WO2005093499A1 - Backlight assembly with side frame and assembly method thereof - Google Patents

Backlight assembly with side frame and assembly method thereof

Info

Publication number
WO2005093499A1
WO2005093499A1 PCT/CN2004/000263 CN2004000263W WO2005093499A1 WO 2005093499 A1 WO2005093499 A1 WO 2005093499A1 CN 2004000263 W CN2004000263 W CN 2004000263W WO 2005093499 A1 WO2005093499 A1 WO 2005093499A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
assembly
side frame
frame
backlight
backlight assembly
Prior art date
Application number
PCT/CN2004/000263
Other languages
French (fr)
Chinese (zh)
Inventor
Junru Chen
Original Assignee
Quanta Display Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086Positioning aspects
    • G02B6/009Positioning aspects of the light source in the package

Abstract

The present invention relates to a backlight assembly with a side frame, which includes: a stacked assembly composed by stacking a support frame, a reflecting plate, and a light guide plate; a tubular light source assembly which is provided on the side of the light guide plate of the stacked assembly; optical films which are provided on the stacked assembly; and a frame, which has a groove for accommodating the tubular light source and fixing the stacked assembly. The present invention also relates to a method for assembling the backlight assembly with a side frame. The backlight assembly with a side frame according to the invention makes the structure design of whole backlight assembly more simple and the assembling of assembly easier and the structure more steady, and reduces the cost of the model.

Description

The method of assembling the backlight assembly and the side frame

TECHNICAL FIELD

The present invention relates to a backlight side of the frame assembly, in particular, it relates to a frame having a lateral recess receiving the lamp assembly supported by the support frame so that, the light guide plate and the reflection plate and a lamp stacked assembly of the stacked components to be fixed backlight assembly. The present invention further relates to a method of assembling the backlight assembly of the side frame.

【Background technique】

With the rapid development of semiconductor technology, various electronic display device as much as possible to achieve the required light, thin, short, and small requirements. Especially flat display device such as liquid crystal displays, plasma displays and the like, but also require higher resolution, lighter, thinner and the like. According to this industry are all committed to minimize unnecessary assembly element.

Currently liquid crystal display devices have been widely used in desktop computers and notebook computers. And a liquid crystal display device of the liquid crystal display panel assembly and a backlight assembly is assembled by the assembly process are different, so that such components subsequently assembled with each other. The conventional backlight assembly shown in Figure 1, the use of a type supporting the upper frame A and frame B holding the liquid crystal display device element such as a reflective plate, a light guide plate, and lamp components together. Wherein the mouth edge of the upper frame A is provided with a plurality of engagement elements and is provided for supporting and holding the card frame B periphery engagement member provided to be fixed to b mutual jamming. However, due to the liquid crystal display device light stress frame, so that the thin lip must be made thinner due to the upper frame architecture is too soft, less susceptible to injection molding, the overall structure is complicated and assembling more complex and increases the manufacturing cost. And the frame is thin, soft mouth causes poor stability.

Further, U.S. Patent No. 6,502,945B2 discloses a stacked and a method of assembling the backlight assembly. This patent disclosed a stacked backlight assembly includes a mold frame, a reflecting plate, a light guide plate disposed on the reflection plate, the light guide is placed in a pair of opposed sides of the tube assembly, disposed on the light guide trans a diffusion sheet, and a pair of upper frame, the upper frame edge may encompass the light guide plate fixed to each other and fitted to the mold frame.

The U.S. Patent No. mainly on the use of an L-shaped frame, the frame as the bearing unit and the support structure to combine other elements. However, due to the L-shaped frame, thus fitted to each other to achieve the purpose of fixing the overall structural design is complicated by the holding frame and the supporting frame.

Further, the structure disclosed in U.S. Patent No. required on the assembly from top to bottom, so the border will hinder the operator's line of sight while not checked at the time of assembling the lamp assembly line is displaced or damaged, must It is tested after assembly; resulting in decreased productivity. Further, since the U.S. Patent No. L-shaped case on the frame, in order to achieve the object of the stationary frame can reach a certain level of hardness must be secured to the entire assembly, so that the frame should also with a certain thickness and width, the liquid crystal display small visible area of ​​the panel, or relative to its width between the outer edge of the visible region of the outer contour of the liquid crystal display assembly is wider, and therefore more of not narrow.

Based on the above-described disadvantages of the prior art and to achieve a light, thin and stable structure, the structure of the present invention is liquid crystal display apparatus of the extensive studies, thereby completing the present invention.

[SUMMARY]

The main object of the present invention is to provide an easier assembly and more stable structure of the side frame of the backlight assembly.

Another object of the present invention to provide a more simplified configuration and easier manufacturing of the side frame of the backlight assembly. '

To achieve the above objects and other objects, the present invention provides a backlight assembly the side frame, which frame comprises a bearing unit, a reflecting plate and a stacked assembly composed of the stacked light guide plate; an optical film disposed on the stack assembly; provided corresponding to said stacking assembly side guide plate lamp assembly; and having a recess for receiving the lamp assembly and having a side frame fixing means for fixing said stacking assembly, and to fix the stack of the optical assembly diaphragm backlight assembly is formed.

According to the above object, the present invention further provides a method of assembling the backlight assembly of the side frame, comprising the steps of: a reflective plate disposed on a surface of a fitting element of the bearing unit frame; and a light guide plate disposed on the reflection plate; the lamp assembly disposed in the light guide plate side form a stacked assembly; then each have a groove receiving the lamp assembly and each having a frame for fixing the side of the stack assembly into the stack assembly corresponding to the lamp assembly by at fixing means fixing the entire stack assembly; last at least one optical film disposed on the light guide plate and the side frame of the backlight assembly is completed.

According to the above object, the present invention further provides a method of assembling the backlight assembly of the side frame, comprising the steps of: supporting a reflecting plate disposed in a fitting member on a surface of the holding frame; and a light guide plate disposed on the reflection plate form a stack; bulb assembly will be embedded in a side frame having a recess for receiving the lamp assembly and having a fixing means for fixing the stacked assembly; subsequently inserted into the frame by using the side of the stack assembly by fixing means fixing the entire stack assembly; last at least one optical film disposed on the light guide plate in a backlight assembly is completed.

[BRIEF DESCRIPTION

The backlight assembly of FIG. 1 is a prior art bearing unit on the frame and an exploded view of the frame; an exploded view of a side frame of the backlight assembly in FIG. 2 of the present invention;

FIG 3 is a schematic side frame a particular embodiment of the backlight assembly provided fixing means (referred to in this element fitted drawings) of the present invention;

Another specific example of a schematic view of the side frame is provided in the backlight assembly fixture (referred to in this element fitted in the drawings) of the present invention, FIG. 4; 'and

Architecture side sectional view of the frame of the backlight assembly in FIG. 5 of the present invention.

【detailed description】

The backlight assembly according to the present invention, the side frame from the side designed to be assembled, thus may simultaneously examine whether fixed or damage the tube, and the production yield can be improved when assembled. Since the side frame and having a groove structure is designed to be made thinner even when a state can provide sufficient securing means, which can improve the range of the visible region of the liquid crystal panel.

The backlight assembly according to the present invention, the side frames may be provided in the form of more robust than prior art assembly structure and the required small lateral frame die Yijiao prior art, so when the injection molding temperature and injection speed easier control Yijiao easily saturated, resulting in poor manufacturing low manufacturing cost can be further reduced.

In addition, the backlight assembly of the present invention, since the stacked assembly of a fixing frame can accommodate the lamp assembly side groove, the holding force by the fitting groove fastening means, may be more securely combining the entire backlight assembly.

The backlight assembly of apparatus-side fixing frame according to the present invention may be referred to in the elastic holding force for the side frame member or may be chimeric. When the time of the fixing means such as grooves and pits with a hook or the like is fitted bump element, the supporting surface of the holding frame corresponding to the other side frame member is provided with a further fitting elements serve for fitting the bearing unit is fixed to the frame side frame.

The above object and other objects of the present invention by the following preferred embodiments with specific details become more apparent from the accompanying drawings.

Referring now to Figure 2, Figure 2 an exploded view of a side frame of the present invention, a backlight assembly, wherein the hook securing means in the form of instructions on the side of the frame. The side frame assembly of the backlight system of the present invention supported by the support frame 1, a reflection plate 2, the light guide plate 3, the optical film 4, and the lamp assembly 5 housed in the lamp assembly having a recess and having a fixing means 5 (FIG. 2 fitting element 61) of the side frame 6 is composed. The support frame 1 supported on each of two sides of symmetry perpendicular to the bottom surface having a side wall 11, both ends of each of the sidewall 12 is provided with a recess for the electric wires 51 disposed through the tube assembly of the bearing unit and the bottom surface of the frame 1 near the sidewall 11 It is provided at each of the one or more fitting elements 13 (see Figure 3, recessed groove shaped fitting member at which time the fixing means is a hook engageable with the card 13 each); this side corresponding to the side frame 6 fitting holding portion supporting member 13 of the frame 1 and provided with a plurality of fitting elements or serve for the bearing unit 61 is fitted and fixed frame.

Backlight side frame combination assembly of the invention, first, the reflecting plate 2 is disposed on the support frame 1 supported, the light guide plate 3 is then disposed on the reflection plate 2, the tube assembly 5 is then disposed on each of both sides of the light guide plate 3 after receiving the lamp assembly having the recess 5 and has a side frame member 61 is fitted to the groove 6 toward the lamp assembly 5 and the lamp assembly while accommodating the fitting member 61 fitted with holding frame 1 is supported element 13 fitted to each other and fixed to the holder supporting frame 1, a reflection plate 2, the light guide plate 3 and the lamp assembly 5, and finally the optical film 4 is placed on the light guide plate 3, the side frames to complete a backlight assembly of the present invention.

In the above, the lamp assembly 5 also introduced into the recess of the side frame 6 and then using the fitting member 61 fitted with the bearing unit 13 of the frame member fitted to each other and fixed to the holder supporting frame 1, a reflection plate 2 the light guide plate 3 and the lamp assembly 5, and finally the optical film 4 is placed on the light guide plate 3, the side frames to complete a backlight assembly of the present invention.

Next see Figure 3, the side frame of the backlight assembly, and a specific example of the frame-side supporting frame member holding fitting a schematic view of the set 3 of the present invention, wherein the side frame member 6 is fitted into a hook 61 form, holding and supporting frame member 1 is fitted into a concave groove 13 form fitting manner by hook and fixed to the side frame assembly of a backlight assembly of the present invention. However, the present invention, the frame-side fitting member 616 may also be in the form of grooves, when the fitting element bearing unit 13 is compared with the frame 1 in the form of a hook.

4 a schematic view of another embodiment of FIG fitting side frame member provided in the backlight assembly of the present invention, a bump, wherein the side frame member 6 is fitted into a pit 61, and the bearing unit 13 is fitted to a frame element , by fitting the convex fixing point manner and the side frame assembly of the present invention is a backlight assembly. Similarly, the fitting member 13 may also be a point of the concave fitting member 61, compared with a bump. In other words, the present invention is fitted member 13 and 61 is not limited in any form, as long as each other can be fixed by fitting.

Backlight side frame assembly of the present invention, having a side frame may be U- or C- type configuration type like recess accommodating the lamp assembly.

Backlight side frame assembly of the present invention, when the fixing means is fitted elements, the number of the side frame and bearing unit fitted on the frame elements are provided is not particularly limited, may be one or more, can be achieved as long as the fixed The purpose can be.

In the present invention the side frame and the supporting material holding frame is not any limitation, it may be a metal material or other non-metallic materials, as long as the side frame was prepared and the bearing unit frame may be used in the present invention without affecting the desired properties of the present invention can be.

Backlight side frame assembly of the present invention, while the elastic side frames prepared to be fitted and fixed to the side frame assembly of a backlight assembly according to the present invention without using any fitting element may be made using a material having elastic side frame.

Finally, see Figure 5. FIG 5 is a sectional view of a side frame architecture of the backlight assembly of the present invention is a combination of the liquid crystal panel; wherein the bearing unit is a frame 1; element 13 is fitted (i.e. fixation means); a reflective plate 2; 3 is a light guide member; 4 an optical film; tube assembly 5; 6 is a side frame; fitting member 61 (i.e. fixation means); and a liquid crystal display panel 7.

Lamp assembly of the present invention is used is well known in the art by those who are kept informed, said tube assembly having a generally globe and an outer tube, within the outer globe is coated with a reflective coating and be reflected emitted from the light source lamp increase the brightness. However, the present invention is not limited to what the lamp assembly, as long as the light source can be provided. Further, the side frame assembly of the present invention, the backlight lamps number of components may be one or more, generally in an amount of two opposite sides of the light guide plate is divided over a light source provided to serve.

Further, the side frame of the backlight assembly of the present invention, the side frames may be one or two or more, preferably at least to fix the two opposite sides of the stacked assembly.

The backlight assembly of the present invention refers to optical films referred to in the optical film for a liquid crystal display is generally used, typically comprising, adding film and film sets. However, the present invention is not limited to such membrane as long as those can be used for a liquid crystal display.

Further, the present invention is referred to in the backlight assembly of the elements such as the light guide plate and the reflection plate are technical field of the present invention is kept informed of the element, whereby omitted herein.

By the above-described specific preferred embodiments of the present invention and the accompanying drawings be described in detail, but the specific embodiment disclosed merely to illustrate the invention, not to limit the scope of the invention. Where variations made within the spirit and scope of the present invention, belong to the scope of the present invention is improved.

No simple explanation [Figure]

1 supporting (fixing means) reflecting plate holding member 13 is fitted in the light guiding frame 3

The optical tube assembly of membrane 5

Fitting the side frame member 61 (fixing means) liquid crystal display panel

Claims

Rights request
A backlight assembly, comprising - a support frame supporting a stacked assembly composed of a reflective plate and a light guide plate stack; an optical film disposed on the stack assembly;
Provided corresponding to said stacking assembly side guide plate lamp assembly; and a side frame having a recess for accommodating the fastening means and the lamp assembly having fixing the stacked assembly;
Wherein the side frames of the stacked assembly is fixed by the fixing means and the optical film is formed with the backlight assembly.
The backlight assembly as claimed in claim 1, wherein: said side frame having a U- type configuration.
The backlight assembly according to claim 1, wherein: said side frame has a C- type configuration.
The backlight assembly as claimed in claim 1, wherein: the fixing means holding force of the side frames for inherent side frame.
The backlight assembly according to claim 1, wherein: the fixing means is fitted into the side frame element.
The backlight assembly of claim 5, wherein: the fitting is a hook element and the respective grooves.
The backlight assembly of claim 5, wherein: the fitting element are each bumps and pits.
The backlight assembly of claim 5, wherein: the fitting is more than one element.
9. The backlight assembly of claim 1, wherein: the lamp assembly of at least two points disposed on opposite sides of the light guide plate.
10. The backlight assembly according to claim 1, characterized in that: the side frame and at least two points disposed on opposite sides of the stack assembly having the lamp assembly.
11. A method of assembling a backlight assembly, comprising the steps of:
The reflector plate is disposed on a holding frame supported;
To a light guide plate disposed on the reflecting plate;
The lamp assembly is provided which is formed on the light guide plate side of the stacked assembly; then
Fixing means having a side frame and having a groove receiving the lamp assembly is inserted into the stacked assembly corresponding to the assembly of the lamp and with which fixing means fixing the entire stack assembly; then
At least one optical film disposed on the light guide plate and the side frame of the backlight assembly is completed.
12. - The method of assembling a backlight assembly species, comprising the following steps - the reflector plate is disposed on a holding frame supported;
A light guide plate disposed on the reflection plate of the assembly to form a stack;
The lamp assembly is embedded in the side frame and having a fixing device having a recess accommodating the lamp assembly; then
The use of the side frame is inserted into the stacked assembly by the fixing means for fixing the entire stack assembly; then
At least one optical film disposed on the light guide plate in a backlight assembly is completed.
13. The method of claim 11 or claim 12, wherein: said side frame having a U- type configuration.
14. The method of claim 11 or claim 12, wherein: said side frame has a C- type configuration.
15. The method of claim 11 or claim 12, wherein: the fixing means holding force of the side frames for inherent side frame.
16. The method of claim 11 or claim 12, wherein: the fixing means is fitted into the side frame element.
17. The method according to claim 16, wherein: each of the fitting element may be a hook and grooves.
18. The method according to claim 16, wherein: each of the fitting element may be bumps and pits.
19. The method of claim 11 or claim 12, wherein: the fitting is more than one element.
20. The method of claim 11 or claim 12, wherein: the lamp assembly of at least two points disposed on opposite sides of the light guide plate.
21. The method of claim 11 or claim 12, wherein: the side frame and at least two points disposed on opposite sides of the stack assembly having the lamp assembly.
PCT/CN2004/000263 2004-03-26 2004-03-26 Backlight assembly with side frame and assembly method thereof WO2005093499A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/000263 WO2005093499A1 (en) 2004-03-26 2004-03-26 Backlight assembly with side frame and assembly method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/000263 WO2005093499A1 (en) 2004-03-26 2004-03-26 Backlight assembly with side frame and assembly method thereof

Publications (1)

Publication Number Publication Date
WO2005093499A1 true true WO2005093499A1 (en) 2005-10-06

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ID=35056336

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2004/000263 WO2005093499A1 (en) 2004-03-26 2004-03-26 Backlight assembly with side frame and assembly method thereof

Country Status (1)

Country Link
WO (1) WO2005093499A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1246636A (en) * 1998-08-27 2000-03-08 精工爱普生株式会社 Bias light unit and electronic device
US20010006459A1 (en) * 1999-12-24 2001-07-05 Daimon Okumura Backlight unit for use in planar display
US20020093811A1 (en) * 2001-01-16 2002-07-18 Au Optronics Corp. Frame for fixing light guide plate and backlight unit thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1246636A (en) * 1998-08-27 2000-03-08 精工爱普生株式会社 Bias light unit and electronic device
US20010006459A1 (en) * 1999-12-24 2001-07-05 Daimon Okumura Backlight unit for use in planar display
US20020093811A1 (en) * 2001-01-16 2002-07-18 Au Optronics Corp. Frame for fixing light guide plate and backlight unit thereof

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