CN101430462A - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
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- CN101430462A CN101430462A CNA2007100480371A CN200710048037A CN101430462A CN 101430462 A CN101430462 A CN 101430462A CN A2007100480371 A CNA2007100480371 A CN A2007100480371A CN 200710048037 A CN200710048037 A CN 200710048037A CN 101430462 A CN101430462 A CN 101430462A
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- shading graph
- substrate
- display panels
- signal wire
- gate line
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Abstract
The invention relates to a liquid crystal display panel which comprises a first basic board and a second basic board as well as a frame glue arranged between the first basic board and the second basic board, a shading graph arranged in the frame glue as well as signal lines and grid lines formed on the first basic board; wherein, a contact hole is respectively formed between neighboring signal lines and between neighboring grid lines on the shading graph; a conductive layer is formed on the contact holes and connected with the contact holes. The liquid crystal display panel reduces the shading graph and the graph of an oxide conductive layer and reduces the parasitic capacitance between the signal lines and the signals lines.
Description
Technical field
The present invention relates to a kind of display panels, particularly reduce the display panels of frame glue endoparasitism electric capacity.
Background technology
(Liquid Crystal Display is a kind of passive demonstration LCD) to liquid crystal indicator, and it can not be luminous, can only use the light of surrounding environment, and its display pattern or character only need very little energy.Just because of low-power consumption and miniaturization make LCD become preferable display mode.The used liquid crystal material of liquid crystal display is a kind of organism that has liquid and solid double properties concurrently, and its club shaped structure is arranged in liquid crystal cell, but can change its orientation under electric field action.
Usually, liquid crystal indicator (LCD) 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 following basic meal, accompany glass substrate, colored filter, electrode, liquid crystal layer and transistor film between two polaroids, liquid crystal molecule is the material with refractive index and dielectric constant anisotropy.Because liquid crystal material itself is not luminous, so be provided with fluorescent tube as light source, and a backlight (or claiming even tabula rasa) and reflective membrane are arranged at the LCDs back side, and backlight can be launched light by what fluorescent material was formed, and its effect mainly provides uniform background light source.The light that backlight is sent enters the liquid crystal layer that comprises thousands of quartzy drops after passing the ground floor polarization filter layer.Quartzy drop in the liquid crystal layer all is comprised in the tiny cell structure, and one or more cells constitute a pixel on the screen.Be transparent electrode between glass plate and liquid crystal material, electrode is divided into row and column, and on the point of crossing with row of being expert at, by changing the optically-active state that voltage changes liquid crystal, the effect of liquid crystal material is similar to one by one little light valve.At the liquid crystal material periphery is control circuit part and driving circuit section.When the electrode among the LCD produced electric field, liquid crystal molecule will produce distortion, thereby the light that will pass through wherein carries out well-regulated refraction, and the filtration through second layer filtering layer shows on screen then.
Display panels comprises first substrate, and second substrate, a liquid crystal layer are sandwiched between first substrate and second substrate, and first substrate and second substrate close by the frame sticker.Frame glue is used for fixing first substrate and second substrate, and with liquid crystal and extraneous the isolation.Pass through the first metal gate polar curve and second metallic signal lines of first substrate on first substrate, source electrode, and active layer constitutes the transistor switch of control pixel work.Gate line is the first metal layer figure, and signal wire, source electrode are second metal layer image.Show different colors by chromatograph on second substrate, stop unemployed light by black matrix".
In the frame glue of first substrate and second baseplate-laminating, in order to stop light to leak by frame glue, someone has added shading graph in frame glue, usually adopt first metal or second metal to form shading graph, this shading graph inserts in the frame glue and the first adjacent metal gates, second metal-drain is the different layers metal, and not with first metal gates, second metal-drain lead-in wire overlaps mutually, and is in floating state.Someone thinks that the shading graph of floating can cause the bad phenomenon of electrostatic breakdown.Connect and connection common potential (or earth potential) by the shading graph that all are floated, in shading, can prevent the bad phenomenon of electrostatic breakdown again.But when screen shows, the common potential of first substrate and second substrate can be by disturbance, need enough supplies, and do not exist first metal gates this moment, and the display panels periphery in the second metallic signal lines zone is by the oxide conducting layer, gold goal connects the first substrate public electrode and the second substrate public electrode, thereby provide common potential to the second substrate public electrode, reduce flicker, that crosstalks etc. is bad.Need the gold goal and the first substrate public electrode but enough common potential are supplied with, the contact area that the second substrate public electrode is enough big could realize.But surface of contact connects big more peripheral design space will be reduced.And with the shading graph in the time-frame glue and first metal gates, the common potential that the second metallic signal lines overlapping place connects is not utilized, and display panels periphery design space is little.Shading graph connects common potential (or behind earth potential) in the frame glue, produces big stray capacitance (and producing big stray capacitance between second substrate) between the first metal gate polar curve of the meeting and first substrate, second metallic signal lines, influences normal image quality.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of display panels, reduces stray capacitance between shading graph and oxide conducting layer pattern and gate line, the signal wire by this display panels
For achieving the above object, the invention provides a kind of display panels, it comprises first substrate and second substrate, frame glue between first substrate and second substrate, be positioned at the shading graph of frame glue, be formed at signal wire and gate line on first substrate, its substantive distinguishing features is, between adjacent signals line, adjacent gate polar curve and be positioned on the shading graph and form a contact hole, form conductive layer on the contact hole and be connected with it.
The present invention is owing to adopted above-mentioned technical scheme, make it compared with prior art, have following advantage and good effect: display panels of the present invention and gate line, overlapping place between the signal scanning line disconnects or a part connects, can also the oxide conducting layer pattern and gate line, overlapping place between the signal wire disconnects or web form reduces the area that overlaps, the common potential that shading graph connects in the frame glue is by the oxide conducting layer like this, gold goal is connected to the second substrate public electrode, provide enough common potential to supply with in the light leak in effectively blocking frame glue, increased the design space of display panels periphery, reduced flicker, it is bad to crosstalk etc.The figure of simultaneous oxidation thing conductive layer and first shading graph, second shading graph overlap and sentence that part connects or the stray capacitance of netted connection between can further reducing.
Description of drawings
Fig. 1 is the planimetric map of display panels first embodiment of the present invention;
Fig. 2 is the cut-open view along the A-A ' direction of Fig. 1;
Fig. 3 is the cut-open view along the B-B ' direction of Fig. 1;
The shading graph synoptic diagram that Fig. 4 forms for the present invention;
Fig. 5 is shading graph and gate line, signal wire overlapping place part connection diagram;
Fig. 6 is the planimetric map of display panels second embodiment of the present invention;
Fig. 7 is the cut-open view along the A-A ' direction of Fig. 6;
Fig. 8 is the cut-open view along the B-B ' direction of Fig. 6;
Fig. 9 is the light leak shading graph at the synoptic diagram that disconnects with gate line, signal wire overlapping place.
Embodiment
Below with reference to accompanying drawing display panels of the present invention is described in further detail.
Embodiment 1
Fig. 1 is the planimetric map of display panels first embodiment of the present invention, and Fig. 2 is the cut-open view along the A-A ' direction of Fig. 1.As shown in Figure 1 and Figure 2, display panels of the present invention is made up of the liquid crystal layer that first substrate 1000, second substrate 2000, are sandwiched between first substrate 1000 and second substrate 2000, and first substrate 1000 and second substrate 2000 are fitted by frame glue 600.Frame glue 600 is used for fixing first substrate 1000 and second substrate 2000, and with liquid crystal layer and extraneous the isolation.First substrate 1000 has the controlling grid scan line 101 and signal wire 301, transistor source and the active layer that are positioned on first substrate 1000 and constitutes the transistor switch of controlling pixel work.The figure that gate line 101 forms for the first metal layer, signal wire 301 are the figure that second metal level forms.
Fig. 3 is the cut-open view along the B-B ' direction of Fig. 1.As Fig. 2, shown in Figure 3, the gate line 101 that on first substrate 1000, forms, public electrode wire, first shading graph 102 by the first metal layer, first shading graph 102 is across signal wire 301, the insulation course 200 that forms covers on the figure of the first metal layer, on insulation course 200, form active layer pattern, the signal wire 301 and second shading graph, 302, the second shading graph 302 that form second metal level on the active layer figure are across described gate line 101.As shown in Figure 4, first shading graph 102, second shading graph 302 are formed in the frame glue 600, on second shading graph 302, form insulation course 900 then, be formed between adjacent signals line 301, the adjacent gate polar curve 101 and be positioned at contact hole 400 on first shading graph 102, second shading graph 302, on contact hole 400, form conductive layer at last, this conductive layer is transparent oxide conducting layer, as its material is indium tin oxide (Indium TinOxide, ITO) or indium-zinc oxide (Indium Zinc Oxide, IZO).When forming viewing area pixel electrode 502, form and be electrically connected first shading graph 102, the oxide conducting layer pattern 500 of second shading graph 302, oxide conducting layer pattern 500 and gate line 101, signal wire 301 do not overlap and be interrupted be distributed in the viewing area around, oxide conducting layer pattern 500 is with gate line 101, signal wire 301 is for carrying out the discontinuous arrangement at interval and passing through the contact hole 400 and first shading graph 102, second shading graph 302 is electrically connected, gate line 101, the oxide conducting layer pattern 500 of signal wire 301 adjacent both sides mutually disjoints, but because first shading graph 102, second shading graph 302 with gate line 101, signal wire 301 overlapping places 103,303 connect, so guarantee in the frame glue 600 that oxide conducting layer 500 is connected to common potential everywhere, and be connected to public electrode 501 by gold goal 700, strengthen the common potential supply capacity of the public electrode 501 of second substrate 2000, thereby reduced flicker, it is bad to crosstalk etc.Simultaneously because frame glue 600 width are big, so the stray capacitance at first shading graph 102, second shading graph 302 and gate line 101, signal wire 301 overlapping places 103,303 is very big.As shown in Figure 5, when first shading graph 102, second shading graph 302 are being connected with part with gate line 101, signal wire 301 overlapping places 103,303 or netted connected mode when designing, thereby reduce their stray capacitances each other.The figure of simultaneous oxidation thing conductive layer 500 and first shading graph 102, second shading graph, 302 overlapping places 103,303 connect with part or the stray capacitance of netted connection between also can reducing.
Embodiment 2
Fig. 6 is the planimetric map of display panels second embodiment of the present invention, and Fig. 7 is the cut-open view along the A-A ' direction of Fig. 6.As Fig. 6, shown in Figure 7, display panels of the present invention is sandwiched between first substrate 1000 and second substrate 2000 by first substrate 1000, second substrate, 2000, one liquid crystal layers to be formed, and first substrate 1000 and second substrate 2000 are fitted by frame glue 600.Frame glue 600 is used for fixing first substrate 1000 and second substrate 2000, and with liquid crystal layer 600 and extraneous the isolation.The controlling grid scan line 101 and signal wire 301, source electrode and the active layer that have on first substrate 1000 by first substrate 1000 constitute the transistor switch of controlling pixel work.The figure that gate line 101 forms for the first metal layer, signal wire 301 is the figure of second metal level.
Fig. 8 is the cut-open view along the B-B ' direction of Fig. 6.As Fig. 7, shown in Figure 8, on first substrate 1000, have gate line 101, public electrode wire, first shading graph 102 that the first metal layer forms, first shading graph 102 is across signal wire 301, the insulation course 200 that forms covers on the figure of the first metal layer, on insulation course 200, form active layer pattern, the signal wire 301, second shading graph, 302, the second shading graph 302 that form second metal level on the active layer figure are across described gate line 101.First shading graph 102, second shading graph 302 is formed in the frame glue 600, on shading graph 302, form insulation course 900 then, contact hole 400 on the figure of making the first metal layer and the figure of second metal level, form the oxide conducting layer at last, this oxide conducting layer is a transparency conducting layer, as its material is indium tin oxide (Indium TinOxide, ITO) or indium-zinc oxide (Indium Zinc Oxide, IZO), when forming viewing area pixel electrode 502, form and be electrically connected first shading graph 102, the oxide conducting layer pattern 500 of second shading graph 302, this oxide conducting layer pattern 500 is by the contact hole 400 and first shading graph 102, second shading graph 302 is electrically connected, in order to reduce first shading graph 102, second shading graph 302 and gate line 101, stray capacitance between the signal wire 302, as shown in Figure 9, prevent first shading graph 102 of light leak, second shading graph 302 with gate line 101, overlapping place 103 between the signal wire 302,303 disconnect, but in order to prevent first shading graph 102 of light leak, second shading graph 302 and gate line 101, certain overlapping amount A is arranged between the signal wire 302, B, oxide conducting layer 500 be continuous and and gate line 101, signal wire 302 overlaps, and at this moment shading graph is not floated and is connected with common potential.When having prevented that shading graph from floating, common potential is connected to public electrode 501 by oxide conducting layer 500, gold goal 700, strengthen the supply capacity of the second substrate common potential, thereby reduced flicker, it is bad to crosstalk etc.The figure of simultaneous oxidation thing conductive layer 500 and first shading graph 102, second shading graph, 302 overlapping places 103,303 connect with part or the stray capacitance of netted connection between can further reducing.
That more than introduces only is based on preferred embodiment of the present invention, can not limit scope of the present invention with this.Any measurement mechanism of the present invention is done replacement, the combination, discrete of step well know in the art, and the invention process step is done well know in the art being equal to change or replace and all do not exceed exposure of the present invention and protection domain.
Claims (10)
1. display panels, it comprises first substrate and second substrate, frame glue between first substrate and second substrate, be positioned at the shading graph of frame glue, be formed at signal wire and gate line on first substrate, it is characterized in that, between adjacent signals line, adjacent gate polar curve and be positioned on the shading graph and form a contact hole, form conductive layer on the contact hole and be connected with it.
2. display panels as claimed in claim 1, described conductive layer are transparent oxide conducting layer.
3. display panels as claimed in claim 2, described oxide conducting layer material is an indium tin oxide.
4. display panels as claimed in claim 2, described oxide conducting layer material is an indium-zinc oxide.
5. display panels as claimed in claim 1, described conductive layer is by being connected with gold goal in the frame glue and electrically connecting with public electrode.
6. display panels as claimed in claim 1, described shading graph and gate line, signal wire between overlapping place part connect.
7. display panels as claimed in claim 1, described shading graph shading graph and gate line, the netted connection in overlapping place between the signal wire.
8. display panels as claimed in claim 1, described shading graph and gate line, overlapping place between the signal wire disconnects.
9. display panels as claimed in claim 1, described shading graph comprise first shading graph and second shading graph, and first shading graph is across signal wire, and second shading graph is across gate line.
10. display panels as claimed in claim 1, described conductive layer and signal wire, gate line overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100480371A CN101430462A (en) | 2007-11-09 | 2007-11-09 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100480371A CN101430462A (en) | 2007-11-09 | 2007-11-09 | Liquid crystal display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101430462A true CN101430462A (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100480371A Pending CN101430462A (en) | 2007-11-09 | 2007-11-09 | Liquid crystal display panel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354069A (en) * | 2011-06-24 | 2012-02-15 | 友达光电股份有限公司 | Liquid crystal display panel |
| WO2013060187A1 (en) * | 2011-10-26 | 2013-05-02 | Tpk Touch Solutions (Xiamen) Inc. | Touch device and fabrication method thereof |
| WO2016095313A1 (en) * | 2014-12-19 | 2016-06-23 | 深圳市华星光电技术有限公司 | Array substrate and display device |
| CN108052162A (en) * | 2017-12-21 | 2018-05-18 | 孟斯琴 | A kind of portable notebook computer shell just recorded |
-
2007
- 2007-11-09 CN CNA2007100480371A patent/CN101430462A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354069A (en) * | 2011-06-24 | 2012-02-15 | 友达光电股份有限公司 | Liquid crystal display panel |
| CN102354069B (en) * | 2011-06-24 | 2013-05-29 | 友达光电股份有限公司 | Liquid crystal display panel |
| WO2013060187A1 (en) * | 2011-10-26 | 2013-05-02 | Tpk Touch Solutions (Xiamen) Inc. | Touch device and fabrication method thereof |
| WO2016095313A1 (en) * | 2014-12-19 | 2016-06-23 | 深圳市华星光电技术有限公司 | Array substrate and display device |
| CN108052162A (en) * | 2017-12-21 | 2018-05-18 | 孟斯琴 | A kind of portable notebook computer shell just recorded |
| CN108052162B (en) * | 2017-12-21 | 2021-01-15 | 安徽赛腾智能制造有限公司 | Portable notebook shell convenient for recording |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20090513 |