CN2745084Y - Liquid crystal display device and light emitting device thereof - Google Patents

Abstract

The utility model relates to a liquid crystal display device and a light emitting device thereof. The liquid crystal display device comprises: a housing, an array light emitting diode and a light guide group. The housing has a plurality of receiving holes; the array light emitting diode is arranged in the housing to serve as a light source; the light guide group is arranged above the array light emitting diode and has a plurality of light guide columns, wherein the light guide columns correspond to the receiving holes respectively, and each light guide column passes through the corresponding receiving hole and is combined with the housing.

Description

Liquid crystal display device and light emitting device thereof

technical field

The utility model relates to a liquid crystal display device, in particular to a liquid crystal display device with an array type light-emitting diode device to provide more information and information outside the display surface of the display device.

Background technique

Nowadays, light-emitting diodes are used in many fields as light sources for display devices. The main reasons are low operating voltage, low power consumption, rich colors, and low prices, such as digital displays for elevator floors, digital displays for air conditioner temperatures, traffic lights, and even large electronic billboards. The initial application of light-emitting diodes is to use a single light-emitting diode as a light-emitting unit as a unit for displaying patterns and texts, and use a single light guide rod to effectively guide the light source to show the desired effect. Afterwards, arrayed LEDs were further developed by arranging a single light guide column in a matrix. However, since arranging single light guide rods one by one into an array is time-consuming and costly, and is not conducive to miniaturization of the volume, how to overcome the above problems has become one of the important issues in the industry.

Utility model content

In view of the shortcomings of the prior art, the utility model proposes a liquid crystal display device, comprising: a casing, an array-type light-emitting diode and a light guide group, the casing has a plurality of receiving holes; the array-type light-emitting diode is arranged in the casing , as a light source; the light guide group is arranged above the arrayed LEDs and has a plurality of light guide columns, wherein the light guide columns correspond to the receiving holes respectively, and each light guide column passes through the corresponding receiving holes and is combined with the housing.

In the aforementioned liquid crystal display device, in a preferred embodiment, the light guiding group further includes a plurality of ribs connected to the light guiding columns.

In the aforementioned liquid crystal display device, in a preferred embodiment, the thickness of the ribs ranges from 1.5 mm to 2.0 mm.

In the aforementioned liquid crystal display device, in a preferred embodiment, the length of the ribs ranges from 3.5mm to 4.5mm

In the aforementioned liquid crystal display device, in a preferred embodiment, the liquid crystal display device is a liquid crystal television.

Description of drawings

In order to make the above-mentioned purposes, features, structures, functions and advantages of the present utility model more obvious and understandable, the preferred embodiments are specifically cited below and described in detail with accompanying drawings, wherein:

Fig. 1 is the schematic diagram representing housing in the utility model;

Fig. 2 is the schematic diagram showing the light-emitting device in the utility model;

Fig. 3 is a schematic diagram showing the combination of the light guide column and the housing in the present invention; and

Fig. 4 is a schematic front view showing the light guide column of the present invention.

Explanation of reference signs

1～shell; 2～accommodating hole;

3～light guide group; 5～array light-emitting diodes;

6～Display; 7～Lighting device;

10～liquid crystal display device; 31～light guide column;

32 ~ ribs.

Detailed ways

Please refer to Figs. 1 and 2 at first, Fig. 1 is a schematic view showing the housing of the present invention, the liquid crystal display device 10 of the present invention comprises a housing 1 and a light emitting device 7, wherein the housing 1 is provided with a display 6, and There are a plurality of receiving holes 2; the display 6 can be a flat display device, such as a liquid crystal display (Liquid Crystal Display, LCD), a plasma display (Plasma Display Panel, PDP), an organic light emitting display (Organic Light Emitting Display, OLED), etc., In this example, it is a liquid crystal display device; and the receiving holes 2 are punched on the casing 1 in an array arrangement for light penetration, and by providing the receiving holes 2 to provide an additional display area of the liquid crystal display device 10, the liquid crystal display device 10 can be used For displaying information such as additional images, text or numbers.

Then please refer to Fig. 2, Fig. 2 is a schematic view showing a light-emitting device in the utility model, a light-emitting device 7 includes: an array type light emitting diode 5, and a light guide group 3, wherein the light guide group 3 is arranged on the array type light emitting diode 5 above, and has a plurality of light guide columns 31 .

As shown in Figure 3, Figure 3 is a schematic diagram showing the combination of the light guide column and the housing in the present invention. 1 combined. In addition, as shown in FIG. 4, FIG. 4 is a schematic front view showing the light guide group in the present invention. The light guide group 3 also includes a plurality of ribs 32 for connecting the light guide columns 31 to serve as a gap between the light guide columns 31. Bridges of light passing. In this embodiment, the light guide column 31 and the ribs 32 are made of plastic material by integral injection molding. Since the plastic material can have high light transmittance and the injection molding cost is very low, it needs to be compared with the existing light emitting diodes. Compared with the lighting method in which individual single light guide columns are arranged in a matrix, the effect of cost saving and labor saving can be fully achieved.

In addition, the ribs 32 themselves are generally cylindrical, and their function is not only to serve as the space between the light guide columns 31 in structure, when the light emitted by the arrayed LEDs 5 irradiates the light guide group 3, the ribs 32 It can also play the function of guiding light, and guide and concentrate the light in the light guide column 3 . In addition, in order to give full play to the effect of the ribs 32 in guiding and concentrating the light, the thickness and length of the ribs 32 are preferably between 1.5 mm to 2.0 mm and between 3.5 mm to 4.5 mm.

In summary, with the help of the design of the light-emitting device with arrayed light-emitting diodes of the present invention, besides the function of displaying images, the liquid crystal display can further display more images, numbers or Text information, such as displaying information such as time and channel, but the information that can be displayed is not limited to the above.

Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the scope of the utility model, and those skilled in the art can make some changes and modifications without departing from the scope of the utility model, and the protection scope of the utility model What the claims determine and their equivalents shall prevail.

Claims (8)

1. liquid crystal indicator is characterized in that comprising:

One housing has a plurality of accommodation holes;

An array formula light emitting diode is arranged on this housing; And

One leaded light group is arranged at this array LED top and has a plurality of leaded light posts and passes through those accommodation holes and combine with this housing.

2. liquid crystal indicator as claimed in claim 1 is characterized in that this leaded light group also comprises: in order to connect a plurality of flanks of those leaded light posts.

3. liquid crystal indicator as claimed in claim 2, the thickness that it is characterized in that those flanks is 1.5mm to 2.0mm.

4. liquid crystal indicator as claimed in claim 2, the length that it is characterized in that those flanks is 3.5mm to 4.5mm.

5. light-emitting device that is applicable to liquid crystal indicator is characterized in that comprising:

An array formula light emitting diode; And

One leaded light group is arranged at this array LED top and has a plurality of leaded light posts.

6. light-emitting device as claimed in claim 5 is characterized in that this leaded light group also comprises: in order to connect a plurality of flanks of those leaded light posts.

7. light-emitting device as claimed in claim 6, the thickness that it is characterized in that those flanks is 1.5mm to 2.0mm.

8. light-emitting device as claimed in claim 6, the length that it is characterized in that those flanks is 3.5mm to 4.5mm.