CN207742439U - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
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- CN207742439U CN207742439U CN201721232227.4U CN201721232227U CN207742439U CN 207742439 U CN207742439 U CN 207742439U CN 201721232227 U CN201721232227 U CN 201721232227U CN 207742439 U CN207742439 U CN 207742439U
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Abstract
This disclosure relates to which technical field of liquid crystal display, especially a kind of liquid crystal display panel include：Active switch array substrate, the non-display area with viewing area and positioned at viewing area periphery, the non-display area are equipped with the first frame glue observation area, and first frame glue observation area includes multiple first observation windows；Colored filter substrate is opposite with the active switch array substrate；Liquid crystal layer is set between the active switch array substrate and the colored filter substrate, and on the viewing area；And frame glue, it is set between the active switch array substrate and the colored filter substrate, and on the non-display area；First observation window described in the frame glue covering part.The disclosure is capable of the coating situation of accurate observation frame glue by opening up frame glue observation area in active switch array substrate.
Description
Technical field
This disclosure relates to technical field of liquid crystal display, more particularly to a kind of liquid crystal display panel.
Background technology
Existing liquid crystal display (Liquid Crystal Display, LCD) has been widely applied to the daily life of people
Various aspects living.The current scientific and technological information product of liquid crystal display all develops towards light, thin, short, small target, in computer week
The display product for possessing long history in side is certainly no exception.It is under preceding topic in easy to carry and carrying, traditional is aobvious
Show mode, be all limited by that volume is excessive or very huge etc. factors of power consumption, the actual demand of user can not be reached.And liquid crystal display
The development of technology just suits the trend of current information products, either right angle show, low power consumption, small or zero spoke
The advantages that penetrating can allow user to enjoy best visual environment.
Existing liquid crystal display includes mainly liquid crystal display panel and backlight module.Wherein, liquid crystal display panel is main
With thin film transistor base plate (Thin Film Transistor substrate, TFT substrate), a colored optical filtering substrates
(Colour Filter substrate, CF substrate), and the liquid crystal layer that is located between two substrates.It is assembled to box
(Cell) in processing procedure, frame glue can be coated in the surrounding of substrate and in injecting liquid crystal layer in frame glue, frame glue is cured, to obtain
One structure of liquid crystal display panel.
However, the surrounding of panel can be flowed to after being injected due to liquid crystal molecule, but before frame glue is uncured, liquid crystal molecule
Will produce chemical change with frame glue and cause the dissolving of frame glue, the pollution of liquid crystal can be caused when serious so that display device frame
Region generates unevenness (Mura) phenomenon of apparent bright dark fringe because of the pollution of liquid crystal.
In the narrowization frame process of liquid crystal display, the influence of the coated structure of frame glue to product quality is very big.
Therefore, the design of frame glue, which is one, actively to face and improved important topic.
Utility model content
To solve the above problems, the disclosure provides a kind of liquid crystal display panel, including：
Active switch array substrate, the non-display area with viewing area and positioned at viewing area periphery, the non-display area
It is equipped with the first frame glue observation area, first frame glue observation area includes multiple first observation windows；
Colored filter substrate is opposite with the active switch array substrate；
Liquid crystal layer is set between the active switch array substrate and the colored filter substrate, and is located at institute
It states on viewing area；And
Frame glue is set between the active switch array substrate and the colored filter substrate, and positioned at described
On non-display area；First observation window described in the frame glue covering part.
Opened up in active switch array substrate include multiple first observation windows the first frame glue observation area, can observe
Frame glue coats situation, finds quality problems in time, while improving product qualification rate, reduces production cost.
Description of the drawings
Fig. 1 a are the structural schematic diagram of the liquid crystal display panel of the embodiment of the present disclosure.
Fig. 1 b are the overlooking structure diagram of the liquid crystal display panel of the embodiment of the present disclosure.
Fig. 1 c are the enlarged structure schematic diagram of the parts S1 in Fig. 1 b.
Fig. 1 d are the structural schematic diagram of the first observation window of the embodiment of the present disclosure.
Fig. 1 e are the structural schematic diagram of the first observation window of the embodiment of the present disclosure.
Fig. 2 a are the structural schematic diagram of the liquid crystal display panel of another embodiment of the disclosure.
Fig. 2 b are the overlooking structure diagram of the liquid crystal display panel of another embodiment of the disclosure.
Fig. 2 c are the enlarged structure schematic diagram of the parts S2 in Fig. 2 b.
Fig. 3 a are the structural schematic diagram of the liquid crystal display panel of the another embodiment of the disclosure.
Fig. 3 b are the overlooking structure diagram of the liquid crystal display panel of the another embodiment of the disclosure.
Fig. 3 c are the enlarged structure schematic diagram of the parts S3 in Fig. 3 b.
Fig. 3 d are the enlarged structure schematic diagram of the parts S4 in Fig. 3 b.
Specific implementation mode
In the following, the disclosure is discussed in detail in conjunction with specific embodiments.
In the present embodiment, as shown in Figure 1a, liquid crystal display panel 100 include first substrate 130, second substrate 140 with
And it is set to liquid crystal layer 150 between the first substrate 130, second substrate 140, frame glue 160.Wherein, the frame glue 160
It is arranged around the liquid crystal layer 150, for making the first substrate 130, the bonding of second substrate 140 while by the liquid crystal layer
150 are closed in the sealing space 151 made of the frame glue 160 and the first substrate 130, the enclosing of second substrate 140.For
Holding power between first substrate 130 and second substrate 140 is provided, spacer is also dispersed in the sealing space 151
170。
The projection on first substrate 130 or second substrate 140 respectively of liquid crystal layer 150, may be defined as liquid crystal display panel
Viewing area 110, the region around viewing area 110 may be defined as non-display area 120.Usually, viewing area 110 is in response to liquid crystal layer
150 shape and usually from rectangle.
160 non-display area 120 of the frame glue is arranged, and around around the liquid crystal layer of the viewing area 110 150.
It is to mark off frame glue material coating area (in figure in non-display area 120 in advance in a kind of existing frame glue manufacture craft
Do not show), frame glue material can select to coat on first substrate 130 or second substrate 140, be formed around the viewing area 110
One closed figure.Before waiting for that frame glue material parches, can frame glue material encircle a city viewing area 110 in filling liquid crystal molecule.Then,
The first substrate 130, second substrate 140 enter to box processing procedure, keep the first substrate 130, second substrate 140 accurate right
Position, be provided with frame glue material and liquid crystal molecule first substrate 130 (or second substrate 140) it is corresponding fit in second substrate 140 (or
First substrate 130).So after frame glue material solidification, by substrate cut process by first substrate, second substrate along substrate
Cutting line is cut into independent LCD display plate unit one by one.Since this technique needs before frame glue material is uncured just
It needs filling liquid crystal molecule, liquid crystal molecule to be likely to contact concurrent biochemical reaction with frame glue material, influences follow-up display
Quality.Therefore, it is necessary to observation window be opened up in the coating area of frame glue material, so as to intuitively check the coating or solidification of frame glue
Quality, product of pinpointing the problems in time improve product qualification rate.
Wherein, the first substrate 130 can be active switching array substrate, for example, thin-film transistor array base-plate
(tft array substrate).Specifically, thin film transistor (TFT) array (not shown) is provided on the first substrate 130, it is described thin
Film transistor array includes forming active electrode (not shown), drain electrode (not shown) and gate electrode (in figure not show
Go out) and/or scan line (not shown), data line (not shown) metal layer 134.
Second substrate 140 may be, for example, colored optical filtering substrates (CF substrate).Wherein, it is provided on the second substrate 140
Black-matrix layer 143 and the transparent electrode layer 144 being covered in the black-matrix layer 143.Described in 160 covering part of frame glue
Transparent electrode 144.
The first substrate 130 further includes that multiple first frame glues observation area 133A is set to the non-display area 120, often
A first frame glue observation area 133A includes multiple first observation windows 133, the coating situation for observing frame glue.Described non-display
At the frame glue coating in area 120, while there are many components for laying, and etching process can received by preferably avoiding these components
Region division goes out the first frame glue observation area 133A, and therefore, the first frame glue observation area 133A is often discontinuous, in point of island
Cloth.Such as shown in Fig. 1 b, it can be equipped with several first frame glues on wherein one side non-display area 120 of first substrate 130 and see
Examine area 133A.
In conjunction with shown in Fig. 1 c, a first frame glue observation area 133A presets the figure and quantity of the first observation window wherein,
Then using makes first observation window 133 and the gate electrode, source electrode, drain electrode, and/or person and is swept in a manner of etching
Retouch line, data line is integrally formed.Each first observation window 133 is a closed pattern, each first frame glue observation area 133A
Include multiple first observation windows 133, by multiple first observation windows 133 it can be seen that part frame glue 160 coating feelings
Condition.Part is interconnected between each first observation window 133, can mutually be supervised using between the first adjacent observation window 133
Survey the coating situation of frame glue so that the coating information of acquisition is more acurrate.
The shape of the window of first observation window 133 can be selected from a variety of closed patterns.For example, due to rectangle with it is described
The walks wire shaped of source electrode, drain electrode and gate electrode is closest, can be designed as multiple first observation window, 133 pattern of windows
Multiple rectangular arrays, in conjunction with shown in Fig. 1 c.The method that etching can be utilized etches circular array (as schemed on metal layer 134
1d), prismatic array (such as Fig. 1 e) pattern forms the first observation window with rectangular array, circular array or prismatic array
133.Further, in the rectangular array, circular array or prismatic array, two neighboring closed figure Heterogeneous Permutation, with
Part is interconnected between this makes every 1 first observation window 133.
In actual production, after frame glue material is cured as frame glue, the expansion rate of volume is up to 250%~280%；And when the first base
When plate 130, about 140 second substrate press, frame glue material can also be towards two side diffusion of wide cut of the first frame glue observation area 133A.It waits for
After frame glue material solidifying and setting is known as frame glue 160, the wide cut of frame glue 160 is defined as line width d at this time.In the present embodiment, in conjunction with Fig. 1 c
It is found that being formed by the first frame glue observation area 133A by multiple first observation windows 133, total wide cut is set as D；And the line width of frame glue
It is set as d.Whether it is accurately to have an impact to the quality of liquid crystal display panel quality that the size of frame glue line width calculates, therefore frame glue
Expansion or diffusion amplitude can be taken into account in after the final shaping in the line width values of frame glue.If frame glue line width is too thin, it is likely to result in
The follow-up vent sequence for aligning pressure programming is bad, liquid crystal can not fill outside complete, the bad phenomenon of panel gap uniformity, frame glue
Cross the bad phenomenons such as existing white edge.If frame glue line width is too thick, the difficulty of follow-up cutting processing procedure may be increased as matched because being applied to
It causes frame glue stripping, frame glue to be too close to viewing area on film and causes pollution problem etc. between liquid crystal.Similarly, the first frame glue is seen
The effect for examining area 133A is only that the topical application situation of " sampling observation " frame glue, the wide cut of the first frame glue observation area is excessive, it is too small will
Influence control, the frame glue testing result accuracy etc. of manufacturing cost, therefore, the first observation window 133 opened up and the first frame
The shape and width of glue observation area 133A also will need the line width in response to frame glue to consider.
In order to meet the first enough width in frame glue observation area with the coating condition of clear view frame glue, the first frame glue observation area
Wide cut D be slightly larger than frame glue line width d；Simultaneously in order to not influence to the basic structure of first substrate, preferably d<D<3d.
Since the wide cut of non-display area 120 is uncertain, the coating parameters of frame glue are caused to also tend to need to adjust so that frame glue
Coating be susceptible to deviation or deformation.In order to enable the first observation window 133 " selective examination " effect play maximize, frame glue it is each
Kind problem condition can be noted that frame glue 160 is preferably along the central shaft of the non-display area 120 from the first observation window 133
Line coats.Accordingly the corresponding medium position for covering the first frame glue observation area 133A, covering are located at the first frame glue and see such frame glue 160
Examine multiple first observation windows 133 in the middle part of area 133A.In this case, the first frame glue observation area both sides 133A several first
Observation window 133 is not blocked, it can be seen that the interior edge of frame glue 160 or outer, even frame glue 160 are in second substrate 140
Coating situation.
Said effect can be used as by introducing substrate cut line and viewing area with reference to auxiliary, accurately define the first frame
The relative position of glue observation area 133A and frame glue 133.
As illustrated in figure 1 c, first substrate 130 is detached along substrate cut line B1 by cutting.The substrate cut line B1 is described in
The distance W of the first frame glue observation area outers 133A1, with the substrate cut line B1 to 160 outer distance W of the frame glue2Pass
System is (W2/4)<W1<(W2/2).Further, distance of the viewing area 110 to edge in first frame glue observation area 133A
W3, with the viewing area 110 to edge distance W in the frame glue 1604Relationship be (W4/4)<W3<(W4/2)。
For example, for width is 1.5mm non-display areas 120, the frame glue line width d after preferably shaping can be 0.3mm.Frame
Distance W of the glue outer to substrate cut line1Can be edge in 0.6mm, frame glue to the distance between viewing area 110 W2Can be
0.6mm.Accordingly, preferably distance W of the outer of first frame glue observation area 133A to substrate cut line3For 0.15~0.3mm,
Distance W of the interior edge of first frame glue observation area 133A to display area 314For 0.15~0.3mm.On the one hand this structure both may be used
By meet to frame glue coating in the form of observe requirement, and can give observer provide contrast object, can judge that frame glue is rapidly
It is no in suitable range.
When observation, can from first substrate irradiation light (not showing on figure), allow light by the first observation window 133 and pass through
In the black-matrix layer 143 for reaching second substrate 140 by liquid crystal layer 150, and it is reflected back first substrate 130 via a little light,
To reach the situation that monitoring frame glue 160 is coated with.The material of the black-matrix layer 143 of the present embodiment can be metal, so with anti-
Penetrate the effect of light.Black-matrix layer prepared by resin material is used for some, a reflecting layer can be covered in non-display area,
It can equally achieve the effect that above-mentioned observation frame glue.
Gap between first substrate 130, second substrate 140 is supported in order to stablize, and can also be mixed in the sealing space
Some spacers 170, provide the support force of upper layer and lower layer substrate.Wherein, spacer 170 can be spherical shape or column, material
It may be, for example, metal or resin, the metal layer of first substrate can be formed in by photoetching technique.Further, at least one
A spacer 170 is set between the liquid crystal layer 150 and the frame glue 160, and such spacer 170 can be in liquid crystal point
When son injection, the chance that effectively barrier or reduction liquid crystal molecule are contacted with frame glue reduces what liquid crystal molecule reacted with frame glue
Probability improves product qualification rate.
According to above-mentioned, the disclosure by opening up the frame glue area of observation coverage and the first frame glue observation area on the first substrate so that
The frame glue coated on first substrate can be inspected, monitor its coating situation, find the coating problem of frame glue in time, for example, and
It is early to find that frame glue has the case where pollution that then stop subsequent technique with liquid crystal layer, it effectively improves product qualification rate and reduces life
Produce cost.Above-described embodiment only enumerates a little figure, and field those skilled in the art can be appreciated that the figure of frame glue observation window is without being limited thereto, and
Allocation position can be put according to the confined space, when insufficient space, frame glue observation window can close to and it is interconnected.
In another embodiment, as shown in Figure 2 a, liquid crystal display panel 200 includes first substrate 230, second substrate 240
And it is set to liquid crystal layer 250 between the first substrate 230, second substrate 240, frame glue 260.Wherein, the frame glue 260
It is arranged around the liquid crystal layer 250, for making the first substrate 230, the bonding of second substrate 240 while by the liquid crystal layer
250 are closed in the sealing space 251 made of the frame glue 260 and the first substrate 230, the enclosing of second substrate 240.For
Holding power between first substrate 230 and second substrate 240 is provided, spacer is also dispersed in the sealing space 251
270。
The projection on first substrate 230 or second substrate 240 respectively of liquid crystal layer 250, may be defined as liquid crystal display panel
Viewing area 210, the region around viewing area 210 may be defined as non-display area 220.Usually, viewing area 210 is in response to liquid crystal layer
250 shape and usually from rectangle.
260 non-display area 220 of the frame glue is arranged, and around around the liquid crystal layer of the viewing area 210 250.It is practical
In the manufacture craft of frame glue, frame glue material coating area (not shown) can be marked off in non-display area 220, frame glue material can be in advance
Selection coats on first substrate 230 or second substrate 240.Frame glue material can leave a liquid crystal injection when coating in specific region
Mouthful, it is injected for follow-up liquid crystal.In the first substrate 230, second substrate 240 in box processing procedure, the first substrate 230,
Two substrates, 240 exactitude position, first substrate 230 (or second substrate 240) correspondence for being coated with frame glue material fit in second substrate
240 (or first substrates 230).So wait for that the frame glue material is solidified into, by substrate cut process by first substrate, second substrate
It is independent LCD display plate unit one by one along substrate cut wire cutting.At this point, can be examined to the coating quality of frame glue
It surveys.The qualified LCD display plate unit of detection can continue filling liquid crystal layer 250 thereto.
Wherein, the first substrate 230 can be thin film transistor base plate.Specifically, it is set on the first substrate 230
It is equipped with active switch array substrate, for example, thin film transistor (TFT) (not shown), the thin film transistor (TFT) is active including being formed
Electrode (not shown), drain electrode (not shown) and gate electrode (not shown) and/or scan line (are not shown in figure
Go out), the metal layer 234 of data line (not shown).
Second substrate 240 may be, for example, colored optical filtering substrates.Wherein, it is provided with black matrix" on the second substrate 240
Layer 243 and the transparent electrode layer 244 being covered in the black-matrix layer 243.Transparent electricity described in 260 covering part of frame glue
Pole 244.
The second substrate 240 further includes that multiple second frame glues observation area 233A is set to the non-display area 220, often
A second frame glue observation area 233A includes multiple second observation windows 233.At the frame glue coating of the non-display area 220, preferably
It avoids component and goes out the second frame glue observation area 233A in the region division that can receive etching process, therefore, the observation of the second frame glue
Area 233A is often discontinuous, distribution in island.It, can be in the wherein non-on one side of second substrate 240 such as shown in Fig. 2 b
Viewing area 220 is equipped with several second frame glues observation area 233A.
In conjunction with shown in Fig. 2 c, make black-matrix layer in a manner of etching in a wherein second frame glue observation area 233A
243 form several closed patterns, obtain multiple second observation windows 233.By multiple second observation windows 233 of institute it can be seen that part
The coating condition of frame glue 260.Part is interconnected between each second observation window 233, using the second adjacent observation window
The coating situation of frame glue can be mutually monitored between 233 so that the coating information of acquisition is more acurrate.
Multiple second observation windows 233 that each second frame glue observation area 233A includes are black-matrix layer etchings and are obtained
.The shape of the window of second observation window 233 can be selected from a variety of closed patterns.For example, due to rectangle and one by one
The shape of black matrix" is closest, can multiple second observation window, 233 pattern of windows be designed as multiple rectangular arrays.Certainly,
Other patterns can also be presented in second observation window 233, for example, round (with reference to figure 1d) or prismatic (with reference to figure 1e) or ellipse
Deng.
In actual production, after frame glue material is cured as frame glue, the expansion rate of volume is up to 250%~280%；And when the first base
When plate 230, about 240 second substrate press, frame glue material can also be towards two side diffusion of wide cut of the second frame glue observation area 233A.It waits for
After frame glue material solidifying and setting is known as frame glue 260, the wide cut of frame glue 260 is defined as line width d at this time.In the present embodiment, in conjunction with Fig. 2 c
It is found that being formed by the second frame glue observation area 233A by multiple second observation windows 233, total wide cut is set as D；And the line width of frame glue
It is set as d.Whether it is accurately to have an impact to the quality of liquid crystal display panel quality that the size of frame glue line width calculates, therefore frame glue
Expansion or diffusion amplitude can be taken into account in after the final shaping in the line width values of frame glue.If frame glue line width is too thin, it is likely to result in
The follow-up vent sequence for aligning pressure programming is bad, liquid crystal can not fill outside complete, the bad phenomenon of panel gap uniformity, frame glue
Cross the bad phenomenons such as existing white edge.If frame glue line width is too thick, the difficulty of follow-up cutting processing procedure may be increased as matched because being applied to
It causes frame glue stripping, frame glue to be too close to viewing area on film and causes pollution problem etc. between liquid crystal.Similarly, the second frame glue is seen
The effect for examining area 233A is only that the topical application situation of " sampling observation " frame glue, the wide cut of frame glue observation area are excessive, too small by influence
To control, the frame glue testing result accuracy etc. of manufacturing cost, therefore, the second observation window 233 opened up and the second frame glue are seen
The shape and width for examining area 233A also will need the line width in response to frame glue to consider.
Shown in Fig. 2 c, in order to meet the enough width in frame glue observation area with the coating condition of clear view frame glue,
The wide cut D of frame glue observation area is slightly larger than frame glue line width d；Simultaneously in order to not influence to the basic structure of first substrate, preferably d<D<
3d。
Since the wide cut of non-display area 220 is uncertain, the coating parameters of frame glue are caused to also tend to need to adjust so that frame glue
Coating be susceptible to deviation or deformation.In order to enable the second observation window 233 " selective examination " effect play maximize, frame glue it is each
Kind problem condition can be noted that frame glue 260 is preferably along the central shaft of the non-display area 220 from the second observation window 233
Line coats.Accordingly the corresponding medium position for covering the second frame glue observation area 233A, covering are located at the second frame glue and see such frame glue 260
Examine multiple second observation windows 233 in the middle part of area 233A.In this case, the second frame glue observation area both sides 233A several second
Observation window 233 is not blocked, it can be seen that the interior edge of frame glue 260 or outer, even frame glue 260 are in first substrate 230
Coating situation.
Said effect can be used as by introducing substrate cut line and viewing area with reference to auxiliary, accurately define the second frame
The relative position of glue observation area 233A and frame glue 233.
Second substrate 240 is detached along substrate cut line B2 by cutting.As shown in Figure 2 c, the substrate cut line B2 is described in
The distance W of the second frame glue observation area outers 233A5, with the substrate cut line B2 to 260 outer distance W of the frame glue6Pass
System is (W6/4)<W5<(W6/2).Further, distance of the viewing area 210 to edge in second frame glue observation area 233A
W7, with the viewing area 210 to edge distance W in the frame glue 2608Relationship be (W8/4)<W7<(W8/2)。
For example, for width is 1.5mm non-display areas 220, the frame glue line width d after preferably shaping can be 0.3mm.Frame
Distance W of the glue outer to substrate cut line5Can be edge in 0.6mm, frame glue to the distance between viewing area 210 W6Can be
0.6mm.Accordingly, preferably distance W of the outer of second frame glue observation area 233A to substrate cut line7For 0.15~0.3mm,
Distance W of the interior edge of second frame glue observation area 233A to display area 2108For 0.15~0.3mm.On the one hand this structure both may be used
By meet to frame glue coating in the form of observe requirement, and can give observer provide contrast object, can judge that frame glue is rapidly
It is no in suitable range.
When observation, can from second substrate irradiation light (not showing on figure), allow light by the second observation window 233 and pass through
On the metal layer 234 for reaching first substrate 230 by liquid crystal layer 250, and it is reflected back second substrate 240 via a little light, to reach
The situation being coated with to monitoring frame glue 260.The material of the black-matrix layer 243 of the present embodiment is metal, so having reflection light
Effect.Black-matrix layer prepared by resin material is used for some, a reflecting layer, same energy can be covered in non-display area
Achieve the effect that above-mentioned observation frame glue.
Further, at least one spacer 270 is set between the liquid crystal layer 250 and the frame glue 260,
Gap between first substrate 230, second substrate 240 is supported in order to stablize.Wherein, spacer 270 can be spherical shape or column
Shape, material may be, for example, metal or resin, can be formed in by photoetching technique above the black matrix" of second substrate.As around here
Parting 270 can be when liquid crystal molecule injects, and the chance that also effectively barrier or reduction liquid crystal molecule are contacted with frame glue reduces liquid crystal
The probability that molecule reacts with frame glue improves product qualification rate.
According to above-mentioned, the disclosure by opening up the second frame glue area of observation coverage and the second frame glue observation window on second substrate,
The frame glue coated on second substrate is inspected, its is monitored and is coated with situation, finds the coating problem of frame glue in time, effectively
It improves product qualification rate and reduces production cost.Above-described embodiment only enumerates a little figure, and field those skilled in the art can be appreciated that frame glue
The figure of observation window is without being limited thereto, and allocation position can be put according to the confined space, and when insufficient space, frame glue observation window can be tight
It is adjacent and interconnected.
In another embodiment, as shown in Figure 3a, liquid crystal display panel 300 includes first substrate 330, second substrate 340
And it is set to liquid crystal layer 350 between the first substrate 330, second substrate 340, frame glue 360.Wherein, the frame glue 360
It is arranged around the liquid crystal layer 350, for making the first substrate 330, the bonding of second substrate 340 while by the liquid crystal layer
350 are closed in the sealing space 351 made of the frame glue 360 and the first substrate 330, the enclosing of second substrate 340.For
Holding power between first substrate 330 and second substrate 340 is provided, spacer is also dispersed in the sealing space 351
370。
The projection on first substrate 330 or second substrate 340 respectively of liquid crystal layer 350, may be defined as liquid crystal display panel
Viewing area 310, the region around viewing area 310 may be defined as non-display area 320.Usually, viewing area 310 is in response to liquid crystal layer
350 shape and usually from rectangle.
360 non-display area 320 of the frame glue is arranged, and around around the liquid crystal layer of the viewing area 330 350.It is practical
In the manufacture craft of frame glue, frame glue material coating area (not shown) can be marked off in non-display area 320, frame glue material can be in advance
Selection coats on first substrate 330 or second substrate 340.Frame glue material can leave a liquid crystal injection when coating in specific region
Mouthful, it is injected for follow-up liquid crystal.In the first substrate 330, second substrate 340 in box processing procedure, the first substrate 330,
Two substrates, 340 exactitude position, first substrate 330 (or second substrate 340) correspondence for being coated with frame glue material fit in second substrate
340 (or first substrates 330).So wait for that the frame glue material is solidified into, by substrate cut process by first substrate, second substrate
It is independent LCD display plate unit one by one along substrate cut wire cutting.At this point, can be examined to the coating quality of frame glue
It surveys.The qualified LCD display plate unit of detection can continue filling liquid crystal layer 350 thereto.
Wherein, the first substrate 330 can be thin film transistor base plate.Specifically, it is set on the first substrate 330
It is equipped with active switch array substrate, for example, thin film transistor (TFT) (not shown), the thin film transistor (TFT) is active including being formed
Electrode (not shown), drain electrode (not shown) and gate electrode (not shown) and/or scan line (are not shown in figure
Go out), the metal layer 334 of data line (not shown).
Second substrate 340 may be, for example, colored optical filtering substrates.Wherein, it is provided with black matrix" on the second substrate 340
Layer 343 and the transparent electrode layer 344 being covered in the black-matrix layer 343.Transparent electricity described in 360 covering part of frame glue
Pole 344.
The first substrate 330 further includes that multiple first frame glues observation area 333A is set to the non-display area 320, often
A first frame glue observation area 333A includes multiple first observation windows 333.At the frame glue coating of the non-display area 320, simultaneously
It lays there are many component, preferably avoids these components and go out the observation of the first frame glue in the region division that can receive etching process
Area 333A, therefore, the first frame glue observation area 333A is often discontinuous, distribution in island.Such as shown in Fig. 3 b, Ke Yi
Wherein one side non-display area 320 of first substrate 330 is equipped with several first frame glues observation area 333A.
In conjunction with shown in Fig. 3 c, a first frame glue observation area 333A presets the figure and quantity of the first observation window wherein,
Then using makes first observation window 333 and the gate electrode, source electrode, drain electrode, and/or person and is swept in a manner of etching
Retouch line, data line is integrally formed.Each first observation window 333 is a closed pattern, each first frame glue observation area 333A
Include multiple first observation windows 333, by multiple first observation windows 333 it can be seen that part frame glue 360 coating feelings
Condition.Part is interconnected between each first observation window 333, can mutually be supervised using between the first adjacent observation window 333
Survey the coating situation of frame glue so that the coating information of acquisition is more acurrate.
Multiple first observation windows 333 that each first frame glue observation area 333A includes are by original gate electrode, source electricity
Pole or drain electrode enclose and layer.The shape of the window of first observation window 333 can be selected from a variety of closed patterns.For example,
It, can will be more since rectangle and the source electrode, drain electrode, gate electrode and/or scan line, the walks wire shaped of data line are closest
A first observation window, 333 pattern of windows is designed as multiple rectangular arrays.Certainly, in other embodiments, first observation window 333
Closed pattern can also be round (with reference to figure 1d), ellipse or prismatic.
Similarly,
Also known in Fig. 3 b, the second substrate 340 further include multiple second frame glues observation area 333A ' be set to it is described non-
Viewing area 320, each second frame glue observation area 333A ' include multiple second observation window 333s.The multiple first observation window 333
It is shifted to install with the multiple second observation window 333s.At the frame glue coating of the non-display area 320, component is preferably avoided
Go out the second frame glue observation area 333A ' in the region division that can receive etching process, therefore, the second frame glue observation area 333A ' is normal
It is often distribution discontinuous, in island.It, can be in wherein one side non-display area 320 of second substrate 340 such as shown in Fig. 3 b
It is equipped with several second frame glues observation area 333A '.
In conjunction with shown in Fig. 3 d, make black-matrix layer in a manner of etching in a second frame glue observation area 333A ' wherein
343 form several closed patterns, obtain multiple second observation window 333s.Portion can be seen by the multiple second observation window 333s of institute
Divide the coating condition of frame glue 360.Part is interconnected between each second observation window 333s, using the second adjacent observation
The coating situation of frame glue can be mutually monitored between window 333s so that the coating information of acquisition is more acurrate.
Multiple second observation window 333s that each second frame glue observation area 333A ' includes, be black-matrix layer etching and
It obtains.The shape of the window of second observation window 333s can be selected from a variety of closed patterns.For example, due to rectangle and one
The shape of a black matrix" is closest, can multiple second observation window 333s pattern of windows be designed as multiple rectangular arrays.The
The closed pattern of two observation window 333s can also be round (with reference to figure 1d), ellipse or prismatic.
In actual production, after frame glue material is cured as frame glue, the expansion rate of volume is up to 250%~280%；And when the first base
When plate 330, about 340 second substrate press, frame glue material can also be towards two side diffusion of wide cut of the first frame glue observation area 333A.It waits for
After frame glue material solidifying and setting is known as frame glue 360, the wide cut of frame glue 360 is defined as line width d at this time.In the present embodiment, in conjunction with Fig. 3 c
It is found that being formed by the first frame glue observation area 333A by multiple first observation windows 333, total wide cut is set as D；And the line width of frame glue
It is set as d.Whether it is accurately to have an impact to the quality of liquid crystal display panel quality that the size of frame glue line width calculates, therefore frame glue
Expansion or diffusion amplitude can be taken into account in after the final shaping in the line width values of frame glue.If frame glue line width is too thin, it is likely to result in
The follow-up vent sequence for aligning pressure programming is bad, liquid crystal can not fill outside complete, the bad phenomenon of panel gap uniformity, frame glue
Cross the bad phenomenons such as existing white edge.If frame glue line width is too thick, the difficulty of follow-up cutting processing procedure may be increased as matched because being applied to
It causes frame glue stripping, frame glue to be too close to viewing area on film and causes pollution problem etc. between liquid crystal.Similarly, the first frame glue is seen
The effect for examining area 333A is only that the topical application situation of " sampling observation " frame glue, the wide cut of the first frame glue observation area is excessive, it is too small will
Influence control, the frame glue testing result accuracy etc. of manufacturing cost, therefore, the first observation window 333 opened up and the first frame
The shape and width of glue observation area 333A also will need the line width in response to frame glue to consider.
In order to meet the first enough width in frame glue observation area with the coating condition of clear view frame glue, the first frame glue observation area
Wide cut D be slightly larger than frame glue line width d；Simultaneously in order to not influence to the basic structure of first substrate, preferably d<D<3d.
Since the wide cut of non-display area 320 is uncertain, the coating parameters of frame glue are caused to also tend to need to adjust so that frame glue
Coating be susceptible to deviation or deformation.In order to enable the first observation window 333 " selective examination " effect play maximize, frame glue it is each
Kind problem condition can be noted that frame glue 360 is preferably along the central shaft of the non-display area 320 from the first observation window 333
Line coats.Accordingly the corresponding medium position for covering the first frame glue observation area 333A, covering are located at the first frame glue and see such frame glue 360
Examine multiple first observation windows 333 in the middle part of area 333A.In this case, the first frame glue observation area both sides 333A several first
Observation window 333 is not blocked, it can be seen that the interior edge of frame glue 360 or outer, even frame glue 360 are in second substrate 340
Coating situation.
Said effect can be used as by introducing substrate cut line and viewing area with reference to auxiliary, accurately define the first frame
The relative position of glue observation area 333A and frame glue 333.
First substrate 330 is detached along substrate cut line 333 by cutting.As shown in Figure 3c, the substrate cut line B3 is to institute
State the distance W of the first frame glue observation area outers 333A1, with the substrate cut line B3 to 360 outer distance W of the frame glue2's
Relationship is (W2/4)<W1<(W2/2).Further, the viewing area 310 in first frame glue observation area 333A edge away from
From W3, with the viewing area 310 to edge distance W in the frame glue 3604Relationship be (W4/4)<W3<(W4/2)。
For example, for width is 1.5mm non-display areas 320, the frame glue line width d after preferably shaping can be 0.3mm.Frame
Distance W of the glue outer to substrate cut line1Can be edge in 0.6mm, frame glue to the distance between viewing area 310 W2Can be
0.6mm.Accordingly, preferably distance W of the outer of first frame glue observation area 333A to substrate cut line3For 0.15~0.3mm,
Distance W of the interior edge of first frame glue observation area 333A to display area 3104For 0.15~0.3mm.On the one hand this structure both may be used
By meet to frame glue coating in the form of observe requirement, and can give observer provide contrast object, can judge that frame glue is rapidly
It is no in suitable range.
Similarly, with reference to shown in figure 3d, in order to meet the enough width in frame glue observation area with the coating feelings of clear view frame glue
The wide cut D of condition, frame glue observation area is slightly larger than frame glue line width d；Simultaneously in order to not influence to the basic structure of second substrate, preferably d<
D<3d。
Since the wide cut of non-display area 320 is uncertain, the coating parameters of frame glue are caused to also tend to need to adjust so that frame glue
Coating be susceptible to deviation or deformation.In order to enable " selective examination " effect of the second observation window 333s is played and is maximized, frame glue
Various problem conditions can be noted that frame glue 360 is preferably along the non-display area 320 from the second observation window 333s
Mandrel line coats.Accordingly the corresponding medium position for covering the second frame glue observation area 333A ', covering are located at second to such frame glue 360
Multiple second observation window 333s in the middle part of the 333A ' of frame glue observation area.In this case, the second frame glue observation area both sides 333A '
Several second observation windows 333s is not blocked, it can be seen that the interior edge of frame glue 360 or outer, even frame glue 360 are
The coating situation of one substrate 330.
Said effect can be used as by introducing substrate cut line and viewing area with reference to auxiliary, accurately define the second frame
The relative position of glue observation area 333A ' and frame glue 333.
Second substrate 340 is detached along substrate cut line B2 by cutting.As shown in Figure 2 c, the substrate cut line B2 is described in
The distance W5 of the second frame glue observation area outers 333A ', with the substrate cut line B2 to 360 outer distance W6's of the frame glue
Relationship is (W6/4)<W5<(W6/2).Further, the viewing area 310 to the interior edges second frame glue observation area 333A '
Distance W7, the relationship of edge distance W8 is (W8/4) in the viewing area 310 to the frame glue 360<W7<(W8/2).
For example, for width is 1.5mm non-display areas 320, the frame glue line width d after preferably shaping can be 0.3mm.Frame
The distance W5 of glue outer to substrate cut line can be 0.6mm, in frame glue along can be to the distance between viewing area 310 W6
0.6mm.Accordingly, preferably the outer of second frame glue observation area 333A ' to substrate cut line distance W7 be 0.15~
The distance W8 of interior edge to the display area 310 of 0.3mm, the second frame glue observation area 333A ' is 0.15~0.3mm.This structure one
Aspect can not only meet the requirement to frame glue coating form observation, but also can give observer and provide according to object, can sentence rapidly
Whether disconnected frame glue is in suitable range.
When observation, can from first substrate irradiation light (not showing on figure), allow light by the first observation window 333 and pass through
In the black-matrix layer 343 for reaching second substrate 340 by liquid crystal layer 350, and it is reflected back first substrate 330 via a little light,
To reach the situation that monitoring frame glue 360 is coated with.Or can also from second substrate irradiation light (not showing on figure), allow light
Line is reached by the second observation window 333s and via liquid crystal layer 350 on the metal layer 334 of first substrate 330, and via a little light
Line reflection returns second substrate 340, to reach the situation that monitoring frame glue 360 is coated with.The present embodiment can be from the two of liquid crystal display panel
Face can observe frame glue so that detection is more comprehensively, more acurrate.
Gap between first substrate 330, second substrate 340 is supported in order to stablize, and can also be mixed in the sealing space
Some spacers 370, provide the support force of upper layer and lower layer substrate.Wherein, spacer 370 can be spherical shape or column, at least
One spacer 370 is set between the liquid crystal layer 350 and the frame glue 360, reduce liquid crystal molecule with it is uncured
Frame glue material contacts and the chance that chemically reacts.
According to above-mentioned, the disclosure by opening up the frame glue area of observation coverage and frame glue is seen simultaneously on first substrate, second substrate
Cha Qu so that frame glue can be inspected from substrate two sides, monitor its coating situation, find the coating problem of frame glue in time, effectively
It improves product qualification rate and reduces production cost.Above-described embodiment only enumerates a little figure, and field those skilled in the art can be appreciated that frame glue
The figure of observation window is without being limited thereto, and allocation position can be put according to the confined space, and when insufficient space, frame glue observation window can be tight
It is adjacent and interconnected.
Claims (10)
1. a kind of liquid crystal display panel, which is characterized in that including：
Active switch array substrate, the non-display area with viewing area and positioned at viewing area periphery are set on the non-display area
It includes multiple first observation windows to have the first frame glue observation area, first frame glue observation area；
Colored filter substrate is opposite with the active switch array substrate；
Liquid crystal layer is set between the active switch array substrate and the colored filter substrate, and positioned at described aobvious
Show in area；And
Frame glue is set between the active switch array substrate and the colored filter substrate, and positioned at described non-aobvious
Show in area；First observation window described in the frame glue covering part.
2. liquid crystal display panel according to claim 1, wherein be provided with film crystalline substance in the active switch array substrate
Body pipe, the thin film transistor (TFT) include to be formed active electrode, drain electrode, gate electrode and/or scan line, data line metal layer；
It is provided with black-matrix layer and transparent electrode on the colored filter substrate.
3. liquid crystal display panel according to claim 2, wherein the multiple first observation window is set to the metal layer
On.
4. liquid crystal display panel according to claim 2 or 3, wherein first observation window exposes the part coloured silk
Colo(u)r filter substrate.
5. liquid crystal display panel according to claim 1, wherein further include substrate cut line, the substrate cut line arrives
The distance W of first frame glue observation area outer1, with the substrate cut line to the frame glue outer distance W2Relationship be
(W2/4)<W1<(W2/2)。
6. liquid crystal display panel according to claim 1 or 5, wherein the viewing area to first frame glue observation area
The distance W on interior edge3, in the viewing area to the frame glue edge distance W4Relationship be (W4/4)<W3<(W4/2)。
7. liquid crystal display panel according to claim 1 or 5, wherein first frame glue observation area and the frame glue line
Wide ratio is to be less than 3 more than 1.
8. liquid crystal display panel according to claim 1, wherein the pattern of windows of the multiple first observation window is rectangle
Or round or ellipse or prismatic.
9. a kind of liquid crystal display panel, which is characterized in that including：
Colored filter substrate, the non-display area with viewing area and positioned at viewing area periphery, the non-display area are equipped with
First frame glue observation area, first frame glue observation area include multiple first observation windows；
Active switch array substrate, it is opposite with the colored filter substrate；
Liquid crystal layer is set between the active switch array substrate and the colored filter substrate, and positioned at described aobvious
Show in area；And
Frame glue is set between the active switch array substrate and the colored filter substrate, and positioned at described non-aobvious
Show in area；First observation window described in the frame glue covering part.
10. a kind of liquid crystal display panel, which is characterized in that including：
First substrate comprising be set to the first frame glue observation area of non-display area, first frame glue observation area includes multiple
First observation window；
Second substrate is opposite with the first substrate comprising it is set to the second frame glue observation area of non-display area, described
Two frame glue observation areas include multiple second observation windows；
Spacer is set between the first substrate and the second substrate, for be spaced the first substrate with it is described
Second substrate；
Liquid crystal layer is set between the first substrate, second substrate, the non-display area around the liquid crystal layer be arranged with
Define viewing area corresponding with the liquid crystal layer；
Frame glue around the liquid crystal layer, is set between the first substrate, second substrate；The frame glue covering part institute
State the first observation window and the second observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232227.4U CN207742439U (en) | 2017-09-22 | 2017-09-22 | Liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232227.4U CN207742439U (en) | 2017-09-22 | 2017-09-22 | Liquid crystal display panel |
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| CN207742439U true CN207742439U (en) | 2018-08-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529628A (en) * | 2017-09-22 | 2018-01-02 | 惠科股份有限公司 | Liquid crystal display panel |
| CN107688257A (en) * | 2017-09-22 | 2018-02-13 | 惠科股份有限公司 | A kind of liquid crystal display panel |
| CN113031323A (en) * | 2021-03-22 | 2021-06-25 | 绵阳惠科光电科技有限公司 | Frame sealing glue width detection method, display panel and display device |
-
2017
- 2017-09-22 CN CN201721232227.4U patent/CN207742439U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529628A (en) * | 2017-09-22 | 2018-01-02 | 惠科股份有限公司 | Liquid crystal display panel |
| CN107688257A (en) * | 2017-09-22 | 2018-02-13 | 惠科股份有限公司 | A kind of liquid crystal display panel |
| CN113031323A (en) * | 2021-03-22 | 2021-06-25 | 绵阳惠科光电科技有限公司 | Frame sealing glue width detection method, display panel and display device |
| CN113031323B (en) * | 2021-03-22 | 2022-09-09 | 绵阳惠科光电科技有限公司 | Frame sealing glue width detection method, display panel and display device |
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