CN106019717B - Backlight module, liquid crystal display module and liquid crystal display device - Google Patents
Backlight module, liquid crystal display module and liquid crystal display device Download PDFInfo
- Publication number
- CN106019717B CN106019717B CN201610628787.5A CN201610628787A CN106019717B CN 106019717 B CN106019717 B CN 106019717B CN 201610628787 A CN201610628787 A CN 201610628787A CN 106019717 B CN106019717 B CN 106019717B
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- light
- iron frame
- backlight module
- liquid crystal
- crystal display
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F1/00—Preventing the formation of electrostatic charges
-
- 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 backlight module, which comprises: the light-emitting device comprises an iron frame, a rubber frame arranged on the iron frame, a light guide plate arranged in the iron frame, a reflecting sheet arranged between the iron frame and the light guide plate, and a light-emitting assembly arranged in the iron frame, wherein the light-emitting assembly is close to the rubber frame and is positioned on one side of the reflecting sheet opposite to the iron frame, an insulating layer is arranged on the area, opposite to the light-emitting assembly, of the iron frame, and the reflecting sheet completely covers the light-emitting assembly to isolate the iron frame from the light-emitting assembly. The invention also provides a liquid crystal display module adopting the backlight module and a liquid crystal display device adopting the liquid crystal display module. The invention has simple structural design, and the area of the iron frame opposite to the light-emitting component is provided with the insulating layer, and the reflecting sheet completely covers the light-emitting component, so that the iron frame is isolated from the light-emitting component, and the light-emitting component can be effectively prevented from being damaged by static electricity.
Description
Technical Field
The present invention relates to the field of liquid crystal display technology, and in particular, to a backlight module, a liquid crystal display module and a liquid crystal display device.
Background
With the rapid development of network and radio communication technologies, informatization is becoming popular in individuals, so that portable information products such as notebook computers, mobile phones, digital cameras, personal data assistants, etc. are rapidly developed and grown. The liquid crystal display has wide application due to the advantages of thin body, power saving, no radiation and the like, and promotes the development of network and radio communication technology. At present, mobile phones, digital cameras and notebook computers all develop towards ultra-thin, and the development process in the thinning direction is accelerated in the touch industry and the LCM (LCD Module) industry.
The LCM generally includes a liquid crystal panel and a backlight module connected to the liquid crystal panel, since the liquid crystal panel does not emit light, and a light source provided by the backlight module is required to normally display an image, therefore, the backlight module becomes one of key components of the liquid crystal display device, but the space of the backlight module is limited, after the LCM is thinned as a whole, the thickness of the backlight module is also affected, resulting in a decrease in the distance between a light emitting component and an iron frame in the backlight module, and since the light emitting component (usually a light emitting diode, i.e., an LED) has relatively weak electrostatic protection, the light emitting component is easily damaged by static electricity in the use process, and finally the display performance of the product is affected.
Disclosure of Invention
In view of the above, it is necessary to provide a backlight module, a liquid crystal display module and a liquid crystal display device with simple structure and good antistatic effect.
The invention provides a backlight module, comprising: the light-emitting device comprises an iron frame, a rubber frame arranged on the iron frame, a light guide plate arranged in the iron frame, a reflecting sheet arranged between the iron frame and the light guide plate, and a light-emitting assembly arranged in the iron frame, wherein the light-emitting assembly is close to the rubber frame and is positioned on one side of the reflecting sheet opposite to the iron frame, an insulating layer is arranged on the area, opposite to the light-emitting assembly, of the iron frame, and the reflecting sheet completely covers the light-emitting assembly to isolate the iron frame from the light-emitting assembly.
The backlight module is simple in structural design, and the insulating layer is arranged in the area, opposite to the light-emitting assembly, of the iron frame, static electricity of the iron frame can be effectively prevented from being led into the light-emitting assembly, the reflecting sheet completely covers the light-emitting assembly, the iron frame is isolated from the light-emitting assembly, and therefore the iron frame is further isolated from the light-emitting assembly, and the light-emitting assembly is effectively prevented from being damaged by static electricity.
The invention provides a liquid crystal display module applying the backlight module, which comprises a liquid crystal panel and the backlight module.
The invention also provides a liquid crystal display device applying the liquid crystal display module.
The backlight module is characterized in that the insulating layer is a transparent insulating layer.
The backlight module comprises the insulating layer, wherein the thickness of the insulating layer is less than or equal to 0.5mm.
The backlight module is characterized in that the insulating layer is transparent insulating glue or transparent insulating ink.
The backlight module comprises a light emitting component and a light emitting diode.
The backlight module further comprises an optical film, wherein the optical film is arranged on the light emitting surface of the light guide plate.
The backlight module is characterized in that the optical film is a diffusion sheet or a brightness enhancement sheet.
The backlight module comprises the optical film and the brightness enhancement film.
Drawings
Fig. 1 is a schematic diagram illustrating a backlight module according to a first embodiment of the invention;
fig. 2 is a schematic stacking diagram of a backlight module according to a second embodiment of the invention.
Description of the main reference signs
The light guide plates 30, 30a; reflective sheets 40, 40a
A light emitting assembly 50, 50a; insulating layers 60, 60a
An optical film 70a;
the invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In the prior art, after the integral thinning of the LCM, the thickness of the backlight module is also affected, so that the distance between the light-emitting component and the iron frame in the backlight module is shortened, and the light-emitting component is easily damaged by static electricity in the use process due to the relatively weak static electricity protection of the light-emitting component, so that the display performance of a product is finally affected, and the existing solution is to add an additional grounding circuit to dissipate the serial static electricity. The iron frame, set up in glue frame on the iron frame, set up in light guide plate in the iron frame, set up in iron frame with reflector plate between the light guide plate, set up in luminous subassembly in the iron frame, luminous subassembly is close to glue the frame, just luminous subassembly is located the reflector plate is dorsad the one side of iron frame, the iron frame is just to the regional insulating layer that is equipped with of luminous subassembly, the reflector plate covers completely luminous subassembly, makes the iron frame with luminous subassembly keeps apart, because the iron frame is just to the regional insulating layer that is equipped with of luminous subassembly, can effectively prevent the static cluster of iron frame is gone into luminous subassembly, the reflector plate of adding covers completely luminous subassembly, make the iron frame with luminous subassembly keeps apart, consequently further kept apart the iron frame with luminous subassembly has effectively avoided luminous subassembly is by static to hit the wound, and this antistatic ability of application structure design is simple, and actual static test result surface is strong.
The foregoing is a core idea of the present invention, and in order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of a specific embodiment of the present invention will be given below with reference to the accompanying drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and the like are used herein for descriptive purposes only and not to indicate or imply that the apparatus or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a backlight module provided in a first embodiment of the present application includes:
the iron frame 10 is a bracket for fixing a liquid crystal display or a backlight source, is mainly formed by stamping materials such as a cold-rolled sheet, stainless steel, copper oxide and the like, and has the effects of strengthening the strength and improving the shielding property for the backlight module;
the plastic frame 20 disposed on the iron frame 10, the plastic frame 20 is made of thermoplastic plastics such as PC, PMMA, ABS, the thermoplastic plastics are usually granular at normal temperature, and are melted after being heated to a certain temperature, and solidified and formed after being cooled, and melted again after being heated again, so that the plastic frame can be plasticized and formed again;
a light guide plate 30 provided in the iron frame 10;
a reflection sheet 40 disposed between the iron frame 10 and the light guide plate 30;
the light-emitting assembly 50 is arranged in the iron frame 10, the light-emitting assembly 50 adopts a light-emitting diode, the light-emitting assembly 50 is close to the rubber frame 20, the light-emitting assembly 50 is positioned on one side of the reflecting sheet 40, which is opposite to the iron frame 10, an insulating layer 60 is arranged in a region of the iron frame 10, which is opposite to the light-emitting assembly 50, and the reflecting sheet 40 completely covers the light-emitting assembly 50, so that the iron frame 10 and the light-emitting assembly 50 are isolated. The insulating layer 60 is a transparent insulating layer, specifically, transparent insulating glue or transparent insulating ink, if the transparent insulating glue is adopted, the transparent insulating glue can be realized in a pasting mode, if the transparent insulating ink is adopted, the transparent insulating glue can be realized in a printing mode, and specifically, in the embodiment, the insulating layer 60 is adopted; the thickness of the insulating layer 60 is 0.5mm or less to prevent the insulating layer 60 from being excessively thick, which may affect the assembly of the iron frame 10 and the reflection sheet 40, and in this embodiment, the thickness of the insulating layer 60 is 0.35mm.
In this embodiment, the highest sustainable power of the led used by the light emitting assembly 50 is 3.5KV, so in the practical test, the experimental conditions of the electrostatic test are selected as follows: the final results indicate that the electrostatic test results at each location were PASS for +/-3.5LV, 0.1s, 5 times.
In order to further illustrate the application of the backlight module, the invention also provides a liquid crystal display module applying the backlight module, which comprises a liquid crystal panel and the backlight module.
Meanwhile, the invention also provides a liquid crystal display device applying the liquid crystal display module.
Referring to fig. 2, a backlight module provided in a second embodiment of the present application includes:
a frame 10a;
a rubber frame 20a provided on the iron frame 10a;
a light guide plate 30a provided in the iron frame 10a;
a reflection sheet 40a provided between the iron frame 10a and the light guide plate 30a;
the light emitting assembly 50a is arranged in the iron frame 10a, the light emitting assembly 50a adopts a light emitting diode, the light emitting assembly 50a is close to the rubber frame 20a, the light emitting assembly 50a is positioned on one side of the reflecting sheet 40a, which is opposite to the iron frame 10a, an insulating layer 60a is arranged in a region of the iron frame 10a, which is opposite to the light emitting assembly 50a, the reflecting sheet 40a completely covers the light emitting assembly 50a, so that the iron frame 10a is isolated from the light emitting assembly 50a, the insulating layer 60a is transparent insulating ink, and the thickness of the insulating layer 60a is 0.4mm. The backlight module in this embodiment further includes an optical film 70a for enhancing the optical performance of the backlight module, where the optical film 70a is disposed on the light emitting surface of the light guide plate 30a, that is, the optical film 70a is disposed on a surface of the light guide plate 30a facing away from the reflective sheet 40a, and the optical film 70a is a diffusion sheet or a brightness enhancement sheet or a combination of a diffusion sheet and a brightness enhancement sheet, and in this embodiment, the optical film 70a is a diffusion sheet.
Compared with the prior art, the backlight module provided by the invention has the advantages that the area, opposite to the light-emitting assembly, of the iron frame is provided with the insulating layer, so that static electricity of the iron frame can be effectively prevented from being connected into the light-emitting assembly in series, and the reflecting sheet completely covers the light-emitting assembly to isolate the iron frame from the light-emitting assembly, so that the iron frame and the light-emitting assembly are further isolated, and the light-emitting assembly is effectively prevented from being damaged by static electricity.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A backlight module, comprising: the light-emitting device comprises an iron frame, a rubber frame arranged on the iron frame, a light guide plate arranged in the iron frame, a reflecting sheet arranged between the iron frame and the light guide plate, and a light-emitting component arranged in the iron frame, wherein the light-emitting component is close to the rubber frame and is positioned at one side of the reflecting sheet opposite to the iron frame, an insulating layer is arranged in a region, opposite to the light-emitting component, of the iron frame, and the reflecting sheet completely covers the light-emitting component to isolate the iron frame from the light-emitting component;
the insulating layer is a transparent insulating layer, and the thickness of the insulating layer is 0.35mm.
2. A backlight module according to claim 1, wherein the insulating layer is transparent insulating glue or transparent insulating ink.
3. The backlight module according to claim 1, wherein the light emitting component is a light emitting diode.
4. The backlight module according to claim 1, further comprising an optical film disposed on the light emitting surface of the light guide plate.
5. The backlight module according to claim 4, wherein the optical film is a diffusion sheet or a brightness enhancement sheet.
6. A backlight module according to claim 5, wherein the optical film comprises a diffusion sheet and a brightness enhancing sheet.
7. A liquid crystal display module comprising a liquid crystal panel, and further comprising the backlight module of any one of claims 1 to 6.
8. A liquid crystal display device comprising the liquid crystal display module of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628787.5A CN106019717B (en) | 2016-08-03 | 2016-08-03 | Backlight module, liquid crystal display module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628787.5A CN106019717B (en) | 2016-08-03 | 2016-08-03 | Backlight module, liquid crystal display module and liquid crystal display device |
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| Publication Number | Publication Date |
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| CN106019717A CN106019717A (en) | 2016-10-12 |
| CN106019717B true CN106019717B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610628787.5A Active CN106019717B (en) | 2016-08-03 | 2016-08-03 | Backlight module, liquid crystal display module and liquid crystal display device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188774A (en) * | 2018-10-31 | 2019-01-11 | 厦门天马微电子有限公司 | A kind of backlight module and preparation method thereof, display module |
| CN109192068A (en) * | 2018-11-02 | 2019-01-11 | 厦门天马微电子有限公司 | A kind of backlight module and electronic equipment |
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| CN105717708A (en) * | 2016-04-29 | 2016-06-29 | 上海天马微电子有限公司 | Backlight module, display module and display device |
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| KR100847821B1 (en) * | 2002-06-25 | 2008-07-23 | 엘지디스플레이 주식회사 | Liquid Cristal Device Module |
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| CN201487705U (en) * | 2009-07-24 | 2010-05-26 | 康佳集团股份有限公司 | LED side backlight module group structure |
| CN201477323U (en) * | 2009-08-14 | 2010-05-19 | 和硕联合科技股份有限公司 | Anti-static discharging display panel module |
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| CN204314573U (en) * | 2014-12-22 | 2015-05-06 | 深圳市隆利科技发展有限公司 | Backlight module |
| CN105388654A (en) * | 2015-11-14 | 2016-03-09 | 合肥骇虫信息科技有限公司 | Vehicle-mounted liquid crystal display structure |
| CN205899206U (en) * | 2016-08-03 | 2017-01-18 | 江西联思触控技术有限公司 | Backlight unit , liquid crystal display module and liquid crystal disply device |
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| JPH07159781A (en) * | 1993-12-07 | 1995-06-23 | Rohm Co Ltd | Liquid crystal display device and anisotropically conductive light emitting layer |
| TW200912467A (en) * | 2007-09-14 | 2009-03-16 | Innolux Display Corp | Backlight module and liquid crystal display using same |
| CN102954398A (en) * | 2011-08-24 | 2013-03-06 | Lg伊诺特有限公司 | Light emitting module and backlight unit having the same |
| CN205374926U (en) * | 2015-12-26 | 2016-07-06 | 东莞市泰宇达光电科技有限公司 | Liquid crystal display module with it is antistatic |
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| CN106019717A (en) | 2016-10-12 |
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