CN112198715A - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN112198715A CN112198715A CN202011154510.6A CN202011154510A CN112198715A CN 112198715 A CN112198715 A CN 112198715A CN 202011154510 A CN202011154510 A CN 202011154510A CN 112198715 A CN112198715 A CN 112198715A
- Authority
- CN
- China
- Prior art keywords
- shading
- display device
- backlight module
- display panel
- light
- 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
Links
Images
Classifications
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
Abstract
The invention discloses a display device, which comprises a backlight module, a light-emitting module and a light-emitting module, wherein the backlight module comprises a light-emitting side; the display panel is arranged on the light emitting side of the backlight module; the first shading units are distributed on the light emitting side of the backlight module at intervals and are positioned at the edge of the light emitting side; and the second shading units are attached to the side surface of the display panel at intervals, and each second shading unit is connected with two adjacent first shading units. The display device has the beneficial effects that the second shading units are coated on the side surfaces of the backlight module and the display panel at intervals, when the display device is in a cold-hot alternation condition, the second shading units distributed at intervals can adjust the pulling stress caused by the expansion caused by heat and contraction caused by cold of the backlight module and the display panel, the second shading units are made of hot melt adhesive materials, and the hot melt adhesive materials in a flowing state can be bonded with the first shading units distributed at intervals in the coating process, so that a closed annular shading layer is formed, and the shading performance of the display device is improved.
Description
Technical Field
The present invention relates to a display device.
Background
Along with OLED product technology constantly progresses, LCD product living space is constantly compressed, and the LCD product is seeking technological breakthrough constantly from this, and the narrow frame of limit is exactly one of its breakthrough direction, nevertheless because of receiving the influence of backlight unit equipment, need increase the openning and glue and carry out the adhesion with backlight unit and LCD product together. The realization that has the extremely narrow frame product of very big restriction of openning is glued, and the function that the openning was glued lies in sheltering from that the backlight unit light source leaks and backlight unit and LCD base plate's adhesion is in the same place, and for guaranteeing two above effects of openning glue, its width can receive certain restriction, can't realize extremely narrowing.
In order to realize the realization of the ultra-narrow frame LCD product, a side edge glue sealing process is already carried out in the industry, and the LCD substrate and the backlight module are bonded together by using the adhesion effect of the hot melt adhesive and are matched with the ultra-narrow opening sub-glue, so that the effects of shielding the backlight light source from leaking and adhering the backlight/LCD substrate are achieved. The method comprises the steps of heating a hot melt adhesive into a liquid state through a heating pump valve of a gluing machine, uniformly coating the hot melt adhesive on a bonding part of a backlight and an LCD substrate by using a gluing needle valve under a certain pressure, and cooling at room temperature to form a compact sealing layer; however, in the use process of the uniform adhesive tape, the hot and cold are alternated, and the hot melt adhesive has certain phenomena of expansion with heat and contraction with cold, so that the hot melt adhesive is easily separated from the backlight, and the backlight peeling is caused to be abnormal.
Disclosure of Invention
The invention provides a display device, which is used for solving the technical problem that a backlight module in the prior art is influenced by expansion with heat and contraction with cold and generates pulling stress on hot melt adhesive, so that the hot melt adhesive is broken.
The technical scheme for solving the technical problems is as follows: the invention provides a display device, which comprises a backlight module, a light source and a display module, wherein the backlight module comprises a light emergent side; the display panel is arranged on the light emitting side of the backlight module; the first shading units are distributed on the light emitting side of the backlight module at intervals and are positioned at the edge of the light emitting side; and the second shading units are attached to the side surface of the display panel at intervals, and each second shading unit is connected with two adjacent first shading units.
Further, the length of the first shading unit is 0.2-10 mm.
Further, the length of the first shading unit is 1-5 cm.
Furthermore, the display device further comprises a cover plate which is arranged on one side surface of the display panel far away from the backlight module.
Further, the display panel includes a display area and a non-display area, wherein the non-display area surrounds the display area; the first shading unit corresponds to the non-display area.
Furthermore, a gap is formed between every two adjacent first shading units, and the second shading units correspond to the gap.
Further, the length of the gap is smaller than that of the second light shielding unit.
Further, the orthographic projection of the display panel and the second shading unit on any horizontal plane is A, the orthographic projection of the cover plate on the horizontal plane is B, and A completely falls within the range of B.
Further, the display panel comprises at least one corner, the corner comprises two corner side surfaces, and the second shading unit is attached to the corner side surfaces.
Furthermore, the display device further comprises optical cement which is arranged between the cover plate and the display panel.
The display device has the beneficial effects that the second shading units are coated on the side surfaces of the backlight module and the display panel at intervals, when the display device is in a cold-hot alternation condition, the second shading units distributed at intervals can adjust the pulling stress caused by the expansion caused by heat and contraction caused by cold of the backlight module and the display panel, the second shading units are made of hot melt adhesive materials, and the hot melt adhesive materials in a flowing state can be bonded with the first shading units distributed at intervals in the coating process, so that a closed annular shading layer is formed, and the shading performance of the display device is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a side structural view of a display device in the embodiment.
Fig. 2 is a bottom view of the display panel and the cover plate in the embodiment.
The figures are labeled as follows:
a backlight module 100; a display panel 200;
a first light shielding unit 300; a second light shielding unit 400;
an optical adhesive 500; a cover plate 600;
a light exit side 101; a display area 201;
a non-display area 202.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
Examples
As shown in fig. 1, fig. 1 is a side structural view of a display device in the embodiment. In this embodiment, the display device of the invention includes a backlight module 100, a display panel 200, a first light-shielding unit 300, a second light-shielding unit 400, an optical adhesive 500, and a cover plate 600.
The backlight module 100 is used for providing a stable backlight source, a plurality of dot matrix LED chips are arranged inside the backlight module 100, and the light and dark display of a unit pixel is realized by controlling the on and off of a single LED chip, the backlight module 100 includes a light emitting side 101, all light rays of the backlight module 100 are emitted from the light emitting side 101, and the rest is opaque.
As shown in fig. 2, the display panel 200 is disposed above the backlight module 100, specifically, the back surface of the display panel 200 faces the light-emitting side 101, and the light emitted from the backlight module 100 enters the display panel 200 through the light-emitting side 101. In order to ensure the display quality of the display panel 200, the display panel 200 includes a display area 201 and a non-display area 202, the display area 201 is used for displaying images normally, the non-display area 202 is used for shielding the wiring, and in order to ensure that the whole display area 201 can display images normally, the light emitting side 101 of the backlight module 100 needs to be larger than the display area 201 of the display panel 200.
In order to prevent backlight unit 100 and display panel 200's edge light leak, generally speaking, can glue at the edge coating round openning of backlight unit 100's light-emitting side 101, backlight unit 100 and display panel 200 are pasted respectively to openning two sides, be used for preventing backlight unit 100's light leak from display panel 200 edge, however, in order to ensure the shading effect that openning was glued, it needs to reach certain width, and display panel 200's non-display area 202 needs "cover" openning again and glues corresponding region, this very big influence extremely narrow frame display device's realization.
In this embodiment, the first light-shielding units 300 distributed in a dotted manner are used to replace a common annular adhesive, specifically, the light-emitting side 101 of the backlight module 100 is rectangular, and includes four rectangular sides and four corners, wherein the four rectangular sides are connected end to end, the first light-shielding units 300 are distributed on the rectangular sides at intervals, and the gap between two adjacent first light-shielding units 300 is 0.5-4.5 mm.
In order to further shield the backlight module 100 and the display panel 200 from light, in the embodiment, the second light-shielding units 400 are added to the side surfaces of the backlight module 100 and the display panel, the second light-shielding units 400 cover the side surfaces of the display panel 200 and a part of the side surfaces of the backlight module 100, the second light-shielding units 400 are distributed at intervals, and the length of each second light-shielding unit 400 is 1-5 cm. The second light shielding unit 400 corresponds to the gap between two first light shielding units 300 more than the gap between two adjacent first light shielding units 300, thereby facilitating the connection of the second light shielding unit 400 and the first light shielding units 300. Because the first light-shielding unit 300 is disposed between the backlight module 100 and the display panel 200 and located at the edge of the light-emitting side 101 of the backlight module 100, the first light-shielding unit 300 and the second light-shielding unit 400 are bonded to form a closed ring, thereby preventing the backlight module 100 and the display panel 200 from light leakage.
Specifically, the second light shielding unit 400 is a hot melt adhesive material, and in the preparation process, the hot melt adhesive material is heated into a liquid state by a heating pump valve of a glue spreader, under a certain pressure condition, the hot melt adhesive material is uniformly coated on the side surfaces of the display panel 200 and the backlight module 100 by a glue spreading needle valve, because the second light shielding unit 400 is in interval distribution, when the display device is in a cold-hot alternation condition, the backlight module 100 generates pulling stress on the second light shielding unit 400 due to expansion and contraction, the second light shielding unit 400 in interval distribution can disperse the pulling stress of the backlight module 100 to each segment, thereby avoiding the fracture of the second light shielding unit 400 at the joint of the backlight module 100 and the display panel 200 and causing the technical problem of light leakage of the display device.
Since the hot melt adhesive material has a certain ductility, when the second light shielding unit 400 is coated, the second light shielding unit 400 and the first light shielding unit 300 can be bonded by only applying a small pressure, and the preparation method is simple and beneficial to the mechanized production of the display device.
In order to avoid light leakage at the corners of the light-emitting side 101 of the backlight module 100, in the embodiment, a whole second light-shielding unit 400 is directly attached to each corner, so that the corners are covered by only the second light-shielding unit 400, and the second light-shielding unit 400 and the first light-shielding unit 300 are prevented from being broken at the bonding positions due to the large influence of thermal expansion and contraction on the corners.
The cover plate 600 is disposed on a side surface of the display panel 200 away from the backlight module 100, wherein the cover plate 600 is a hard transparent glass substrate, the edge of which is larger than the edge of the display panel 200, so as to protect the display panel 200 from the side surface of the backlight module 100, i.e., the display surface of the display panel 200 is not invaded by external moisture or impurities, and meanwhile, the hard material of the cover plate 600 can also withstand a part of external impact, thereby prolonging the service life of the display device.
A layer of optical cement 500 is disposed between the cover plate 600 and the panel 200, and the optical cement 500 is used to bond the cover plate 600 and the display panel 200 and prevent them from being separated from each other.
One side surface of the second light shielding unit 400 is attached to the cover plate 600, and the technical effects of fixing the cover plate 600 and shielding light are achieved, so that the service life of the second light shielding unit 400 is prolonged, and the second light shielding unit 400 does not exceed the edge of the cover plate 600.
The beneficial effects of this embodiment lie in, the display device of this embodiment coats the side of backlight unit and display panel with the second shading unit interval, when display device is in cold and hot alternating condition, the stress of dragging that the expend with heat and contract with cold of backlight unit and display panel brought can be adjusted to interval distribution's second shading unit, second shading unit is the hot melt adhesive material, in the coating process, the hot melt adhesive material of flow state can bond with the first shading unit of same interval distribution, thereby form confined annular light shield layer, display device's shading performance is promoted.
The above description of the embodiments is only for assisting understanding of the technical solutions and the core ideas thereof; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display device is characterized by comprising
The backlight module comprises a light emitting side;
the display panel is arranged on the light emitting side of the backlight module;
the first shading units are distributed on the light emitting side of the backlight module at intervals and are positioned at the edge of the light emitting side;
and the second shading units are attached to the side surfaces of the display panel and the backlight module at intervals, and each second shading unit is connected with two adjacent first shading units.
2. The display device according to claim 1,
the length of the first shading unit is 0.2-10 mm.
3. The display device according to claim 1,
the length of the first shading unit is 1-5 cm.
4. The display device according to claim 1, further comprising
The cover plate is arranged on one side surface of the display panel far away from the backlight module.
5. The display device according to claim 4, further comprising
And the optical cement is arranged between the cover plate and the display panel.
6. The display device according to claim 1,
the display panel comprises a display area and a non-display area, wherein the non-display area surrounds the display area;
the first shading unit corresponds to the non-display area.
7. The display device according to claim 1,
a gap is formed between every two adjacent first shading units, and the second shading units are opposite to the gap.
8. The display device according to claim 7,
the length of the gap is smaller than that of the second light shielding unit.
9. The display device according to claim 1,
the orthographic projection of the display panel and the second shading unit on any horizontal plane is A, the orthographic projection of the cover plate on the horizontal plane is B, and A completely falls in the range of B.
10. The display device according to claim 1,
the display panel comprises at least one corner, the corner comprises two corner side surfaces, and the second shading unit is attached to the corner side surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154510.6A CN112198715B (en) | 2020-10-26 | 2020-10-26 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154510.6A CN112198715B (en) | 2020-10-26 | 2020-10-26 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112198715A true CN112198715A (en) | 2021-01-08 |
| CN112198715B CN112198715B (en) | 2022-04-26 |
Family
ID=74011550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011154510.6A Active CN112198715B (en) | 2020-10-26 | 2020-10-26 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112198715B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415420A (en) * | 2022-01-18 | 2022-04-29 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN114509887A (en) * | 2022-02-09 | 2022-05-17 | 武汉华星光电技术有限公司 | Display device and method for manufacturing the same |
| CN114602748A (en) * | 2022-04-14 | 2022-06-10 | 睿合科技有限公司 | Hot melt adhesive dispensing process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000162436A (en) * | 1998-11-24 | 2000-06-16 | Nitto Denko Corp | Manufacturing method for phase difference film, optical member, and liquid crystal display device |
| JP2009117232A (en) * | 2007-11-08 | 2009-05-28 | Sharp Corp | Backlight unit, method of manufacturing backlight unit, and liquid crystal display device |
| CN204853129U (en) * | 2015-07-30 | 2015-12-09 | 厦门天马微电子有限公司 | Backlight unit and liquid crystal display module |
| CN110174791A (en) * | 2019-04-29 | 2019-08-27 | 厦门天马微电子有限公司 | Display module and display device |
| CN210222417U (en) * | 2019-06-21 | 2020-03-31 | 珠海晨新科技有限公司 | Narrow-frame display screen module, screen and terminal thereof |
-
2020
- 2020-10-26 CN CN202011154510.6A patent/CN112198715B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000162436A (en) * | 1998-11-24 | 2000-06-16 | Nitto Denko Corp | Manufacturing method for phase difference film, optical member, and liquid crystal display device |
| JP2009117232A (en) * | 2007-11-08 | 2009-05-28 | Sharp Corp | Backlight unit, method of manufacturing backlight unit, and liquid crystal display device |
| CN204853129U (en) * | 2015-07-30 | 2015-12-09 | 厦门天马微电子有限公司 | Backlight unit and liquid crystal display module |
| CN110174791A (en) * | 2019-04-29 | 2019-08-27 | 厦门天马微电子有限公司 | Display module and display device |
| CN210222417U (en) * | 2019-06-21 | 2020-03-31 | 珠海晨新科技有限公司 | Narrow-frame display screen module, screen and terminal thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415420A (en) * | 2022-01-18 | 2022-04-29 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN114509887A (en) * | 2022-02-09 | 2022-05-17 | 武汉华星光电技术有限公司 | Display device and method for manufacturing the same |
| CN114602748A (en) * | 2022-04-14 | 2022-06-10 | 睿合科技有限公司 | Hot melt adhesive dispensing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112198715B (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112198715B (en) | Display device | |
| KR102046766B1 (en) | Liquid crystal display device | |
| US8334953B2 (en) | Display device integral with protection plate, and display apparatus using the same | |
| US20190310510A1 (en) | Liquid crystal panel and liquid crystal display device | |
| WO2019148607A1 (en) | Method for manufacturing spliced display screen and spliced display screen | |
| CN104880839A (en) | Liquid crystal display device | |
| JP6412721B2 (en) | Liquid crystal display | |
| EP3734356B1 (en) | Lcd and display device | |
| JP2009198755A (en) | Method for manufacturing display device | |
| KR20110006623A (en) | A surface emitting unit and method for manufacturing the same | |
| CN104698629A (en) | Bottom chassis for display device and display device including the same | |
| KR20160028572A (en) | Display device | |
| CN106950737A (en) | Liquid crystal display | |
| KR101797001B1 (en) | Acf, fabricating method of display panel using the same, fpd module inculding the display panel | |
| KR102517072B1 (en) | Backlight unit and display device | |
| JP2005114789A (en) | Display device | |
| CN114488594A (en) | Display device | |
| JP3790321B2 (en) | Liquid crystal display | |
| KR20140011621A (en) | Backlight unit and liquid crystal display device using the same | |
| US20210333600A1 (en) | Display device | |
| TWI499837B (en) | Liquid crystal display apparatus and assembling method thereof | |
| KR102047223B1 (en) | Backlight unit using LED and liquid crystal display device including the same | |
| KR102458549B1 (en) | Display device | |
| JP2017126141A (en) | Display with touch panel | |
| CN110346966A (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |