CN111650788B - Special-shaped display panel and special-shaped display device - Google Patents
Special-shaped display panel and special-shaped display device Download PDFInfo
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- CN111650788B CN111650788B CN202010730163.0A CN202010730163A CN111650788B CN 111650788 B CN111650788 B CN 111650788B CN 202010730163 A CN202010730163 A CN 202010730163A CN 111650788 B CN111650788 B CN 111650788B
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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
- G02F1/13458—Terminal pads
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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
- H05K1/115—Via connections; Lands around holes or via connections
- H05K1/116—Lands, clearance holes or other lay-out details concerning the surrounding of a via
Abstract
The application discloses dysmorphism display panel and dysmorphism display device, dysmorphism display panel includes the fan-out zone and is used for binding the binding region of driver chip, the border of the dysmorphism display region that is close to with the binding region is arc shape, the fan-out zone includes many fan-out leads, the binding region includes input pad district and output pad district, the both sides of directional output pad district by the center of output pad district, the output pad that is located output pad district both sides is arranged to one side slope near special-shaped display region, the frame size of fan-out district both sides can be better compressed, and can keep the performance and the size of each component of lower frame department, make the space that the lower frame that is used for the display panel of special-shaped image demonstration occupied reduce, guarantee to include the special-shaped display panel realization required appearance of special-shaped display region, in order to satisfy customer's requirement.
Description
Technical Field
The application relates to the technical field of wearable display, in particular to a special-shaped display panel and a special-shaped display device.
Background
With the rapid development and popularization of internet technologies, wearable devices are also increasingly getting into people's daily life, and special-shaped display devices such as smart watches are particularly prominent, smart watches play a dual role of fashionable accessories and functional devices, and circular shapes which are considered to be the most elegant, such as narrow-frame designs of special-shaped display panels of circular display panels, can improve the overall display effect.
However, most of the current "circular" display panels have a larger frame, and the step of COG (Chip On Glass) has a larger bevel edge design and a "pseudo-pure circle" shape, and the watch case based On the design also has a "pseudo-pure circle" shape.
Therefore, how to compress the lower frame of the irregular display panel to ensure the required irregular shape is an urgent technical problem to be solved in the field.
Disclosure of Invention
In view of the above, an object of the embodiments of the present invention is to provide a display panel and a display device, which optimize the layout of each structure in the display panel without reducing the performance of the driving chip, so as to easily achieve the narrow frame of the display panel for image display.
The embodiment of the invention discloses a display panel, which comprises a special-shaped display area and a non-display area, wherein the non-display area is arranged around the special-shaped display area; the special-shaped display area comprises a plurality of signal lines which are arranged along a first direction and extend along a second direction, and the first direction and the second direction are intersected; the non-display area comprises a fan-out area and a binding area, the driving chip is bound in the binding area, the binding area is provided with a plurality of binding pads, and a plurality of fan-out leads are positioned in the fan-out area; the boundary of the special-shaped display area adjacent to the binding area is arc-shaped, the binding area comprises an output bonding pad area and an input bonding pad area, the output bonding pad area comprises a plurality of output bonding pads, the output bonding pads are arranged into at least two rows, the input bonding pad area comprises a plurality of input bonding pads, the output bonding pads are respectively and electrically connected with a plurality of corresponding fan-out leads, the fan-out leads are respectively and electrically connected with a plurality of corresponding signal lines, and the input bonding pads are respectively and electrically connected with corresponding signal pins on the flexible circuit board; the output pad area comprises a first sub-pad area and second sub-pad areas positioned on two sides of the first sub-pad area, wherein the output pad comprises a first pad and a second pad, the first pad is positioned in the first sub-pad area, the second pad is positioned in the second sub-pad area, and the second pads are obliquely arranged from two sides of the first sub-pad area to one side close to the special-shaped display area.
Based on the same invention concept, the invention also discloses a special-shaped display device which comprises the special-shaped display panel.
Compared with the prior art, the special-shaped display panel and the special-shaped display device provided by the invention at least realize the following beneficial effects:
in the special-shaped display panel provided by the embodiment of the invention, the special-shaped display panel comprises a fan-out area and a binding area for binding a driving chip, the boundary of the special-shaped display area adjacent to the binding area is in an arc shape, the fan-out area comprises a plurality of fan-out leads, the binding area comprises an input pad area and an output pad area, the output pad area comprises a first sub-pad area and second sub-pad areas positioned on two sides of the first sub-pad area, the output pad area comprises a first pad and a second pad, the first pad is positioned in the first sub-pad area, the second pad is positioned in the second sub-pad area, the second pads are obliquely arranged from two sides of the first sub-pad area to one side close to the special-shaped display area, the sizes of frames on two sides of the fan-out area can be well compressed, the performance and the size of each element on the lower frame can be kept, so that the space occupied by the lower frame of the display panel for displaying special-shaped images is reduced, and the special-shaped display panel comprising the special-shaped display area is ensured to realize the required appearance, and the requirement of customers is met.
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 structural diagram of a special-shaped display panel provided in the prior art;
FIG. 2 is a schematic diagram of a planar structure of a driving chip in a special-shaped display panel provided in the prior art;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 4 is a schematic plane structure diagram of a specially-shaped display panel according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of the structure at B in FIG. 4;
FIG. 6 is a schematic diagram of a planar structure of a driving chip in an irregular-shaped display panel according to an embodiment of the present invention;
FIG. 7 is a schematic plane view of a driving chip in another special-shaped display panel according to the present invention;
FIG. 8 is a schematic plane view of a driving chip in another special-shaped display panel according to the present invention;
FIG. 9 is a schematic diagram of a planar structure of a driving chip in a special-shaped display panel according to another embodiment of the present invention;
FIG. 10 is a schematic diagram of a planar structure for bonding pads of a flexible circuit board in a special-shaped display panel according to the present invention;
FIG. 11 is a schematic plan view of a flexible circuit board corresponding to the bonding pads of the flexible circuit board of FIG. 10;
FIG. 12 is a schematic diagram of a planar structure for bonding pads of a flexible circuit board in another special-shaped display panel provided by the present invention;
FIG. 13 is a schematic diagram of a planar structure of a flexible circuit board corresponding to the bonding pads of the flexible circuit board of FIG. 12;
FIG. 14 is a schematic diagram of a planar structure for bonding pads of a flexible circuit board in another special-shaped display panel according to the present invention;
FIG. 15 is a schematic plan view of a flexible circuit board corresponding to the bonding pad of the flexible circuit board of FIG. 14;
FIG. 16 is a schematic diagram of a plane structure of a bonding area of another special-shaped display panel according to an embodiment of the present invention;
FIG. 17 is a schematic diagram of a plane structure of a bonding area of another special-shaped display panel according to an embodiment of the present invention;
fig. 18 is a schematic diagram of an irregular display device provided in an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of an irregular display panel provided in the prior art, fig. 2 is a schematic plan structural diagram of a driving chip in the irregular display panel provided in the prior art, and fig. 3 is an enlarged structural diagram at a point a in fig. 1.
In the irregular-shaped display panel 100 'in the prior art, as shown in fig. 1 to 3, the driving chip 400' is bound at the lower border, i.e., the lower portion of the irregular-shaped display area 110 'in the non-display area 120', the boundary 130 'of the irregular-shaped display area 110' adjacent to the binding area 40 'is arc-shaped, i.e., along the second direction, the outer contour line of the irregular-shaped display area 110' adjacent to the binding area 40 'is arc-shaped, and the fan-out area 303' in the non-display area 120 'is partially arranged around the boundary 130' of the irregular-shaped display area.
In a direction perpendicular to a plane in which the irregular-shaped display panel 100 'is located, the driving chip 400' has a rectangular shape in a plan view, the driving chip 400 'has a length L1, the driving chip 400' has a width W1, and a column of external connection terminals is formed in the vicinity of each of parallel first and second edges of the rectangular shape, specifically, a column 410 'serving as an input terminal and a column 420' serving as an output terminal are included, the column 410 'of the input terminal and the column 420' of the output terminal are arranged in parallel, the column 410 'of the input terminal includes a plurality of input terminals 411', the plurality of input terminals 411 'are arranged side by side in an extending direction of a long side of the driving chip 400', and the column 420 'of the output terminal includes a plurality of output terminals 421', and the plurality of output terminals 421 'are arranged side by side in an extending direction of the long side of the driving chip 400'. The signal lines 22 'in the irregular-shaped display area 110' are electrically connected with the output terminals 421 'in the column 420' of the output terminals on the driver chip 400 'in a one-to-one correspondence manner through the fan-out leads 30311' located in the fan-out area 303', because the width of the area occupied by all the signal lines 22' is greater than the length L1 of the driver chip 400', and all the fan-out leads 30311' used for connection are electrically insulated from each other (i.e., all the fan-out leads have a certain gap from each other), the fan-out leads 30311 'need to be arranged in a bent manner relative to the signal lines 22' (i.e., the fan-out leads are in a zigzag manner relative to the signal lines) to electrically connect the signal lines 22 'to the corresponding signal terminals of the driver chip 400'. The number of the signal lines 22 'is larger, and therefore, the number of the fan-out leads 30311' is larger, and the width of the driving chip in the second direction also affects the size of the lower frame in the second direction.
In the special-shaped display panel, the boundary of the special-shaped display region 110 'adjacent to the binding region 40' is in an arc shape, and the length of the bent portion of the fan-out lead 30311 'far from the driving chip 400' is long, so that the plurality of fan-out leads 30311 'in the fan-out region 303' are difficult to compress, therefore, the frame distance M occupied by the fan-out leads 30311 'at two sides of the fan-out region 303' is large, and M can be regarded as the width from the boundary 130 'of the special-shaped display region to the edge of the fan-out region 303', which results in a large bevel edge design of the special-shaped display panel 100', and thus the space occupied by the fan-out region 303 adjacent to the binding region 40' at the lower frame is large, and the shape is a "pseudo-pure circle", for example, a perfect circle shape cannot be realized, and thus cannot meet the requirements of customers.
Accordingly, the present invention provides a special-shaped display panel and a special-shaped display device, so as to overcome the above problems in the prior art, and in order to make the objects, technical solutions and advantages of the present invention clearer, specific embodiments of the special-shaped display panel and the special-shaped display device provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments described below are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict between the present invention.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
Fig. 4 is a schematic plan view of an irregular display panel according to an embodiment of the present invention, and fig. 5 is an enlarged schematic structural diagram at B in fig. 4.
As shown in fig. 4 and 5, an embodiment of the invention provides an irregular display panel 100 including an irregular display area 110 and a non-display area 120 disposed around the irregular display area 110, the irregular display area 110 including a plurality of scanning signal lines 21 extending in a first direction and a plurality of data signal lines 22 extending in a second direction, the plurality of scanning signal lines 21 and the plurality of data signal lines 22 crossing to define a plurality of sub-pixels P; wherein the first direction and the second direction intersect; the non-display area 120 includes a fan-out area 303 and a bonding area 40, a boundary of the special-shaped display area 110 closest to the bonding area 40 is arc-shaped along the second direction, a plurality of fan-out leads 30311 are located at the fan-out area 303, the driver ic 400 is bonded to the bonding area 40, the bonding area 40 includes an input pad area 610 and an output pad area 620, the input pad area 610 includes a plurality of input pads 611, and the plurality of input pads 611 are used for electrically connecting with signal pins (not shown) corresponding to the flexible circuit board 700 to provide input signals for the driver ic 400; the output pad region 620 includes a plurality of output pads 621, the plurality of output pads 621 are arranged in at least two rows, and two adjacent rows of output pads 621 are arranged in a staggered manner, the plurality of output pads 621 are respectively electrically connected to the plurality of corresponding fan-out leads 30311, the plurality of fan-out leads 30311 are respectively electrically connected to the plurality of corresponding signal lines 22, for example, one signal line may be electrically connected to one fan-out lead 30311, or the plurality of signal lines may be electrically connected to one sector lead 30311 through the demultiplexer assembly Demux; the plurality of input pads 611 are electrically connected to corresponding signal pins on the flexible circuit board 700; the output pad area 620 includes a first sub-pad area 6201 and second sub-pad areas 6202 located at both sides of the first sub-pad area 6201, the output pad includes a first pad 62101 and a second pad 62102, the first pad 62101 is located at the first sub-pad area 6201, the second pad 62102 is located at the second sub-pad area 6202, and the plurality of second pads 62102 are arranged obliquely from both sides of the first sub-pad area 6201 to a side close to the special-shaped display area 110.
Specifically, the special-shaped display panel may be a liquid crystal display panel or an organic light emitting display panel, which is not limited herein. Generally, the bonding area 40 of the driving chip 400 is disposed at a lower border of the non-display area 120 for bonding the driving chip.
According to the special-shaped display panel and the special-shaped display device provided by the invention, the boundary of the special-shaped display area adjacent to the binding area is in an arc shape, the special-shaped display panel comprises the fan-out area and the binding area for binding the driving chip, the fan-out area comprises the plurality of fan-out leads, the layout of the plurality of output pads in the binding area is adjusted, the output pad area comprises the first sub-pad area and the second sub-pad area positioned on two sides of the first sub-pad area, the output pads comprise the first pad and the second pad, the first pad is positioned in the first sub-pad area, the second pad is positioned in the second sub-pad area, and the plurality of second pads are obliquely arranged from two sides of the first sub-pad area to one side close to the special-shaped display area.
Optionally, in the special-shaped display panel including the special-shaped display area provided in the embodiment of the present invention, an outer contour of the special-shaped display area 110 may be a perfect circle; the non-display area 120 may approximate a circular shape. The requirements of customers for using the special-shaped display panel for the special-shaped display device are favorably met.
Fig. 6 is a schematic plane structure diagram of a driving chip in the special-shaped display panel provided in the embodiment of the present invention. As shown in figure 6 of the drawings,
the above-mentioned special-shaped display panel 100 further includes a driving chip 400, the driving chip 400 is overlaid on the bonding region 40, the driving chip 400 includes two opposite long sides (001 and 002) and two opposite short sides (003 and 004), the two long sides include a first long side 001 and a second long side 002, the first long side 001 is located on one side of the second long side 002 close to the special-shaped display region 110, a plurality of output terminals 421 and a plurality of input terminals 411 are correspondingly disposed on the driving chip 400, the driving chip 400 includes an output terminal area 420 and an input terminal area 410, the output terminal area 420 includes a plurality of output terminals 421, the input terminal area 410 includes a plurality of input terminals 411, the input terminal area 410 includes a first sub-input terminal area 4201 and a second sub-input terminal area 4202 located on two sides of the first sub-input terminal area 4201, the output terminals 421 include a first terminal 42101 and a second terminal 42102, the first terminal 42101 is located on the first sub-input terminal area 4201, the second terminal 42102 is located on the first sub-input terminal area 4201, the first terminal area 42101 is correspondingly soldered to the special-shaped display panel 100, the first terminal area 42102 is located on the second terminal area 42078 correspondingly soldered to the special-shaped display panel, the bonding pad 8912, the special-shaped display panel 100 is connected to the special-shaped display panel 100, and the bonding pad 897 is connected to the special-shaped display panel 100 through the bonding pad, and the bonding pad 898, and the bonding pad 897, for example, the special-shaped display panel, and the special-shaped display panel 100.
Alternatively, the output terminals 421 and the input terminals 411 are both bar-shaped, and the long side of the bar shape of each output terminal 421 is parallel to the short side edge (003, 004) of the driver chip 400, and the long side of the bar shape of each input terminal 411 is parallel to the short side edge (003, 004) of the driver chip 400, that is, the length extending directions of the output terminals 421 are the same, the length extending directions of the input terminals 411 are the same, and alternatively, the output terminals 421 and the input terminals 411 have the same shape and size.
For the terminal design of the driving chip 400 installed in the special-shaped display panel 100, since the input terminals 411 on the driving chip 400 provide input signals, such as power signals, ASG (analog silicon gate) driving signals, voltage boosting signals, display communication interface signals, touch control communication interface signals, and the like, and the output terminals 421 on the driving chip 400 provide output signals, the output terminals 421 correspondingly connect the plurality of fan-out leads 30311, and it is necessary to apply corresponding data signals, such as data signals and/or touch control signals for driving display, to the signal lines 22 located in the special-shaped display area 110 one by one, the number of the output terminals 421 is significantly greater than the number of the input terminals 411. Accordingly, the number of output pads 621 on the shaped display panel 100 is significantly greater than the number of input pads 611. Optionally, the plurality of output terminals 421 are arranged in at least two rows, and the output terminals 421 in two adjacent rows are arranged in a staggered manner; since the size of the driver chip 400 is limited, in the case where the output terminals 421 on the output signal side are increased and cannot be arranged in a single row, the wiring connection design of the fan-out wire 30311 is facilitated by arranging the output terminals 421 in a staggered manner in a plurality of rows. This offset arrangement also avoids cross-over or signal interference between adjacent fan-out leads 30311. Similarly, the plurality of input terminals 411 may be arranged in a staggered arrangement in a plurality of rows.
Alternatively, as shown in fig. 4 to 5, the plurality of second pads 62102 on the shaped display panel 100 are arranged from both sides of the first sub-pad area 6201 to a side closer to the shaped display area 110, that is, in a direction from the first sub-pad area 6201 to the second sub-pad area 6202, the plurality of second pads 62102 are arranged at equal heights to a direction sequentially closer to the shaped display area, that is, the plurality of second pads 62102 in the same row have equal or equal height difference between two adjacent second pads. Therefore, the output pad area 620 formed by the first sub-pad area 6201 and the second sub-pad area 6202 located at two sides of the first sub-pad area 6201 is integrally in an inverted trapezoid shape and an arc shape, or further is in an arc shape matched with a circular display, so that the arc-shaped boundary 130 matched with the special-shaped display area of the special-shaped display panel 100 is realized, the length of the fan-out lead 30311 farthest from the driver chip 400 is favorably shortened, the size of the frame at two sides of the fan-out area 303 is conveniently compressed, the frame distance N occupied by the fan-out lead 30311 located at two sides of the fan-out area 303 is reduced compared with the original distance M, and N can be regarded as the width from the boundary 130 of the special-shaped display area to the edge of the fan-out area 303 in the embodiment of the present invention, so that the special-shaped display panel 100 has a relatively smaller lower frame, and the special-shaped display panel is ensured to realize a required shape so as to meet the requirements of customers.
Alternatively, as shown in fig. 5, fig. 5 relates to a plurality of signal lines, specifically, the signal lines may include data signal lines or touch signal lines, only a part of the signal lines are drawn in the drawing, and actually, the embodiment of the present invention further includes a plurality of signal lines, and the drawing only illustrates a part of the signal lines for clarity. The fan-out area 303 in the embodiment of the present invention includes a first sub fan-out area 3031 and second sub fan-out areas 3032 located at two sides of the first sub fan-out area, the first sub fan-out area 3031 includes a plurality of first fan-out leads, the second sub fan-out area 3032 includes a plurality of second fan-out leads, the first fan-out leads are electrically connected with the first pad 62101, and the second fan-out leads are electrically connected with the second pad 62102; the second fan-out leads are positioned in the second sub fan-out region 3032, are sequentially arranged along the first direction, each second fan-out lead comprises at least one inflection point 3040, each second fan-out lead comprises a linear part extending along the long side direction of the second bonding pad 62102 and an oblique line part extending away from the first sub fan-out region 6201, and the intersection point of the linear part and the oblique line part is the inflection point 3040; in the direction from the first sub-fan-out area 6201 to the second sub-fan-out area 6202, a plurality of inflection points 3040 are also designed around the boundary 130 of the special-shaped display area to compress the frames on both sides of the fan-out area.
Optionally, in the above-mentioned special-shaped display panel 100, the first sub-pad area 6201 and the second sub-pad area 6202 in the output pad area 620 may be continuously or discontinuously disposed, and when the first sub-pad area 6201 and the second sub-pad area 6202 are discontinuously disposed, the first sub-pad area 6201 may sink to a position close to the second long side 002 of the driver chip relative to the second sub-pad area 6202, so as to reduce the length difference of the fan-out leads 30311 in the fan-out area 303, and reduce the length difference between the fan-out leads 30311, which is beneficial to balancing the load difference of each fan-out lead, and implement balanced signal transmission.
Alternatively, fig. 7 is a schematic plane structure diagram of a driver chip in another special-shaped display panel provided by the present invention, and fig. 8 is a schematic plane structure diagram of a driver chip in another special-shaped display panel provided by the present invention, as shown in fig. 7-8, the shape of the driver chip 400 in the embodiment of the present invention may be a rectangular design or a non-rectangular design, when the shape of the driver chip 400 is designed to be a non-rectangular design, the driver chip 400 may have an opening structure 800 recessed toward the inside of the driver chip 400 along the first long side 002, wherein the opening structure 800 recessed toward the inside of the driver chip 400 is disposed adjacent to the arc-shaped boundary 130 of the special-shaped display region, when the driver chip 400 adopts such a design that the edge of the first long side is recessed, the corresponding signal line in the first sub-terminal region 4201 does not need to be provided with an excessive special-shaped pull line in the non-display region, and meanwhile, the width of the lower frame of the display panel 100 in the first direction may not be limited by the size of the first long side 001.
Optionally, as shown in fig. 8, the driving chip 400 includes an arc-shaped protrusion structure 900 disposed on the second long edge 002 and protruding outward from the driving chip 400, the arc-shaped protrusion structure 900 is located on a side of the driving chip away from the special-shaped display area 110, and the shape of the arc-shaped boundary 130 of the special-shaped display area can be matched by using a non-rectangular arrangement manner, so as to reduce the size of the lower frame of the special-shaped display panel 100.
Alternatively, in the second direction, the input terminal area 410 and the first sub-terminal area 4201 are oppositely disposed, and the input terminal area 410 is located on one side of the first sub-terminal area 4201 close to the second long side 002 of the driver chip 400, and the plurality of first terminals 42101 and the plurality of input terminals 411 are arranged in the first direction.
Fig. 9 is a schematic diagram of a plane structure of a driver chip in a further special-shaped display panel provided by the present invention, and as shown in fig. 9, in the second direction, the input terminal area 410 is located at corner areas on two sides of the driver chip 400, for example, a lower left corner and a lower right corner, and in the first direction, the input terminal area 410 is located at two sides of the first sub-terminal area 4201, and at this time, the input terminal area 410 is located by using an area formed between the second sub-terminal area 4202 and a short side of the driver chip 40 and a second long side 002 of the driver chip 40, and with such an arrangement, even if the first sub-terminal area 4201 is sunk to be close to an edge of the second long side 002 of the driver chip 400, there is enough space for placing enough input terminals 411, and optionally, as shown in fig. 9, the input terminal area 410 includes a third sub-terminal area 4101 on the left side and a fourth sub-terminal area 4102 on the right side. By disposing the input terminal sub-regions 410 at the corner regions on both sides of the driving chip 400, the space occupied by the input terminal sub-regions 410 in the second direction can be reduced compared to the case where the input terminal sub-regions 410 are located on the side of the first sub-terminal region 4201 away from the special-shaped display region 110, and the lower frame can be further reduced without changing the size of the driving chip. Fig. 10 is a schematic plane structure diagram for bonding a flexible circuit board pad in a special-shaped display panel according to the present invention, and fig. 11 is a schematic plane structure diagram of a flexible circuit board corresponding to the flexible circuit board pad in fig. 10; fig. 12 is a schematic plane structure diagram of another special-shaped display panel for bonding a flexible circuit board pad provided by the invention, and fig. 13 is a schematic plane structure diagram of a flexible circuit board corresponding to the flexible circuit board pad in fig. 12.
As shown in fig. 10 to 13, the non-display 120 in the special-shaped display panel provided by the present invention includes two flexible circuit board binding pads (510, 520), the two flexible circuit board binding pads (510, 520) are respectively disposed on two opposite sides of the driver chip, and a connection trace SX is disposed between the binding pad of the driver chip and the flexible circuit board binding pad 510 for implementing signal transmission between the flexible circuit board to be bound and the driver chip.
Further, the flexible circuit board 700 is a Y-type flexible circuit board, which includes a main body section 710, and a first connection section 711 and a second connection section 712 respectively located at two opposite sides of the main body section, wherein the first connection section 711 and the second connection section 712 are respectively and correspondingly connected to the bonding pads (510, 520) of the flexible circuit board. Optionally, the first connecting section 711 and the second connecting section 712 may be disposed horizontally along the first direction or disposed vertically along the second direction, or the first connecting section 711 and the second connecting section 712 are also adjusted to be disposed in an inclined manner as needed, so as to reduce an area occupied by a lower frame of the special-shaped display panel on the premise of ensuring performance and size of the components.
Fig. 14 is a schematic plane structure diagram of a special-shaped display panel for bonding pads of a flexible circuit board according to another embodiment of the present invention, and fig. 15 is a schematic plane structure diagram of a flexible circuit board corresponding to the pads of the flexible circuit board in fig. 14; as shown in fig. 14 and 15, the non-display 120 in the special-shaped display panel provided by the present invention includes two flexible circuit board bonding pads (510, 520), the two flexible circuit board bonding pads (510, 520) are disposed on opposite sides of the driver chip 400, the flexible circuit board 700 is located on a side of the driver chip 400 away from the special-shaped display area 110, a connection trace SX is disposed between the bonding pad 611 of the driver chip and the flexible circuit board bonding pad 510 for implementing signal transmission between the flexible circuit board to be bonded and the driver chip, when a side of the driver chip 400 adjacent to the flexible circuit board 700 is a straight edge, the first connection section 711 and the second connection section 712 on the flexible circuit board are bonded and connected with the corresponding flexible circuit board bonding pads (510, 520), and the flexible circuit board 700 can be bent along the rectangular edge of the driver chip to the back of the special-shaped display panel 100 to match the design of the circular watch.
Further, when the second long side 002 of the driver chip 400 is provided with the arc-shaped protrusion structure, the input pad area 611 may be disposed at two opposite sides of the arc-shaped driver chip 400, and the corresponding flexible circuit board may also be a Y-shaped FPC, i.e. a hollow area is disposed between two adjacent connection sections, which is not only beneficial for connecting the SX wires to the connection sections of the opposite flexible circuit board, but also beneficial for bending the flexible circuit board to the back of the special-shaped display panel 100 along the arc-shaped edge of the driver chip, thereby reducing the size of the lower frame of the special-shaped display panel to a certain extent.
Fig. 16 is a schematic plane structure diagram of a binding region of another specially-shaped display panel provided in an embodiment of the present invention, and fig. 17 is a schematic plane structure diagram of a binding region of another specially-shaped display panel provided in an embodiment of the present invention.
As shown in fig. 16 and 17, when the driver chip is rectangular, the arrangement of the plurality of output pads in the output pad region may be W-shaped in the first direction, and the arrangement of the corresponding output terminals on the driver chip may also be W-shaped, at this time, the arrangement of the output pads at two sides of the output pad region still faces to one side close to the special-shaped display region, the output pad near the center of the output pad region has a protrusion facing to the special-shaped display region, and the shape of the protrusion may be circular arc, triangle, or polygon, which is not limited herein.
Further, in the second direction, the plurality of input pads 611 are disposed between the output pad region 620 and an edge of the side of the binding region 40 away from the shaped display region boundary 130. By adopting the setting mode, on one hand, the output bonding pads positioned at two sides of the binding area can be closer to the special-shaped display area, the frame space occupied by two sides of the fan-out area is compressed, and meanwhile, on the premise of not changing the size of the driving chip, a plurality of input bonding pads can be skillfully arranged between the bulges of the plurality of output bonding pads 621 distributed in the W shape and the edge of the binding area 40, which is far away from one side of the special-shaped display area boundary 130, so that the space of the binding area covered by the driving chip is fully utilized.
Optionally, the bonding region in the embodiment of the present invention further includes a test circuit (not shown), where the test circuit includes a plurality of electrically connected gated thin film transistors, gates of the gated thin film transistors are connected to a switch control signal line, sources of the gated thin film transistors are connected to a reference voltage line, and drains of the gated thin film transistors are connected to the output pad; the test circuit can be arranged between the first sub-pad area and the edge of the binding area far away from one side of the special-shaped display area, namely the test circuit is placed in a space of a region, shielded by the driving chip, of the lower frame, signal test is carried out before the driving chip is bound on the special-shaped display panel, and then the driving chip is bound after the testing is qualified. The area where the test circuit is located can be shielded by the welded driving chip, so that the functions of all elements arranged at the lower frame cannot be influenced. Based on the same inventive concept, an embodiment of the present invention further provides an irregular-shaped display device, for example, a smart watch as shown in fig. 18, including the irregular-shaped display panel provided in the embodiment of the present invention. Other essential components of the special-shaped display device are understood by those skilled in the art, and are not described in detail herein, and should not be construed as limiting the present invention. The implementation of the special-shaped display device can be seen in the above embodiment of the special-shaped display panel, and repeated descriptions are omitted.
As can be seen from the above embodiments, the embodiments of the present invention have the following beneficial effects:
in the special-shaped display panel provided by the embodiment of the invention, the special-shaped display panel comprises a fan-out area and a binding area for binding a driving chip, the boundary of the special-shaped display area adjacent to the binding area is in an arc shape, the binding area comprises an input pad area and an output pad area, the fan-out area comprises a plurality of fan-out leads, the output pad area comprises a first sub-pad area and second sub-pad areas positioned on two sides of the first sub-pad area, the output pad comprises a first pad and a second pad, the first pad is positioned in the first sub-pad area, the second pad is positioned in the second sub-pad area, the plurality of second pads are obliquely arranged from two sides of the first sub-pad area to one side close to the special-shaped display area, the sizes of frames on two sides of the fan-out area can be well compressed, the performance and the size of each element on the lower frame can be kept, so that the space occupied by the lower frame of the display panel for displaying special-shaped images is reduced, and the special-shaped display panel comprising the special-shaped display area is ensured to realize the required appearance, and meet the requirements of customers.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced, or some of the technical features in the embodiments may be combined with each other; and the modifications, the substitutions or the combinations do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A contoured display panel, comprising:
the display device comprises a special-shaped display area and a non-display area arranged around the special-shaped display area, wherein the special-shaped display area comprises a plurality of signal lines which are arranged along a first direction and extend along a second direction, and the first direction and the second direction are intersected;
the non-display area comprises a fan-out area and a binding area, the boundary of the special-shaped display area adjacent to the binding area is arc-shaped, the fan-out area comprises a plurality of fan-out leads, the binding area comprises an output pad area and an input pad area, the output pad area comprises a plurality of output pads, the output pads are arranged into at least two rows, the input pad area comprises a plurality of input pads, the output pads are respectively and electrically connected with the corresponding fan-out leads, the fan-out leads are respectively and electrically connected with the corresponding signal lines, and the input pads are respectively and electrically connected with the corresponding signal leads on the flexible circuit board;
the output pad area comprises a first sub-pad area and second sub-pad areas positioned on two sides of the first sub-pad area, the output pad comprises a first pad and a second pad, the first pad is positioned in the first sub-pad area, the second pad is positioned in the second sub-pad area, and the second pads are obliquely arranged from two sides of the first sub-pad area to one side close to the special-shaped display area;
the shaped display panel further comprises:
the driving chip covers the binding area, the driving chip comprises two opposite long sides and two opposite short sides, the driving chip comprises a plurality of output terminals and a plurality of input terminals, the output terminals comprise first terminals and second terminals, the first terminals are correspondingly welded with the first bonding pads, the second terminals are correspondingly welded with the second bonding pads, and the input terminals are correspondingly welded with the input bonding pads; the second terminals are obliquely arranged from two sides of the first terminal to one side close to the special-shaped display area, corner areas are formed on two sides of the first terminal, and the input terminal is arranged in the corner areas;
or in the first direction, a plurality of output pads in the output pad region are integrally arranged in a W shape, in the second direction, a plurality of input pads are arranged between the output pad region and the edge of the binding region on the side far away from the special-shaped display region, and along the first direction, the output pad region includes a middle region and edge regions located on two sides of the middle region, and along the second direction, the width of the middle region is smaller than that of the edge regions, so that the output pad region forms a recessed region recessed back to the display region, and the plurality of input pads are located in the recessed region.
2. The shaped display panel according to claim 1,
the second pads are arranged from two sides of the first sub-pad area to one side close to the special-shaped display area gradually.
3. The shaped display panel according to claim 1,
in the second direction, the input pad area is positioned on one side of the second sub-pad area far away from the special-shaped display area;
and, in the first direction, the input pad region is located at both sides of the first sub-pad region.
4. The shaped display panel according to claim 3,
the non-display area comprises two flexible circuit board binding pads, the two flexible circuit board binding pads are respectively arranged on two opposite sides of the driving chip, and connecting wires are arranged between the driving chip and the flexible circuit board binding pads.
5. The shaped display panel according to claim 4,
the flexible circuit board is a Y-shaped flexible circuit board, the Y-shaped flexible circuit board comprises a main body section, a first connecting section and a second connecting section, the first connecting section and the second connecting section are respectively located on two opposite sides of the main body section, and the first connecting section and the second connecting section are respectively and correspondingly connected with a binding pad of the flexible circuit board.
6. The shaped display panel according to claim 1,
the fan-out area comprises a first sub fan-out area and second sub fan-out areas positioned on two sides of the first sub fan-out area, the first sub fan-out area comprises a plurality of first fan-out leads, the second sub fan-out area comprises a plurality of second fan-out leads, the first fan-out leads are electrically connected with first bonding pads, and the second fan-out leads are electrically connected with second bonding pads;
the second fan-out leads are arranged in the second sub fan-out area in sequence along the first direction and comprise at least one inflection point, each second fan-out lead comprises a straight line part extending along the long side direction of the second pad and an oblique line part extending away from the first sub fan-out area, and the intersection point of the straight line part and the oblique line part is the inflection point;
and the plurality of inflection points are arranged near the first sub fan-out area, and are gradually arranged towards one side close to the special-shaped display area in the direction from the first sub fan-out area to the second sub fan-out area.
7. The shaped display panel according to any of claims 1 to 6, wherein the outer contour of the shaped display area is a perfect circle.
8. A shaped display device comprising the shaped display panel according to any of claims 1-7.
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| CN112419903B (en) * | 2020-11-30 | 2022-05-10 | 厦门天马微电子有限公司 | Display panel and display device |
| CN112867244B (en) * | 2021-02-26 | 2022-07-15 | 厦门天马微电子有限公司 | Display panel and display device |
| CN113126375B (en) * | 2021-04-29 | 2022-08-30 | 厦门天马微电子有限公司 | Display module and display device |
| CN115699136A (en) * | 2021-05-11 | 2023-02-03 | 京东方科技集团股份有限公司 | Touch panel, preparation method thereof and display device |
| CN113341600B (en) * | 2021-05-25 | 2022-05-06 | 厦门天马微电子有限公司 | Display panel and display device |
| CN113299218B (en) * | 2021-06-01 | 2024-03-29 | 厦门天马微电子有限公司 | Display panel and display device |
| CN114822260B (en) * | 2022-05-09 | 2023-06-30 | 武汉华星光电技术有限公司 | Display panel and electronic equipment |
| CN114842751B (en) * | 2022-05-18 | 2024-01-02 | 广州华星光电半导体显示技术有限公司 | Display device and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3199570B2 (en) * | 1994-05-31 | 2001-08-20 | 京セラ株式会社 | Display device |
| JP2002032031A (en) * | 2000-05-12 | 2002-01-31 | Seiko Epson Corp | Method for manufacturing electro-optic device, method for connecting terminal, electro-optic device and electronic apparatus |
| JP2006243008A (en) * | 2005-02-28 | 2006-09-14 | Optrex Corp | Display panel |
| KR102276995B1 (en) * | 2015-02-12 | 2021-07-21 | 삼성디스플레이 주식회사 | Nonsquare display |
| JP6130613B2 (en) * | 2015-03-10 | 2017-05-17 | シャープ株式会社 | Display device |
| CN107533828B (en) * | 2015-04-07 | 2020-05-05 | 夏普株式会社 | Active matrix display device and method of driving the same |
| CN204855999U (en) * | 2015-08-26 | 2015-12-09 | 昆山龙腾光电有限公司 | Dysmorphism display device |
| US10162311B2 (en) * | 2015-12-15 | 2018-12-25 | Qualcomm Incorporated | Display panel with minimum borders |
| CN107305757A (en) * | 2016-04-21 | 2017-10-31 | 瀚宇彩晶股份有限公司 | Display device |
| CN109994042A (en) * | 2019-04-11 | 2019-07-09 | 武汉华星光电技术有限公司 | Driving chip and display panel |
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