CN101846836A - Frame-sealing glue coating method of liquid crystal display panel and liquid crystal display panel - Google Patents
Frame-sealing glue coating method of liquid crystal display panel and liquid crystal display panel Download PDFInfo
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- CN101846836A CN101846836A CN200910081017A CN200910081017A CN101846836A CN 101846836 A CN101846836 A CN 101846836A CN 200910081017 A CN200910081017 A CN 200910081017A CN 200910081017 A CN200910081017 A CN 200910081017A CN 101846836 A CN101846836 A CN 101846836A
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Abstract
The invention discloses a frame-sealing glue coating method of a liquid crystal display panel and the liquid crystal display panel. The frame-sealing glue coating method of the liquid crystal display panel comprises the following steps: determining different coating regions of the frame-sealing glue according to the sub regions with different thicknesses at the edges of the periphery of the panel; respectively determining the region thicknesses of the coating regions according to the thicknesses of the sub regions contained by the coating regions; respectively calculating the thickness of the frame-sealing glue needed by the coating regions according to and the region thickness of the coating regions and the thickness of liquid crystal in the interior of the panel; and respectively coating the frame-sealing glue with needed thickness on the different coating regions at the edges of the panel by adopting a frame-sealing glue coating device. The invention also provides the liquid crystal display panel. The invention enables the thicknesses of the coating regions in different positions to be equal after the coating regions are coated frame-sealing glue, and enables the thickness of the frame of the periphery of the panel to be uniform. Since the box thickness of the edge of the panel and the box thickness of the interior of the panel are constant, negative phenomena of the periphery, which are caused by the nonuniform thickness of the frame-sealing glue, and the display effect is greatly improved.
Description
Technical field
The present invention relates to lcd technology, relate in particular to a kind of frame-sealing glue coating method and display panels of display panels.
Background technology
Along with the continuous progress of science and technology, LCD (Liquid Crystal Display; Hereinafter to be referred as: LCD) compact based on it, significantly save advantages such as placing space, replaced cathode-ray tube display (Cathode Ray Tube gradually; Hereinafter to be referred as: CRT) become the major product in fields such as TV and computer monitor.
The principle of LCD display image is for being applied to voltage on the liquid crystal between the lower glass substrate by the electrode on the glass substrate, because the LCDs of LCD itself is not luminous, therefore LCD has backlight, between two polaroids, accompany glass substrate, colored filter, electrode, liquid crystal layer and transistor film, the light process that backlight sends is polaroid down, become polarized light with certain polarization direction, utilize the voltage acted on to change the arrangement of liquid crystal molecule, and control from the backlight quantity of incident light and display image according to the arrangement of liquid crystal molecule.Wherein, liquid crystal is encapsulated between the involutory mutually array base palte and color membrane substrates, when carrying out molding process, make annular envelope frame glue on a glass substrate therein, utilize the high precision alignment device to make array base palte and color membrane substrates realize fitting under vacuum state, it is thick to keep box by adding glass fibre or silicon ball in envelope frame glue usually.As Fig. 1 is the structural representation of LCD panel in the prior art, the structure difference of each position of the periphery, effective viewing area of LCD panel, on color membrane substrates, comprise redundant black matrix, red, green, blue pixel, and on array base palte, comprise peripheral various grid circuits, data circuit, repair circuit and test circuit or the like.Circuit in each zone is realized that by different structures what have comprises grid and active layer, and what have comprises grid, active layer, source-drain electrode and passivation layer etc. so each regional thickness and inequality.And when the thickness in the zone of process differed big when envelope frame glue applies, the box of respective regions after finishing dispenser method is thick also to be had than big-difference, just can occur the bad phenomenon of periphery when then testing.Be illustrated in figure 2 as the bad result schematic diagram of LCD panel generation periphery in the prior art, because the thickness and the grid limit 3 of 2 regions, data limit, data opposite side 4 is different with the thickness of grid opposite side 5 regions, when the frame-sealing glue coating method of the same thickness of employing prior art is coated with, the integral thickness of 2 regions, data limit was different with the thickness of other regions, three limits after coating was finished, just can be in data limit 2 places generation figure when testing the peripheral bad phenomenon shown in the A part, therefore as panel defect (Cell mura) or interstitial defect (Gap mura) etc., the display effect of LCD is also produced and have a strong impact on.
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:
Determine the different dispensing areas of envelope frame glue according to the different subregion of the thickness of panel edge;
The thickness of the subregion that comprises according to each dispensing area is determined the area thickness of described each dispensing area respectively;
Calculate the thickness of the required envelope frame glue of described different dispensing area respectively according to the thickness of the area thickness of described each dispensing area and the liquid crystal of panel inside;
Adopt frame enclosing gum coating apparatus on the described 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 described top glass substrate and described lower glass substrate, the subregion correspondence of the different-thickness of described edge is provided with the envelope frame glue pattern of different-thickness; It is thick that described display panels has a uniform liquid crystal cell.
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 at the dispensing area of diverse location, make dispensing area thickness after applying envelope frame glue of diverse location equate, make the thick homogenising of box of panel periphery, and make face plate edge thick consistent with the box of panel inside, reduced because of the envelope frame glue peripheral bad phenomenon that produces in uneven thickness the display effect that has improved greatly.
Description of drawings
Fig. 1 is the structural representation of LCD panel in the prior art;
Fig. 2 is that the bad result schematic diagram of periphery takes place the LCD panel in the prior art;
Fig. 3 is the process flow diagram of the frame-sealing glue coating method embodiment of display panels of the present invention;
Fig. 4 is 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;
Fig. 5 is first structural representation of LCD panel among the frame-sealing glue coating method embodiment of display panels of the present invention;
Fig. 6 is second structural representation of LCD panel among the frame-sealing glue coating method embodiment of display panels of the present invention;
Fig. 7 is the 3rd structural representation of LCD panel among the frame-sealing glue coating method embodiment of display panels of the present invention;
Fig. 8 is the 4th structural representation of LCD panel among the frame-sealing glue coating method embodiment of display panels of the present invention;
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;
Figure 10 is the cross sectional representation of display panels among the display panels embodiment of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
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:
Again as shown in Figure 1, 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 because the structure difference of each position in each limit, form by 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 determined 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, make 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 be the subregion of Data opposite side inside, arrange side by side with Data Area, constitute the Data opposite side, Contact Area can be the subregion of inside, Gate limit, arranges side by side with Gate Area, 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, 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.
As can be seen from Table 1, the thickness of each subregion self is different, differing of having is bigger, as 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 is coated with at each dispensing area of the edge of LCD panel is identical, the equal diameters of chock insulator matter in its envelope frame glue, as shown in Figure 2 peripheral bad then can occur, adopt the method that present embodiment provided to apply the generation that envelope frame glue then can overcome peripheral bad phenomenon on Da ta limit.
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 need determine the subregion that each dispensing area comprised of this face plate edge when implementing this method.Can analyze the structure of this model LCD panel according to the model of LCD, thereby determine that the subregion that each dispensing area comprises is any several combination of Data Area, Gate Area, Contact Area, Blank Area or above-mentioned subregion.
After the subregion that each dispensing area with the LCD face plate edge comprises is determined, the thickness of each sub regions correspondence that the above-mentioned table 1 of reference provides, the area thickness of coming to determine successively each dispensing area.The area thickness of indication is the thickness of this dispensing area self herein, i.e. the thickness that is made of each circuit in this zone etc.Suppose that the subregion that certain dispensing area comprises is Gate Area and Contact Area, then the weighting sum of the area thickness of the area thickness of the Gate Area that provides in the last table and Contact Area is provided the area thickness of this dispensing area, wherein, weighted value is correlated with 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, determine the area thickness of all the other dispensing areas.
Thickness according to the required envelope frame glue of each dispensing area of THICKNESS CALCULATION of the liquid crystal of the area thickness of each dispensing area of determining and LCD panel inside, the thickness of the envelope frame glue that is coated with on each dispensing area is relevant with the thickness of the liquid crystal of the area thickness of this dispensing area and LCD panel inside, 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, get the THICKNESS CONTROL of the envelope frame glue of coating thereon smaller.Wherein, the thickness of the liquid crystal of LCD panel inside is the thickness of the liquid crystal that pours between two glass substrates in molding process, 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.
After the thickness of determining 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 glass fibre, can be the silicon ball, can be gold goal, can also be any several combination of glass fibre, silicon ball, gold goal.Therefore, present embodiment can reach the envelope frame glue of respective thickness by the diameter that chock insulator matter is set, 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 determining the LCD face plate edge, envelope frame glue according to required different-thickness is selected the wherein diameter of chock insulator matter, to reach the thickness of required envelope frame glue, finish after the selection 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 disposed in the different storage chambeies, also the envelope frame mucilage binding of same thickness can 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, the envelope frame glue that is arranged in the same thickness in different storages chamber can be coated on corresponding dispensing area simultaneously, and then be coated with the envelope frame glue of all the other thickness respectively.As several different structure synoptic diagram of LCD panel among the frame-sealing glue coating method embodiment of Fig. 5～Figure 8 shows that display panels of the present invention, difference mainly is the thickness difference of the envelope frame glue of the different dispensing areas of each LCD face plate edge.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 the same thickness of A1 limit, A2 limit and A4 limit correspondence can be placed the same storage chamber of frame enclosing gum coating apparatus, in coating time-division steps in sequence this three limit is coated with, also the envelope frame glue of correspondence can be placed different storage chambeies respectively, in coating time-division steps in sequence this three limit is coated with, perhaps simultaneously this three limit is coated with, finish after the application step on A1 limit, A2 limit and A4 limit, carry out the coating on A 3 limits 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 D2 adopts on the limit 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 modes, repeats no more herein.
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 Tu Bu dispense tip is aimed at the limit at dispensing area place 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 i.e. coating of 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, then being that 4.6 microns envelope frame mucilage binding is gone in as shown in Figure 4 wherein three storage chambeies with thickness, 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 nozzle of below, 4.6 microns three storage chambeies is finished the coating 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 finished the coating to the Gate limit of LCD panel A, B and C.Mobile then LCD panel makes the storage chamber aim at LCD panel D, E and F respectively, adopts above-mentioned similar method to finish 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 at the dispensing area of diverse location, make dispensing area thickness after applying envelope frame glue of diverse location equate, make the thick homogenising of box of panel periphery, and make the LCD face plate edge thick consistent with the box of LCD panel inside, 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, as shown in figure 10, present embodiment provides a kind of display panels, comprise the top glass substrate 101 and the 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, relevant with the thickness of dispensing area, after feasible coating was finished, the thickness of whole LCD panel was 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 the LCD face plate edge thick consistent with the box of LCD panel inside, reduced because of the envelope frame glue peripheral bad phenomenon that produces in uneven thickness, improved the display effect of LCD greatly.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, 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 modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.
Claims (6)
1. the frame-sealing glue coating method of a display panels is characterized in that, comprising:
Determine the different dispensing areas of envelope frame glue according to the different subregion of the thickness of panel edge;
The thickness of the subregion that comprises according to each dispensing area is determined the area thickness of described each dispensing area respectively;
Calculate the thickness of the required envelope frame glue of described different dispensing area respectively according to the thickness of the area thickness of described each dispensing area and the liquid crystal of panel inside;
Adopt frame enclosing gum coating apparatus on the described different dispensing areas of face plate edge, to be coated with the envelope frame glue of desired thickness respectively.
2. method according to claim 1 is characterized in that, before being coated with the envelope frame glue of desired thickness respectively on the described different dispensing areas of described employing frame enclosing gum coating apparatus in face plate edge, also comprises:
Thickness according to the required described envelope frame glue of different dispensing areas is selected the attached envelope frame glue that the chock insulator matter of corresponding diameter is arranged;
Described envelope frame glue is added frame enclosing gum coating apparatus.
3. method according to claim 2 is characterized in that, described employing frame enclosing gum coating apparatus is coated with desired thickness respectively on the described different dispensing areas of face plate edge envelope frame glue specifically comprises:
The envelope frame mucilage binding of different-thickness is gone in the difference storage chamber of frame enclosing gum coating apparatus;
Utilize described different storages chamber, the mode of coating of employing substep or coating simultaneously is coated with the envelope frame glue of desired thickness on the different dispensing areas of face plate edge.
4. method according to claim 3 is characterized in that, described chock insulator matter is glass fibre, silicon ball, gold goal and above-mentioned combination in any.
5. method according to claim 1, it is characterized in that, described subregion comprises area of grid, data area, white space and contact area, the thickness of described area of grid is 0.3～2.5 micron, the thickness of described data area is 0.2～2.4 micron, the thickness of described white space is 0.4～1.9 micron, and the thickness of described contact area is 0.9～2.8 micron.
6. 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 described top glass substrate and described lower glass substrate, it is characterized in that the subregion correspondence of the different-thickness of described edge is provided with the envelope frame glue pattern of different-thickness; It is thick that described display panels has a uniform liquid crystal cell.
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| JPS63175667A (en) * | 1987-01-14 | 1988-07-20 | Matsushita Electric Ind Co Ltd | Multilineal simultaneous coating method |
| CN101089689A (en) * | 2006-06-16 | 2007-12-19 | 群康科技(深圳)有限公司 | Liquid crystal display panel |
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