TW201305637A - Light-emitting module and display apparatus - Google Patents

Abstract

A light-emitting module includes a casing, a positioning member, and at least one optical film. The positioning member protrudes from the casing. The optical film has a hollow portion and at least one protrusion, both of which are disposed near at least one edge of the optical film. The hollow portion has a first side and a second side opposite to the first side. The protrusion is disposed at the edge of the hollow portion, and extended from the first side toward the second side. The optical film is disposed on the casing, and the positioning member passes through the hollow portion. The projected area of the positioning member on the optical film at least partially overlays the protrusion or the second side. A display apparatus including the light-emitting module is also disclosed in this invention.

Description

Light-emitting module and display device

The present invention relates to a light-emitting module and a display device, and more particularly to a light-emitting module and a display device capable of improving the positioning effect of an optical film and a casing.

The flat display device has been used in a wide variety of electronic products due to its low power consumption, light weight, light weight, and low radiation, and has gradually replaced the conventional cathode ray tube (Cathode Ray Tube). , CRT) display device.

Generally, a flat display device includes a display panel and a backlight module, and the backlight module provides light to the display panel to display the screen. In the backlight module, the optical properties are adjusted by a plurality of optical films to enhance or achieve a specific light-emitting efficiency. However, in the conventional backlight module, the connection strength between the optical film and the casing thereof is not good, so that the optical film often causes unintended displacement during transportation, and even jumps off the original preset position, so it is difficult The positioning is so that the backlight module cannot provide the optical characteristics or even operate normally.

Therefore, how to provide a light-emitting module and a display device can improve the positioning effect of the optical film and the casing, which is one of the current important issues.

In view of the above problems, an object of the present invention is to provide an improvement A light-emitting module and a display device for positioning effects of an optical film and a casing.

To achieve the above objective, a light emitting module according to the present invention comprises a housing, a positioning member and at least one optical film. The locating member is protruded from the housing, and the optical film has at least one hollow portion and at least one convex portion, wherein the hollow portion and the convex portion are adjacently located at at least one edge of the optical film, and the hollow portion has the first side and the opposite side On the second side of the first side, the protrusion is disposed at a periphery of the hollow portion and extends from the first side toward the second side. In addition, the optical film is disposed on the housing, and the positioning member is disposed through the hollow portion, and the projected area of the positioning member on the optical film at least partially overlaps the convex portion or the second side.

In one embodiment, the housing is made of metal or plastic.

In an embodiment, the positioning member and the housing are integrally formed or fixed to each other.

In one embodiment, the positioning member has at least one bent portion, and the projected area of the bent portion on the optical film at least partially overlaps the convex portion or the second side of the optical film.

In one embodiment, the vertical section of the positioning member is substantially L-shaped, curved, hook-shaped, T-shaped, or mushroom-shaped.

In an embodiment, when the vertical section of the positioning member is a mushroom head shape, the hollow portion is a circular hole, and the convex portion is disposed at a periphery of the circular hole.

In one embodiment, when the at least one convex portion is a plurality of convex portions, the convex portion loops are disposed at the periphery of the circular hole.

In an embodiment, the positioning member is disposed at an edge of the housing.

In an embodiment, the light emitting module is a backlight module or a lighting module.

To achieve the above object, a display device according to the present invention comprises a display panel and a light-emitting module as described above, and the light-emitting module emits light to the display panel.

As described above, in the light-emitting module and the display device of the present invention, the optical film has at least one hollow portion and at least one convex portion, the hollow portion has opposite first and second sides, and the convex portion is from the first side Extending toward the second side, whereby the convex portion can form a similar elastic structure, that is, the convex portion has elasticity. During the assembly of the optical film and the housing, when the positioning member passes through the hollow portion, the convex portion is pressed and bent, so that the optical film can be easily assembled on the housing. After the assembly is completed, the convex portion returns to its original state by the elastic restoring force. In addition, the structure of the positioning member of the present invention is specially designed, for example, its vertical section is substantially L-shaped, curved, hook-shaped, T-shaped, mushroom-shaped or other shape, so that the projected area of the positioning member on the optical film is At least partially overlapping the convex portion or the second side. Therefore, when the optical film is subjected to an external force and is intended to be separated from the positioning member in a direction parallel to the light-emitting direction of the light-emitting module, it is blocked by the positioning member and cannot be separated, thereby achieving an excellent positioning effect.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a light-emitting module and a display device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals.

FIG. 1 is a partial schematic view of a light emitting module 1 according to a preferred embodiment of the present invention. The light module 1 includes a housing 11 , a positioning member 12 , and at least one optical film 13 . 2 is a view of the housing 11 and the positioning member 12 of FIG. Intended, Figure 3 is a schematic illustration of the optical film 13 of Figure 1. In this embodiment, the light-emitting module 1 is a backlight module. In other embodiments, the light-emitting module 1 can also be a lighting module and can be used with other components.

Referring to FIG. 1 to FIG. 3, in the embodiment, the material of the housing 11 is not limited, and it may be, for example, metal or plastic. The housing 11 can be, for example, a front frame, a plastic frame, a backing plate, or any combination of the three. Here, the housing 11 is described by taking a metal back plate as an example. In addition, since the light-emitting module 1 of the present embodiment is a backlight module, as shown in FIG. 2 , the light-emitting module 1 further includes a light guide plate LG disposed on the casing 11 .

The positioning member 12 is protruded from the housing 11 and can be integrally formed with or fixed to the housing 11 . The positioning member 12 is integrally formed with the housing 11 as an example, and can be stamped, for example, by the housing. The positioning member 12 is formed by molding. In other embodiments, when the housing 11 is a plastic frame, the positioning member 12 can be formed by injection molding. In a particular embodiment, the positioning member 12 and the housing 11 can be separately fabricated, and then the positioning member 12 and the housing 11 can be secured to each other by various means of engagement (e.g., welding).

In addition, when the casing 11 is a plastic frame, the arrangement of the metal back plate can be omitted, that is, the function of the back plate can be replaced by the casing 11, thereby saving the development of the metal back plate mold. In addition, in the present embodiment, the positioning member 12 is disposed at one edge of the housing 11. However, in other specific embodiments, the positioning member 12 can be disposed at other positions of the housing 11. The positioning position of the positioning member 12 is not limited to the embodiment, and only needs to be able to provide the positioning function of the optical film 13. can.

In this embodiment, the light emitting module 1 has at least one optical film 13 . The optical film 13 may be a brightness enhancement film, a diffusion film, a polarizing film, an anti-reflection film, an anti-glare film, or a wide viewing angle film or the like. The optical film 13 has at least one hollow portion 131 and at least one convex portion 132, wherein the hollow portion 131 and the convex portion 132 are adjacent to at least one edge of the optical film 13. The hollow portion 131 has a first side S1 and a second side S2 that are oppositely disposed. The convex portion 132 is provided at the periphery of the hollow portion 131 and extends from the first side S1 toward the second side S2. With this design, the convex portion 132 forms a similar elastic structure.

When the optical film 13 is assembled with the casing 11, the optical film 13 is disposed on the casing 11, and the positioning member 12 is passed through the hollow portion 131. After assembly, the projected area of the positioning member 12 on the optical film 13 at least partially overlaps the convex portion 132. In the present embodiment, the structure of the positioning member 12 is specially designed such that the projected area of the positioning member 12 on the optical film 13 can at least partially overlap the convex portion 132. FIG. 6A is a schematic diagram of a vertical cross section of the positioning member 12 of the embodiment. As shown in FIG. 6A , the positioning member 12 has at least one bent portion B as an example. The projected area of the bent portion B on the optical film 13 at least partially overlaps the convex portion 132 of the optical film 13. Thereby, when the optical film 13 is subjected to an external force and is intended to be detached from the positioning member 12, it is blocked by the positioning member 12 and cannot be detached, thereby achieving an excellent positioning effect.

It should be noted that FIG. 4 is a schematic diagram of a process in which the optical film 13 is assembled to the casing 11. During the assembly of the optical film 13 and the casing 11, when the positioning member 12 passes through the hollow portion 131, The convex portion 132 is bent by being pressed, so that the optical film 13 can be easily assembled to the casing 11. After assembly, the convex portion 132 can be returned to its original state by elastic restoring force. The status is shown in Figure 1.

In other embodiments, the assembly and relative position of the optical film and the positioning member may have other aspects. FIG. 5 is a schematic diagram of another embodiment of the light-emitting module 1a. The main difference between the light-emitting module 1 and the light-emitting module 1 is that the positioning of the positioning member 12a of the light-emitting module 1a is different from that of the positioning member 12, so that after assembly, when optical The diaphragm 13 is disposed on the casing 11a, and when the positioning member 12a penetrates the hollow portion 131, the projected area of the positioning member 12a on the optical film 13 at least partially overlaps with the second side S2 of the hollow portion 131. In this aspect, the elastic force of the convex portion 132 can also be utilized to achieve the effect of easy assembly.

In addition to the shape of the positioning member 12 described above, the positioning member 12 can have a variety of variations to achieve an excellent positioning effect, as exemplified below.

As shown in Fig. 6B, the positioning member 12b is curved. As shown in FIG. 6C, the positioning member 12c has a hook shape, and the positioning member 12c has two bent portions B1 and B2. As shown in Fig. 6D, the positioning member 12d has a T shape. In the state shown in FIG. 6D, as shown in FIG. 7, the corresponding optical film 13d may have two convex portions 132 to form two similar elastic structures to correspond to the two end portions E1 and E2 of the T shape.

As shown in FIG. 6E, the positioning member 12e has a mushroom head shape, and in this aspect, as shown in FIG. 8, the hollow portion 131 of the corresponding optical film 13e is a circular hole, and the convex portion 132 is hollow. The periphery of the circular hole of the portion 131. Further, in order to enhance the positioning effect, in the embodiment shown in FIG. 8, the peripheral ring of the circular hole of the hollow portion 131 is provided with four convex portions 132. However, the number and size of the convex portions 132 can be adjusted according to the size of the circular hole of the hollow portion 131, and It is not limited to the embodiment shown in FIG.

FIG. 9 is a schematic diagram of a display device 2 according to a preferred embodiment of the present invention. The display device 2 includes a display panel DP and a light-emitting module 1 as shown in FIGS. 1 and 4. The light emitting module 1 emits light to the display panel DP to provide a light source required for the display panel DP. In the present embodiment, the display panel DP is exemplified by a liquid crystal display panel. In addition, in addition to the light-emitting module 1 shown in FIG. 1 and FIG. 4, the other illustrated light-emitting module (for example, the light-emitting module 1a of FIG. 5) can also be applied to the display device 2 for providing display. The light source required for device 2.

In summary, in the light-emitting module and the display device of the present invention, the optical film has at least one hollow portion and at least one convex portion, the hollow portion has opposite first and second sides, and the convex portion is from the first side Extending toward the second side, whereby the convex portion can form a similar elastic structure, that is, the convex portion has elasticity. During the assembly of the optical film and the housing, when the positioning member passes through the hollow portion, the convex portion is pressed and bent, so that the optical film can be easily assembled on the housing. After the assembly is completed, the convex portion returns to its original state by the elastic restoring force. In addition, the structure of the positioning member of the present invention is specially designed, for example, its vertical section is substantially L-shaped, curved, hook-shaped, T-shaped, mushroom-shaped or other shape, so that the projected area of the positioning member on the optical film is At least partially overlapping the convex portion or the second side. Therefore, when the optical film is subjected to an external force and is intended to be separated from the positioning member, it is blocked by the positioning member and cannot be separated, thereby achieving an excellent positioning effect.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or variations to the spirit and scope of the invention are It should be included in the scope of the patent application attached.

1, 1a‧‧‧Lighting Module

11, 11a‧‧‧ shell

12, 12a~12e‧‧‧ positioning parts

13, 13d, 13e‧‧‧ optical diaphragm

131‧‧‧ Hollow

132‧‧‧ convex

2‧‧‧Display device

B, B1, B2‧‧‧ bends

DP‧‧‧ display panel

E1, E2‧‧‧ end

LG‧‧‧Light guide plate

S1‧‧‧ first side

S2‧‧‧ second side

1 is a partial schematic view of a light-emitting module according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of the housing and the positioning member shown in FIG. 1; FIG. 3 is a schematic view of the optical film shown in FIG. FIG. 5 is a schematic diagram of another embodiment of a light-emitting module according to a preferred embodiment of the present invention; FIG. 6A to FIG. 6E are diagrams showing a preferred embodiment of the present invention; FIG. FIG. 7 and FIG. 8 are schematic diagrams showing various variations of the positioning member and the optical film according to the preferred embodiment of the present invention; and FIG. 9 is a preferred embodiment of the present invention. A schematic diagram of a display device.

1‧‧‧Lighting module

11‧‧‧Shell

12‧‧‧ Positioning parts

13‧‧‧Optical diaphragm

131‧‧‧ Hollow

132‧‧‧ convex

S1‧‧‧ first side

S2‧‧‧ second side

Claims (10)

A light-emitting module includes: a casing; a positioning member protruding from the casing; and at least one optical film having at least one hollow portion and at least one convex portion, the hollow portion and the convex portion being adjacently located At least one edge of the optical film, the hollow portion has a first side and a second side opposite to the first side, the convex portion is disposed at a periphery of the hollow portion, and from the first side toward the first a two-side extension; wherein the optical film is disposed on the housing, and the positioning member passes through the hollow portion, and a projected area of the positioning member on the optical film and the convex portion or the second side are at least Partial overlap. The lighting module of claim 1, wherein the housing is made of metal or plastic. The lighting module of claim 1, wherein the positioning member is integrally formed with the housing or fixed to each other. The illuminating module of claim 1, wherein the locating member has at least one bent portion, a projected area of the bent portion on the optical film, and the convex portion or the first portion of the optical film The two sides overlap at least partially. The light-emitting module of claim 1, wherein the vertical section of the positioning member is substantially L-shaped, curved, hook-shaped, T-shaped, or mushroom-shaped. The illuminating module described in claim 5, when the locating member When the vertical section is a mushroom head shape, the hollow portion is a circular hole, and the convex portion is disposed around the circular hole. The light-emitting module of claim 6, wherein the at least one convex portion is a plurality of convex portions, and the convex portions are annularly disposed around the circular hole. The illuminating module of claim 1, wherein the locating member is disposed at an edge of the housing. The lighting module of claim 1, wherein the lighting module is a backlight module or a lighting module. A display device comprising: a display panel; and a light-emitting module according to any one of claims 1 to 9, which emits light to the display panel.