Summary of the invention
The object of the present invention is to provide a kind of frame-sealing glue coating method and display panels of display panels, make and the thick homogenising of box of panel periphery reduce because of the envelope frame glue peripheral bad phenomenon that produces in uneven thickness the display effect of raising LCD.
To achieve these goals, the invention provides a kind of frame-sealing glue coating method of display panels, comprising:
According to the different dispensing areas of the different definite envelope of the subregion frame glue of the thickness of panel edge, said subregion comprises area of grid, data area, white space and contact area;
The thickness of the subregion that comprises according to each dispensing area is confirmed the area thickness of said each dispensing area respectively;
Calculate the thickness of the required envelope frame glue of said different dispensing area respectively according to the thickness of the inner liquid crystal of the area thickness of said each dispensing area and panel;
Adopt frame enclosing gum coating apparatus on the said different dispensing areas of face plate edge, to be coated with the envelope frame glue of desired thickness respectively.
The present invention also provides a kind of display panels; Comprise the top glass substrate and the lower glass substrate that are oppositely arranged; And the envelope frame glue pattern that is formed on the edge of said top glass substrate and said lower glass substrate; The subregion correspondence of the different-thickness of said edge is provided with the envelope frame glue pattern of different-thickness, and said subregion comprises area of grid, data area, white space and contact area; It is thick that said display panels has a uniform liquid crystal cell; The thickness of said envelope frame glue pattern is for definite according to the thickness of the inner liquid crystal of the area thickness of each dispensing area and panel, and said dispensing area is for definite according to the different subregion of the thickness of panel edge.
The frame-sealing glue coating method of a kind of display panels provided by the invention and display panels; The thickness of corresponding envelope frame glue is set according to the thickness of the dispensing area of face plate edge diverse location; Adopt the repeatedly mode of coating, apply the envelope frame glue of different-thickness, make dispensing area thickness after applying envelope frame glue of diverse location equate at the dispensing area of diverse location; Make the thick homogenising of box of panel periphery; And make that the inner box of face plate edge and panel is thick consistent, reduced because of the envelope frame glue peripheral bad phenomenon that produces in uneven thickness the display effect that has improved greatly.
Embodiment
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Fig. 3 is the process flow diagram of the frame-sealing glue coating method embodiment of display panels of the present invention, and as shown in Figure 3, the frame-sealing glue coating method of display panels provided by the invention comprises the steps:
Step 301 is according to the different dispensing areas of the different definite envelope of the subregion frame glue of the thickness of panel edge.
As shown in Figure 1 again; The position of envelope frame glue 1 coating is the edge of LCD panel; The edge of LCD panel comprises data (Data) limit 2, grid (Gate) limit 3, data opposite side 4 and grid opposite side 5, and owing to the structure of each position in each limit is different, is made up of various circuit such as grid circuit, data circuit, repair circuit and test circuits respectively; The structure of circuit is also different, then comprises a plurality of different subregions at the edge of LCD panel.This step is confirmed the different dispensing areas of envelope frame glue for the subregion that comprises according to the face plate edge position; A dispensing area can be made up of a plurality of continuous subregions; The purpose of dividing different dispensing areas is the envelope frame glue at different dispensing area coating different-thickness; The thickness of envelope frame glue is relevant with the thickness of the face plate edge of dispensing area position, behind the envelope frame glue of coating different-thickness, makes that the thickness at whole front panel edge is uniform.Subregion can be data area (Data Area), area of grid (Gate Area), white space (Blank Area) or contact area (Contact Area); Wherein, Blank area can arrange with Data Area for the inner subregion of Data opposite side side by side; Constitute the Data opposite side; Contact Area can arrange with Gate Area for the inner subregion in Gate limit side by side, constitutes the Gate limit.The subregion that different dispensing area comprised of the LCD face plate edge of different model is inequality; With a certain model LCD is that example describes; Data limit at the dispensing area of this kind model LCD panel comprises Data Area; The Gate limit comprises Gate Area and Contact Area, and the Data opposite side comprises Data Area and Blank Area, and comprises Gate Area and Contact Area at the Gate opposite side.The thickness of all subregion is unequal; Wherein, the thickness of Gate Area can be 0.3~2.5 micron, and the thickness of Data Area can be 0.2~2.4 micron; The thickness of Blank Area can be 0.4~1.9 micron, and the thickness of Contact Area can be 0.9~2.8 micron.As shown in table 1 below is the thickness table of comparisons of all subregion provided by the invention, and each regional thickness is preferred value in the table 1.
From table 1, can find out; The thickness of each subregion self is different; Differing of having is bigger; Like the thickness difference between Blank Area and the Contact Area is 0.6 micron, and because the subregion that dispensing area comprised of each position is inequality, then the thickness of each dispensing area differs bigger sometimes.Be that example describes still with above-mentioned LCD panel; Unify the envelope frame glue that coating process applies the LCD face plate edge if adopt existing envelope frame glue; The thickness of the envelope frame glue that each dispensing area is coated with at the edge of LCD panel is identical; The equal diameters of chock insulator matter in its envelope frame glue then can occur as shown in Figure 2 peripheral badly on Da ta limit, adopt the method that present embodiment provided to apply the generation that envelope frame glue then can overcome peripheral bad phenomenon.
The thickness table of comparisons of table 1 all subregion
The subregion title |
Thickness (micron) |
Gate?Area |
2.18 |
Data?Area |
2.15 |
Blank?Area |
1.84 |
Contact?Area |
2.45 |
The frame-sealing glue coating method of the display panels that present embodiment provided is the envelope frame glue at different dispensing area coating different-thickness; And the thickness of the envelope frame glue that different dispensing area was coated with is relevant with the area thickness of this dispensing area; The area thickness of a certain dispensing area is relevant with the thickness of the subregion that it comprises, and therefore when implementing this method, need confirm the subregion that each dispensing area comprised of this face plate edge.Can analyze the structure of this model LCD panel according to the model of LCD, thereby confirm that the subregion that each dispensing area comprises is any several kinds combination of Data Area, Gate Area, Contact Area, Blank Area or above-mentioned subregion.
Step 302, the thickness of the subregion that comprises according to each dispensing area are confirmed the area thickness of each dispensing area respectively.
After the subregion that each dispensing area with the LCD face plate edge comprises is confirmed, with reference to the corresponding thickness of each sub regions that above-mentioned table 1 provides, the area thickness of coming to confirm successively each dispensing area.The area thickness of indication is the thickness of this dispensing area self here, the thickness that promptly is made up of each circuit in this zone etc.Suppose that the subregion that certain dispensing area comprises is Gate Area and Contact Area; Then the area thickness of this dispensing area is the weighting sum of area thickness of area thickness and the Contact Area of the Gate Area that provides in the last table; Wherein, Weighted value is relevant by all subregion shared area in each dispensing area, if certain subregion shared area in dispensing area is bigger, then its corresponding weighted value is bigger.And the like, confirm the area thickness of all the other dispensing areas.
Step 303 is calculated the thickness of the required envelope frame glue of different dispensing areas respectively according to the thickness of the inner liquid crystal of the area thickness of each dispensing area and panel.
Thickness according to the required envelope frame glue of the area thickness of each dispensing area of confirming and each dispensing area of THICKNESS CALCULATION of the liquid crystal of LCD panel inside; The thickness of the liquid crystal that the thickness of the envelope frame glue that on each dispensing area, is coated with and the area thickness of this dispensing area and LCD panel are inner is relevant, and computing method can be the area thickness of thickness-this dispensing area of the thickness of the liquid crystal of the thickness of the envelope frame glue that certain dispensing area is required=LCD panel interior pixels electrode zone+LCD panel interior pixels electrode zone thin layer.Certainly present embodiment is not limited to this computing method; Also can adopt other computing method to obtain the thickness of the required envelope frame glue of each dispensing area; As long as the thickness of the envelope frame glue that make to apply is inversely proportional to the area thickness of dispensing area basically; The thickness that is certain dispensing area self is big more, then in order to make the thick maintenance of box of LCD even, gets the THICKNESS CONTROL of the envelope frame glue of coating above that smaller.Wherein, The thickness of the liquid crystal that the LCD panel is inner is the thickness of the liquid crystal that in molding process, between two glass substrates, pours into; The image that liquid crystal is used for LCD shows, and traditional CRT monitor relies on the phosphor powder on the cathode-ray tube (CRT) emitting electrons bump screen to come display image.
Step 304 adopts frame enclosing gum coating apparatus on the different dispensing areas of face plate edge, to be coated with the envelope frame glue of desired thickness respectively.
After the thickness of confirming the envelope frame glue that good each dispensing area is required; Then adopt frame enclosing gum coating apparatus on each dispensing area of LCD face plate edge, to be coated with the envelope frame glue of desired thickness respectively according to this thickness; Wherein, the envelope frame glue of desired thickness is the thickness of the required envelope frame glue of each dispensing area that step 303 calculated.The envelope frame mucilage binding that this step will configure is gone in the frame enclosing gum coating apparatus; Each dispensing area at counter plate edge adopts the envelope frame glue of corresponding thickness to be coated with; Make that the LCD face plate edge integral thickness after the coating is uniformly, and consistent with the thickness of liquid crystal of LCD panel inside.
Further; Present embodiment is provided with according to the different dispensing areas of the LCD face plate edge thickness to the envelope frame glue that applies; The thickness of envelope frame glue can be decided by the diameter of the chock insulator matter that is comprised in the envelope frame glue, and the diameter of chock insulator matter is big more, and the thickness of envelope frame glue is also big more.Wherein, chock insulator matter can be spun glass, can be the silicon ball, can be gold goal, can also be any several kinds combination of spun glass, silicon ball, gold goal.Therefore; Present embodiment can reach the envelope frame glue of respective thickness through the diameter that chock insulator matter is set, and then before step 304, can also comprise the steps: at first; Thickness according to the required envelope frame glue of different dispensing areas is selected the attached envelope frame glue that the chock insulator matter of corresponding diameter is arranged; Because the thickness of envelope frame glue is decided by the diameter of wherein attached chock insulator matter, the different-thickness of envelope frame glue is corresponding to the different-diameter of chock insulator matter, therefore when the envelope frame glue of selecting after required; Select the diameter of the chock insulator matter corresponding, promptly select the attached envelope frame glue that the chock insulator matter of corresponding diameter is arranged with thickness.Secondly; The envelope frame glue of selecting is added in the frame enclosing gum coating apparatus; After the thickness of the required envelope frame glue of each dispensing area of confirming the LCD face plate edge, select the wherein diameter of chock insulator matter according to the envelope frame glue of required different-thickness, to reach the thickness of required envelope frame glue; After the selection of completion to envelope frame glue, the envelope frame glue of selecting is added in the frame enclosing gum coating apparatus.
When the coating of the envelope frame glue that carries out present embodiment, can adopt the mode of the envelope frame glue of different-thickness being carried out the substep coating, also can adopt the mode of coating simultaneously.Particularly, above-mentioned steps 304 can comprise the steps: at first, the envelope frame mucilage binding of different-thickness is gone in the difference storage chamber of frame enclosing gum coating apparatus.Be illustrated in figure 4 as the simplified structure synoptic diagram of the frame enclosing gum coating apparatus among the frame-sealing glue coating method embodiment of display panels of the present invention; Comprise a plurality of storages chamber 41 in the frame enclosing gum coating apparatus; And a plurality of nozzles 42 that are positioned at storage 41 belows, chamber; This step can be respectively charged into the envelope frame glue of the different-thickness that has disposed in the different storage chambeies, also can the envelope frame mucilage binding of same thickness be gone in the different storage chambeies.Secondly, utilize different storage chambeies, adopt the mode that is coated with step by step or is coated with simultaneously on the different dispensing areas of face plate edge, to be coated with the envelope frame glue of desired thickness.When utilizing frame enclosing gum coating apparatus that envelope frame glue is coated with; Adopt the mode of substep coating; The envelope frame glue that thickness is different is coated on each dispensing area of the correspondence of LCD face plate edge respectively; Can the envelope frame glue of the same thickness that is arranged in different storages chamber be coated on corresponding dispensing area simultaneously, and then be coated with the envelope frame glue of all the other thickness respectively.Be depicted as several kinds of different structure synoptic diagram of LCD panel among the frame-sealing glue coating method embodiment of display panels of the present invention like Fig. 5~Fig. 8, difference is that mainly the thickness of envelope frame glue of the different dispensing areas of each LCD face plate edge is different.As shown in Figure 5, the thickness of the envelope frame glue that A1 limit, A2 limit and A4 limit are required is identical, has only the required envelope frame glue in A3 limit different with its excess-three limit.When then adopting the frame-sealing glue coating method of the display panels that present embodiment provides to be coated with; The envelope frame glue of same thickness that can A1 limit, A2 limit and A4 limit is corresponding places the same storage chamber of frame enclosing gum coating apparatus; In coating time-division steps in sequence this three limit is coated with; Also can the envelope frame glue of correspondence be placed different storage chambeies respectively, this three limit is coated with, perhaps simultaneously this three limit is coated with in coating time-division steps in sequence; Accomplish after the application step on A1 limit, A2 limit and A4 limit, carry out the coating on A3 limit more separately.As shown in Figure 6, similar with the coating method of Fig. 5 of above-mentioned introduction, B1 limit in the LCD panel and B3 limit adopt the envelope frame glue of same thickness to be coated with, and B2 limit and B4 limit then adopt the envelope frame glue of another desired thickness to be coated with.As shown in Figure 7, the C1 limit in the LCD panel, C2 and C5 limit adopt the envelope frame glue of same thickness to be coated with, and C3 limit and C4 limit then adopt the envelope frame glue of another desired thickness to be coated with.As shown in Figure 8, D1 limit in the LCD panel and D3 limit adopt the envelope frame glue of same thickness to be coated with, and the D2 limit adopts the envelope frame glue of another thickness to be coated with, and D4 adopts the envelope frame glue of another thickness to proceed coating.Present embodiment is that example describes with these figure only, and the concrete coating method of the frame-sealing glue coating method of display panels provided by the invention is not limited to this several kinds of modes, repeats no more here.
Perhaps; For the coating method of the envelope frame glue of different-thickness, can also adopt the mode of coating simultaneously, the envelope frame mucilage binding that is about to different-thickness is gone in the difference storage chamber of frame enclosing gum coating apparatus; Utilize different storages chamber, the envelope frame glue of different-thickness is coated on simultaneously the dispensing area of correspondence position.It is to be noted; It will be appreciated by those skilled in the art that; When adopting the coating method of coating simultaneously; Need make amendment a little to the structure of frame enclosing gum coating apparatus shown in Figure 4, conversion is carried out in the position that is about to dispense tip, so that the dispense tip of coating is aimed at the limit that dispensing area belongs to respectively simultaneously.
In addition, the frame-sealing glue coating method of the display panels that present embodiment provides also can be applied to the batch coating of LCD panel, the coating of promptly simultaneously a plurality of LCD panels being sealed frame glue.Fig. 9 is the schematic layout pattern of the LCD panel in the frame enclosing gum coating apparatus among the frame-sealing glue coating method embodiment of display panels of the present invention; As shown in Figure 9; LCD panel A~M that can model is identical all places frame enclosing gum coating apparatus, the coating that frame enclosing gum coating apparatus seals frame glue to 12 LCD panels simultaneously.The thickness of supposing the envelope frame glue that Data limit, Data opposite side and the Gate opposite side of LCD panel A~M is required is 4.6 microns; The thickness of the envelope frame glue that the Gate limit is required is 5.0 microns; Being that 4.6 microns envelope frame mucilage binding is gone in wherein three storage chambeies as shown in Figure 4 with thickness then, is that 5.0 microns envelope frame mucilage binding is gone in the another one storage chamber with thickness.When being coated with; Earlier LCD panel A, B and C are aimed in the storage chamber of frame enclosing gum coating apparatus; It is that the nozzles of below, 4.6 microns three storage chambeies are accomplished the coatings to Data limit, Data opposite side and the Gate opposite side of LCD panel A, B and C that thickness is equipped with in utilization, and utilizing then thickness is housed is that the nozzle of 5.0 microns below, another one storage chamber is accomplished the coating to the Gate limit of LCD panel A, B and C.Move the LCD panel then, make the storage chamber aim at LCD panel D, E and F respectively, adopt above-mentioned similar method to accomplish the coating of LCD panel D, E and F and remaining panel.
Present embodiment provides a kind of frame-sealing glue coating method of display panels; The thickness of corresponding envelope frame glue is set according to the area thickness of the dispensing area of LCD face plate edge diverse location; Adopt the repeatedly mode of coating, apply the envelope frame glue of different-thickness, make dispensing area thickness after applying envelope frame glue of diverse location equate at the dispensing area of diverse location; Make the thick homogenising of box of panel periphery; And make that the inner box of LCD face plate edge and LCD panel is thick consistent, and reduced because of the envelope frame glue peripheral bad phenomenon that produces in uneven thickness, improved the display effect of LCD greatly.
Figure 10 is the cross sectional representation of display panels among the display panels embodiment of the present invention; Shown in figure 10; Present embodiment provides a kind of display panels; Comprise the top glass substrate 101 and lower glass substrate 102 that are oppositely arranged, and envelope frame glue 1 figure that is formed on the edge of top glass substrate 101 and lower glass substrate 102, wherein; The subregion correspondence of the different-thickness of edge is provided with the envelope frame glue pattern of different-thickness, and it is thick that display panels has a uniform liquid crystal cell.Envelope frame glue 1 has different thickness.As can be seen from the figure; Because the area B of LCD panel between top glass substrate 101 and lower glass substrate 102 is different with the circuit structure at C place; Make position B form the different dispensing area of thickness with the C place, envelope frame glue 1 is different at the thickness of different dispensing areas, and is relevant with the thickness of dispensing area; After making that coating is accomplished, the thickness of whole LCD panel is uniform.
Present embodiment provides a kind of display panels; The subregion correspondence of face plate edge diverse location is provided with the envelope frame glue pattern of different-thickness; Make the thick homogenising of box of panel periphery; And make that the inner box of LCD face plate edge and LCD panel is thick consistent, and reduced because of the envelope frame glue peripheral bad phenomenon that produces in uneven thickness, improved the display effect of LCD greatly.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging embodiment of the invention technical scheme of relevant art scheme.