CN1797101A - Method for fabricating LCD faceplate and LCD unit - Google Patents

Abstract

The invention discloses a LCD panel, comprising a top substrate, a bottom substrate, at least a main frame glue and an auxiliary frame glue around the main frame glue, where the main frame glue is put in between the top and bottom substrates and the space formed of three of them is filled with liquid crystal, and the LCD panel is also provided with plural shading regions corresponding to plural parts of the auxiliary frame glue, respectively, to avoid the curing of these parts by exposure. The LCD panel is beneficial to the execution of manufacturing processes of cutting and splitting and the invention also provides a method for cutting and splitting the LCD panel to make plural LCD units.

Description

The manufacture method of liquid crystal panel and liquid crystal display

[technical field]

The invention relates to a kind of liquid crystal panel and be the method for a plurality of liquid crystal displays (Unit Cell) the cutting of this liquid crystal panel, sliver, particularly a kind of employing is dripped, and (OneDrop Fill ODF) carries out the manufacture method of the liquid crystal panel and the liquid crystal display of liquid crystal filling to mode.

[background technology]

The structure of liquid crystal panel generally includes two glass substrates, is coated in a plurality of frame glue between these two glass substrates and is poured in each frame glue and two glass substrates are formed liquid crystal in the space, this liquid crystal panel can be divided into the liquid crystal display of respective amount according to the number of its frame glue, each liquid crystal display promptly may be used in the actual LCD product, as LCD, mobile phone display screen etc.

A kind of liquid crystal panel of prior art as shown in Figure 1, it is exposed in No. the 6th, 738,124, the United States Patent (USP) of on May 18th, 2004 bulletin.This liquid crystal panel comprises an infrabasal plate 11, a upper substrate 12, be coated in a plurality of main frame glue (Main Sealant) 13, one on this infrabasal plate 11 around the auxilliary frame glue (Dummy Sealant) 14 of these a plurality of main frame glue 13 and the liquid crystal 15 in this main frame glue 13 of instiling.This infrabasal plate 11 be thin film transistor (TFT) (Thin Film Transistor, TFT) substrate, this upper substrate 12 be colored filter (Color Filter, CF) substrate, this main frame glue 13 be used to bond this infrabasal plate 11 and upper substrate 12 and liquid crystal 15 is sealed in.Should when fitting this infrabasal plate 11 and upper substrate 12, help out by auxilliary frame glue 14, satisfy predetermined requirement with the spacing between this infrabasal plate 11 of better assurance and the upper substrate 12.

Again as shown in Figure 2, be the floor map that the liquid crystal panel after this applying is cut.For this liquid crystal panel cutting, sliver are become a plurality of liquid crystal displays, need to adopt earlier cutter (figure does not show) to mark a plurality of lines of cut 16 on this liquid crystal panel surface, adopt sliver device (figure does not show) that this liquid crystal panel was split along line of cut in 16 minutes again, thereby obtain a plurality of liquid crystal displays.This cutter and sliver device also can be integrated on the equipment, carry out so that cutting, sliver system are simultaneously.

Since to this liquid crystal panel cut, before the sliver, main frame glue 13 in this liquid crystal panel and auxilliary frame glue 14 are all by ultraviolet light (UV Ray) exposure and sclerosis, when this liquid crystal panel is cut, during sliver, at a plurality of point of crossing 161 places of this line of cut 16 with auxilliary frame glue 14, should can hinder carrying out smoothly of cutting, sliver by auxilliary frame glue 14, even make the cutting of this liquid crystal panel, sliver incomplete.

For the auxilliary frame glue 14 that solves this line of cut 16 and 161 places, point of crossing of auxilliary frame glue 14 can influence the cutting of liquid crystal panel, the problem that sliver carries out smoothly, this United States Patent (USP) discloses a kind of technical scheme again the 6th, 738, No. 124.As shown in Figure 3, this liquid crystal panel increases by a light shield 18 between liquid crystal panel and ultraviolet source 17 when adopting ultraviolet source 17 to expose.This light shield 18 has a plurality of shading regions 181, each shading region 181 corresponding point of crossing shown in Figure 2 161.When ultraviolet light that ultraviolet source 17 sends projects on the light shield 18, this shading region 181 will absorb projection ultraviolet light thereon, thereby make that the auxilliary frame glue 14 at point of crossing 161 places corresponding with shading region 181 can not hardened, or hardening ratio is lower than the hardening ratio of the auxilliary frame glue 14 of other parts.Like this, this liquid crystal panel is cut, during sliver because the auxilliary frame glue 14 at 161 places, point of crossing is not hardened fully, the cutting of this liquid crystal panel, sliver processing procedure can carry out smoothly, and do not have cutting, the incomplete problem generation of sliver.

But still there are the following problems to adopt light shield 18 to carry out the technical scheme of shading: at first, owing to added light shield 18, the corresponding expense of making this light shield 18 that increased causes production cost to improve; Secondly, when adopting 18 pairs of liquid crystal panels exposures of this light shield, need accurately shading region 181 is aimed at point of crossing 161, otherwise will cause shading incomplete, still be unfavorable for cutting, the carrying out of sliver.

[summary of the invention]

For the liquid crystal panel that overcomes prior art is unfavorable for the problem of carrying out of its cutting, sliver, the invention provides a kind of help to its cut, the liquid crystal panel of sliver.

It is the method for a plurality of liquid crystal displays with above-mentioned liquid crystal panel cutting, sliver that the present invention also provides a kind of.

Liquid crystal panel of the present invention comprises a upper substrate, an infrabasal plate, at least one main frame glue and the auxilliary frame glue around this at least one main frame glue, this at least one main frame plastic clip is between this upper substrate and infrabasal plate, be perfused with liquid crystal in the space that this main frame glue and upper substrate and infrabasal plate are surrounded, a plurality of shading regions also are set on this liquid crystal panel, these a plurality of shading regions be respectively to should assisting a plurality of parts of frame glue, with the light stiffening of a plurality of parts of avoiding this auxilliary frame glue.

The manufacture method of liquid crystal display of the present invention comprises: one first substrate and one second substrate are provided; On the periphery of one of this first substrate and second substrate, form a plurality of shading regions; At least one main frame glue and the auxilliary frame glue around this at least one main frame glue are set on one of this first substrate and second substrate; The perfusion liquid crystal is in this at least one main frame glue; Fit this first substrate and second substrate; This main frame glue and auxilliary frame glue are exposed, these a plurality of shading regions are covered assisting a plurality of parts of frame glue; Along the circuit at this a plurality of shading regions place first substrate and second substrate after to this applying cut, sliver, make liquid crystal display.

Compared to prior art, the shading region that self has a plurality of point of crossing of corresponding line of cut and auxilliary frame glue because of liquid crystal panel of the present invention, when this liquid crystal panel is exposed, this shading region can cover projection ultraviolet light thereon, and then avoid or reduce the sclerosis of the auxilliary frame glue at place, this point of crossing, guarantee cutting subsequently, carrying out smoothly of sliver processing procedure, and, this shading region can form in the manufacture process of the liquid crystal panel of prior art simultaneously, can not increase the manufacturing process of liquid crystal panel because of this shading region, with respect to the prior art that adopts light shield to carry out shading, liquid crystal panel of the present invention can reduce cost, and can not exist need be with the problem of shading region and point of crossing contraposition.

Compared to prior art, because of the manufacture method of liquid crystal display of the present invention adopts the shading region that is produced on the liquid crystal panel, can reduce cost equally, improve yield.

[description of drawings]

Fig. 1 is a kind of schematic perspective view of prior art liquid crystal panel, and this liquid crystal panel is in a state before fitting.

Fig. 2 is the floor map that liquid crystal panel shown in Figure 1 is cut.

Fig. 3 is the schematic perspective view that liquid crystal panel shown in Figure 1 is exposed.

Fig. 4 is the three-dimensional exploded view of liquid crystal panel first embodiment of the present invention.

Fig. 5 is the schematic perspective view that liquid crystal panel shown in Figure 4 is exposed.

Fig. 6 be to liquid crystal panel shown in Figure 4 cut, the schematic perspective view of a plurality of liquid crystal displays of gained behind the sliver.

Fig. 7 is the three-dimensional exploded view of liquid crystal panel second embodiment of the present invention.

Fig. 8 is the schematic perspective view that liquid crystal panel shown in Figure 7 is exposed.

[embodiment]

As shown in Figure 4, be the three-dimensional exploded view of liquid crystal panel first embodiment of the present invention.This liquid crystal panel comprises an infrabasal plate 41, a upper substrate 42, is coated in a plurality of main frame glue 43, an auxilliary frame glue 44 and the liquid crystal 45 of instillation in this frame glue 43 around these a plurality of main frame glue 43 on this infrabasal plate 41.This infrabasal plate 41 is a thin film transistor base plate, and this upper substrate 42 is a colored filter substrate, this main frame glue 43 be used to bond this infrabasal plate 41 and upper substrate 42 and liquid crystal 45 is sealed in.Should when fitting this infrabasal plate 41 and upper substrate 42, help out by auxilliary frame glue 44, satisfy predetermined requirement with the spacing between this infrabasal plate 41 of better assurance and the upper substrate 42.

A plurality of shading regions 423 are set on the inside surface 421 of the close liquid crystal 45 of this upper substrate 42, to assisting a plurality of parts of frame glue 44, a plurality of parts of this auxilliary frame glue 44 are positioned at this liquid crystal panel formed crack line and the place, point of crossing that should assist frame glue 44 when follow-up cutting, sliver to these a plurality of shading regions 423 respectively.This shading region 423 is to form simultaneously in the color filter producing process of this upper substrate 42, and it also is black matrix" (Black Matrix).

With reference to Fig. 5, be the schematic perspective view that adopts a ultraviolet source that this liquid crystal panel is exposed together.This ultraviolet source 47 is positioned at outside surface 422 1 sides of this upper substrate 42, when the ultraviolet light that sends when this ultraviolet source 47 projects on the upper substrate 42, a plurality of shading regions 423 on this upper substrate 42 will absorb projection ultraviolet light thereon, thereby make that corresponding with shading region 423 crack line that is positioned at can not hardened with auxilliary frame glue 44 parts that point of crossing that should auxilliary frame glue 44 is located, or hardening ratio is lower than the hardening ratio of the auxilliary frame glue 44 of other parts.

Together with reference to Fig. 6, be finish cut after this liquid crystal panel exposure, the schematic perspective view of a plurality of liquid crystal displays of sliver gained.Because the auxilliary frame glue 44 at place, point of crossing is not hardened fully, the cutting of this liquid crystal panel, sliver processing procedure can carry out smoothly, and do not have cutting, the incomplete problem generation of sliver, and prepared a plurality of liquid crystal displays 51,52,53 and 54 yields are higher.

Compared to prior art, the shading region 423 that has a plurality of point of crossing of corresponding line of cut and auxilliary frame glue 44 because of the upper substrate 42 of liquid crystal panel of the present invention, when this liquid crystal panel is exposed, this shading region 423 can cover projection ultraviolet light thereon, and then avoid or reduce the sclerosis of the auxilliary frame glue 44 at place, this point of crossing, guarantee the carrying out smoothly of cutting, sliver processing procedure subsequently; And, because of this shading region 423 is to form simultaneously in colored filter substrate (the being upper substrate 42) manufacture process at liquid crystal panel, can not increase the manufacturing process of liquid crystal panel because of this shading region 423, with respect to the prior art that adopts light shield to carry out shading, liquid crystal panel of the present invention can reduce cost, and can not exist need be with shading region 423 problem with the point of crossing contraposition.

Please refer to Fig. 7 again, is the three-dimensional exploded view of liquid crystal panel second embodiment of the present invention.This liquid crystal panel comprises aninfrabasal plate 61, aupper substrate 62, is coated in a plurality of main frame glue 63, an auxilliary frame glue 64 and the liquid crystal 65 of instillation in this frame glue 63 around these a plurality of main frame glue 63 on thisinfrabasal plate 61.

Thisinfrabasal plate 61 is a thin film transistor base plate, and thisupper substrate 62 is a colored filter substrate.A plurality of shading regions 613 are set on the inside surface 611 of the close liquid crystal 65 of thisinfrabasal plate 61, to assisting a plurality of parts of frame glue 64, a plurality of parts of this auxilliary frame glue 64 are positioned at this liquid crystal panel formed crack line and the place, point of crossing that should assist frame glue 64 when follow-up cutting, sliver to these a plurality of shading regions 613 respectively.This shading region 613 is to form simultaneously in the thin film transistor (TFT) processing procedure of thisinfrabasal plate 61, and it is a metal level.

With reference to Fig. 8, be the schematic perspective view that adopts a ultraviolet source that this liquid crystal panel is exposed together.Thisultraviolet source 67 is positioned atoutside surface 612 1 sides of thisinfrabasal plate 61, when the ultraviolet light that sends when thisultraviolet source 67 projects on theinfrabasal plate 61, a plurality of shading regions 613 on thisinfrabasal plate 61 will absorb projection ultraviolet light thereon, thereby make that corresponding with shading region 613 crack line that is positioned at can not hardened with auxilliary frame glue 64 parts that point of crossing that should auxilliary frame glue 64 is located, or hardening ratio is lower than the hardening ratio of the auxilliary frame glue 64 of other parts.Second embodiment of liquid crystal panel of the present invention has same advantage with first embodiment.

Liquid crystal panel of the present invention also can have following other change design, for example: shading region is formed on the side back to liquid crystal of this infrabasal plate with what shading region was formed on this upper substrate back to a side of liquid crystal; This shading region also can be respectively black matrix" that is arranged on the upper substrate and the metal level that is arranged on this infrabasal plate.

Below in conjunction with Fig. 4, Fig. 5 and Fig. 6 the manufacture method of liquid crystal display of the present invention is described.This manufacture method may further comprise the steps: an infrabasal plate 41 and a upper substrate 42 are provided; On the periphery of the inside surface 421 of this upper substrate 42, form a plurality of shading regions 423; A plurality of main frame glue 43 and the auxilliary frame glue 44 around these a plurality of main frame glue 43 are set on this infrabasal plate 41; Pour into liquid crystal 45 respectively in these a plurality of main frame glue 43; Fit this infrabasal plate 41 and upper substrate 42; Adopt the main frame glue 43 and the auxilliary frame glue 44 of 47 pairs of these liquid crystal panels of ultraviolet source to expose, make these a plurality of shading regions 423 cover a plurality of parts (i.e. a plurality of point of crossing of line of cut subsequently and auxilliary frame glue) assisting frame glue 44; Along the circuit at these a plurality of shading regions 423 places infrabasal plate 41 and the upper substrate 42 after to this applying cut, sliver, make a plurality of liquid crystal displays 51,52,53 and 54.

Compared to prior art, because of the manufacture method of liquid crystal display 51,52,53 of the present invention and 54 adopts the shading region 423 that is produced on the upper substrate 42, it can reduce cost, and improves yield.

Claims (10)

1. liquid crystal panel, comprise a upper substrate, an infrabasal plate, be clipped at least one main frame glue between this upper substrate and the infrabasal plate, be poured in liquid crystal and the auxilliary frame glue around this at least one main frame glue in the space that this main frame glue and upper substrate and infrabasal plate surrounded, it is characterized in that: a plurality of shading regions further are set on this liquid crystal panel, these a plurality of shading regions be respectively to should assisting a plurality of parts of frame glue, with the light stiffening of a plurality of parts of avoiding this auxilliary frame glue.

2. liquid crystal panel as claimed in claim 1 is characterized in that: this shading region be formed on this upper substrate close liquid crystal a side or be formed on the side back to liquid crystal of this upper substrate.

3. liquid crystal panel as claimed in claim 1 is characterized in that: this upper substrate is a colored filter substrate.

4. liquid crystal panel as claimed in claim 3 is characterized in that: this shading region is a black matrix".

5. liquid crystal panel as claimed in claim 1 is characterized in that: this shading region be formed on this infrabasal plate close liquid crystal a side or be formed on the side back to liquid crystal of this infrabasal plate.

6. liquid crystal panel as claimed in claim 1 is characterized in that: this infrabasal plate is a thin film transistor base plate.

7. liquid crystal panel as claimed in claim 6 is characterized in that: this shading region is a metal level.

8. liquid crystal panel as claimed in claim 1 is characterized in that: this shading region to should liquid crystal panel be cut, formed crack line and place, point of crossing that should auxilliary frame glue during sliver.

9. liquid crystal panel as claimed in claim 1 is characterized in that: this shading region is respectively black matrix" that is arranged on this upper substrate and the metal level that is arranged on this infrabasal plate

10. the manufacture method of a liquid crystal display, it comprises: one first substrate and one second substrate are provided; On the periphery of one of this first substrate and second substrate, form a plurality of shading regions; At least one main frame glue and the auxilliary frame glue around this at least one main frame glue are set on one of this first substrate and second substrate; The perfusion liquid crystal is in this at least one main frame glue; Fit this first substrate and second substrate; This main frame glue and auxilliary frame glue are exposed, these a plurality of shading regions are covered assisting a plurality of parts of frame glue; Along the circuit at this a plurality of shading regions place first substrate and second substrate after to this applying cut, sliver, make liquid crystal display.

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