CN2435763Y

CN2435763Y - Optical function film colour liquid crystal display board

Info

Publication number: CN2435763Y
Application number: CN 00235325
Authority: CN
Inventors: 李祥龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-18
Filing date: 2000-05-18
Publication date: 2001-06-20
Anticipated expiration: 2010-05-18

Abstract

The utility model relates to a color liquid crystal display board with an optical function film. The utility model is composed of upper and lower two polarizing films (1), a liquid crystal box (2) and a plurality of biaxial tension plastic films (3). The liquid crystal box (2) and the biaxial tension plastic films (3) are compounded between the upper and the lower two polarizing films (1). The biaxial tension plastic films (3) can be compounded on the inner side of a base board (7) of the liquid crystal box (2), and can also be compounded on the outer side of the base board (7) of the liquid crystal box (2). The utility model can also be composed of a lower light reflecting film (4), the liquid crystal box (2), an upper polarizing film (1) and the biaxial tension plastic films (3), or be composed of a reflecting type polarizing film (5), the liquid crystal box (2), the biaxial tension plastic films (3) and a polarized light source (6).

Description

Color LCD board with optical function membrane for colouring

The utility model relates to the liquid crystal display device technical field.

Existing colour LCD device cost height, be difficult to be widely used, and do not need full color to show in applications such as portable data assistance (as mobile phone, beeper), electronic watch, portable electronic game machine, phone set display, ATM (automatic teller machine), regular price-line advertising demonstration and the demonstrations of industrial instrumentation instrument.Therefore, realize that a kind of color LCD board of polychrome cheaply has significant practical applications.

The purpose of this utility model provides a kind of color LCD board with optical function membrane for colouring of lower cost.

For realizing the purpose of this utility model, the technical scheme of taking is:

The color LCD board with optical function membrane for colouring of first kind of form: by two-layer polaroid, liquid crystal cell, several layers bidirectional stretching plastic film constitute up and down, its structure is: liquid crystal cell and several layers bidirectional stretching plastic film are compounded in up and down between the two-layer polaroid, the several layers bidirectional stretching plastic film can be compounded in the base plate for liquid crystal cell inboard, also can be compounded in the outside of base plate for liquid crystal cell.

The color LCD board with optical function membrane for colouring of second kind of form: constitute by lower floor's optical reflection film, liquid crystal cell, upper strata polaroid, several layers bidirectional stretching plastic film, its structure is: liquid crystal cell and several layers bidirectional stretching plastic film are compounded between upper strata polarizing coating and the lower floor's optical reflection film, the several layers bidirectional stretching plastic film can be compounded in the base plate for liquid crystal cell inboard, also can be compounded in the outside of base plate for liquid crystal cell.

The color LCD board with optical function membrane for colouring of the third form: form by one deck reflective polarizer, liquid crystal cell, several layers bidirectional stretching plastic film, polarized light source, its structure is: reflective polarizer, liquid crystal cell are combined with each other, at a side device polarized light source of relative liquid crystal cell, at the optical emission exit device several layers bidirectional stretching plastic film of polarized light source.

The principle of work of the color LCD board with optical function membrane for colouring of said structure: (especially BOPP) has even, stable birefringence through special bidirectional stretching plastic film, owing to the chromatic polarization effect makes the liquid crystal board display color.The intensity that the color that shows is arranged by birefringence size, thickness, the number of plies, direction of optic axis and the liquid crystal aligning of several layers bidirectional stretching plastic film determines jointly, intensity by each position liquid crystal aligning of driving circuit control liquid crystal cell is arranged can make the liquid crystal board of said structure demonstrate the pattern that various different colors distribute.

And existing color liquid crystal comes display color by the device colour filter.For a segmentation display mode that simply need not the dot matrix addressing, can only realize monochromatic the demonstration, for the dot matrix display mode, need to realize the accurate contraposition of liquid crystal greyscale control electrode and three primary colours color-filter unit, in addition, show that a pixel will drive and red, green, blue three three liquid crystal greyscale control electrodes that primary colour unit is corresponding simultaneously, driving circuit is very complicated, and production cost is higher.

Color LCD board with optical function membrane for colouring can realize simply need not the multicolor displaying of a segmentation display mode of dot matrix addressing, the contraposition problem that does not have pixel electrode and colour developing unit for the dot matrix display mode, simultaneously, show a pixel, only need to drive a pixel electrode, its driving circuit only needs to change a little and can meet the demands on general black and white lattice demonstration liquid crystal display drive circuit basis, thereby production cost is lower.This colour developing structure is applicable to the LCD of TN, STN, ECB, HAN, OCB isotype, waits the LCD of segmentation demonstration and dot matrix addressing mode all to be suitable for.

Fig. 1 is the liquid crystal cell structure synoptic diagram;

Fig. 2, Fig. 3, Fig. 4 are the optical function membrane for colouring color liquid crystal plate structure synoptic diagram of 3 embodiment.

Among the figure, the 1st, polaroid, the 2nd, liquid crystal cell, the 3rd, several layers bidirectional stretching plastic film, the 4th, optical reflection film, the 5th, reflective polarizer, the 6th, polarized light source, the 7th, base plate for liquid crystal cell, the 8th, liquid crystal layer.

Following structure drawings and Examples describe:

As accompanying

drawing

2,3,4, shown in, color LCD board with optical function membrane for colouring has three kinds of different structure types:

1, color LCD board with optical function membrane for colouring as shown in Figure 2, by two-layer polaroid (1), liquid crystal cell (2), several layers bidirectional stretching plastic film (3) constitute up and down, its structure is: liquid crystal cell (2) and several layers bidirectional stretching plastic film (3) are compounded in up and down between the two-layer polaroid (1), several layers bidirectional stretching plastic film (3) can be compounded in the inboard of liquid crystal cell (2) substrate (7), also can be compounded in the outside of liquid crystal cell (2) substrate (7).

2, color LCD board with optical function membrane for colouring as shown in Figure 3, constitute by lower floor's optical reflection film (4), liquid crystal cell (2), upper strata polaroid (1), several layers bidirectional stretching plastic film (3), its structure is: liquid crystal cell (2) and several layers bidirectional stretching plastic film (3) are compounded between lower floor's optical reflection film (4) and the upper strata polaroid (1), several layers bidirectional stretching plastic film (3) can be compounded in liquid crystal cell (2) substrate (7) inboard, also can be compounded in the outside of liquid crystal cell (2) substrate (7).

3, color LCD board with optical function membrane for colouring as shown in Figure 4, constitute by one deck reflective polarizer (5), liquid crystal cell (2), several layers bidirectional stretching plastic film (3), polarized light source (6), its structure is: reflective polarizer (5), liquid crystal cell (2) are combined with each other, at a side device polarized light source (6) of relative liquid crystal cell (2), at the optical emission exit device several layers bidirectional stretching plastic film (3) of polarized light source (6).

Claims

1, color LCD board with optical function membrane for colouring is characterized in that:

By two-layer polaroid (1), liquid crystal cell (2), several layers bidirectional stretching plastic film (3) constitute up and down, its structure is: liquid crystal cell (2) and several layers bidirectional stretching plastic film (3) are compounded in up and down between the two-layer polaroid (1), several layers bidirectional stretching plastic film (3) can be compounded in the inboard of liquid crystal cell (2) substrate (7), also can be compounded in the outside of liquid crystal cell (2) substrate (7); Or

Constitute by lower floor's optical reflection film (4), liquid crystal cell (2), upper strata polaroid (1), several layers bidirectional stretching plastic film (3), its structure is: liquid crystal cell (2) and several layers bidirectional stretching plastic film (3) are compounded between lower floor's optical reflection film (4) and the upper strata polaroid (1), several layers bidirectional stretching plastic film (3) can be compounded in liquid crystal cell (2) substrate (7) inboard, also can be compounded in the outside of liquid crystal cell (2) substrate (7); Or

Constitute by one deck reflective polarizer (5), liquid crystal cell (2), several layers bidirectional stretching plastic film (3), polarized light source (6), its structure is: reflective polarizer (5), liquid crystal cell (2) are combined with each other, at a side device polarized light source (6) of relative liquid crystal cell (2), at the optical emission exit device several layers bidirectional stretching plastic film (3) of polarized light source (6).