CN113133201B - Circuit board for display screen, display screen assembly and processing method thereof - Google Patents
Circuit board for display screen, display screen assembly and processing method thereof Download PDFInfo
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- CN113133201B CN113133201B CN202110420915.8A CN202110420915A CN113133201B CN 113133201 B CN113133201 B CN 113133201B CN 202110420915 A CN202110420915 A CN 202110420915A CN 113133201 B CN113133201 B CN 113133201B
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- circuit board
- display screen
- rigid
- rigid circuit
- hard
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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
- H05K1/14—Structural association of two or more printed circuits
- H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
Abstract
The invention discloses a circuit board for a display screen, a display screen assembly and a processing method thereof, wherein the display screen comprises a display area and a non-display area, the non-display area comprises a transition part, a first control part and a second control part, the circuit board is provided with a binding part, the binding part is suitable for being electrically connected with the display screen, and the circuit board comprises: the first hard circuit board, the second hard circuit board and the first flexible circuit board, the first flexible circuit board is connected between the first hard circuit board and the second hard circuit board, and the first flexible circuit board can be bent to enable the first hard circuit board and the second hard circuit board to be arranged oppositely. According to the circuit board for the display screen, the first rigid circuit board is bent through the first flexible circuit board to be opposite to the second rigid circuit board, so that the space of the back of the display screen occupied by the circuit board can be saved, the circuit board is convenient to arrange, and arrangement of other components is facilitated.
Description
Technical Field
The invention relates to the field of display, in particular to a circuit board for a display screen, a display screen assembly and a processing method of the display screen assembly.
Background
With the rapid development of display technology, various types of display products gradually appear in the lives of people, display screens are widely applied to smart phones and wearable products, and circuit boards on the display screens are important parts for lighting and being driven and controlled and are important information transmission channels for connecting the whole machine and the display screens. However, in the related art, the circuit board of the display screen has a large size and a large occupied space, so that the utilization space of other components of the whole machine is small, which is not favorable for the arrangement of the whole machine, and the performance of the whole machine is poor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention provides the circuit board for the display screen, which occupies a small space and is convenient to arrange.
The invention also provides a display screen component.
The invention further provides a processing method of the display screen assembly.
According to the circuit board for the display screen provided by the embodiment of the invention, the display screen comprises a display area and a non-display area, the non-display area comprises a transition part, a first control part and a second control part, the first control part is positioned between the display area and the transition part, the second control part is positioned on one side of the transition part far away from the display area, the transition part can be bent to enable the second control part and the first control part to be oppositely arranged, the circuit board is provided with a binding part, and the binding part is suitable for being electrically connected with the display screen, and the circuit board comprises: the first hard circuit board and the second hard circuit board are arranged at intervals, and the second hard circuit board is suitable for being arranged on one side of the thickness of the second control part; the first flexible circuit board is connected between the first hard circuit board and the second hard circuit board, and the first flexible circuit board can be bent to enable the first hard circuit board and the second hard circuit board to be arranged oppositely, so that the first hard circuit board and the second hard circuit board are both suitable for being positioned on one side of the second control part, which is deviated from the first control part, when the second control part and the first control part are arranged oppositely.
According to the circuit board for the display screen, the bendable first flexible circuit board is arranged between the first rigid circuit board and the second rigid circuit board, and the first rigid circuit board is bent to be opposite to the second rigid circuit board through the first flexible circuit board, so that space can be saved, the circuit board is convenient to arrange, and arrangement of other components is facilitated.
Further, the circuit board for a display screen further includes: the first adhesive part and the protective layer are both positioned on one side of the thickness of the second rigid circuit board, the first adhesive part is an insulating part and is used for fixedly connecting the second rigid circuit board with the second control part, and the protective layer is arranged on one side, away from the second rigid circuit board, of the first adhesive part in a peelable manner; and/or the second adhesive piece is an insulating piece and is arranged on one side of the thickness of the first rigid circuit board and/or the second rigid circuit board, and the first flexible circuit board can be bent to enable the first rigid circuit board and the second rigid circuit board to be fixedly connected through the second adhesive piece.
In some embodiments, an avoidance hole is formed on the second rigid circuit board and is adapted to avoid the driving chip on the second control portion.
In some embodiments, the circuit board for a display screen further comprises: the second flexible circuit board is connected to one end, far away from the first rigid circuit board, of the second rigid circuit board, and the binding portion is formed on the second flexible circuit board.
According to the display screen assembly of the embodiment of the invention, the display screen assembly has a folded state and comprises: the display screen comprises a display area and a non-display area, the non-display area comprises a transition part, a first control part and a second control part, the first control part is positioned between the display area and the transition part, and the second control part is positioned on one side of the transition part, which is far away from the display area; the circuit board is used for the display screen according to the above embodiment of the invention, in the folded state, the transition portion is bent to enable the second control portion and the first control portion to be arranged oppositely, the first flexible circuit board is bent to enable the first rigid circuit board and the second rigid circuit board to be arranged oppositely, and the first rigid circuit board and the second rigid circuit board are both located on one side of the second control portion, which is far away from the first control portion.
According to the display screen assembly provided by the embodiment of the invention, the second control part and the first control part are oppositely arranged through bending the transition part, so that the occupied space of a non-display area is reduced, the screen occupation ratio is improved, and the display screen assembly occupies a smaller space and is convenient to arrange and beneficial to the arrangement of other components by adopting the circuit board.
Further, in the folded state, the first flexible circuit board is located at one end of the first rigid circuit board and the second rigid circuit board far away from the display area.
According to the processing method of the display screen assembly provided by the embodiment of the invention, the display screen assembly is the display screen assembly, and the processing method comprises the following steps:
s1, fixing the circuit board, and moving the display screen to a preset position to be bound with the circuit board;
s2, fixedly connecting the second hard circuit board on the thickness side of the second control part;
s3, bending the first flexible circuit board and the transition part to enable the second control part and the first control part to be arranged oppositely, enabling the first hard circuit board and the second hard circuit board to be arranged oppositely, and enabling the first hard circuit board and the second hard circuit board to be located on one side, deviating from the first control part, of the second control part.
According to the processing method of the display screen assembly, the display screen assembly can be quickly and conveniently processed, the display screen assembly occupies a small space, is convenient to arrange, and is beneficial to arrangement of other components.
Further, in the folded state, the first flexible circuit board is located at one end of the first rigid circuit board and the second rigid circuit board, which is far away from the display area, in step S1, the second rigid circuit board is at least fixed, the display screen moves to the preset position along the direction of the second rigid circuit board towards the first rigid circuit board, and the second rigid circuit board is pressed downwards to the second control portion for binding.
Further, the circuit board further includes: a second flexible circuit board connected to an end of the second rigid circuit board far from the first rigid circuit board, the binding portion being formed on the second flexible circuit board, and in the step S1, at least the second flexible circuit board is fixed.
In some embodiments, the circuit board further comprises: the first adhesive piece and the protective layer are located on one side of the thickness of the second rigid circuit board, the first adhesive piece is an insulating piece and used for bonding and connecting the second rigid circuit board with the second control part, the protective layer is arranged on one side, deviating from the second rigid circuit board, of the first adhesive piece in a stripping mode, in the step S2, the protective layer is stripped to expose the first adhesive piece, and the second rigid circuit board is bonded on the second control part through the first adhesive piece.
In some embodiments, the circuit board further comprises: the second gluing piece is an insulating piece and is arranged on one side of the thickness of the first rigid circuit board and/or the second rigid circuit board, the second gluing piece is used for bonding and connecting the first rigid circuit board and the second rigid circuit board, and the first flexible circuit board is bent and comprises: before the first flexible circuit board is bent, the second adhesive piece is arranged on one side of the thickness of the first rigid circuit board and/or the second rigid circuit board, and the first flexible circuit board is bent until the first rigid circuit board and the second rigid circuit board are connected in an adhesive mode through the second adhesive piece.
In some embodiments, in step S3, the first flexible circuit board is bent first, and then the transition portion is bent.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic front view of a display screen according to one embodiment of the invention;
FIG. 2 is a schematic view of a display screen according to one embodiment of the present invention;
FIG. 3 is a schematic front view of a circuit board according to one embodiment of the invention;
FIG. 4 is a schematic diagram of a circuit board according to one embodiment of the present invention;
FIG. 5 is a schematic view of a display screen assembly according to one embodiment of the present invention;
FIG. 6 is a schematic view of a first flexible circuit board of a display screen assembly being bent according to one embodiment of the present invention;
FIG. 7 is a cross-sectional view of a first flexible circuit board and a transition bend of a display screen assembly according to one embodiment of the present invention;
FIG. 8 is a flow chart of a method of manufacturing a display screen assembly according to one embodiment of the present invention;
fig. 9 is a schematic diagram of the circuit board and the display screen being bound together according to an embodiment of the invention, wherein an arrow indicates a moving direction of the display screen.
Reference numerals are as follows:
a display screen assembly 100,
A circuit board 1,
A first rigid circuit board 11, a second rigid circuit board 12, an avoidance hole 121, a first flexible circuit board 13, a second flexible circuit board 14, a binding part 15, a first adhesive part 16, a second adhesive part 17, a protective layer 18,
A display panel 2, a display area 21, a non-display area 22, a first control part 221, a second control part 222, a driving chip 2221, a transition part 223,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.
The circuit board 1 for the display 2, the display assembly 100, and the method of processing the display assembly 100 according to the embodiment of the present invention are described below with reference to the accompanying drawings. The display screen assembly 100 adopts the circuit board 1 for the display screen 2, and the processing method of the display screen assembly 100 is used for processing the display screen assembly 100. In the following description of the present application, the display 2 of the mobile phone is taken as an example for illustration, but the present application is not limited thereto.
As shown in fig. 1 and 7, the display screen 2 includes a display area 21 and a non-display area 22, the non-display area 22 includes a transition portion 223, a first control portion 221, and a second control portion 222, the first control portion 221 is located between the display area 21 and the transition portion 223, the second control portion 222 is located on a side of the transition portion 223 away from the display area 21, and the transition portion 223 is bendable such that the second control portion 222 and the first control portion 221 are disposed opposite to each other. Specifically, the second control portion 222 is bent to the back surface of the first control portion 221 through the transition portion 223, so that the screen occupation ratio of the display screen 2 is improved, the display effect is better, and the user experience is good.
According to the circuit board 1 for the display screen 2 of the embodiment of the present invention, as shown in fig. 3, 4 and 6, the circuit board 1 has the binding portion 15, the binding portion 15 is adapted to be electrically connected to the display screen 2, and the circuit board 1 is electrically connected to the display screen 2 through the binding portion 15, so as to drive the display screen 2 to operate. It should be explained here that the "electrical connection" is a physical contact circuit connection, and for example, the binding portion 15 and the display screen 2 may be electrically connected through a circuit.
As shown in fig. 3, 4, 6 and 7, the circuit board 1 includes a first hard circuit board 11, a second hard circuit board 12 and a first flexible circuit board 13, the first hard circuit board 11 and the second hard circuit board 12 are disposed at an interval, the second hard circuit board 12 and the first flexible circuit board 13 are connected between the first hard circuit board 11 and the second hard circuit board 12, and the first flexible circuit board 13 can be bent to make the first hard circuit board 11 and the second hard circuit board 12 disposed opposite to each other. The second rigid circuit board 12 is suitable for being disposed on one side of the thickness of the second control portion 222, and when the first flexible circuit board 13 is bent to make the first rigid circuit board 11 and the second rigid circuit board 12 disposed opposite to each other, the first rigid circuit board 11 and the second rigid circuit board 12 can be both suitable for being disposed on one side of the second control portion 222 away from the first control portion 221 when the second control portion 222 and the first control portion 221 are disposed opposite to each other.
Specifically, the first rigid circuit board 11 may be bent by the first flexible circuit board 13 to be opposite to the second rigid circuit board 12, and the second control portion 222 may be bent by the transition portion 223 to be opposite to the first control portion 221, so that when the second control portion 222 is opposite to the first control portion 221, the first rigid circuit board 11 and the second rigid circuit board 12 may both be located on a side of the second control portion 222 away from the first control portion 221, thereby saving a space on the back of the display screen 2 occupied by the circuit board 1, and reducing a space occupation ratio of the circuit board 1, so as to make a larger space for arrangement of other components. For example, when the display screen 2 is a mobile phone display screen, because the occupied space of the circuit board 1 is small, a large space can be vacated in a limited space inside the mobile phone, so that a battery, a mainboard and the like of the mobile phone can be arranged conveniently, the utilization space of the battery and the mainboard can be increased, and the improvement of the performance of the product is facilitated, for example, more batteries can be arranged, or a battery with a larger volume can be arranged to increase the endurance of the mobile phone, a processor with stronger performance can be arranged, the operation speed of the mobile phone is increased, so that the competitiveness of the product is improved, and the acceptance of consumers is improved.
According to the circuit board 1 for the display screen 2, the bendable first flexible circuit board 13 is arranged between the first rigid circuit board 11 and the second rigid circuit board 12, and the first rigid circuit board 11 is bent to be opposite to the second rigid circuit board 12 through the first flexible circuit board 13, so that when the circuit board 1 is applied to the display screen 2, the space on the back of the display screen 2 occupied by the circuit board 1 can be saved, the circuit board 1 is convenient to arrange, and arrangement of other components is facilitated.
In some embodiments of the present invention, the circuit board 1 is a rigid-flex board, the first flexible circuit board 13 may be a single-layer board structure, and may be folded at 180 ° with a bending radius of 0.5mm to 1.5mm, the rigid circuit boards (for example, the first rigid circuit board 11 and the second rigid circuit board 12 described above) are PCB boards (printed circuit boards), and may be single-layer, double-layer, or multi-layer circuit boards, and compared with the flexible FPC, the rigid circuit boards have higher device arrangement density, and may save space, and the first flexible circuit board 13 may be connected to any layer of the rigid circuit boards to form a via.
According to a further embodiment of the present invention, as shown in fig. 4, 5 and 6, the circuit board 1 further includes a first adhesive member 16 and a protective layer 18, the first adhesive member 16 and the protective layer 18 are both located on the thickness side of the second rigid circuit board 12, the first adhesive member 16 is an insulating member and the first adhesive member 16 is used for fixedly connecting the second rigid circuit board 12 to the second control portion 222, and the protective layer 18 is peelably disposed on the side of the first adhesive member 16 away from the second rigid circuit board 12.
Specifically, the first adhesive 16 is disposed on the second rigid circuit board 12 to fixedly connect the second rigid circuit board 12 to the second control portion 222, which is simple, convenient and reliable to connect, and simultaneously, is convenient to ensure that the binding portion 15 is reliably bound to the display screen 2, for example, the binding portion 15 may be bound to the second control portion 222 to electrically connect the circuit board 1 to the display screen 2; the first adhesive member 16 is an insulating member, which can prevent the electronic components on the second rigid circuit board 12 and the electronic components on the second control portion 222 from being short-circuited and damaged; in addition, the first adhesive member 16 may be a soft material, and has a vibration damping effect. It will be understood, of course, that the first adhesive 16 may also be provided on the second control portion 222.
Through set up strippable protective layer 18 on first sticky thing 16 for protective layer 18 can not influence the fixed connection of second rigid circuit board 12 with second control part 22, and protective layer 18 can keep apart first sticky thing 16, in order to avoid first sticky thing 16 and other parts to take place the adhesion, for example in the assembly process of display screen 2 and circuit board 1, can bind portion 15 and display screen 2 earlier, again with second rigid circuit board 12 and second control part 222 fixed connection, protective layer 18 can avoid when binding portion 15 of circuit board 1 has not bound with second control part 222, second rigid circuit board 12 and second control part 222 are fixed through first sticky thing 16 and influence the follow-up process of binding.
Alternatively, the first adhesive 16 may be a foam adhesive, and the first adhesive 16 has good insulating property, electromagnetic shielding property and buffering property.
According to some embodiments of the present invention, as shown in fig. 6 and 7, the circuit board 1 further includes a second adhesive 17, the second adhesive 17 is an insulating member, and the second adhesive 17 is disposed on a thickness side of the first rigid circuit board 11 and/or the second rigid circuit board 12, the first flexible circuit board 13 can be bent to fixedly connect the first rigid circuit board 11 and the second rigid circuit board 12 through the second adhesive 17, so that the relative movement of the first rigid circuit board 11 and the second rigid circuit board 12 can be limited by the second adhesive member 17, which is simple and convenient, the connection is reliable, meanwhile, in the process of assembling the circuit board 1 and the display screen 2, the first rigid circuit board 11 and the second rigid circuit board 12 can be fixed without additionally arranging other components, and the problem that the assembling efficiency is influenced because the first rigid circuit board 11 and the second rigid circuit board 12 can move relatively can also be avoided. In addition, since the second adhesive 17 is an insulating member, the second adhesive 17 does not affect the circuit arrangement of the circuit board 1.
It should be noted that in the description of the present application, "and/or" is meant to include three parallel schemes, and taking "a and/or B" as an example, the scheme includes a scheme, or B scheme, or a scheme satisfied by both a and B. For example, in the present application, the second adhesive member 17 is disposed on the thickness side of the first rigid circuit board 11 and/or the thickness side of the second rigid circuit board 12, and includes the following three schemes: the second adhesive 17 is disposed on the thickness side of the first rigid circuit board 11, the second adhesive 17 is disposed on the thickness side of the second rigid circuit board 12, and the second adhesive 17 is disposed on the thickness side of the first rigid circuit board 11 and the thickness side of the second rigid circuit board 12.
Alternatively, the second adhesive 17 may be a foam adhesive, and the second adhesive 17 has good insulating property, electromagnetic shielding property and buffering property.
According to some embodiments of the present invention, as shown in fig. 4 to 7, the circuit board 1 further includes a first adhesive member 16, a protective layer 18 and a second adhesive member 17, the first adhesive member 16 and the protective layer 18 are both located on the thickness side of the second rigid circuit board 12, the first adhesive member 16 is an insulating member and the first adhesive member 16 is used for fixedly connecting the second rigid circuit board 12 with the second control portion 222, the protective layer 18 is peelably provided on the side of the first adhesive member 16 facing away from the second rigid circuit board 12, the second adhesive member 17 is an insulating member and the second adhesive member 17 is provided on the thickness side of the first rigid circuit board 11 and/or the thickness side of the second rigid circuit board 12, and the first flexible circuit board 13 is bendable so that the first rigid circuit board 11 and the second rigid circuit board 12 are fixedly connected through the second adhesive member 17.
According to some embodiments of the present invention, as shown in fig. 2, fig. 3, and fig. 5, the second control portion 222 is provided with a driving chip 2221, the driving chip 2221 may protrude from a surface of the second control portion 222, and the second rigid circuit board 12 is provided with an avoidance hole 121 adapted to avoid the driving chip 2221 on the second control portion 222, so as to achieve tight adhesion between the second rigid circuit board 12 and the second control portion 222, and avoid that the driving chip 2221 separates the second rigid circuit board 12 from the second control portion 222, which results in an excessively large occupied space in the thickness direction of the second control portion 222, thereby reducing the occupied space of the circuit board 1 in the thickness direction of the second control portion 222, and facilitating arrangement of other components. For example, when the display 2 is a display 2 of a mobile phone, the arrangement of other components in the mobile phone is facilitated.
Optionally, the avoiding hole 121 may be formed as a through hole, so that the avoiding hole 121 may be matched with the driving chips 2221 with different protruding heights, which is beneficial to improving the applicability of the circuit board 1, at this time, the whole driving chip 2221 may be located in the avoiding hole 121, or a part of the driving chip 2221 extends out of the avoiding hole 121 towards a direction away from the second control portion 222, so that the driving chip 2221 protrudes out of the surface of the second rigid circuit board 12. Of course, the relief hole 121 may also be formed as a blind hole.
According to some embodiments of the present invention, as shown in fig. 3 to 7, the circuit board 1 further includes a second flexible circuit board 14, the second flexible circuit board 14 is connected to an end of the second rigid circuit board 12 away from the first rigid circuit board 11, so that the second rigid circuit board 12 may be located between the first flexible circuit board 13 and the second flexible circuit board 14, and the binding portion 15 is formed on the second flexible circuit board 14, and since the second flexible circuit board 14 is relatively flexible and has good flexibility, the binding portion 15 may be more easily bound with the display screen 2, for example, the second control portion 222.
In some specific embodiments of the present invention, a binding pin (pin) is disposed on the second flexible circuit board 14 to connect with the display screen 2 for signal conduction, and the length of the flexible circuit board of the circuit board 1 is the sum of the length of the first flexible circuit board 13, the width of the binding portion 15 and the reserved width (0.5-1.0 mm).
It is understood that, when the circuit board 1 does not include the second flexible circuit board 14, the binding portion 15 may also be formed on the second rigid circuit board 12, and the binding portion 15 on the second rigid circuit board 12 is bound with the display screen 2, such as the second control portion 222, to electrically connect the circuit board 1 and the display screen 2.
According to the display panel assembly 100 of the embodiment of the present invention, as shown in fig. 1 to 7, the display panel assembly 100 has a folded state, and the display panel assembly 100 includes: a display screen 2 and a circuit board 1.
The display screen 2 includes a display area 21 and a non-display area 22, the non-display area 22 includes a transition portion 223, a first control portion 221 and a second control portion 222, the first control portion 221 is located between the display area 21 and the transition portion 223, and the second control portion 222 is located on a side of the transition portion 223 far away from the display area 21. The circuit board 1 is a circuit board 1 for a display screen 2 according to the above embodiment.
In a folded state, the transition portion 223 is bent to enable the second control portion 222 and the first control portion 221 to be arranged oppositely, the first flexible circuit board 13 is bent to enable the first rigid circuit board 11 and the second rigid circuit board 12 to be arranged oppositely, and the first rigid circuit board 11 and the second rigid circuit board 12 are both located on one side, away from the first control portion 221, of the second control portion 222, so that the occupied space of the non-display area 22 of the display screen 2 and the circuit board 1 is small, and the space occupation ratio of the display screen assembly 100 is reduced; for example, when the display screen assembly 100 is applied to a mobile phone, since the occupied space of the non-display area 22 of the display screen 2 and the circuit board 1 is small, a large space can be made in the limited space inside the mobile phone, so as to facilitate the arrangement of other components in the mobile phone, for example, more batteries can be arranged, the endurance of the mobile phone is increased, a processor with higher performance can be arranged, and the operation speed of the mobile phone is increased.
According to the display screen assembly 100 of the embodiment of the invention, the transition portion 223 is bent to enable the second control portion 222 and the first control portion 221 to be oppositely arranged, so that the occupied space of the non-display area 22 is reduced, the screen occupation ratio is improved, and by adopting the circuit board 1, the occupied space of the display screen assembly 100 is smaller, the arrangement is convenient, and the arrangement of other components is facilitated.
Optionally, the display screen 2 is a flexible screen. Of course, the display screen 2 may also be a rigid screen, and the transition portion 223 of the display screen 2 has good flexibility.
According to a further embodiment of the present invention, as shown in fig. 7, in the folded state, the first flexible circuit board 13 is located at one end of the first rigid circuit board 11 and the second rigid circuit board 12 away from the display area 21, so as to reduce the occupied space of the display screen assembly 100 and facilitate the arrangement, and meanwhile, in the processing process of the display screen assembly 100, the first flexible circuit board 13 is bent before bending, so that the display screen 2 can support the whole circuit board 1, so as to effectively protect the circuit board 1, and there is no need to additionally provide other components to support the circuit board 1, which is beneficial to simplifying the processing procedure of the display screen assembly 100.
In some embodiments of the present invention, as shown in fig. 4 to 7, the circuit board 1 of the display screen assembly 100 further includes a first adhesive member 16 and a protective layer 18, the first adhesive member 16 and the protective layer 18 are both located on the thickness side of the second rigid circuit board 12, the first adhesive member 16 is an insulating member and the first adhesive member 16 is used to fixedly connect the second rigid circuit board 12 to the second control portion 222, and the protective layer 18 is releasably disposed on the side of the first adhesive member 16 away from the second rigid circuit board 12.
In some embodiments of the present invention, as shown in fig. 4 to 7, the circuit board 1 of the display screen assembly 100 further includes a second adhesive 17, the second adhesive 17 is an insulating member, and the second adhesive 17 is disposed on a thickness side of the first rigid circuit board 11 and/or the second rigid circuit board 12, and the first flexible circuit board 13 can be bent to fixedly connect the first rigid circuit board 11 and the second rigid circuit board 12 through the second adhesive 17.
In some embodiments, as shown in fig. 4-7, circuit board 1 of display screen assembly 100 includes first adhesive 16, protective layer 18, and second adhesive 17, and the arrangement of first adhesive 16, protective layer 18, and second adhesive 17 is not described in detail here.
In some embodiments of the invention, as shown in fig. 2-3 and 5-7, the second control portion 222 is provided with a driving chip 2221, the driving chip 2221 may protrude from the surface of the second control portion 222, and the second rigid circuit board 12 of the circuit board 1 of the display screen assembly 100 is formed with an avoiding hole 121 adapted to avoid the driving chip 2221 on the second control portion 222.
In some embodiments of the present invention, as shown in fig. 3 to 7, the circuit board 1 of the display screen assembly 100 further includes a second flexible circuit board 14, the second flexible circuit board 14 is connected to an end of the second rigid circuit board 12 away from the first rigid circuit board 11, and the binding portion 15 is formed on the second flexible circuit board 14. The binding part 15 is arranged on the second flexible circuit board 14, and the second flexible circuit board 14 is soft, so that the circuit board 1 can be bound with the second control part 222 of the display screen 2 more easily.
According to the method for processing the display panel assembly 100 of the embodiment of the invention, as shown in fig. 8, the display panel assembly 100 is the display panel assembly 100 of the above embodiment, and the method for processing the display panel assembly 100 includes:
s1, fixing the circuit board 1, and moving the display screen 2 to a preset position to be bound with the circuit board 1; for example, the circuit board 1 may be fixed by adsorbing the circuit board 1 by the vacuum suction head 200, or the circuit board 1 may be fixed by a robot arm, and the display screen 2 may be fixed on the loading table 300, and the loading table 300 may be moved to a predetermined position to bind the circuit board 1 and the display screen 2.
S2, fixedly connecting the second rigid circuit board 12 to the thickness side of the second control portion 222; for example, the second rigid circuit board 12 and the second control portion 222 may be fixedly connected by an adhesive (such as the first adhesive 16 described above). It is understood that the fixed connection manner of the second rigid circuit board 12 and the second control portion 222 is not limited thereto.
S3, bending the first flexible circuit board 13 and the transition portion 223 to make the second control portion 222 and the first control portion 221 be disposed opposite to each other, the first rigid circuit board 11 and the second rigid circuit board 12 are disposed opposite to each other, and the first rigid circuit board 11 and the second rigid circuit board 12 are both located on a side of the second control portion 222 away from the first control portion 221. The display screen assembly 100 occupies a small space by bending the first flexible circuit board 13 and the transition portion 223, and is convenient to arrange, and is beneficial to arrange other components.
According to the processing method of the display screen assembly 100, the display screen assembly 100 of the embodiment can be processed quickly and conveniently, the display screen assembly 100 occupies a small space, is convenient to arrange, and is beneficial to arrangement of other components.
According to a further embodiment of the present invention, as shown in fig. 7 and 9, in the folded state, the first flexible circuit board 13 is located at an end of the first rigid circuit board 11 and the second rigid circuit board 12 away from the display area 21, in step S1, at least the second rigid circuit board 12 is fixed, and at this time, the circuit board 1 may be in the unfolded state, the first flexible circuit board 13 is not bent (as shown in fig. 9), the display screen 2 is moved to a preset position along the direction (for example, the direction of the arrow in fig. 9) of the second rigid circuit board 12 toward the first rigid circuit board 11, and the second rigid circuit board 12 is pressed down to the second control portion 222 for binding.
In step S1, the fixed circuit board 1 may fix the second rigid circuit board 12 alone, the first rigid circuit board 11 is connected to the second rigid circuit board 12 through the first flexible circuit board 13, and the circuit board 1 drops on one side of the first rigid circuit board 11 due to the influence of gravity, so that the first rigid circuit board 11 is located under the second rigid circuit board 12, as shown in fig. 9, the display screen 2 moves to a predetermined position along the second rigid circuit board 12 toward the first rigid circuit board 11, thereby preventing the display screen 2 from moving to the predetermined position along the first rigid circuit board 11 toward the second rigid circuit board 12, and the display screen 2 may collide with the first rigid circuit board 11 to cause the circuit board 1 to be damaged and the binding yield to be low.
In some specific embodiments, in the process that the display screen 2 moves to the preset position along the direction from the second rigid circuit board 12 to the first rigid circuit board 11, if the distance between the display screen 2 and the circuit board 1 in the vertical direction is short, friction is generated on the surfaces of the circuit board 1 and the display screen 2, however, a protective film is attached on the surface of the display screen 2, and the protective film is removed before a subsequent process is attached to the glass cover plate, so that the friction generated on the surfaces of the circuit board 1 and the display screen 2 does not have any influence on the display screen 2, such as damage.
It is understood that, in step S1, the first rigid circuit board 11 and the second rigid circuit board 12 may be fixed at the same time, or the first rigid circuit board 11, the second rigid circuit board 12 and the first flexible circuit board 13 may be fixed at the same time, where the direction in which the display screen 2 moves to the preset position may not be limited.
According to a further embodiment of the present invention, as shown in fig. 3 to 7, the circuit board 1 of the display screen assembly 100 further includes a second flexible circuit board 14, the second flexible circuit board 14 is connected to an end of the second rigid circuit board 12 away from the first rigid circuit board 11, and the binding portion 15 is formed on the second flexible circuit board 14. The binding part 15 is arranged on the second flexible circuit board 14, and the second flexible circuit board 14 is soft, so that the circuit board 1 can be bound with the second control part 222 of the display screen 2 more easily.
Thereby, in step S1, at least the second flexible circuit board 14 may be fixed. In step S1, the second flexible circuit board 14 may be fixed alone, the second flexible circuit board 14 and the second rigid circuit board 12 may be fixed, the second flexible circuit board 14, the second rigid circuit board 12, the first flexible circuit board 13, and the like may also be fixed, which are not illustrated one by one, so that the fixing manner of the circuit board 1 is flexible.
In some embodiments of the present invention, as shown in fig. 4 to 7, in the method for manufacturing the display panel assembly 100, the circuit board 1 of the display panel assembly 100 further includes: the first adhesive 16 and the protective layer 18 are both located on the thickness side of the second rigid circuit board 12, the first adhesive 16 is an insulating member for bonding the second rigid circuit board 12 to the second control portion 222, and the protective layer 18 is peelably disposed on the side of the first adhesive 16 away from the second rigid circuit board 12. In step S2, the protection layer 18 is peeled off to expose the first adhesive member 16, and the second rigid circuit board 12 is adhered to the second control portion 222 by the first adhesive member 16, so that the method is simple and the second rigid circuit board 12 is connected reliably.
In some embodiments of the present invention, as shown in fig. 5 to 7, in the method for processing the display panel assembly 100, the circuit board 1 of the display panel assembly 100 further includes a second adhesive 17, the second adhesive 17 is an insulating member, and the second adhesive 17 is disposed on a thickness side of the first rigid circuit board 11 and/or a thickness side of the second rigid circuit board 12, the second adhesive 17 is used to adhesively connect the first rigid circuit board 11 and the second rigid circuit board 12, and bending the first flexible circuit board 13 includes: before the first flexible circuit board 13 is bent, the second adhesive part 17 is arranged on one side of the thickness of the first rigid circuit board 11 and/or one side of the thickness of the second rigid circuit board 12, and the first flexible circuit board 13 is bent until the first rigid circuit board 11 and the second rigid circuit board 12 are connected through the second adhesive part 17 in an adhesive manner, so that other parts are not required to be additionally arranged to fix the first rigid circuit board 11 and the second rigid circuit board 12 in the subsequent processing process, and the problem that the subsequent processing efficiency is influenced because the first rigid circuit board 11 and the second rigid circuit board 12 can move relatively can be avoided; for example, in step S3, if the first flexible circuit board 13 is bent at the bending transition portion 223, it is avoided that the bending efficiency of the transition portion 223 is affected due to the first rigid circuit board 11 and the second rigid circuit board 12 being not fixed during the process of bending the transition portion 223, thereby facilitating the improvement of the processing efficiency of the display screen assembly 100.
In some embodiments of the invention, in the processing method of the display panel assembly 100, in step S3, the first flexible circuit board 13 is bent first, and then the transition portion 223 is bent, in step S3, the first flexible circuit board 13 is bent first, so that the first rigid circuit board 11 and the second rigid circuit board 12 are disposed opposite to each other, at this time, the first rigid circuit board 11 and the second rigid circuit board 12 are both located on one side of the thickness of the second control portion 222, and then the transition portion 223 is bent, so that the second control portion 22 and the first control portion 221 are disposed opposite to each other, and the first rigid circuit board 11 and the second rigid circuit board 12 are both located on one side of the second control portion 222 away from the first control portion 221, so as to facilitate processing.
For example, in some embodiments of the present invention, after the circuit board 1 is bound with the display screen 2, a part of the circuit board 1 is located above the display area 21 of the display screen 2, so that the subsequent processes cannot be performed, for example, the glass cover plate cannot be bonded, and then the first flexible circuit board 13 is bent first and then the transition portion 223 is bent, so that the subsequent processes cannot be affected by the arrangement of the circuit board 1. It is understood that the transition portion 223 may be bent first, and then the first flexible circuit board 13 may be bent.
The circuit board 1 of the display panel 2, the display panel assembly 100 and the method of manufacturing the same according to the embodiment of the present invention are described in detail in one embodiment with reference to fig. 1 to 9. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.
As shown in fig. 1 and 7, the display panel assembly 100 includes a display panel 2 and a circuit board 1, the display panel 2 includes a display area 21 and a non-display area 22, the non-display area 22 includes a transition portion 223, a first control portion 221 and a second control portion 222, the first control portion 221 is located between the display area 21 and the transition portion 223, the second control portion 222 is located on a side of the transition portion 223 away from the display area 21, and the transition portion 223 is bendable to enable the second control portion 222 and the first control portion 221 to be arranged oppositely.
As shown in fig. 3 to 7, the circuit board 1 includes a first hard circuit board 11, a second hard circuit board 12, a first flexible circuit board 13 and a second flexible circuit board 14, the first hard circuit board 11 and the second hard circuit board 12 are disposed at an interval, the first flexible circuit board 13 is connected between the first hard circuit board 11 and the second hard circuit board 12, and the first flexible circuit board 13 can be bent to make the first hard circuit board 11 and the second hard circuit board 12 disposed opposite to each other. The second rigid circuit board 12 is suitable for being disposed on one side of the thickness of the second control portion 222, and when the first flexible circuit board 13 is bent to make the first rigid circuit board 11 and the second rigid circuit board 12 disposed opposite to each other, the first rigid circuit board 11 and the second rigid circuit board 12 can be both suitable for being disposed on one side of the second control portion 222 away from the first control portion 221 when the second control portion 222 and the first control portion 221 are disposed opposite to each other. The second flexible circuit board 14 is connected to an end of the second rigid circuit board 12 away from the first rigid circuit board 11, a binding portion 15 is formed on the second flexible circuit board 14, and the binding portion 15 is adapted to be electrically connected to the display screen 2.
As shown in fig. 4 to 7, the circuit board 1 further includes a first adhesive member 16, a second adhesive member 17 and a protective layer 18, the first adhesive member 16 and the protective layer 18 are both located on one side of the thickness of the second rigid circuit board 12, the first adhesive member 16 is an insulating member, the first adhesive member 16 is used for fixedly connecting the second rigid circuit board 12 with the second control portion 222, and the protective layer 18 is peelably arranged on one side of the first adhesive member 16 away from the second rigid circuit board 12. The second adhesive 17 is an insulating member and the second adhesive 17 is disposed on one side of the thickness of the first rigid circuit board 11 and/or the second rigid circuit board 12, and the first flexible circuit board 13 can be bent to fixedly connect the first rigid circuit board 11 and the second rigid circuit board 12 through the second adhesive 17.
As shown in fig. 1 to 7, the display screen assembly 100 has a folded state, in the folded state, the transition portion 223 is bent to make the second control portion 222 and the first control portion 221 be disposed opposite to each other, the first flexible circuit board 13 is bent to make the first rigid circuit board 11 and the second rigid circuit board 12 be disposed opposite to each other, the first rigid circuit board 11 and the second rigid circuit board 12 are both located on one side of the second control portion 222 away from the first control portion 221, and the first flexible circuit board 13 is located on one end of the first rigid circuit board 11 and the one end of the second rigid circuit board 12 away from the display area 21.
As shown in fig. 8 and 9, the method of manufacturing the display panel assembly 100 includes:
s1, as shown in fig. 9, the vacuum suction head 200 fixes the circuit board 1, the loading platform 300 fixes the display screen 2 and drives the display screen 2 to move to a preset position along the second rigid circuit board 12 towards the first rigid circuit board 11, the vacuum suction head 200 presses down to bind the binding portion 15 with the display screen 2, so as to realize the reverse binding of the circuit board 1 and the display screen 2;
s2, removing the protective layer 18 of the first adhesive 16, and fixedly connecting the second rigid circuit board 12 and the second control portion 222 through the first adhesive 16, as shown in fig. 5;
s3, attaching a second adhesive member 17 to one side of the first rigid circuit board 11 and/or one side of the second rigid circuit board 12, bending the first flexible circuit board 13 to make the first rigid circuit board 11 and the second rigid circuit board 12 opposite to each other, and fixing and connecting the first rigid circuit board 11 and the second rigid circuit board 12 by the second adhesive member 17, where the first flexible circuit board 13 is located at one end of the first rigid circuit board 11 and the second rigid circuit board 12 close to the display area 21, as shown in fig. 6; then, the second control portion 222 and the first control portion 221 are opposite to each other by the bending transition 223, and the first flexible circuit board 13 is located at one end of the first rigid circuit board 11 and the second rigid circuit board 12 far away from the display area 21, so as to realize the reverse folding of the circuit board 1 on the back of the display screen 2, as shown in fig. 6.
In the description of the present invention, it is to be understood that the terms "central," "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 invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The processing method of the display screen assembly is characterized in that the display screen assembly has a folded state and comprises a display screen and a circuit board, the display screen comprises a display area and a non-display area, the non-display area comprises a transition part, a first control part and a second control part, the first control part is positioned between the display area and the transition part, the second control part is positioned at one side of the transition part far away from the display area, the circuit board is provided with a binding part which is electrically connected with the display screen, the circuit board comprises a first hard circuit board, a second hard circuit board and a first flexible circuit board, the first hard circuit board and the second hard circuit board are arranged at intervals, the second hard circuit board is arranged at one side of the thickness of the second control part, and the first flexible circuit board is connected between the first hard circuit board and the second hard circuit board, the first flexible circuit board can be bent to enable the first rigid circuit board and the second rigid circuit board to be oppositely arranged,
in the folded state, the transition part is bent to enable the second control part and the first control part to be arranged oppositely, the first flexible circuit board is bent to enable the first rigid circuit board and the second rigid circuit board to be arranged oppositely, and the first rigid circuit board and the second rigid circuit board are both positioned on one side of the second control part, which is far away from the first control part,
the processing method comprises the following steps:
s1, fixing the circuit board, and moving the display screen to a preset position to be bound with the circuit board;
s2, fixedly connecting the second hard circuit board on the thickness side of the second control part;
s3, bending the first flexible circuit board and the transition part to enable the second control part and the first control part to be arranged oppositely, enabling the first hard circuit board and the second hard circuit board to be arranged oppositely, and enabling the first hard circuit board and the second hard circuit board to be located on one side, deviating from the first control part, of the second control part.
2. The method of manufacturing a display screen assembly according to claim 1, wherein in the folded state, the first flexible circuit board is located at an end of the first rigid circuit board and the second rigid circuit board away from the display area,
in the step S1, at least the second rigid circuit board is fixed, the display screen is moved to the preset position along the direction of the second rigid circuit board toward the first rigid circuit board, and the second rigid circuit board is pressed down to the second control portion for binding.
3. The method of manufacturing a display screen assembly of claim 1, wherein the circuit board further comprises:
a second flexible circuit board connected to an end of the second hard circuit board far from the first hard circuit board, the binding portion being formed on the second flexible circuit board,
in the step S1, at least the second flexible circuit board is fixed.
4. The method of manufacturing a display screen assembly of claim 1, wherein the circuit board further comprises:
the first adhesive part and the protective layer are both positioned on one side of the thickness of the second rigid circuit board, the first adhesive part is an insulating part and is used for bonding and connecting the second rigid circuit board with the second control part, the protective layer is arranged on one side of the first adhesive part, which is far away from the second rigid circuit board in a strippable manner,
in the step S2, the protection layer is peeled off to expose the first adhesive member, and the second rigid circuit board is adhered to the second control portion by the first adhesive member.
5. The method of manufacturing a display screen assembly of claim 1, wherein the circuit board further comprises:
the second adhesive piece is an insulating piece and is arranged on one side of the thickness of the first rigid circuit board and/or the second rigid circuit board, the second adhesive piece is used for bonding and connecting the first rigid circuit board and the second rigid circuit board,
the bending the first flexible circuit board includes: before the first flexible circuit board is bent, the second adhesive piece is arranged on one side of the thickness of the first rigid circuit board and/or the second rigid circuit board, and the first flexible circuit board is bent until the first rigid circuit board and the second rigid circuit board are connected in an adhesive mode through the second adhesive piece.
6. The method for processing a display screen assembly according to claim 1, wherein an avoiding hole is formed in the second rigid circuit board so as to be suitable for avoiding the driving chip on the second control portion.
7. The method for manufacturing a display panel assembly according to any one of claims 1 to 6, wherein in step S3, the first flexible circuit board is bent and then the transition portion is bent.
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| CN202110420915.8A CN113133201B (en) | 2021-04-19 | 2021-04-19 | Circuit board for display screen, display screen assembly and processing method thereof |
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| CN202110420915.8A CN113133201B (en) | 2021-04-19 | 2021-04-19 | Circuit board for display screen, display screen assembly and processing method thereof |
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| CN113658519B (en) * | 2021-08-03 | 2023-06-20 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN115083291B (en) * | 2022-07-25 | 2023-12-12 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN115273664B (en) * | 2022-07-29 | 2023-12-26 | 京东方科技集团股份有限公司 | Curved surface display panel, curved surface display device and manufacturing method |
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| JPH03148842A (en) * | 1989-11-06 | 1991-06-25 | Seiko Epson Corp | Structure of flexible board |
| JP4543772B2 (en) * | 2003-09-19 | 2010-09-15 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
| CN101138089B (en) * | 2005-01-31 | 2011-02-09 | 斯班逊有限公司 | Stacked type semiconductor device and method for fabricating the same |
| CN207115889U (en) * | 2017-08-31 | 2018-03-16 | 京东方科技集团股份有限公司 | Display base plate, display device |
| CN110148357B (en) * | 2019-05-22 | 2021-11-02 | 广州国显科技有限公司 | Display sounding panel |
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