CN201622785U - Display panel structure and display panel structure for refrigerator - Google Patents

Abstract

The utility model relates to a display panel structure, which comprises a display circuit board, an LED chip installed on the front surface of the display circuit board, and a display mask located in front of the light emitting surface of the LED chip, and a light-passing block is arranged between the display circuit board and the display mask. A plurality of light channels spaced apart from each other are formed between the two light-transmitting blocks. Display units that need to be illuminated for display are printed on the display film, and the two ends of the light channel correspond to the LED chips and the display units on the display film respectively. In addition, the utility model also provides a display panel structure for a refrigerator. The utility model has low cost and better display effect.

Description

Display panel structure and display panel structure for refrigerator

technical field

The utility model relates to a display panel structure and a display panel structure for a refrigerator.

Background technique

Most computer temperature-controlled refrigerators (or wine cabinets) have temperature and specific function displays. In addition to using LCD liquid crystal display solutions, another solution uses light-emitting diodes (LEDs) for display.

When displaying with LEDs, two implementation schemes are currently used. One scheme is to install several standard seven-segment digital tubes on the display circuit board to display the temperature value, and separately install several LED indicators as refrigerator status displays (such as quick freezing, alarm, etc.) etc.); Another solution is to combine the display content into an LED display module, which includes temperature display and specific function display, and then install the display module on the display circuit board. The display circuit boards of these two schemes are all installed at the rear of the display mask, and a transparent display window is opened at the corresponding position of the display module.

Since the nixie tube or display module itself already has a layer of film, the above scheme will cause blurred display content due to the gap between the display film and the nixie tube or display module. The mask also leads to a higher cost of the entire display solution. And when several LED indicator lights are used as refrigerator status display, it is also easy to cross light with each other, which affects the display effect.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a display panel structure with low cost and better display effect.

In addition, the utility model also provides a display panel structure for a refrigerator.

In order to achieve the above object, the technical solution of the present utility model is: a display panel structure, including a display circuit board, an LED chip installed on the front surface of the display circuit board, and a display mask located in front of the light emitting surface of the LED chip, the display circuit board and the display panel. There are light-passing blocks between the masks, and multiple light channels separated from each other are formed between the two light-passing blocks. Display units that need to be illuminated are printed on the display film, and the two ends of the light channels correspond to LED chips. Display unit with display mask on.

The display unit of the display mask is light-transmitting, and the rest is opaque.

The light passing block is installed and fixed on the front of the display circuit board through the positioning device, and the light passing block is attached to the front of the display circuit board.

In addition, the utility model also provides a display panel structure for a refrigerator, which includes a housing, a display circuit board installed and fixed inside the housing, and a display mask attached to the outer surface of the housing and located in front of the light-emitting surface of the LED chip. There is a light-passing block between the circuit board and the display film, and a plurality of light channels separated from each other are formed between the two light-passing blocks. The display film is printed with a display unit that needs to be illuminated. The two ends of the light channel are respectively Corresponding to the LED chip and the display unit on the display mask.

The casing is provided with a display window opening capable of passing through the light-transmitting block, the top surface of the light-transmitting block is flush with the surface of the casing, and the display mask is pasted on the top surface of the casing and the light-transmitting block.

The display circuit board is equipped with buttons, and the button units and button positions on the display mask correspond to the positions of the display circuit board.

Compared with the prior art, the utility model has the following advantages,

The utility model arranges a light-transmitting block between the display circuit board and the display film, so that each part of the display light realizes independent display, avoiding the cross-light phenomenon in the prior art, which affects the display effect.

In addition, the utility model has the advantages of simple structure, low manufacturing cost and clear display effect.

Description of drawings

Fig. 1 is a structural schematic diagram of the display panel structure of the utility model for a refrigerator;

Fig. 2 is a structural schematic diagram showing a circuit board;

Fig. 3 is the structural schematic diagram showing facial mask;

Fig. 4 is a structural schematic diagram of the light-passing block.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The utility model discloses a display panel structure, which comprises a display circuit board, an LED chip installed on the front surface of the display circuit board, and a display mask located in front of the light emitting surface of the LED chip, and a light-through block is arranged between the display circuit board and the display mask A plurality of light channels spaced apart from each other are formed between the two light-passing blocks, and display units that need to be illuminated are printed on the display film, and the two ends of the light channel correspond to the LED chips and the display units on the display film respectively.

In addition, as shown in Figure 1, the utility model also provides a display panel structure for a refrigerator, including a housing 6, a display circuit board 1 installed and fixed inside the housing 6 and affixed to the outer surface of the housing 6 and The display film 7 located in front of the light-emitting surface of the LED chip 4, the light-passing block 2 is arranged between the display circuit board 1 and the display film 7, and a plurality of mutually separated light channels 3 are formed between the two light-passing blocks 2, the display Display units that need to be illuminated for display are printed on the mask 7 , and the two ends of the light channel 3 correspond to the LED chips 4 and the display units on the display mask 7 respectively.

Referring to FIG. 2 , which shows a schematic diagram of the circuit board 1 , each LED chip 4 used for display is mounted on the front surface of the display circuit board 1 by patch mounting.

3 shows a schematic diagram of the mask 7, which shows that the back of the mask 7 has a self-adhesive, and the digital fields or text, icons, etc. of the displayed content are light-transmissive, and the rest are light-proof.

Referring to the schematic diagram of the light-passing block 2 in FIG. 4 , the bottom opening of the light channel 3 on the light-passing block 2 corresponds to the position of the LED chip on the display circuit board 1 , and the top opening corresponds to the display unit of the display film 7 .

The light-transmitting block 2 is installed and fixed on the front of the display circuit board 1 through a positioning device, and its bottom surface is attached to the front of the display circuit board 1, and each LED chip 4 on the display circuit board 1 is embedded in the light channel 3 of the light-transmitting block 2 Opening position. The housing 6 has a display window opening through which the light-transmitting block 2 can pass. The display circuit board 1 with the light-transmitting block 2 is installed behind the housing 6 , and the top surface of the light-transmitting block 2 is flush with the surface of the housing 6 . The display mask 7 is pasted on the surface of the housing 6 and the light-transmitting block 2 , and the display content such as the digital field on the display mask 7 is aligned with the shape of the opening on the top surface of the light-transmitting block 2 when pasted.

In some button applications, the display mask 7 plays the role of a button mask at the same time. At this time, the button 5 is installed on the display circuit board 1, and the installation unit and the button position on the display mask 7 correspond to the position of the display circuit board 1, so that Realized the unification of display and button masks.

When the refrigerator or wine cabinet is working, the control system outputs signals to the display circuit board 1 through the software, and drives the LED chip 4 on the display circuit board 1 to turn on or off according to the display requirements, so that the corresponding content on the display mask 7 can be clicked according to the requirements. bright purpose.

Claims (6)

1. display panel structure, comprise display circuit board, be installed in the led chip of display circuit board front face surface and be positioned at the demonstration facial mask in led chip exiting surface the place ahead, it is characterized in that, be provided with logical light piece between display circuit board and the demonstration facial mask, form a plurality of spaced-apart optical channels between two logical light pieces, be printed with the display unit that needs luminous demonstration on this demonstration facial mask, the both ends of the surface of this optical channel correspond respectively to led chip and the display unit that shows on the facial mask.

2. display panel structure according to claim 1 is characterized in that, the display unit of this demonstration facial mask is a printing opacity, and remainder is lighttight.

3. display panel structure according to claim 1 and 2 is characterized in that, this logical light piece is fixed on the front of display circuit board by locating device, and should logical light piece and front of display circuit board fit.

4. display panel structure that is used for refrigerator, comprise housing, be fixed on the display circuit board of enclosure interior and be attached to housing outer surface and be positioned at the demonstration facial mask in led chip exiting surface the place ahead, it is characterized in that, be provided with logical light piece between display circuit board and the demonstration facial mask, form a plurality of spaced-apart optical channels between two logical light pieces, be printed with the display unit that needs luminous demonstration on this demonstration facial mask, the both ends of the surface of this optical channel correspond respectively to led chip and the display unit that shows on the facial mask.

5. the display panel structure that is used for refrigerator according to claim 4 is characterized in that, this housing has can be by the display window opening of logical light piece, and the end face of this logical light piece is surperficial concordant with housing, shows that facial mask is attached to the end face of housing and logical light piece.

6. the display panel structure that is used for refrigerator according to claim 4 is characterized in that this display circuit board is equipped with button, shows that push-button unit, the key position on the facial mask is corresponding with the position of display circuit board.

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