TW552440B - Fixing structure of optical film plate assembly of the backlight module - Google Patents

Abstract

The present invention is related to the fixing structure of the optical film plate assembly of the backlight module, which includes a liquid crystal optical valve and an illumination mechanism for illuminating the liquid crystal optical valve. The invention is featured with having the capability of using a non-adhesive fixing mechanism to fix at least on thin film located in between the substrate and the light source. In addition, the reliability and the reusability of the thin film are not affected due to high temperature and high heat process in the following test procedure.

Description

552440 V. Description of the invention α) [Field of the invention] The present invention provides a simple, fast and effective fixing structure of the optical film group of the backlight module, which is mainly used for fixing the optical film group of the backlight module, which can solve the current problem. The most popular applications in the optoelectronic industry, such as liquid crystal displays, rework of the multilayer optical film two or more times, and there is no problem of residual adhesive, and the multilayer optical film will not stick with it. The problem of gel deterioration due to heat. [Background of the Invention] The conventional structure is a fixed multilayer optical film, which is usually fixed with double-sided tape between the multilayer optical films. Therefore, it has the following four disadvantages: 1. Waving issue: The double-sided tape attached between the multilayer optical films is fixed. Under the high heat and high pressure conditions in the test procedure, the optical film will be deteriorated with the heat of the adhesive, and a wave shape will be generated locally. The double-sided tape attached between the multilayer optical films is fixed. Under the high heat and high pressure conditions in the test procedure, the optical film itself will be deformed, resulting in unequal degrees of displacement. The double-sided tape pasted between the diaphragms is fixed and difficult to remove, so there will be problems of residual glue, which will increase the proportion of unqualified finished products and increase production costs. Fourth, no rework: The double-sided tape attached between the multilayer optical films is fixed. Under high heat and pressure conditions in the test procedure, the optical film will be deteriorated with the heat of the adhesive, so it is not conducive to two or more reprocessing ( rework), five, the optical film will have a "Newton's ring" phenomenon, mainly because when the light is transmitted through the optical film, the optical film surface

552440 5. Description of the invention (2) It is not very uniform everywhere, so the light will be improperly refracted, resulting in a "Newton ring" situation. In view of this, the inventor of the present case proposes a simple, fast and effective backlight film optical film fixing structure, whose main function is to fix the backlight optical film group. The unique design of this invention can solve the current hottest problems. It is applied in the photoelectric industry, such as liquid crystal displays, etc., and the multilayer optical film is reworked two or more times, and there is no problem of residual adhesive, and the multilayer optical film does not have adhesive. Deterioration by heat. [Summary of the invention] The present invention proposes a simple, fast and effective backlight module optical film fixing structure, which is mainly used for fixing the backlight optical film group, which can solve the current most popular applications in the optoelectronic industry, such as For liquid crystal displays, etc., the multilayer optical film is reworked two or more times, and there is no problem of adhesive residue. The multilayer optical film does not have the problem of changing j with the heat of the adhesive. The main purpose is threefold: 1. The present invention solves the waving issue of multilayer optical films: Because the double-sided adhesive tape fixed between the multilayer optical films is fixed, the high temperature and high pressure conditions in the test program will cause the optical film to follow The adhesive is deteriorated due to heat, and a wave shape is generated locally. With the optical film fixing structure of the backlight module of the present invention, since no adhesive material is used, the wave issue of the multilayer optical film does not occur. Second, the present invention solves the problem of film displacement and deformation of a multilayer optical film

552440 5. Description of the invention (3): The double-sided adhesive tape fixed between the multilayer optical diaphragms will be deformed under high heat and high pressure conditions in the test program, which will cause unequal degrees of displacement. With the optical film fixing structure of the backlight module of the present invention, since no adhesive material is used, the problem of film displacement and deformation of the multilayer optical film does not occur. Third, the present invention solves the problem that the multilayer optical film cannot be reworked: the double-sided adhesive tape fixed between the multilayer optical films is fixed, and the high temperature and high pressure conditions in the test program will make the optical film The adhesive deteriorates with heat, so it is not conducive to rework of two or more times. With the optical film fixing structure of the backlight module of the present invention, the multilayer optical film can be easily used because no adhesive material is used. Rework is performed two or more times. [Detailed description of the invention] The first embodiment The first figure is a diagram of a fixed structure of an optical film of a backlight module according to the first embodiment of the present invention, which mainly includes the following components in this article: a liquid crystal light valve (not shown in the first (A picture), a lighting mechanism 1 for illuminating a liquid crystal light valve, and the lighting mechanism 1 itself has a planar light source (p 1 a η nar light source) and a substrate (not shown in the first figure) ), The substrate (not shown in the first picture) is placed facing the light source, and has a multi-layer optical films (2, 3, 4, 5) between the substrate (not shown in the first picture) And the light source for selective reflection, part of the light emitted by the plane light source, without affecting the color

552440 π Description of the invention (4) ----- filtering, so that the light emitted from the light source, the range of divergence +, thin film (mul t i-layer optical fi lms) 2, q, yi The system can be divided into a plurality of blocks, and the transmission degree of each block is different. The distribution of the plurality of blocks, and the light emitted by the > achieve a uniform brightness distribution. ', The light source is more clearly pointed out here, in the first embodiment of the present invention, the north optical film fixing structure is characterized by being able to fix at least one film 2 with a non-adhesive Ke Yueying group structure, a multilayer optical film (mul疋 机 ο fixed picture (ptical films) 2, 3, 4, 5 according to the actual application, the position of the film 2, 3, 4, 5 is between the substrate (not shown in the second) and the light source, and in the subsequent The test procedure will not affect the reliability of the film and the reusability of the film because of the "two-up heat". J Reusability fixing mechanism, there are no restrictions on the number and material of itself, But at least 2-a fixed trip 11 to achieve a fixed effect, and the solid S clip two can be two fixed pieces i 1 0, 1 1 2 and the support 1 1 4, 1 i 6 combined. ~ In this design, in order to have a better fixing effect, fix the ^ machine broadcast, * [夂 includes: at least one fixing hole 118, the fixing hole 118 is originally to penetrate the good 暝 (fllm) 2, 3, 4 The channel of 5 is used for the desired fixing effect, so that the fixing clip 丨 丨 can penetrate the film 3, 4, 5 to complete the function of fixing the film 2. 0,4,5 The first embodiment described above in this article is combined or fixed. Shiba does not use adhesive materials as auxiliary or media, so this feature is also = ^

552440 V. Description of the invention (5) The attractive contribution of the invention. Second Embodiment The second figure is a diagram of a fixed structure of an optical film of a backlight module according to the second embodiment of the present invention, which mainly includes the following components of the article: a liquid crystal light valve (not shown in the second figure), a The lighting mechanism 1 is used to illuminate the liquid crystal light valve, and the lighting mechanism 1 itself has a planar light source (p 1 annar light source) (not shown in the second figure) and a substrate 10, and the substrate 10 itself It is placed facing the light source and has multi-layer optics; 4 films (multi-layer optical films) 2, 3, 4 '5 are interposed between the substrate 10 and the light source' for selective reflection 'part is emitted by the planar light source Light, and does not affect the color tear light, the divergence range is small, and multi-layer optical film (multi_layer optical filmS) 2, 3, 4, 5 can be divided into a plurality of blocks and the transmission between each block (transmittance) The distribution of different complex mothers is to achieve a uniform brightness distribution of the light emitted by the light source. ° ^ means here more clearly * 'the second embodiment of the present invention is less m-a film 2, multi optical film (multi ^ 疋 optical films) 2, 3, 4' 5 the number is determined according to the actual library a = r The position of the thin film 2, 3, 4, 5 is located on the substrate, which is the material that will be tested in the subsequent tests. * It will be high because of the high temperature; Ϊ ^, and the reliability of 2, 3, 4, 5 (reliabimy) and, Can = to film (reusability) 0, usability

552440

In the L1 疋 stack structure, there is no limit to the number and material of the body, but q — a fixed pin body 12 in order to achieve the structure of the detailed structure, including: — a mortise lock 120, which is fixed by the body The lock body U can mainly pass through the membranes 2, 3, 4, 5. In addition, the body seat 122, the fixing seat 122 and the pin 12 should be mutually equal to each other: a fixed film includes: a pin and a pin series to complete the main function of the film (fllm) 2, 3, 4, 5 As a dog shape, for better fixing effect, the fixing mechanism,

^ Less-fixing hole 124, the main purpose is to provide a hole that penetrates the diaphragm and also 3 ', 4'5, so that the fixing pin 12 penetrates the film (fH, 3, 4, 5). The combined or fixed way of the second embodiment introduced, & eight = using a viscous material as an auxiliary or medium, so this feature = = very attractive contribution of the second embodiment of the invention. The third figure is a structure diagram of the optical film fixing structure of the backlight module according to the third embodiment of the present invention, which mainly includes the following components in this article: a liquid crystal light valve (not shown in the third figure), a lighting mechanism 1, It is used to illuminate the liquid crystal light valve, and the lighting mechanism 1 itself has a planar light source and a substrate 10. The substrate 10 itself is placed facing the light source and has a multilayer optical film (mul ti —layer opt i cal fi lms) 2, 3, 4, 5 are between the substrate 10 and the light source, in order to selectively reflect, part of the light emitted by the plane light source, without affecting the color

552440 V. Description of the invention (7): And the multilayer optical system 5 can be separated to filter the light source, so that the light emitted from the light source, the divergence range ^ thin film (multi-layer optical fiims) 2, 3, cut into plural Each block has a different transmission degree (transmittance) with each other, and the light emitted from the plurality of blocks achieves a uniform brightness distribution. It is more clearly pointed out here that the third embodiment of the optical film fixing structure of the present invention is characterized in that it can fix at least one film 2 ′ multilayer optical film (1) using a backlight structure of the Befi ^ example. films) 2 '3,4,5, according to the actual value = U ~ layer, the position of the film 2,3,4,5 is located on the substrate 丨 〇2 = need to be determined in the subsequent test procedures, not because of high temperature High, between, and the reliability of 2, 3, 4, 5 (reliabili) can be heard to reusability », the reusability fixing mechanism, the number and material of itself is not limited, in A fixed pin body 12 in order to achieve a fixed effect, and solid = at least the detailed structure of the structure, including: a pin 12, the pin 12 and the W lock body 12, which can mainly penetrate the film (fi 1 m) 2, 3 , 4, 5. This f is a protrusion. The fixing bases 1 2 2 and the fixing bases 1 2 2 and the pin i 2 〇 should be located at each other =, and there is a function of fixing films 2, 3, 4, and 5. ~ 口 'in order to have a better fixing effect, the fixing mechanism, including: at least one fixing hole 124, the main purpose is to provide through the thin package (f 1 1 m) 2' 3, 4, 5 Hole this to make it easy to fix the pin body, film 2, 3, 4, 5. Sleep

552440 Five non-issued, description of the invention (8) _ The use of viscous materials as a supplementary 丄 Ming attractive contribution. "Or this medium" This feature is also the fourth picture of this film according to the present invention-the film holder fixing structure combined with the enlarged view of the number and material of the optical film body of the optical module is not limited to two "fixing mechanism book 9 in order to A fixed effect is achieved and there is at least one fixed lock body 12: a pin 120, a detailed structure of the pin 120 / ^ \ pin body M, including (film) 2, 3, 4, 5. To pass through the thin one 122 and the bolt 120, one needs to associate with each other, and the 'Yayou ^ a ^ fixed mount 122, which fixes 2, q, 4 Ra, and Ab 〇 mouths so that the fixed film (fi 1 m) is formed. «Female, In the fixed seat 122, in addition to the combination of the bolt 12 and the toilet, the auxiliary bolt 120a is combined with it. / 、、、、 口 口 片 固: Last name: 3: ^ this third embodiment, The :: of the optical film body of the backlight module is shown in the picture. In the fifth picture, it can be compared with the fixing mechanism. The pin is sub-λ-limited. The fixing mechanism includes: a pin 120, and Λ 5 is a protrusion that can pass through the film. (⑴ "") 2, 3, m mutual; d & yj 胄 ㈣ 座 fixed base 12 2, fixed base 12 2 and the plug lock m each other in order to complete Fixing film (fum) 2, 3, 4, Moon dagger. At the fixed temple, 4 J ^ pin 12〇a was combined with it. In addition to the pin 12G combined with it, there are auxiliary plugs only = "Exposure" and description M Cordyceps is the preferred embodiment of the present invention. The implementation of the invention is too limited. The implementation of the invention "everyone is familiar with the spirit of the invention" is within the scope of the following patent applications. ㉚

Page 11 552440 Brief description of the drawings [Simplified description of the drawings] The first diagram is a fixed structure diagram of the optical film of the backlight module according to the first embodiment of the present invention. The second figure is a fixed structural diagram of an optical film of a backlight module according to a second embodiment of the present invention. The third figure is a fixed structural diagram of an optical film of a backlight module according to a third embodiment of the present invention. The fourth figure is an enlarged view of a combination of a fixed structure of an optical film of a backlight module according to a third embodiment of the present invention. The fifth figure is a side view of a combination of a fixed structure of an optical film of a backlight module according to a third embodiment of the present invention. [Illustration of drawing number] 1 Zhaoming mechanism 10 Substrate 11 Fixing clip 110 Fixing piece 112 Fixing piece 114 Supporting body 116 Supporting body 118 Fixing hole

552440 Brief description of the drawing 12 Fixing pin body 120 Pin 12a Auxiliary pin 122 Fixing seat 124 Fixing hole

Page 13

Claims (1)

552440 6. Scope of patent application 1. The optical film fixing structure of the backlight module includes: a liquid crystal light valve; a lighting mechanism for illuminating the liquid crystal light valve, the lighting mechanism has a planar light source (plannar light source and a substrate, the substrate facing the light source, and having a multi-layer optical film between the substrate and the light source to selectively reflect a portion of the light emitted by the planar light source Light without affecting the color filter, so that the light emitted from the light source has a small divergence range, and the multi-layer optical films can be divided into a plurality of blocks, each block The transmission degree (transmi 11 ance) is different. The distribution of the plurality of blocks is to achieve a uniform brightness distribution of the light emitted by the light source. It is characterized in that the at least one film can be fixed by a non-adhesive fixing mechanism, the The thin film is interposed between the substrate and the light source, and in the subsequent test procedure, the reliability of the thin film is not affected by high temperature and heat (re 1 iabi 1 it y) and reusability. 2. The optical film fixing structure of the backlight module according to item 1 of the scope of patent application, wherein the fixing mechanism comprises: at least one fixing pin body. 3. The optical film fixing structure of the backlight module according to item 1 of the scope of patent application, wherein the fixing structure further comprises: at least one fixing hole, the fixing hole is for penetrating the film (fi 1 m) Hole, Page 14 552440 6. Scope of patent application for fixing pin body penetrating the film (f i 1 m). 4. The optical film fixing structure of the backlight module according to item 2 of the scope of the patent application, wherein the fixing pin body includes: a pin, a protrusion, which can penetrate the film (fi 1 m); and A fixing base is combined with the bolt to complete the function of fixing the film (fi 1 m), and the binding fixing system does not use adhesive material as an auxiliary or medium at all. 5. The optical film fixing structure of the backlight module according to item 1 of the scope of patent application, wherein the fixing mechanism includes: at least one fixing clip, which can be integrally formed or separated from the lighting mechanism . 6. The optical film fixing structure of the backlight module according to item 5 of the scope of the patent application, wherein the fixing clip can be a combination of two fixing pieces and a support. 7. The optical film fixing structure of the backlight module according to item 5 of the scope of patent application, wherein the fixing mechanism further comprises: at least one fixing hole, the fixing hole is for penetrating the film (fi 1 m) For the fixing clip to penetrate the film (fi 1 m). ν V ’