CN104199220A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN104199220A CN104199220A CN201410328845.3A CN201410328845A CN104199220A CN 104199220 A CN104199220 A CN 104199220A CN 201410328845 A CN201410328845 A CN 201410328845A CN 104199220 A CN104199220 A CN 104199220A
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Abstract
The invention discloses a display panel and a display device, so that the problems that in the prior art, due to large resistance of common electrodes, serious green shift, residual images and other bad phenomena happen in work of the display panel are solved. The display panel comprises a first substrate and a second substrate opposite to the first substrate, a first common electrode layer is arranged on the side, opposite to the second substrate, of the first substrate, a black matrix and a second common electrode layer are sequentially arranged on the side, opposite to the first substrate, of the second substrate, and the second common electrode layer and the first common electrode layer are electrically connected. Due to the fact that the second common electrode layer corresponding to the black matrix in position is arranged on the second substrate and connected with the first common electrode layer on the first substrate, area resistance of common electrodes of the display panel is effectively reduced.
Description
Technical field
The present invention relates to field of liquid crystal display, relate in particular to a kind of display panel and display device.
Background technology
The senior super dimension of a lineoid switch technology (Hyperplane Advanced Super Dimension Switch, HADS) liquid crystal display, owing to possessing 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), is therefore more and more applied.The electric field that HADS mode LCD produces by electric field that in same plane, gap electrode edge produces and gap electrode layer and plate electrode interlayer forms multi-dimensional electric field, make in liquid crystal cell between gap electrode, directly over electrode, all aligned liquid-crystal molecules can both produce rotation, thereby improved liquid crystal work efficiency and increased light transmission efficiency, greatly improve the picture quality of Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display, TFT-LCD) product.
At work, public electrode can produce stray capacitance to HADS display panel.For example, the stray capacitance between public electrode and gate metal layer or source-drain electrode metal level.Under the thinner prerequisite of the thickness requirement of liquid crystal display, HADS technology is applied in more large scale or more during high-resolution liquid crystal display, the increase of its stray capacitance of electrical resistance of large-area public electrode and increasing, larger resistance makes to be delayed through the common signal of public electrode transmission, thereby causes HADS display panel when work, to produce the bad phenomenon such as serious partially green (greenish), image retention.The mode that reduces at present public electrode realizes by increasing passivation layer thickness conventionally, or adopt the mode of organic film that increases between source-drain electrode metal level and pixel electrode layer, reduce common electrode layer and gate metal layer, the stray capacitance forming between source-drain electrode metal level, to reduce the resistance of public electrode, but because the institute of display panel thickness is limit, it is very thick that the thickness of passivation layer or organic film can not be done, stray capacitance in common electrode layer can not effectively be reduced, therefore cannot effectively reduce the resistance of public electrode, display panel is produced when working serious partially green (greenish), the effect that the bad phenomenon such as image retention are improved is undesirable.
Summary of the invention
The object of this invention is to provide a kind of display panel and display device, to solve in prior art because public electrode has larger resistance, the display panel that causes when work, produce the problem of the bad phenomenon such as serious partially green, image retention.
The object of the invention is to be achieved through the following technical solutions:
The embodiment of the present invention provides a kind of display panel, comprising:
The first substrate being oppositely arranged and second substrate;
In a described first substrate side relative with described second substrate, be provided with the first common electrode layer;
In a described second substrate side relative with described first substrate, be disposed with black matrix and the second common electrode layer;
Described the second common electrode layer is electrically connected to described the first common electrode layer.
In this example, by the second common electrode layer is set on second substrate, and this second common electrode layer is electrically connected to the first common electrode layer, effectively reduces the surface resistance of the public electrode of display panel.
Preferably, described the second common electrode layer is within the scope of the vertical projection of described black matrix, and the width of the figure of described the second common electrode layer and the figure of described black matrix equates.In the present embodiment, the figure of described the second common electrode layer can be blocked by described black matrix, and the width of the figure of the second common electrode layer can be maximum, equals the width of the figure of described black matrix.
Preferably, described display panel also comprises the electric conductor directly contacting with described the second common electrode layer with described the first common electrode layer, and described electric conductor is conductive pole.In the present embodiment, by conductive pole, described the first common electrode layer is connected with described the second common electrode layer, makes the two parallel connection to reduce surface resistance.
Preferably, described the second common electrode layer comprises the first conductive electrode and the second conductive electrode;
Described the first conductive electrode is within the scope of the vertical projection of described black matrix, and the width of the figure of described the first conductive electrode and the figure of described black matrix equates;
Between described the second conductive electrode and described first substrate and described second substrate, the position of bonding coat is corresponding, and its width is more than or equal to the width of described bonding coat.
In the present embodiment, the second common electrode layer is also arranged at the edge of display panel, and position corresponding to described bonding coat, concrete, and bonding coat can be sealed plastic box.
Preferably, described display panel also comprises the electric conductor directly contacting with described the second common electrode layer with described the first common electrode layer, the described electric conductor directly contacting with described the first common electrode layer with described the first conductive electrode is conductive pole, and the described electric conductor directly contacting with described the first common electrode layer with described the second conductive electrode is the described bonding coat of conduction.
In the present embodiment, in different positions, with different described electric conductors, realize the connection between described the first common electrode layer and described the second common electrode layer.
Preferably, described conductive pole is the chock insulator matter of conduction.In the present embodiment, utilize the chock insulator matter of conduction to realize the connection between described the first common electrode layer and described the second common electrode layer, do not need extra technique and space hold.
Preferably, described first substrate is array base palte, and described second substrate is color membrane substrates.
Preferably, described second substrate also comprises color blocking layer and the planarization layer being arranged between described black matrix and described the second common electrode layer.
Preferably, the material of described the second common electrode layer is metal material.
Embodiment of the present invention beneficial effect is as follows: by described second common electrode layer corresponding with described black matrix position is set on described second substrate, and described the second common electrode layer is connected with described the first common electrode layer on described first substrate; Further described the second common electrode layer graphic width of part and graphic width of described black matrix corresponding with described black matrix equates, thereby the width of the figure of this part is maximized; Described the second common electrode layer and described the first common electrode layer in parallel, can effectively reduce the surface resistance of the public electrode of described display panel, reduce the time delay that common signal transmits in public electrode, thereby avoid described display panel to produce the phenomenons such as serious partially green, image retention.
The invention process row provide a kind of display device, comprise display panel as above.
Embodiment of the present invention beneficial effect is as follows: by described second common electrode layer corresponding with described black matrix position is set on described second substrate, and described the second common electrode layer is connected with described the first common electrode layer on described first substrate; Further described the second common electrode layer graphic width of part and graphic width of described black matrix corresponding with described black matrix equates, thereby the width of the figure of this part is maximized; Described the second common electrode layer and described the first common electrode layer in parallel, can effectively reduce the surface resistance of the public electrode of described display panel, reduce the time delay that common signal transmits in public electrode, thereby avoid described display panel to produce the phenomenons such as serious partially green, image retention.
Accompanying drawing explanation
The structural representation of the first display panel that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the second display panel that Fig. 2 provides for the embodiment of the present invention;
The schematic top plan view of the second common electrode layer of the first display panel providing in Fig. 1 that Fig. 3 is the embodiment of the present invention;
The schematic top plan view of the second common electrode layer of the second display panel providing in Fig. 2 that Fig. 4 is the embodiment of the present invention.
Reference numeral:
1, first substrate; 2, second substrate; 3, black matrix; 4, color blocking layer; 5, planarization layer; 6, the second common electrode layer; 61, the first conductive electrode; 62, the second conductive electrode; 7, grid metal level; 8, gate insulator; 9, active layer; 10, source-drain electrode metal level; 11, pixel electrode layer; 12, passivation layer; 13, the first common electrode layer; 14, conductive pole; 15, bonding coat.
Embodiment
Below in conjunction with Figure of description, the implementation procedure of the embodiment of the present invention is elaborated.It should be noted that same or similar label from start to finish represents same or similar element or has the element of identical or similar functions.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Embodiment mono-
Referring to Fig. 1, the embodiment of the present invention provides a kind of display panel 100, comprising:
The first substrate 1 being oppositely arranged and second substrate 2;
In first substrate 1 side relative to second substrate 2, be provided with the first common electrode layer 13;
In second substrate 2 side relative to first substrate 1, be disposed with black matrix 3, color blocking layer 4 and planarization layer 5;
On the planarization layer 5 of second substrate 2, being also provided with the second common electrode layer 6, the second common electrode layer 6 is electrically connected to the first common electrode layer 13 of first substrate 1.
In this example, by the second common electrode layer 6 is set on second substrate 2, and this second common electrode layer 6 is electrically connected to the first common electrode layer 13, effectively reduces the surface resistance of the public electrode of display panel 100.
The second common electrode layer 6 can only be arranged at the region of black matrix 3 correspondences.Referring to Fig. 3, gone out a kind of schematic top plan view of the second common electrode layer 6, the second common electrode layer 6 is only arranged at the region of black matrix 3 correspondences.In such cases, the width of the figure of the second common electrode layer 6 is advisable to be not more than the width of the figure of black matrix 3, to avoid exceeding the scope of blocking of black matrix 3.For example: the second common electrode layer 6 is within the scope of the vertical projection of black matrix 3.In the present embodiment, the figure of the second common electrode layer 6 can be blocked by black matrix 3.Preferably, the figure of the second common electrode layer 6 equates with the width of the figure of black matrix 3, and now the width of the figure of the second common electrode layer 6 is maximum, equals the width of the figure of black matrix 3.Because this second common electrode layer 6 is arranged at second substrate 2 one sides and equates with black matrix 3 width, therefore can not affect the demonstration of pixel and the transmitance of display panel.
Preferably, display panel 100 also comprises the electric conductor directly contacting with the second common electrode layer 6 with the first common electrode layer 13, and electric conductor is conductive pole 14.In the present embodiment, by conductive pole 14, the first common electrode layer 13 is connected with the second common electrode layer 6, makes the two parallel connection to reduce surface resistance.
Preferably, conductive pole 14 is the chock insulator matter of conduction.In the present embodiment, this chock insulator matter can have support and electric action simultaneously, and the chock insulator matter of conduction makes the first common electrode layer 13 be connected with the second common electrode layer 6, does not need extra technique, and effectively utilizes space.
Preferably, first substrate 1 is array base palte, and second substrate 2 is color membrane substrates.
Preferably, first substrate 1 also comprises color blocking layer and the planarization layer 5 being arranged between black matrix 3 and the second common electrode layer 6.
The material of the second common electrode layer 6 can be ITO or metal material.By electric conductivity and resistivity aspect, considered, preferred metal materials is prepared the second common electrode layer 6, and to obtain better electric conductivity and less resistivity, this resistivity is less, and the first common electrode layer 13 in parallel and the surface resistance of the second common electrode layer 6 are less.
Preferably, first substrate 1 is array base palte, and second substrate 2 is color membrane substrates.
Certainly, those skilled in the art should understand, the display panel 100 that the present embodiment provides, when its first substrate 1 is tft array substrate, first substrate 1 also comprises grid metal level 7, gate insulator 8, active layer 9, source-drain electrode metal level 10, pixel electrode layer 11 and passivation layer 12 as shown in Figure 1, thereby on first substrate 1, forms TFT components and parts; In addition, TFT in first substrate 1 shown in Fig. 1 is bottom gate type, according to thought of the present invention, TFT in first substrate 1 can be also top gate type, first common electrode layer 13 of array base palte with top gate type TFT is similar to first common electrode layer 13 of array base palte with bottom gate type TFT, the concrete structure that is only grid metal level 7, gate insulator 8, active layer 9, source-drain electrode metal level 10, pixel electrode layer 11 and passivation layer 12 changes to some extent, therefore repeats no more.
Embodiment of the present invention beneficial effect is as follows: by second common electrode layer 6 corresponding with black matrix 3 positions is set on second substrate 2, and the second common electrode layer 6 is connected with the first common electrode layer 13 on first substrate 1; The graphic width of the part that further the second common electrode layer 6 is corresponding with black matrix 3 equates with the graphic width of black matrix 3, thereby the width of the figure of this part is maximized; The second common electrode layer 6 and the first common electrode layer 13 in parallel, can effectively reduce the surface resistance of the public electrode of display panel, reduce the time delay that common signal transmits in public electrode, thereby avoid display panel to produce the phenomenons such as serious partially green, image retention.
Embodiment bis-
Referring to Fig. 2, the embodiment of the present invention provides another kind of display panel 100, comprising:
The second substrate 2 being oppositely arranged and first substrate 1;
In a relative side of first substrate 1 and second substrate 2, be provided with the first common electrode layer 13;
In second substrate 2 side relative to first substrate 1, be disposed with black matrix 3, color blocking layer 4 and planarization layer 5;
On the planarization layer 5 of second substrate 2, being also provided with the second common electrode layer 6, the second common electrode layer 6 is electrically connected to the first common electrode layer 13 of first substrate 1.
In this example, by the second common electrode layer 6 is set on second substrate 2, and this second common electrode layer 6 is electrically connected to the first common electrode layer 13, effectively reduces the surface resistance of the public electrode of display panel 100.
The second common electrode layer 6 can only be arranged at the region of black matrix 3 and bonding coat 15 correspondences.As shown in Figure 4, show the schematic top plan view of another kind of the second common electrode layer 6, this second common electrode layer 6 is arranged at the region of black matrix 3 and bonding coat 15 correspondences.In such cases, the second common electrode layer 6 comprises that the first conductive electrode 61 and the second conductive electrode 62, the first conductive electrodes 61 are within the scope of the vertical projection of black matrix 3, and the figure of the first conductive electrode 61 equates with the width of the figure of black matrix 3; Between the second conductive electrode 62 and first substrate 1 and second substrate 2, the position of bonding coat 15 is corresponding, and its width is more than or equal to the width of bonding coat 15.In the present embodiment, the width of the figure of the first conductive electrode 61 of the second common electrode layer 6 is advisable to be not more than the width of the figure of black matrix 3, to avoid exceeding the scope of blocking of black matrix 3.The graphic width of the second conductive electrode 62 is in the situation that do not affect the bonding of first substrate 1 and second substrate 2 and do not affect display panel 200 and show and arrange, so this width can arrange flexibly according to actual conditions.
Preferably, display panel also comprises the electric conductor directly contacting with the second common electrode layer 6 with the first common electrode layer 13, the electric conductor directly contacting with the first common electrode layer 13 with the first conductive electrode 61 is conductive pole 14, and the electric conductor directly contacting with the first common electrode layer 13 with the second conductive electrode 62 is the bonding coat 15 of conduction.It should be noted that, this bonding coat 15 can be the sealed plastic box of conduction, and more easy implementation is can doping metals ball in sealed plastic box, makes it to possess the performance of conduction.
In the present embodiment, in different positions, with different electric conductors, realize the connection between the first common electrode layer 13 and the second common electrode layer 6.
The material of the second common electrode layer 6 can be ITO or metal material.Preferred metal materials is prepared the second common electrode layer 6, to obtain better electric conductivity and less resistivity.
Preferably, first substrate 1 is array base palte, and second substrate 2 is color membrane substrates.
Certainly, those skilled in the art should understand, the display panel 100 that the present embodiment provides, its first substrate 1 also comprises grid metal level 7, gate insulator 8, active layer 9, source-drain electrode metal level 10, pixel electrode layer 11 and passivation layer 12 as shown in Figure 2, thereby on first substrate 1, forms TFT components and parts; In addition, TFT in first substrate 1 shown in Fig. 2 is bottom gate type, according to thought of the present invention, TFT in first substrate 1 can be also top gate type, first common electrode layer 13 of array base palte with top gate type TFT is similar to first common electrode layer 13 of array base palte with bottom gate type TFT, the concrete structure that is only grid metal level 7, gate insulator 8, active layer 9, source-drain electrode metal level 10, pixel electrode layer 11 and passivation layer 12 changes to some extent, therefore repeats no more.
Embodiment of the present invention beneficial effect is as follows: by second common electrode layer 6 corresponding with black matrix 3 positions is set on second substrate 2, and the second common electrode layer 6 is connected with the first common electrode layer 13 on first substrate 1; The graphic width of the part that further the second common electrode layer 6 is corresponding with black matrix 3 equates with the graphic width of black matrix 3, thereby the width of the figure of this part is maximized; The second common electrode layer 6 and the first common electrode layer 13 in parallel, can effectively reduce the surface resistance of the public electrode of display panel, reduce the time delay that common signal transmits in public electrode, thereby avoid display panel to produce the phenomenons such as serious partially green, image retention.
Embodiment tri-
The invention process row provide a kind of display device, comprise the display panel 100 that embodiment mono-or embodiment bis-provide.
Embodiment of the present invention beneficial effect is as follows: by second common electrode layer corresponding with black matrix position is set on second substrate, and the second common electrode layer is connected with the first common electrode layer on first substrate; The graphic width of the part that further the second common electrode layer is corresponding with black matrix equates with the graphic width of black matrix, thereby the width of the figure of this part is maximized; In parallel the second common electrode layer and the first common electrode layer, can effectively reduce the surface resistance of the public electrode of display panel, reduces the time delay that common signal transmits in public electrode, thereby avoid display panel to produce the phenomenons such as serious partially green, image retention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a display panel, is characterized in that, comprising:
The first substrate being oppositely arranged and second substrate;
In a described first substrate side relative with described second substrate, be provided with the first common electrode layer;
In a described second substrate side relative with described first substrate, be disposed with black matrix and the second common electrode layer;
Described the second common electrode layer is electrically connected to described the first common electrode layer.
2. display panel as claimed in claim 1, is characterized in that, described the second common electrode layer is within the scope of the vertical projection of described black matrix, and the width of the figure of described the second common electrode layer and the figure of described black matrix equates.
3. display panel as claimed in claim 2, is characterized in that, described display panel also comprises the electric conductor directly contacting with described the second common electrode layer with described the first common electrode layer, and described electric conductor is conductive pole.
4. display panel as claimed in claim 1, is characterized in that, described the second common electrode layer comprises the first conductive electrode and the second conductive electrode;
Described the first conductive electrode is within the scope of the vertical projection of described black matrix, and the width of the figure of described the first conductive electrode and the figure of described black matrix equates;
Between described the second conductive electrode and described first substrate and described second substrate, the position of bonding coat is corresponding, and its width is more than or equal to the width of described bonding coat.
5. display panel as claimed in claim 4, it is characterized in that, described display panel also comprises the electric conductor directly contacting with described the second common electrode layer with described the first common electrode layer, the described electric conductor directly contacting with described the first common electrode layer with described the first conductive electrode is conductive pole, and the described electric conductor directly contacting with described the first common electrode layer with described the second conductive electrode is the described bonding coat of conduction.
6. the display panel as described in claim 3 or 5, is characterized in that, described conductive pole is the chock insulator matter of conduction.
7. the display panel as described in claim 1 to 5 any one, is characterized in that, described first substrate is array base palte, and described second substrate is color membrane substrates.
8. display panel as claimed in claim 7, is characterized in that, described second substrate also comprises color blocking layer and the planarization layer being arranged between described black matrix and described the second common electrode layer.
9. the display panel as described in claim 1 to 5 any one, is characterized in that, the material of described the second common electrode layer is metal material.
10. a display device, is characterized in that, comprises the display panel as described in claim 1 to 9 any one.
Priority Applications (1)
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|---|---|---|---|
| CN201410328845.3A CN104199220A (en) | 2014-07-10 | 2014-07-10 | Display panel and display device |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201410328845.3A CN104199220A (en) | 2014-07-10 | 2014-07-10 | Display panel and display device |
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| CN104199220A true CN104199220A (en) | 2014-12-10 |
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| CN201410328845.3A Pending CN104199220A (en) | 2014-07-10 | 2014-07-10 | Display panel and display device |
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| CN109633974A (en) * | 2019-02-18 | 2019-04-16 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and preparation method thereof |
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Application publication date: 20141210 |
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