A flexible liquid crystal display into liquid crystal and sealing production process

Abstract

The invention discloses a liquid crystal adding and sealing manufacturing technology for flexible liquid crystal display. The technology comprises the first step of placing a rigid cushion on a flexible substrate material surface of a liquid crystal empty box; the second step of exerting pressure on the rigid cushion so that the rigid cushion can be attached to the flexible substrate material surface to form into one with the liquid crystal empty box, and subsequently maintaining the pressure stable; the third step of continuing to maintain the pressure stable, injecting liquid crystal into the liquid crystal empty box, moving off the rigid cushion after the liquid crystal empty box is filled with the liquid crystal, and conducting sealing treatment on the liquid crystal empty box which is filled with the liquid crystal. According to liquid crystal adding and sealing manufacturing technology for flexible liquid crystal display, by arranging the rigid cushion on the flexible substrate material surface of the liquid crystal empty box, and exerting pressure on the rigid cushion, the rigid cushion and the liquid crystal empty box are formed into one, in this way, the texture of the flexible substrate material can be ingeniously changed, thus in the process of injecting the liquid crystal into the liquid crystal empty box, deformation cannot occur, the amount of the liquid crystal in the liquid crystal empty box is improved, unnecessary liquid crystal flow is reduced, the flatness of liquid crystal displaying in the flexible substrate material is improved, and the opportunity of generating bubbles is reduced.

Description

technical field [0001] The invention relates to a liquid crystal display production process, in particular to a liquid crystal filling and sealing production process for a flexible liquid crystal display. Background technique [0002] In general glass-substrate liquid crystal displays, there is no need to control the cell thickness of the liquid crystal empty cell when filling the liquid crystal in production, so after filling the liquid crystal, the liquid crystal empty cell will form a slightly bulging state. Such as figure 1 As shown, the liquid crystal empty box is mainly composed of upper and lower glass substrates 1, beads 2 and frame glue 3 between the upper and lower glass substrates. The lower end of the liquid crystal empty box forms a liquid crystal entry opening, d 0 is the cell thickness of the liquid crystal cell that is not filled with liquid crystal (that is, the distance between the two glass substrates). When the liquid crystal is filled with vacuum, the d...

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Problems solved by technology

[0004] (1) During the process of liquid crystal flowing in, the distance between the two flexible substrates 1' will be changed by d 0 change to d 1 / d 2 , which will affect the alignment of the liquid crystal and the effect of the beads (including crushing and scratches, etc.), and will eventually become a bad product that affects the function or appearance

[0005] (2) After entering the liquid crystal, a pressure sealing process is required. Under the pressure of the liquid crystal cell, the thickness of the cell will change from d 1 / d 2 change to d t , d t less than d 1 / d 2 Therefore, excessive cell thickness changes can also form excessive liquid crystal flow, which can easily cause bead bubbles, bead 2 movement and liquid crystal alignment problems

[0006] (3) When the liquid crystal empty cell is filled with liquid crystal, since the shape of the liquid crystal empty cell can be changed greatly (including the micro-bending direction of the cell), there may be a shape deviation (such as forming a curved surface), which will affect the finished product. product effect

[0007] (4) Excessive liquid crystals may not be completely balanced even through pressurized sealing, and the thickness of the box after completion is uneven in different regions

[0011] The above items will cause the beads in the liquid crystal empty box to fall and move, resulting in a change in the thickness of the box and increasing the uneven ratio

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