CN1715966A

CN1715966A - Color LCD filter and its laminating and cutting process

Info

Publication number: CN1715966A
Application number: CN 200410049788
Authority: CN
Inventors: 徐承深
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-29
Filing date: 2004-06-29
Publication date: 2006-01-04

Abstract

The laminating and cutting process of making color LCD filter includes the following steps: laminating red resin sheets, green resin sheets, blue resin sheets and black pixel isolating resin sheets in fixed order, and hot pressing or adhering to form compound laminated cube; cutting the cube transversely into compound red, green and blue filter sheets with color filter grains and longitudinal black cutting lines; and printing transverse black cutting line in the same interval as the longitudinal black lines on one side of each compound filter sheet. The present invention has simple production process, high production efficiency and low cost.

Description

Method is made in a kind of color LCD optical filter and folded cutting

Technical field

The present invention relates to a kind of color LCD display device, relate in particular to a kind of color LCD optical filter (Colour Filter) and method for making.

Background technology

Traditional color LCD optical filter is by printing on substrate or the production (by the technology of light shield, multiexposure, multiple exposure) by similar integrated circuit, generates the colored line technology of filtering and makes.Described complex manufacturing, process equipment costliness, yield rate are low, cause product processed cost costliness.

Summary of the invention

Method is made in a kind of color LCD optical filter of the present invention and folded cutting, can solve the high and low problem of yield rate of traditional color LCD optical filter cost of manufacture.

The method for making of a kind of color LCD optical filter of the present invention is: with the monochromatic monolithic resin sheet of red, green, blue three looks, repeating superposition by fixing order arranges, be added with one deck black picture element separation layer resin sheet between the resin sheet of every group of red, green, blue three looks, by hot pressing or gluing method, laminate into compound resin cube; Thinly slice the compound color filter of red, green, blue three looks of shape more one by one by the cubical plane of structure of described compound resin, described cut surface forms the transparent surface how group red, green, blues colour is filtered lines and vertical black point secant; Side on compound color filter transparent surface, by filtering the line direction perpendicular to the red, green, blue colour, the uniform distances of filtering line according to black is printed with horizontal black point secant.

The method for making of aforesaid a kind of color LCD optical filter, described red, green, blue, black compound resin layer are to make compound resin cube by the mode of spraying.

The method for making of aforesaid a kind of color LCD optical filter, the thickness of described monochromatic resin lamella is the size of include monochrome pixels, as 0.06mm.The method for making of aforesaid a kind of color LCD optical filter, with red, green, blue, the black individual layer color filter that makes, again by the corresponding one by one status requirement of the order of colored filter line, and after accompanying black compound resin layer between every layer of individual layer color filter, the cube of hot pressing or gluing one-tenth MULTILAYER COMPOSITE color filter, by direction,, form the color LCD optical filter of black point secant again with mutual vertical interlaced along the section cutting perpendicular to the individual layer color filter.

A kind of color LCD optical filter, the cross section perpendicular optical filtering direction of optical filter forms the color LCD optical filter with colored filter line transparent surface and vertical black point secant by red, green, blue, the hot pressing successively of black monochrome monolithic resin bed, gluing or spraying; On the optical filter surface, perpendicular to red, green, blue, black colored filter line direction, the same intervals of filtering line by black is printed with horizontal black point secant layer.

Aforesaid a kind of color LCD optical filter, in the section of optical filter, vertical black point secant perpendicular to the monochromatic monolithic resin bed formation of black in red, green, blue, the black colored filter line, and by the same intervals distance, be provided with the horizontal black point secant that the monochromatic monolithic resin bed of horizontal black constitutes, described black point secant forms grid in length and breadth.

The present invention compares with traditional product and production technology, has following advantage and good effect:

1, production equipment and technology are simple, and production cost is low;

2, the qualification rate height of product can improve the efficient of production effectively.

Description of drawings

Fig. 1 is a colored monochromatic lamella overlaying structure synoptic diagram in a kind of color LCD optical filter stack manufacture craft of the present invention.

Fig. 2 is the color filter structural representation that single sheet is finished in cutting in a kind of color LCD optical filter stack manufacture craft of the present invention.

Fig. 3 is a structural representation after the MULTILAYER COMPOSITE of a kind of color LCD color filter of the present invention.

Embodiment

The structure of a kind of color LCD optical filter of the present invention can be referring to accompanying drawing:

Fig. 1 reflection be the product structure synoptic diagram of the first step manufacture craft of optical filter, among Fig. 1 by red, green, blue, black four kinds of

color resin flakes

1,2,3,4, repeated arrangement successively, through hot pressing or gluing formation lamination, described lamination can also be formed by spraying.Described

resin flake

1,2,3,4 thickness are (or according to the decision of the size of pixel) more than 0.01mm

Fig. 2 is the lamination cube with Fig. 1, and the cut surface that becomes along vertical resin flake direction crosscut is the color filter of colored filter line, in colour filter line direction, with black filter line identical distance, is printed with the black picture element cut-off rule in its Surface Vertical.Individual layer color filter among Fig. 2 both can become the color LCD optical filter that meets request for utilization.

Fig. 3 is with the individual layer color filter among Fig. 2 (this moment, the thickness of color filter was the size of colour element), carry out the multilayer stack once more, the resin sheet that adds one deck black between every layer, the thickness of this black resin sheet is identical with black resin chip size among Fig. 1, through hot pressing or gluing formation MULTILAYER COMPOSITE color filter.Should be in the stack with the filter of the colour in every individual layer color filter line by aliging with color requirement one to one.Cut once more after forming new cube, final production goes out to meet the color filter of request for utilization.Accompany the cut-off rule resin bed 5 of black among Fig. 3 between every individual layer color filter, the dotted line among the figure is a line of cut, and arrow is depicted as secondary cut direction.

The production stage (embodiment) of the chromatic color filter (Colour Filter) that folded cutting method production color liquid crystal is used is 128*RGB*160 to produce pixel count, and the mobile phone of 1.9 English inch is an example with the color filter of color LCD:

Pixel Dimensions: 241 μ m*241 μ m;

Each pixel is made of the cut-off rule of red, green, blue look and a black, supposes according to color LCD screen vertical direction, and in a pixel, these four kinds of shared sizes of color are respectively 60 μ m.The transparent optical that has 0.25 μ m between four kinds of colors is not with glue (if adopt another kind of method of the present invention: pressure sintering then can have this part transparent optical glue);

Production run:

One, the preparation of red, green, blue, black resin, the thermal expansivity of these four kinds of resin manufactured goods should be identical, and the colour code of red, green, blue look should meet user's request for utilization.The preparation of resin should be finished in the ultrapurification workshop;

Two, aforementioned four kinds of prepared resins are processed into separately the thin slice of 60 μ m thickness respectively, these thin slices will roll into tubbiness with the wide band shape of 45mm, and the centre is one and is beneficial to the steel quill shaft that machinery is installed usefulness that every can be rolled up length is more than the 800m.All process should be finished in the ultrapurification environment;

Three, make the colour filter piece: on a rotary processing production line that has 10 stations, carry out the processing of following process:

1, on station, with the resin flake of black, from the black spool, tiling is placed on the processing platform, and length is 1000mm;

2, processing platform rotates on No. two stations, sprays glue by mechanical arm on the black resin thin slice;

3, processing platform rotates on No. three stations, by the mechanical arm red resin thin slice that tiles on the black resin thin slice;

4, processing platform rotates on No. four stations, rolls the red resin thin slice by mechanical arm by fixing power, makes to combine closely between the resin sheet and can guarantee that the thickness of glue-line is 0.25 μ m.When spreading a kind of resin flake on another kind of resin flake, note air not being brought in the glue-line, in order to avoid cause bubble, go out waste product;

5, processing platform rotates on No. five stations, sprays glue by mechanical arm on the red resin thin slice;

6, processing platform rotates on No. six stations, by the mechanical arm green resin thin slice that tiles on the red resin thin slice;

7, processing platform rotates on No. seven stations, rolls the green resin thin slice by mechanical arm by fixing power, makes and combines closely between the resin sheet;

8, processing platform rotates on No. eight stations, sprays glue by mechanical arm on the green resin thin slice;

9, processing platform rotates on No. nine stations, by the mechanical arm blue resins thin slice that tiles on the green resin thin slice;

10, processing platform rotates on No. ten stations, rolls the blue resins thin slice by mechanical arm by fixing power, makes and combines closely between the resin sheet;

11, processing platform rotates on the ride on Bus No. 11 station, sprays glue by mechanical arm on the blue resins thin slice;

12, processing platform rotates on station once more, by the mechanical arm black resin thin slice that tiles on the blue resins thin slice;

Repeat the step 128 time of 1-12, it is wide to finish a 40mm who is stacked by red, green, blue, black resin thin slice, the rectangular parallelepiped that 1000mm is long.

Four, cube needs to leave standstill a period of time in the environment of a constant temperature, to guarantee the curing of optical lens gelatin;

Five, section.The cube that processes is placed on the microtome, vertically cuts, make the thin slice cut out constitute by 128 groups of black, red, green, blue vitta lines along section.The thickness of section can be determined according to actual needs, (fold the method for cutting as 30 μ m or 50 μ m thickness if adopt secondary, then slice thickness should equate with the size of pixel, as present embodiment, if adopt the folded cutting method of secondary, slice thickness should be 180 μ m) so that in the future this film is attached to above the LCD.Adopt method of printing, on the color filter that cuts, according to direction perpendicular to the red, green, blue color fringe, print one group (160) horizontal, the pixel isolation line of parallel black each other, it is identical with aforesaid black resin sheet role in the final color filter that is processed into that this black is isolated line role.The width of this blackstreak is 60 μ m, and the spacing of per two blackstreaks is 181 μ m.After the blackstreak drying to be printed, promptly finished the processing of 1.9 inches color filter blank sheets.(if adopt the folded cutting method of secondary, then the resin flake of the 160 180 μ m that need will cut is according to identical clause direction, with the blackstreak limit is benchmark, insert the black foil of 60 μ m thickness between adjacent two, being used for bonding used optical lens gelatin thickness in the middle of per two resin flakes is 0.5 μ m, according to the technology of once folding cutting method, carry out lamination once more, ground floor is still done benchmark with the thin dish of black, and the cube that lamination is good is made final chromatic color filter once more along cross sectional slice)

Six, make benchmark with the blackstreak at edge, color filter is done shaping handle.Make it meet the dimensional requirement of 1.9 inches 128*RGB*160 color LCDs.

Seven, the color filter of shaping after qualified will finally be finished the processing of color liquid crystal with the optics transparent sticker to LCD.

Claims

1, method is made in a kind of folded cutting of color LCD optical filter, it is characterized in that: with the monochromatic monolithic resin sheet of red, green, blue three looks, repeating superposition by fixing order arranges, be added with one deck black picture element separation layer resin sheet between the resin sheet of every group of red, green, blue three looks, by hot pressing or gluing method, laminate into compound resin cube; Thinly slice the compound color filter of red, green, blue three looks of shape more one by one by the cubical plane of structure of described compound resin, described cut surface forms the transparent surface how group red, green, blues colour is filtered lines and vertical black point secant; Side on compound color filter transparent surface, by filtering the line direction perpendicular to the red, green, blue colour, the uniform distances of filtering line according to black is printed with horizontal black point secant.

2, the method for making of a kind of color LCD optical filter as claimed in claim 1 is characterized in that: described red, green, blue, black compound resin layer are to make compound resin cube by the mode of spraying.

3, the method for making of a kind of color LCD optical filter as claimed in claim 1 is characterized in that: the thickness of described monochromatic resin lamella is the size of include monochrome pixels.

4, the method for making of a kind of color LCD optical filter as claimed in claim 1, it is characterized in that: with red, green, blue, the black individual layer color filter that makes, again by the corresponding one by one status requirement of the order of colored filter line, and after accompanying black compound resin layer between every layer of individual layer color filter, the cube of hot pressing or gluing one-tenth MULTILAYER COMPOSITE color filter, by direction,, form the color LCD optical filter of black point secant again with mutual vertical interlaced along the section cutting perpendicular to the individual layer color filter.

5, a kind of color LCD optical filter, it is characterized in that: the cross section perpendicular optical filtering direction of optical filter forms the color LCD optical filter with colored filter line transparent surface and vertical black point secant by red, green, blue, the hot pressing successively of black monochrome monolithic resin bed, gluing or spraying; On the optical filter surface, perpendicular to red, green, blue, black colored filter line direction, the same intervals of filtering line by black is printed with horizontal black point secant layer.

6, a kind of color LCD optical filter as claimed in claim 5, it is characterized in that: in the section of optical filter, vertical black point secant perpendicular to the monochromatic monolithic resin bed formation of black in red, green, blue, the black colored filter line, and by the same intervals distance, be provided with the horizontal black point secant that the monochromatic monolithic resin bed of horizontal black constitutes, described black point secant forms grid in length and breadth.