CN202929337U - TFT (thin film transistor)-LCD (liquid crystal display) display panel and display device - Google Patents
TFT (thin film transistor)-LCD (liquid crystal display) display panel and display device Download PDFInfo
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- CN202929337U CN202929337U CN 201220674940 CN201220674940U CN202929337U CN 202929337 U CN202929337 U CN 202929337U CN 201220674940 CN201220674940 CN 201220674940 CN 201220674940 U CN201220674940 U CN 201220674940U CN 202929337 U CN202929337 U CN 202929337U
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- display panel
- lcd display
- public electrode
- array base
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Abstract
The utility model belongs to the technical field of display, and discloses a TFT (thin film transistor)-LCD (liquid crystal display) display panel and a display device. Public electrode wires which are arranged on the display panel and are positioned at the two sides of the same grid wire are electrically connected through at least one connecting electrode, the connecting electrode is arranged on a color film base plate and covers two cylindrical separation pad objects positioned at the two sides of the grid wire, and in addition, a connecting electrode positioned at the bottom end of the cylindrical separation pad objects is electrically connected with the public electrode wires arranged on an array base plate, so the electric connection of the public electrode wires arranged at the two sides of the same grid wire is realized on the color film base plate, the distance between the public electrode wires and the grid wire as well as a data wire is greatly increased, the signal interference between the public electrode wires and the grid wire as well as the public electrode wires and the data wire is reduced, the uniform distribution of public voltage signals on the array base plate is realized, the resistance of the public electrode wires on the array base plate is also reduced, and the display quality of the display device is improved.
Description
Technical field
The utility model relates to the display technique field, particularly relates to a kind of TFT-LCD display panel structure and display device.
Background technology
Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display, be called for short TFT-LCD) have the characteristics such as volume is little, low in energy consumption, radiationless, manufacturing cost is relatively low, occupied leading position in current flat panel display market.The TFT-LCD array base palte is one of vitals of TFT-LCD, its structure as shown in Figure 1, mainly comprise the substrate as substrate, be formed on gate electrode and grid line 10 on substrate, form simultaneously public electrode wire 30, wherein, gate electrode can be positioned on grid line 10, by the switch of grid line signal controlling thin film transistor (TFT) 1, the public electrode wire signal provides reference voltage for array base palte.Be formed on gate electrode and grid line 10 and cover the gate insulation layer 50 of whole substrate, offering grid insulating layer through hole 7 above public electrode wire 30, as shown in Figure 2.Form semiconductor layer (not shown), doping semiconductor layer (not shown) above gate electrode, and the source electrode 2 of thin film transistor (TFT) 1 and drain electrode 3, form simultaneously the data line 20 with grid line 10 square crossings, wherein, source electrode 2 and data line 20 are electrically connected to.Cover whole substrate with the passivation layer (not shown) again, the top that is positioned at drain electrode 3 offers passivation layer via hole 4, form pixel electrode 5 above passivation layer via hole 4, wherein, pixel electrode 5 is formed on the pixel region of grid line 10 and data line 20 restrictions, is electrically connected to drain electrode 3 by passivation layer via hole 4.In addition, also comprise on array base palte shown in Figure 1 being positioned at the connecting electrode 6 that grid line 10 tops are electrically connected to the public electrode wire 30 that is positioned at this grid line 10 both sides by grid insulating layer through hole 7, this connecting electrode 6 can be and pixel electrode 5 is made with layer.
The displaying principle of TFT-LCD is: liquid crystal is applied as switch with thin film transistor (TFT) and drive the rotation that electric field is controlled liquid crystal, thereby control the procedure for displaying of TFT-LCD.Wherein, driving electric field is produced by pixel electrode and transparent common electrode.According to the direction that drives electric field with TFT-LCD be divided into transverse electric field as the TFT-LCD(that drives electric field as: IPS type TFT-LCD), with longitudinal electric field as the TFT-LCD(that drives electric field as TN type TFT-LCD and ITN type TFT-LCD) and with multi-dimensional electric field as the TFT-LCD(that drives electric field as: ADS type TFT-LCD).
Wherein, ADS(or title AD-SDS, ADvanced Super Dimension Switch, a senior super dimension switch technology) the electric field formation multi-dimensional electric field that to be mainly the electric field that produces by gap electrode edge in same plane and gap electrode layer produce with the plate electrode interlayer, make in liquid crystal cell between gap electrode, directly over electrode, all aligned liquid-crystal molecules can both produce rotation, thereby improved the liquid crystal work efficiency and increased light transmission efficiency.A senior super dimension switch technology can improve the picture quality of TFT-LCD product, has high resolving power, high permeability, low-power consumption, wide visual angle, high aperture, low aberration, without advantages such as water of compaction ripples (push Mura).
For with transverse electric field or multi-dimensional electric field as the TFT-LCD that drives electric field, its transparent common electrode and public electrode wire all are formed on array base palte, transparent common electrode is connected with public electrode wire, jointly forms the public electrode impedance network.
Can find out from tft array substrate structure of the prior art, be used for to be electrically connected to have between the connecting electrode 6 of the public electrode wire 30 of grid line 10 both sides and grid line 10 very large overlapping, expand to whole array base palte and just have 1920*1080(take the display screen of 1920*1080 pixel as example, can also be other pixel values) individual pixel overlapping, this all can produce very large interference to public voltage signal and grid line signal, and the homogeneous that affects common electric voltage distributes.And connecting electrode 6 is also very near with data line 20 distances, and only has one deck passivation layer between them, has side direction electric capacity, also can produce interference to public voltage signal and data line signal.
The utility model content
The technical matters that (one) will solve
The utility model provides a kind of TFT-LCD display panel structure and display device, in order to reduce on array base palte between public electrode wire and grid line and to exist signal to disturb between public electrode wire and data line, improves the display quality of display device.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of TFT-LCD display panel, comprise the array base palte and the color membrane substrates that are relatively set into box, and be arranged on cylindrical spacer between described array base palte and color membrane substrates, wherein, the public electrode wire that is positioned at same grid line both sides is electrically connected to by at least one connecting electrode; Described connecting electrode is located on described color membrane substrates and covers two cylindrical spacers that are positioned at described grid line both sides, is positioned at the described connecting electrode at place, described cylindrical spacer bottom and is electrically connected to public electrode wire on described array base palte.
TFT-LCD display panel as above, preferably, the transparent common electrode of described TFT-LCD display panel structure is formed on described color membrane substrates; And described connecting electrode is electrically connected to described transparent common electrode.
TFT-LCD display panel as above, preferably, described connecting electrode and described transparent common electrode are made with layer.
TFT-LCD display panel as above, preferably, the transparent common electrode of described TFT-LCD display panel is formed on described array base palte.
TFT-LCD display panel structure as above, preferably, described connecting electrode is the transparent conductive metal layer of two cylindrical spacers covering described grid line both sides.
TFT-LCD display panel structure as above, preferably, described transparent conductive metal layer adopts transparent metal oxide.
The utility model also provides a kind of TFT-LCD display device, adopts TFT-LCD display panel as above.
(3) beneficial effect
TFT-LCD display panel provided by the utility model and display device, the public electrode wire that is arranged in adjacent two pixel regions of same grid line both sides on this display panel is electrically connected to by at least one connecting electrode, this connecting electrode is located on color membrane substrates and covers two cylindrical spacers that are positioned at this grid line both sides, and being positioned at the connecting electrode at place, cylindrical spacer bottom is electrically connected to public electrode wire on array base palte, thereby realize the electrical connection of same grid line both sides public electrode wire on color membrane substrates, greatly increased the distance of public electrode wire and grid line and data line, reduced between public electrode wire and grid line and the interference of the signal between public electrode wire and data line, the homogeneous of realizing public voltage signal on array base palte distributes, also reduced the resistance of public electrode wire on the array base palte.Simultaneously, for with longitudinal electric field as the TFT-LCD display panel that drives electric field, due to the firing point that has increased between array base palte and color membrane substrates, realized that on the color membrane substrates, the homogeneous of public voltage signal distributes, overcome public voltage signal and added the signal delay that causes signal to arrive the color membrane substrates centre from surrounding.Adopt above-mentioned display panel can improve the display quality of display device.
Description of drawings
Fig. 1 is the structural representation of TFT-LCD display panel array base palte in prior art;
Fig. 2 is that Fig. 1 is along the cut-open view of A-A direction;
Fig. 3 is the structural representation of TFT-LCD display panel array base palte in the utility model embodiment;
Fig. 4 be in the utility model embodiment the TFT-LCD display panel along the cut-open view of A-A direction in Fig. 3;
Wherein, 1: thin film transistor (TFT); 2: the source electrode; 3: drain electrode; 4: passivation layer via hole; 5: pixel electrode; 6,40: connecting electrode; 7: grid insulating layer through hole; 8: cylindrical spacer; 10: grid line; 20: data line; 30: public electrode wire; 50: gate insulation layer; 60: transparent common electrode; 100: array base palte; 101: color membrane substrates.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Embodiment one
Figure 3 shows that the structural representation of TFT-LCD display panel array base palte in the utility model embodiment.As shown in Figure 3, TFT-LCD display panel array base palte 100 in the utility model embodiment comprises grid line 10, data line 20, pixel electrode 5 and the thin film transistor (TFT) 1 that is formed on array base palte 100, grid line 10, data line 20 arranged in a crossed manner define pixel region, and pixel electrode 5 is formed in pixel region.Thin film transistor (TFT) 1 comprises the gate electrode that is connected with grid line 10, the source electrode 2 that is connected with data line 20 and is connected passivation layer via hole 4 drain electrode 3 that is connected with pixel electrode 5.Also comprise public electrode wire 30 on array base palte 100, for substrate provides reference voltage.the public electrode wire 30 that is positioned at same grid line 10 both sides in the present embodiment on array base palte 100 is electrically connected to by at least one connecting electrode 40, wherein, in conjunction with shown in Figure 4, connecting electrode 40 is located on color membrane substrates 101 and covers two cylindrical spacers 8 that are positioned at this grid line 10 both sides, being positioned at the connecting electrode 40 at cylindrical spacer 8 bottoms places is electrically connected to public electrode wire 30 on array base palte 100, thereby realize the electrical connection of same grid line 10 both sides public electrode wires 30 on color membrane substrates 101, greatly increased the distance of public electrode wire 30 with grid line 10 and data line 20, reduced between public electrode wire 30 and grid line 10 and the interference of the signal between public electrode wire 30 and data line 20, simultaneously because public electrode wire 30 and transparent common electrode 60 directly overlap, after utilizing connecting electrode 40 that the public electrode wire 30 of adjacent lines is connected in series, the homogeneous that can further realize public voltage signal on array base palte 100 distributes, and has also reduced the resistance of public electrode wire 30 on array base palte 100.
As shown in Figure 4, for longitudinal electric field as the TFT-LCD display panel that drives electric field, its transparent common electrode (not shown) is formed on color membrane substrates 101, is formed with the transparent conductive metal layer on color membrane substrates 101; Cylindrical spacer 8 is as the firing point between array base palte 100 and color membrane substrates 101, also be formed with the transparent conductive metal layer on it, in actual fabrication technique, only need cylindrical spacer 8 is arranged on the grid insulating layer through hole 7 of same grid line 10 both sides public electrode wires 30, just can realize the electrical connection of same grid line 10 both sides public electrode wires 30 on color membrane substrates 101.Wherein, connecting electrode 40 is electrically connected to transparent common electrode, and both can make with layer.Simultaneously, due to the firing point that has increased between array base palte 100 and color membrane substrates 101, with respect to adding public voltage signal from color membrane substrates 101 surroundings in prior art, the homogeneous of having realized public voltage signal on color membrane substrates 101 distributes, and has overcome public voltage signal and has arrived the middle signal delay of color membrane substrates 101.
Simultaneously, for with longitudinal electric field as the TFT-LCD display panel that drives electric field, due to the firing point (being the number of cylindrical spacer 8) that has increased between array base palte 100 and color membrane substrates 101, the homogeneous of having realized public voltage signal on color membrane substrates 101 distributes, overcome public voltage signal and added the signal delay that causes signal arrival color membrane substrates 101 middle from surrounding, improved display quality.
and for transverse electric field or multi-dimensional electric field as the TFT-LCD display panel that drives electric field, due to its transparent common electrode 60(as shown in Figure 4) and public electrode wire 30 all be formed on array base palte 100, in actual fabrication technique, in order to realize the electrical connection of same grid line 10 both sides public electrode wires 30 on color membrane substrates 101, need using plasma to strengthen chemical vapor deposition, coating, the methods such as sputter form the transparent conductive metal layer on the surface of color membrane substrates 101 relative array base palte 100 sides, this transparent conductive metal layer also covers two cylindrical spacers 8 that are positioned at this grid line 10 both sides, to form connecting electrode 40, thereby realize the electrical connection of same grid line 10 both sides public electrode wires 30 on color membrane substrates 101.Wherein, connecting electrode 40 in the present embodiment can be the transparent conductive metal layer of two cylindrical spacers 8 covering whole color membrane substrates 101 and grid line 10 both sides, also can be for being formed on the regional corresponding surf zone between grid line 10 both sides public electrode wires 30 and covering the transparent conductive metal layer of the cylindrical spacer 8 of grid line 10 both sides.
Wherein, the transparent conductive metal layer adopts the transparent metal oxides such as tin indium oxide or indium zinc oxide, does not affect the light transmission of display panel.
Embodiment two
The utility model also provides a kind of TFT-LCD display device, and this TFT-LCD display device adopts the TFT-LCD display panel structure in embodiment one, has improved display quality.
as can be seen from the above embodiments, TFT-LCD display panel provided by the utility model and display device, the public electrode wire that is positioned at same grid line both sides on this display panel is electrically connected to by at least one connecting electrode, this connecting electrode is located on color membrane substrates and covers two cylindrical spacers that are positioned at this grid line both sides, and being positioned at the connecting electrode at place, cylindrical spacer bottom is electrically connected to public electrode wire on array base palte, thereby realize the electrical connection of same grid line both sides public electrode wire on color membrane substrates, greatly increased the distance of public electrode wire and grid line and data line, reduced between public electrode wire and grid line and the interference of the signal between public electrode wire and data line, the homogeneous of realizing public voltage signal on array base palte distributes, also reduced the resistance of public electrode wire on the array base palte.Simultaneously, for with longitudinal electric field as the TFT-LCD display panel that drives electric field, due to the firing point that has increased between array base palte and color membrane substrates, realized that on the color membrane substrates, the homogeneous of public voltage signal distributes, overcome public voltage signal and added the signal delay that causes signal to arrive the color membrane substrates centre from surrounding.Adopt above-mentioned display panel can improve the display quality of display device.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (7)
1. TFT-LCD display panel, comprise the array base palte and the color membrane substrates that are relatively set into box, and be arranged on cylindrical spacer between described array base palte and color membrane substrates, and it is characterized in that, the public electrode wire that is positioned at same grid line both sides is electrically connected to by at least one connecting electrode; Described connecting electrode is located on described color membrane substrates and covers two cylindrical spacers that are positioned at described grid line both sides, is positioned at the described connecting electrode at place, described cylindrical spacer bottom and is electrically connected to public electrode wire on described array base palte.
2. TFT-LCD display panel according to claim 1, is characterized in that, the transparent common electrode of described TFT-LCD display panel is formed on described color membrane substrates; And described connecting electrode is electrically connected to described transparent common electrode.
3. TFT-LCD display panel according to claim 2, is characterized in that, described connecting electrode and described transparent common electrode are made with layer.
4. TFT-LCD display panel according to claim 1, is characterized in that, the transparent common electrode of described TFT-LCD display panel is formed on described array base palte.
5. TFT-LCD display panel according to claim 4, is characterized in that, described connecting electrode is the transparent conductive metal layer of two cylindrical spacers covering described grid line both sides.
6. the described TFT-LCD display panel of any one according to claim 1 to 5, is characterized in that, described transparent conductive metal layer adopts transparent metal oxide.
7. a TFT-LCD display device, is characterized in that, adopts the arbitrary described TFT-LCD display panel of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220674940 CN202929337U (en) | 2012-12-07 | 2012-12-07 | TFT (thin film transistor)-LCD (liquid crystal display) display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220674940 CN202929337U (en) | 2012-12-07 | 2012-12-07 | TFT (thin film transistor)-LCD (liquid crystal display) display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN202929337U true CN202929337U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220674940 Withdrawn - After Issue CN202929337U (en) | 2012-12-07 | 2012-12-07 | TFT (thin film transistor)-LCD (liquid crystal display) display panel and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981337A (en) * | 2012-12-07 | 2013-03-20 | 京东方科技集团股份有限公司 | TFT-LCD (Thin Film Transistor-Liquid Crystal Display) display panel and display device |
| CN106773344A (en) * | 2016-12-16 | 2017-05-31 | 惠科股份有限公司 | The processing procedure of display panel and display panel |
-
2012
- 2012-12-07 CN CN 201220674940 patent/CN202929337U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981337A (en) * | 2012-12-07 | 2013-03-20 | 京东方科技集团股份有限公司 | TFT-LCD (Thin Film Transistor-Liquid Crystal Display) display panel and display device |
| CN102981337B (en) * | 2012-12-07 | 2016-01-13 | 京东方科技集团股份有限公司 | Tft-lcd display panel and display device |
| CN106773344A (en) * | 2016-12-16 | 2017-05-31 | 惠科股份有限公司 | The processing procedure of display panel and display panel |
| WO2018107654A1 (en) * | 2016-12-16 | 2018-06-21 | 惠科股份有限公司 | Display panel and process for manufacturing display panel |
| US10732450B2 (en) | 2016-12-16 | 2020-08-04 | HKC Corporation Limited | Display panel and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |