CN107369692B - Display panel and display device - Google Patents
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- CN107369692B CN107369692B CN201710434230.2A CN201710434230A CN107369692B CN 107369692 B CN107369692 B CN 107369692B CN 201710434230 A CN201710434230 A CN 201710434230A CN 107369692 B CN107369692 B CN 107369692B
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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Abstract
The application discloses display panel and display device relates to and shows technical field, and display panel includes: a first substrate including a display area and a non-display area surrounding the display area; the electric connection part is arranged on the first substrate and is positioned in the non-display area, and the electric connection part comprises a first conductive gasket group and second conductive gasket groups positioned on two sides of the first conductive gasket group; the first conductive gasket group comprises a plurality of first conductive gaskets, the second conductive gasket group comprises a plurality of second conductive gaskets, the length of each second conductive gasket is smaller than that of the first conductive gasket, and the orthographic projection area of the second conductive gasket on the plane of the first substrate is equal to that of the first conductive gasket on the plane of the first substrate. So, be favorable to reducing display panel and display device's frame width, realize display device's narrow frame design, improve the screen and account for the ratio, still be favorable to realizing that first electrically conductive liner and second electrically conductive liner bind the homogeneity of effect and the homogeneity of electrically conductive effect.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
As the application of the panel display screen becomes more and more extensive, the wide screen technology becomes an important technical item, and meanwhile, the technology of the narrow lower frame of the display panel becomes more and more important. Advanced electronic products, especially portable electronic products, are increasingly tending to be small in size. COF (chip on flex) technology is an important technology for realizing the small size of electronic products. The COF technology is a technology in which a driving chip IC is designed in a flexible material, and then the flexible material is folded to the back of a display panel, thereby achieving a small size of the entire display device.
In order to bind the flexible circuit board to the display panel, an electrical connection portion is usually required to be designed on the display panel, the electrical connection portion is usually designed in the non-display area and is electrically connected with a signal lead on the display panel, and the flexible circuit board is bound with the display panel after the flexible circuit board is electrically connected with the electrical connection portion on the display panel. Fig. 1 is a schematic structural diagram illustrating an electrical connection portion of a display panel and a signal lead in the prior art. As shown in fig. 1, the electrical connection portion on the display panel includes a plurality of conductive pads 300, and the length of each conductive pad 300 is the same for connecting the signal traces 400. In the electrical connection part of the display panel, the signal traces connected with the conductive pads located in the middle area have a compressed space, but the signal traces connected with the conductive pads located on the left and right sides cannot be further compressed. The display device is limited by insufficient space of signal wiring connected with the left and right conductive pads, so that the frame of the display device cannot be further compressed, and the narrow frame design is difficult to realize.
Disclosure of Invention
In view of this, the present application provides a display panel and a display device, which are beneficial to reducing the frame width of the display device, realizing the narrow frame design of the display device, improving the screen occupation ratio, and also beneficial to realizing the uniformity of the binding effect of the first conductive pad and the second conductive pad and the uniformity of the conductive effect.
In order to solve the technical problem, the following technical scheme is adopted:
in a first aspect, the present application provides a display panel, comprising:
a first substrate including a display area and a non-display area surrounding the display area;
the electric connection part is arranged on the first substrate and is positioned in the non-display area, and the electric connection part comprises a first conductive pad group and second conductive pad groups positioned on two sides of the first conductive pad group; the first conductive gasket group comprises a plurality of first conductive gaskets, the second conductive gasket group comprises a plurality of second conductive gaskets, the length of each second conductive gasket is smaller than that of each first conductive gasket, and the area of the orthographic projection of each second conductive gasket on the plane of the first substrate is equal to that of each first conductive gasket on the plane of the first substrate.
Optionally, wherein:
the first conductive pads are arranged side by side, and the second conductive pads are arranged side by side.
Optionally, wherein:
the lengths of each of the first conductive pads in the first conductive pad group are the same.
Optionally, wherein:
the first guideThe length of the electric pad is D1, D is more than or equal to 700um1≤1100um。
Optionally, wherein:
any two second conductive pads in the second conductive pad group, the length of the second conductive pad close to the first conductive pad group is larger than the length of the second conductive pad far away from the first conductive pad group.
Optionally, wherein:
in the second conductive pad group, the length of a second conductive pad far away from the first conductive pad group is D2，D1/2≤D2≤2D1/3。
Optionally, wherein:
any two second conductive pads in the second conductive pad group, the length of the second conductive pad close to the first conductive pad group is smaller than the length of the second conductive pad far away from the first conductive pad group.
Optionally, wherein:
in the second conductive pad group, the length of the second conductive pad adjacent to the first conductive pad group is D3，D1/2≤D3≤2D1/3。
Optionally, wherein:
the display panel further includes gate lines extending in a first direction and arranged in a second direction, and data signal lines extending in the second direction and arranged in the first direction, the first direction crossing the second direction;
the electrical connection portion is located in an extending direction of the data signal line, and the length is an extending distance of the first conductive pad or the second conductive pad along the second direction.
Optionally, wherein:
the display panel further comprises a flexible circuit board, and the flexible circuit board is bonded with the electric connection part; and the flexible circuit board is electrically connected with one or two of the gate line and the data signal line through the electric connection part.
Optionally, wherein:
the display panel further comprises an integrated chip, and the integrated chip is integrated on the flexible circuit board.
In a second aspect, the present application further provides a display device including the display panel of the present application.
Compared with the prior art, this application display panel and display device, reached following effect:
in the display panel and the display device provided by the invention, the electric connection part arranged on the first substrate comprises the first conductive pad group and the second conductive pad groups positioned at two sides of the first conductive pad group, and the length of each second conductive pad in the second conductive pad group is smaller than that of the first conductive pad in the first conductive pad group, when the conductive pad group adopting the design is used for connecting the signal lead, because the length of each second conductive pad in the second conductive pad groups positioned at two sides is smaller than that of the first conductive pad in the first conductive pad group, a certain compression space is reserved for the signal lead connected with each second conductive pad in the second conductive pad group, compared with the prior art, the signal routing connected with the first conductive pad group and the second conductive pad group in the design has a certain compression space, the length of the signal lead connected with the first conductive pad group and the second conductive pad group can be designed to be shorter, and the space occupied by the frame of the display panel is reduced, so that the narrow frame design of the display panel is facilitated, the screen occupation ratio is further facilitated to be improved, and the requirement of a user on the narrow frame design is met. In addition, although the length of each second conductive pad is less than the length of the first conductive pad in the present application, the area of the orthographic projection of each second conductive pad on the plane of the first substrate is designed to be equal to the area of the orthographic projection of the first conductive pad on the plane of the first substrate, so that the resistance of the first conductive pad is the same as that of the second conductive pad, when the electric connection part in the present application is bound with the flexible circuit board, the binding effect and the conductive effect of the first conductive pad and the second conductive pad are consistent, and the uniformity of the binding effect and the uniformity of the conductive effect of the first conductive pad and the second conductive pad are favorably realized. In addition, this application designs each second electrically conductive liner equal to first electrically conductive liner in the planar orthographic projection's of first base plate area in the orthographic projection of first base plate place, when tying up electric connection portion and flexible circuit board in this application, can also guarantee that each first electrically conductive liner and second electrically conductive liner are the same with each electric connection terminal's on the flexible circuit board area of contact, the problem that bad contact appears or not bind between electric connection portion and the flexible circuit board has been avoided to the at utmost, consequently, be favorable to guaranteeing the reliability of binding between electric connection portion and the flexible circuit board in this application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a prior art electrical connection portion of a display panel to signal leads;
FIG. 2 is a first top view of a display panel provided herein;
FIG. 3 is a schematic view of a first electrical connection provided herein;
FIG. 4 is a second structural schematic view of the electrical connection provided herein;
FIG. 5 is a schematic view of the electrical connection portion shown in FIG. 4 connected to a signal lead;
FIG. 6 is a schematic view of the electrical connection portion shown in FIG. 5 connected to a signal lead;
FIG. 7 is a second top view of the display panel provided by the present application;
FIG. 8 is a third top view of the display panel provided by the present application;
FIG. 9 is a fourth top view of the display panel provided by the present application;
fig. 10 is a schematic structural diagram of a display device provided in the present application.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
Fig. 2 is a first top view of the display panel provided by the present application, fig. 3 is a first structural diagram of the electrical connection portion provided by the present application, and fig. 4 is a second structural diagram of the electrical connection portion provided by the present application. With reference to fig. 2 to 4, the present application provides a display panel 100, including:
a first substrate 10 including a display region 11 and a non-display region 12 surrounding the display region 11;
an electrical connection portion 20 disposed on the first substrate 10, the electrical connection portion 20 being located in the non-display region 12, the electrical connection portion 20 including a first conductive pad group 21 and a second conductive pad group 22 located on both sides of the first conductive pad group 21; the first conductive pad group 21 includes a plurality of first conductive pads 211, the second conductive pad group 22 includes a plurality of second conductive pads 221, the length of each second conductive pad 221 is smaller than the length of the first conductive pad 211, and the area of the orthographic projection of the second conductive pad 221 on the plane of the first substrate 10 is equal to the area of the orthographic projection of the first conductive pad 211 on the plane of the first substrate 10.
Specifically, referring to fig. 3 and 4, compared to the prior art in which the lengths of the connection pins shown in fig. 1 are the same, as can be seen from the embodiments shown in fig. 3 and 4, in the present application, the lengths of the second conductive pads 221 in the second conductive pad groups 22 located on both sides of the first conductive pad group 21 are smaller than the length of the first conductive pad 211 in the first conductive pad group 21, when the signal lead is connected by using the conductive pad groups of this design, referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of the electrical connection portion shown in fig. 4 to connect the signal lead, fig. 6 is a schematic structural diagram of the electrical connection portion shown in fig. 5 to connect the signal lead, since the lengths of the second conductive pads 221 in the second conductive pad groups 22 located on both sides are smaller than the length of the first conductive pad 211 in the first conductive pad group 21, a certain compression space is left for the signal lead 50 connected to the second conductive pads 221 in the second conductive pad groups 22, therefore, compared with the prior art, the signal lead 50 connected with the first conductive pad group 21 and the second conductive pad group 22 in the design of the present application has a certain compression space, the length of the signal lead 50 connected with the first conductive pad group 21 and the second conductive pad group 22 can be designed to be shorter, the space occupying the frame of the display panel 100 is reduced, and therefore the narrow frame design of the display panel 100 is facilitated, the screen occupation ratio is further facilitated to be improved, and the requirement of a user on the narrow frame design is met. In addition, although the length of each second conductive pad 221 is smaller than the length of the first conductive pad 211, the area of the orthographic projection of each second conductive pad 221 on the plane of the first substrate 10 is designed to be equal to the area of the orthographic projection of the first conductive pad 211 on the plane of the first substrate 10, so that the resistances of the first conductive pad 211 and the second conductive pad 221 are the same, and when the electrical connection part 20 is bound with the flexible circuit board 30, the binding effect and the conductive effect of the first conductive pad 211 and the second conductive pad 221 can be consistent, thereby being beneficial to realizing the uniformity of the binding effect and the uniformity of the conductive effect of the first conductive pad 211 and the second conductive pad 221. In addition, the area of the orthographic projection of each second conductive pad 221 on the plane of the first substrate 10 is designed to be equal to the area of the orthographic projection of the first conductive pad 211 on the plane of the first substrate 10, when the electric connection part 20 and the flexible circuit board 30 are bound, the contact area of each first conductive pad 211 and each second conductive pad 221 on the flexible circuit board 30 can be ensured to be the same, the problem that poor contact or binding is not achieved between the electric connection part 20 and the flexible circuit board 30 is avoided to the greatest extent, and therefore the binding reliability between the electric connection part 20 and the flexible circuit board 30 is ensured.
Alternatively, with continued reference to fig. 3-6, in the present application, the first conductive pads 211 in the electrical connection portion 20 on the display panel 100 are disposed side by side, and the second conductive pads 221 are disposed side by side.
Specifically, this application sets up each first electrically conductive pad 211 and each second electrically conductive pad 221 in electric connection 20 side by side, and the electric connection 20 that adopts this kind of mode design arranges the mode neatly simply, realizes easily in the technology, and is easier with being connected of signal line moreover, can avoid the short circuit phenomenon to appear between each signal line to the at utmost.
Alternatively, in the embodiment shown in fig. 3-6, the lengths of the first conductive pads 211 in the first conductive pad group 21 are the same.
Specifically, the lengths of the first conductive pads 211 in the first conductive pad group 21 are designed to be the same, and in the process of manufacturing the first conductive pad group 21, only a plurality of the same first conductive pads 211 are required to be manufactured according to the same length and width, and a plurality of first conductive pads 211 with different lengths and widths do not need to be manufactured separately, so that the method is beneficial to saving and simplifying the production process, and the production efficiency of the display panel 100 is improved.
Alternatively, in the embodiment shown in FIGS. 3-6, the first conductive pad 211 has a length D1, 700um ≦ D1≤1100um。
Usually, the firstThe conductive pad group 21 and the second conductive pad group 22 are used to electrically connect with the flexible circuit board 30, and each of the first conductive pads 211 and each of the second conductive pads 221 are electrically connected with the electrical connection terminals on the flexible circuit board 30 in a one-to-one correspondence. The length of each first conductive pad 211 is designed to be more than or equal to 700um and less than or equal to D11100um within range is not more than, can ensure on the one hand that each first conductive pad 211's size can be connected with the electric connection terminal on the flexible circuit board 30 is reliably electrically, and on the other hand, the frame width that still can not increase display panel 100 when being in above-mentioned length within range of first conductive pad 211 is favorable to realizing display panel 100's narrow frame design.
Optionally, with continued reference to fig. 3 and 5, any two second conductive pads 221 in the second conductive pad group 22, the length of the second conductive pad 221 that is closer to the first conductive pad group 21 is greater than the length of the second conductive pad 221 that is farther from the first conductive pad group 21.
Specifically, in the embodiment shown in fig. 3 and 5, the length of the second conductive pad 221 tends to decrease from a position close to the first conductive pad group 21 to a position far from the first conductive pad group 21. Thus, the second conductive pad 221 with a shorter length can leave a certain compression space for the signal lead 50 connected thereto, and therefore, compared with the prior art, the length of the signal lead 50 connected to the second conductive pad 221 and the first conductive pad 211 can be shortened, thereby reducing the space of the frame occupied by the signal lead 50, and facilitating the implementation of the narrow frame design of the display panel 100.
Optionally, with continued reference to fig. 3 and 5, in the second conductive pad group 22, the second conductive pad 221 away from the first conductive pad group 21 has a length D2，D1/2≤D2≤2D1/3。
Specifically, in the embodiment shown in fig. 3 and 5, the length of the second conductive pad 221 farthest from the first conductive pad group 21 is designed to be D1/2≤D2≤2D1The length of the second conductive pad 221 is designed to be within a range of/3, that is, 1/2-1/3 of the length of the first conductive pad 211. Due to the first conductive pads 211 and the second conductive padsThe orthogonal projection areas of the two conductive pads 221 on the plane of the first substrate 10 are equal, when the length of the second conductive pad 221 is smaller than the length of the first conductive pad 211, the width of the second conductive pad 221 is larger than the width of the first conductive pad 211, the width of the second conductive pad 221 with the smallest length is the largest, and the length of the second conductive pad 221 with the smallest length is designed to be D1/2≤D2≤2D1In the range of/3, the width of the second conductive pad 221 may not become too large, and the widths of the other second conductive pads 221 are all smaller than the width of the second conductive pad 221 with the smallest length, so that, compared to the prior art, the portion where the width of the second conductive pads 221 is increased may not cause the entire width of the electrical connection portion 20 on the first substrate 10 of the present application to become too large, and when the length of the second conductive pad 221 with the smallest length is designed in the above range, the increase in the width of the entire electrical connection portion 20 may not cause the frame width of the display panel 100 to become large. In addition, the area of the orthographic projection of each second conductive pad 221 on the plane of the first substrate 10 is designed to be equal to the area of the orthographic projection of the first conductive pad 211 on the plane of the first substrate 10, and the widths of the second conductive pads 221 and the first conductive pads 211 are different, so that when the electric connection part 20 and the flexible circuit board 30 are bound, the contact areas of the first conductive pads 211 and the second conductive pads 221 and the electric connection terminals on the flexible circuit board 30 can be ensured to be the same, the problem that poor contact or binding does not occur between the electric connection part 20 and the flexible circuit board 30 is avoided to the greatest extent, and the binding reliability between the electric connection part 20 and the flexible circuit board 30 is ensured.
It should be noted that, in the embodiment shown in fig. 3 and 5, the length of the second conductive pad 221 may decrease from a position close to the first conductive pad group 21 to a position far from the first conductive pad group 21, and of course, the length may decrease according to a certain rule or may decrease irregularly, which is not specifically limited in this application, as long as the length of the second conductive pad 221 with the smallest length is at D1/2≤D2≤2D1The range of/3 is sufficient.
Optionally, referring to fig. 4 and fig. 6, the length of any two second conductive pads 221 in the second conductive pad group 22, which are close to the second conductive pads 221 of the first conductive pad group 21, is smaller than the length of the second conductive pads 221 far from the second conductive pads 221 of the first conductive pad group 21.
Specifically, in the embodiment shown in fig. 3 and 5, the length of the second conductive pad 221 tends to decrease from a position close to the first conductive pad group 21 to a position far from the first conductive pad group 21, and in addition to this implementation, in the embodiment shown in fig. 4 and 6, the length of the second conductive pad 221 tends to increase from a position close to the first conductive pad group 21 to a position far from the first conductive pad group 21. Similar to the embodiment shown in fig. 3 and 5, in the embodiment shown in fig. 4 and 6, the second conductive pad 221 with a shorter length can leave a certain compression space for the signal lead 50 connected thereto, and compared with the prior art, the length of the signal lead 50 connected to the second conductive pad 221 and the first conductive pad 211 can be shortened, so that the space of the frame occupied by the signal lead 50 is reduced, thereby facilitating the implementation of the narrow frame design of the display panel 100.
Optionally, with continued reference to fig. 4 and 6, in the second conductive pad group 22, the length of the second conductive pad 221 adjacent to the first conductive pad group 21 is D3，D1/2≤D3≤2D1/3。
Specifically, in the embodiment shown in fig. 4 and 6, the length of the second conductive pad 221 closest to the first conductive pad group 21 is designed to be D1/2≤D2≤2D1The length of the second conductive pad 221 is designed to be within a range of/3, that is, 1/2-1/3 of the length of the first conductive pad 211. Since the orthographic projection areas of the first conductive pads 211 and the second conductive pads 221 on the plane of the first substrate 10 are equal, when the length of the second conductive pads 221 is less than that of the first conductive pads 211, the width of the second conductive pads 221 is greater than that of the first conductive pads 211, and the width of the second conductive pads 221 with the minimum length is the maximum, the length of the second conductive pads 221 with the minimum length is designed to be D1/2≤D2≤2D1In the range of/3, the width of the second conductive pad 221 may not become too large, and the widths of the other second conductive pads 221 are all smaller than the width of the second conductive pad 221 with the smallest length, so that, compared to the prior art, the portion where the width of the second conductive pads 221 is increased may not cause the entire width of the electrical connection portion 20 on the first substrate 10 of the present application to become too large, and when the length of the second conductive pad 221 with the smallest length is designed in the above range, the increase in the width of the entire electrical connection portion 20 may not cause the frame width of the display panel 100 to become large. In addition, the area of the orthographic projection of each second conductive pad 221 on the plane of the first substrate 10 is designed to be equal to the area of the orthographic projection of the first conductive pad 211 on the plane of the first substrate 10, and the widths of the second conductive pads 221 and the first conductive pads 211 are different, so that when the electric connection part 20 and the flexible circuit board 30 are bound, the contact areas of the first conductive pads 211 and the second conductive pads 221 and the electric connection terminals on the flexible circuit board 30 can be ensured to be the same, the problem that poor contact or binding does not occur between the electric connection part 20 and the flexible circuit board 30 is avoided to the greatest extent, and the binding reliability between the electric connection part 20 and the flexible circuit board 30 is ensured.
It should be noted that, in the embodiments shown in fig. 4 and fig. 6, the lengths of the second conductive pads 221 may be increased one by one from a position close to the first conductive pad group 21 to a position far from the first conductive pad group 21, and may also be increased according to a certain rule or randomly, which is not specifically limited in this application as long as the length of the second conductive pad 221 with the smallest length is at D1/2≤D2≤2D1The range of/3 is sufficient.
Alternatively, fig. 7 is a second top view of the display panel provided in the present application, referring to fig. 7, the display panel 100 further includes gate lines 13 and data signal lines 14, the gate lines 13 extend along a first direction and are arranged along a second direction, the data signal lines 14 extend along the second direction and are arranged along the first direction, and the first direction and the second direction intersect; the electrical connection portion 20 is located in the extending direction of the data signal line 14, and the length in this application is the extending distance of the first conductive pad 211 or the second conductive pad 221 along the second direction.
Specifically, in the embodiment shown in fig. 7, the electrical connection portion 20 is disposed in the extending direction of the data signal line 14 in the display panel 100, and the electrical connection portion 20 is typically disposed at a position close to the bottom side edge of the display panel 100, referring to fig. 7, since the length of the second conductive pad 221 in the electrical connection portion 20 is set to be smaller than the length of the first conductive pad 211, and the second conductive pad 221 with a smaller length is a compression space reserved for the signal lead 50 connected thereto, the overall length of the signal lead 50 connected to the first conductive pad 211 and the second conductive pad 221 can be shortened, so that the width of the lower frame of the display panel 100 occupied by the signal lead 50 is reduced, and thus the narrow frame design of the display panel 100 is facilitated.
Alternatively, fig. 8 is a third top view of the display panel provided in the present application, and referring to fig. 8, the display panel 100 further includes a flexible circuit board 30, where the flexible circuit board 30 is bonded to the electrical connection portion 20; and the flexible circuit board 30 is electrically connected to one or both of the gate lines 13 and the data signal lines 14 through the electrical connection portion 20. In this way, the flexible circuit board 30 may transmit a control signal to the display panel 100 through one or both of the gate line 13 and the data signal line 14 connected thereto, and control the operation of the display panel 100.
Fig. 9 is a fourth top view of the display panel provided in the present application, and referring to fig. 9, a plurality of gate lines 13 and a plurality of data signal lines 14 intersect to define a plurality of pixel units 70, and a thin film transistor 60 and a pixel electrode 81 are disposed in each pixel unit 70. The gates 63 of the tfts 60 in the same row are connected to the same gate line 13, the sources 62 of the tfts 60 in the same column are connected to the same data line 14, and the drain 61 of each tft 60 is connected to a pixel electrode 81. The gate line 13 performs a gate function, transmits a voltage signal to the gate of the thin film transistor 60, and gates the pixel unit 70 corresponding to the thin film transistor 60; the data signal line 14 performs a data transfer function, and transmits a data signal to the gated pixel cell 70 through the source of the thin film transistor 60, thereby controlling the display of the gated pixel cell 70 and further controlling the display of the display panel 100.
Optionally, with continued reference to fig. 8, the display panel 100 in the present application further includes an integrated chip 40, and the integrated chip 40 is integrated on the flexible circuit board 30. The integrated chip 40 is electrically connected to one or both of the gate lines 13 and the data signal lines 14 on the display panel 100 through the flexible circuit board 30, and controls the operation of the display panel 100 by transmitting a control signal through one or both of the gate lines 13 and the data signal lines 14 connected thereto, for example, transmitting a gate signal to the gate lines 13 and transmitting a data signal to the data signal lines 14. In addition, since the area of the orthogonal projection of each second conductive pad 221 on the plane of the first substrate 10 is designed to be equal to the area of the orthogonal projection of the first conductive pad 211 on the plane of the first substrate 10, the resistances of the first conductive pad 211 and the second conductive pad 221 are the same, when the electrical connection portion 20 is bonded to the flexible circuit board 30, the bonding effect and the conductive effect of the first conductive pad 211 and the second conductive pad 221 are consistent, so that the uniformity of the bonding effect and the uniformity of the conductive effect of the first conductive pad 211 and the second conductive pad 221 are favorably realized, and when the conductive effects of the first conductive pad 211 and the second conductive pad 221 are consistent, the strobe signal sent by the integrated chip 40 to the gate line 13 can be more stable, and the data signal sent by the integrated chip 40 to the data line 14 can be more stable, therefore, the display performance of the display panel can be more reliable and stable.
Optionally, fig. 10 is a schematic structural diagram of a display device provided in the present application. Based on the same inventive concept, the present application also provides a display device 200, see fig. 10, including the display panel 100 in the above-described embodiment of the present application. The display device 200 provided by the present application may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. In the present application, the embodiment of the display device 200 can refer to the embodiment of the display panel 100100, and repeated points are not described herein.
According to the embodiments, the application has the following beneficial effects:
in the display panel and the display device provided by the invention, the electric connection part arranged on the first substrate comprises the first conductive pad group and the second conductive pad groups positioned at two sides of the first conductive pad group, and the length of each second conductive pad in the second conductive pad group is smaller than that of the first conductive pad in the first conductive pad group, when the conductive pad group adopting the design is used for connecting the signal lead, because the length of each second conductive pad in the second conductive pad groups positioned at two sides is smaller than that of the first conductive pad in the first conductive pad group, a certain compression space is reserved for the signal lead connected with each second conductive pad in the second conductive pad group, compared with the prior art, the signal routing connected with the first conductive pad group and the second conductive pad group in the design has a certain compression space, the length of the signal lead connected with the first conductive pad group and the second conductive pad group can be designed to be shorter, and the space occupied by the frame of the display panel and the display device is reduced, so that the narrow frame design of the display panel and the display device is facilitated, the screen occupation ratio is further facilitated to be improved, and the requirement of a user on the narrow frame design is met. In addition, although the length of each second conductive pad is less than the length of the first conductive pad in the present application, the area of the orthographic projection of each second conductive pad on the plane of the first substrate is designed to be equal to the area of the orthographic projection of the first conductive pad on the plane of the first substrate, so that the resistance of the first conductive pad is the same as that of the second conductive pad, when the electric connection part in the present application is bound with the flexible circuit board, the binding effect and the conductive effect of the first conductive pad and the second conductive pad are consistent, and the uniformity of the binding effect and the uniformity of the conductive effect of the first conductive pad and the second conductive pad are favorably realized. In addition, this application designs each second electrically conductive liner equal to first electrically conductive liner in the planar orthographic projection's of first base plate area in the orthographic projection of first base plate place, when tying up electric connection portion and flexible circuit board in this application, can also guarantee that each first electrically conductive liner and second electrically conductive liner are the same with each electric connection terminal's on the flexible circuit board area of contact, the problem that bad contact appears or not bind between electric connection portion and the flexible circuit board has been avoided to the at utmost, consequently, be favorable to guaranteeing the reliability of binding between electric connection portion and the flexible circuit board in this application.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (7)
1. A display panel, comprising:
a first substrate including a display area and a non-display area surrounding the display area;
the electric connection part is arranged on the first substrate and is positioned in the non-display area, and the electric connection part comprises a first conductive pad group and second conductive pad groups positioned on two sides of the first conductive pad group; the first conductive pad group comprises a plurality of first conductive pads, the second conductive pad group comprises a plurality of second conductive pads, the first conductive pads are arranged side by side along a second direction, and the second conductive pads are arranged side by side along the second direction; along a first direction, the length of each second conductive gasket is smaller than that of the first conductive gasket, and the area of the orthographic projection of the second conductive gasket on the plane of the first substrate is equal to that of the first conductive gasket on the plane of the first substrate; wherein the first direction and the second direction are perpendicular to each other;
the signal lead is electrically connected with the electric connection part, and the signal lead is positioned on the same side of the electric connection part; in the first direction, one end of each second conductive gasket far away from the signal lead is flush;
any two second conductive pads in the second conductive pad group, wherein the length of the second conductive pad close to the first conductive pad group is smaller than the length of the second conductive pad far away from the first conductive pad group; the signal leads comprise a first signal lead and a second signal lead, the first signal lead is electrically connected with the first conductive gasket, the second signal lead is electrically connected with the second conductive gasket, each second signal lead comprises an included angle formed by at least one inflection point, each second signal lead comprises a straight line part extending along the length direction of the second conductive gasket and an oblique line part extending along the direction far away from the first conductive gasket group, the intersection point of the straight line part and the oblique line part is the inflection point, the straight line part and the oblique line part are intersected to form the included angle, and the included angle is an obtuse angle; an included angle between the diagonal part and the second direction is an inclined angle of the diagonal part, and the inclined angle of the diagonal part is an acute angle;
the length of the first conductive pad is D1, and the length of the second conductive pad in the second conductive pad group adjacent to the first conductive pad group is D3，D1/2≤D3≤2D1/3；
In any two inflection points, in the second direction, an inflection point of a second signal lead connected to a second conductive pad close to the first conductive pad group is a first inflection point, and an inflection point of a second signal lead connected to a second conductive pad far away from the first conductive pad group is a second inflection point; in the first direction, a distance from the first inflection point to an end of the second conductive pad away from the signal lead is smaller than a distance from the second inflection point to an end of the second conductive pad away from the signal lead.
2. The display panel according to claim 1, characterized in that: the lengths of each of the first conductive pads in the first conductive pad group are the same.
3. The display panel according to claim 1, characterized in that: the range of D1 is: d is more than or equal to 700um1≤1100um。
4. The display panel according to claim 1, characterized in that: the display panel further includes gate lines extending in the second direction and arranged in the first direction, and data signal lines extending in the first direction and arranged in the second direction;
the electrical connection portion is located in an extending direction of the data signal line, and the length is an extending distance of the first conductive pad or the second conductive pad along the first direction.
5. The display panel according to claim 4, wherein: the display panel further comprises a flexible circuit board, and the flexible circuit board is bonded with the electric connection part; and the flexible circuit board is electrically connected with one or two of the gate line and the data signal line through the electric connection part.
6. The display panel according to claim 5, wherein: the display panel further comprises an integrated chip, and the integrated chip is integrated on the flexible circuit board.
7. A display device comprising the display panel according to any one of claims 1 to 6.
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| CN201710434230.2A CN107369692B (en) | 2017-06-09 | 2017-06-09 | Display panel and display device |
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| CN201710434230.2A CN107369692B (en) | 2017-06-09 | 2017-06-09 | Display panel and display device |
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| CN107369692A CN107369692A (en) | 2017-11-21 |
| CN107369692B true CN107369692B (en) | 2021-04-30 |
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| CN108538202A (en) * | 2018-03-29 | 2018-09-14 | 武汉华星光电技术有限公司 | A kind of display panel and display device |
| TWI682221B (en) * | 2018-05-22 | 2020-01-11 | 鴻海精密工業股份有限公司 | Electronic device and method for making electronic device |
| CN108594017B (en) * | 2018-07-02 | 2021-04-13 | 京东方科技集团股份有限公司 | Bonding impedance detection system and method |
| CN109116643A (en) * | 2018-09-10 | 2019-01-01 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113169190A (en) * | 2018-12-03 | 2021-07-23 | 深圳市柔宇科技股份有限公司 | Display device |
| CN109742115B (en) * | 2019-01-08 | 2021-01-26 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN118363216A (en) * | 2019-04-10 | 2024-07-19 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN109994042B (en) * | 2019-04-11 | 2024-05-03 | 武汉华星光电技术有限公司 | Driving chip and display panel |
| US11189584B2 (en) | 2019-04-11 | 2021-11-30 | Wuhan China Star Optoeleetronies Technology Co., Ltd. | Driving chip including bonding pads in non-display area and display panel |
| CN110007518B (en) * | 2019-04-15 | 2024-02-09 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN110174968B (en) * | 2019-05-24 | 2023-01-10 | 武汉天马微电子有限公司 | Display device |
| CN110364109A (en) | 2019-07-29 | 2019-10-22 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110456944B (en) * | 2019-08-15 | 2022-09-20 | 业成科技（成都）有限公司 | Touch panel and manufacturing method thereof |
| CN114270251B (en) * | 2020-06-15 | 2023-10-24 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111681554B (en) * | 2020-06-30 | 2022-03-25 | 上海中航光电子有限公司 | Display panel and display device |
| WO2023028814A1 (en) * | 2021-08-31 | 2023-03-09 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
| CN114121855B (en) * | 2021-11-04 | 2024-10-18 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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