CN210720801U - Side light-entering type light guide plate and backlight module - Google Patents
Side light-entering type light guide plate and backlight module Download PDFInfo
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- CN210720801U CN210720801U CN201922179599.0U CN201922179599U CN210720801U CN 210720801 U CN210720801 U CN 210720801U CN 201922179599 U CN201922179599 U CN 201922179599U CN 210720801 U CN210720801 U CN 210720801U
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Abstract
The utility model provides a light formula light guide plate and backlight unit are gone into to side belongs to the display device field. The side light-entering light guide plate comprises: go into plain noodles (1), bottom surface (2) and go out plain noodles (3), wherein: the LED illuminating lamp is characterized in that the light incident surface (1) is connected with the bottom surface (2) and the light emergent surface (3), the bottom surface (2) is located below the light emergent surface (3), the light incident surface (1) is used for attaching an LED illuminating source, a plurality of mutually connected grooves (4) are arranged on the bottom surface (2), the vertical section of each groove (4) at least comprises an arc shape, the arc-shaped structure interval P is 100-400 um, the depth H is 10-30 um, and the radius R is 100-300 um; the light emitting surface (3) is provided with a plurality of corrugated groove microstructures which are mutually connected. The utility model discloses when can improving the lamp shadow phenomenon, avoid producing alternately light and spray the phenomenon.
Description
Technical Field
The utility model relates to a display device technical field, in particular to light formula light guide plate and backlight unit are gone into to side.
Background
The light guide plate is a key component of the backlight module because the light guide plate can convert a linear light source into a surface light source, the backlight module is a provider of a Liquid Crystal Display (LCD) light source, the LCD does not emit light, and the appearance of the backlight module light source determines the visual perception effect of the display. If the light emitted from the LED light source cannot be uniformly refracted in the light incident side direction of the light guide plate, a lamp shadow phenomenon may be formed on the light incident side of the light guide plate. In order to reduce the light shadow phenomenon, it is common practice in the industry to form V-shaped grooves (V-cuts) on the light incident side of the light guide plate to improve the light shadow.
In addition, in order to solve the problems of poor uniformity and low brightness of the conventional light guide plate, a corrugated groove microstructure (a Lenti microstructure) is provided on the light exit side of the light guide plate. However, the light guide plate having the micro-structure with wave-shaped grooves refracts more light than the flat light guide plate. Therefore, if the light guide plate with the wave-shaped groove microstructure is added with the common V-shaped groove on the light incident side, the cross light injection (cross light interference) phenomenon can occur.
In summary, how to avoid the cross light injection phenomenon while improving the lamp shadow phenomenon has received much attention from society.
Disclosure of Invention
The utility model aims at providing a can avoid producing the side income light formula light guide plate and backlight unit that alternately light sprayed the phenomenon when can improving the lamp shadow phenomenon.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a side income light formula light guide plate, its includes income plain noodles, bottom surface and play plain noodles, wherein: the light incident surface is connected with the bottom surface and the light emergent surface, the bottom surface is positioned below the light emergent surface, the light incident surface is used for attaching the LED luminous source, a plurality of mutually connected grooves are arranged on the bottom surface, the vertical cross section of each groove at least comprises an arc, the structural distance P of the arc is 100-400 um, the depth H is 10-30 um, and the radius R is 100-300 um; and the light emergent surface is provided with a plurality of corrugated groove microstructures which are mutually connected.
Optionally, the vertical cross section of recess still includes the platform, and the consecutive arc is connected to the platform, and platform interval A between the adjacent recess is 0um ~ 100 um.
Optionally, the arc opens upwardly.
Optionally, the arc opens downwardly.
A backlight module comprises the side light-in type light guide plate.
Above-mentioned all optional technical scheme all can make up wantonly, the utility model discloses do not carry out the detailed description to the structure after the one-by-one combination.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
through being provided with a plurality of interconnect's recess on the bottom surface to the vertical cross-section that sets up the recess includes the arc at least, and curved structure interval P is 100 ~ 400um, and degree of depth H is 10 ~ 30um, and radius R is 100 ~ 300um, and is provided with a plurality of interconnect's wave form groove micro-structure on going out the plain noodles, makes the utility model discloses not only can avoid the light guide plate cross light to spray bad phenomenon to appear, can improve the lamp shadow phenomenon moreover.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of a side-entry light guide plate according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another side-entry light guide plate according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of another side-entry light guide plate according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of another side-entry light guide plate according to an embodiment of the present invention.
FIG. 5 is a schematic diagram showing the display effect of different grooves formed on the bottom surface of the light guide plate.
Fig. 6 is a schematic view showing the display effect of the light guide plate after different grooves are formed on the bottom surface and the wave-shaped groove microstructures are arranged on the light emitting surface.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a side light-entering light guide plate, which includes a light-entering surface 1, a bottom surface 2 and a light-exiting surface 3, wherein: the light incidence surface 1 is connected with a bottom surface 2 and a light emergence surface 3, the bottom surface 2 is positioned below the light emergence surface 3, the light incidence surface 1 is used for attaching an LED light emitting source, a plurality of grooves 4 which are mutually connected are arranged on the bottom surface 2, the vertical cross section of each groove 4 at least comprises an arc, the structural distance P of each arc is 100-400 um, the depth H is 10-30 um, and the radius R is 100-300 um; and the light emitting surface 3 is provided with a plurality of corrugated groove microstructures which are mutually connected.
Optionally, as shown in fig. 3 and 4, the vertical section of each groove 4 further includes a platform, the platforms are connected to form an arc, and a platform distance a between adjacent grooves 4 is 0um to 100 um.
Alternatively, as shown in fig. 2 and 3, the arc is open upward.
Alternatively, as shown in fig. 1 and 4, the arc is open downward.
In order to illustrate the effect of the side-entry light guide plate provided by the present invention, with LED pitch equal to 10mm, a/P value equal to 0.5, light guide plate thickness T equal to 2mm as an example: utilize Lightools software to establish the model and simulate, to not setting up the V-arrangement groove on the bottom surface 2, set up ordinary V-arrangement groove and setting the utility model provides a recess 4 simulates, and the analysis is looked the effect as shown in a picture, b picture and c picture in following figure 5. As can be seen from fig. 5, by providing the groove 4 of the present invention, the cross light injection phenomenon does not occur.
Further, radius R that sets up recess 4 is 150um, degree of depth H15 um, structure interval P160 um to the contrast does not set up the V-arrangement groove on the bottom surface 2, sets up the utility model provides a recess 4 and setting the utility model provides a recess 4 and the wave form groove micro-structure matched with luminous effect on play plain noodles 3, the display effect through the simulation of lighttools software is shown as a picture, b picture and c picture in fig. 6 respectively. Can be obtained from fig. 6, the utility model discloses not only can avoid the light guide plate to appear alternately the light and spray bad phenomenon, can improve the lamp shadow phenomenon moreover.
The embodiment of the utility model provides a backlight module is still provided, a serial communication port, backlight module includes that any kind of aforesaid inclines into light formula light guide plate. Through setting up backlight unit and including above-mentioned side income light formula light guide plate for this backlight unit can avoid producing alternately light injection phenomenon when can improving the lamp shadow phenomenon, thereby can improve backlight unit's luminous quality.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (5)
1. The utility model provides a side formula light guide plate that entries, its characterized in that includes income plain noodles (1), bottom surface (2) and play plain noodles (3), wherein:
the LED illuminating lamp is characterized in that the light incident surface (1) is connected with the bottom surface (2) and the light emergent surface (3), the bottom surface (2) is located below the light emergent surface (3), the light incident surface (1) is used for attaching an LED illuminating source, a plurality of mutually connected grooves (4) are arranged on the bottom surface (2), the vertical section of each groove (4) at least comprises an arc shape, the arc-shaped structure interval P is 100-400 um, the depth H is 10-30 um, and the radius R is 100-300 um; the light emitting surface (3) is provided with a plurality of corrugated groove microstructures which are mutually connected.
2. The side-entry light guide plate according to claim 1, wherein the vertical cross section of the grooves (4) further comprises a platform, the platform is connected with the connected arcs, and the platform distance A between the adjacent grooves (4) is 0-100 um.
3. The side-entry light guide plate according to claim 1 or 2, wherein the arc is open upward.
4. The side-entry light guide plate according to claim 1 or 2, wherein the arc is open downward.
5. A backlight module, comprising the side-entry light guide plate of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922179599.0U CN210720801U (en) | 2019-12-09 | 2019-12-09 | Side light-entering type light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922179599.0U CN210720801U (en) | 2019-12-09 | 2019-12-09 | Side light-entering type light guide plate and backlight module |
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| CN210720801U true CN210720801U (en) | 2020-06-09 |
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| CN201922179599.0U Active CN210720801U (en) | 2019-12-09 | 2019-12-09 | Side light-entering type light guide plate and backlight module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859457A (en) * | 2022-05-13 | 2022-08-05 | 深圳创维－Rgb电子有限公司 | Side-in light guide structure, backlight module and display device |
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2019
- 2019-12-09 CN CN201922179599.0U patent/CN210720801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859457A (en) * | 2022-05-13 | 2022-08-05 | 深圳创维－Rgb电子有限公司 | Side-in light guide structure, backlight module and display device |
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