CN104669772A

CN104669772A - Printing relief block

Info

Publication number: CN104669772A
Application number: CN201510122746.4A
Authority: CN
Inventors: 杨发禄; 张俊瑞
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2015-03-19
Filing date: 2015-03-19
Publication date: 2015-06-03

Abstract

The invention relates to the technical field of display, in particular to a printing relief block. The printing relief block comprises a plurality of valid printing areas which are arranged on the printing relief block, wherein an invalid printing area is arranged between every two adjacent valid printing areas; a pattern of a printing body in each valid printing area is quadrangular; a bump which extends outwards is arranged at each of the four top corners of the quadrangular printing body; a plurality of bump units are uniformly distributed on the printing body and bumps. According to the printing relief block provided by the invention, the bump which extends outwards is additionally arranged at each of the four top corners of the quadrangular printing body of an effective display area, an orienting material can be uniformly printed on a glass substrate, the phenomenon that poor corner displaying is caused due to the fact that an oriented film is baffled at a corner position by a metal circuit and cannot be diffused is avoided, and display quality is improved.

Description

A kind of relief printing

Technical field

The present invention relates to Display Technique field, particularly relate to a kind of relief printing.

Background technology

Relief printing can be used for carrying out various printing, and the application in the production process of LCDs is also very extensive.Its Main Function is when producing printing direction-orienting films in LCDs process, raised relief printing method is utilized to be printed onto on glass substrate by oriented material (PI), form alignment films on the glass substrate, thus liquid crystal molecule can be made to arrange on the glass substrate according to certain rules.With reference to figure 1, operation oriented material being printed onto glass substrate is: anilox roll 1 (anilox roll) is rotated counterclockwise, print roller 2 (printing roll) turns clockwise, and drive the relief printing 3 on it to turn clockwise simultaneously, glass substrate 4 (glass) is to left movement on board (table) 5, and the linear velocity of anilox roll 1, print roller 2 and board 5 three is identical; In order to oriented material is printed onto on glass substrate, oriented material drips in anilox roll (anilox roll) 1 by nozzle (dispenser) 7, anilox roll 1 is rotated counterclockwise, scraper 6 is motionless, be equivalent to scraper (scraper) 6 scraped in anilox roll 1, oriented material scraped evenly; Meanwhile, print roller (printing roll) 2 drives relief printing 3 wound on it to rotate clockwise, and when relief printing 3 contacts with anilox roll 1, oriented material is transferred on relief printing 3; Then print roller 2 continues to rotate, and glass substrate 4 is also simultaneously to left movement, and when the relief printing 3 in print roller 2 contacts with the glass substrate 4 on board 5, printing material is transferred on glass substrate 4, and glass substrate 4 forms alignment films.

Fig. 2 is the floor map of the relief printing 3 of prior art, and relief printing is made up of, with reference to figure 3 a lot of effectively Printing Zone 31.Fig. 4 be in Fig. 3 effective Printing Zone along the schematic cross-section of a-a ' line; Can find out that cross section, effective Printing Zone is made up of several protuberance and recess, when utilizing toppan printing to be printed onto on glass substrate by oriented material, oriented material is stored in recess, is transferred on glass substrate by oriented material and forms alignment films during printing.

In relief printing nearly all at present, the pattern of effective Printing Zone 31 all relates to orthogonal, as Fig. 3, or on rectangle four angles rounding, to prevent alignment films liquid too severe and formed bad to external diffusion.But along with the raising of product resolution ratio, circumferential metal circuit line is more and more closeer, particularly corner portions, if or according to existing design, when printing, orientation liquid can be stopped by metallic circuit and cannot spread, the edge non-uniform areas of alignment films from effective display area too close to, easily there is corner mura etc. bad, impact display image quality.

Summary of the invention

(1) technical problem that will solve

The object of the present invention is to provide a kind of relief printing, to overcome printing effective district pattern in prior art relief printing for rectangle, orientation liquid is caused easily to be stopped by metallic circuit in the pattern angular side of landing and cannot spread, easily cause alignment films edge non-uniform areas from territory, effective display area too close to, and then it is bad that corner display easily occurs, and affects the defects such as display quality.

(2) technical scheme

For solving the problem, the invention provides a kind of relief printing, comprise: described relief printing arranges multiple effective Printing Zone, invalid Printing Zone is provided with between described adjacent two effective Printing Zones, the pattern printing body in described effective Printing Zone is quadrangle, and four drift angles of quadrangle printing body have outward extending projection;

Described printing body and projection all distribute several protrusion element.

Preferably, described projection semicircular in shape.

Preferably, described half radius of a circle 0.5mm ~ 20mm.

Preferably, described projection is quadrangle.

Preferably, the side size range of described projection is 0.1mm ~ 20mm.

Preferably, four limits of described quadrangle are the camber line to quadrangle inner projection, and described projection is circular arc.

Preferably, the radius of described camber line is 2mm ~ 100mm.

Preferably, the radius of described circular arc is 0.5mm ~ 20mm.

(3) beneficial effect

The invention provides a kind of relief printing, by four drift angles of the quadrangle in effective display area set up the projection extended outward, can equably by oriented material printing on the glass substrate, avoid alignment films corner location by metallic circuit stop cannot spread and formed corner display bad, promote display image quality.

Accompanying drawing explanation

Fig. 1 is the operation structural representation that prior art oriented material is printed onto glass substrate;

Fig. 2 is the floor map of relief printing in prior art;

Fig. 3 is the structural representation of effective Printing Zone in prior art relief printing;

Fig. 4 be in Fig. 3 effective Printing Zone along the schematic cross-section of a-a ' line;

Fig. 5 is effective Printing Zone structural representation in the embodiment of the present invention one relief printing;

Fig. 6 is effective Printing Zone structural representation in the embodiment of the present invention two relief printing;

Fig. 7 is effective Printing Zone structural representation in the embodiment of the present invention three relief printing.

Detailed description of the invention

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.

Embodiment 1

As shown in Figure 5, the invention provides a kind of relief printing, it comprises: described relief printing arranges multiple effective Printing Zone 32, invalid Printing Zone is provided with between described adjacent two effective Printing Zones, the pattern printing body in described effective Printing Zone is quadrangle, and four drift angles of quadrangle printing body have outward extending projection;

Described printing body and projection all distribute several protrusion element.Wherein, the projection semicircular in shape in the present embodiment, its half radius of a circle is preferably 0.5mm ~ 20mm.

If half radius of a circle is too small, then projection position is easily stopped by metallic circuit, does not have the effect of diffusion orientation liquid; If half radius of a circle is excessive, then exceedes the region of effective Printing Zone, caused the waste of printing direction-orienting liquid.

The present embodiment adopts sets up outward extending half-circle projection on four drift angles of quadrangle printing body, because outward extending half-circle projection distance territory, effective display area is far away, the effect of diffusion orientation liquid can be played, the stop due to metallic circuit effectively can be avoided to make corner location printing not go up and produce bad, farthest guarantee the display quality of effective display area.

Embodiment 2

As shown in Figure 6, the difference that the present embodiment and embodiment 1 exist is, the pattern printing body in described effective Printing Zone 33 is quadrangle, and four drift angles of quadrangle printing body have outward extending projection; Projection in the present embodiment is quadrangle, and wherein, the side size range of projection is 0.1mm ~ 20mm.

If the length of side of projection is too small, then projection position is easily stopped by metallic circuit, does not have the effect of diffusion orientation liquid; If the length of side of projection is excessive, then exceedes the region of effective Printing Zone, caused the waste of printing direction-orienting liquid.

The present embodiment adopts sets up outward extending quadrangle projection on four drift angles of quadrangle printing body, because territory, outward extending quadrangle protrusion distance effective display area is far away, the effect of diffusion orientation liquid can be played, can effectively avoid the stop due to metallic circuit that corner location printing is not gone up and produce bad, farthest guarantee the display quality of effective display area.

Embodiment 3

As shown in Figure 7, the difference that the embodiment of the present invention and embodiment 1 exist is, printing body in effective Printing Zone 34 is quadrangle, four limits of described quadrangle are the camber line to quadrangle inner projection, described projection is circular arc, wherein, the radius of described camber line is 2mm ~ 100m, and the radius of described circular arc is 0.5mm ~ 20mm.

The present embodiment printing body adopts the quadrangle of given shape, its four drift angles set up outward extending circular arc projection, because territory, outward extending circular arc protrusion distance effective display area is far away, the effect of diffusion orientation liquid can be played, the stop due to metallic circuit effectively can be avoided to make corner location printing not go up and produce bad, farthest guarantee the display quality of effective display area.

Relief printing provided by the invention, by four drift angles of the quadrangle in effective display area set up the projection extended outward, can equably by oriented material printing on the glass substrate, avoid alignment films corner location by metallic circuit stop cannot spread and formed corner display bad, promote display image quality.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.

Claims

1. a relief printing, it is characterized in that, comprise: described relief printing arranges multiple effective Printing Zone, invalid Printing Zone is provided with between described adjacent two effective Printing Zones, the pattern printing body in described effective Printing Zone is quadrangle, and four drift angles of quadrangle printing body have outward extending projection;

2. relief printing as claimed in claim 1, is characterized in that, described projection semicircular in shape.

3. relief printing as claimed in claim 2, is characterized in that, described half radius of a circle 0.5mm ~ 20mm.

4. relief printing as claimed in claim 1, it is characterized in that, described projection is quadrangle.

5. relief printing as claimed in claim 4, it is characterized in that, the side size range of described projection is 0.1mm ~ 20mm.

6. relief printing as claimed in claim 1, it is characterized in that, four limits of described quadrangle are the camber line to quadrangle inner projection, and described projection is circular arc.

7. relief printing as claimed in claim 6, it is characterized in that, the radius of described camber line is 2mm ~ 100mm.

8. relief printing as claimed in claim 6, it is characterized in that, the radius of described circular arc is 0.5mm ~ 20mm.