The invention discloses a
liquid crystal handwriting board, a
handwriting device and a method for controlling the
handwriting device, and belongs to the technical field of display. The liquid crystalhandwriting board comprises a
liquid crystal panel and a driving
assembly. The
liquid crystal panel comprises a first substrate, a second substrate, a liquid
crystal layer, and a liquid
crystal layerlocated between the first substrate and the second substrate, wherein the first substrate and the second substrate are oppositely arranged, . The pixel electrodes in the first substrate in the liquidcrystal panel are the plurality of blocky electrodes, so that when the liquid
crystal handwriting board is in the erasing mode, the driving
assembly electrically connected with the liquid crystal panel can apply pixel
voltage to the blocky pixel electrodes in the to-be-erased area based on the position information of the to-be-erased area; so that a
voltage difference is formed between the pixel
electrode in the to-be-erased area and the common
electrode, liquid crystal molecules in the to-be-erased area in the liquid crystal layer are rearranged under the action of the
voltage difference, thelocal area of the liquid crystal handwriting board can be erased, and the use flexibility of the liquid crystal handwriting board is improved.