CN210803923U - Reflector plate structure capable of improving luminous uniformity - Google Patents
Reflector plate structure capable of improving luminous uniformity Download PDFInfo
- Publication number
- CN210803923U CN210803923U CN201921767650.3U CN201921767650U CN210803923U CN 210803923 U CN210803923 U CN 210803923U CN 201921767650 U CN201921767650 U CN 201921767650U CN 210803923 U CN210803923 U CN 210803923U
- Authority
- CN
- China
- Prior art keywords
- arc
- hole
- plane
- sectional area
- cross sectional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a can improve reflector plate structure of luminous degree of consistency, including reflector plate and lamp strip, the reflector plate includes a plane and four inclined planes, four inclined planes all are provided with at least one arc through-hole group, arc through-hole group is including at least first arc through-hole, second arc through-hole and third arc through-hole, wherein third arc through-hole, second arc through-hole and first arc through-hole set up from the topside top-down interval in proper order on inclined plane, the cross sectional area of first arc through-hole is greater than the cross sectional area of second arc through-hole, the cross sectional area of second arc through-hole is greater than the cross sectional area of third arc through-hole. In this way, the utility model discloses can improve backlight unit's the luminous degree of consistency.
Description
Technical Field
The utility model relates to an optics technical field specifically is a can improve reflector plate structure of luminous degree of consistency.
Background
The liquid crystal display device adopting the direct type LED backlight module is developed towards the technical direction of low cavity cost. When the cavity is smaller and smaller, the cavity is limited by the light emitting angle, the number of the LED light sources needs to be increased for the backlight adopting the refraction type lens, and compared with the reflection type lens, the reflection type lens has a larger light emitting angle and is more advantageous, but the large light emitting angle of the reflection type lens can cause a circle of over-bright area, namely bright edge, at the edge of the visible area, so that the whole light emitting uniformity of the backlight module is influenced, and the picture visual effect and the taste of the liquid crystal display device are influenced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a can improve reflector plate structure of the luminous degree of consistency can solve the above-mentioned luminous inhomogeneous problem that arouses because of the bright border.
(II) technical scheme
In order to solve the technical problem, the utility model provides a following technical scheme: a reflector structure capable of improving the uniformity of light emission, comprising: the reflecting sheet comprises a plane and four inclined planes, the plane is rectangular, the four inclined planes are formed by extending four edges of the plane upwards in an inclined mode respectively, and the light bar is arranged on the plane; the four inclined planes are provided with at least one arc-shaped through hole group, the arc-shaped through hole group comprises at least a first arc-shaped through hole, a second arc-shaped through hole and a third arc-shaped through hole, the second arc-shaped through hole and the first arc-shaped through hole are arranged from the top side to the bottom side of the inclined planes at intervals in sequence, the cross sectional area of the first arc-shaped through hole is larger than that of the second arc-shaped through hole, and the cross sectional area of the second arc-shaped through hole is larger than that of the third arc-.
Preferably, the lamp strip includes a plurality of LED light sources, and the plane is provided with a plurality of light source through-holes with LED light source quantity looks adaptation, and the LED light source protrusion sets up in the light source through-hole.
Preferably, the number of lamp strips is a plurality of, and a plurality of lamp strips set up along planar long limit direction parallel.
Preferably, the arc through hole group further comprises a fourth arc through hole, the cross sectional area of the third arc through hole is larger than that of the fourth arc through hole, and the fourth arc through hole is arranged above the third arc through hole.
Preferably, the four inclined planes are provided with two arc-shaped through hole groups.
Preferably, the material of the reflective sheet is PET.
(III) advantageous effects
Compared with the prior art, the utility model provides a can improve reflector plate structure of luminous degree of consistency possesses following beneficial effect: the four inclined planes of the reflector plate are respectively provided with at least one arc-shaped through hole group, and the arc-shaped through hole groups can absorb light rays emitted to the arc-shaped through hole groups by the lamp strip; further, arc through-hole group includes at least first arc through-hole, second arc through-hole and third arc through-hole, and the arc through-hole cross sectional area who is close to the lamp strip more is big more, can more light of corresponding absorption to correspondingly solve the not regional bright limit problem in position in inclined plane of reflector plate better, and then improve backlight unit's luminous degree of consistency.
Drawings
Fig. 1 is a perspective view of an embodiment of a reflector structure for improving uniformity of light emission;
FIG. 2 is a top view of an embodiment of a reflector structure for improving uniformity of light emission;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: 1 reflector plate, 11 planes, 111 light source through holes, 12 inclined planes, 2 lamp strips, 21 LED light sources, 3 arc-shaped through hole groups, 31 first arc-shaped through holes, 32 second arc-shaped through holes and 33 third arc-shaped through holes.
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.
Referring to fig. 1-3, an embodiment of a reflector plate structure capable of improving the uniformity of light emission of the present invention includes: reflector plate 1 and lamp strip 2, reflector plate 1 include a plane 11 and four inclined planes 12, and plane 11 is the rectangle, and four inclined planes 12 are upwards extended formation by the four sides of plane 11 slant respectively, and the contained angle of four inclined planes 12 and plane 11 is greater than 0 degree and is less than 90 degrees, and wherein lamp strip 2 sets up on plane 11. Specifically, the material of the reflection sheet 1 is a resin material such as PET. In this embodiment, the light bar 2 includes a plurality of LED light sources 21, the plane 11 of the reflector plate 1 is provided with a plurality of light source through holes 111 adapted to the number of the LED light sources 21, and the LED light sources 21 are convexly disposed in the light source through holes 111. In addition, the number of the light bars 2 can be multiple, and the light bars 2 are arranged in parallel along the long side direction of the plane 11; it can be understood that the total number of the light source through holes 111 of the plane 11 is adapted to the number of the LED light sources 21 of the plurality of light bars 2.
The utility model considers that the light quantity emitted by the lamp strip 2 at the position close to the inclined plane 12 of the plane 11 is more than that emitted by the position far away from the inclined plane 12 of the plane 11, namely the brightness degree generated at the position close to the inclined plane 12 of the plane 11 is more than that generated at the position far away from the inclined plane 12 of the plane 11; therefore to this problem, the utility model discloses a four inclined planes 12 of reflector plate 1 all are provided with at least one arc through-hole group 3, arc through-hole group 3 is including at least first arc through-hole 31, second arc through-hole 32 and third arc through-hole 33, wherein third arc through-hole 33, second arc through-hole 32 and first arc through-hole 31 set up from the topside top-down of inclined plane 12 interval in proper order, first arc through-hole 31 is close to the plane 11 setting of reflector plate 1, the plane 11 setting of reflector plate 1 is kept away from to third arc through-hole 33, second arc through-hole sets up 32 between first arc through-hole 31 and third arc through-hole 33.
Meanwhile, the cross-sectional area of the first arc through hole 31 is larger than that of the second arc through hole 32, and the cross-sectional area of the second arc through hole 32 is larger than that of the third arc through hole 33. That is, the first arc-shaped through hole 31 can absorb a larger amount of light than the second arc-shaped through hole 32, and the second arc-shaped through hole 32 can absorb a larger amount of light than the third arc-shaped through hole 33. Preferably, the aperture size of each arc-shaped through hole of the arc-shaped through hole group 3 is in millimeter, for example, the aperture size of the first arc-shaped through hole 31 is 6mm, the aperture size of the second arc-shaped through hole 32 is 5.5mm, and the aperture size of the third arc-shaped through hole 33 is 5mm, which is not limited herein.
In other embodiments, the arc-shaped through hole group 3 may further include a fourth arc-shaped through hole, the cross-sectional area of the third arc-shaped through hole 33 is larger than that of the fourth arc-shaped through hole, and the fourth arc-shaped through hole is disposed above the third arc-shaped through hole 33, that is, the fourth arc-shaped through hole is disposed near the top edge of the inclined plane 12. The four inclined surfaces 12 may each be provided with two arc-shaped through hole groups 3. It can be understood that more arc-shaped through holes such as the fifth arc-shaped through hole can be arranged according to the specific brightness problem generated by the inclined plane 12; in addition, the number of the arc-shaped through holes 3 of each inclined surface 12 can also be three, etc., and is not limited herein.
The utility model discloses a reflector plate structure can be applied to in the backlight unit structure of following structure: the backlight module structure further comprises a diffusion plate, a prism sheet and a diffusion sheet, wherein the diffusion plate is arranged on an opening surrounded by the four inclined planes 12 of the reflection sheet 1, namely the diffusion plate is positioned above the light bar 2, the prism sheet and the diffusion sheet are sequentially stacked from bottom to top from the upper surface of the diffusion plate, namely the diffusion sheet is positioned on the uppermost layer. The diffusion plate plays a role in diffusing and atomizing light; the prism sheet plays a role in brightening light; the diffusion sheet plays a role in uniformly diffusing light. Of course, the reflector structure of the present invention can also be applied to the backlight module structure of other structures, and there is no limitation.
It can be understood that the utility model provides a can improve reflector plate structure of luminous degree of consistency possesses following beneficial effect: by arranging at least one arc-shaped through hole group 3 on each of the four inclined surfaces 12 of the reflector plate 1, the arc-shaped through hole group 3 can absorb light rays emitted to the arc-shaped through hole group 3 by the lamp strip 2; further, arc through hole group 3 includes at least first arc through hole 31, second arc through hole 32 and third arc through hole 33, and the arc through hole cross sectional area who is close to lamp strip 2 more big more, can correspondingly absorb more light to correspondingly solve the bright edge problem in the 12 different position areas on inclined plane of reflector plate 1 better, and then improve backlight unit's luminous degree of consistency.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A reflector structure capable of improving the uniformity of light emission, comprising: the reflecting sheet comprises a plane and four inclined planes, the plane is rectangular, the four inclined planes are formed by obliquely and upwardly extending four edges of the plane respectively, and the light bar is arranged on the plane;
four the inclined plane all is provided with at least one arc through-hole group, arc through-hole group is including at least first arc through-hole, second arc through-hole and third arc through-hole, wherein the third arc through-hole second arc through-hole and first arc through-hole certainly the topside top-down of inclined plane separates the setting in proper order, the cross sectional area of first arc through-hole is greater than the cross sectional area of second arc through-hole, the cross sectional area of second arc through-hole is greater than the cross sectional area of third arc through-hole.
2. The reflector structure of claim 1 wherein: the lamp strip is including a plurality of LED light sources, the plane be provided with a plurality of light source through-holes of LED light source quantity looks adaptation, the LED light source protrusion set up in the light source through-hole.
3. The reflector structure of claim 2 wherein: the quantity of lamp strip is a plurality of, and is a plurality of the lamp strip is followed planar long limit direction parallel arrangement.
4. The reflector structure of claim 1 wherein: the arc through hole group further comprises a fourth arc through hole, the cross sectional area of the third arc through hole is larger than that of the fourth arc through hole, and the fourth arc through hole is arranged above the third arc through hole.
5. The reflector structure of claim 1 wherein: and four inclined planes are provided with two arc through hole groups.
6. The reflector structure of claim 1 wherein: the reflector plate is made of PET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921767650.3U CN210803923U (en) | 2019-10-21 | 2019-10-21 | Reflector plate structure capable of improving luminous uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921767650.3U CN210803923U (en) | 2019-10-21 | 2019-10-21 | Reflector plate structure capable of improving luminous uniformity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210803923U true CN210803923U (en) | 2020-06-19 |
Family
ID=71230196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921767650.3U Active CN210803923U (en) | 2019-10-21 | 2019-10-21 | Reflector plate structure capable of improving luminous uniformity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210803923U (en) |
-
2019
- 2019-10-21 CN CN201921767650.3U patent/CN210803923U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102042539B (en) | Backlight assembly and display device having the same | |
| GB2568804A (en) | Backlight unit and liquid crystal display device including the same | |
| KR102058054B1 (en) | Back light unit and display device using there of | |
| KR102236711B1 (en) | Optical element and backlight unit including the same | |
| CN103703578A (en) | Light emitting device, illuminating device, and display device | |
| KR102266737B1 (en) | lens,light emitting apparatus including the lens, and backlight unit including the apparatus | |
| CN107991810B (en) | Backlight and liquid crystal display | |
| KR20130093929A (en) | Backlight unit and illumination system using the same | |
| KR20110007453A (en) | Backlight assembly and display apparatus having the same | |
| CN114740652B (en) | Backlight module, display panel and display device | |
| US20090323308A1 (en) | Optical plate and backlight module using the same | |
| KR20090033961A (en) | Back light assembly and liquid crystal display apparatus having the same | |
| CN210803924U (en) | Reflector plate structure for solving bright edge phenomenon | |
| CN210803923U (en) | Reflector plate structure capable of improving luminous uniformity | |
| KR102591775B1 (en) | Backlight unit and liquid crystal display having the same | |
| KR102137968B1 (en) | Light guide panel, backlight unit, display devece and method for manufacturing light guide panel | |
| US20100008062A1 (en) | Optical plate and backlight module using the same | |
| KR100404426B1 (en) | Back light of Liquid Crystal Display | |
| KR101327852B1 (en) | Backlight unit | |
| KR100939191B1 (en) | Optical panel with reflective sheet having distributed minute holes for backlight | |
| KR20120039405A (en) | Backlight unit and liquid crystal display device having the same | |
| KR101704024B1 (en) | Backlight Unit and Display Apparatus using thereof | |
| KR20150065437A (en) | Reflection plate, back light unit and liquid crystal display comprising the same | |
| CN218332228U (en) | Diffusion film, backlight module and display device | |
| KR102056667B1 (en) | Backlight unit and liquid crystal display device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |