CN110687728A - Display module and terminal equipment - Google Patents

Display module and terminal equipment Download PDF

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Publication number
CN110687728A
CN110687728A CN201910924998.7A CN201910924998A CN110687728A CN 110687728 A CN110687728 A CN 110687728A CN 201910924998 A CN201910924998 A CN 201910924998A CN 110687728 A CN110687728 A CN 110687728A
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CN
China
Prior art keywords
display panel
circuit board
display module
flexible circuit
support post
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910924998.7A
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Chinese (zh)
Other versions
CN110687728B (en
Inventor
贾杰
陈彩琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN201910924998.7A priority Critical patent/CN110687728B/en
Publication of CN110687728A publication Critical patent/CN110687728A/en
Application granted granted Critical
Publication of CN110687728B publication Critical patent/CN110687728B/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13458—Terminal pads
    • 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
    • G09F9/35—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 being liquid crystals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays

Abstract

The invention provides a display module and terminal equipment, the display module includes: the display panel comprises a display panel and a flexible circuit board, wherein the flexible circuit board comprises a connecting area connected with the display panel, the connecting area comprises a first subregion and a second subregion, a welding disc is arranged in the first subregion, the welding disc is respectively electrically connected with a display circuit of the display panel and the flexible circuit board, and a supporting column fixedly connected with the display panel and the flexible circuit board is arranged in the second subregion. In the embodiment of the invention, the support columns are arranged in the second sub-area, so that the connection strength between the display panel and the flexible circuit board can be enhanced, and the connection stability between the flexible circuit board and the display panel is further improved.

Description

Display module and terminal equipment
Technical Field
The invention relates to the technical field of communication, in particular to a display module and terminal equipment.
Background
With the rapid development of terminal devices, the terminal devices have more and more functions. Among the prior art, for the screen that improves terminal equipment accounts for the ratio, can set up the flexible circuit board in display module assembly, and set up some components and parts on the flexible circuit board, can increase the area that is used for showing on the display panel in the display module assembly like this, but the stability of being connected between current flexible circuit board and the display panel is relatively poor.
Disclosure of Invention
The embodiment of the invention provides a display module and terminal equipment, and aims to solve the problem that the connection stability between a front flexible circuit board and a display panel is poor.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a display module, including: the display panel comprises a display panel and a flexible circuit board, wherein the flexible circuit board comprises a connecting area connected with the display panel, the connecting area comprises a first subregion and a second subregion, a welding disc is arranged in the first subregion, the welding disc is respectively electrically connected with a display circuit of the display panel and the flexible circuit board, and a supporting column fixedly connected with the display panel and the flexible circuit board is arranged in the second subregion.
In a second aspect, an embodiment of the present invention further provides a terminal device, including: the display module is provided.
In an embodiment of the present invention, a display module includes: the display panel comprises a display panel and a flexible circuit board, wherein the flexible circuit board comprises a connecting area connected with the display panel, the connecting area comprises a first subregion and a second subregion, a welding disc is arranged in the first subregion, the welding disc is respectively electrically connected with a display circuit of the display panel and the flexible circuit board, and a supporting column fixedly connected with the display panel and the flexible circuit board is arranged in the second subregion. Like this, through set up the support column in the second is sub-regional to can strengthen the joint strength between display panel and the flexible circuit board, and then promote the stability of being connected between flexible circuit board and the display panel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present invention;
fig. 2 is a front view of a display module according to an embodiment of the present invention;
FIG. 3 is a top view of a connection area in a display module according to an embodiment of the present invention;
FIG. 4 is a front view of another display module according to an embodiment of the present invention;
FIG. 5 is a front view of a display panel and a connection area in a display module according to an embodiment of the present invention;
fig. 6 is a front view of a display panel and a connection area in another display module according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, an embodiment of the invention provides a display module. Referring to fig. 2 and 4, the display module includes: the display panel comprises a display panel 10 and a flexible circuit board 20, wherein the flexible circuit board 20 comprises a connection area 21 connected with the display panel 10, the connection area 21 comprises a first sub-area and a second sub-area, a bonding pad 30 is arranged in the first sub-area, the bonding pad 30 is respectively electrically connected with a display circuit of the display panel 10 and the flexible circuit board 20, and a support column 40 fixedly connected with the display panel 10 and the flexible circuit board 20 is arranged in the second sub-area.
The working principle of the embodiment of the invention can be expressed as follows:
in the embodiment of the present invention, since the two ends of the supporting column 40 can be respectively and fixedly connected to the display panel 10 and the flexible circuit board 20, the connection strength between the display panel 10 and the flexible circuit board 20 can be enhanced, and the connection stability between the display panel 10 and the flexible circuit board 20 is further enhanced. In addition, in the prior art, referring to fig. 1, the display panel 10 and the flexible circuit board 20 are fixedly connected, and the area corresponding to the connection area 21 on the display panel 10 cannot be used for displaying, which is generally referred to as a black border. In the embodiment of the present invention, the supporting columns 40 are arranged, so that the length of the bonding pads 30 can be correspondingly reduced, and the connection strength between the display panel 10 and the flexible circuit board 20 can be ensured. For example: as shown in fig. 3, fig. 3 is a top view of the connection region 21, and a Z direction in fig. 3 may represent a length direction of the pad 30, and a Y direction may represent a width direction of the pad 30. In the embodiment of the present invention, the length of the pad 30 may be reduced, so that the area of the first sub-region may be reduced, and further the area of the entire connection region 21 may be reduced, and accordingly the area of the region available for display on the display panel 10 may be enlarged, and further the screen occupation ratio may be enlarged.
In addition, referring to fig. 2, 4, 5, and 6, fig. 2 and 4 are front views of the display module, fig. 5 and 6 are front views of the display panel 10 and the connection region 21 in the display module, a Z direction in fig. 2, 4, 5, and 6 indicates heights of the supporting posts 40 and the pads 30, and a Y direction indicates widths of the supporting posts 40 and the pads 30.
Among them, the display panel 10 may be referred to as a display panel, the pad 30 may be referred to as a bonding pad, the connection region 21 may be referred to as a bonding region, the first sub-region may be referred to as a bonding active region or a bonding gold finger region, and the second sub-region may be referred to as a bonding inactive region. The pads 30 are electrically connected to the display circuit on the display panel 10 and the flexible circuit board 20, respectively, so that the display circuit and the circuit on the flexible circuit board 20 can be electrically connected. The pad 30 may be electrically connected to a portion of the display circuit located at an edge of the display panel 10, and the display circuit may be used to display text, images, or the like.
In addition, the display panel 10 may include an upper glass (ENCAP) and a lower glass (LTPS), and the upper glass and the lower glass may be bonded by a sealant. The lower glass is provided with a wiring, and the flexible circuit board 20 may be electrically connected to the wiring.
In addition, an adhesive layer may be further disposed in the first sub-region and the second sub-region to further enhance the connection strength between the display panel 10 and the flexible circuit board 20, and preferably, the adhesive layer is made of Anisotropic Conductive Film (ACF).
In addition, the area of the first sub-zone may be larger than the area of the second sub-zone, for example: the ratio of the areas of the first and second sub-regions may be nine to one. The position relationship between the first sub-area and the second sub-area is not limited herein, for example: the second sub-regions may be regions located on two opposite sides of the first sub-region, and may also be understood as a first sub-region arranged between two second sub-regions; of course, the second sub-area may also be arranged around the first sub-area.
In addition, the number, shape and specific arrangement of the supporting columns 40 are not limited herein. For example: the number of the supporting columns 40 may be plural, and the sizes of the plural supporting columns 40 may be the same or different. The plurality of support columns 40 may be cylindrical, conical, or the like. Of course, the support posts 40 may also be spaced apart, stacked, etc.
In addition, the embodiment of the present invention may be applied to a (Chip On Film, COF) scheme, and may also be applied to a (Chip On Glass, COG) scheme or a (Chip On PI, COP) scheme of a Liquid Crystal Display (LCD) Display module or an Active-Matrix Organic Light-emitting Diode (AMOLED) Display module.
In an embodiment of the present invention, a display module includes: the display panel comprises a display panel 10 and a flexible circuit board 20, wherein the flexible circuit board 20 comprises a connection area 21 connected with the display panel 10, the connection area 21 comprises a first sub-area and a second sub-area, a bonding pad 30 is arranged in the first sub-area, the bonding pad 30 is respectively electrically connected with a display circuit of the display panel 10 and the flexible circuit board 20, and a support column 40 fixedly connected with the display panel 10 and the flexible circuit board 20 is arranged in the second sub-area. In this way, by disposing the supporting columns 40 in the second sub-region, the connection strength between the display panel 10 and the flexible circuit board 20 can be enhanced, and the connection stability between the flexible circuit board 20 and the display panel 10 can be improved.
Optionally, at least two support columns 40 are disposed in the second sub-region.
The shapes and specific arrangement of the at least two support columns 40 are not limited herein.
For example: the second sub-region may be rectangular, and the second sub-region may include four support pillars 40, where the four support pillars 40 are located at four corners of the second sub-region respectively. And the dimensions (such as height and thickness) of the four support columns 40 can all be identical.
In the embodiment of the present invention, at least two support columns 40 are disposed in the second sub-region, so that the connection strength between the display panel 10 and the flexible circuit board 20 can be further enhanced by disposing at least two support columns 40.
Optionally, referring to fig. 5, the at least two support columns 40 include a first support column, and the first support column is an organic film layer support column, a pixel definition layer support column, or a spacer support column.
Among them, the organic film support pillars may be referred to as Planarization Layer (PLN) support pillars, the Pixel definition Layer support pillars may be referred to as Pixel Definition Layer (PDL) support pillars, and the Spacer support pillars may be referred to as Spacer (Photo Spacer, PS) support pillars.
The number of the first support columns of the at least two support columns 40 is not limited herein, for example: if the total number of the at least two support columns 40 is 10, the number of the first support columns may also be 10, and the first support columns may all be organic film-coated support columns at this time, and of course, in the same way, the first support columns may all be pixel definition layer support columns or spacer support columns.
It should be noted that, because the display panel 10 includes the structure layers such as PS, PDL, and PLN, when the structure layers are processed on the display panel 10, the organic film layer supporting pillars, the pixel definition layer supporting pillars, or the spacer supporting pillars can be simultaneously processed in the second sub-region, so that an additional manufacturing process for the supporting pillars 40 is not required, thereby reducing the manufacturing cost. In addition, the structural layer may be formed on the display panel 10 by designing a pattern using a mask and performing an exposure/development process. Accordingly, the support post 40 can also be obtained by the above-described process.
In the embodiment of the present invention, the at least two support columns 40 include a first support column, and the first support column is an organic film-coating layer support column, a pixel definition layer support column, or a spacer support column, so that the diversity of the first support column can be increased, and the flexibility of the arrangement of the first support column can be further increased.
Optionally, referring to fig. 6, the at least two support columns 40 include a second support column and a third support column which are stacked, the second support column is one of an organic film-plating layer support column, a pixel definition layer support column and a spacer support column, and the third support column is another one of the organic film-plating layer support column, the pixel definition layer support column and the spacer support column except for the second support column.
The second support column and the third support column may be the same in size or different in size.
For example: when the second support column is an organic coating layer support column and the third support column is a pixel definition layer support column and the organic coating layer support column and the pixel definition layer support column are both rectangular columns, the widths and the thicknesses of the organic coating layer support column and the pixel definition layer support column can be the same. Or, when the organic film layer supporting column is disposed close to the display panel 10 and the pixel definition layer supporting column is disposed close to the flexible circuit board 20, the width of the organic film layer supporting column may be greater than that of the pixel definition layer supporting column, so that the width of the organic film layer supporting column is gradually reduced from the organic film layer supporting column to the pixel definition layer supporting column, and thus, the weight of the second supporting column and the third supporting column may be reduced, and the use cost may be reduced.
In the embodiment of the invention, the second supporting columns and the third supporting columns are arranged in a stacked mode, and the types of the second supporting columns and the third supporting columns are different, so that the diversity of the second supporting columns and the third supporting columns is increased, and the arrangement modes of the second supporting columns and the third supporting columns are more flexible.
Optionally, the at least two support columns 40 are arranged at intervals.
At least two support columns 40 are arranged at intervals, and preferably, at least two support columns 40 can be arranged at equal intervals, that is, the distance between any two adjacent support columns 40 is the same. Of course, the specific value of the above-mentioned spacing is not limited herein.
In the embodiment of the invention, at least two support columns 40 are arranged at intervals, so that the connection effect of the support columns 40 can be ensured, and the use cost of the support columns 40 can be reduced.
Optionally, the heights of the at least two support columns 40 are all equal.
In the embodiment of the invention, the heights of at least two supporting columns 40 are equal, so that the sizes are unified, the supporting columns 40 can be more conveniently manufactured or replaced, and the efficiency of manufacturing or replacing the supporting columns 40 is improved.
Optionally, the second sub-region is disposed around the first sub-region.
In the embodiment of the present invention, the second sub-region is disposed around the first sub-region, so that the supporting pillars 40 are distributed around the first sub-region, and compared with the manner in which the supporting pillars 40 are distributed on one side of the first sub-region, the supporting effect of the flexible circuit board 20 to the first sub-region is more balanced while reducing the occurrence of the phenomenon in which the flexible circuit board 20 is inclined to the first sub-region.
Optionally, referring to fig. 5 and 6, a first organic plating layer 50 is further disposed in the first sub-region, and the first organic plating layer 50 is disposed around the pad 30.
In the embodiment of the invention, the first organic coating layer 50 is arranged around the bonding pad 30, so that the contact between the bonding pad 30 and air can be reduced, the corrosion resistance of the bonding pad 30 is improved, and the corrosion speed of the bonding pad 30 is delayed.
Alternatively, referring to fig. 2 and 4, the support posts 40 are cylindrical or conical in shape.
Wherein, referring to fig. 2, the support columns 40 are arranged cylindrically, and referring to fig. 4, the support columns 40 are arranged conically.
In the embodiment of the present invention, the supporting columns 40 are arranged in a cylindrical or conical shape, so that the types of the supporting columns 40 are more diversified, and the manufacturing of the supporting columns 40 is more flexible.
The embodiment of the invention also provides terminal equipment which comprises the display module.
Since the display module in the above embodiment is adopted in this embodiment, the terminal device provided in the embodiment of the present invention has the same beneficial effects as the display module in the above embodiment. Through set up the support column in the second subregion promptly to can strengthen the joint strength between display panel and the flexible circuit board, and then promote the stability of being connected between flexible circuit board and the display panel.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A display module, comprising: the display panel comprises a display panel and a flexible circuit board, wherein the flexible circuit board comprises a connecting area connected with the display panel, the connecting area comprises a first subregion and a second subregion, a welding disc is arranged in the first subregion, the welding disc is respectively electrically connected with a display circuit of the display panel and the flexible circuit board, and a supporting column fixedly connected with the display panel and the flexible circuit board is arranged in the second subregion.
2. The display module of claim 1, wherein at least two support posts are disposed in the second sub-region.
3. The display module of claim 2, wherein the at least two support posts comprise a first support post, and the first support post is an organic coating layer support post, a pixel definition layer support post, or a spacer support post.
4. The display module of claim 2, wherein the at least two support posts include a second support post and a third support post disposed in a stacked manner, the second support post is one of an organic film support post, a pixel definition layer support post and a spacer support post, and the third support post is another of the organic film support post, the pixel definition layer support post and the spacer support post except for the second support post.
5. The display module of claim 2, wherein the at least two support posts are spaced apart.
6. The display module of claim 2, wherein the at least two support posts are all equal in height.
7. The display module of claim 1, wherein the second sub-region is disposed around the first sub-region.
8. The display module of claim 1, wherein a first organic coating is further disposed in the first sub-region, the first organic coating being disposed around the pad.
9. The display module of claim 1, wherein the support posts are cylindrical or conical.
10. A terminal device, characterized in that it comprises a display module according to any one of claims 1 to 9.
CN201910924998.7A 2019-09-27 2019-09-27 Display module and terminal equipment Active CN110687728B (en)

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Application Number Priority Date Filing Date Title
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CN110687728B CN110687728B (en) 2022-07-12

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Cited By (3)

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CN111951669A (en) * 2020-08-11 2020-11-17 武汉华星光电技术有限公司 Display panel and display device
CN112135467A (en) * 2020-08-27 2020-12-25 广州国显科技有限公司 Welded structure and display module
CN113296319A (en) * 2020-02-21 2021-08-24 华为技术有限公司 Display module assembly and display device

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CN104538225A (en) * 2014-12-31 2015-04-22 福建联迪商用设备有限公司 Electrical switch structure and electronic equipment
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Publication number Priority date Publication date Assignee Title
CN113296319A (en) * 2020-02-21 2021-08-24 华为技术有限公司 Display module assembly and display device
WO2021164360A1 (en) * 2020-02-21 2021-08-26 华为技术有限公司 Display module and display apparatus
CN111951669A (en) * 2020-08-11 2020-11-17 武汉华星光电技术有限公司 Display panel and display device
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KR20220021447A (en) * 2020-08-11 2022-02-22 우한 차이나 스타 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 display panel and display device
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CN112135467A (en) * 2020-08-27 2020-12-25 广州国显科技有限公司 Welded structure and display module

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