CN105698481A - Display device and refrigerator drawer - Google Patents

Abstract

A display device and a refrigerator drawer. The refrigerator drawer includes a box body, a cover body covering the box body, and a display device horizontally fixed on the cover body. The cover body has an inner surface facing the inside of the box body and an outer surface opposite to the inner surface. The display device has a PCB board and LED lights arranged on the PCB board. The PCB board has a back side facing the outer surface and a front side opposite to the back side, the LED lamp is arranged on the back side of the PCB board, and the display device is also provided with a The light is guided to the light guide element on the front side of the PCB board. With such arrangement, the overall thickness of the display device is reduced, making the display clearer and more uniform.

Description

Display unit and refrigerator drawer

technical field

The invention relates to a display device, in particular to a display device and a refrigerator drawer assembled in a refrigerator.

Background technique

Refrigerators are necessary household appliances in people's daily life, and manufacturers on the market are doing their best to improve their functions and appearance to better meet the needs of consumers. Therefore, various smart refrigerators have emerged at the historic moment, accompanied by simpler and more convenient operation of the refrigerator. Most of the outer casings or internal drawers of existing refrigerators can be operated through display screens to control the functions of the refrigerator. Therefore, the quality of the display screen is related to the performance of the refrigerator.

At present, the existing display screens are all sequentially assembled from a display board, a display board bracket, a touch medium (spring, foam, touch film), etc., and this kind of display screen is provided with LED lights. Generally speaking, the display screens arranged on the refrigerator drawers are placed horizontally, and the LED lights are arranged on the upper surface of the display board to irradiate light to the outside. However, the consequence of such an arrangement may be: The body is affected by the low-temperature cold air flowing inside the air-conditioning duct, and condensation will form above the display panel with the LED lamp installed. For a long time, it will easily form water storage on the upper surface of the display panel, and the moisture will soak into the display panel. The interior of the display panel, causing its internal electrical components to short out, causing the LED light to malfunction.

Therefore, it is necessary to design an improved display device and refrigerator drawer to solve the above problems.

Contents of the invention

The object of the present invention is to provide a display device and a refrigerator drawer with thinner display panels and clearer displays.

In order to achieve the above object, the present invention adopts the following technical solution: a display device, including a panel, a PCB board and a display film sticking on the panel, the panel has an upper operating surface and a lower operating surface facing the The bottom surface of the PCB board, the display film is glued on the bottom surface, the PCB board has a front facing the panel, a back opposite to the front and an LED light arranged on the back, the The display device is also provided with a light guide element for guiding the light of the LED lamp to the front.

As a further improved technical solution of the present invention, the PCB board is provided with a through hole penetrating up and down, and the light guide element has a see-through portion exposed above the front surface of the PCB board through the through hole.

As a further improved technical solution of the present invention, the display device further includes a light-shielding plate that adheres the display film sticker and the PCB board up and down, and the light-shielding plate is provided with perforations corresponding to the through holes to accommodate Describe the perspective department.

As a further improved technical solution of the present invention, the display film sticker is a printed display pattern or text.

As a further improved technical solution of the present invention, the panel is made of see-through material through injection molding or transfer printing in the film.

As a further improved technical solution of the present invention, the display film is pasted on the top of the see-through part to receive the light of the LED light.

As a further improved technical solution of the present invention, the light guide element is provided with the see-through part fixed in the through hole and the through hole, the first part shielding under the LED lamp, and the arc transition connecting the The first part and the second part of the see-through part, the light of the LED lamp is refracted into the see-through part through the second part.

The present invention also provides a technical solution: a refrigerator drawer, including a box body, a cover covering the box body, and a display device horizontally fixed on the cover body. The inner surface of the inner side and the outer surface opposite to the inner surface, the display device has a PCB board and an LED light arranged on the PCB board, the PCB board has a back side facing the outer surface and is connected to the On the front side opposite to the back side, the LED lamp is arranged on the back side of the PCB board, and the display device is also provided with a light guide for guiding the light of the LED lamp to the front side of the PCB board element.

As a further improved technical solution of the present invention, the PCB board is provided with a through hole penetrating up and down, and the light guide element has a see-through portion exposed above the front surface of the PCB board through the through hole.

As a further improved technical solution of the present invention, the display device further includes a light baffle attached to the front surface of the PCB, and the light baffle is provided with a perforation corresponding to the through hole to accommodate the see-through portion .

Compared with the prior art, the present invention arranges the LED lamp on the back of the PCB board facing the cavity side of the box body, which reduces the thickness of the PCB board, thereby reducing the thickness of the entire display device, so that the display device is displayed more clearly.

Description of drawings

FIG. 1 is a schematic side view of a display device of the present invention.

Fig. 2 is a top view of the refrigerator drawer of the present invention.

detailed description

Please refer to Fig. 1 and Fig. 2, the present invention discloses a refrigerator drawer 200, the refrigerator drawer 200 includes a box body 7 and a cover body 8 covering the box body 7 to seal the box body 7 . The box body 7 is provided with a cavity (not shown).

The cover body 8 is provided with an inner surface (not labeled) facing the cavity, an outer surface 81 opposite to the inner surface, and one end of the cover body 8 is recessed from the outer surface 81 into the cavity The mounting groove 82 is formed. The installation groove 82 has a bottom wall (not shown), and the refrigerator drawer 200 also has a display device 100 horizontally installed in the installation groove 82 .

The display device 100 is formed by sequentially bonding a panel 1 , a display film 2 , a light shield 3 , and a PCB 4 from top to bottom.

In the present invention, the panel 1 is provided with an operation surface 11 located above the top, and a bottom surface 12 opposite to the operation surface 11 located below the panel and attached to the display film sticker 2 . The material of the panel 1 can be see-through material such as glass or acrylic, and can be made by methods such as in-film injection molding or in-film transfer printing.

As shown in FIG. 2 , the display film sticker 2 is a printing layer with printed patterns or characters. In this embodiment, the display film sticker 2 is provided with a touch area 22 and a feedback area 21 located on the periphery of the touch area 22 .

The light blocking plate 3 is arranged under the display film sticker 2 and is in close contact with the display film sticker 2 . The light blocking plate 3 is provided with a through hole 31 penetrating up and down.

The PCB board 4 has a back side 42 facing the bottom wall of the installation groove 82 and a front side 41 opposite to the back side 42 . The bottom surface of the light blocking plate 3 is glued to the front surface 41 . The back 42 of the PCB 4 is provided with a number of electronic components (not labeled), a control chip (not labeled), a number of LED lights 5 and through holes 43 penetrating the PCB 4 up and down. The through hole 4 corresponds up and down to the through hole 31 of the light blocking plate 3 . There are no electronic components or soldering parts on the front side of the PCB board 4 . Such setting makes the overall thickness of the display device 100 thinner, thereby making the display clearer.

A plurality of light guide elements 6 are also provided on the back surface 42 of the PCB board 4 corresponding to the LED lights 5 . The light guide element 6 is provided with a see-through portion 61 fixed in the through hole 43 and extending upward into the through hole 31 , a first part 63 shielding under the LED lamp, and an arc transition connecting the first part 63 and the second part 62 of the see-through part 61 . The first part 63 extends horizontally and is located below the LED lamp, and has a first reflective surface 631 at the bottom. The second portion 62 has a first reflective surface 621 on the outside, the see-through portion 61 extends upward as a whole, and its end is a horizontal plane disposed below the display film sticker 2 .

To sum up, in the embodiment of the present invention, the LED lamp 5 is arranged on the side of the PCB 4 facing the cavity of the box body 7, thereby reducing the thickness of the entire display device 100, and because Electronic components, LED lights 5 and control chips are all arranged on the back side 42 of the PCB board 4 in the form of patches, which avoids easy formation of water storage in the display device because the refrigerator drawer 200 is placed in the refrigerator for a long time. On the upper surface of the display device 100 , moisture will penetrate the PCB board 4 of the display device 100 , making the internal electrical components short circuit and causing the LED lamp 5 to malfunction. In addition, the light from the LED lamp 5 is reflected by the first reflective surface 631 and the second reflective surface 621 of the light guide element 2, and then irradiated from the bottom end of the see-through part 61 to the display film sticker 2, and the display The touch area 22 of the film sticker 2 and the feedback area 21 located on the periphery of the touch area 22 illuminate and pass through the panel 1 to achieve a display effect.

When the user needs to use various functions displayed on the refrigerator display device 100, he only needs to press the operation surface 11 corresponding to the touch area 22 of the panel 1, and the feedback area 21 and the control chip of the PCB board 4 Accepting it will achieve the effect of manipulation.

In addition, the above embodiments are only used to illustrate the present invention and not to limit the technical solutions described in the present invention. The understanding of this description should be based on those skilled in the art. It is throughout before, and for example, the directional descriptions such as "front", "rear", "left", "right", "upper" and "lower", although this specification has described the present invention with reference to the above-mentioned embodiments Detailed description, however, those of ordinary skill in the art should understand that those skilled in the art can still modify or equivalently replace the present invention, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be fall within the scope of the claims of the present invention.

Claims (10)

1. a display device, paste including panel, pcb board and bonding display film on the panel, described panel has operating surface above and is positioned below the bottom surface towards described pcb board, described display film patch is bonded on described bottom surface, it is characterized in that: described pcb board has the back side of the front towards described panel and described vis-a-vis and is located at the LED on the described back side, described display device is additionally provided with in order to the light-guide device by the ray guidance of described LED to described front。

2. display device as claimed in claim 1, it is characterised in that: described pcb board is provided with the through hole run through up and down, and described light-guide device has the perspective portion of the described upper front being exposed to described pcb board from described through hole。

3. display device as claimed in claim 3, it is characterised in that: described display device also includes fitting up and down the light barrier of described display film patch and described pcb board, and described light barrier is provided with the perforation corresponding with described through hole to house described perspective portion。

4. display device as claimed in claim 3, it is characterised in that: described display film patch is typographical display pattern or word。

5. display device as claimed in claim 1, it is characterised in that: described panel is the material that can have an X-rayed, and is made by the interior transfer of injection moulding in film or film。

6. display device as claimed in claim 4, it is characterised in that: described display film is attached at the top in described perspective portion to accept the irradiation of described LED light。

7. display device as claimed in claim 3, it is characterized in that: described light-guide device be provided be fixed in described through hole and described perforation described perspective portion, block the Part I below described LED and arc-shaped transition and connect the Part II of described Part I and described perspective portion, the light of described LED is refracted in described perspective portion via described Part II。

8. a refrigerator drawer, including box body, cover the lid on described box body and the display device being horizontally fixed on lid, it is characterized in that: described lid is provided with the inner surface inside described box body and the outer surface relative with described inner surface, described display device has pcb board and is arranged on the LED on described pcb board, described pcb board has the back side towards described outer surface and the front contrary with the described back side, described LED is arranged on the described back side of described pcb board, and described display device is additionally provided with in order to the light-guide device by the described front of the ray guidance of described LED to described pcb board。

9. refrigerator drawer as claimed in claim 8, it is characterised in that: described pcb board is provided with the through hole run through up and down, and described light-guide device has the perspective portion of the described upper front being exposed to described pcb board from described through hole。

10. refrigerator drawer as claimed in claim 9, it is characterised in that: described display device also includes the light barrier being fitted on the front of described pcb board, and described light barrier is provided with the perforation corresponding with described through hole to house described perspective portion。