CN101950113B - Display panel - Google Patents
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- CN101950113B CN101950113B CN 200910158965 CN200910158965A CN101950113B CN 101950113 B CN101950113 B CN 101950113B CN 200910158965 CN200910158965 CN 200910158965 CN 200910158965 A CN200910158965 A CN 200910158965A CN 101950113 B CN101950113 B CN 101950113B
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Abstract
The invention relates to a display panel, comprising a first substrate, a display layer, a second substrate and a water-proofing frame, wherein the first substrate is provided with a visual zone and a ring-shaped through trench and comprises a first base, a first metal layer, a gate-insulating layer, a second metal layer, a semiconductor layer, a bibulous insulating layer and a pixel-electrode layer; the gate-insulating layer is configured between the first and second metal layers; the second metal layer exposes part of the gate-insulating layer; the bibulous insulating layer is configured on the second metal layer and the gate-insulating layer; the ring-shaped through trench runs through the bibulous insulating layer and the part, which is exposed by the second metal layer, of the gate-insulating layer, and surrounds the visual zone; and the water-proofing frame is configured in the ring-shaped through trench, connects the first substrate with the second substrate and encloses wet-proof space between the first substrate and the second substrate. The display panel has better reliability.
Description
Technical field
The present invention relates to a kind of electronic installation, particularly relate to a kind of display panel.
Background technology
Figure 1A illustrates the schematic top plan view that has known a kind of display panel now.Figure 1B illustrates the schematic top plan view in one of these pixel cells zone of the display panel of Figure 1A.Fig. 1 C illustrates the display panel of Figure 1A along the diagrammatic cross-section of profile line A-A.Fig. 1 D illustrates the pixel cell zone of Figure 1B along the diagrammatic cross-section of profile line B-B.Should be noted that, for convenience of description for the purpose of, Figure 1A omits these members of part paint display panel, and the pixel electrode of Figure 1B is represented by dotted lines.Please refer to shown in Figure 1A, Figure 1B Fig. 1 C and Fig. 1 D, existing known electrophoretic display panel (electrophoretic display panel) 100 comprises a first substrate (substrate) 110, an electrophoretic layer (electrophoresis layer) 120, one second substrate 130 and a waterproof framework (water-proofing frame) 140.First substrate 110 has a visible area V1 and comprises one first substrate (base) 111, a circuit layer (circuit layer) 112, one protective seam (passivat ion layer) 113, one moisture absorption flatness layer (bibulous planization layer) 114 and one pixel electrode layer (pixel-electrode layer) 115.
Yet when existing known electrophoretic display panel 100 was placed in the moist environment of tool, the moisture absorption flatness layer 114 that thickness is very little still can adsorb the moisture in external environment, makes extraneous moisture enter the visible area V1 of the first substrate 110 of electrophoretic display panel 100.Therefore, these on-off elements 112c in visible area V1 easily produces damage with electrophoretic layer 120 corresponding to visible area V1 because of entering of extraneous moisture, and then the fiduciary level of reduction electrophoretic display panel 100.
This shows, above-mentioned existing display panel obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, completed by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of display panel of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is to, overcome the defective that existing display panel exists, is the moisture isolation that makes the interior element of its visible area and external environment and a kind of display panel of new structure, technical matters to be solved are provided, and is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.Display panel according to the present invention proposes comprises a first substrate, a display layer, a second substrate and a waterproof framework.First substrate has a visible area and a ring-type runs through groove (ring-shaped through trench) and comprises one first substrate, a first metal layer (metal layer), a gate insulator (gate-insulating layer), one second metal level, semi-conductor layer (semiconductor layer), a moisture absorption insulation course (bibulous insulat ing layer) and a pixel electrode layer.The first metal layer is disposed in the first substrate.Gate insulator is disposed in the first substrate and is covered to the small part the first metal layer.The second metal level is disposed on gate insulator and exposes the part of gate insulator.Semiconductor layer is disposed in the first substrate.The first metal layer, the second metal level, gate insulator and semiconductor layer consist of a plurality of on-off elements.These on-off elements are positioned at visible area.
The moisture absorption insulation course is disposed on the second metal level and gate insulator.Ring-type runs through part and the ring-type that groove runs through moisture absorption insulation course and the gate insulator that is exposed by the second metal level and runs through grooved ring around visible area.Pixel electrode layer is disposed on the moisture absorption insulation course and has a plurality of pixel electrodes.Each pixel electrode is positioned at visible area and is electrically connected to one of these on-off elements.
Display layer (display layer) is disposed on pixel electrode layer and corresponding to visible area.Second substrate is disposed on display layer and has one second substrate and a common electrode layer.The common electrode layer is disposed between the second substrate and display layer.The waterproof framework is disposed at ring-type and runs through groove, connects first substrate and second substrate and surround a moisture between first substrate and second substrate and completely cut off space (wet-proofspace).Visible area, display layer, part moisture absorption insulation course and part of grid pole insulation course are positioned at moisture and completely cut off the space.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In one embodiment of this invention, above-mentioned moisture absorption insulation course comprises a protective seam and a moisture absorption flatness layer.On protective seam configuration the second metal level and gate insulator.The moisture absorption flatness layer is disposed on protective seam.
In one embodiment of this invention, above-mentioned moisture absorption insulation course is a moisture absorption flatness layer.
In one embodiment of this invention, above-mentioned waterproof framework has stickiness (adhesive), with gluing (bond) first substrate and second substrate.
In one embodiment of this invention, above-mentioned display layer is an electrophoretic layer, a liquid crystal layer (liquid crystal layer) or an organic luminous layer (organic light-emit ting diode layer, OLED layer).
The object of the invention to solve the technical problems also realizes by the following technical solutions.Display panel according to the present invention proposes comprises a first substrate, a display layer, a second substrate and a waterproof framework.First substrate has a visible area and comprises one first substrate, a first metal layer, a gate insulator, one second metal level, semi-conductor layer, a moisture absorption insulation course and a pixel electrode layer.The first metal layer is disposed in the first substrate.Gate insulator is disposed in the first substrate and the cover part the first metal layer.The second metal level is disposed on gate insulator and exposes the part of gate insulator.Semiconductor layer is disposed in the first substrate.The first metal layer, the second metal level, gate insulator and semiconductor layer consist of a plurality of on-off elements.These on-off elements are positioned at visible area.
The moisture absorption insulation course is disposed on the second metal level and gate insulator.Pixel electrode layer is disposed on the moisture absorption insulation course and has a plurality of pixel electrodes.Each pixel electrode is positioned at visible area and is electrically connected to one of these on-off elements.
Display layer is disposed on pixel electrode layer and corresponding to visible area.Second substrate is disposed on display layer and has one second substrate and a common electrode layer.The common electrode layer is disposed between the second substrate and display layer.The waterproof framework around visible area, connect first substrate and second substrate and surround a moisture between first substrate and second substrate and completely cut off the space.The part of visible area, display layer, moisture absorption insulation course and the gate insulator that is exposed by the second metal level is positioned at moisture isolated space.The waterproof framework directly is contacted with the first substrate of first substrate and the common electrode layer of second substrate.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In one embodiment of this invention, above-mentioned moisture absorption insulation course comprises a protective seam and a moisture absorption flatness layer.On protective seam configuration the second metal level and gate insulator.The moisture absorption flatness layer is disposed on protective seam.
In one embodiment of this invention, above-mentioned moisture absorption insulation course is a moisture absorption flatness layer.
In one embodiment of this invention, above-mentioned waterproof framework has stickiness, with gluing first substrate and second substrate.
In one embodiment of this invention, above-mentioned display layer is an electrophoretic layer, a liquid crystal layer or an organic luminous layer.
By technique scheme, display panel of the present invention has one of them or other advantages and beneficial effect at least:
One, connect first substrate and second substrate due to the waterproof framework and surround a moisture isolated space between first substrate and second substrate, and visible area, display layer and at least part of moisture absorption insulation course are positioned at moisture and completely cut off the space.Therefore, compare with existing known techniques, these on-off elements in the visible area of the display panel of the present embodiment can not produce because of entering of extraneous moisture damage with display layer corresponding to visible area, and then promote the fiduciary level of display panel.
Two, run through the moisture absorption insulation course and run through the part of the gate insulator that is exposed by the second metal level because ring-type runs through groove, running through groove and other patterns that form the moisture absorption insulation course so can utilize one optical cover process to form ring-type.Therefore, the manufacturing of the display panel of embodiments of the invention can be integrated with existing multiple tracks optical cover process.
Three, because the part of moisture absorption insulation course and the gate insulator that is exposed by the second metal level can be positioned at moisture isolated space fully, so can utilize one optical cover process to form the pattern of moisture absorption insulation course and the pattern of gate insulator.Therefore, the manufacturing of the display panel of embodiments of the invention can be integrated with existing multiple tracks optical cover process.
In sum, the present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Figure 1A illustrates the schematic top plan view that has known a kind of display panel now.
Figure 1B illustrates one the schematic top plan view in these pixel cells zones of the display panel of Figure 1A.
Fig. 1 C illustrates the display panel of Figure 1A along the diagrammatic cross-section of profile line A-A.
Fig. 1 D illustrates the pixel cell zone of Figure 1B along the diagrammatic cross-section of profile line B-B.
Fig. 2 A illustrates the schematic top plan view of a kind of display panel of one embodiment of the invention.
Fig. 2 B illustrates one the schematic top plan view in these pixel cells zones of the display panel of Fig. 2 A.
Fig. 2 C illustrates the display panel of Fig. 2 A along the diagrammatic cross-section of profile line C-C.
Fig. 2 D illustrates the pixel cell zone of Fig. 2 B along the diagrammatic cross-section of profile line D-D.
100: electrophoretic display panel 110,130,210,230: substrate
111,132,211,232: substrate 112,212: circuit layer
112a, 212a: data line 112b, 212b: sweep trace
112c, 212c: on-off element 113,213a: protective seam
114,213b: moisture absorption flatness layer 115,215: pixel electrode layer
115a: pixel electrode 120: electrophoretic layer
134,234: common electrode layer 140,240: the waterproof framework
200: display panel 212d, 212h: metal level
212e: gate insulator 212f: semiconductor layer
212g: ohmic contact layer 213: moisture absorption insulation course
213c: contact hole 220: display layer
C2: moisture completely cuts off space D1, D2: drain electrode
G2: grid P1, P2: pixel cell is regional
S2: source electrode T2: ring-type runs through groove
V1, V2: visible area
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with drawings and Examples, its embodiment of display panel, structure, feature and effect thereof to foundation the present invention proposes are described in detail as follows.
Fig. 2 A illustrates the schematic top plan view of a kind of display panel of one embodiment of the invention.Fig. 2 B illustrates one the schematic top plan view in these pixel cells zones of the display panel of Fig. 2 A.Fig. 2 C illustrates the display panel of Fig. 2 A along the diagrammatic cross-section of profile line C-C.Fig. 2 D illustrates the pixel cell zone of Fig. 2 B along the diagrammatic cross-section of profile line D-D.Should be noted that, for convenience of description for the purpose of, Fig. 2 A omits these members of part paint display panel, and the pixel electrode of Fig. 2 B is represented by dotted lines.Please refer to shown in Fig. 2 A, Fig. 2 B Fig. 2 C and Fig. 2 D, the display panel 200 of the present embodiment comprises a first substrate 210, a display layer 220, a second substrate 230 and a waterproof framework 240.First substrate 210 has a visible area V2 and comprises one first substrate 211, a circuit layer 212, a moisture absorption insulation course 213 and a pixel electrode layer 215.
The part of the part of the part of the first metal layer 212d, the second metal level 212h, gate insulator 212e, semiconductor layer 212f and ohmic contact layer 212g consist of a plurality of on-off element 212c.Another part of another part of the first metal layer 212d and the second metal level 212h consists of many data line 212a and multi-strip scanning line 212b.These data lines 212a and these sweep traces 212b separate out a plurality of pixel cells zone P2.Each on-off element 212c be electrically connected to these data lines 212a one of them and these sweep traces 212b one of them and be positioned at one of them of these pixel cells zone P2.These pixel cells zone P2 is positioned at visible area V2.
In detail, each on-off element 212c is for example a thin film transistor (TFT), and it has a grid (gate) G2, one source pole (source) S2 and drain electrode (drain) D2.The grid G 2 that is for example each on-off element 212c of thin film transistor (TFT) is electrically connected to corresponding sweep trace 212b.The source S 2 that is for example each on-off element 212c of thin film transistor (TFT) is electrically connected to corresponding data line 212a.The drain D 2 that is for example each on-off element 212c of thin film transistor (TFT) is electrically connected to corresponding pixel electrode 215a (seeing for details following).In the present embodiment, the first metal layer 212d comprises the grid G 2 and these sweep traces 212b of each on-off element 212c that is for example thin film transistor (TFT).The second metal level 212h comprises the source S 2 and drain D 2 and these data lines 212a of each on-off element 212c that is for example thin film transistor (TFT).
Moisture absorption insulation course 213 is disposed on the second metal level 212h and gate insulator 212e.The moisture absorption insulation course 213 of this example comprises a protective seam 213a (material for example is silicon nitride) and a moisture absorption flatness layer 213b.The material of moisture absorption flatness layer 213b for example comprises photoresist, and it is for example resin.Protective seam 213a is disposed at 212e on the second metal level 212h and gate insulator, and moisture absorption flatness layer 231b is disposed on protective seam 213a.Moisture absorption insulation course 213 exposes the part of each on-off element 212c, that is a plurality of contact holes of moisture absorption insulation course 213 (contact hole) 213c for example exposes respectively the drain D 2 for these on-off elements 212c of thin film transistor (TFT).In addition; first substrate 210 has a ring-type and runs through groove T2, its around visible area V2, the moisture absorption flatness layer 213b that runs through moisture absorption insulation course 213 and protective seam 213a and the part that runs through the gate insulator 212e that is exposed by the second metal level 212h with expose portion the first substrate 211.
It is upper and have a plurality of pixel electrode 215a that correspond respectively to these pixel cells zone P2 that pixel electrode layer 215 is disposed at the moisture absorption flatness layer 213b of moisture absorption insulation course 213.Each pixel electrode 215a is positioned at visible area V2 and for example is electrically connected to drain D 2 for one of them of these on-off elements 212c of thin film transistor (TFT) via the contact hole 213c of correspondence.
Because waterproof framework 240 connects first substrate 210 and second substrate 230 and surround the isolated space C2 of a moisture between first substrate 210 and second substrate 230, and visible area V2, display layer 220, part moisture absorption insulation course 213 and part of grid pole insulation course 212e are positioned at the isolated space C2 of moisture.Therefore, compare with existing known techniques, these on-off elements 212c in the visible area V2 of the display panel 200 of the present embodiment can not produce because of entering of extraneous moisture damage with display layer 220 corresponding to visible area V2, and then promotes the fiduciary level of display panel 200.
In addition, the ring-type of the present embodiment runs through groove T2 and runs through moisture absorption insulation course 213 and run through the part of the gate insulator 212e that is exposed by the second metal level 212h, runs through groove T2 and other patterns (for example these contact holes 213c) that form moisture absorption insulation course 213 so can utilize one optical cover process to form ring-type.Therefore, the manufacturing of the display panel 200 of the present embodiment can be integrated with existing multiple tracks optical cover process (for example five road optical cover process) and can not increase any optical cover process.In addition, in another embodiment, protective seam 213a can omit configuration.
In another embodiment, to be positioned at the part of the moisture absorption insulation course 213 outside waterproof framework 240 and the part of the gate insulator 212e that is positioned at outside waterproof framework 240 and exposed by the second metal level 212h can remove fully what this was worth emphasizing.In other words, moisture absorption insulation course 213 can be positioned at the isolated space C2 of moisture fully with the part of the gate insulator 212e that is exposed by the second metal level 212h.
Based on above-mentioned, because the part of moisture absorption insulation course 213 and the gate insulator 212e that is exposed by the second metal level 212h can be positioned at the isolated space C2 of moisture fully, so also can utilize one optical cover process to form the pattern of moisture absorption insulation course 213 and the pattern of gate insulator 212e.Therefore, the manufacturing of the display panel 200 of above-mentioned another embodiment still can be integrated with existing multiple tracks optical cover process.
In sum, the display panel of embodiments of the invention has following one of them or other advantages at least:
One, connect first substrate and second substrate due to the waterproof framework and surround a moisture isolated space between first substrate and second substrate, and visible area, display layer and at least part of moisture absorption insulation course are positioned at moisture and completely cut off the space.Therefore, compare with prior art, these on-off elements in the visible area of the display panel of the present embodiment can not produce because of entering of extraneous moisture damage with display layer corresponding to visible area, and then promote the fiduciary level of display panel.
Two, run through the moisture absorption insulation course and run through the part of the gate insulator that is exposed by the second metal level because ring-type runs through groove, running through groove and other patterns that form the moisture absorption insulation course so can utilize one optical cover process to form ring-type.Therefore, the manufacturing of the display panel of embodiments of the invention can be integrated with existing multiple tracks optical cover process.
Three, because the part of moisture absorption insulation course and the gate insulator that is exposed by the second metal level can be positioned at moisture isolated space fully, so can utilize one optical cover process to form the pattern of moisture absorption insulation course and the pattern of gate insulator.Therefore, the manufacturing of the display panel of embodiments of the invention can be integrated with existing multiple tracks optical cover process.
the above, only embodiments of the invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. display panel, it is characterized in that: this display panel comprises a first substrate, a display layer, a second substrate and a waterproof framework;
This first substrate has a visible area and a ring-type runs through groove; This first substrate comprises one first substrate, a first metal layer, a gate insulator, one second metal level, semi-conductor layer, a moisture absorption insulation course and a pixel electrode layer; This first metal layer is disposed in this first substrate; This gate insulator is disposed in this first substrate and is covered to this first metal layer of small part; This second metal level is disposed on this gate insulator and exposes the part of this gate insulator; This semiconductor layer is disposed in this first substrate, and this first metal layer, this second metal level, this gate insulator and this semiconductor layer consist of a plurality of on-off elements, and those on-off elements are positioned at this visible area; This moisture absorption insulation course is disposed on this second metal level and this gate insulator, and this ring-type runs through groove and runs through this moisture absorption insulation course with this part of this gate insulator that is exposed by this second metal level and around this visible area; This pixel electrode layer is disposed on this moisture absorption insulation course and has a plurality of pixel electrodes, and respectively this pixel electrode is positioned at this visible area and is electrically connected to one of those on-off elements; This display layer is disposed on this pixel electrode layer and corresponding to this visible area;
This second substrate is disposed on this display layer and has one second substrate and a common electrode layer, and wherein this common electrode layer is disposed between this second substrate and this display layer;
This waterproof framework is disposed at this ring-type and runs through groove, connects this first substrate and this second substrate and surround a moisture isolated space between this first substrate and this second substrate, and wherein this visible area, this display layer, this moisture absorption insulation course of part and this gate insulator of part are positioned at this moisture isolated space.
2. display panel according to claim 1 is characterized in that wherein said moisture absorption insulation course comprises:
One protective seam is disposed on this second metal level and this gate insulator; And
One moisture absorption flatness layer is disposed on this protective seam.
3. display panel according to claim 1, is characterized in that wherein said moisture absorption insulation course is a moisture absorption flatness layer.
4. display panel according to claim 1, is characterized in that wherein said waterproof framework has stickiness, with this first substrate of gluing and this second substrate.
5. display panel according to claim 1, is characterized in that wherein said display layer is an electrophoretic layer, a liquid crystal layer or an organic luminous layer.
6. display panel, it is characterized in that: this display panel comprises a first substrate, a display layer, a second substrate and a waterproof framework;
This first substrate has a visible area; This first substrate comprises one first substrate, a first metal layer, a gate insulator, one second metal level, semi-conductor layer, a moisture absorption insulation course and a pixel electrode layer; This first metal layer is disposed in this first substrate; This gate insulator is disposed in this first substrate and this first metal layer of cover part; This second metal level is disposed on this gate insulator and exposes the part of this gate insulator; This semiconductor layer is disposed in this first substrate, and wherein this first metal layer, this second metal level, this gate insulator and this semiconductor layer consist of a plurality of on-off elements, and those on-off elements are positioned at this visible area; This moisture absorption insulation course is disposed on this second metal level and this gate insulator; This pixel electrode layer is disposed on this moisture absorption insulation course and has a plurality of pixel electrodes, and wherein respectively this pixel electrode is positioned at this visible area and is electrically connected to one of those on-off elements;
This display layer is disposed on this pixel electrode layer and corresponding to this visible area;
This second substrate is disposed on this display layer and has one second substrate and a common electrode layer, and wherein this common electrode layer is disposed between this second substrate and this display layer;
This waterproof framework around this visible area, connect this first substrate and this second substrate and surround a moisture isolated space between this first substrate and this second substrate, wherein this part of this visible area, this display layer, this moisture absorption insulation course and this gate insulator that is exposed by this second metal level is positioned at this moisture isolated space, and this waterproof framework directly is contacted with this first substrate of this first substrate and this common electrode layer of this second substrate.
7. display panel according to claim 6 is characterized in that wherein said moisture absorption insulation course comprises:
One protective seam is disposed on this second metal level and this gate insulator; And
One moisture absorption flatness layer is disposed on this protective seam.
8. display panel according to claim 6, is characterized in that wherein said moisture absorption insulation course is a moisture absorption flatness layer.
9. display panel according to claim 6, is characterized in that wherein said waterproof framework has stickiness, with this first substrate of gluing and this second substrate.
10. display panel according to claim 6, is characterized in that wherein said display layer is an electrophoretic layer, a liquid crystal layer or an organic luminous layer.
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| CN 200910158965 CN101950113B (en) | 2009-07-10 | 2009-07-10 | Display panel |
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| CN 200910158965 CN101950113B (en) | 2009-07-10 | 2009-07-10 | Display panel |
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| CN101950113B true CN101950113B (en) | 2013-06-19 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947059A (en) * | 2004-04-21 | 2007-04-11 | 皇家飞利浦电子股份有限公司 | Electronic ink display device and manufacturing method thereof |
| CN101165906A (en) * | 2006-10-19 | 2008-04-23 | 元太科技工业股份有限公司 | Thin film transistor array substrate and electronic ink display device |
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| US7495644B2 (en) * | 2003-12-26 | 2009-02-24 | Semiconductor Energy Laboratory Co., Ltd. | Display device and method for manufacturing display device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947059A (en) * | 2004-04-21 | 2007-04-11 | 皇家飞利浦电子股份有限公司 | Electronic ink display device and manufacturing method thereof |
| CN101165906A (en) * | 2006-10-19 | 2008-04-23 | 元太科技工业股份有限公司 | Thin film transistor array substrate and electronic ink display device |
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| JP特开2006-154513A 2006.06.15 |
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