CN217238566U - Direct type backlight module and display - Google Patents
Direct type backlight module and display Download PDFInfo
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- CN217238566U CN217238566U CN202220650877.5U CN202220650877U CN217238566U CN 217238566 U CN217238566 U CN 217238566U CN 202220650877 U CN202220650877 U CN 202220650877U CN 217238566 U CN217238566 U CN 217238566U
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Abstract
The utility model discloses a direct type backlight module and a direct type display, wherein the direct type backlight module comprises a back plate, a reflector plate, a backlight source and a diffusion plate; the reflector plate is arranged on the inner surface of the back plate; the backlight source is arranged on the inner surface of the back plate; the backlight source comprises a first light-emitting piece, the first light-emitting piece comprises a light-emitting section, two end parts of the light-emitting section are connected with a first extension section and a second extension section, and a preset included angle is formed between the first extension section and the second extension section; the diffusion plate cover is arranged on the top of the back plate. The technical scheme of the utility model is that a first extension section and a second extension section are arranged at two ends of a first luminous piece, and a preset included angle is arranged between the first extension section and the second extension section; the first extension section and the second extension section are used for shortening the distance between the backlight source and the corner, and an included angle is formed between the first extension section and the second extension section to enlarge the light coverage range; the problem of dark corners in display can be solved, and the light uniformity of a display area is improved.
Description
Technical Field
The utility model relates to a liquid crystal display panel field, in particular to straight following formula backlight unit and display.
Background
Conventional straight following formula backlight unit, the inclined plane design is done all around to the backplate cavity, the region of placing of backlight is far less than top liquid crystal display panel display area, this kind of design is handsome in appearance and has saved the lamp strip, but the corner distance lamp strip of liquid crystal display panel effective display area is far away, lead to corner received light energy to be few partially, lead to the dark angle to appear in the display area, corner received light energy leads to luminance to be low partially and the luminance degree of consistency is low partially less partially, can't satisfy high-end design index less. The backlight source generally adopts a lamp panel, and the effective solution at present is to arrange break angles at two ends of the lamp panel to be close to corners so as to reduce the optical distance from a light-emitting piece to the corners; although this solution overcomes the problem of dark corners, it causes the light display degree of the effective display area to be uneven.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a straight following formula backlight unit aims at overcoming the problem that the vignetting appears in the demonstration, improves the regional light degree of consistency of display.
In order to achieve the above objects, the present invention provides a direct-type backlight module, including:
a back plate;
the reflecting sheet is arranged on the inner surface of the back plate;
the backlight source is arranged on the inner surface of the back plate; the backlight source comprises a first light-emitting piece, the first light-emitting piece comprises a light-emitting section, two ends of the light-emitting section are both connected with a first extending section and a second extending section, and a preset included angle is formed between the first extending section and the second extending section;
and the diffusion plate is covered at the top of the back plate.
Preferably, the first light-emitting component comprises a lamp panel and a lamp bead arranged on the lamp panel; the lamp panel comprises the light emitting section, the first extension section and the second extension section; the lamp beads are uniformly arranged on the light-emitting section, the first extending section and the second extending section.
Preferably, the backlight further comprises a second light emitting member; the second light emitting member is positioned at one side of the first light emitting member.
Preferably, the light emitting sections of the first and second light emitting members are parallel.
Preferably, the backlight source further comprises an optical lens, and the optical lens covers the lamp beads.
Preferably, the both ends of lamp plate all are provided with first incision, first incision is used for separately first extension section with the second extension section is in order to form predetermine the contained angle.
Preferably, the connection ends of the first extension segment and the second extension segment and the light emitting segment are provided with second notches, and one end of the first notch is connected with the second notch.
Preferably, the length of the second cutout is smaller than the width of the light emitting section.
Preferably, both ends of the second notch are provided with round holes.
The utility model discloses still provide a display, include as above straight following formula backlight unit.
The technical scheme of the utility model is that a first extending section and a second extending section are arranged at two ends of the first luminous part, and a preset included angle is arranged between the first extending section and the second extending section; the first extension section and the second extension section are used for shortening the distance between the backlight source and the corner, and meanwhile, a preset included angle is arranged between the first extension section and the second extension section, so that the light coverage range can be enlarged; the backlight source is used for emitting light to the diffusion plate, and the reflection sheet is helpful for homogenizing the light to a certain extent; in the prior art, the edge of the backlight source is away from the corner of the diffuser plate, which causes the light path between the backlight source and the corner of the diffuser plate to be far, so that the corner of the diffuser plate is darker than the center of the diffuser plate, thereby forming a dark corner; the distance between the backlight source and the corner of the diffusion plate is reduced by arranging the first extension section and the second extension section respectively, so that the optical path between light and the corner of the diffusion plate is shortened, and a dark corner is avoided; the integral light energy intensity is ensured, and the integral brightness uniformity is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a direct-type backlight module according to the present invention.
Fig. 2 is a schematic cross-sectional view of an embodiment of a direct-type backlight module according to the present invention.
Fig. 3 is a schematic structural diagram of the backlight source in fig. 1.
Fig. 4 is a schematic structural diagram of a backlight source according to another embodiment of the present invention.
The reference numbers indicate:
| reference numerals | Name(s) | Reference numerals | Name (R) |
| 1 | |
315 | |
| 2 | |
316 | |
| 3 | |
317 | |
| 31 | First light- |
318 | |
| 311 | |
319 | |
| 312 | |
32 | Second |
| 313 | |
4 | |
| 314 | Lamp panel |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a straight following formula backlight unit.
Referring to fig. 1 to 4, in an embodiment of the present invention, the direct type backlight module includes a back plate 1, a reflective sheet 2, a backlight source 3 and a diffusion plate 4; the reflector plate 2 is arranged on the inner surface of the back plate 1; the backlight source 3 is arranged on the inner surface of the back plate 1; the backlight source 3 comprises a first light emitting part 31, the first light emitting part 31 comprises a light emitting section 311, two ends of the light emitting section 311 are connected with a first extension section 312 and a second extension section 313, and a preset included angle is formed between the first extension section 312 and the second extension section 313; the diffusion plate 4 is covered on the top of the back plate 1.
In the above structure, a first extension 312 and a second extension 313 are arranged at two ends of the first light-emitting component 31, and a preset included angle is arranged between the first extension 312 and the second extension 313; the first extension section 312 and the second extension section 313 are used for shortening the distance between the backlight 3 and a corner, and meanwhile, a preset included angle formed between the first extension section 312 and the second extension section 313 can enlarge the light coverage range; the backlight source 3 is used for emitting light to the diffusion plate 4, and the reflection sheet 2 is helpful for uniform light to a certain extent; the edge of the conventional backlight source 3 is at a certain distance from the corner of the diffuser plate 4, which results in a long optical path between the backlight source 3 and the corner of the diffuser plate 4, so that the corner of the diffuser plate 4 is darker than the center, thereby forming a dark corner; the first extension section 312 and the second extension section 313 are respectively arranged to reduce the distance between the backlight source 3 and the corner of the diffusion plate 4, so that the optical path between light and the corner of the diffusion plate 4 is shortened, and the formation of a dark corner is avoided; the integral light energy intensity is ensured, and the integral brightness uniformity is improved.
An included angle θ is disposed between the first extension 312 and the second extension 313. In the above structure, the first extension 312, the second extension 313 and the light emitting section 311 are connected and then extend in a Y shape, and the larger the included angle between the first extension 312 and the second extension 313 is, the larger the light coverage of the first extension 312 and the second extension 313 is. The angle of the included angle depends on the brightness loss condition of the corner, and the larger the brightness loss of the corner, the larger the included angle is.
The first light-emitting component 31 includes a lamp panel 314 and a lamp panel 315 disposed on the lamp panel 314; the lamp panel 314 includes the light emitting section 311, the first extension 312, and the second extension 313; the lamp plate 315 is uniformly disposed on the light emitting section 311, the first extension section 312 and the second extension section 313.
In the above structure, the lamp panel 314 is a control circuit board; the lamp panel 314 is electrically connected with the lamp panel 315, when the lamp panel 314 is powered on, the lamp panel 315 emits light to the diffusion plate 4, part of the light is transmitted to the reflector plate 2 and then is refracted to the diffusion plate 4, and the reflector plate 2 has the function of homogenizing the light; the lamp panel 315 is an LED lamp panel 315, that is, a light emitting diode, and has the characteristics of high brightness, long service life, and uniform light emission.
The backlight 3 further comprises a second light emitting element 32, and the second light emitting element 32 and the first light emitting element 31 have the same structure; the second light emitting member 32 is positioned at one side of the first light emitting member 31.
The light emitting section 311 of the first light emitting member 31 is parallel to the light emitting section 311 of the second light emitting member 32.
In the above structure, the first light emitting element 31 and the second light emitting element 32 are disposed symmetrically with respect to the horizontal center line of the backboard 1, and the first extension 312 and the second extension 313 of the first light emitting element 31 and the second light emitting element 32 extend to the corners of the backboard 1, respectively; through setting up above-mentioned structure, can ensure that the luminous region of backlight 3 can cover whole backplate 1, avoid forming the vignette, also guaranteed holistic luminous degree of consistency simultaneously.
The first light emitting component 31 further includes an optical lens 316, and the optical lens 316 covers the lamp panel 315. The backlight 3 further includes an optical lens 316, and the optical lens 316 covers the lamp panel 315. In the above structure, the optical lens 316 is a convex lens; the optical lens 316 is made of an encapsulation adhesive, and has an effect of making light emitted from the lamp panel 315 more uniformly diffused.
In the above structure, when light passes through the curved surface of the optical lens 316, the light can be refracted and condensed, and when the distance between the optical lens 316 and the lamp panel 315 is adjusted, the angle can be changed (the angle is inversely proportional to the distance), so that the light spots are relatively uniform, and the light utilization efficiency can be improved.
Both ends of lamp plate 314 all are provided with first incision 317, first incision 317 is used for separately first extension section 312 with second extension section 313 is in order to form preset contained angle. In the above-mentioned structure, through set up first incision 317 at lamp plate 314 both ends, make the both ends of lamp plate 314 fall into first extension section 312 and second extension section 313, convenient processing avoids increasing the manufacturing material cost.
The connection ends of the first extension 312 and the second extension 313 and the light emitting section 311 are provided with a second notch 318, and one end of the first notch 317 is connected with the second notch 318. In the above-mentioned structure, through setting up second incision 318, make first extension section 312 with second extension section 313 can part apart naturally, avoids producing the dog-ear, influences first extension section 312 with circuit connection between the lamp plate 315 on the second extension section 313.
The length of the second cutout 318 is smaller than the width of the light emitting section 311. In the above structure, the length of the second notch 318 is smaller than the widths of the first extension segment 312 and the second extension segment 313, so as to avoid that the first extension segment 312 and the second extension segment 313 are completely cut off from the trunk structure, which affects the internal routing of the lamp panel 314 and further affects the circuit connection between the lamp panels 315.
Both ends of the second slit 318 are provided with round holes 319. In the above structure, the round holes 319 are disposed at two ends of the second cut 318, so as to prevent the first extension 312 and the connection portion between the second extension 313 and the backbone structure from being pulled and broken during the installation process.
According to the technical scheme of the present invention, a first extending section 312 and a second extending section 313 are disposed at two ends of the first light-emitting component 31, and a preset included angle is disposed between the first extending section 312 and the second extending section 313; the first extension section 312 and the second extension section 313 are used for shortening the distance between the backlight 3 and a corner, and meanwhile, a preset included angle formed between the first extension section 312 and the second extension section 313 can enlarge the light coverage range; the backlight source 3 is used for emitting light to the diffusion plate 4, and the reflection sheet 2 is helpful for uniform light to a certain extent; the edge of the conventional backlight source 3 is at a certain distance from the corner of the diffuser plate 4, which results in a long optical path between the backlight source 3 and the corner of the diffuser plate 4, so that the corner of the diffuser plate 4 is darker than the center, thereby forming a dark corner; the first extension 312 and the second extension 313 are respectively arranged to reduce the distance between the backlight source 3 and the corner of the diffuser plate 4, so that the optical path between the light and the corner of the diffuser plate 4 is shortened, and the formation of a dark corner is avoided; the integral light energy intensity is ensured, and the integral brightness uniformity is improved.
The utility model discloses still provide a display, this display includes straight following formula backlight unit, and this backlight unit's concrete structure refers to above-mentioned embodiment, because this display has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A direct type backlight module is characterized by comprising:
a back plate;
the reflector plate is arranged on the inner surface of the back plate;
the backlight source is arranged on the inner surface of the back plate; the backlight source comprises a first light-emitting piece, the first light-emitting piece comprises a light-emitting section, two ends of the light-emitting section are both connected with a first extending section and a second extending section, and a preset included angle is formed between the first extending section and the second extending section;
and the diffusion plate is covered at the top of the back plate.
2. The direct type backlight module of claim 1, wherein the first light emitting member comprises a lamp panel and a lamp bead disposed on the lamp panel; the lamp panel comprises the light emitting section, the first extension section and the second extension section; the lamp beads are uniformly arranged on the light-emitting section, the first extension section and the second extension section.
3. The direct type backlight module as claimed in claim 2, wherein the backlight source further comprises a second light emitting member; the second light emitting member is positioned at one side of the first light emitting member.
4. The direct type backlight module according to claim 3, wherein the light emitting segments of the first and second light emitting members are parallel.
5. The direct type backlight module according to any one of claims 2 to 4, wherein the backlight source further comprises an optical lens, and the optical lens covers the lamp beads.
6. The direct type backlight module according to any one of claims 2 to 4, wherein first notches are formed at both ends of the lamp panel, and the first notches are used for separating the first extension segments from the second extension segments to form the preset included angle.
7. The direct-type backlight module according to claim 6, wherein the connecting ends of the first and second extension segments and the light emitting segments are provided with second slits; one end of the first notch is connected with the second notch.
8. The direct type backlight module according to claim 7, wherein the length of the second slit is smaller than the width of the light emitting segments.
9. The direct type backlight module according to claim 8, wherein the second slit has round holes at both ends.
10. A display comprising the direct type backlight module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220650877.5U CN217238566U (en) | 2022-03-23 | 2022-03-23 | Direct type backlight module and display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220650877.5U CN217238566U (en) | 2022-03-23 | 2022-03-23 | Direct type backlight module and display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217238566U true CN217238566U (en) | 2022-08-19 |
Family
ID=82843628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220650877.5U Active CN217238566U (en) | 2022-03-23 | 2022-03-23 | Direct type backlight module and display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217238566U (en) |
-
2022
- 2022-03-23 CN CN202220650877.5U patent/CN217238566U/en active Active
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