Parametric amplifier and control method, liquid crystal antenna and display panel, terminal

Abstract

The invention discloses a parametric amplifier, a control method, a liquid crystal antenna, a display panel and a terminal, and belongs to the field of display technology. The parametric amplifier includes: a first base substrate and a second base substrate oppositely arranged, and a first liquid crystal layer filled between the first base substrate and the second base substrate; the parametric amplifier also includes: stacked on The signal transmission layer, the first insulating layer, and the first electrode layer on the side of the first base substrate close to the first liquid crystal layer, wherein the signal transmission layer includes: at least one signal transmission line, and the first electrode layer includes: a plurality of strip electrodes ; The ground plane, the second insulating layer and the second electrode layer arranged on the side of the second base substrate close to the first liquid crystal layer are stacked; wherein, the first electrode layer and the second electrode layer are used to load periodically changing control signals , so that the liquid crystal in the first liquid crystal layer deflects under the control of the control signal. The parametric amplifier simplifies the manufacturing process of a terminal with a liquid crystal display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a parametric amplifier and a control method, a liquid crystal antenna, a display panel, and a terminal. Background technique [0002] A parametric amplifier is an amplifying circuit that uses a time-varying reactance parameter to amplify a signal. When the parametric amplifier is applied to an antenna, it can amplify the signal transmitted by the antenna. It is mainly divided into varactor parametric amplifier and quantum amplifier. [0003] In the related art, the varactor parametric amplifier is usually implemented by a varactor diode. For example, when a periodic alternating voltage is applied to both ends of the varactor diode, the capacitance value of the varactor diode can be periodically increased with the alternating voltage. When the varactor diode is connected to the signal loop of the antenna, if the change of its capacitance value and the voltage change of the signa...

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Problems solved by technology

[0004] With the application of the liquid crystal antenna in the terminal with the display panel, it is usually manufactured on the glass substrate of the display panel of the terminal, and the parametric amplifier realized by the varactor diode is usually manufactured on the circuit board, so that when manufacturing the terminal with the display panel In the process of the terminal, it is necessary to manufacture the parametric amplifier and the liquid crystal antenna separately, and then assemble the manufactured parametric amplifier on the display panel of the terminal, which makes the manufacturing process of the terminal complicated.

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