CN115188278A

CN115188278A - Display module assembly and display device

Info

Publication number: CN115188278A
Application number: CN202210909642.8A
Authority: CN
Inventors: 高亮; 黄允晖; 李传勇; 都阿娟; 包文强
Original assignee: BOE Technology Group Co Ltd; Chongqing BOE Display Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chongqing BOE Display Technology Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-10-14
Anticipated expiration: 2042-07-29
Also published as: CN115188278B

Abstract

The embodiment of the disclosure provides a display module and a display device. Display module assembly includes display panel, flexonics board and drive circuit board, display panel includes long limit and minor face, long limit with minor face mutually perpendicular, the flexonics board includes first connecting portion and second connecting portion, first connecting portion with display panel connects, the second connecting portion with drive circuit board connects, the direction that sets up of second connecting portion is on a parallel with the minor face. According to the technical scheme, the torsion force received by the flexible connecting plate due to different deformation can be prevented, the flexible connecting plate is prevented from falling off, bright lines are avoided, display is avoided, the chip is prevented from being broken, the failure risk of the product is reduced, and the reliability and the product quality of the display module are improved.

Description

Display module assembly and display device

Technical Field

The disclosure relates to the technical field of display, in particular to a display module and a display device.

Background

Organic Light-Emitting diodes (OLEDs) are a display illumination technology that has been gradually developed in recent years, and particularly in the display industry, OLED display is considered to have a wide application prospect because of its advantages of high response, high contrast, flexibility, and the like.

In the field of vehicle-mounted display, the OLED display mostly adopts an arc design. The arc-shaped OLED display product is easy to generate the defects of falling off (peeling), bright lines, non-display, chip fracture and the like in the transferring and reliability processes.

Disclosure of Invention

The embodiment of the disclosure provides a display module and a display device, so as to solve or alleviate one or more technical problems in the prior art.

As a first aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a display module, including a display panel, a flexible connecting plate and a driving circuit board, the display panel includes a long side and a short side, the long side and the short side are perpendicular to each other, the flexible connecting plate includes a first connecting portion and a second connecting portion, the first connecting portion is connected with the display panel, the second connecting portion is connected with the driving circuit board, and a setting direction of the second connecting portion is parallel to the short side.

In some embodiments, the display panel is curved along the long side.

In some embodiments of the present invention, the,

the display panel comprises a display area, wherein the short edges comprise a first short edge and a second short edge which are positioned at two opposite sides of the display area, the display panel also comprises a first frame area positioned between the first short edge and the display area, and a second frame area positioned between the second short edge and the display area, the first frame area is provided with a first binding area, and the second frame area is provided with a second binding area;

the flexible connecting plate comprises a first on-film chip and a second on-film chip, the first connecting part comprises a first sub-binding part positioned on the first on-film chip and a second sub-binding part positioned on the second on-film chip, the first sub-binding part and the second sub-binding part are respectively bound and connected with a first binding area and a second binding area, and the setting directions of the first binding area and the second binding area are both parallel to the short edge;

the second connecting portion includes that the third that is located the chip on the first membrane binds the portion and is located the fourth that the chip on the second membrane binds the portion, and drive circuit board includes first drive circuit board and second drive circuit board, and the third binds the portion and the fourth binds the portion and binds with first drive circuit board and second drive circuit board respectively and be connected.

In some embodiments, the display region is provided with a plurality of gate lines and a plurality of data lines, the gate lines extend along a second direction, the data lines extend along a first direction, the plurality of gate lines and the plurality of data lines intersect with each other to define a plurality of pixel regions arranged in an array, the first direction is a direction in which the long side is located, and the second direction is a direction in which the short side is located;

the long limit is including being located the first long limit and the long limit of second of the relative both sides of display area, display panel is still including being located the third frame district between first long limit and the display area, and be located the fourth frame district between the long limit of second and the display area, the third frame district is provided with a plurality of first signal drive circuit, a plurality of first signal drive circuit correspond with multiseriate pixel region, the fourth frame district is provided with a plurality of second signal drive circuit, a plurality of second signal drive circuit correspond with multiseriate pixel region.

In some embodiments, at least one row of pixel regions corresponds to one first signal driving circuit and one second signal driving circuit, and in the first signal driving circuit and the second signal driving circuit corresponding to the same row of pixel regions, the first signal driving circuit is connected to the first bonding region through the first wire, the second signal driving circuit is connected to the second bonding region through the second wire, and the resistance of the first wire is the same as the resistance of the second wire.

In some embodiments, the first wire includes a first sub-wire segment and a second sub-wire segment, the second wire includes a third sub-wire segment and a fourth sub-wire segment, the first sub-wire segment and the third sub-wire segment extend along a first direction, the second sub-wire segment and the fourth sub-wire segment extend along a second direction, a length of the first sub-wire segment is smaller than a length of the third sub-wire segment, and a line width of the first sub-wire segment is smaller than a line width of the third sub-wire segment.

In some embodiments, a distance between the first signal driving circuit and the first bonding area is smaller than a distance between the second signal driving circuit and the second bonding area, and the first trace includes a meander curve segment for increasing a length of the trace.

In some embodiments, the signals transmitted by the first trace and the second trace include one of a trigger signal, a clock signal, and a power signal.

In some embodiments, the first and second on-film chips are bent toward the back side of the display panel, so that the first and second driving circuit boards are attached to the back side of the display panel.

In some embodiments, the display panel further comprises a flexible connecting circuit board, the flexible connecting circuit board is connected with the first driving circuit board and the second driving circuit board, and the flexible connecting circuit board is attached to the back side of the display panel along the curved shape of the display panel.

In some embodiments, the flexible connection board includes a chip on film and a flexible adapter circuit board, the long side is located on one side of the display area, the display panel further includes a frame area located between the long side and the display area, the frame area is provided with a binding area, the binding area is arranged along the long side direction, the first connection portion is located on the chip on film, the first connection portion is bound and connected with the binding area, the flexible adapter circuit board includes a first portion and a second portion, the first portion is arranged along the long side direction, the second portion is arranged along the short side direction, the first portion is connected with the chip on film, and the second connection portion is located on the second portion.

In some embodiments, the short sides include a first short side and a second short side located on opposite sides of the display region, the display panel further includes a first frame region located between the first short side and the display region, and a second frame region located between the second short side and the display region, the first frame region is provided with a plurality of first signal driving circuits, and the second frame region is provided with a plurality of second signal driving circuits. As a second aspect of the embodiments of the present disclosure, an embodiment of the present disclosure provides a display device including a display module in the embodiments of the present disclosure.

The technical scheme of this disclosed embodiment not only can satisfy the demand of on-vehicle demonstration field to the arc demonstration product, can prevent moreover that the flexonics board from because the torsion that the deformation difference received, avoiding the flexonics board appear coming off, bright line, not having and showing and chip fracture etc. are bad, reduce the product risk of inefficacy, improve display module's reliability and product quality.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present disclosure will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are not to be considered limiting of its scope.

FIG. 1 is a schematic structural diagram of an arc-shaped OLED display product before bending;

FIG. 2 is a schematic diagram of a display module according to an embodiment of the disclosure;

FIG. 3 is a schematic diagram illustrating a backside of a display module in accordance with an embodiment of the present disclosure;

FIG. 4 is another schematic view of a display module according to an embodiment of the disclosure;

FIG. 5 is another schematic view of a display module according to an embodiment of the disclosure;

FIG. 6 is another schematic view of a display module according to an embodiment of the present disclosure;

FIG. 7a is a schematic view of a display side of a display module according to another embodiment of the present disclosure before a chip on a film is bent;

FIG. 7b is a schematic view of the display module shown in FIG. 7a after the chip on the film is bent to the back side;

fig. 8 is another schematic view of a display module according to another embodiment of the disclosure.

Description of the reference numerals:

10. a display panel; 11. a display area; 111. a gate line; 112. a data line; 121. a first frame region; 122. a second frame region; 123. a third frame region; 124. a fourth bezel region; 20. a chip on film; 21. a first chip on film; 22. a second chip on film; 30. a drive circuit board; 31. a first drive circuit board; 32. a second drive circuit board; 40. a flexible connection circuit board; 41. a first signal driving circuit; 42. a second signal driving circuit; 51. a first wire; 52. a second routing; 60. a flexible connecting plate; 61. a first connection portion; 62. a second connecting portion; 70. a flexible switching circuit board; 71. a first portion; 72. a second portion.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, and the different embodiments may be combined in any way without conflict, without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Fig. 1 is a schematic structural diagram of an arc-shaped OLED display product before bending. The arc OLED display product adopts the arc cover plate, and the display module adopts the conventional process flow before the arc cover plate is attached. After the arc-shaped cover plate is attached, the form of a Chip On Film (COF) in the display module is changed. As shown in fig. 1, an upper side of the COF 20 is bound to the display panel 10, and a lower side of the COF 20 is bound to a rigid driving circuit board 30 such as a Printed Circuit Board (PCB). After the arc cover plate is attached, the display panel 10 may be bent along with the shape of the arc cover plate, and thus, the binding position of the COF 20 and the display panel 10 may also be bent along with the shape of the arc cover plate. And the driving circuit board 30 is rigid, so that the binding position of the COF 20 and the driving circuit board 30 is not bent. This causes a difference in the position of the COF 20 bonded to the display panel 10 and the position of the COF 20 bonded to the driving circuit board 30, that is, a difference in the upper and lower side deformations of the COF 20, and thus the COF is likely to be detached, bright, free from display, chip breakage, and other defects during transportation and reliability.

The embodiment of the present disclosure provides a display module, which includes a display panel 10, a flexible connection board 60, and a driving circuit board 30. The display panel 10 includes a long side and a short side, which are perpendicular to each other, and the size of the long side is larger than that of the short side. The flexible connection board includes a first connection portion and a second connection portion, the first connection portion is connected to the display panel 10, the second connection portion is connected to the driving circuit board 30, and a setting direction of the second connection portion is parallel to the short side.

Fig. 2 is a schematic view illustrating a display module according to an embodiment of the disclosure. As shown in fig. 2, the display panel 10 includes a long side 101 and a short side 102, the flexible connecting board 60 includes a first connecting portion 61 and a second connecting portion 62, the first connecting portion 61 is connected to the display panel 10, the second connecting portion 62 is connected to the driving circuit board 30, and the second connecting portion 62 is arranged in parallel with the short side 102.

It will be appreciated that for flexible display products, the display panel 10 is generally curved along the long side 101, for example, the long side 101 is curved or curved, and the display panel 10 remains straight along the short side 102. The driving circuit board 30 may be a rigid printed circuit board.

In the display module of the embodiment of the present disclosure, the second connecting portion 62 is connected to the driving circuit board 30, and the arrangement direction of the second connecting portion 62 is parallel to the short side 102. Because the display panel 10 is always kept in a linear state in the direction of the short side 102, the states of the second connecting portion 62 before and after being connected with the driving circuit board 30 are consistent, and the second connecting portion 62 cannot deform after being connected with the driving circuit board 30, so that the flexible connecting plate 60 can be prevented from bearing deformation torsion, the flexible circuit board 60 can be prevented from falling off, bright lines, display failure, chip fracture and other defects, the risk of product failure is reduced, and the reliability and the product quality of the display module are improved.

In one embodiment, as shown in fig. 2, the display panel 10 may be a flexible display panel, and the display panel 10 is curved along the long side 101. Illustratively, the long side 101 is an arc or curve.

Fig. 2 is a schematic diagram of the display side of the display module before the first chip on film and the second chip on film are bent. In one embodiment, as shown in fig. 2, the flexible web comprises a chip on film comprising a first chip on film 21 and a second chip on film 22. The display panel 10 may be a flexible display panel, for example. The display panel 10 is curved in the first direction X. The display panel 10 includes a display area 11, a first frame area 121, and a second frame area 122. The short sides 102 include a first short side and a second short side located on opposite sides of the display area 11, for example, the first short side is located on the left side of the display area 11, and the second short side is located on the right side of the display area 11. The first frame area 121 is located between the first short side and the display area 11, and the second frame area 122 is located between the second short side and the display area 11. The first frame region 121 is provided with a first binding region, and the second frame region 122 is provided with a second binding region. The first direction X is a long side direction, and the second direction Y is a short side direction.

The first connection portion 61 includes a first sub-bonding portion 61a located at the first chip on film 21, and a second sub-bonding portion 61b located at the second chip on film 22. The first sub-binding part 61a is bound and connected to the first binding region, and the second sub-binding part 61b is bound and connected to the second binding region 61b. The arrangement direction of the first and second binding regions is parallel to the short side 102.

The second connection part 62 includes a third sub-bonding part 62a at the first chip on film 21 and a fourth sub-bonding part 62b at the second chip on film 22. The driving circuit board 30 includes a first driving circuit board 31 and a second driving circuit board 32, the third sub-bonding portion 62a is bonded to the first driving circuit board 31, and the fourth sub-bonding portion 62b is bonded to the second driving circuit board 32.

In the display module, the first binding region and the second binding region of the display panel 10 are not in a bending state but in a planar state, when the first on-film chip 21 is bound and connected with the first binding region, the first on-film chip 21 does not generate bending deformation, and when the second on-film chip 22 is bound and connected with the second binding region, the second on-film chip 22 does not generate bending deformation; the third sub-bonding portion 62a is parallel to the short side 102, and after the first on-film chip 21 is bonded to the rigid first driving circuit board 31, the first on-film chip 21 will not be subjected to torsion due to different deformations at the two ends, and similarly, after the second on-film chip 22 is bonded to the rigid second driving circuit board 32, the second on-film chip 22 will not be subjected to torsion due to different deformations at the two ends.

Therefore, the technical scheme of this disclosure not only can satisfy the demand of on-vehicle demonstration field to the arc demonstration product, can prevent moreover that chip 21 on the first membrane and chip 22 on the second membrane from appearing droing, bright line, not having demonstration and chip fracture etc. are bad because the torsion that deformation difference received, avoiding the membrane chip, reduce the product risk of failure, improve display module's reliability and product quality.

The display module assembly of the embodiment of the disclosure can be applied to the field of vehicle-mounted display.

Exemplarily, the display panel 10 may be an OLED display panel.

The curved surface may be any curved surface such as an arc-shaped curved surface and a wavy curved surface, as long as the curved surface is along the long side direction.

Illustratively, the number of the first film-on-chip 21 and the second film-on-chip 22 may be set as desired, for example, in the embodiment of fig. 2, the number of the first film-on-chip 21 is two, and the number of the second film-on-chip 22 is two.

In one embodiment, the size of the display panel 10 in the first direction X is larger than the size in the second direction Y, which is a direction perpendicular to the first direction X. For example, the display panel 10 may have a rectangular shape, and thus, the display panel 10 has a curved shape in a long side direction. The display module accords with the watching habit of a user.

Illustratively, in the case where the number of the first chip on film 21 is at least two, each of the first chip on film 21 may be connected to the first driving circuit board 31. In the case where the number of the second chip on film 22 is at least two, each of the second chip on film 22 may be connected to the second driving circuit board 32.

Fig. 3 is a schematic backside view of a display module according to an embodiment of the disclosure. In one embodiment, as shown in fig. 3, the first chip on film 21 and the second chip on film 22 are both bent toward the back side of the display panel 10, so that the first driving circuit board 31 and the second driving circuit board 32 are both attached to the back side of the display panel 10.

In one embodiment, as shown in fig. 3, the display module may further include a flexible connection wiring board 40, and the flexible connection wiring board 40 connects the first driving circuit board 31 and the second driving circuit board 32. The flexible connection wiring board 40 is attached to the back side of the display panel 10 along the curved shape of the display panel 10. With such a structure, the first driving circuit board 31 and the second driving circuit board 32 can be connected into a whole through the flexible connecting circuit board 40, thereby realizing the overall control of the display module. Through the crooked shape laminating with flexible connection circuit board 40 along display panel 10 at the dorsal part of display panel 10, avoid flexible connection circuit board 40 to occupy other space, saved display module's space.

Fig. 4 is another schematic view of a display module according to an embodiment of the disclosure. For better explanation, the display panel 10 in fig. 4 is in a state before being bent. In one embodiment, as shown in fig. 4, the display region 11 is provided with a plurality of gate lines 111 and a plurality of data lines 112, the gate lines 111 extending in the second direction Y, and the data lines 112 extending in the first direction X. In this way, the image can be refreshed in the first direction X during a frame display, i.e. the data is refreshed in rows and columns during a frame display.

In one embodiment, as shown in fig. 4, a plurality of gate lines 111 and a plurality of data lines 112 cross each other to define a plurality of pixel regions arranged in an array. The long sides include a first long side and a second long side located on opposite sides of the display area 11, for example, the first long side is located on the upper side of the display area 11, and the second long side is located on the lower side of the display area 11. The display panel 10 may further include a third frame area 123, the third frame area 123 being located between the first long side and the display area 11. The third frame area 123 is provided with a plurality of first signal driving circuits 41, and the plurality of first signal driving circuits 41 correspond to the plurality of rows of pixel regions.

Illustratively, the pixel region may be provided with a pixel circuit whose operation requires one or more of various signals, such as an EM signal, a Reset (Reset) signal, a Gate signal (Gate), and the like. These signals need a signal driving circuit (GOA circuit) to output, for example, gate GOA can output Gate signals, reset GOA can output Reset signals, and EM GOA can output EM signal lights.

Illustratively, the first signal driving circuit 41 may be one of Gate GOA, reset GOA, and EM GOA.

By providing the first signal driving circuits 41 in the third frame area 123, the first signal driving circuits 41 can be arranged in the first direction X and coincide with the arrangement direction of the column pixels. This facilitates transmission of the driving signal output from the first signal driving circuit 41 to the corresponding pixel column, which is advantageous for wiring design and column driving.

Illustratively, the plurality of first signal driving circuits 41 may correspond to the plurality of columns of pixel regions one to one, that is, the plurality of first signal driving circuits 41 may correspond to the plurality of columns of pixels one to one. Thus, a signal output from one first signal driving circuit 41 controls one column of pixels, and single-sided one-by-one driving is realized.

In one embodiment, the first signal driving circuit 41 may be Gate GOA, and a plurality of the first signal driving circuits 41 may correspond to a plurality of columns of pixel regions one to one.

In one embodiment, the first signal driving circuit 41 may be an EM GOA or a Reset GOA. One first signal driving circuit 41 may correspond to one or at least two columns of pixel regions, that is, one first signal driving circuit 41 may correspond to one or at least two columns of pixels. Thus, the signal output from one first signal driving circuit 41 can control one or at least two rows of pixels, thereby realizing one-side one-to-one or one-to-two driving.

In one embodiment, the signals required for the first signal driving circuit 41 to operate include one or more of a trigger Signal (STV), a clock signal (CK), and power supply signals (e.g., VGH and VGL).

In one embodiment, the first signal driving circuit 41 may be connected to the first bonding region or the second bonding region, thereby connecting the first signal driving circuit 41 to the first chip on film 21 or the second chip on film 22. Thus, the first signal driving circuit 41 can acquire one or more of a trigger signal, a clock signal, and a power supply signal from the first chip on film 21 or the second chip on film 22.

Illustratively, the display region 11 may be divided into a left region and a right region, the first signal driving circuit 41 corresponding to the left region may be connected to the first chip on film 21, and the first signal driving circuit 41 corresponding to the right region may be connected to the second chip on film 22.

Fig. 5 is another schematic view of a display module according to an embodiment of the disclosure. In one embodiment, as shown in fig. 5, the display panel 10 may further include a fourth frame area 124, and the fourth frame area 124 is located between the second long side and the display area 11. Illustratively, the third frame area 123 may be located at an upper side of the display area 11, and the fourth frame area 124 may be located at a lower side of the display area 11. The fourth frame area 124 is provided with a plurality of second signal driving circuits 42, and the plurality of second signal driving circuits 42 correspond to the plurality of rows of pixel areas.

Illustratively, the second signal driving circuit 42 may be one of Gate GOA, reset GOA, and EM GOA.

Illustratively, the second signal driving circuit 42 and the first signal driving circuit 41 may be the same. For example, the first signal driving circuit 41 and the second signal driving circuit 42 may both be Gate GOAs.

Illustratively, the plurality of second signal driving circuits 42 may correspond to the plurality of columns of pixel regions one to one, that is, the plurality of second signal driving circuits 42 may correspond to the plurality of columns of pixels one to one. Thus, the second signal driving circuit 42 and the first signal driving circuit 41 cooperate to realize the double-sided one-to-one driving.

In one embodiment, the second signal driving circuit 42 may be Gate GOA, and a plurality of second signal driving circuits 42 may correspond to a plurality of columns of pixel regions one to one.

In one embodiment, the second signal driving circuit 42 may be an EM GOA or a Reset GOA. One second signal driving circuit 42 may correspond to one or at least two columns of pixel regions, that is, one second signal driving circuit 42 may correspond to one or at least two columns of pixels. Thus, the second signal driving circuit 42 and the first signal driving circuit 41 cooperate to realize dual-sided one-to-one or one-to-two driving.

In one embodiment, the signals required for the second signal driving circuit 42 to operate include one or more of a trigger Signal (STV), a clock signal (CK), and power supply signals (e.g., VGH and VGL).

In one embodiment, as shown in fig. 5, at least one column of pixel regions corresponds to one first signal driving circuit 41 and one second signal driving circuit 42. In the first signal driving circuit 41 and the second signal driving circuit 42 corresponding to the same column of pixel regions, the first signal driving circuit 41 is connected to the first bonding region through the first wire 51, the second signal driving circuit 42 is connected to the second bonding region through the second wire 52, and the resistance of the first wire 51 is the same as the resistance of the second wire 52. With such a structure, the one-to-one or one-to-two driving of the two sides of the pixel is realized. By setting the resistance of the first trace 51 to be the same as the resistance of the second trace 52, it can be ensured that the first signal driving circuit 41 and the second signal driving circuit 42 output driving signals synchronously, and the display effect is improved.

Exemplarily, the first signal driving circuit 41 and the second signal driving circuit 42 corresponding to the first column of pixels, and the corresponding first trace 51 and the second trace 52 are shown in fig. 5. Also shown in fig. 5 are a first signal driving circuit 41 and a second signal driving circuit 42 corresponding to the last column (nth column) of pixels, and a first wiring 51 and a second wiring 52 corresponding thereto. Thereby, a bilateral drive of the first column of pixels and a bilateral drive of the last column of pixels are achieved.

In one embodiment, the distance between the first signal driving circuit 41 and the first bonding region is smaller than the distance between the second signal driving circuit 42 and the second bonding region. Exemplarily, as shown in fig. 5, for the first column of pixels, the distance between the first signal driving circuit 41 and the first bonding area is much smaller than the distance between the second signal driving circuit 42 and the second bonding area, and therefore, the length of the first trace 51 is much smaller than the length of the second trace 52.

In one embodiment, the first trace 51 may include a first sub-line segment 511 and a second sub-line segment 512, and the second trace 52 includes a third sub-line segment 521 and a fourth sub-line segment 522. The first and third

sub-line segments

511 and 521 extend along the first direction X, and the second and fourth sub-line segments 512 and 522 extend along the second direction Y. The length of the first sub-line segment 511 is smaller than the length of the third sub-line segment 521, and the width of the first sub-line segment 522 is smaller than the width of the third sub-line segment 521.

It should be noted that the difference between the lengths of the first trace 51 and the second trace 52 is mainly caused by the difference between the lengths of the first sub-line segment 511 and the third sub-line segment 521, and the length of the first sub-line segment 511 is smaller than the length of the third sub-line segment 521. The width of the first sub-line segment 511 is set to be smaller than the width of the third sub-line segment 521, that is, the width of the third sub-line segment 521 is larger than the width of the first sub-line segment 511, so that the resistance of the third sub-line segment 521 can be reduced, which is beneficial to realizing that the resistance of the third sub-line segment 521 is the same as that of the first sub-line segment 511, and further, the resistances of the first routing line 51 and the second routing line 52 are the same.

Fig. 6 is another schematic view of a display module according to an embodiment of the disclosure. In an embodiment, as shown in fig. 6, a distance between the first signal driving circuit 41 and the first bonding area is smaller than a distance between the second signal driving circuit 42 and the second bonding area, and the first trace 51 may include a meander curve section 513 for increasing a length of the trace. As shown in fig. 5, the length of the first trace 51 can be increased, and the resistance of the first trace 51 is increased, which is beneficial to realize that the resistances of the first trace 51 and the second trace 52 are the same.

For example, the position of the bending curve section 513 may be set as required, for example, the bending curve section 513 may be disposed on a sub-line section of the first trace 51 extending along the first direction X, and may also be disposed on a sub-line section of the first trace 51 extending along the second direction Y.

It should be noted that, for the last row of pixels, the trace located at the lower side of the display area 11 may be the first trace 51, and the trace located at the upper side of the display area 11 may be the second trace 52.

In one embodiment, the signals transmitted by the first and

second traces

51 and 52 may include one or more of a trigger signal, a clock signal, and a power signal (e.g., VGH and VGL). Accordingly, the first chip on film 21 may supply a signal to the first signal driving circuit 41 through the first routing 51, and the second chip on film 22 may supply a signal to the second signal driving circuit 42 through the second routing 52.

In one embodiment, the display area is provided with a touch sensing trace and a touch driving trace, one of the touch sensing trace and the touch driving trace may extend along a first direction X, and the other may extend along a second direction Y. Thus, the touch function of the display panel can be realized.

Fig. 7a is a schematic view of a display side of a display module according to another embodiment of the disclosure before a chip on a film is bent, and fig. 7b is a schematic view of the display module shown in fig. 7a after the chip on the film is bent to a back side. In one embodiment, as shown in fig. 7a and 7b, the flexible web 60 includes a chip-on-film 20 and a flexible interposer board 70. The long side 101 is located on one side of the display area 11, for example, the long side 101 is located on the lower side of the display area 11. The display panel comprises a frame area between the long edge 101 and the display area 11, and the frame area is provided with a binding area which is arranged along the direction of the long edge 101. In fig. 7a, the bezel area is located at the lower side of the display area. The first connecting portion is located the on-film chip 20, and the on-film chip 20 is connected with the bonding region through the first connecting portion in a bonding manner.

The flexible interposer 70 includes a first portion 71 and a second portion 72, the first portion 71 is arranged along a long side 101, the second portion 72 is arranged along a short side 102, and the second portion 72 is connected to the first portion 71. Illustratively, one end of the on-film chip 20 is connected to the bonding region, and the other end is connected to the first portion 71 of the flexible interposer board 70. The second connecting portion 62 is located on the second portion 72, for example, the second connecting portion 62 is a plug-in portion located on the second portion 62.

The display module may further include a rigid driving circuit board 30, and the driving circuit board 30 is connected to the second connecting portion of the second portion 72, as shown in fig. 7 b. Illustratively, the driver circuit board 30 may be connected to the second portion 72 of the flexible circuit board by a plug-in structure or a snap-in plug-in structure.

For example, the chip on film may be bent toward the back side of the display panel, as shown in fig. 7b, so that the flexible interposer board 70 may be attached to the back side of the display panel.

In the display module of this embodiment, one end of the on-film chip 20 is bound with the binding region of the display panel 10, the other end of the on-film chip 20 is connected with the flexible adapting circuit board 70, and the flexible adapting circuit board 70 is flexible, so that the flexible adapting circuit board 70 can well bear the deformation torsion and can be attached to the back side of the display panel along with the bending of the on-film chip 20. When the rigid driver circuit board 30 is connected to the flexible adapter circuit board 70, the second portion 72 of the flexible adapter circuit board 70 is parallel to the short side, and the second portion 72 will not be subjected to torsion due to different deformations. Therefore, the display module according to the embodiment of the present disclosure disperses the influence of the torque force on the on-film chip 20 and the flexible adapter circuit board 70 by setting the flexible adapter circuit board 70, avoids the defects of the on-film chip falling, bright lines, no display, chip fracture and the like, reduces the risk of product failure, and improves the reliability and the product quality of the display module.

Illustratively, the number of the on-film chips 20 may be at least two, and at least two of the on-film chips 20 may be connected to the first portion 71 of the flexible patch board 70.

Illustratively, the flexible patch circuit board 70 includes signal traces, the flexible patch circuit board 70 functions as a patch, and no electronic component may be disposed on the flexible patch circuit board 70.

Fig. 8 is another schematic view of a display module according to another embodiment of the disclosure. For better explanation, the display module shown in fig. 8 is in a state before the display panel is bent. In one embodiment, as shown in fig. 8, the display region 11 is provided with a plurality of gate lines 111 and a plurality of data lines 112, the gate lines 111 extending in a first direction X, and the data lines 112 extending in a second direction Y. In this way, the image can be refreshed in the second direction Y during a frame display, i.e. the data is refreshed line by line during a frame display.

In one embodiment, as shown in fig. 8, a plurality of gate lines 111 and a plurality of data lines 112 cross each other to define a plurality of pixel regions arranged in an array. The short sides include a first short side and a second short side on opposite sides of the display area 11, for example, the first short side is located on the left side of the display area 11 and the second short side is located on the right side of the display area 11. The display panel 10 may further include a first frame area 121 and a second frame area 122, the first frame area 121 being located between the first long side and the display area 11, the second frame area 122 being located between the second long side and the display area 11. The first frame region 121 is provided with a plurality of first signal driving circuits 41, and the plurality of first signal driving circuits 41 correspond to a plurality of rows of pixel regions. The second frame region 122 is provided with a plurality of second signal driving circuits 42, and the plurality of second signal driving circuits 42 correspond to a plurality of rows of pixel regions.

Illustratively, at least one row of pixel regions corresponds to one first signal driving circuit 41 and one second signal driving circuit 42. In the first signal driving circuit 41 and the second signal driving circuit 42 corresponding to the same row of pixel regions, the first signal driving circuit 41 is connected to the binding region, and the second signal driving circuit 42 is connected to the binding region. With such a structure, the one-to-one or one-to-two driving of the two sides of the pixel is realized.

Illustratively, the number of the on-film chips 20 may be 4, the first signal driving circuit 41 may be connected to the two on-film chips 20 on the left side through the bonding region, and the second signal driving circuit 42 may be connected to the two on-film chips 20 on the right side through the bonding region.

The embodiment of the disclosure also provides a display device, which comprises the display module of the foregoing embodiment. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

In the description of the present specification, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present disclosure.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

In the present disclosure, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral with; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different features of the disclosure. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present disclosure. Moreover, the present disclosure may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

While the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a display module assembly, its characterized in that, includes display panel, flexonics board and dirver circuit board, display panel includes long limit and minor face, long limit with minor face mutually perpendicular, flexonics board includes first connecting portion and second connecting portion, first connecting portion with display panel connects, the second connecting portion with dirver circuit board connects, the direction that sets up of second connecting portion is on a parallel with the minor face.

2. The display module of claim 1, wherein the display panel is curved along the long side.

3. The display module of claim 1,

the flexible connecting plate comprises a first on-film chip and a second on-film chip, the first connecting part comprises a first sub-binding part located on the first on-film chip and a second sub-binding part located on the second on-film chip, the first sub-binding part and the second sub-binding part are respectively in binding connection with the first binding area and the second binding area, and the setting directions of the first binding area and the second binding area are both parallel to the short side;

the second connecting portion is including being located the first epimembranal third sub-binding portion of chip and being located the second epimembranal fourth sub-binding portion of chip, driver circuit board includes first driver circuit board and second driver circuit board, the third sub-binding portion with the fourth sub-binding portion respectively with first driver circuit board with the second driver circuit board is bound and is connected.

4. The display module according to claim 3, wherein the display region is provided with a plurality of gate lines and a plurality of data lines, the gate lines extend along a second direction, the data lines extend along a first direction, the plurality of gate lines and the plurality of data lines cross each other to define a plurality of pixel regions arranged in an array, the first direction is a direction in which the long side is located, and the second direction is a direction in which the short side is located;

the long limit is including being located the first long limit and the second long limit of the relative both sides of display area, display panel is still including being located first long limit with third frame district between the display area, and be located the second long limit with fourth frame district between the display area, third frame district is provided with a plurality of first signal driver circuit, and is a plurality of first signal driver circuit and multiseriate the pixel region corresponds, fourth frame district is provided with a plurality of second signal driver circuit, and is a plurality of second signal driver circuit and multiseriate the pixel region corresponds.

5. The display module according to claim 4, wherein at least one row of the pixel regions corresponds to one of the first signal driving circuits and one of the second signal driving circuits, and in the first signal driving circuit and the second signal driving circuit corresponding to the same row of the pixel regions, the first signal driving circuit is connected to the first bonding region through a first wire, the second signal driving circuit is connected to the second bonding region through a second wire, and a resistance of the first wire is the same as a resistance of the second wire.

6. The display module according to claim 5, wherein the first trace includes a first sub-line segment and a second sub-line segment, the second trace includes a third sub-line segment and a fourth sub-line segment, the first sub-line segment and the third sub-line segment extend along the first direction, the second sub-line segment and the fourth sub-line segment extend along the second direction, the length of the first sub-line segment is smaller than the length of the third sub-line segment, and the line width of the first sub-line segment is smaller than the line width of the third sub-line segment.

7. The display module according to claim 5, wherein a distance between the first signal driving circuit and the first bonding area is smaller than a distance between the second signal driving circuit and the second bonding area, and the first trace includes a meander curve segment for increasing a length of the trace.

8. The display module according to claim 5, wherein the signals transmitted by the first traces and the second traces include one of a trigger signal, a clock signal and a power signal.

9. The display module of claim 3, wherein the first and second on-film chips are bent toward the back side of the display panel, so that the first and second driving circuit boards are attached to the back side of the display panel.

10. The display module according to claim 9, further comprising a flexible connection wiring board, wherein the flexible connection wiring board connects the first driving circuit board and the second driving circuit board, and the flexible connection wiring board is attached to a back side of the display panel along a curved shape of the display panel.

11. The display module assembly of claim 1, wherein the flexible connection board comprises a chip on film and a flexible connection board, the long side is located on one side of the display area, the display panel further comprises a frame area located between the long side and the display area, the frame area is provided with a binding area, the binding area is arranged along the long side direction, the first connection part is located on the chip on film, the first connection part is bound and connected with the binding area, the flexible connection board comprises a first part and a second part, the first part is arranged along the long side direction, the second part is arranged along the short side direction, the first part is connected with the chip on film, and the second connection part is located on the second part.

12. The display module according to claim 11, wherein the short sides comprise a first short side and a second short side located at two opposite sides of the display area, the display panel further comprises a first frame area located between the first short side and the display area, and a second frame area located between the second short side and the display area, the first frame area is provided with a plurality of first signal driving circuits, and the second frame area is provided with a plurality of second signal driving circuits.

13. A display device comprising the display module according to any one of claims 1 to 12.