JP2006032016A - Support structure for straight down back light module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support structure for a straight down back light module preventing deformation of a lamp and a diffusion plate due to temperature change. <P>SOLUTION: This straight down back light has the diffusion plate, a reflection plate (back plate) arranged in the lower part of the diffusion plate, the lamp arranged between the diffusion plate and the reflection plate, and a supporting member arranged between the diffusion plate and the reflection plate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a support structure for a straight down backlight module, and more particularly, to a support structure for preventing the deformation of a diffusion plate and a lamp due to a change in temperature and improper rigidity of a material.

  A first conventional straight down backlight module having a diffuser plate, a reflective plate, a prism, a diffuser strip, two posts, and a plurality of lamps is shown in FIG. The reflection plate is arranged at the lower part of the diffusion plate, and the prism is arranged at the upper part of the diffusion plate. The support column is disposed on the reflection plate and between the diffusion plate and the reflection plate. The lamp is disposed between the diffusion plate and the reflection plate.

  In the conventional straight down backlight module described in Patent Document 1 of FIG. 1, in order to support the diffusion plate, several support members are generally arranged between the reflection plate and the diffusion plate. This prevents a decrease in optical performance of the straight down backlight module due to deformation of the diffusion plate. However, as the size of the LCD increases, the lamp becomes larger and longer, which causes deformation of the lamp, which degrades the optical performance of the entire straight down backlight module.

  FIG. 2 shows a second conventional straight down backlight module for solving the problems of the conventional straight down backlight module.

The second conventional straight down backlight module described in Patent Document 2 has a support column disposed under the lamp. However, as the size of the LCD increases, the diffusion plate also increases. In this case, the diffusion plate is deformed by the heat of the lamp, and the optical performance of the entire straight down backlight module is degraded.
Taiwan Patent Information 567291 (Figure 1) JP-A-5-209703 (FIG. 2)

The above-described conventional straight down backlight module has the following problems.
<1> In the first type of conventional straight down backlight module disclosed in Patent Document 1, as the size of the LCD increases, the lamp becomes larger and longer, thereby causing deformation of the lamp, and the straight down back backlight module. As a whole, the optical performance of the light module is degraded.
<2> In the second type of conventional straight down backlight module disclosed in Patent Document 2, as the LCD increases in size, the diffusion plate also increases. In this case, the diffusion plate is deformed by the heat of the lamp. However, the optical performance of the entire straight down backlight module is degraded.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a straight down backlight module that supports a diffusion plate and a lamp that solve the problems of the prior art as described above and prevents the deformation thereof.

  That is, even if the size of the LCD and the diffusion plate is increased, the poor rigidity does not cause deformation of the diffusion plate and the lamp, and even when the LCD is used for a long time, the diffusion plate and the reflection plate SUMMARY OF THE INVENTION It is an object of the present invention to provide a straight down backlight module which prevents expansion deformation due to heat and does not deteriorate optical properties as a whole.

  In order to solve the above problems, a straight down backlight module according to the first invention of the present application includes a diffusion plate, a reflection device disposed below the diffusion plate, and a space between the diffusion plate and the reflection device. And a support member for supporting the lamp, comprising a lamp cover disposed on the reflector and between the diffuser plate and the reflector. It is.

  A straight down backlight module according to a second aspect of the present invention is the straight down backlight module according to the first aspect, wherein the support member is disposed on the reflection device and between the diffusion plate and the reflection device for supporting the diffusion plate. It is characterized by comprising at least one pin.

  A straight down backlight module according to a third invention is characterized in that, in the first invention, the reflection device is a reflection plate.

  A straight down backlight module according to a fourth invention is characterized in that, in the first invention, the reflection device comprises a substrate and a reflection piece installed on the substrate.

  A straight down backlight module according to a fifth aspect of the present invention is the reflective plate according to the first aspect, wherein the reflecting device is provided with an opening, and the support member connects the reflecting plate to connect the opening. It is characterized by comprising a pin made of a handle that can be inserted into the reflection plate via a pin.

  A straight down backlight module according to a sixth aspect of the invention is the first aspect of the invention, wherein the reflection device is a reflection plate having an opening, and the support member is fixed on the reflection plate opening. It is a feature.

  In a straight down backlight module according to a seventh aspect of the present invention, in the first aspect, the lamp cover of the support member has a U-shaped lower half and an inverted U-shaped upper half. It is characterized by.

  A straight down backlight module according to an eighth invention is characterized in that, in the first invention, the support member forms a corrugated shape.

  A straight down backlight module according to a ninth invention is characterized in that, in the first invention, the lamp cover of the support member forms a U-shape.

  A straight down backlight module according to a tenth invention is characterized in that, in the first invention, the lamp cover of the support member forms a quadrangle.

  A straight down backlight module according to an eleventh aspect is characterized in that, in claim 1, the lamp cover of the support member forms a polygon.

  A straight down backlight module according to a twelfth aspect of the present invention is characterized in that, in the first aspect, the support member is made of a synthetic resin.

  In a straight down backlight module according to a thirteenth aspect of the present invention, the support member comprises a polystyrene resin derivative, polymethylmethacrylate, polycarbonate, epoxi, silicon, an olefin resin, a polyamide resin, and a polymer resin. It is characterized by comprising a synthetic resin.

  The straight down backlight module according to the present invention includes a lamp cover on a support member, and an additional member such as at least one pin as needed to support the lamp, so that it can be used regardless of the size of the LCD. Even when the usage time is long, it is possible to prevent deformation of the lamp and the diffusion plate due to temperature change, and it is possible to prevent deterioration of the optical performance of the entire straight down backlight module due to this. .

  The present invention includes a diffuser plate, a reflector disposed below the conventional diffuser plate, a lamp disposed between the diffuser plate and the reflector plate, and on the reflector plate and between the diffuser plate and the reflector plate. And a support member disposed on the surface. The support member has an arched lamp cover to prevent the lamp from being deformed.

  Further, the support member may include an additional member such as a pin for supporting the diffusion plate and the lamp.

  Embodiments of the present invention will be described below with reference to the drawings.

  As Example 1 of the present invention, there is application of a small LCD. As shown in FIGS. 3A and 4A, the straight down backlight module 10 of the present invention includes a diffusion plate 20, a reflection plate 30, a lamp 40, and a support member 50 having a lamp cover 51. Yes.

  The reflection plate 30 is disposed below the diffusion plate 20 and the lamp 40. The lamp 40 is disposed between the diffusion plate 20 and the reflection plate 30. The support member 50 is disposed on the reflection plate 30 and between the diffusion plate 20 and the reflection plate 30.

  As shown in FIGS. 3A and 4A, the support member 50 has a lamp cover 51. The lamp 40 is covered and supported by a lamp cover 51.

  Since the support member 50 is formed of a synthetic resin and a heat resistant material, the support member 50 supports the lamp 40 and does not cause deformation thereof.

  In the present embodiment, the support member 50 is placed on the upper part of the reflection plate, and substantially forms a corrugated structure. The size of the support member 50 is determined by the space between the diffusion plate 20 and the reflection plate 30.

  In the present embodiment, the lamp cover 51 of the support member 50 is formed in an inverted U-shaped upper half. The diameter of the inverted U-shaped portion of the support member 50 is larger than the diameter of the lamp 40. The lamp 40 is covered by a lamp cover 51, thereby minimizing deformation of the lamp 40 due to heat.

  As shown in FIG. 4A, the support member 50 is bonded and fixed to the reflection plate 30, or the slot 31 is installed in the reflection plate 30 and the hook 60 is formed below the support member 50. The hook 60 can be inserted through the slot 31, thereby holding the reflecting plate 30 and supporting the lamp 40.

  When the size of the LCD increases, the additional member pin 52 is disposed on the support member 50 to form a support member 50 '.

  3A and 4B, the straight down backlight module 10 according to the second embodiment of the present invention includes a diffusion plate 20, a conventional external reflection device 30, a lamp 40, and a lamp cover 51. And a support member 50 '. The support member 50 ′ has at least one additional member pin 52.

  The conventional reflection device 30 may be a substrate on which a reflection plate or a reflection piece is arranged.

  The conventional reflector 30 is disposed below the diffuser plate 20 and the lamp 40. The lamp 40 is disposed between the diffusion plate 20 and the reflection device 30. The support member 50 ′ is disposed on the reflection device 30 and between the diffuser plate 20 and the reflection device 30.

  As shown in FIGS. 3B and 4B, the support member 50 ′ supports the diffusion plate 20 and the lamp 40 simultaneously. The support member 50 ′ has a lamp cover 51, and the lamp 40 is supported by being covered with the lamp cover 51.

  Since the support member 50 ′ is formed of a synthetic resin and a heat resistant material, the support member 50 ′ supports the diffusion plate 20 and the lamp 40 and does not cause deformation of the diffusion plate 20 and the lamp 40.

  In the present embodiment, the support member 50 ′ is disposed on the reflection device 30 and has a corrugated structure. The size of the support member 50 ′ is determined by the space between the diffuser plate 20 and the reflection device 30. The size of the pin 52 of the support member 50 ′ matches the height between the diffusion plate 20 and the reflection device 30 so as to support the diffusion plate 20.

  In the present embodiment, the lamp cover 51 of the support member 50 ′ is formed in an inverted U shape at the upper half. The diameter of the inverted U-shaped portion of the support member 50 ′ is larger than the diameter of the lamp 40. The lamp 40 is covered by a lamp cover 51, thereby minimizing deformation of the lamp 40 due to heat.

  As shown in FIG. 6, the slot 31 is installed in the reflection device 30, and the hook 60 is formed on the lower side of the support member 50 ′. The hook 60 can be inserted through the slot 31 and thereby holds the reflection device 30.

  Alternatively, the handle 521 can be disposed under the pin 52 of the support member 50 ′ and in the opening 32 provided in the reflection device 30. As shown in FIG. 6, when the support member 50 ′ is disposed on the reflection device 30, the handle 521 is installed through the opening 32 and joined to the sales company device 30. Alternatively, the support member 50 ′ may be bonded and fixed to the reflecting device 30 and the handle 521 may be bonded and fixed to the opening 32. Furthermore, the handle 521 can be connected and fixed to the opening 32 of the reflection device 30 with a string or the like.

  The support member 50 ′, the lamp cover 51, the pin 52, and the handle 521 can be formed in various shapes, and can be coupled to each other by various methods.

  Figures 5A, 5B, 5C and 5D show pins forming different shapes.

  As shown in FIG. 6, the support member 50 ′ can be fixed to the reflecting device 30 by various methods such as hook fixing, fixing with an adhesive fixing string, or fixing with a handle.

  Furthermore, as shown in FIGS. 7A and 7B, the support member 50 ′ may be provided with a single or a plurality of lamp covers 51.

  The lamp cover 51 of the support member 50 ′ can be formed in a U shape, a circular shape, a square shape, or a polygon shape as shown in FIGS. 8A, 8B, 8C, and 8D. In the above embodiment, the lamp cover simply covers the lamp, but the lamp can be fastened as shown in FIG. The method of covering the lamp with the lamp cover is not limited to the one described here.

  As for the member of the support member, for example, polystyrene resin derivatives such as HIPS, ABS, MS, and SAN, olefin resins such as polymethylmethacrylate (PMMA), polycarbonate (PC), Epoxy, silicon, PE and PP, or A polyamide resin such as nylon and a polymer resin such as PET can be used.

  Although the embodiments of the present invention have been described above, it is possible for the engineer to derive variations other than the above embodiments without exceeding the scope of the present invention, that is, the present invention is not limited to the embodiments described above. It is not limited to.

Sectional view of straight down backlight module according to the first prior art Sectional view of a straight down backlight module according to the second prior art Sectional drawing of the straight down backlight module which concerns on embodiment of this invention Installation diagram of support member to straight down backlight module according to the present invention Illustration of the use of different plungers in the straight down backlight module according to the invention Explanatory drawing which showed the installation state to the reflecting device in the straight down backlight module which concerns on this invention of a different support member Explanatory drawing which showed the single and several lamp cover in the straight down backlight module which concerns on this invention Explanatory drawing which showed a mode that they formed the U-shape, circular, square shape, and polygonal shape in the lamp cover in the straight down backlight module concerning the present invention. Explanatory drawing of support member that supports lamp

Explanation of symbols

10 ... Straight down backlight module 20 ... Diffuser plate 30 ... Reflector 31 ... Slot 32 ... Opening 40 ... Lamp 50 ... Support member 50 '... Pins Support member 51 ... Lamp cover 52 ... Pin 521 ... Handle 60 ... Hook

Claims (13)

A diffusion plate;
A reflection device disposed under the diffusion plate;
A lamp disposed between the diffuser plate and the reflector;
It comprises a lamp cover disposed on the reflection device and between the diffusion plate and the reflection device, and comprises a support member for supporting the lamp,
Straight down backlight module.   2. The straight down backlight module according to claim 1, wherein the support member includes at least one pin disposed on the reflection device and between the diffusion plate and the reflection device for supporting the diffusion plate. A straight down backlight module.   2. The straight down backlight module according to claim 1, wherein the reflection device is a reflection plate.   The straight down backlight module according to claim 1, wherein the reflecting device includes a substrate and a reflecting piece installed on the substrate.   2. The straight down backlight module according to claim 1, wherein the reflection device is a reflection plate having an opening, and the support member is inserted into the reflection plate through the opening so as to join the reflection plate. A straight down backlight module comprising a pin made of a handle that can be used.   The straight down backlight module according to claim 1, wherein the reflection device is a reflection plate having an opening, and the support member is fixed on the reflection plate opening. module.   2. The straight down backlight module according to claim 1, wherein the lamp cover of the support member has a U-shaped lower half and an inverted U-shaped upper half. Light module.   2. The straight down backlight module according to claim 1, wherein the support member forms a corrugated shape.   2. The straight down backlight module according to claim 1, wherein the lamp cover of the support member forms a U-shape.   The straight down backlight module according to claim 1, wherein the lamp cover of the support member forms a quadrangle.   The straight down backlight module according to claim 1, wherein the lamp cover of the support member forms a polygon.   2. The straight down backlight module according to claim 1, wherein the support member is made of a synthetic resin.   2. The straight down backlight module according to claim 1, wherein the support member is made of a synthetic resin including a polystyrene resin derivative, polymethylmethacrylite, polycarbonate, epoxi, silicon, an olefin resin, a polyamide resin, and a polymer resin. A straight down backlight module.

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