TWI401633B - Display board - Google Patents

Description

Display board

The invention relates to a display kanban, in particular to a display kanban with high light utilization efficiency.

Compared with the conventional light source, the light-emitting diode has the advantages of no mercury, small volume, and good optical characteristics. As the luminous efficiency of light-emitting diodes continues to increase, more and more light-emitting diodes are used as light sources, for example, conventional cold cathode lamps using light-emitting diodes instead of liquid crystal display backlights, and light-emitting diodes. As a light source, it is combined with a light guide plate to constitute a display kanban or the like.

A display kanban using a light-emitting diode as a light source generally includes a backlight using a light-emitting diode, and a display panel having an advertising pattern or slogan. The display panel is usually a light-transmitting plate (such as an acrylic plate). When the light from the backlight passes through the display panel, the characters or patterns formed on the display panel will affect the light passing rate, thereby forming the display panel. The light having the area of the text or the pattern is different from the light of the area on the display panel where no characters or patterns are formed, so that the characters or patterns on the light-transmissive board are presented, thereby achieving the purpose of display.

However, during the process of the light from the backlight entering the display panel and then exiting from the display panel, part of the light is totally reflected by the light-emitting surface of the display panel or absorbed by the display panel, thereby having the disadvantage of low light utilization efficiency.

In view of this, it is necessary to provide a display kanban with high light utilization efficiency.

A display kanban with higher light utilization efficiency will be described below with specific embodiments.

A display kanban includes a fixing frame, a light emitting diode light source, a display panel, and a reflective sheet, the display panel is fixed on the fixing frame, and the display panel has a light incident surface, and the input panel a light-emitting surface disposed opposite to the light surface and at least one through hole penetrating the display panel and contacting the light-incident surface and the light-emitting surface, the opening formed on the light-emitting surface of the at least one through-hole constitutes a predetermined display pattern; The polar body light source is fixed on the fixing frame and located on a side of the light incident surface of the display panel for generating light; the reflective sheet is fixed on the fixing frame and disposed opposite to the light incident surface of the display panel to enable the light emitting diode The light source is located between the display panel and the reflective sheet. The reflective sheet has a reflective surface adjacent to the light emitting diode light source, and the reflective surface is configured to reflect the light incident thereon to the light incident surface of the display panel.

Compared with the prior art, the display panel of the display panel provided by the present invention forms a predetermined display pattern by using a through hole disposed on the display panel, and reflects the light emitted by the light emitting diode light source onto the display panel by using the reflective plate. The light incident on the through hole directly passes through the through hole without being reflected or absorbed by the display panel, thereby improving the light utilization efficiency of the display kanban, thereby achieving a better display effect.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , a display kanban 10 according to a first embodiment of the present invention includes a mounting bracket 11 , a light emitting diode light source 12 , a display panel 13 , and a reflective sheet 14 .

The fixing frame 11 is used for carrying and fixing the LED light source 12, the display panel 13 and the reflection sheet 14. The material of the fixing frame 11 can be metal, plastic or polymethyl methacrylate. In this embodiment, the material of the fixing frame 11 is metal.

The light emitting diode source 12 is fixed to the holder 11 for providing illumination. In this embodiment, a heat conductive material 120 is disposed between the light emitting diode light source 12 and the fixing frame 11 , and the heat conductive material 120 is used to conduct heat generated by the light emitting diode light source 12 to the fixing frame 11 , thereby fixing the frame 11 . It can assist the heat dissipation of the illuminating tube source 12. The heat conductive material 120 can be a thermal conductive paste, a thermal conductive adhesive or a thermal conductive patch.

The display panel 13 is fixed to the fixing frame 11 and is located on one side of the light emitting diode light source 12. The display panel 13 includes a light incident surface 130 and a light exit surface 132. The light incident surface 130 is disposed opposite to the light emitting surface 132 , and the light incident surface 130 is disposed adjacent to the light emitting diode light source 12 . Referring to FIG. 2 , the display panel 13 is provided with at least one through hole 134 . The at least one through hole 134 extends through the display panel 13 and is respectively connected to the light incident surface 130 and the light emitting surface 132 . The opening formed in the at least one through hole 134 on the light emitting surface 132 constitutes a predetermined display pattern (such as "FITI").

The reflection sheet 14 is fixed to the fixing frame 11 and disposed opposite to the light incident surface 130 of the display panel 13. The material of the reflection sheet 14 is metal, plastic or polymethyl methacrylate.

The reflective sheet 14 has a reflective surface 140 adjacent to the light-emitting diode light source 12, and the reflective sheet 14 has a white or metallic color, so that the reflective surface 140 reflects the light incident thereon to the display panel 13. Glossy 130. Please one Referring to FIG. 3, preferably, the reflecting surface 140 of the reflecting sheet 14 is provided with a circular dot 142 to change the outgoing direction of the reflected light, so that the reflected light from the reflecting surface 140 is more divergent and uniform. More preferably, the size of the circular dots 142 is sequentially increased from both sides to the middle of the reflecting surface 140. Of course, the shape of the dot is not limited to a circle, and may be a square, a triangle, or the like.

In addition, referring to Figures 4 and 5, the dots on the reflecting surface 140 can also be changed to other structural designs having a light diverging effect, such as a V-shaped groove or a tapered protrusion.

The display kanban 10 provided by the present invention forms a predetermined display pattern by using the through holes 134 provided in the display panel 13, and reflects the light emitted by the illuminating diode light source 12 onto the display panel 13 by the reflecting plate 14, and is incident on the display panel. The light of the hole directly passes through the through hole without being reflected or absorbed by the display panel 13, thereby improving the light utilization efficiency of the display kanban 10, thereby achieving a better display effect.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧ display board

11‧‧‧ Fixing frame

12‧‧‧Lighting diode source

13‧‧‧ display board

14‧‧‧reflector

120‧‧‧thermal materials

130‧‧‧Into the glossy surface

132‧‧‧Glossy

134‧‧‧through hole

140‧‧‧reflecting surface

142‧‧‧round outlets

FIG. 1 is a schematic structural diagram of a display kanban according to an embodiment of the present invention.

FIG. 2 is a schematic structural view of the display panel of the display kanban shown in FIG. 1.

FIG. 3 is a schematic structural view of the reflector of the display kanban shown in FIG. 1.

4 is a structural diagram of a reflector having a V-shaped groove provided by an embodiment of the present invention; intention.

FIG. 5 is a schematic structural view of a reflector having a tapered protrusion according to an embodiment of the present invention.

10‧‧‧ display board

11‧‧‧ Fixing frame

12‧‧‧Lighting diode source

13‧‧‧ display board

14‧‧‧reflector

120‧‧‧thermal materials

130‧‧‧Into the glossy surface

132‧‧‧Glossy

140‧‧‧reflecting surface

142‧‧‧round outlets

Claims (10)

A display kanban comprising a fixing frame, a light emitting diode light source, a display panel, and a reflecting sheet, wherein the display panel is fixed on the fixing frame, and the display panel has a light incident surface, a light-emitting surface disposed opposite to the light-incident surface and at least one through hole penetrating the display panel and contacting the light-incident surface and the light-emitting surface, the opening formed on the light-emitting surface of the at least one through-hole constitutes a predetermined display pattern The light emitting diode light source is fixed on the fixing frame and located on a side of the light incident surface of the display panel for generating light; the reflective sheet is fixed on the fixing frame and disposed opposite to the light incident surface of the display panel, so that the light emitting diode The light emitting diode light source is located between the display panel and the reflective sheet, the reflective sheet has a reflective surface adjacent to the light emitting diode light source, and the reflective surface is configured to reflect the light incident thereon to the light incident surface of the display panel . The display kanban according to claim 1, wherein the fixing frame is made of metal, plastic or polymethyl methacrylate. The display kanban according to claim 2, wherein the fixing frame is made of metal and a heat conductive material is disposed between the light emitting diode light source and the fixing frame. The display kanban according to claim 3, wherein the heat conductive material is a thermal conductive paste, a thermal conductive adhesive or a thermal conductive patch. The display kanban according to claim 1, wherein the reflective sheet is made of metal, plastic or polymethyl methacrylate. The display kanban according to claim 1, wherein the reflective sheet has a color of white or metallic. The display kanban according to claim 1, wherein the reflective sheet A V-shaped groove is disposed on a reflecting surface of the adjacent light-emitting diode light source. The display kanban according to claim 1, wherein the reflective sheet is provided with a tapered protrusion on a reflecting surface adjacent to the light emitting diode light source. The display kanban according to claim 1, wherein a square or circular dot is disposed on a reflective surface of the reflective sheet adjacent to the light emitting diode. The display kanban according to claim 9, wherein the size of the dot is increased from the two sides of the reflecting surface to the middle.