liquid crystal glass lenses and three-dimensional glasses

Abstract

The invention discloses a control method and a control device for three-dimensional liquid crystal glass lenses and three-dimensional glasses. The method comprises the steps that a first left signal, a second left signal, a first right signal and a second right signal are generated and respectively comprise alternating constant voltages and impulse voltages; the first left signal and the second left signal are connected to two control terminals of the left liquid crystal lens, and the first right signal and the second right signal are connected to two control terminals of the right liquid crystal lens; in the chronological order, the impulse voltage of the first left signal / the first right signal corresponds to the constant voltage of the second left signal / the second right signal, and the constant voltage of the first left signal / the first right signal corresponds to the impulse voltage of the second left signal / the second right signal. According to the technical scheme of the control method and the control device for the three-dimensional liquid crystal glass lenses and the three-dimensional glasses, response time difference, caused by a three-phase control method used in the prior art, of liquid crystal lens state switching can be greatly reduced, and therefore jittering is slightly or substantially eliminated.

Description

technical field [0001] The invention relates to the technical field of three-dimensional glasses, in particular to a control method and a control device for a liquid crystal lens of three-dimensional glasses and a kind of three-dimensional glasses. Background technique [0002] With the rapid development of science and technology, household TVs have shown a trend of intelligence, and 3D technology is an essential function of smart TVs. The 3D display system has also gradually entered the family, providing people with a better viewing experience. Due to the improvement of the response speed of the liquid crystal material, the current liquid crystal display can achieve a refresh rate of 240 Hz or even higher. The refresh rate here refers to: the number of images that can be displayed on the screen per second. For example, if the screen can display n images per second, the refresh rate is n Hz. [0003] The existing three-dimensional glasses mainly divide the image into two f...

AI Technical Summary

Problems solved by technology

Since opening and closing the liquid crystal lens exists such as figure 2 The response delay effect shown generally sets the rising edge and falling edge for the control timing, but due to the weak frequency change of the waveform in the three-wire control, there is a specific moment when the left and right LCD lenses light up at the same time

like Figure 5 As shown by the dotted line in the middle, the dotted line indicates the moment when the left and right LCD lenses light up at the same time, and the system current rises rapidly, resulting in a large spike interference at this moment

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