CN113009740A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113009740A CN113009740A CN202110213934.3A CN202110213934A CN113009740A CN 113009740 A CN113009740 A CN 113009740A CN 202110213934 A CN202110213934 A CN 202110213934A CN 113009740 A CN113009740 A CN 113009740A
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- circuit board
- substrate
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- fingers
- electrically connected
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/117—Pads along the edge of rigid circuit boards, e.g. for pluggable connectors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Structure Of Printed Boards (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel and a display device, wherein the display panel comprises a display substrate, a flexible circuit board and a printed circuit board; the first area of the flexible circuit board comprises a first substrate, a plurality of first golden fingers and a plurality of first connecting wires, the first golden fingers are arranged along a first direction and are arranged in at least two rows along a second direction, each first connecting wire is electrically connected with the corresponding first golden finger, the first connecting wires which are electrically connected with the first golden fingers on the same row are arranged on the same layer, the first connecting wires which are electrically connected with the first golden fingers on different rows are arranged on different layers, the wiring space of the first connecting wires is favorably increased, the number of the first golden fingers which can be contained in the unit volume of the flexible circuit board is increased, the whole width of the flexible circuit board and the whole width of the printed circuit board are effectively reduced, and the display function diversification of medium-size products is favorably realized.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
At present, in order to ensure the power supply capability of a liquid crystal panel, a Printed Circuit Board (PCBA) is often used to solder important electronic components on the pcb, so that input signals of the display panel are processed and then input to an Integrated Circuit Chip (IC) through a flexible Circuit Board, thereby realizing signal processing and power supply in the panel. The display panel and the PCBA are connected through a Flexible Printed Circuit (FPC) for multiple options of the conventional notewood product in a high-temperature binding mode, and under the high-temperature pressing effect, conductive particles in the conductive adhesive are broken by pressure to conduct and connect the FPC and the PCBA.
For a series of medium-sized products such as notebook computers and tablet computers, in order to meet the functional requirements of the products on richness and diversity, the number of wires for inputting electric signals to the products is increased in an equal ratio, so that the number of golden fingers collected in the PCBA binding area is increased in different degrees. The main corresponding schemes of the existing products are mainly divided into two types: firstly, the number of binding regions is increased, but the scheme can synchronously increase the number of ICs and increase the manufacturing cost; and secondly, the width of the binding area of the PCBA is increased, all signal wires are collected in the same binding area, but the length of the binding area can be increased by the scheme, so that the whole size of the PCBA is extruded, and the realization of narrow-frame products is not facilitated.
Therefore, it is desirable to provide a display panel and a display device to solve the above technical problems.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, and aims to solve the technical problems that the length of a PCBA (printed circuit board assembly) binding area of the conventional display panel is increased, and narrow frames are not easy to realize.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides a display panel, which comprises a display substrate, a flexible circuit board and a printed circuit board; a first area and a second area are respectively arranged at two end sides of the flexible circuit board, the first area is used for binding the printed circuit board, and the second area is used for binding the display substrate; the first region includes:
a first substrate;
the first golden fingers are arranged on one side, facing the printed circuit board, of the first substrate, are arranged along a first direction and are arranged in at least two rows along a second direction, and the first direction is perpendicular to the second direction; and
each first connecting wire is electrically connected with the corresponding first golden finger, a plurality of first connecting wires electrically connected with a plurality of first golden fingers in the same row are arranged on the same layer, and a plurality of first connecting wires electrically connected with a plurality of first golden fingers in different rows are arranged on different layers.
According to the display panel provided by the invention, the first substrate comprises at least two flexible insulating layers, the arrangement sequence of the at least two flexible insulating layers in a third direction is a 1 st flexible insulating layer and a 2 nd flexible insulating layer … Nth flexible insulating layer, and the third direction is perpendicular to the plane of the first direction and the second direction and extends towards one side far away from the printed circuit board;
the arrangement sequence of the at least two rows of the first golden fingers in the second direction is sequentially a first golden finger in a 1 st row and a first golden finger in a 2 nd row, namely … nth row; sequentially, the first connection trace electrically connected to the first golden finger in the 1 st row is located in the 1 st flexible insulating layer, and the first connection trace electrically connected to the first golden finger in the 2 nd row is located in the 2 nd flexible insulating layer … and the first connection trace electrically connected to the first golden finger in the nth row is located in the nth flexible insulating layer.
According to the display panel provided by the invention, the first golden fingers in adjacent rows are arranged side by side.
According to the display panel provided by the invention, the first golden fingers in adjacent rows are arranged in a staggered manner.
According to the display panel provided by the present invention, the printed circuit board includes:
a second substrate;
the second substrate faces one side of the flexible circuit board, the second golden fingers are arranged on the second substrate, the second golden fingers are arranged on the first substrate, the second golden fingers are arranged on the second substrate, and the second golden fingers are arranged in at least two rows in the second direction.
According to the display panel provided by the invention, the printed circuit board further comprises a plurality of second connecting wires, each second connecting wire is electrically connected with the corresponding second golden finger, the plurality of second connecting wires electrically connected with the plurality of second golden fingers in the same row are arranged in the same layer, and the plurality of second connecting wires electrically connected with the plurality of second golden fingers in different rows are arranged in different layers.
According to the display panel provided by the invention, the first substrate is provided with a channel region, and the channel region is sunken between two adjacent first golden fingers.
According to the display panel provided by the invention, one side of the flexible circuit board, which is provided with the first golden finger, is bound with one side of the printed circuit board, which is provided with the second golden finger, through the conductive adhesive.
According to the display panel provided by the present invention, the second region includes:
the first substrate; and
the third golden fingers are arranged on one side, facing the display substrate, of the first substrate, and are electrically connected with the first golden fingers through the connecting wires.
The invention provides a display device which comprises the display panel.
The invention has the beneficial effects that: according to the display panel and the display device, the plurality of first golden fingers arranged in at least two rows are arranged in the first area for binding the printed circuit board on the flexible circuit board, so that the plurality of first golden fingers are orderly arranged; and through the many first connection that are connected with a plurality of first golden fingers electricity that are located same row walk the line and set up on the same layer, walk the line different layer setting with the first connection that is located a plurality of first golden fingers electricity of different rows, be favorable to increasing the wiring space that first connection was walked the line for the first golden finger quantity that flexible circuit board unit volume can hold increases, thereby effectively reduced the whole width of flexible circuit board and printed circuit board, be favorable to realizing that medium-sized product shows that the function is diversified.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic overall plan view of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure view of a display panel provided in an embodiment of the invention in a first direction;
fig. 3 is a schematic cross-sectional view of a display panel in a second direction according to an embodiment of the invention;
fig. 4 is a schematic cross-sectional view of a display panel in a second direction according to an embodiment of the invention;
fig. 5 is a schematic diagram of a first planar structure of a flexible circuit board according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a second planar structure of a flexible circuit board according to an embodiment of the present invention;
fig. 7 is a schematic view of a third planar structure of a flexible circuit board according to an embodiment of the present invention.
Description of reference numerals:
100. a display panel;
10. a display substrate; 20. a flexible circuit board; 30. a printed circuit board; 40. a conductive adhesive;
11. a display area; 12. a non-display area; 13. a substrate binding region; 14. an integrated circuit chip; 15. a connection terminal;
21. a first region; 22. a second region; 211. a first substrate; 2111. a flexible insulating layer; 2112. a via hole; 2113. a channel region; 212. a first golden finger; 213. a first connection wire; 214. a third golden finger;
31. printing a binding region; 311. a second substrate; 312. a second golden finger; 313. the second connecting trace.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, and are not intended to limit the present invention. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, particularly in the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
Referring to fig. 1, fig. 1 is a schematic overall plan view of a display panel according to an embodiment of the present invention. The display panel 100 according to the embodiment of the present invention includes a display substrate 10, a flexible circuit board 20, and a printed circuit board 30. Display substrate 10 includes display area 11 and centers on display area 11's non-display area 12, non-display area 12 is equipped with base plate and binds district 13, integrated circuit chip 14 flexible circuit board 20 with printed circuit board 30 all locates in the base plate binds the district 13, still be equipped with a plurality of connecting terminals 15 on the display substrate 10. The two end sides of the flexible circuit board 20 are respectively provided with a first area 21 and a second area 22, the first area 21 is used for binding the printed circuit board 30, and the second area 22 is used for binding the display substrate 10.
Referring to fig. 2, fig. 2 is a schematic cross-sectional structure of a display panel in a first direction according to an embodiment of the present invention, and fig. 3 is a schematic cross-sectional structure of the display panel in a second direction according to the embodiment of the present invention. The first region 21 includes a first substrate 211, a plurality of first gold fingers 212, and a plurality of first connection traces 213. The first base 211 functions as a substrate, and the first base 211 may be made of a flexible material such as polyimide. The first golden finger 212 is an electrical connection pin of the flexible circuit board 20, and a signal of the flexible circuit board 20 is transmitted through the first golden finger 212. The first gold finger 212 is composed of a plurality of gold-plated conductive contacts, the surface of which is gold-plated and the conductive contacts are arranged like fingers, so that the name "gold finger". The first gold fingers 212 are disposed on the first substrate 211 facing one side of the printed circuit board 30, and the first gold fingers 212 are arranged along the first direction x and arranged in at least two rows along the second direction y. The first direction x is perpendicular to the second direction y, and the first direction x is an extending direction of one side of the flexible circuit board 20 close to the printed circuit board 30.
Referring to fig. 5 to 7, in the embodiment of the present invention, the plurality of first gold fingers 212 are arranged in at least two rows, so that the length of the flexible circuit board 20 can be effectively reduced, a narrow frame design is facilitated, the size of the flexible circuit board 20 is reduced, and the production cost of the flexible circuit board 20 is reduced.
Each of the first connecting traces 213 is electrically connected to the corresponding first gold finger 212, and it can be understood that the plurality of first gold fingers 212 are arranged in at least two rows, so that the number of the first gold fingers 212 that can be accommodated by the unit volume of the flexible circuit board 20 is increased compared with the prior art, and the number of the first connecting traces 213 that are electrically connected to the first gold fingers 212 is also increased compared with the prior art, and a single-layer film layer of the flexible circuit board 20 cannot provide a sufficient wiring space for the first connecting traces 213. In view of this, in the embodiment of the present invention, the film layer of the flexible circuit board 20 on which the first connection trace 213 is disposed is designed to be multi-layered, the plurality of first connection traces 213 electrically connected to the plurality of first golden fingers 212 located in the same row are disposed on the same layer, and the plurality of first connection traces 213 electrically connected to the plurality of first golden fingers 212 located in different rows are disposed on different layers, which is beneficial to increasing the wiring space of the first connection trace 213 and satisfying the wiring requirement, thereby effectively reducing the overall width of the flexible circuit board 20, and being beneficial to realizing the diversification of the display function of the medium-sized product.
Specifically, the first substrate 211 includes at least two flexible insulation layers 2111, and the material of each flexible insulation layer 2111 may be the same. The at least two layers of flexible insulation layers 2111 are sequentially arranged in the third direction z as a layer 1 flexible insulation layer and a layer 2 flexible insulation layer …, where the third direction z is perpendicular to the plane of the first direction x and the second direction y and extends toward the side away from the printed circuit board 30.
The arrangement sequence of the at least two rows of the first golden fingers 212 in the second direction y is the first golden finger 212 in the row 1, and the first golden finger 212 … in the row 2, and the first golden finger 212 in the row N in turn; in turn, the first connection trace 213 electrically connected to the first golden finger 212 in the 1 st row is located in the 1 st flexible insulating layer, and the first connection trace 213 electrically connected to the first golden finger 212 in the 2 nd row is located in the 2 nd flexible insulating layer … and the first connection trace 213 electrically connected to the first golden finger 212 in the nth row is located in the nth flexible insulating layer. In short, the first connecting trace 213 connected to the first golden finger 212 disposed relatively close to the second region 22 is located in the lower flexible insulating layer, and the first connecting trace 213 connected to the first golden finger 212 disposed relatively far from the second region 22 is located in the upper flexible insulating layer, so as to avoid short circuit fault caused by contact between the first connecting traces 213 disposed on different layers.
The number of layers of the flexible insulating layer 2111 is equal to the number of rows of the first gold fingers 212, and the number of layers of the flexible insulating layer 2111 may be two, three, four, five or even more. For example, in one embodiment, the first substrate 211 may include two layers of the flexible insulating layer 2111, and the first gold fingers 212 are arranged in two rows; in one embodiment, the first substrate 211 may include three layers of the flexible insulating layer 2111, and the first gold fingers 212 are arranged in three rows; by analogy, the first substrate 211 may include N layers of the flexible insulating layer 2111, and the first gold fingers 212 are arranged in N rows. It can be understood that, the larger the number of layers of the flexible insulating layer 2111 is, the larger the wiring space for the first connection trace 213 is, which is beneficial to increase the number of the first gold fingers 212; however, the number of layers of the flexible insulating layer 2111 is determined according to the actual situation due to the difficulty of the process.
In order to clearly describe the technical solution of the present invention, the embodiment of the present invention is illustrated by an example that the first substrate 211 may include three layers of the flexible insulating layer 2111, and the first gold fingers 212 are arranged in three rows, but the present invention is not limited thereto.
Specifically, please refer to fig. 2. The three layers of the flexible insulating layers 2111 are sequentially arranged in the third direction z as a 1 st flexible insulating layer, a 2 nd flexible insulating layer and a 3 rd flexible insulating layer, and the two rows of the first golden fingers 212 are sequentially arranged in the second direction y as a 1 st row of the first golden fingers 212, a 2 nd row of the first golden fingers 212 and a 3 rd row of the first golden fingers 212.
In one embodiment, the first connection traces 213 electrically connected to the first gold finger 212 in the 1 st row are all located in the 1 st flexible insulating layer, the first connection traces 213 electrically connected to the first gold finger 212 in the 2 nd row are all located in the 2 nd flexible insulating layer, and the first connection traces 213 electrically connected to the first gold finger 212 in the 3 rd row are all located in the 3 rd flexible insulating layer.
Further, referring to fig. 4, fig. 4 is a schematic cross-sectional structure view of the display panel in the second direction according to the embodiment of the present invention. In order to effectively utilize the wiring space of the flexible insulating layer 2111, in an embodiment, all of the first connection traces 213 electrically connected to the first gold finger 212 in the 1 st row are located in the 1 st flexible insulating layer, a part of the first connection traces 213 electrically connected to the first gold finger 212 in the 2 nd row are located in the 1 st flexible insulating layer, another part of the first connection traces are located in the 2 nd flexible insulating layer, the two parts are electrically connected through the via hole 2112 formed in the 1 st flexible insulating layer and the 2 nd flexible insulating layer, and the first gold finger 212 in the 2 nd row is first electrically connected to the first connection trace 213 located in the 1 st flexible insulating layer.
Similarly, a part of the first connection trace 213 electrically connected to the 3 rd row first gold finger 212 is located in the 1 st flexible insulating layer, a part of the first connection trace is located in the 2 nd flexible insulating layer, the rest of the first connection trace 213 is located in the 2 nd flexible insulating layer, the first connection trace 213 located in the 1 st flexible insulating layer and the first connection trace 213 located in the 2 nd flexible insulating layer are electrically connected through the via 2112 opened in the 1 st flexible insulating layer and the 2 nd flexible insulating layer, the first connection trace 213 located in the 2 nd flexible insulating layer and the first connection trace 213 located in the 3 rd flexible insulating layer are electrically connected through the via 2112 opened in the 2 nd flexible insulating layer and the 3 rd flexible insulating layer, and the 3 rd row first gold finger 212 is first electrically connected to the first connection trace 213 located in the 1 st flexible insulating layer .
The specific arrangement of the first gold fingers 212 is not particularly limited in the embodiment of the present invention, for example, referring to fig. 5, a plurality of first gold fingers 212 in adjacent rows may be arranged side by side. For another example, referring to fig. 6, the first gold fingers 212 in adjacent rows may be staggered, and the first gold fingers 212 in adjacent rows do not overlap in the second direction y. Further, referring to fig. 7, the first gold fingers 212 in adjacent rows may be disposed in a staggered manner, and the first gold fingers 212 in adjacent rows partially overlap in the second direction y, so that the length of the first area 21 of the flexible circuit board 20 is further shortened as compared with that in fig. 3 and 4.
With continued reference to fig. 2 and 3, the printed circuit board 30 includes a plurality of printed bonding areas 31, and the printed bonding areas 31 include a second substrate 311 and a plurality of second gold fingers 312. The second base 311 functions as a substrate, and the material of the second base 311 may be a hard material. Similarly, the second gold finger 312 is an electrical connection pin of the printed circuit board 30, and the signal of the printed circuit board 30 is transmitted through the second gold finger 312. The second gold finger 312 is composed of a plurality of gold-plated conductive contacts, and the surface of the gold-plated conductive contacts is arranged like a finger, so that the gold finger is named as a gold finger.
The plurality of second gold fingers 312 are disposed on the second substrate 311 toward one side of the flexible circuit board 20, the plurality of second gold fingers 312 are disposed opposite to the plurality of first gold fingers 212, and the plurality of second gold fingers 312 are arranged along the first direction x and are disposed in at least two rows along the second direction y.
Similarly, the second gold fingers 312 are arranged in at least two rows, which can effectively reduce the length of the printed circuit board 30, thereby being beneficial to realizing the design of narrow frames and saving the size of the printed circuit board 30, thereby reducing the production cost of the printed circuit board 30. The film layer of the printed circuit board 30 on which the first connecting trace 213 is disposed is designed to be multi-layer, and the plurality of second connecting traces 313 electrically connected to the plurality of second golden fingers 312 located in the same row are disposed on the same layer, and the plurality of second connecting traces 313 electrically connected to the plurality of second golden fingers 312 located in different rows are disposed on different layers, so that the wiring space of the second connecting traces 313 is increased, the wiring requirement is met, the overall width of the printed circuit board 30 is effectively reduced, and the display function diversification of the medium-sized products is facilitated. It should be noted that the film design of the printed circuit board 30, the arrangement design of the second gold fingers 312, and the routing manner of the second connection traces 313 may refer to the related descriptions of the above embodiments regarding the flexible circuit board 20, and are not detailed herein.
The width of the first gold finger 212 is slightly smaller than that of the second gold finger 312, so as to ensure that the first substrate 211 of the flexible circuit board 20 has a space that is bent and concave in the subsequent pressing process. Because the first substrate 211 of the flexible circuit board 20 is made of a flexible material and is easily deformed after being pressed by the outside, and the first gold fingers 212 are hard metal strips and are not easily deformed, the first substrate 211 in the region where the first gold fingers 212 are located is not easily deformed, and the first substrate 211 located between two adjacent first gold fingers 212 is easily deformed and is recessed downward, so that the first substrate 211 forms a channel region 2113, and the channel region 2113 is recessed between two adjacent first gold fingers 212.
One side of the flexible circuit board 20 where the first gold finger 212 is arranged and one side of the printed circuit board 30 where the second gold finger 312 is arranged are bound through the conductive adhesive 40, and under a high-temperature environment, after conductive particles in the conductive adhesive 40 are broken by pressure, the flexible circuit board 20 and the printed circuit board 30 are electrically connected. Specifically, the Conductive adhesive 40 may be an Anisotropic Conductive Film (ACF).
Further, referring to fig. 1 and fig. 5 to fig. 7, the second region 22 of the flexible circuit board 20 includes the first substrate 211 and a plurality of third gold fingers 214, the plurality of third gold fingers 214 are disposed on the first substrate 211 and face the side of the display substrate 10, and the plurality of third gold fingers 214 are electrically connected to the plurality of first gold fingers 212 through the plurality of connecting traces. Firstly, the signal of the printed circuit board 30 is transmitted to the flexible circuit board 20 by the binding of the second gold finger 312 and the first gold finger 212, then the signal is transmitted to the integrated circuit chip 14 by the first connecting trace, the third gold finger 214 and the connecting terminal 15, and finally, the integrated circuit chip 14 realizes the image display by controlling the light emitting condition of the pixels of the display area 11 of the display substrate 10.
An embodiment of the present invention further provides a display apparatus, where the display apparatus includes the display panel 100 in the above embodiment, and the display apparatus may be a wearable device, such as a smart bracelet, a smart watch, a Virtual Reality (VR) device, and the like, or may be a mobile smart phone, an electronic book, an electronic newspaper, a television, a personal portable computer, and a foldable or rollable flexible OLED display and lighting device.
The beneficial effects are that: according to the display panel and the display device provided by the embodiment of the invention, the first area on the flexible circuit board for binding the printed circuit board is provided with the plurality of first golden fingers arranged in at least two rows, so that the plurality of first golden fingers are orderly arranged; and through the many first connection that are connected with a plurality of first golden fingers electricity that are located same row walk the line and set up on the same layer, walk the line different layer setting with the first connection that is located a plurality of first golden fingers electricity of different rows, be favorable to increasing the wiring space that first connection was walked the line for the first golden finger quantity that flexible circuit board unit volume can hold increases, thereby effectively reduced the whole width of flexible circuit board and printed circuit board, be favorable to realizing that medium-sized product shows that the function is diversified.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A display panel is characterized by comprising a display substrate, a flexible circuit board and a printed circuit board; a first area and a second area are respectively arranged at two end sides of the flexible circuit board, the first area is used for binding the printed circuit board, and the second area is used for binding the display substrate; the first region includes:
a first substrate;
the first golden fingers are arranged on one side, facing the printed circuit board, of the first substrate, are arranged along a first direction and are arranged in at least two rows along a second direction, and the first direction is perpendicular to the second direction; and
each first connecting wire is electrically connected with the corresponding first golden finger, a plurality of first connecting wires electrically connected with a plurality of first golden fingers in the same row are arranged on the same layer, and a plurality of first connecting wires electrically connected with a plurality of first golden fingers in different rows are arranged on different layers.
2. The display panel according to claim 1, wherein the first substrate comprises at least two flexible insulating layers, the at least two flexible insulating layers are sequentially a layer 1 flexible insulating layer and a layer 2 flexible insulating layer … and a layer N flexible insulating layer in an arrangement order in a third direction, and the third direction is perpendicular to a plane in which the first direction and the second direction are located and extends towards a side away from the printed circuit board;
the arrangement sequence of the at least two rows of the first golden fingers in the second direction is sequentially a first golden finger in a 1 st row and a first golden finger in a 2 nd row, namely … nth row; sequentially, the first connection trace electrically connected to the first golden finger in the 1 st row is located in the 1 st flexible insulating layer, and the first connection trace electrically connected to the first golden finger in the 2 nd row is located in the 2 nd flexible insulating layer … and the first connection trace electrically connected to the first golden finger in the nth row is located in the nth flexible insulating layer.
3. The display panel of claim 1, wherein the first gold fingers of adjacent rows are arranged side by side.
4. The display panel of claim 1, wherein the first gold fingers of adjacent rows are staggered.
5. The display panel according to claim 1, wherein the printed circuit board comprises:
a second substrate;
the second substrate faces one side of the flexible circuit board, the second golden fingers are arranged on the second substrate, the second golden fingers are arranged on the first substrate, the second golden fingers are arranged on the second substrate, and the second golden fingers are arranged in at least two rows in the second direction.
6. The display panel according to claim 5, wherein the printed circuit board further includes a plurality of second connection traces, each of the second connection traces is electrically connected to a corresponding second golden finger, the plurality of second connection traces electrically connected to the plurality of second golden fingers in the same row are disposed in the same layer, and the plurality of second connection traces electrically connected to the plurality of second golden fingers in different rows are disposed in different layers.
7. The display panel according to claim 5, wherein the first substrate has a channel region, and the channel region is recessed between two adjacent first gold fingers.
8. The display panel according to claim 5, wherein the side of the flexible circuit board where the first golden finger is arranged is bound with the side of the printed circuit board where the second golden finger is arranged by a conductive adhesive.
9. The display panel according to claim 1, wherein the second region comprises:
the first substrate; and
the third golden fingers are arranged on one side, facing the display substrate, of the first substrate, and are electrically connected with the first golden fingers through the connecting wires.
10. A display device comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110213934.3A CN113009740B (en) | 2021-02-25 | 2021-02-25 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110213934.3A CN113009740B (en) | 2021-02-25 | 2021-02-25 | Display panel and display device |
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| CN113009740A true CN113009740A (en) | 2021-06-22 |
| CN113009740B CN113009740B (en) | 2022-11-08 |
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| CN202110213934.3A Active CN113009740B (en) | 2021-02-25 | 2021-02-25 | Display panel and display device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150228706A1 (en) * | 2014-02-10 | 2015-08-13 | Samsung Display Co., Ltd. | Display device |
| CN105589236A (en) * | 2016-03-14 | 2016-05-18 | 昆山龙腾光电有限公司 | Foldable display module and displayer with the same |
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2021
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| US20150228706A1 (en) * | 2014-02-10 | 2015-08-13 | Samsung Display Co., Ltd. | Display device |
| CN105589236A (en) * | 2016-03-14 | 2016-05-18 | 昆山龙腾光电有限公司 | Foldable display module and displayer with the same |
| CN108241240A (en) * | 2018-02-08 | 2018-07-03 | 上海天马微电子有限公司 | A kind of display panel and display device |
| CN109521611A (en) * | 2018-12-20 | 2019-03-26 | 上海中航光电子有限公司 | Display panel and display device |
| CN110913573A (en) * | 2019-12-17 | 2020-03-24 | 武汉天马微电子有限公司 | Flexible circuit board |
| CN112083608A (en) * | 2020-09-15 | 2020-12-15 | 武汉华星光电技术有限公司 | Display panel, method for detecting bonding effect of display panel and display device |
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