Liquid crystal display panel

Abstract

The invention provides a liquid crystal display panel. The liquid crystal display panel comprises an upper substrate and a lower substrate that are opposite, a first alignment film arranged at one side, facing the lower substrate, of the upper substrate, a second alignment film arranged at one side, facing the upper substrate, of the lower substrate, a liquid crystal layer between the upper substrate and the lower substrate, and frame rubber arranged between the upper substrate and the lower substrate and enclosing the liquid crystal layer, wherein the frame rubber comprises first frame rubberclose to the liquid crystal layer, second frame rubber far from the liquid crystal layer, and a block wall between the first frame rubber and the second frame rubber, both the first alignment film and the second alignment film are contacted with the first frame rubber and are blocked by the block wall so as to be prevented from spreading out of the frame rubber, therefore, narrow frame of the liquid crystal panel is realized, the alignment films are prevented from absorbing moisture, and the liquid crystal display panel does not display badly in high humidity environment.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display panel. Background technique [0002] Thin Film Transistor (TFT) is the main driving element in current Liquid Crystal Display (LCD) and Active Matrix Organic Light-Emitting Diode (AMOLED). It is related to the display performance of the flat panel display device. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film transistor array substrate (ThinFilm Transistor Array Substrate, TFT Array Substrate) and the color filter (ColorFilter, CF) substrate, and apply pixel voltage on the two substrates respectively. and the common voltage, through the electric field formed between the pixel voltage and the common voltage to c...

AI Technical Summary

Problems solved by technology

At present, most LCD displays use polyimide (PI) as the liquid crystal alignment film, and the PI film will have a part of outflow during the coating process. As the frame becomes narrower, the outflow PI and frame glue will form Overlapping, and if PI flows out of the frame, because PI will absorb water, it will cause poor display of the display device in a high-humidity environment; therefore, we must control the PI from spreading outside the frame, so we need to add a preventive Barrier for PI outflow

However, if the retaining wall is designed between the display (AA) area and the sealant, PI will flow back after encountering the retaining wall, thereby forming a PI reflow area at the edge of the display area, which will cause poor display around the display area.

Images