CN107422552B - Display substrate and display device - Google Patents
Display substrate and display device Download PDFInfo
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- CN107422552B CN107422552B CN201710701283.6A CN201710701283A CN107422552B CN 107422552 B CN107422552 B CN 107422552B CN 201710701283 A CN201710701283 A CN 201710701283A CN 107422552 B CN107422552 B CN 107422552B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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Abstract
The invention discloses a display substrate and a display device. According to an embodiment of the present invention, the display substrate includes: a substrate on which a display area and a connection area are provided, the connection area being disposed around the display area; the common electrode is arranged in the display area and provided with a connecting part, and the connecting part extends to the connecting area along a first direction; the public electrode wires are arranged in the connection area and are arranged along a second direction and on different layers from the public electrodes, and the at least two public electrode wires are arranged in parallel, wherein the second direction is perpendicular to the first direction, and the connection portion spans the at least two public electrode wires and is bridged with the at least one public electrode wire through a via hole. Therefore, the diffusion conditions of the PI liquid in the display area and the connection area are similar, the PI liquid in the connection area is uniformly diffused, the PI liquid is prevented from being accumulated at the edge of the display area, and the quality of a display picture is improved. And the uniformity of the voltage of the connection portion can be ensured.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a display substrate and a display device.
Background
At present, the industry of liquid crystal displays is mature, and the liquid crystal displays are widely applied to various application scenes to realize display and human-computer interaction functions. In the LCD, in order to provide a pretilt angle to liquid crystal molecules, a uniform PI (polyimide) film is required to be disposed on a CF substrate as well as a TFT substrate so as to provide a pretilt angle for liquid crystal rotation after rubbing. Therefore, the liquid crystal is arranged according to a certain pretilt angle, so that the direction of light passing through is controlled, and the aim of displaying is fulfilled by proper driving voltage.
However, the display substrate and the display device coated with the PI film still need to be improved.
Disclosure of Invention
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
the inventor finds that the problems of nonuniform PI liquid diffusion in a non-display area, thick PI accumulation at the edge of a display area and the like generally exist in the PI film coating process of the current TFT substrate. The inventor of the present invention has made extensive studies and experiments to find that, in order to prevent the defects caused by the voltage unevenness on the in-plane common electrode (Vcom), it is necessary to provide a large common electrode metal layer in the same layer as and parallel to the Gate line (Gate line) in the non-display region (connection region), and then lap-joint the Vcom and the common electrode metal through the via hole to achieve the in-plane voltage uniformity of Vcom. According to the via hole design, in the PI coating process, due to the fact that the number of the via holes is large, the size of the via holes is large, PI liquid in the connecting area is diffused unevenly, horizontal black lines are generated, thick PI liquid is accumulated on the edge of the display area, and the quality of a display picture is seriously affected. Meanwhile, the via hole design can cause that the Vcom resistance is large, the voltage is uneven, the in-plane load is large, and the in-plane afterimage level can be influenced in serious cases.
The present invention aims to alleviate or solve at least to some extent at least one of the above mentioned problems.
In one aspect of the present invention, a display substrate is provided. According to an embodiment of the present invention, the display substrate includes: the display device comprises a substrate, a display area and a connecting area, wherein the display area and the connecting area are arranged on the substrate and surround the display area; a common electrode disposed in the display region, the common electrode having a connection part extending to the connection region along a first direction; the public electrode wires are arranged in the connecting area, are arranged along a second direction and are different from the public electrodes in layer, and the public electrode wires are arranged in parallel; the second direction is perpendicular to the first direction, and the connecting part spans at least two common electrode wires and is in bridge connection with at least one common electrode wire through a via hole. Therefore, the diffusion conditions of the PI liquid in the display area and the connection area are similar, the PI liquid in the connection area is uniformly diffused, the PI liquid is prevented from being accumulated at the edge of the display area, and the quality of a display picture is improved. And the uniformity of the voltage of the connection portion can be ensured.
According to an embodiment of the invention, the connection region further comprises: and the pixel electrode block is arranged between two adjacent public electrode wires. Therefore, the structures of the connecting area and the display area are more symmetrical, and the diffusion conditions of the PI liquid in the connecting area and the display area are similar.
According to the embodiment of the invention, the liquid crystal display device comprises a plurality of connecting parts and a plurality of pixel electrode blocks, wherein the connecting parts and the pixel electrode blocks are arranged in a one-to-one correspondence manner. Therefore, the diffusion uniformity of PI liquid in the connection region can be further improved, and the PI liquid is prevented from accumulating at the edge of the display region.
According to the embodiment of the invention, the connecting part is provided with the hollowed-out pattern. Therefore, the structures of the connecting area and the display area are more symmetrical, and the diffusion conditions of the PI liquid in the connecting area and the display area are similar.
According to the embodiment of the invention, the display device comprises two common electrode wires, the two common electrode wires are arranged in parallel along the second direction, the width of the common electrode wire close to the display area is smaller than that of the common electrode wire far away from the display area, and the connecting part is in bridging connection with the common electrode wire far away from the display area through a via hole. Therefore, the diffusion uniformity of PI liquid in the connection region can be further improved, and the PI liquid is prevented from accumulating at the edge of the display region. And the uniformity of the voltage of the connection portion can be ensured.
According to the embodiment of the invention, the two common electrode lines are connected through a plurality of electrode lines arranged along the first direction, and the electrode lines and the common electrode lines are arranged on the same layer. Therefore, the diffusion uniformity of PI liquid in the connection region can be further improved, and the PI liquid is prevented from accumulating at the edge of the display region.
According to an embodiment of the invention, the connection region further comprises: and the common electrode line is arranged on one side of the grid line far away from the display area. Therefore, the diffusion uniformity of PI liquid in the connection region can be further improved, and the PI liquid is prevented from accumulating at the edge of the display region.
According to the embodiment of the invention, the gate lines and the common electrode lines are arranged in the same layer. Therefore, the common electrode line and the grid line can be prepared in the same layer.
According to an embodiment of the invention, the connection region comprises: a gate line disposed at the connection region and extending in the second direction; the two common electrode wires are arranged on one side of the grid line far away from the display area, and the width of the common electrode wire close to the display area is smaller than that of the common electrode wire far away from the display area; the connecting parts are arranged at intervals and are in bridging connection with the common electrode wires far away from the display area through via holes; a plurality of pixel electrode blocks disposed between the two common electrode lines at positions corresponding to the connection portions, the pixel electrode blocks being disposed between the connection portions and the common electrode lines in a direction perpendicular to the substrate; a plurality of gate line connection lines disposed at gaps of the plurality of connection portions along the first direction and connected to the gate lines; the electrode wires are connected with the two public electrode wires along the first direction, the electrode wires and the public electrode wires are arranged in the same layer of the same material, and the electrode wires are arranged on one side, close to the grid line connecting wires, of the connecting portion in the projection area of the substrate. Therefore, the diffusion conditions of the PI liquid in the display area and the connection area are similar, the PI liquid in the connection area is uniformly diffused, the PI liquid is prevented from being accumulated at the edge of the display area, and the quality of a display picture is improved. And the uniformity of the voltage of the connection portion can be ensured.
In another aspect of the present invention, a display device is provided. According to an embodiment of the present invention, the display device includes the display substrate described above. Therefore, the display device has all the features and advantages of the display substrate described above, and thus, the description thereof is omitted. In the process of PI coating of the display device, the diffusion conditions of PI liquid in the display area and the connection area are similar, the PI liquid in the connection area is uniformly diffused, the PI liquid is prevented from being accumulated at the edge of the display area, and the quality of a display picture is improved. And the uniformity of the voltage of the connection portion can be ensured.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a structure of a connection region of a conventional display panel;
FIG. 3 is a schematic diagram illustrating a partial structure of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a partial structure of a conventional display panel; and
fig. 6 shows a schematic structural diagram of a display device according to an embodiment of the present invention.
Description of reference numerals:
100: a substrate; 110: a display area; 120: a connecting region; 200: a common electrode; 210: a connecting portion; 300: a common electrode line; 310: a common electrode metal; 10: a via hole; 20: hollowing out the pattern; 400: a pixel electrode block; 500: an electrode wire; 600: a gate electrode; 700: a gate line connection line; 800: a drain metal; 900: a pixel electrode; 1000: a display device.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In one aspect of the present invention, a display substrate is provided. According to an embodiment of the present invention, referring to fig. 1, the display substrate includes: a substrate 100 and a common electrode 200. According to an embodiment of the present invention, a display region 110 and a connection region 120 are disposed on the substrate 100. According to an embodiment of the present invention, the connection region 120 is disposed around the display region 110. According to an embodiment of the present invention, the common electrode 200 is disposed in the display region 110, the common electrode 200 has a connection portion 210, and the connection portion 210 extends to the connection region 120 along a first direction (a direction shown as X in the figure). According to an embodiment of the invention, the second direction (the direction indicated as Y in the figure) is perpendicular to the first direction. According to the embodiment of the present invention, at least two common electrode lines 300 (a common electrode line 300A and a common electrode line 300B shown in the figure), the common electrode lines 300 are disposed at the connection region 120 and extend in the second direction. According to an embodiment of the present invention, the common electrode line 300 is disposed in the second direction and is a different layer from the common electrode 200. According to an embodiment of the present invention, the connection region 120 has at least two common electrode lines 300, and the common electrode lines 300 are disposed parallel to each other. According to an embodiment of the present invention, the connection part 210 spans at least two common electrode lines 300. According to an embodiment of the present invention, the connection part 210 is bridged with at least one common electrode line 300 by a via 10. Therefore, the diffusion conditions of the PI liquid in the display area and the connection area are similar, the PI liquid in the connection area is uniformly diffused, the PI liquid is prevented from being accumulated at the edge of the display area, and the quality of a display picture is improved. And the uniformity of the voltage of the connection portion can be ensured.
As described above, in order to ensure the uniformity of the voltage on the common electrode in the current display substrate, referring to fig. 2 and 3, a large piece of common electrode metal 310 is generally disposed on the connection region and connected to the connection portion 210 of the common electrode extending to the connection region through the via 10, so as to maintain the uniformity of the voltage on the common electrode (not fully shown in the figure). In addition, at the connection region, structures such as the gate line 600 and the gate line connection line 700 are also provided. As will be familiar to those skilled in the art, in the display area, since the common electrode metal 310 shown in fig. 2 is not provided and more vias 10 need to be provided, the electrode arrangement conditions of the display area and the connection area are extremely poor in symmetry, and therefore, the diffusion condition of the PI liquid in the display area is not similar to the diffusion condition of the PI liquid in the connection area during the PI liquid coating and diffusion processes, so that the PI liquid in the connection area is diffused very unevenly, horizontal black lines are generated, and thicker PI is accumulated on the edge of the display area, which seriously affects the quality of the display screen. According to the embodiment of the present invention, by using a plurality of common electrode lines 300 disposed in parallel, instead of a large piece of common electrode metal (310 shown in fig. 2), an electrode structure similar to that of the display region may be formed at the connection region on the one hand: the connection portion 210 spans at least two parallel and spaced common electrode lines 300, and thus the common electrode lines 300A, 300B, and the connection portion 210 disposed therebetween, may constitute an electrode structure similar to that at a single sub-pixel of the display region. Therefore, the symmetry of PI liquid diffusion in the connection region and the display region can be greatly improved. On the other hand, according to the structure of the embodiment of the invention, the number of the via holes 10 can be greatly reduced, thereby being beneficial to further relieving poor display caused by uneven diffusion of the PI liquid.
The detailed structure of the display substrate is analyzed in detail below according to an embodiment of the present invention:
according to the embodiment of the present invention, the specific features, structures, materials or characteristics of the common electrode 200, the connection portion 210 and the common electrode line 300 are not particularly limited, and only the use performance of the display substrate needs to be satisfied.
According to an embodiment of the present invention, referring to fig. 1, the display area 110 and the connection area 120 are provided with a connection portion 210 along the first direction. According to the embodiment of the substrate of the present invention, the common electrode line 300A and the common electrode line 300B may be disposed at a lower layer of the connection portion 210, the common electrode line 300A and the common electrode line 300B are disposed in parallel along the second direction, and the common electrode line 300A and the common electrode line 300B are spaced apart from each other by a certain distance. According to an embodiment of the present invention, the connection portion 210 may span the common electrode line 300A and the common electrode line 300B, and the connection portion 210 may bridge the common electrode line 300B through the via 10. According to the embodiment of the present invention, the specific manner in which the connection part 210 and the common electrode line 300 are bridged by the via hole 10 is not particularly limited, and the connection of the connection part 210 and the common electrode line 300 is only required to be satisfied. According to the embodiment of the present invention, the connection portion 210 and the common electrode line 300B need only be bridged by fewer vias 10, for example, by 1 or 2 vias.
According to an embodiment of the present invention, referring to fig. 4 and 5, the connection region 120 further includes a pixel electrode block 400 (such as the pixel electrode block 400 shown in fig. 5). According to the embodiment of the present invention, the pixel electrode block 400 is disposed between two adjacent common electrode lines 300A and 300B. According to an embodiment of the present invention, the pixel electrode block 400 may have the same characteristics, structure, material, or characteristics as the pixel electrode block in the display area 110. Therefore, the connection region 120 and the display region 110 are more symmetrical in structure, and the diffusion of the PI liquid in the connection region and the display region is similar. According to an embodiment of the present invention, referring to fig. 5, the connection portion 210 has a hollow pattern 20 thereon. According to the embodiment of the invention, the hollow pattern 20 may have the same structure or characteristics as the hollow pattern in the display area 110. Therefore, the connection region 120 and the display region 110 are more symmetrical in structure, and the diffusion of the PI liquid in the connection region and the display region is similar. According to the embodiment of the present invention, the connection portion 210 extends from the display area to the connection region 120 along the first direction, the connection portion 210 is disposed on both the display area 110 and the connection region 120 along the first direction, and only a part of the connection portion 210 in the connection region 120 is shown in fig. 2.
According to the embodiment of the present invention, the original common electrode metal 310 in a large strip-shaped metal structure is changed into two parallel common electrode lines 300A and 3000B. In the present invention, in the display region 110, the pixel electrode 900 is provided at the lower layer of the common electrode 200, and in the connection region 120, the pixel electrode block 400 is provided at the lower layer of the connection portion 210, between the common electrode line 300A and the common electrode line 3000B, and thus, referring to fig. 4, the structure in the connection region 120 is similar to that of the display region 110.
According to the embodiment of the invention, in order to further make the structures of the connection region 120 and the display region 110 tend to be symmetrical, the hollow-out pattern 20 (refer to fig. 5) is further formed in the connection portion 210 in the invention. It should be noted that, as shown in fig. 5, which is a partial structural diagram of the connection region 120, the connection portion 210 needs to extend upward into the display region 110 (not shown in fig. 5). Meanwhile, the connection region 120 may also have other structures to further improve the consistency of the PI liquid diffusion condition in the connection region 120 with the PI liquid diffusion condition in the display region: for example, the gate line 600B and the gate line connection line 700 may be further included. Thus, the structures of the gate line 600A and the gate line connection line 700 in the connection region 120 and the display region 110 may be made similar. In summary, the connection region 120 of the display substrate of the present invention has a similar overall structure to the display region 110, so that the PI liquid spreads in the display region similarly to the connection region, the PI liquid spreads uniformly, the PI liquid is prevented from accumulating at the edge of the display region, and the quality of the display screen is improved. In addition, in the design scheme of the invention, the connection between the connection part 210 and the common electrode line 300B only needs to be bridged and connected through fewer (1-2) through holes 10, so that the phenomenon of uneven diffusion of the PI solution is further reduced, and the voltage uniformity of the connection part 210 and the in-plane residual image level can be ensured through fewer through holes 10 bridged and connected.
According to an embodiment of the present invention, referring to fig. 4 and 5, the display substrate includes a plurality of connection parts 210 and a plurality of pixel electrode blocks 400. According to the embodiment of the invention, the plurality of connection parts 210 and the plurality of pixel electrode blocks 400 are arranged in one-to-one correspondence. Therefore, the diffusion uniformity of PI liquid in the connection region can be further improved, and the PI liquid is prevented from accumulating at the edge of the display region. According to the embodiment of the invention, the specific number of the plurality of connecting portions 210 and the plurality of pixel electrode blocks 400 is not particularly limited, and only the operational performance of the display substrate is satisfied.
According to an embodiment of the present invention, the display substrate includes two common electrode lines 300 (300A and 300B as shown in fig. 5). According to the embodiment of the present invention, the two common electrode lines are arranged in parallel along the second direction, and the width of the common electrode line 300A close to the display area (D shown in fig. 1) is smaller than the width of the common electrode line 300B far from the display area (H shown in fig. 1). According to the embodiment of the present invention, the connection part 210 is bridged with the common electrode line 300B far from the display area 110 through the via 10. Therefore, the diffusion uniformity of PI liquid in the connection region can be further improved, and the PI liquid is prevented from accumulating at the edge of the display region. And the uniformity of the voltage of the connection portion can be ensured.
According to an embodiment of the present invention, referring to fig. 5, two common electrode lines 300 may be connected to each other by a plurality of electrode lines 500 arranged along a first direction, and the electrode lines 500 are arranged on the same layer as the common electrode lines 300. Therefore, the diffusion uniformity of PI liquid in the connection region can be further improved, and the PI liquid is prevented from accumulating at the edge of the display region. According to the embodiment of the present invention, the specific features, structures, materials or characteristics of the electrode line 500 are not particularly limited, and only the connection of the common electrode line 300A and the common electrode line 300B is required. According to an embodiment of the present invention, the connection region 120 further includes: and a gate line 600 disposed along the second direction, and a common electrode line 300 is disposed at a side of the gate line 600 away from the display region 110. Therefore, a structure similar to the pixel electrodes and the common electrodes corresponding to the plurality of sub-pixels in the display area can be formed in the connection area, and further, the diffusion uniformity of PI liquid in the connection area can be further improved, and the accumulation of the PI liquid at the edge of the display area can be prevented. According to the embodiment of the present invention, the specific characteristics, structure, material or characteristics of the gate line 600 are not particularly limited, and only the performance of the display substrate needs to be satisfied. According to an embodiment of the present invention, the gate lines 600 and the common electrode lines 300 are disposed at the same layer. Thus, the common electrode line 300 and the gate line 600 may be fabricated in the same layer.
According to a specific embodiment of the present invention, referring to fig. 5, the connection region 120 may specifically include the following structure: a gate line 600, two common electrode lines 300 (300A and 300B as shown in fig. 5), a plurality of connection parts 210 spaced apart from each other, a plurality of pixel electrode blocks 400, a plurality of gate line connection lines 700, and a plurality of electrode lines 500. According to an embodiment of the present invention, the gate line 600 is disposed at the connection region 120 and extends in the second direction. According to the embodiment of the present invention, two common electrode lines 300 are disposed on one side of the gate line 600 away from the display area 110, and the width of the common electrode line 300A close to the display area 110 (D shown in fig. 1) is smaller than the width of the common electrode line 300B away from the display area 110 (H shown in fig. 1). According to the embodiment of the present invention, the connection part 210 is bridged with the common electrode line 300B far from the display area 110 through the via 10. According to an embodiment of the present invention, the pixel electrode block 400 is disposed between the two common electrode lines 300 at a position corresponding to the connection portion 210, and the pixel electrode block 400 is disposed between the connection portion 210 and the common electrode lines 300 in a direction perpendicular to the substrate 100. According to an embodiment of the present invention, the gate line connection line 700 is disposed at a gap of the plurality of connection parts 210 in the first direction and connected to the gate line 600. According to the embodiment of the present invention, the electrode line 500 connects the two common electrode lines 300 along the first direction, the electrode line 500 and the common electrode line 300 are disposed in the same layer of the same material, and the electrode line 500 is disposed on one side of the connection portion 210 in the projection region of the substrate 100, which is close to the gate line connection line 700. Therefore, the diffusion conditions of the PI liquid in the display area and the connection area are similar, the PI liquid in the connection area is uniformly diffused, the PI liquid is prevented from being accumulated at the edge of the display area, and the quality of a display picture is improved. And the uniformity of the voltage of the connection portion can be ensured. According to an embodiment of the present invention, the connection region 120 further comprises a drain metal 800. According to an embodiment of the present invention, the drain metal 800 is connected to the gate line 600 and extends to the display region 110 in a direction opposite to the first direction. According to the embodiments of the present invention, the specific features, structures, materials or characteristics of the gate line connection line 700 and the drain metal 800 are not particularly limited, and only the performance of the display substrate needs to be satisfied.
In another aspect of the invention, referring to fig. 6, the invention provides a display device 1000. According to an embodiment of the present invention, the display device 1000 includes the display substrate described above. Accordingly, the display device 1000 has all the features and advantages of the display substrate described above, and thus, the description thereof is omitted. In the process of PI coating, the PI liquid is diffused in the display area and the connection area in a similar manner, the PI liquid is uniformly diffused in the connection area, accumulation of the PI liquid at the edge of the display area is prevented, and the quality of a display picture is improved. And the uniformity of the voltage of the connection portion can be ensured.
In the description of the present invention, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description herein, references to the description of "one embodiment," "another embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. In addition, it should be noted that the terms "first" and "second" in this specification are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A display substrate, comprising:
the display device comprises a substrate, a display area and a connecting area, wherein the display area and the connecting area are arranged on the substrate and surround the display area;
a common electrode disposed in the display region, the common electrode having a connection part extending to the connection region along a first direction;
the public electrode wires are arranged in the connecting area, are arranged along a second direction and are different from the public electrodes in layer, and the public electrode wires are arranged in parallel;
wherein the second direction is perpendicular to the first direction, the connecting portion spans at least two of the common electrode lines and is bridged with at least one of the common electrode lines by a via hole, and the connecting region further includes:
and the pixel electrode block is arranged between two adjacent public electrode wires.
2. The display substrate according to claim 1, comprising a plurality of the connection portions and a plurality of the pixel electrode blocks, wherein the plurality of connection portions and the plurality of pixel electrode blocks are arranged in a one-to-one correspondence.
3. The display substrate of claim 1, wherein the connecting portion has a hollow pattern thereon.
4. The display substrate according to claim 1, wherein the display substrate comprises two common electrode lines, the two common electrode lines are arranged in parallel along the second direction, a width of the common electrode line close to the display area is smaller than a width of the common electrode line far away from the display area, and the connecting portion is bridged with the common electrode line far away from the display area through a via hole.
5. The display substrate according to claim 4, wherein two of the common electrode lines are connected to each other by a plurality of electrode lines arranged along the first direction, and the electrode lines and the common electrode lines are arranged on the same layer.
6. The display substrate of claim 1, wherein the connection region further comprises: and the common electrode line is arranged on one side of the grid line far away from the display area.
7. The display substrate according to claim 6, wherein the gate lines and the common electrode lines are disposed in the same layer.
8. The display substrate according to claim 1, wherein the connection region comprises:
a gate line disposed at the connection region and extending in the second direction;
the two common electrode wires are arranged on one side of the grid line far away from the display area, and the width of the common electrode wire close to the display area is smaller than that of the common electrode wire far away from the display area;
the connecting parts are arranged at intervals and are in bridging connection with the common electrode wires far away from the display area through via holes;
a plurality of pixel electrode blocks disposed between the two common electrode lines at positions corresponding to the connection portions, the pixel electrode blocks being disposed between the connection portions and the common electrode lines in a direction perpendicular to the substrate;
a plurality of gate line connection lines disposed at gaps of the plurality of connection portions along the first direction and connected to the gate lines;
the electrode wires are connected with the two public electrode wires along the first direction, the electrode wires and the public electrode wires are arranged in the same layer of the same material, and the electrode wires are arranged on one side, close to the grid line connecting wires, of the connecting portion in the projection area of the substrate.
9. A display device comprising the display substrate according to any one of claims 1 to 8.
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| CN201710701283.6A CN107422552B (en) | 2017-08-16 | 2017-08-16 | Display substrate and display device |
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| CN107422552B true CN107422552B (en) | 2020-03-27 |
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| CN109212845B (en) * | 2018-10-25 | 2021-09-17 | 合肥鑫晟光电科技有限公司 | Display substrate, display device and preparation method of display substrate |
| CN109375431A (en) * | 2018-10-26 | 2019-02-22 | 深圳市华星光电技术有限公司 | A kind of display panel and display device |
| MX2022002402A (en) * | 2019-08-29 | 2022-03-17 | Arcelormittal | Edge build-up measurement. |
| CN112259561A (en) * | 2020-10-28 | 2021-01-22 | 武汉华星光电技术有限公司 | Array substrate and display panel |
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| KR20050104867A (en) * | 2004-04-30 | 2005-11-03 | 엘지.필립스 엘시디 주식회사 | Common electrode structure of liquid crystal display |
| JP2006292846A (en) * | 2005-04-06 | 2006-10-26 | Sharp Corp | Liquid crystal panel and method for manufacturing the same |
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| JP2006292846A (en) * | 2005-04-06 | 2006-10-26 | Sharp Corp | Liquid crystal panel and method for manufacturing the same |
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