CN210155491U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN210155491U CN210155491U CN201921449045.1U CN201921449045U CN210155491U CN 210155491 U CN210155491 U CN 210155491U CN 201921449045 U CN201921449045 U CN 201921449045U CN 210155491 U CN210155491 U CN 210155491U
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Abstract
The utility model relates to a show technical field, disclose a backlight unit and display device, this backlight unit includes: the light guide plate and the plurality of optical films are arranged on the light emergent side of the light guide plate; at least one of the optical films is provided with an ultraviolet fluorescent material film layer with a set pattern. The ultraviolet fluorescent material film layer with the set patterns is arranged on the optical film in the backlight module, and is excited to display the corresponding patterns under the irradiation of ultraviolet light, whether the optical film is lost or reversed can be judged according to the corresponding patterns, so that the foolproof effect is achieved, and the abnormal probability of the optical film in assembly is greatly reduced; and the light-emitting display pattern is only emitted under the irradiation of ultraviolet light, the display effect of the formed display device cannot be influenced, and the problem that the fool-proof difficulty is caused by no physical fool-proof design space in the narrow-frame backlight module in the prior art can be effectively solved.
Description
Technical Field
The utility model relates to a show technical field, in particular to backlight module and display device.
Background
At present, in the backlight module of the liquid crystal display, the backlight module includes a diffusion film, a lower diffusion film, an upper prism film, a lower prism film and other film structures, and the collocation of multiple films is easy to occur the situation of upside down or missing of the films during the assembly, and meanwhile, because of the narrow border development of the liquid crystal module, the area of the films outside the display area is smaller and smaller, the fool-proof design space of the films tends to be extremely limited, the fool-proof design difficulty of the physical structure is gradually increased, and some bad problems can also occur, for example, the conventional physical corner-lacking fool-proof design may cause light leakage at the corner-lacking position, and therefore, the fool-proof design scheme of the films in the display module suitable for the narrow border is urgently needed to be researched.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a backlight module and a display device, wherein ultraviolet fluorescent material film layers with set patterns are arranged on a plurality of optical films in the backlight module, and are excited to display corresponding patterns under the irradiation of ultraviolet light, so that whether optical film materials are lost or reversed can be judged according to the corresponding patterns, a foolproof effect is achieved, and the abnormal probability of the optical film materials during assembly is greatly reduced; and the light-emitting display pattern is only emitted under the irradiation of ultraviolet light, the display effect of the formed display device cannot be influenced, and the problem that the fool-proof difficulty is caused by no physical fool-proof design space in the narrow-frame backlight module in the prior art can be effectively solved.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a backlight module includes: the light guide plate comprises a light guide plate and a plurality of optical films arranged on the light emergent side of the light guide plate; wherein, at least one optical film in the plurality of optical films is provided with an ultraviolet fluorescent material film layer with a set pattern.
In the backlight module, a plurality of optical films are arranged, and each optical film needs to be assembled and matched, wherein at least one optical film in the plurality of optical films is provided with an ultraviolet fluorescent material film layer with a set pattern, namely, an identification pattern of the ultraviolet fluorescent material is arranged on the optical film, wherein two optical films can be provided with the ultraviolet fluorescent material film layers, or all the optical films can be provided with the ultraviolet fluorescent material film layers, and orthographic projections of the ultraviolet fluorescent material film layers on the optical surfaces of the light guide plates are not overlapped with each other, namely, the ultraviolet fluorescent material film layers on each optical film are arranged at different positions, so that when each optical film is assembled, the ultraviolet fluorescent material film layers on the optical films are excited to emit light to display corresponding patterns under the irradiation of ultraviolet light, and whether the optical films are missing or reversed can be judged according to the displayed identification pattern, can play the role of fool-proofing, and the ultraviolet fluorescent material film layers on the optical films are arranged at different positions and are not mutually shielded, the identification patterns on all the membrane materials can be seen under the irradiation of ultraviolet light, the visual fool-proofing of a plurality of optical membranes can be realized, the foolproof effect is good, the probability of abnormity of the optical film material during assembly is effectively reduced, and in the installation process, can realize the automatic identification of the ultraviolet fluorescent material film layer on each optical film, in addition, the ultraviolet fluorescent material film layer is transparent, can be excited to emit light to display patterns only under the irradiation of ultraviolet light, does not influence the display effect, therefore, the setting position of the ultraviolet fluorescent material film layer can be in the display area of the display device, the requirement on the setting position is not high, and the problem that no physical fool-proof design space exists in the backlight module with narrow frames in the prior art and the fool-proof difficulty is effectively relieved.
Therefore, the ultraviolet fluorescent material film layers with the set patterns are arranged on the plurality of optical films in the backlight module, and are excited to display the corresponding patterns under the irradiation of ultraviolet light, so that whether the optical films are lost or reversed can be judged according to the corresponding patterns, the foolproof effect is achieved, and the abnormal probability of the optical film assembly is greatly reduced; and the light-emitting display pattern is only emitted under the irradiation of ultraviolet light, the display effect of the formed display device cannot be influenced, and the problem that the fool-proof difficulty is caused by no physical fool-proof design space in the narrow-frame backlight module in the prior art can be effectively solved.
Optionally, each optical film is formed with an ultraviolet fluorescent material film layer with a set pattern, and orthographic projections of the ultraviolet fluorescent material film layers on the optical films on the light-emitting surface of the light guide plate are not overlapped with each other.
Optionally, an ultraviolet fluorescent material film layer with a set pattern is formed on the light guide plate, and orthographic projections of the ultraviolet fluorescent material film layer on the light guide plate and the ultraviolet fluorescent material film layers on the optical films on the light emitting surface of the light guide plate are not overlapped with each other.
Optionally, the patterns of the ultraviolet fluorescent material film layers are different from each other.
Optionally, the pattern shape of the ultraviolet fluorescent material film layer is a circle, a circular ring, a triangle, a square, a rectangle, a diamond, or a hexagon.
Optionally, orthographic projections of the ultraviolet fluorescent material film layers on the light emitting surface of the light guide plate are located in the same region.
Optionally, the ultraviolet fluorescent material film layer is located at a corner of the optical film.
Optionally, the plurality of optical films include a diffusion film, the diffusion film includes a first substrate layer, a diffusion particle functional layer is formed on one side of the first substrate layer, the first substrate layer deviates from one side of the diffusion particle functional layer is formed with a first back coating layer, the first back coating layer deviates from one side of the first substrate layer is formed with the ultraviolet fluorescent material film layer.
Optionally, the plurality of optical films comprise prism films, the prism films comprise second substrate layers, prism structures are formed on one sides of the second substrate layers, the second substrate layers deviate from one sides of the prism structures, second back coating layers are arranged on one sides of the second substrate layers, and the second back coating layers deviate from one sides of the second substrate layers and are formed with the ultraviolet fluorescent material film layers.
The utility model also provides a display device, include an arbitrary backlight unit that provides like above-mentioned technical scheme.
Drawings
Fig. 1 is an exploded view of a backlight module according to an embodiment of the present invention;
fig. 2 is a front view of a backlight module according to an embodiment of the present invention;
fig. 3 is a schematic view of an optical film according to an embodiment of the present invention;
fig. 4 is a schematic view of an optical film according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a diffusion membrane according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a prism film provided in an embodiment of the present invention;
icon: 1-a backlight module; 11-a light guide plate; 12-an optical film; 121-ultraviolet fluorescent material film layer; 122-a first substrate layer; 123-a diffusion particle functional layer; 124-first back coating; 125-a second substrate layer; 126-prismatic structures; 127-second back coat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a backlight module 1, including: a light guide plate 11 and a plurality of optical films 12 arranged on the light exit side of the light guide plate 11; wherein, at least one optical film 12 of the plurality of optical films 12 is formed with an ultraviolet fluorescent material film 121 having a set pattern.
The backlight module comprises a light guide plate, a plurality of optical films are arranged on the light emergent side of the light guide plate, and the optical films need to be assembled and matched, wherein at least one of the optical films is provided with an ultraviolet fluorescent material film layer with a set pattern, namely, an identification pattern of the ultraviolet fluorescent material is arranged on the optical film layer, wherein the ultraviolet fluorescent material film layers can be arranged on two optical films, or the ultraviolet fluorescent material film layers can be arranged on all the optical films, and the orthographic projections of the ultraviolet fluorescent material film layers on the light emergent surface of the light guide plate are not overlapped with each other, namely, the ultraviolet fluorescent material film layers on each optical film are arranged at different positions, so that the ultraviolet fluorescent material film layers on the optical films are excited to emit light to display corresponding patterns under the irradiation of ultraviolet light when the optical films are assembled, whether optical film materials are missing or reversed can be judged according to the displayed identification patterns, a foolproof effect can be achieved, the setting positions of ultraviolet fluorescent material film layers on the optical films are different and are not mutually shielded, the identification patterns on all the film materials can be seen under the irradiation of ultraviolet light, the visual foolproof of a plurality of optical films can be achieved, the foolproof effect is good, the probability of abnormity of optical film material assembly is effectively reduced, in addition, the automatic identification of the ultraviolet fluorescent material film layers on the optical films can be achieved in the installation process, in addition, the ultraviolet fluorescent material film layers are transparent, the patterns can be excited to emit light only under the irradiation of the ultraviolet light, the display effect is not influenced, therefore, the setting positions of the ultraviolet fluorescent material film layers can be in the display area of the display device, and the requirements on the setting positions are not high, the problem that no physical fool-proof design space exists in the backlight module with narrow frame in the prior art and the fool-proof difficulty is solved.
Therefore, the ultraviolet fluorescent material film layer with the set patterns is arranged on the optical film in the backlight module, and is excited to display the corresponding patterns under the irradiation of ultraviolet light, whether the optical film is lost or reversed can be judged according to the corresponding patterns, so that the foolproof effect is achieved, and the abnormal probability of the optical film in assembly is greatly reduced; and the light-emitting display pattern is only emitted under the irradiation of ultraviolet light, the display effect of the formed display device cannot be influenced, and the problem that the fool-proof difficulty is caused by no physical fool-proof design space in the narrow-frame backlight module in the prior art can be effectively solved.
Specifically, referring to fig. 1, each optical film 12 is formed with an ultraviolet fluorescent material film 121 having a set pattern, and orthographic projections of the ultraviolet fluorescent material film 121 on each optical film 12 on the light-emitting surface of the light guide plate 11 do not overlap each other. All be provided with the ultraviolet fluorescence material rete on every optical film of all optical films of backlight unit, promptly, all optical films in the backlight unit all rely on setting up ultraviolet fluorescence material on optical film to prevent slow-witted, prevent slow-witted effect better, more are favorable to reducing the unusual probability of optical film material equipment, effectively improve backlight unit's equipment yield.
Specifically, referring to fig. 1, the light guide plate 11 in the backlight module 1 is formed with an ultraviolet fluorescent material film 121 having a set pattern, and orthographic projections of the ultraviolet fluorescent material film 121 on the light guide plate 11 and the ultraviolet fluorescent material film 121 on each optical film 12 on the light emitting surface of the light guide plate 11 are not overlapped with each other. The ultraviolet fluorescent material film layer with the set patterns is also arranged on the light guide plate, so that the fool-proofing of the light guide plate is realized, the operation is simple and convenient, and the functional influence on the light guide plate can not be caused.
In the backlight module, referring to fig. 2, the patterns of the uv fluorescent material film layers 121 are different from each other, for example, as shown in fig. 3, the pattern of the uv fluorescent material film layer on one of the optical films is set to be rectangular, and as shown in fig. 4, the pattern of the uv fluorescent material film layer on another of the optical films is set to be circular, and besides, the uv fluorescent material film layers on other of the optical films are set to be other patterns such as circular ring, which is not listed here, wherein the patterns of the uv fluorescent material film layers 121 on the optical films 12 are set to be different from each other, and different uv fluorescent material patterns are printed on the optical films with different functions, so that the assembling condition of each optical film material can be judged more directly and obviously, and the fool-proof effect is better, and the specific film material with abnormal assembly is more convenient to find out.
Specifically, the pattern shape of the ultraviolet fluorescent material film layer is a circle, a circular ring, a triangle, a square, a rectangle, a diamond, or a hexagon, or a pattern with other shapes, which is not limited in this embodiment.
Specifically, referring to fig. 2 in conjunction with fig. 1, the orthographic projections of the uv fluorescent material film layers 121 on the light emitting surface of the light guide plate 11 are located in the same region. The positions of the ultraviolet fluorescent material film layers on the optical film materials are concentrated in opposite areas of the optical film materials, namely, an identification area (such as a dotted grid-shaped square area in fig. 2) is selected, so that the positions of the ultraviolet fluorescent material film layers on the optical film materials are the same, and the orthographic projections of the ultraviolet fluorescent material film layers on the optical film materials on the light guide plate are at different positions in the same area, namely, the orthographic projections of the ultraviolet fluorescent material film layers on the optical film materials on the light guide plate are concentrated in a certain area, so that the ultraviolet fluorescent material film layers can not be dispersed and have overlarge spacing, and when the ultraviolet light is irradiated, all the ultraviolet fluorescent material film layers needing to be detected can be identified only by irradiating the identification area, so that the identification and detection are facilitated; wherein, the patterns of the uv fluorescent material film layers on the optical film materials are different, for example, as shown in fig. 2, in the identification area (the grid area in a shape like Chinese character 'tian' in fig. 2), the pattern of the uv fluorescent material film layer on one of the optical film layers is rectangular and is positioned in the grid at the upper left corner of the grid area in a shape like Chinese character 'tian', the pattern of the uv fluorescent material film layer on the other optical film layer is circular and is positioned in the grid at the upper right corner of the grid area in a shape like Chinese character 'tian', and the pattern of the uv fluorescent material film layer on the other optical film layer is circular and is positioned in the grid at the lower left corner, as mentioned above, the setting of the uv fluorescent material vehicle film layers on the optical film layers, the patterns are different and the positions are different, and whether the assembly abnormality exists can be judged according to the pattern shape and the corresponding position, in the assembling process, fool-proofing can be performed according to specific identification patterns and positions on different optical films, and the fool-proofing mode is simple and good in effect.
Specifically, the ultraviolet fluorescent material film layer may be disposed at a corner of the optical film layer, which is convenient for printing and preparing the ultraviolet fluorescent material film layer, and it should be noted that the ultraviolet fluorescent material film layer may also be disposed at other positions of the optical film layer, which is not limited in this embodiment.
Specifically, the ultraviolet fluorescent material film layer on the light guide plate and the ultraviolet fluorescent material film layer on the optical film material are located in the same region in the orthographic projection on the light-emitting surface of the light guide plate, namely, the ultraviolet fluorescent material film layer on the light guide plate and the ultraviolet fluorescent material film layer on the optical film material correspond to each other in the same region, then, the same ultraviolet light irradiation can be adopted for identification, the ultraviolet light source is saved, and the film material of the whole backlight module is convenient for fool proofing.
Specifically, the ultraviolet fluorescent material film layer can be arranged on the light incident side surface of the optical film, so that the preparation is convenient.
Specifically, in the backlight module, the plurality of optical films include diffusion films, as shown in fig. 5, each diffusion film includes a first substrate layer 122, a diffusion particle functional layer 123 is formed on one side of the first substrate layer 122, a first back coating layer 124 is formed on one side of the first substrate layer 122 away from the diffusion particle functional layer 123, and an ultraviolet fluorescent material film layer 121 is formed on one side of the first back coating layer 124 away from the first substrate layer 122.
In addition, as shown in fig. 6, the plurality of optical films include a prism film, and the prism film includes a second substrate layer 125, a prism structure 126 is formed on one side of the second substrate layer 125, a second back coating layer 127 is disposed on one side of the second substrate layer 125 away from the prism structure 126, and an ultraviolet fluorescent material film layer 121 is formed on one side of the second back coating layer 127 away from the second substrate layer 125.
Based on the same inventive concept, the embodiment of the present invention further provides a display device, which includes any one of the backlight modules provided by the above embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A backlight module, comprising: the light guide plate comprises a light guide plate and a plurality of optical films arranged on the light emergent side of the light guide plate; wherein, at least one optical film in the plurality of optical films is provided with an ultraviolet fluorescent material film layer with a set pattern.
2. The backlight module as claimed in claim 1, wherein each of the optical films has a uv-phosphor layer with a predetermined pattern, and orthographic projections of the uv-phosphor layers on the light-emitting surfaces of the light guide plates do not overlap each other.
3. The backlight module as claimed in claim 2, wherein the light guide plate has a uv-phosphor film layer with a predetermined pattern formed thereon, and the uv-phosphor film layer on the light guide plate and the uv-phosphor film layer on each optical film do not overlap with each other in orthographic projection on the light-emitting surface of the light guide plate.
4. The backlight module as claimed in claim 2 or 3, wherein the patterns of the UV fluorescent material films are different from each other.
5. The backlight module as claimed in claim 4, wherein the pattern of the UV fluorescent material film is circular, triangular, square, rectangular, diamond, or hexagonal.
6. The backlight module as claimed in claim 2, wherein the orthographic projections of the uv-phosphor film layers on the light-emitting surface of the light guide plate are located in the same region.
7. The backlight module as claimed in claim 6, wherein the UV-fluorescent material film layer is located at a corner of the optical film.
8. The backlight module according to claim 1, wherein the plurality of optical films comprise a diffusion film, the diffusion film comprises a first substrate layer, a diffusion particle functional layer is formed on one side of the first substrate layer, a first back coating layer is formed on one side of the first substrate layer, which is far away from the diffusion particle functional layer, and the ultraviolet fluorescent material film layer is formed on one side of the first back coating layer, which is far away from the first substrate layer.
9. The backlight module as claimed in claim 1, wherein the plurality of optical films include a prism film, the prism film includes a second substrate layer, a prism structure is formed on one side of the second substrate layer, a second back coating layer is disposed on one side of the second substrate layer away from the prism structure, and the uv fluorescent material film layer is formed on one side of the second back coating layer away from the second substrate layer.
10. A display device comprising a backlight module according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921449045.1U CN210155491U (en) | 2019-08-30 | 2019-08-30 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921449045.1U CN210155491U (en) | 2019-08-30 | 2019-08-30 | Backlight module and display device |
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| CN210155491U true CN210155491U (en) | 2020-03-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859448A (en) * | 2021-03-17 | 2021-05-28 | 重庆京东方显示照明有限公司 | Adhesive tape, backlight module, display device and preparation method of backlight module |
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2019
- 2019-08-30 CN CN201921449045.1U patent/CN210155491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859448A (en) * | 2021-03-17 | 2021-05-28 | 重庆京东方显示照明有限公司 | Adhesive tape, backlight module, display device and preparation method of backlight module |
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