CN202710882U - Liquid crystal display (LCD) panel - Google Patents
Liquid crystal display (LCD) panel Download PDFInfo
- Publication number
- CN202710882U CN202710882U CN 201220320531 CN201220320531U CN202710882U CN 202710882 U CN202710882 U CN 202710882U CN 201220320531 CN201220320531 CN 201220320531 CN 201220320531 U CN201220320531 U CN 201220320531U CN 202710882 U CN202710882 U CN 202710882U
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- Prior art keywords
- substrate
- shading region
- corner cut
- glue
- display panels
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Abstract
The utility model provides a liquid crystal display (LCD) panel which comprises a first substrate and a second substrate which are arranged oppositely. Glue is coated on the periphery between the first substrate and the second substrate. The initial position and the ending position of the glue coated between the first substrate and the second substrate coincide. The initial position and the ending position of the glue coincide and then have extension portions which are located on corner portions of the first substrate and the second substrate. The initial position and the ending position of the glue are in coincidence and arranged on the corner portions of the substrates, the problems of trust due to bad hardness caused by the fact that the a part position of the coincident joint of the initial position and the ending position runs into the inner side of a light shielding area, and the like are solved, and qualified rate of the LCD display panel is improved.
Description
Technical field
The utility model relates to liquid crystal display, particularly a kind of display panels.
Background technology
Traditional CRT monitor relies on the phosphor powder on the cathode-ray tube (CRT) electron emission bump screen to show image, but the principle of liquid crystal display is then fully different.Usually, liquid crystal display (LCD) device has upper substrate and infrabasal plate, have each other certain intervals and mutually over against.Be formed on two substrates a plurality of electrodes mutually over against.Liquid crystal is clipped between upper substrate and the infrabasal plate.Voltage is applied on the liquid crystal by the electrode on the substrate, thereby the arrangement that then changes liquid crystal molecule according to the voltage that acts on shows image, because liquid crystal indicator utilizing emitted light not as mentioned above, and it needs light source to show image.Therefore, liquid crystal indicator has the backlight that is positioned at the liquid crystal panel back.Thereby show image according to the arrangement of liquid crystal molecule control from the light quantity of backlight incident.As shown in Figure 1, accompany color membrane substrates 104, common electrode 105, liquid crystal layer 106 and array base palte 107 between upper strata polaroid 101 and the lower floor's polaroid 109, liquid crystal molecule is the material with refractive index and dielectric constant anisotropy.Form pixel electrode 108, thin film transistor (TFT) (TFT) 114, array sub-pixel 111, sweep trace 110, signal wire 112 etc. at array base palte 107.Signal wire 112 is connected to the drain electrode of TFT, and pixel electrode 108 is connected to source class, and sweep trace 110 is connected to grid.The light that backlight 113 sends becomes the polarized light with certain polarization direction through lower polaroid 109.Institute's making alive between the thin film transistor (TFT) 114 control pixel electrodes 108, and this voltage acts on the polarization direction that liquid crystal is controlled polarized light, polarized light sees through the monochromatic polarized light of corresponding color film 102 rear formation, if polarized light can penetrate upper strata polaroid 101, then demonstrates corresponding color; Electric field intensity is different, and the deflection angle of liquid crystal molecule is also different, and the light intensity that sees through is different, and the brightness of demonstration is also different.The combination of the different light intensity by three kinds of colors of RGB shows motley image.
Consult simultaneously Fig. 2 and Fig. 3, the making flow process of display panels is: make color membrane substrates 2 and array base palte 1, in color membrane substrates 2 or array base palte 1 coating one circle sealed plastic box 4, use the liquid crystal dripping device an amount of liquid crystal that in the zone that sealed plastic box 4 surrounds, drips, in vacuum environment, another piece substrate is fitted with it, use UV-irradiation and thermmohardening to make sealed plastic box 4 sclerosis fixing (sealed plastic box moulding), prevent that color membrane substrates 2 and array base palte 1 are because being subjected to external force that the skew dislocation occurs, and the decline impact that causes aligning accuracy shows, when being coated with sealed plastic box 4, should control black matrix" 5 outer peripheral areas that this sealed plastic box 4 is positioned at color membrane substrates 2, because black matrix" 5 can block ultraviolet harden fixing to sealed plastic box 4; If but towards array base palte 1 irradiation, thin film transistor (TFT) (TFT) in array base palte 1 viewing area is when being subject to UV-irradiation, free electron in the amorphous silicon is with absorbing light energy, transition occuring and flows forms electric current, destroy the TFT switching characteristic, impact shows, therefore needs to use shade-UV mask plate 8 to carry out shading.
The UV mask plate is to be cut into great display screen according to the display panel needs, among the embodiment as shown in Figure 3, display panel is to be cut into 4 (2*2) display screens, so the UV mask plate through multiexposure, multiple exposure, development, after after the operations such as baking, etching, cleaning, UV mask plate 8 is made to have four shading regions 82 and have a photic zone 81 around each shading region 81, and the substrate 1-2 that ultraviolet light (UV) 6 shines after by photic zone 81 after the applying from the top is upper so that sealed plastic box 4 sclerosis fixing (sealed plastic box moulding).
Be illustrated in figure 4 as the enlarged drawing of sealed plastic box junction among Fig. 2, starting point 41 and terminal point 42 places during the sealed plastic box coating have certain overlapping region, color membrane substrates and the direct straight flange of array base palte place are located in existing this overlapping region, cause liquid crystal leakage to avoid not connecting upper.
Existing dual mode makes the fixed-type mode of sealed plastic box 4 sclerosis, a kind of is the words that are not arranged on the sealed plastic box overlapping when the black matrix" of color membrane substrates, then the UV attaching mask makes sealed plastic box 4 sclerosis fixing (sealed plastic box moulding) on the substrate after the applying with that side of UV UV-irradiation color membrane substrates on color membrane substrates; Another kind of mode is, be arranged on the words of sealed plastic box overlapping when the black matrix" of color membrane substrates, need to be with array base palte up, then the UV attaching mask is on array base palte, and that side of establishing array base palte with the UV ultraviolet lighting again makes sealed plastic box 4 sclerosis fixing (sealed plastic box moulding) on the substrate after the applying.
If overlapping; in the sealed plastic box major part phenomenon that can form the junction shown in sealed plastic box coating junction exceptions area 10 among Fig. 4 after baseplate-laminating after-hardening sealed plastic box 4 extends; and UV mask plate shading region 82 is general from about the edge 0.35mm of sealed plastic box; sealed plastic box extension developed width after fitting at last is about 1.0mm; the monolateral sealed plastic box width that can exceed of sealed plastic box major part reaches more than the 0.4mm; so the situation (as shown in Figure 4) of UV mask plate shading region 82 inboards is gone in the major part part position after sealed plastic box often can occurring and extending; or go to the outer situation of contour substrate line; the former pollutes the reliability problem of liquid crystal at the bad sealed plastic box that causes of easily hardening, and the bad problem of substrate cutting easily occurs latter.
The utility model content
The purpose of this utility model provides a kind of display panels, has avoided glue reference position and final position overlapping position, because the bad problems such as reliability of bringing of sclerosis.
Technical scheme: the utility model discloses a kind of display panels, comprise the first substrate and the second substrate that are oppositely arranged, be coated with glue around between described first substrate and the second substrate, the reference position and the final position that are coated on the glue between first substrate and the second substrate overlap, the reference position of glue and final position have extension after overlapping, and this extension is positioned at the bight of first substrate and second substrate applying.
Wherein, also comprise the UV shading template that is positioned on the first substrate, described UV shadow shield has at least one shading region and is positioned at shading region photic zone all around, the extension that is positioned at lower floor projects to be positioned on the formed plane of upper strata shading region has view field, and the border of described view field and shading region has the interval.
Wherein, also comprise the UV shading template that is positioned on the second substrate, described UV shadow shield has at least one shading region and is positioned at shading region photic zone all around, the extension that is positioned at lower floor projects to be positioned on the formed plane of upper strata shading region has view field, and the border of described view field and shading region has the interval.
Wherein, shading region is the quadrilateral shape, and shading region one or two has one first corner cut between the adjacent limit, and the hypotenuse of described view field and the first corner cut has the interval.
Wherein, in addition three adjacent limits of described shading region have respectively one second corner cut, and the length of side of the bevelled edge of this second corner cut is all less than the length of side of the bevelled edge of described the first corner cut.
Wherein, the difference of the length of side of the angle of chamfer of the length of side of the angle of chamfer of described the first corner cut and the second corner cut is more than or equal to 200 microns.
Wherein, the length of side of the angle of chamfer of described the first corner cut is the 700-1000 micron.
Wherein, the angle of chamfer length of side of described the second corner cut is the 600-1000 micron.
Wherein, described first substrate can be array base palte, and described second substrate can be color membrane substrates.
Beneficial effect: the utility model is by overlapping the reference position of glue and final position the structure in the bight that is located at substrate, avoid reference position and final position overlapping position part position to go to the bad problems such as reliability of bringing of hardening that cause of shading region inboard, improved the yields of display panels.
Description of drawings
The stereographic map of Fig. 1 prior art display panels;
Fig. 2 is the floor map of prior art display panels;
Fig. 3 is the synoptic diagram that carries out the engineering of ultraviolet light polymerization sealed plastic box;
Fig. 4 is the enlarged drawing of sealed plastic box junction among Fig. 2;
Fig. 5 is the floor map of the utility model display panels;
Fig. 6 is Fig. 5 reference position and the enlarged drawing of the extension that overlaps the glue after the position overlaps;
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
As shown in Figure 5 and Figure 6, the utility model discloses a kind of display panels, this display panels comprise first substrate 1, second substrate 2 and be folded in first substrate 1 and second substrate 2 between the liquid crystal (not shown), described first substrate 1 is array base palte, and described second substrate 2 is color membrane substrates.
In the process that liquid crystal is folded in first substrate 1 and second substrate 2, at first need to use drip nozzle sealing apparatus for coating at the glue 4 of first substrate 1 or second substrate 2 coatings one circle sealing, then use the liquid crystal dripping device an amount of liquid crystal that in the zone that glue 4 surrounds, drips, in vacuum environment, another piece substrate is fitted with it, and use UV-irradiation and thermmohardening to make glue 4 sclerosis fixing (sealed plastic box moulding), prevent that color membrane substrates 2 and array base palte 1 from misplacing because being subjected to external force that skew occurs, and cause that the decline impact of aligning accuracy shows.
Because first substrate 1 and second substrate 2 all are to be square, this first substrate 1 and second substrate 2 have four angles.
In the present embodiment, because the black matrix" as the second substrate 2 of color membrane substrates is arranged on the glue overlapping, needing will be as the first substrate 1 of array base palte up, so the mode of glue 4 coating is as reference position 20 coatings from one of them angle at 1 four angles of first substrate, clockwise direction or counter clockwise direction are to being coated with around the first substrate 1, the reference position that the final position of last glue 4 is got back to coating, and then form the glue 4 of a circle sealing, then use the liquid crystal dripping device an amount of liquid crystal that in the zone that glue 4 surrounds, drips, in vacuum environment, second substrate 2 and first substrate 1 are fitted, the UV attaching mask is on first substrate, and that side of establishing first substrate with the UV ultraviolet lighting again makes sealed plastic box 4 sclerosis fixing (sealed plastic box moulding) on the substrate after the applying.
Form the extension 20 of glue after the reference position of glue 4 and final position overlap in the present embodiment, the angle place of this extension between first substrate after the applying 1 and second substrate 2.
In the present embodiment, employed UV shadow shield has and is cut into the shading region 60 of display screen respective number with this display panel and is positioned at photic zone 70 around the shading region 60.
Owing to form the place, angle that the extension 20 of glue is positioned at first substrate 1 and second substrate 2 applyings after the reference position of glue 4 and final position overlap, the border of the extension 20 of the glue that is positioned at lower floor can not blocked in the border that is positioned at the shading region 60 on upper strata, and ultraviolet light sees through from photic zone 70 sclerosis of the extension 20 of glue is fixed
Harden fixing in order to allow shading region 60 can not block ultraviolet light to the extension 20 of glue, because shading region 60 also is square, it also has four angles, this shading region 60 carries out corner cut and forms the first corner cut 601 one of them angle, and other three angles and all form the second corner cut 602, the length of side a of the angle of chamfer of the first corner cut 601 is larger than the side length b of the second corner cut 602 angles of chamfer, and four angles of in fact existing general shading region 60 all become to be cut into the same corner cut of the second corner cut in the present embodiment.
The extension 20 that forms glue after the reference position of described glue 4 and final position overlap is positioned at the below that forms the first corner cut 601 local that cuts, and extension 20 and the first corner cut 601 be with projecting to all spacing distances of the zone that forms respectively in the same plane, thereby so that shading region 60 can block ultraviolet to the curing of glue.
Because the first corner cut 601 is not to be positioned at same plane with the extension 20 of glue, in order better to explain the utility model, project to extension 20 in the shading region 60 formed planes and projection formation view field, like this so that extension and shading region 60 are positioned at same zone, after the projection, the hypotenuse of the view field of extension 20 and shading region 60 has the gap, and namely the view field of extension and shading region 60 do not have overlapping part.
Be reference position and the enlarged drawing of the extension 20 that overlaps the glue after the position overlaps such as Fig. 5, extension 20 and shading region 60 are projected to after the same zone, the former incision site of the first corner cut is at A1, the new incision site of the first corner cut is at A2, the extended distance that increases between former incision site A1 and the new incision site A2 is L1, the width of glue is H3, shading region 60 is H2 to the glue inner distance, shading region 60 is H1 to the distance of viewing area, because former incision site A1 is L1 with the extended distance that newly increases between the incision site A2, so shading film can block ultraviolet the extension of glue is cured.
The length of side a of the angle of chamfer of the first corner cut is the 700-1000 micron, and the side length b of the angle of chamfer of the second corner cut is the 600-1000 micron, and a subtracts b more than or equal to 200 microns.UV mask plate and first substrate 1 have certain distance, and directly over parallel being positioned at, when shining by ultraviolet ray, form shading region 60 at first substrate 1, simultaneously also forming the angle of chamfer length of side corresponding with the first corner cut at shading region 60 is the border of cutting sth. askew of a, if with the angle of chamfer length of side of the second corner cut relativity be the border a that cuts sth. askew of b when equaling 700 microns, 1/2 diagonal distance h of shading region 60 angles of chamfer approximates 490 microns.Extension 20 to the UV mask plate shading regions 60 of the glue after reference position and final position overlap are cut sth. askew the distance on border 601 much larger than the extension 20 monolateral distances of glue width more than 400 microns that exceed.
What the second embodiment was different from above-mentioned the first embodiment is, be not arranged on the words of glue overlapping when the black matrix" as the color membrane substrates of second substrate, glue 4 coating methods from an angle of second substrate as reference position, after around the coating second substrate, at the second substrate an amount of liquid crystal that drips, then first substrate and second substrate are fitted, the UV attaching mask is on second substrate, and that side of establishing second substrate with the UV ultraviolet lighting again makes sealed plastic box 4 sclerosis fixing (sealed plastic box moulding) on the substrate after the applying.
The design of the shading region of the UV mask plate of the second embodiment is same as the previously described embodiments, so repeated description not.
The UV attaching mask is on second substrate, and rear that side with UV UV-irradiation color membrane substrates makes sealed plastic box 4 sclerosis fixing (sealed plastic box moulding) on the substrate after the applying
When the utility model passes through UV-irradiation, extension position after the coincidence of glue start-stop position and final position can not occur and go to the situation of UV mask plate light shielding part inboard, also the reliability problem of the bad glue stain liquid crystal that causes of sclerosis occuring and the bad problem of substrate cutting occurs with regard to having avoided, has improved the yields of liquid crystal display.
Claims (9)
1. display panels, comprise the first substrate and the second substrate that are oppositely arranged, be coated with glue around between described first substrate and the second substrate, it is characterized in that: the reference position and the final position that are coated on the glue between first substrate and the second substrate overlap, the reference position of glue and final position have extension after overlapping, and this extension is positioned at the bight of first substrate and second substrate applying.
2. described display panels according to claim 1, it is characterized in that: also comprise the UV shading template that is positioned on the first substrate, described UV shadow shield has at least one shading region and is positioned at shading region photic zone all around, the extension that is positioned at lower floor projects to be positioned on the formed plane of upper strata shading region has view field, and the border of described view field and shading region has the interval.
3. described display panels according to claim 1, it is characterized in that: also comprise the UV shading template that is positioned on the second substrate, described UV shadow shield has at least one shading region and is positioned at shading region photic zone all around, the extension that is positioned at lower floor projects to be positioned on the formed plane of upper strata shading region has view field, and the border of described view field and shading region has the interval.
4. according to claim 2 or 3 described display panels, it is characterized in that: shading region is the quadrilateral shape, and shading region one or two has one first corner cut between the adjacent limit, and the hypotenuse of described view field and the first corner cut has the interval.
5. described display panels according to claim 4, it is characterized in that: in addition three adjacent limits of described shading region have respectively one second corner cut, and the length of side of the bevelled edge of this second corner cut is all less than the length of side of the bevelled edge of described the first corner cut.
6. described display panels according to claim 5, it is characterized in that: the difference of the length of side of the angle of chamfer of the length of side of the angle of chamfer of described the first corner cut and the second corner cut is more than or equal to 200 microns.
7. described display panels according to claim 5, it is characterized in that: the length of side of the angle of chamfer of described the first corner cut is the 700-1000 micron.
8. described display panels according to claim 5, it is characterized in that: the angle of chamfer length of side of described the second corner cut is the 600-1000 micron.
9. described display panels according to claim 1, it is characterized in that: described first substrate can be array base palte, described second substrate can be color membrane substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320531 CN202710882U (en) | 2012-07-03 | 2012-07-03 | Liquid crystal display (LCD) panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320531 CN202710882U (en) | 2012-07-03 | 2012-07-03 | Liquid crystal display (LCD) panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202710882U true CN202710882U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320531 Expired - Lifetime CN202710882U (en) | 2012-07-03 | 2012-07-03 | Liquid crystal display (LCD) panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202710882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684623A (en) * | 2020-12-24 | 2021-04-20 | 友达光电（昆山）有限公司 | Display panel |
-
2012
- 2012-07-03 CN CN 201220320531 patent/CN202710882U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684623A (en) * | 2020-12-24 | 2021-04-20 | 友达光电（昆山）有限公司 | Display panel |
| CN112684623B (en) * | 2020-12-24 | 2023-08-04 | 友达光电（昆山）有限公司 | Display panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |