CN219715883U

CN219715883U - Spliced array type light guide plate for display screen

Info

Publication number: CN219715883U
Application number: CN202321224880.1U
Authority: CN
Inventors: 易乐; 袁誉春; 余斌
Original assignee: Shenzhen Gaoguang Optoelectronic Technology Co ltd
Current assignee: Shenzhen Gaoguang Optoelectronic Technology Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-09-19
Anticipated expiration: 2033-05-19

Abstract

The utility model discloses a spliced array type light guide plate for a display screen, which comprises a bottom plate, square grooves, light guide plate components and embedded LED lamp rows, wherein the square grooves are arranged on the bottom plate in an array mode, the light guide plate components are arranged on the square grooves, the LED lamp rows are embedded in the groove walls of the square grooves, four side walls of the square grooves comprise clamping edges and lapping platforms below the clamping edges, the light guide plate components comprise a light guide plate and a reflecting bottom plate, a plurality of scattering bars are embedded in the lower surface of the light guide plate at equal intervals, the LED lamp rows comprise circuit soft belts and LED lamp beads which are paved on the circuit soft belts at equal intervals, and the LED lamp beads are direct-irradiation lamps. The utility model can suck out the light guide plate component by using the sucking disc when the light guide plate component is dismounted, the dismounting is convenient, the light guide plate component has the effect of outwards scattering light, the light guide plate component can be spliced with scattered light formed by the adjacent light guide plate components to form a whole light source for supplying light to the liquid crystal display, and the circuit soft belt in each square groove is independently powered, so that the regional light control effect can be carried out on the whole light guide plate.

Description

Spliced array type light guide plate for display screen

Technical Field

The utility model relates to the technical field of light guide plates, in particular to a spliced array type light guide plate for a display screen.

Background

The light guide plate is made of an optical acrylic plate and then made of a high-tech material with an extremely high refractive index and light absorption, but in the daily use process of the light guide plate, because of the related environmental influence of the field and the lighting condition, a spliced array type light guide plate device is needed when the light guide plates with larger light guide brightness and different colors are needed to cooperate. But current concatenation array light guide plate device not only is inconvenient for carrying out array concatenation to a plurality of light guide plate bodies, but also is inconvenient for carrying out the dismouting to single light guide plate body, inconvenient staff carries out later maintenance and change to it. In addition, the brightness of the area on the light guide plate cannot be controlled independently, and once part of the light guide plate is damaged, the whole light guide plate is abnormal in light supply and needs to be removed and maintained integrally.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, an object of the present utility model is to provide a spliced array type light guide plate for a display screen, which solves the problems of troublesome disassembly of the spliced light guide plate, poor light control effect of the light guide plate area, etc.

The utility model provides a spliced array type light guide plate for a display screen, which comprises a bottom plate, square grooves, light guide plate components and embedded LED lamp rows, wherein the square grooves are arranged on the bottom plate in an array mode, the light guide plate components are arranged on the square grooves, the LED lamp rows are embedded in the groove walls of the square grooves, four side walls of the square grooves comprise clamping edges and lapping tables below the clamping edges, the bottoms of the clamping edges are provided with inwards concave strip grooves, the LED lamp rows are arranged in the strip grooves, the light guide plate components comprise a light guide plate and a reflecting bottom plate, a plurality of scattering bars are arranged at equal intervals in the lower surface of the light guide plate, the cross sections of the scattering bars are equilateral triangles, the bottom surfaces of the scattering bars are horizontally arranged, the transverse edges at the tops of the scattering bars are higher than the LED lamp rows, the LED lamp rows comprise circuit soft belts and LED lamp beads which are paved on the circuit soft belts at equal intervals, and the LED lamp beads are direct-irradiation lamps.

In some embodiments of the utility model, the refractive index ratio of the scattering bars to the light guide plate is 1.10-1.15:1.

In other embodiments of the utility model, the light guide plate is seamlessly snapped into the square groove and allows the bottom of the edge of the light guide plate 42 to ride on the ledges and the reflective bottom plate snapped into the groove between ledges.

In other embodiments of the present utility model, the width of the clamping edge is 15-20mm, and a light-transmitting plate with 8-12mm is arranged above the light guide plate.

In other embodiments of the present utility model, two independent power supply circuit wires are provided on the circuit flexible belt, and the LED lamp beads are electrically connected to both of the two power supply circuit wires.

In other embodiments of the present utility model, the circuit soft strips in each of the square grooves are provided with a number, and the circuit soft strips in each of the square grooves are independently powered.

In the utility model, each light guide plate component is independently clamped in the square groove, the light guide plate component can be sucked out by using the sucking disc during disassembly, the disassembly is convenient, the light guide plate component has the effect of outwards scattering light, the light guide plate component can be spliced with scattered light formed by the adjacent light guide plate components to form a whole light source for supplying light to the liquid crystal display screen, and the circuit soft belt in each square groove is independently powered, so that the regional light control effect can be carried out on the whole light guide plate.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a spliced array light guide plate for a display screen according to the present utility model.

Fig. 2 is a schematic cross-sectional view of a spliced array light guide plate for a display screen according to the present utility model.

Fig. 3 is an enlarged schematic view of fig. 2 at a.

Fig. 4 is a schematic structural diagram of a base plate and a square groove according to the present utility model.

Fig. 5 is a schematic structural diagram of an LED light bar according to the present utility model.

Fig. 6 is a schematic diagram of an internal circuit structure of an LED light bar according to the present utility model.

In the figure: 1. a bottom plate; 2. clamping edges; 3. setting up; 4. a light guide plate assembly; 41. a reflective bottom plate; 42. a light guide plate; 43. a scattering bar; 5. an LED lamp row; 51. a circuit soft band; 52. LED lamp beads; 53. and a power supply circuit flat cable.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1-6, a spliced array type light guide plate for a display screen comprises a bottom plate 1, square grooves distributed on the bottom plate 1 in an array mode, a light guide plate assembly 4 arranged on the square grooves, and an embedded LED lamp row 5 on the groove wall of the square grooves, wherein four side walls of the square grooves comprise clamping edges 2 and a lapping platform 3 below the clamping edges 2, concave strip grooves are formed in the bottoms of the clamping edges 2, the LED lamp row 5 is arranged in the strip grooves, the light guide plate assembly 4 comprises a light guide plate 42 and a reflecting bottom plate 41, a plurality of equidistant scattering bars 43 are arranged on the lower surface of the light guide plate 42 in an embedded mode, the cross sections of the scattering bars 43 are equilateral triangles, the bottom surfaces of the scattering bars 43 are horizontally arranged, transverse edges at the tops of the scattering bars 43 are higher than the LED lamp row 5, the LED lamp row 5 comprises a circuit soft belt 51 and LED lamp beads 52 which are paved on the circuit soft belt 51 at equal intervals, and the LED lamp beads 52 are direct-radiating lamps.

Because the traditional adoption of the whole light guide plate leads to uneven light on the light guide plate, the light control effect is poor, and the gray scale adjustment capability is poor. The spliced array light guide plates are adopted for splicing, and the light guide plate assemblies 4 in each area are clamped in the square grooves, and are sucked out by the suckers when the split array light guide plates are disassembled. The LED beads 52 emit light horizontally and directly, and light is incident on the light guide plate 42, and is reflected and refracted multiple times when the light is irradiated onto a plurality of equally spaced scattering bars 43, so that scattered light is formed, and the light is reflected again by the reflective base plate 41 (like a mirror). Ensure the uniform scattering of light of the whole light guide plate. The light is not directly emitted from the light guide plates and has an angle, so that the light energy between the adjacent light guide plates is spliced to form a whole light source. The LED lamp rows 5 are symmetrically arranged on two sides of the light guide plate only.

The refractive index ratio of the scattering bars 43 to the light guide plate 42 is 1.10-1.15:1. Weak spots are formed which can pass through a plurality of scattering bars 43. The refractive angle change is small.

The light guide plate 42 is seamlessly clamped in the square groove, the bottom of the edge of the light guide plate 42 is lapped on the lapping platform 3, and the reflecting bottom plate 41 is clamped in the groove between the lapping platforms 3. The fixing can be realized by being clamped inside, and the suction cup is used for sucking out and disassembling.

The width of the clamping edge 2 is 15-20mm, and a light-transmitting plate with the width of 8-12mm is arranged above the light guide plate 42. The LED lamp row 5 can be clamped in the bottom of the clamping edge 2, and a section of tube is required to be scattered and spliced due to gaps between the splicing of the light guide plates 42.

The circuit flexible belt 51 is provided with two independent power supply circuit flat cables 53, and the LED lamp beads 52 are in circuit connection with the two power supply circuit flat cables 53. When one power supply circuit flat cable 53 is abnormal, circuit maintenance can be performed to switch the other power supply circuit flat cable 53 to perform normal power supply.

The circuit soft belts 51 in each square groove are provided with numbers, and the circuit soft belts 51 in each square groove are independently powered. The circuit soft belts 51 in each square groove are independently controlled, so that the regional control of the light intensity is weak, and the overhaul is convenient.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a concatenation array light guide plate for display screen which characterized in that: including bottom plate (1), array distribution set up square groove on bottom plate (1), install light guide plate subassembly (4) on square groove and embedded LED lamp row (5) on the cell wall of square groove, square groove four lateral walls include lapping (3) of card limit (2) and card limit (2) below, card limit (2) bottom is equipped with indent strip groove, LED lamp row (5) are installed in the strip groove, light guide plate subassembly (4) include light guide plate (42) and reflection bottom plate (41), light guide plate (42) lower surface is embedded to have a plurality of equidistant scattering bars (43), scattering bars (43) cross section is equilateral triangle, the bottom surface level setting of scattering bars (43), scattering bars (43) top cross-beam is higher than LED lamp row (5), LED lamp row (5) include circuit soft area (51) and equidistant LED lamp pearl (52) of laying on circuit soft area (51), LED lamp (52) are direct projection formula.

2. The spliced array type light guide plate for a display screen according to claim 1, wherein: the refractive index ratio of the scattering bars (43) to the light guide plate (42) is 1.10-1.15:1.

3. The spliced array type light guide plate for a display screen according to claim 1, wherein: the light guide plate (42) is seamlessly clamped in the square groove, the bottom of the edge of the light guide plate (42) is lapped on the lapping platforms (3), and the reflecting bottom plate (41) is clamped in the groove between the lapping platforms (3).

4. The spliced array type light guide plate for a display screen according to claim 1, wherein: the width of the clamping edge (2) is 15-20mm, and a light-transmitting plate with the width of 8-12mm is arranged above the light guide plate (42).

5. The spliced array type light guide plate for a display screen according to claim 1, wherein: two independent power supply circuit flat cables (53) are arranged on the circuit soft belt (51), and the LED lamp beads (52) are in circuit connection with the two power supply circuit flat cables (53).

6. The spliced array type light guide plate for a display screen according to claim 1, wherein: the circuit soft belts (51) in each square groove are provided with numbers, and the circuit soft belts (51) in each square groove are independently powered.