Liquid crystal box structure of a kind of liquid crystal display

Abstract

The invention discloses a liquid crystal box structure for a liquid crystal display. The liquid crystal box structure for the liquid crystal display comprises a color film substrate (2), a BM layer(3), a liquid crystal area (5), main frame rubber (6), a metal wiring structure (8) and an array substrate (9), and is characterized in that the part, connected with the upper end of the main frame rubber (6), of the BM layer (3) is made into a channel shape to enable the main frame rubber (6) to be embedded into the channels in the BM layer to be connected with the bottom of the color film substrate (2) in a contact mode, and the shape of the channels of the BM layer (3) is identical to that of clearances between metal wires in the metal wiring structure (8) below the BM layer (3). According to the liquid crystal box structure for the liquid crystal display, the contact part, connected with the main frame rubber, of the BM layer is made into the channel shape which is structurally complementary to the metal wire structure in the metal wires, the adhesive force between the top end of the main frame rubber and the BM layer is lowered, and the contact area between the main frame rubber and the color film substrate is enlarged; the purpose of complete light shading is achieved through the overlapped area between the reserved part of the BM layer and the metal wires in the metal wiring structure.

Description

technical field [0001] The invention relates to the technical field of liquid crystal displays, specifically a method for increasing the adhesion between the main frame glue and the color filter substrate while avoiding the detachment of the BM layer from the color filter substrate under the premise of ensuring an aperture ratio ≥ 50%. And realize the liquid crystal cell structure of the liquid crystal display with narrow frame design. Background technique [0002] The structure of a complete liquid crystal cell mainly includes the following parts: the order from top to bottom is the color film polarizer 1, the color film substrate 2, the BM layer 3, the color film side alignment layer 4, the liquid crystal area 5, and the array side The alignment layer 7, the array substrate 9 and the array polarizer 10, and then the liquid crystal region 5 is sealed with the main frame glue 6 along the surroundings of the color filter substrate 2 and the array substrate 9, and a complete l...

AI Technical Summary

Problems solved by technology

The first is the Open design: the main frame glue 6 is located outside the BM layer 3 of the color film substrate 2, without the BM layer 3 blocking, and the UV light can be irradiated from the color film substrate 2 side. The disadvantage of this design is that it requires a wider The width of the border and the design of the small-size panel, especially the narrow border panel, are not applicable. The structural diagram of the Open design is as follows figure 1 As shown; the second is the hardening design of the shadow part, in which the position of the main frame glue 6 corresponds to the BM layer 3 of the color filter substrate 2, and is blocked by the BM layer 3. It needs to be cured by UV light irradiation from the array substrate 9 side. The advantage of this design is that the width of the frame can be greatly reduced, so it is suitable for small-sized panels and narrow-frame panels, but its defect is that the panels of this design are tested in the reliability test - PCT (harsh temperature, saturated humidity, water After steam and pressure), NG is prone to occur. The reason is that the BM layer 3 and the color filter substrate 2 are separated, indicating that the adhesion between the BM layer 3 and the color filter substrate 2 is weak. Another reason may be that the BM layer 3 has a certain The water absorption of the BM layer 3 and the color filter substrate 2 will reduce the adhesion force between the BM layer 3 and the color filter substrate 2. The structural diagram of the hardening design of the shadow part is as follows figure 2 shown

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