CN113835265A - Liquid crystal module backlight source, liquid crystal module and electronic equipment - Google Patents
Liquid crystal module backlight source, liquid crystal module and electronic equipment Download PDFInfo
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- CN113835265A CN113835265A CN202111123613.0A CN202111123613A CN113835265A CN 113835265 A CN113835265 A CN 113835265A CN 202111123613 A CN202111123613 A CN 202111123613A CN 113835265 A CN113835265 A CN 113835265A
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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
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The embodiment of the present disclosure provides a liquid crystal module backlight, a liquid crystal module and an electronic device, the liquid crystal module backlight includes: the LED backlight module comprises a reflector plate, a light guide plate, an LED group, an iron frame and an LED flexible circuit board; the through hole is formed in the iron frame, the iron frame where the through hole is located is parallel to the light guide plate, the through hole is arranged in a position, where the reflecting sheet is not arranged, under the light guide plate, the opening size of the through hole allows the inclined bending structure of the LED flexible circuit board to pass through in an inclined mode, so that the first portion of the LED flexible circuit board is connected with the LED group inside the iron frame, and the second portion of the LED flexible circuit board extends to the outside of the iron frame. The position design of through-hole on this disclosed embodiment chase is in the bottom of whole backlight, and the chase that the through-hole belongs to is that one side chase parallel with the light guide plate, and the trompil setting is different on the chase perpendicular with the light guide plate with the correlation technique, and the through-hole that sets up in whole backlight bottom is kept away from LED group, can not bring the LED breakdown problem that the ESD leads to.
Description
Technical Field
The disclosure relates to the field of display, in particular to a liquid crystal module backlight source, a liquid crystal module and an electronic device.
Background
At present, the backlight source of the liquid crystal module of the mobile phone is normally installed and reversely installed, and the reversely installed scheme of the backlight source is favored because of the characteristic of a narrower lamp socket frame, and the scheme accords with the development trend of a full-face screen and a narrow frame in the market.
At present, the backlight flip-chip scheme basically adopts a side iron frame hole-breaking scheme that an LED FPC (LED flexible circuit board) extends out of a hole-breaking side of an iron frame and then is bent for 180 degrees to turn over the back of the backlight to be matched with a main FPC of a module, and the design causes the backlight ESD protection capability and the reliability water vapor protection capability to be weakened, and the specific introduction is as follows:
1. the position of the broken hole of the backlight side iron frame is close to the bonding pad or the LED leg of the light bar, and ESD static electricity released by the whole machine jumps into the bonding pad or the LED leg of the light bar from the broken hole of the iron frame, so that the LED breakdown is caused and the lamp is dead. Recent ESD tests of a single C/R terminal customer module require a lightbar (a lamp bar, namely a part of an LED FPC) to extend out of a position, a plurality of items have poor dead lamp performance, and the product performance is poor.
2. Due to the design of the iron frame broken holes at the extending positions of the LED FPC, the iron frame on the shading glue close to the side edge of the lamp holder is pasted with the wrapped wheat pull, and partial iron frame broken holes can be wrapped to prevent foreign matters or water vapor and the like from entering the backlight to cause defects. Due to the fact that the appearance tolerance and the assembly tolerance of the FPC, the iron frame and the edge covering Mylar material are involved, the edge covering Mylar distance at the broken hole can not be designed in an interference mode, at least 0.2mm of clearance needs to be reserved, the edge covering PET can not completely cover the position of the broken hole, and the risk that the membrane material absorbs wrinkles due to the fact that credible water vapor permeates is caused.
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a liquid crystal module backlight, a liquid crystal module and an electronic device, so as to solve the following problems in the prior art: in the backlight source of the liquid crystal module in the prior art, the LED FPC adopts the scheme that the LED FPC extends out of a hole on the side surface of an iron frame and then is bent for 180 degrees to turn over to the back surface of the backlight, and the design results in poor backlight ESD protection capability and low product performance.
In one aspect, an embodiment of the present disclosure provides a liquid crystal module backlight source, which at least includes: the LED backlight module comprises a reflector plate, a light guide plate, an LED group, an iron frame and an LED flexible circuit board; wherein, be provided with a through-hole on the chase, the chase that the through-hole belongs to with the light guide plate is parallel, the through-hole sets up do not set up under the light guide plate on the position of reflector plate, the trompil size of through-hole allows the slope of LED flexible circuit board structure of buckling passes through in order to make the first part of LED flexible circuit board be in inside the chase with LED group link, the second part of LED flexible circuit board extends to the chase is outside.
In some embodiments, further comprising: the reflecting sheet back glue, the iron frame side light bar glue, the light guide plate side light bar glue and the double-sided glue; the light guide plate side light bar glue is arranged on the first surface of the first part of the LED flexible circuit board and close to the LED group, and is used for pasting a part of the light guide plate on the first surface of the first part of the LED flexible circuit board; the iron frame side light bar adhesive is used for adhering the second surface of the first part to the inner wall of the iron frame; the double-sided adhesive tape is used for adhering a horizontal structure of a second part extending to the outside of the iron frame to the outer wall of the iron frame, and the horizontal structure of the second part is parallel to the first part.
In some embodiments, further comprising: and the single-sided adhesive is used for completely covering the position corresponding to the through hole and covering part of the outer wall of the iron frame and part of the horizontal structure.
In some embodiments, an end position of the reflector plate on the iron frame is shorter than an end position of the iron frame connected with the horizontal structure, so that the iron frame connected with the horizontal structure has a half-groove structure, wherein the end position is close to one end of the inclined bent structure.
In some embodiments, a highlight material is provided on an inner wall of the bezel portion of the half-groove structure to reflect light through the highlight material.
In some embodiments, a highlight material is disposed on an inner wall of the bezel in a predetermined range around the through hole, so as to reflect light through the highlight material.
In some embodiments, a white film is attached to the first face of the inclined bent structure to reflect light through the white film.
In some embodiments, further comprising: the device comprises a diffusion sheet, a lower prism, an upper prism, shading glue PET and diffusion black stripes; the diffusion sheet is arranged on one side, far away from the LED flexible circuit board, of the light guide plate, the diffusion sheet is provided with the lower prism and the diffusion black strips, the lower prism is provided with the upper prism, part of the shading glue covers part of the iron frame, the shading glue completely covers the diffusion black strips and the upper prism, and the shading glue is provided with the shading glue PET.
In some embodiments, the single-sided adhesive is a black single-sided adhesive.
On the other hand, the embodiment of the present disclosure provides a liquid crystal module, which at least includes: the backlight source of the liquid crystal module in any embodiment of the disclosure.
On the other hand, an embodiment of the present disclosure provides an electronic device, which at least includes: the liquid crystal module according to any one of the embodiments of the present disclosure.
The position design of through-hole on this disclosed embodiment chase is in the bottom of whole backlight, and the chase that the through-hole belongs to is that one side chase parallel with the light guide plate, and the trompil setting is different on chase perpendicular with the light guide plate with the correlation technique, keeps away from LED group at the through-hole that whole backlight bottom set up, can not bring the LED breakdown problem that the ESD leads to, promotes the life of backlight.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional side view of a liquid crystal module backlight provided in the related art;
FIG. 2 is a front view of a backlight profile of a related art LED FPC extended position;
FIG. 3 is a bottom view of the backlight profile of the extended position of the LED FPC provided in the related art;
FIG. 4 is a backlight outline isometric view of a related art LED FPC extended position;
FIG. 5 is a schematic diagram of an electrostatic jump-in mechanism provided in the related art;
FIG. 6 is a schematic diagram of a vapor permeation mechanism provided in the related art;
FIG. 7 is a first structural schematic diagram illustrating a cross-sectional side view of a backlight source of a liquid crystal module according to an embodiment of the present disclosure;
FIG. 8 is a second schematic structural diagram illustrating a cross-sectional side view of a backlight source of a liquid crystal module according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram three of a cross-sectional side view of a backlight source of a liquid crystal module provided in the embodiment of the present disclosure;
fig. 10 is a partial front view of a backlight source of a liquid crystal module provided in an embodiment of the present disclosure;
fig. 11 is a partial front view of a backlight source of a liquid crystal module according to an embodiment of the disclosure;
fig. 12 is a third partial front view of a backlight source of a liquid crystal module provided in an embodiment of the disclosure;
fig. 13 is a schematic cross-sectional view of a backlight source of a liquid crystal module according to an embodiment of the disclosure;
FIG. 14 is a schematic illustration of an operation provided by an embodiment of the present disclosure;
FIG. 15 is a schematic diagram illustrating the effect provided by the embodiments of the present disclosure;
fig. 16 is a back view of the liquid crystal module backlight source and the main FPC provided in the embodiment of the present disclosure when they are matched.
Reference numerals:
1-reflector plate, 2-reflector plate back adhesive, 3-light guide plate, 4-diffusion sheet, 5-lower prism, 6-upper prism, 7-light shielding adhesive, 8-light shielding adhesive PET, 9-diffusion black strip, 10-LED group, 11-iron frame side lamp strip adhesive, 12-light guide plate side lamp strip adhesive, 13-iron frame, 14-LED flexible circuit board, 15-double faced adhesive, 16-single faced adhesive, 17-main FPC of liquid crystal module, 18-highlight material, 19-white film, 20-release paper auxiliary lug, 21-double faced adhesive for filling section difference of assembling TFOG and BLU, and 22-edge-covered Mylar.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
As shown in fig. 1, in the current backlight flip-chip scheme, a side bezel hole-breaking scheme is basically adopted, and an LED FPC extends out from a side hole of a bezel and is bent by 180 degrees to turn over the back of the backlight to match with a main FPC of a module. Fig. 2 to 4 show the backlight appearance in the LED FPC extended position, in which fig. 2 is a front view, fig. 3 is a bottom view, and fig. 4 is an isometric view. 21 is a double-sided adhesive tape for filling the section difference of TFOG and BLU assembly; 22 is edge-covered mylar, and has the function of enabling the light-shielding glue at the side of the lamp holder to be bonded with the iron frame more firmly; 7 is shading glue; 13 is an iron frame; 10 is an LED group; 15 is double-sided adhesive tape for bonding the iron frame and the light bar; 14 is a light bar (second part of LED flexible circuit board).
The above design results in a reduced backlight ESD protection and dependable moisture protection.
Fig. 5 is a schematic diagram of a static electricity jumping mechanism, a broken hole of the backlight side frame is closer to a pad or an LED leg of the light bar, and ESD static electricity released by the whole machine jumps into the pad or the LED leg of the light bar from the broken hole of the frame, so that the LED breakdown and the lamp death occur. Fig. 6 is a schematic diagram of a water vapor permeation mechanism, and due to the design of the iron frame broken holes at the extending positions of the LED FPC, the iron frame on the shading glue close to the side edge of the lamp holder is pasted with wrapped wheat pull, so that part of the iron frame broken holes can be wrapped to prevent foreign matters or water vapor and the like from entering the backlight to cause defects. Due to the fact that appearance tolerance and assembly tolerance of the light bar FPC, the iron frame and the edge covering Mylar material are involved, the edge covering Mylar distance at the broken hole cannot be designed in an interference mode, at least 0.2mm gaps need to be reserved, the gaps are shown in figure 6, the edge covering PET cannot completely cover the position of the open hole, and the risk that the membrane material absorbs wrinkles due to the penetration of credible water vapor is caused.
Based on the above problem, an embodiment of the present disclosure provides a liquid crystal module backlight, a cross-sectional side view of which is shown in fig. 7, and the liquid crystal module backlight at least includes:
the LED backlight module comprises a reflector plate 1, a light guide plate 3, an LED group 10, an iron frame 13 and an LED flexible circuit board 14; wherein the content of the first and second substances,
be provided with a through-hole on the chase, the chase that the through-hole place is parallel with the light guide plate, and on the through-hole setting did not set up the position of reflector plate under the light guide plate, the trompil size of through-hole allowed the slope of LED flexible circuit board structure to incline and pass through to make the first part of LED flexible circuit board inside and LED group link in the chase, the second part of LED flexible circuit board extends to the chase outside.
The position design of through-hole on this disclosed embodiment chase is in the bottom of whole backlight, and the chase that the through-hole belongs to is that one side chase parallel with the light guide plate, and the trompil setting is different on chase perpendicular with the light guide plate with the correlation technique, keeps away from LED group at the through-hole that whole backlight bottom set up, can not bring the LED breakdown problem that the ESD leads to, promotes the life of backlight.
The backlight source of the liquid crystal module may further include: a reflector back adhesive 2, an iron frame side light bar adhesive 11, a light guide plate side light bar adhesive 12 and a double-sided adhesive 15; the LED flexible circuit board is arranged on the LED flexible circuit board, and the side edge of the iron frame is wrapped on the outer side of the LED group; the light guide plate side light bar glue is arranged on the first surface of the first part of the LED flexible circuit board and close to the LED group, and is used for adhering part of the light guide plate to the first surface of the first part of the LED flexible circuit board; the iron frame side light bar adhesive is used for adhering the second surface of the first part to the inner wall of the iron frame; the double-sided adhesive tape is used for sticking a horizontal structure of a second part extending out of the iron frame on the outer wall of the iron frame, and the horizontal structure of the second part is parallel to the first part; the second part also has the inclined bending structure.
As shown in fig. 8, in order to increase the water vapor protection capability, the liquid crystal module backlight source according to the embodiment of the disclosure may further include a single-sided adhesive 16 for completely covering the position corresponding to the through hole, and covering part of the outer wall of the bezel and part of the horizontal structure. This disclosed embodiment all attached the one-sided glue in through-hole peripheral zone and the LED FPC part that stretches out to the chase outside, and then the steam protective capacities is stronger, and product wholeness can be higher.
Although the ESD protection capability and the reliability of the moisture protection capability can be improved by forming the hole at the bottom of the bezel, the light efficiency of the liquid crystal module may be slightly affected, after all, the size of the hole at the bottom needs to allow the inclined bending structure to pass through in an inclined manner, and the inclined bending structure has an inclination angle, so that the area of the hole is much larger than that of a single bezel gap (i.e., a gap between a first part end of the LED FPC corresponding to 180 degrees bending and the reflector plate) at the bottom without the hole, and therefore, the partial inward concave design can be performed only at the periphery of the extending position of the second part, that is, the end position of the reflector plate on the bezel is shorter than that of the bezel connected with the horizontal structure, so that the bezel connected with the horizontal structure presents a half-groove structure, wherein the end position is one end close to the inclined bending structure.
The backlight source may also include other structures of the liquid crystal module backlight source in the related art, for example, as shown in fig. 9, a diffusion sheet 4, a lower prism 5, an upper prism 6, a light-shielding glue 7, a light-shielding glue PET8, a diffusion black stripe 9, etc.; the diffusion sheet is arranged on one side, far away from the LED flexible circuit board, of the light guide plate, the diffusion sheet is provided with the lower prism and the diffusion black strip, the upper prism is arranged on the lower prism, part of shading glue covers part of the iron frame, the shading glue completely covers the diffusion black strip and the upper prism, and the shading glue is provided with the shading glue PET.
Reference is made to fig. 10 for the above design, fig. 10 is a front view of fig. 8, which is further modified to show internal details for the sake of clarity, and therefore some parts are removed, and only the reference parts to be shown are shown in the figure; as can be seen from fig. 10, the light-bar (i.e. the second portion of the LED FPC) is designed to be concave and retracted only at the extended position of the bottom of the bezel, and the other positions are kept unchanged, so that the light effect is limited to the light-bar extended position only.
In order to further increase the reflection brightness, a high-brightness material can be locally plated on the periphery of the through hole of the iron frame, and a silver plating mode or an aluminum plating mode can be selected, and the method is determined according to the verification result of the actual process effect. In the implementation, the inner wall of the iron frame part of the half-groove structure is only provided with the high-brightness material so as to reflect light through the high-brightness material, and the inner wall of the iron frame in the preset range around the through hole is also provided with the high-brightness material so as to reflect light through the high-brightness material.
The above design can be referred to fig. 11, fig. 11 is a front view of fig. 8, which is further modified to show internal details for clarity, and therefore parts are removed, and only the reference numbers to be shown are shown in the figure; as can be seen from fig. 11, the highlight material 18 is plated only in the local square area around the through hole of the iron frame, and the plated layer can reflect light instead of the reflector plate to supplement the reflected light.
In order to further increase the reflection brightness, a white film is attached to the first surface of the inclined bent structure to reflect light through the white film. In particular, a white film 19 is added on the surface of the light-bar starting region (i.e. the first side of the slanted bending structure).
The above design can refer to fig. 12, and fig. 12 is a front view of the LED FPC, where the film on the LED FPC is on the light-bar to reflect light.
In summary, the light efficiency problem that may exist in the embodiments of the present disclosure can be effectively improved by combining the schemes, and a schematic side view structure of the preferred scheme is as shown in fig. 13, and it can be seen in fig. 13 that materials capable of supplementing light exist around the through hole and on the inclined bending structure, so that the reflected light in the embodiments of the present disclosure is improved, and there is no influence on the brightness of the backlight source.
In order to match the position of the opening at the bottom of the bezel, the embodiment of the present disclosure needs to design light-bar 180 ° adjustment on the side of the light guide plate, and adjust the layout of the internal layout of the FPC, thereby implementing the embodiment of the present disclosure.
The disclosed embodiment can affect the subsequent assembly process, and the processes of assembling the light bar and the light guide plate and obliquely inserting the light bar and light guide plate semi-finished product into the iron frame all need to be adjusted.
The traditional light bar and light guide plate combination semi-finished product process is manual work, and the handheld light-bar of operator is counterpointed and is attached, and this project light-bar is in the light guide plate side, and is parallel with the light guide plate, and the operator can't grab and attach, therefore, during concrete implementation, can glue from type paper optimal design to the light bar, increase two from type paper auxiliary lug 20 at the light guide plate offside, as shown in fig. 14, the handheld lug operation of operator, can reach same effect before.
The LED FPC and the iron frame are assembled through the inclined insertion process, the LED FPC needs to be pre-bent by 90 degrees in the embodiment of the disclosure, and the effect schematic diagram is shown in FIG. 15, so that manual bending can be performed, and the pre-bending process can be increased through equipment transformation, so that light-bar can smoothly pass through the hole in the bottom of the iron frame in the assembling process.
After the light-bar (the horizontal structure of the second part) extends out, the LED FPC of the part is bonded on the iron frame through double-sided adhesive tape, so that the rebound is prevented; the whole through hole is synchronously covered by the black single-sided adhesive 16 in an attaching mode, so that the interior of the backlight source is sealed, the problem of water vapor entering due to reliability is solved, and meanwhile, light leakage is prevented by shielding. The above arrangement of the embodiment of the present disclosure is simple and convenient, and reference may be made to fig. 16 (back view), where reference numeral 17 is a main FPC of the liquid crystal module.
The embodiment of the disclosure provides a novel backlight design structure, the through hole position of an iron frame is designed at the bottom, the extending position of an LED FPC is adjusted at the bottom, and the LED FPC is fixed on the iron frame through double-faced adhesive bonding after extending out of the through hole at the back of the iron frame, so that rebound is prevented; meanwhile, single-sided adhesive is attached to the through hole to cover the whole through hole, so that the through hole of the iron frame is sealed; meanwhile, according to the embodiment of the disclosure, the highlight material is plated on the part of the iron frame, the light-bar is provided with the white film, the concave design of the reflection part is optimized, the reflection light effect is improved, and the brightness is increased.
The embodiment of the present disclosure further provides a liquid crystal module, which at least includes the liquid crystal module backlight source in the above embodiments of the present disclosure, and the structure of the liquid crystal module backlight source is not repeated.
The embodiment of the disclosure also provides an electronic device, which at least comprises the liquid crystal module.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the disclosure with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, the subject matter of the present disclosure may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
While the present disclosure has been described in detail with reference to the embodiments, the present disclosure is not limited to the specific embodiments, and those skilled in the art can make various modifications and alterations based on the concept of the present disclosure, and the modifications and alterations should fall within the scope of the present disclosure as claimed.
Claims (10)
1. A liquid crystal module backlight source is characterized by at least comprising:
the LED backlight module comprises a reflector plate, a light guide plate, an LED group, an iron frame and an LED flexible circuit board; wherein the content of the first and second substances,
be provided with a through-hole on the chase, the chase that the through-hole place with the light guide plate is parallel, the through-hole sets up do not set up under the light guide plate on the position of reflector plate, the trompil size of through-hole allows the slope of LED flexible circuit board structure slope passes through, so that LED flexible circuit board's first part is in the chase inside with LED group link, LED flexible circuit board's second part extends to the chase is outside.
2. The liquid crystal module backlight of claim 1, further comprising:
the reflecting sheet back glue, the iron frame side light bar glue, the light guide plate side light bar glue and the double-sided glue; wherein the content of the first and second substances,
the light guide plate side light bar glue is arranged on the first surface of the first part of the LED flexible circuit board and close to the LED group, and is used for pasting a part of the light guide plate on the first surface of the first part of the LED flexible circuit board;
the iron frame side light bar adhesive is used for adhering the second surface of the first part to the inner wall of the iron frame;
the double-sided adhesive tape is used for adhering a horizontal structure of a second part extending to the outside of the iron frame to the outer wall of the iron frame, and the horizontal structure of the second part is parallel to the first part.
3. The liquid crystal module backlight of claim 1, further comprising:
and the single-sided adhesive is used for completely covering the position corresponding to the through hole and covering part of the outer wall of the iron frame and part of the horizontal structure.
4. The liquid crystal module backlight of claim 1, wherein the end position of the reflective sheet on the bezel is shorter than the end position of the bezel connected to the horizontal structure, so that the bezel connected to the horizontal structure has a half-groove structure, wherein the end position is located near one end of the inclined bent structure.
5. The liquid crystal module backlight of claim 4, wherein a highlight material is provided on an inner wall of the bezel portion of the half-groove structure to reflect light through the highlight material.
6. The liquid crystal module backlight source of claim 4, wherein a highlight material is disposed on the inner wall of the bezel within a predetermined range around the through hole to reflect light through the highlight material.
7. The liquid crystal module backlight source of any one of claims 1 to 6, wherein a white film is attached to the first surface of the inclined bending structure to reflect light through the white film.
8. The liquid crystal module backlight of claim 7, further comprising:
the device comprises a diffusion sheet, a lower prism, an upper prism, shading glue PET and diffusion black stripes; wherein the content of the first and second substances,
the diffusion sheet is arranged on one side, far away from the LED flexible circuit board, of the light guide plate, the diffusion sheet is provided with the lower prism and the diffusion black strips, the lower prism is provided with the upper prism, part of the shading glue covers part of the iron frame, the shading glue completely covers the diffusion black strips and the upper prism, and the shading glue is provided with the shading glue PET.
9. A liquid crystal module, comprising: a liquid crystal module backlight according to any one of claims 1 to 8.
10. An electronic device, characterized in that it comprises at least: a liquid crystal module according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123613.0A CN113835265A (en) | 2021-09-24 | 2021-09-24 | Liquid crystal module backlight source, liquid crystal module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111123613.0A CN113835265A (en) | 2021-09-24 | 2021-09-24 | Liquid crystal module backlight source, liquid crystal module and electronic equipment |
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| CN113835265A true CN113835265A (en) | 2021-12-24 |
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| KR20200028700A (en) * | 2018-09-07 | 2020-03-17 | 엘지디스플레이 주식회사 | Display Unit |
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