CN109407378B - COF packaging structure of narrow-frame liquid crystal module - Google Patents
COF packaging structure of narrow-frame liquid crystal module Download PDFInfo
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- CN109407378B CN109407378B CN201811344065.2A CN201811344065A CN109407378B CN 109407378 B CN109407378 B CN 109407378B CN 201811344065 A CN201811344065 A CN 201811344065A CN 109407378 B CN109407378 B CN 109407378B
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- liquid crystal
- magnet
- middle frame
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
Abstract
The invention provides a narrow-frame liquid crystal module, which comprises: a display panel including at least an upper glass substrate and a lower glass substrate; the backlight module comprises an optical film, a back plate and at least one middle frame, wherein the back plate bears the optical film, and the middle frame surrounds the back plate and bears the display panel; the printed circuit board is positioned on the surface of the middle frame; the front frame surrounds the middle frame and is used for fixing the display panel, and an accommodating space is formed between the front frame and the middle frame; the flexible packaging assembly is positioned in the accommodating space; and the two magnetic substances are respectively positioned on the surface of the middle frame and the flexible packaging assembly, and are opposite in magnetism and oppositely arranged.
Description
Technical Field
The present invention relates to a liquid crystal module, and more particularly to a narrow-frame liquid crystal module.
Background
Nowadays, in order to meet the demands of high-density packaging, the semiconductor packaging industry has developed various types of package designs, wherein the design concept of various package structures is mostly to make the high-density packaged products thinner so as to be suitable for the increasingly thinner and smaller electronic products, such as narrow-frame liquid crystal displays.
In a liquid crystal module using a Light Emitting Diode (LED) backlight module, a narrow frame design is a trend, and a frame of a currently mature product module can have a thickness of less than 5 millimeters (mm), and there is a design demand for a narrower frame, particularly in the design of a large-sized, high-resolution module. In order to implement a narrow frame design in a Light Emitting Diode (LED) liquid crystal module, and in response to the development of electronic products toward being light, thin, short, functional and fast, the technology for driving chip packaging is also being developed toward the trend of thinner thickness and smaller area, such as Chip On Film (COF) flexible packaging.
As the panel industry is rapidly developing, the ultra-narrow frame and frameless design also become a big feature of modern panel display, and the ultra-narrow frame design can make the distance for connecting the COF to the glass substrate smaller and smaller. In the design of an ultra-narrow frame, the front end face (COF connection end face) of a glass substrate is not subjected to edging treatment, and small reciprocating offset motion can occur when external impact force is applied to the front end face and the COF connection end face due to reasons such as assembly clearance of the front frame, strength of the front frame and the like in the testing process, so that the COF is sheared at the edge of the glass substrate due to reciprocating disturbance action of the COF, the COF is easily broken, and panel display is seriously influenced.
Disclosure of Invention
The invention provides a narrow-frame liquid crystal module which can effectively solve the problem of COF (chip on film) fracture caused by front frame disturbance and shearing force of the front end face of a glass substrate in the test impact process, and greatly reduce the problems of taste display and the like caused by COF fracture.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides a narrow-frame liquid crystal module, which comprises:
a display panel including at least an upper glass substrate and a lower glass substrate;
the backlight module comprises an optical film, a back plate and at least one middle frame, wherein the back plate bears the optical film, and the middle frame surrounds the back plate and bears the display panel;
the printed circuit board is positioned on the surface of the middle frame;
the front frame surrounds the middle frame and is used for fixing the display panel, and an accommodating space is formed between the front frame and the middle frame;
the flexible packaging assembly is positioned in the accommodating space;
and the two magnetic substances are respectively positioned on the surface of the middle frame and the flexible packaging assembly.
According to the narrow-frame liquid crystal module provided by the embodiment of the invention, the two magnetic substances comprise a first magnet and a second magnet.
According to the narrow-frame liquid crystal module provided by the embodiment of the invention, the first magnet is adhered or coated on the outer surface of the middle frame.
According to the narrow-frame liquid crystal module provided by the embodiment of the invention, the second magnet is adhered or coated on the inner side surface of the flexible packaging assembly after being bent.
According to the narrow-frame liquid crystal module provided by the embodiment of the invention, the first magnet and the second magnet are arranged at corresponding positions.
According to the narrow-frame liquid crystal module provided by the embodiment of the invention, the opposite polarities of the first magnet and the second magnet are opposite, so that mutually repulsive thrust is generated.
According to the narrow-bezel liquid crystal module provided by the embodiment of the invention, one end of the flexible packaging assembly is electrically coupled to the lower glass substrate, and the other end of the flexible packaging assembly is electrically coupled to the printed circuit board.
According to the narrow-frame liquid crystal module provided by the embodiment of the invention, a gap exists between the flexible packaging assembly and the middle frame.
According to the narrow-bezel liquid crystal module provided by the embodiment of the invention, a gap exists between the flexible packaging assembly and the front bezel.
A display device is characterized by comprising the narrow-frame liquid crystal module.
The invention has the beneficial effects that:
by sticking magnetic substances with opposite magnetism on the middle frame and the COF, the COF is positioned at the middle suspension position of the front frame and the middle frame due to the mutual repulsive force action of the two magnetic substances, so that the COF is not contacted with the edge of the glass substrate, the effects of the reciprocating motion of the front frame on the friction disturbance and the like of the surface of the COF are avoided, and the COF is protected from being damaged. The problem that the front end of the glass substrate, which is not edged, is cut towards the COF due to disturbance of the front frame in the impact testing process, so that the COF is broken is effectively solved, and the problems of taste display and the like caused by the COF breakage are greatly reduced.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a display panel according to the prior art.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
Referring to fig. 1, fig. 1 is a schematic view of an overall structure of a narrow-frame liquid crystal module according to the present embodiment, and it can be seen from fig. 1 that:
the invention relates to a narrow-frame liquid crystal module 100, which comprises:
the display panel 110 includes an upper glass substrate 111 and a lower glass substrate 112, wherein a liquid crystal layer (not shown) is disposed between the upper glass substrate 111 and the lower glass substrate 112, and a transparent surface circuit (not shown) on the upper surface of the lower glass substrate 112 has a connecting portion for electrical connection. In the embodiment of the present invention, the connection portion may also be located on the lower surface or the end surface of the lower glass substrate 112, but is not limited thereto. The backlight module 120 includes an optical film 121, a back plate 122, and at least one middle frame 123, wherein the optical film 121 is located below the lower glass substrate 112, and the back plate 122 is used to support the optical film 121.
In the narrow bezel lcd module 100 of the present invention, the middle bezel 123 is usually made of plastic or is formed by combining plastic and metal plate, the middle bezel 123 has a main portion 1232 and a shoulder portion 1231, wherein the main portion 1232 of the middle bezel 123 is an upright plate surrounding the back plate 122, the shoulder portion 1231 of the middle bezel 123 is formed by horizontally extending the main portion 1232 inward and is used for carrying the display panel 110, and the longitudinal section of the middle bezel 123 is in an inverted "L" shape. The front frame 160 surrounds the middle frame 123 and is used for fixing the display panel 110, and an accommodating space is formed between the middle frame 123 and the front frame 160. In the embodiment of the invention, the flexible package assembly 150 is located in the accommodating space. One end of the flexible package assembly 150 is electrically coupled to the connecting portion on the upper surface of the lower glass substrate 112, and the other end is electrically coupled to a Printed Circuit Board (PCB) 130. The pcb 130 is disposed on the outer surface of the body portion 1232 of the middle frame 123.
In the narrow-bezel liquid crystal module 110 of the present invention, two magnetic materials 140 are disposed, and in the present embodiment, a magnet is taken as an example. The first magnet 141 is adhered or coated on the connection portion of the body 1231 and the shoulder 1231 of the middle frame 123, and the second magnet 142 is adhered or coated on the inner surface of the flexible package assembly 150 after bending. The polarities of the first magnet 141 and the second magnet 142 are opposite, and the positions of the first magnet 141 and the second magnet 142 are corresponding, so that the first magnet 141 and the second magnet 142 generate mutually repulsive thrust. After the two ends of the flexible package assembly 150 are electrically connected to the lower glass substrate 112 and the printed circuit board 130, a gap exists between the flexible package assembly 150 and the middle frame 123 and the front frame 160. The flexible package assembly 150 is located at the middle suspended position between the front frame 160 and the middle frame 123 due to the mutual repulsive force of the two magnetic materials 140, and not only does not contact with the edge of the lower glass substrate 112, but also eliminates the effects of friction disturbance and the like on the surface of the flexible package assembly 150 caused by the reciprocating motion of the front frame 160, so that the flexible package assembly 150 can be protected from being damaged.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (7)
1. The utility model provides a narrow frame LCD module which characterized in that, narrow frame LCD module includes:
a display panel including at least an upper glass substrate and a lower glass substrate;
the backlight module comprises an optical film, a back plate and at least one middle frame, wherein the back plate bears the optical film, and the middle frame surrounds the back plate and bears the display panel;
the printed circuit board is positioned on the surface of the middle frame;
the front frame surrounds the middle frame and is used for fixing the display panel, and an accommodating space is formed between the front frame and the middle frame;
the flexible packaging assembly is positioned in the accommodating space;
the two magnetic substances are respectively positioned on the surface of the middle frame and the flexible packaging assembly;
the two magnetic substances comprise a first magnet and a second magnet;
the first magnet and the second magnet are arranged at corresponding positions;
the opposite faces of the first magnet and the second magnet have opposite polarities so as to generate mutually repulsive thrust.
2. The narrow-bezel liquid crystal module of claim 1, wherein the first magnet is adhered or coated on an outer surface of the middle frame.
3. The narrow bezel liquid crystal module of claim 1, wherein the second magnet is adhered or coated on the inside surface of the flexible package after bending.
4. The narrow-bezel liquid crystal module of claim 1, wherein one end of the flexible package assembly is electrically coupled to the lower glass substrate and the other end is electrically coupled to the printed circuit board.
5. The narrow bezel liquid crystal module of claim 1, wherein a gap exists between the flexible package assembly and the bezel.
6. The narrow bezel liquid crystal module of claim 5, wherein a gap exists between the flexible package assembly and the front frame.
7. A display device, comprising the narrow-bezel liquid crystal module as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344065.2A CN109407378B (en) | 2018-11-13 | 2018-11-13 | COF packaging structure of narrow-frame liquid crystal module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811344065.2A CN109407378B (en) | 2018-11-13 | 2018-11-13 | COF packaging structure of narrow-frame liquid crystal module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109407378A CN109407378A (en) | 2019-03-01 |
| CN109407378B true CN109407378B (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811344065.2A Active CN109407378B (en) | 2018-11-13 | 2018-11-13 | COF packaging structure of narrow-frame liquid crystal module |
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| Country | Link |
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| CN (1) | CN109407378B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058441B (en) * | 2019-05-22 | 2021-01-15 | 惠州市华星光电技术有限公司 | Liquid crystal display module, display device and manufacturing method |
| CN111638609B (en) * | 2020-06-12 | 2023-05-12 | 海信视像科技股份有限公司 | Display device |
| CN114935844B (en) * | 2022-05-26 | 2023-05-26 | 惠科股份有限公司 | Display device |
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| KR20080010203A (en) * | 2006-07-26 | 2008-01-30 | 삼성전자주식회사 | Display device |
| CN101464572A (en) * | 2008-12-08 | 2009-06-24 | 友达光电股份有限公司 | LCD module and assembling method thereof |
| CN102608781A (en) * | 2012-03-26 | 2012-07-25 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) module and LCD |
| CN103527979A (en) * | 2013-10-12 | 2014-01-22 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN104932131A (en) * | 2015-07-06 | 2015-09-23 | 武汉华星光电技术有限公司 | Liquid crystal module and liquid crystal display device including same |
| CN106707577A (en) * | 2017-01-22 | 2017-05-24 | 努比亚技术有限公司 | Display screen module and terminal |
| CN207663187U (en) * | 2017-12-06 | 2018-07-27 | 捷星显示科技（福建）有限公司 | A kind of narrow frame display of four side Rimless |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5026690B2 (en) * | 2005-11-21 | 2012-09-12 | 株式会社ジャパンディスプレイイースト | Display device |
| US20090027583A1 (en) * | 2007-07-27 | 2009-01-29 | Mcbroom Michael David | Magnetic-based visual display cover arrangement |
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2018
- 2018-11-13 CN CN201811344065.2A patent/CN109407378B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080010203A (en) * | 2006-07-26 | 2008-01-30 | 삼성전자주식회사 | Display device |
| CN101464572A (en) * | 2008-12-08 | 2009-06-24 | 友达光电股份有限公司 | LCD module and assembling method thereof |
| CN102608781A (en) * | 2012-03-26 | 2012-07-25 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) module and LCD |
| CN103527979A (en) * | 2013-10-12 | 2014-01-22 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN104932131A (en) * | 2015-07-06 | 2015-09-23 | 武汉华星光电技术有限公司 | Liquid crystal module and liquid crystal display device including same |
| CN106707577A (en) * | 2017-01-22 | 2017-05-24 | 努比亚技术有限公司 | Display screen module and terminal |
| CN207663187U (en) * | 2017-12-06 | 2018-07-27 | 捷星显示科技（福建）有限公司 | A kind of narrow frame display of four side Rimless |
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| CN109407378A (en) | 2019-03-01 |
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