TWI790158B - Manufacturing and assembling method for front light plate of front light module and equipment thereof - Google Patents

Abstract

A manufacturing and assembling method of front light module and equipment is disclosed. The present invention uses the roller set to perform various processing on the plastic substrate. The optical microstructure is formed by pressing, and then optical adhesive is directly coated on the upper and lower surfaces of the substrate. Depending on the assembly requirements, the front light plate substrate with a plurality of consecutively arranged optical patterns can be formed by successively covering the upper and lower surface of the substrate with protective films through the roller set, or directly cut the substrate to form a front light plate, and then assemble the light source module and optical components through the optical adhesive on the upper surface to from a front light module. In this way, the present invention greatly improves the convenience of the manufacturing process, and adopts the subtractive engineering concept to save many manufacturing and assembling steps, so that the production line can maximize the manufacturing and assembling efficiency, and at the same time, it also reduces the production cost and improves the quality of products by simplifying the steps.

Description

Manufacturing and assembling method and equipment for front light module

The present invention is related to the field of optical plate manufacturing, in particular to a method for manufacturing and assembling a front optical module and its equipment.

Displays can be roughly divided into two types, one is a transmissive display and the other is a reflective display. Transmissive displays are common TVs, computers, mobile phone screens, etc. The main structure is to set a backlight module under the display panel as a light source to display images. The most common type of reflective display is the electronic paper product. The main structure is to use ambient light as the light source to reflect the ambient light projected onto the display panel to form a display image. In order to prevent the display quality of the reflective display from being affected when it is used in an environment with insufficient light, a front light module is usually installed on the front side of the display panel to properly provide light to the panel and maintain stable display quality.

The front light module generally has a front light plate and a point light source. The front light plate can guide the point light source and form a uniform surface light source, and the means of guiding the light mostly rely on various devices on the front light plate to destroy the total reflection of the light. structure is realized. At present, it can be seen that many related manufacturers have proposed technical solutions related to the structural development and design of the front optical module, in order to provide optical products that meet various light output and structural requirements.

The above-mentioned prior optical module structure development and design technologies are all about how to change the structure of the front light plate itself, the relative arrangement of the front light plate and other components, or add various accessories that can improve the performance of the front light module. For related The process and equipment are not discussed. Existing Frontlight Process Most of them are made by using relatively complicated processing procedures such as injection molding and cutting to form separate plates one by one, and then they must go through repeated packaging, disassembly, processing or assembly operations, and go through repeated steps one after another before they can be assembled. Forming the front optical module product, in addition to consuming a lot of manufacturing time and cost, it is also easy to greatly affect the quality of the optical product because of such steps.

In this regard, the inventors have gathered years of rich technical experience in related industries, conceived and proposed a method for manufacturing and assembling front light modules and its equipment, in order to improve the complicated procedures of the existing front light plate manufacturing process and equipment, to provide It is simpler, more efficient, less time-cost and more advanced optical product manufacturing process and equipment technology.

One purpose of the present invention is to provide a method of manufacturing and assembling a front light module and its equipment, which greatly improves the convenience of manufacturing and reduces the cost of manufacturing time through subtractive engineering, while also improving the quality and yield of optical products .

In order to achieve the above purpose, the present invention discloses a method for manufacturing a front light panel of a front light module in one embodiment, which is used for continuous implementation in a production line, comprising the following steps: unrolling a plastic roll to form a base material; using a press The roller set presses on the upper surface and/or the lower surface of the base material to form a plurality of optical microstructures; a glue-coated roller set is used to coat an optical glue on the upper surface and the lower surface of the base material; and a film-coated roller set is used A protective film is covered on the upper surface and the lower surface of the base material to form a front light plate base material with a plurality of continuously arranged optical patterns. Accordingly, the use of continuous processing steps can reduce the impact on product quality of optical plates due to transfer to workstations of different production lines, effectively save manufacturing time and improve processing convenience.

Based on the same concept, in another embodiment, the present invention discloses a front light module manufacturing equipment, including: a feeding roller set, used to unroll a plastic roll to form a substrate; A stamping roller set, set on one side of the feeding roller set, for embossing on the upper surface and/or the lower surface of the substrate to form multiple optical microstructures; a rubber-coated roller set, set on the stamping roller set One side is used to coat an optical adhesive on the upper surface and the lower surface of the base material; and a film-coating roller set is arranged on one side of the glue-coating roller set, and is used to coat a protective film on the base material The upper surface and the lower surface form a front light plate substrate with a plurality of continuous optical patterns. Accordingly, through the roller sets arranged in sequence, the optical plate can be produced quickly and conveniently while maintaining an excellent product yield.

The present invention also discloses a method for manufacturing and assembling front light modules in one embodiment, which is used for continuous execution on a production line, including the following steps: unrolling a plastic roll to form a base material; using a press roller set on the The upper surface and/or the lower surface of the substrate are pressed to form a plurality of optical microstructures; an optical glue is coated on the upper surface and the lower surface of the substrate by using a glue-coated roller group to form an optical microstructure with a plurality of continuous settings. Patterned front light plate base material; cutting the front light plate base material to form a plurality of front light plates; directly assembling a light source module on each of the front light plates, wherein the light source module has a circuit substrate and a plurality of LEDs, and the LEDs are arranged at intervals on the circuit substrate, and the circuit substrate is fixed through the optical glue on the upper surface of the front light plate, so that the LEDs are located on the side of the front light plate; and an optical component is covered on each of the front light plates, and the optical component is The optical adhesive on the upper surface of the front light plate is pasted on the upper surface of the front light plate, and then assembled to form a front light module. Based on this, the system provides a one-stop front light module manufacturing solution, so that the processes from making the front light plate to assembling the front light module are all carried out on the same production line, and the processing convenience is greatly improved by the method of subtraction engineering. Effectively omit manufacturing steps and achieve better product yield.

Based on the example of the manufacturing and assembling method mentioned above, in one embodiment, it is mentioned that the manufacturing and assembling method further includes performing a lighting test on each of the front light modules, and passing each of the front light modules that have passed the lighting test through the The optical adhesive on the lower surface of the light board is pasted on a reflective display panel, and the measured Integrating the trial and final assembly process into the manufacturing assembly method can further reduce the time spent on the moving steps and effectively improve the output efficiency.

In addition, in order to achieve the effect of optimizing the light output state of the front light module or protecting the front light plate, in another embodiment, the optical component is disclosed as an anti-glare film or a glass panel.

In addition, considering the requirements of thinning and easy adjustment of the front optical module, in another embodiment, the circuit substrate is disclosed as a flexible printed circuit board.

Based on the same concept, in yet another embodiment, the present invention discloses a front light module manufacturing and assembling equipment, including: a feeding roller set, used to unroll a plastic roll to form a substrate; a pressing roller set , set on one side of the feeding roller set, for embossing on the upper surface and/or the lower surface of the substrate to form a plurality of optical microstructures; a rubber-coated roller set, set on one side of the pressing roller set Coating an optical glue on the upper surface and the lower surface of the base material to form a front light plate base material with a plurality of continuously arranged optical patterns; a cutting device is arranged on one side of the glue-coated roller group for cutting The base material of the front light plate forms a plurality of front light plates; a first assembly device is arranged on one side of the cutting device for directly assembling a light source module on each of the front light plates, wherein the light source module has a circuit board and A plurality of LEDs, these LEDs are arranged on the circuit substrate at intervals, and the circuit substrate is fixed through the optical glue on the upper surface of the front light plate, so that the LEDs are located on the side of the front light plate; and a second assembly device , arranged on one side of the first assembling device, for covering an optical component on each of the front light plates, the optical component is glued to the upper surface of the front light plate through the optical glue on the upper surface of the front light plate, and then Assembled to form a front light module. Accordingly, through the sequentially designed roller sets and assembly devices, the optical plate can be manufactured without interruption from the beginning to the end of assembly, and through the aforementioned process design, many complicated steps can be omitted and through subtractive engineering The convenience of processing is improved, and the product quality is relatively improved.

As an example of the previous manufacturing and assembling equipment, in one embodiment, it is disclosed that the manufacturing and assembling equipment further includes a testing device and a third assembling device, and the testing device is set on one side of the second assembling device to test each The front light module is subjected to a lighting test; the third assembly device is arranged on one side of the test device, and is used to stick each of the front light modules that have passed the lighting test through the optical glue located on the lower surface of the front light plate On a reflective display panel, this is to further combine the assembly of the front light module into the same production line. At the same time, based on the technical characteristics of the manufacturing and assembly equipment, it can also effectively omit the process again, making the advantages of processing convenience more Expanded to the assembly of front optical modules and other components.

In the next embodiment, it is disclosed that the rubber-covered roller set includes two films and two power rollers, the two power rollers are installed in the hollow area of the two films, and the two power rollers and the two films are separately arranged on the base The upper side and the lower side of the material, when the two power rollers rotate, the two films are driven to make the optical adhesive cover the upper surface and the lower surface of the substrate, so that the optical adhesive can be attached more quickly and stably on the upper and lower surfaces of the substrate.

In addition, in yet another embodiment, when the stamping roller set is used to stamp the upper or lower surface of the substrate to form the optical microstructures, the stamping roller set includes a stamping roller and a supporting roller , the imprinting roller is arranged on the upper side or the lower side of the substrate, and the support roller is opposite to the imprinting roller, so that when the imprinting roller is imprinted on the substrate to form the optical microstructures, the opposite side provides a supporting force , through this structural setting, it is easier to print on the substrate to form a precise optical microstructure.

To sum up, the manufacturing and assembling method and equipment of the optical module before the present invention achieve the effects of omitting many processing steps and reducing the manufacturing time through the subtractive engineering of continuous processing in the production line, greatly improving the convenience of processing At the same time, it also allows optical products to have excellent product quality due to fewer processes, avoiding too many steps to make optical products adhere to dust particles or suffer damage affect the condition of the product. Furthermore, the present invention also proposes many additional detailed technical features, as described in the above paragraphs.

1:Front plate manufacturing equipment

10: Feed roller set

11: Imprint roller set

111:Printing roller

112: support roller

12: Rubber-covered roller set

121: film

122: Power Roller

13:Laminated roller set

2: plastic coil

20: Substrate

201:Optical Microstructure

202: Front light plate substrate

203: Front light plate base material

3: Optical glue

4: Protective film

5: Manufacture and assembly equipment

50: Feed roller set

51: Imprint roller set

511:Printing roller

512: support roller

52: Rubber-covered roller set

521: film

522: Power Roller

53: Cutting device

54: The first assembly device

55: The second assembly device

56: Test device

57: The third assembly device

6: Front light plate

7: Light source module

70: circuit substrate

71:LED

8: Optics

9: Front light module

A: Reflective display panel

S10~S13: Steps

S20~S27: steps

FIG. 1 is a schematic diagram of an optical board manufacturing equipment before an optical module assembly according to an embodiment of the present invention.

FIG. 2 is a flow chart of steps in a method for manufacturing an optical panel before an optical module according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of manufacturing and assembling equipment for optical modules before an embodiment of the present invention.

Fig. 4 is a flow chart of the manufacturing and assembling method of the optical module before an embodiment of the present invention.

Fig. 5 is a schematic diagram comparing the manufacturing and assembling process of the optical module before an embodiment of the present invention with the prior art process.

As mentioned above, in view of the manufacturing and assembly methods and equipment of the front light board and its modules, there are still lacks of processes such as being too complicated, repeating packaging, unpacking, and then processing or assembling, resulting in the front light board and its modules being in the process of processing. Convenience and time efficiency both have their deficiencies, and the quality and yield requirements of optical products are even more important, because light is very sensitive, as long as the product is slightly damaged or dirty, it will be greatly reduced Affect the state of subsequent use, and the above-mentioned cumbersome steps are quite easy to affect the quality of optical products. In order to solve these problems and provide a more convenient solution for the manufacture and assembly of the front light board and its module, the inventor proposed a method and equipment for the front light board manufacturing and assembly of the front light module through continuous conception and adjustment, and through subtractive engineering Technical means can greatly improve the process efficiency and the output yield of optical products. The following is a description of the front-optical board manufacturing method and equipment for the front-optical module.

Please refer to Figure 1, which is a schematic diagram of the light panel manufacturing equipment before an embodiment of the present invention, wherein the structural appearance, scales, scales, etc. shown in the figure are all helpful to illustrate the structural features of the present invention, and do not represent the actual structure The status is described first. The optical board manufacturing equipment 1 before the optical module assembly of the present invention includes a feeding roller set 10 , a pressing roller set 11 , a rubber-coating roller set 12 and a film-coating roller set 13 .

The feeding roller set 10 is used to unroll a plastic roll 2 to form a base material 20. More specifically, the feeding roller set 10 can have a plurality of rollers with different functions, such as for The rest of the film materials on the roller are torn off, or the rollers are used to flatten the surface of the substrate 20, so that the rolled plastic coil 2 can be unfolded and formed into a substrate 20 state for subsequent processing.

The imprinting roller set 11 is arranged on one side of the feeding roller set 10, and is used for imprinting on the upper surface and/or the lower surface of the substrate 20 to form a plurality of optical microstructures 201. The corresponding grooves or ribbed rollers on the optical microstructure 201 on the surface of 20 are convenient for rotary printing to form required optical patterns. Wherein, when the stamping roller set 11 intends to print the optical microstructure 201 on the upper surface and the lower surface of the substrate 20, the stamping roller set 11 can include two oppositely arranged stamping rollers; When the upper surface or the lower surface of the material 20 is stamped to form the optical microstructure 201, the stamping roller set 11 can include a stamping roller 111 and a supporting roller 112, and the stamping roller is arranged on the upper side or the lower side of the substrate 20, and the supporting roller 112 is connected with the stamping roller 112. The rollers 111 are disposed opposite to each other, so that when the pressing rollers 111 press on the substrate 20 to form the optical microstructure 201 , the opposite sides provide supporting force. In this embodiment, it is taken as an example that the pressing roller 111 is arranged on the upper side of the substrate 20 to form the optical microstructure 201 on the upper surface of the substrate 20, and the supporting roller 112 is arranged on the lower side of the substrate 20 corresponding to the pressing roller 111. .

The glue-covered roller set 12 is arranged on one side of the pressing roller set 11, and is used to coat an optical glue 3 on the upper surface and the lower surface of the substrate 20, and the optical glue 3 can be applied quickly and smoothly through the glue-coated roller set 12 Distributed on the upper surface and the lower surface of the substrate 20, and adopt the method of coating the optical glue 3 with a roller for the entire substrate 20, except In addition to not requiring multiple glue coating processes, it can also avoid the generation of air bubbles. Wherein, in specific implementation, the rubber-coated roller set 12 may include a roller and a glue spray nozzle, and the roller is attached to the optical glue 3 by spraying glue and then coated on the surface of the substrate 20, and the glue-coated roller set 12 may also include two film rolls. 121 and two power rollers 122, the power roller 122 is set in the hollow area of the film 121, and the power roller 122 and the film 121 are separately arranged on the upper and lower sides of the substrate 20, so that when the power roller 122 rotates, the film 121 is driven to make The optical adhesive 3 is pasted on the upper surface and the lower surface of the substrate 20 .

The film-coating roller group 13 is arranged on one side of the rubber-coating roller group 12, and is used to cover a protective film 4 on the upper surface and the lower surface of the substrate 20, so as to form a front light plate substrate 202 with a plurality of continuously arranged optical patterns. . Among them, the film-covering roller set 13 can also be similar to the setting of the rubber-covering roller set 12 and has two film rolls and two rollers, and the film rolls are sleeved on the rollers to cover the protective film 4 with the rotation of the rollers. The upper surface and the lower surface of the substrate 20. Accordingly, through the continuous manufacturing process of the front light panel manufacturing equipment 1 using the roller set, the effect of improving the convenience of processing can be achieved by subtractive engineering. In the manufacture of the front light panel, there is no need to go through complicated preparation of glue and materials. In the glue coating process, the optical glue 3 can be coated on the base material 20 . Then, in order to temporarily protect the substrate 20 embossed with the optical microstructure 201, the protective film 4 is pasted on the upper and lower surfaces of the substrate 20 through the film coating roller group 13 to form a frontlight substrate with a plurality of continuously arranged optical patterns. 202. In this way, the effect of temporary storage protection can be achieved.

Please continue to refer to FIG. 2 , which is a flow chart of the optical panel manufacturing method before the optical module according to an embodiment of the present invention, and please also refer to FIG. 1 . The method for manufacturing the front light plate is used for continuous execution on a production line, and includes the following steps. First, a plastic roll 2 is unrolled to form a substrate 20 (step S10), and then a press roller set 11 is used to place the substrate on the substrate. The upper surface and/or the lower surface of the substrate 20 are pressed to form a plurality of optical microstructures 201 (step S11), and then an optical glue 3 is directly coated on the upper surface and the lower surface of the substrate 20 by using a glue-covering roller set 12 (step S11). S12), finally directly utilize a coating roller group 13 to cover a protection The protective film 4 is formed on the upper surface and the lower surface of the base material 20 to form a front light plate base material 202 with a plurality of continuously arranged optical patterns (step S13 ). Accordingly, through the aforementioned continuous process, the optical adhesive 3 can be coated on the upper surface and the lower surface of the substrate 20 after the substrate 20 has just been stamped to form the optical microstructure 201 . Before each piece is separated, optical glue is applied after the optical board. This process is not only different from the existing processing steps, but also improves the efficiency of the process. The gluing operation is carried out on the long continuous substrate 20 through the gluing roller group 12. Compared with applying optical glue to each separated plate, there is no need to consider the distribution position of the plate or to avoid the process of gluing during the gluing process. In addition to adding a positioning device due to the middle offset, the optical adhesive 3 can be evenly and quickly applied to the upper and lower surfaces of the substrate 20 . Then, in view of the fact that the base material after gluing may not perform subsequent assembly or other operations immediately, after the optical glue 3 is coated on the upper surface and the lower surface of the base material 20, the protective film 4 is pasted to avoid the optical glue 3. polluted. Therefore, through the above-mentioned steps, the continuous front light plate substrate 202 can be produced quickly and conveniently, and it is different from the many moving and processing steps caused by making separate plates first and then performing subsequent operations in the past. The difference is huge, and based on this, the effect of improving process efficiency and product quality can be achieved.

Next, please refer to Figure 3, which is a schematic diagram of the manufacturing and assembling equipment of the optical module before an embodiment of the present invention, wherein the structural appearance, rulers, scales, etc. shown in the figure are all helpful for illustrating the present invention. Structural features do not represent the actual structural state, and are described first. Based on the same concept of subtractive engineering, the present invention also proposes a manufacturing and assembling equipment 5 for a front light module, which includes a feeding roller set 50, a pressing roller set 51, a rubberized roller set 52, a cutting device 53, a first An assembly device 54 and a second assembly device 55 .

The feeding roller set 50 is used to unroll a plastic roll material 2 to form a base material 20, and the pressing roller set 51 is arranged on one side of the feeding roller set 50, and is used for printing on the upper surface and/or lower surface of the base material 20 to form multiple The optical microstructure 201, the rubber-covered roller group 52 is arranged on one side of the pressing roller group 51, and is used to cover an optical glue 3 on the base The upper surface and the lower surface of the material 20 to form a front light plate base material 203 with a plurality of continuously arranged optical patterns. The action system of the above-mentioned roller groups is roughly the same as that of the roller groups of the front light plate manufacturing equipment. It is also the first to form the plastic roll material 2 into a continuous strip of substrate 20, and then press it through the printing roller group 51 to form an optical film. The microstructure 201, and then use the glue roller set 52 to coat the optical glue on the upper surface and the lower surface of the base material 20 to form the light board base material 203 before cutting.

The cutting device 53 is disposed on one side of the rubber-covered roller set 52 and is used for cutting the front light plate base material 203 to form a plurality of front light plates 6 . The cutting device 53 can be a device such as a laser or a cutting knife, so as to cut the strip-shaped front light plate base material 203 into separate front light plates 6 according to the size of the front light plate 6 . The first assembling device 54 is arranged on one side of the cutting device 53, and is used to directly assemble a light source module 7 on each front light panel 6, wherein the light source module 7 has a circuit substrate 70 and a plurality of LEDs 71, and the LEDs 71 are arranged on the circuit substrate 70 at intervals , and the circuit substrate 70 is fixed through the optical adhesive 3 on the upper surface of the front light plate 6, so that the LED 71 is located on the side of the front light plate 6. The first assembly device 54 can be, for example, a component with a moving function such as a robot arm, so as to facilitate disposing the light source module 7 on the front light plate 6 . The second assembly device 55 is arranged on one side of the first assembly device 54, and is used to cover an optical element 8 on each front light plate 6, and the optical element 8 is pasted on the front light plate 6 through the optical glue 3 on the upper surface of the front light plate 6. The upper surface of the optical board 6 is further assembled to form a front optical module 9 . Similarly, the second assembling device 55 can also be a component of a transportable object such as a robot arm to stick the optical element 8 on the upper surface of the front light plate 6 , wherein the optical element 8 can be a glass panel or an anti-glare film.

Accordingly, through the manufacturing and assembling equipment 5, the products of the front light module 9 can be produced directly and continuously, and under the characteristics of this kind of equipment, the front light module 9 does not need to go through multiple complicated processing steps in the manufacture and assembly. After the roller sets or devices in each stage are activated, they can be transferred to the next stage of the device to continue the operation, so as to achieve the effect of improving the convenience of processing by subtraction engineering. At the same time in such a technical solution, by There is no need to continuously attach or remove the components, so the phenomenon of dust or air entering the glue can be greatly avoided during the production process, so that the product can maintain excellent quality and yield.

Further, the manufacturing assembly equipment 5 may further include a testing device 56 and a third assembling device 57 , so that the testing and final assembly processes can be integrated into the manufacturing assembly equipment 5 . The testing device 56 is arranged on the side of the second assembly device 55, and is used for carrying out the lighting test for each front light module 9, and the third assembly module 57 is arranged on the side of the testing device 56, in order to test the Each of the front light modules 9 is pasted on a reflective display panel A through the optical glue 3 located on the lower surface of the front light plate 6 . The testing device 56 is used to light up the front light module 9 and test whether its luminous state is as expected, specifically, it can be implemented through various detectors. The third assembly device 57 can also be implemented by using a mechanical arm to facilitate the bonding of the front light module 9 to the reflective display panel A through the optical glue 3 on the lower surface of the front light plate 6. In practice, the third assembly device The 57 series can be set to move the front light module 9 and place it on the reflective display panel A for sticking and fixing, or to move the reflective display panel A to stick it on the lower surface of the front light plate 6 of the front light module 9. Can.

Regarding the characteristics of each roller group of the manufacturing and assembling equipment 5, the feeding roller group 50 can be as described above, specifically having two rollers for removing the protective film material on the plastic roll material 2, to be protected After the film material is removed, a long continuous substrate 20 that can be processed is formed. The imprinting roller set 51 forms the optical microstructure 201 by imprinting on the upper surface and/or the lower surface of the substrate 20 through the rollers. When stamping to form the optical microstructure 201, the stamping roller set 51 includes a stamping roller 511 and a support roller 512. The stamping roller 511 is arranged on the upper side or the lower side of the substrate 20, and the surface is provided with a surface corresponding to the optical microstructure 201. A plurality of grooves or convex ribs, the support roller 512 and the pressing roller 511 are arranged opposite to each other, so that when the pressing roller 511 presses the substrate 20 to form the optical microstructure 201, the opposite side provides a supporting force, so that the pressing roller 511 can be The high-precision optical microstructure 201 is stably printed on the substrate 20 . Rubber-covered roller group 52 also can be the same as the previous paragraph For the above content, it is also possible to use rollers with glue spray nozzles, or to make the rubber-covered roller set 52 include two film rolls 521 and two power rollers 522. 522 and the film 521 are separately arranged on the upper and lower sides of the substrate 20, so that when the power roller 522 rotates, the film 521 is driven to make the optical glue 3 stick on the upper surface and the lower surface of the substrate 20, thereby achieving smooth and fast coating. The effect of cloth colloid.

Please continue to refer to FIG. 4 , which is a flow chart of the manufacturing and assembling method of the optical module before an embodiment of the present invention, and please refer to FIG. 3 together. In this embodiment, a method for manufacturing and assembling a front light module is proposed, which is used for continuous execution in a production line, including the following steps. First, a plastic roll 2 is unrolled to form a substrate 20 (step S20), and then Using a pressing roller set 51 to print on the upper surface and/or lower surface of the substrate 20 to form a plurality of optical microstructures 201 (step S21), and then using a glue-coating roller set 52 to coat an optical glue 3 on the substrate 20 surface and lower surface to form a front light plate base material 203 with a plurality of continuously arranged optical patterns (step S22), and then cut the front light plate base material 203 to form a plurality of front light plates 6 (step S23), which can be continued homework after. Then directly assemble a light source module 7 on each front light plate 6, wherein the light source module 7 has a circuit substrate 70 and a plurality of LEDs 71, the LEDs 71 are arranged on the circuit substrate 70 at intervals, and the circuit substrate 70 passes through the upper surface of the front light plate 6. The optical glue 3 is fixed so that the LED 71 is located on the side of the front light plate 6 (step S24), and then an optical part 8 is covered on each front light plate 6, and the optical part 8 is pasted on the front through the optical glue 3 on the upper surface of the front light plate 6. The upper surface of the optical board 6 is further assembled to form a front optical module 9 (step S25). Accordingly, the purpose of continuously producing the front light plate 6 and assembling it to form the front light module 9 can be realized in the production line through the continuous execution of each step, and through such a step flow, many complicated processing procedures can be effectively omitted , to achieve the effect of processing convenience.

Further, after assembling and forming the front light module 9, the manufacturing and assembling method may further include performing a lighting test for each front light module 9 (step S26), and each front light module 9 that has passed the lighting test A step of pasting the optical glue 3 on the lower surface of the front light plate 6 on a reflective display panel A (step S27 ). Since the front light module 9 is formed through the above steps, on the basis of subtractive engineering, each component does not need to go through quite cumbersome steps, so a certain quality can be maintained during the processing, and a lot of subsequent processing can be omitted. processing steps. After the front light module 9 is set up, it is necessary to check the light emitting state to confirm the overall performance. After the test is confirmed, the front light module 9 can be pasted on the reflective display panel A to form a front light module. 9 rear-end products.

In addition, since the front light module 9 will be a component that the user directly sees and touches in subsequent applications, the light output state and protection of the front light module 9 are taken into consideration. The optical part 8 can be selected as an anti-glare film or a glass panel to adjust the light output of the front light module 9 or to protect the front light plate 6 .

In addition, considering the size and adjustability of the front light module 9, the circuit substrate 70 can be a flexible printed circuit board, which is flexible and more convenient for assembly and subsequent adjustment.

Please continue to refer to FIG. 5 , which is a schematic diagram comparing the manufacturing and assembling process of the optical module before an embodiment of the present invention with the conventional technical process. Part (a) in the figure represents the assembly process of the conventional front light module, and part (b) in the figure represents the process of the present invention. The assembly method of the conventional front light module can be said to be multiple processing steps for each individually made front light plate. As shown in (a-1)~(a-8) of Figure 5, firstly, the release paper is torn off for the finished front light plate, and (a-1) shows the front light plate after the release paper is removed. Then install optical adhesive on the surface of the front light plate after the release paper is removed, and after the optical adhesive on the top side is installed, the release paper needs to be covered to protect the optical adhesive, as shown in (a-2), but because the glue is applied before The action of tearing off the release paper must be done on the front light board first, so it is easy to generate air bubbles after the colloid is placed on the front light board. Then repeat the same operation, install optical adhesive on the other side surface of the front light plate after tearing off the release paper, the method is the same as the previous step, after the optical adhesive on the bottom side is installed, it is also necessary to cover the release paper to protect the optical adhesive, such as (a-3) Institute Show. In addition, because the release paper covering the front light plate must be removed first, the optical adhesive on the bottom side is also prone to air bubbles.

Next, stick an optical film on the front surface of the front light plate. The method is to take the optical film, tear off the release paper on the optical film, and remove the release paper of the optical glue remaining on the front light plate. , and then paste the optical film on the optical glue on the surface of the front light plate, so that the optical film can be fixed on it through the optical glue, as shown in (a-4). In such a process, in addition to tearing off the optical glue, the film tearing action will cause the optical glue to be exposed to the air, so after the optical film is attached, the optical glue is also prone to bubbles and adhesion again. dirty. The next process is to install the light bar to the front light panel. The method is to first obtain the light bar with its own adhesive and release film, and then tear off the release film on the light bar, so that the light bar can be pasted through the back adhesive and fixed on the On the upper surface of the front light plate, the LEDs of the light bar are correspondingly located on the side of the front light plate, as shown in (a-5). After the light strip is assembled, it needs to be degassed again. The reason is that the above-mentioned processes need to tear off the release paper continuously, which will cause bubbles to form at each layer of components, so it needs to go through the degassing process to Remove the remaining air bubbles, as shown in (a-6). Then perform a lighting test, as shown in (a-7), to confirm the light output status of the front light module. After being tested, the front light module is pasted on the reflective display panel, as shown in (a-8).

(b-1)~(b-5) in Figure 5 are the process operations of the present invention after cutting and forming the front light plate 6, because the front light plate is manufactured through the front light plate manufacturing and assembly method and equipment of the front light module of the present invention 6. The optical glue 3 has been applied to the upper surface and the lower surface of the substrate 20 through the glue-coating roller group 52 before cutting to form the separation plate, so there is no need to perform two glue-coating actions, and there is no need to repeat The release paper is removed and covered, and the optical component 8 and the light source module 7 can be attached and fixed directly through the optical glue 3 on the upper surface of the front light plate 6 . Then, because the manufacturing and assembling method and equipment do not require constant tearing of the film as in the prior art, there will be no air bubbles during the assembling process, and the degassing operation can be omitted, and the front light module 9 can be directly processed. Just do a lighting test. After passing the lighting test, it can be pasted and fixed on the reflective display panel A through the optical glue 3 on the lower surface of the front light plate 6 .

It is obvious from the above comparison that the manufacturing and assembling method and equipment are indeed subtractive engineering compared with the prior art and many steps that may damage or affect the product are omitted. The method and equipment for manufacturing and assembling the front light module is to make separate front light boards 6 with optical glue 3 by continuously performing the actions of printing, gluing and cutting in the production line. The group 7 and the optical component 8 are glued and fixed through the optical glue 3 already arranged on the front light plate 6, and the front light module 9 can be made without repeated tearing and re-covering of the film. In the further assembly of the front light module 9 , the defoaming operation can also be skipped and the lighting test can be performed directly, and finally the front light module 9 and the reflective display panel A can be bonded and fixed through the optical glue 3 of the front light plate 6 . After omitting many process steps, the manufacturing and assembling method and equipment not only have no adverse effect on the products produced, but also provide related products with higher quality, which can indeed achieve better performance after omitting technical features. Production quality, and effectively reduce the time required for production.

To sum up, the manufacturing and assembling method of the optical module and its equipment before the present invention are based on the concept of subtractive engineering and use the roller processing method to achieve the effect of greatly improving the convenience of processing. Through the above-mentioned technical means, the present invention merges the manufacture of the front light plate and the front light module into the same production line and proceeds successively. The base material is directly processed to make the front light plate with optical glue, and then the front light module is made , it is not the concept of secondary processing such as glue coating on the pre-made light board, so that the problem of product quality affected by too many complicated processes can be reduced, and the production time and complexity can be effectively reduced, which can also be improved. Convenience in processing. To reiterate here, the equipment and method disclosed in the present invention focus on obtaining the front light plate and front light module products at one time through the continuous production method, and then can achieve the effect of improving the convenience of processing and reducing the manufacturing cost by subtractive engineering. Its overall process steps do not have common knowledge It can be easily thought of by arbitrarily omitting the common knowledge at the time of application. The equipment and method of the present invention are based on a special front light plate manufacturing process to produce a front light plate with optical glue, and then use such a front light plate structure to make a front light module in a faster and more convenient process, and according to This continuation of the terminal assembly application means that the equipment and method disclosed in the present invention cannot be disassembled for individual steps, and the overall process should be viewed together to obtain the convenience advantages brought by the subtractive engineering process emphasized in the present invention.

2: plastic coil

20: Substrate

201:Optical Microstructure

203: Front light plate base material

3: Optical glue

5: Manufacture and assembly equipment

50: Feed roller group

51: Imprint roller set

511:Printing roller

512: support roller

52: Rubber-covered roller set

521: film

522: Power Roller

53: Cutting device

54: The first assembly device

55: The second assembly device

56: Test device

57: The third assembly device

6: Front light plate

7: Light source module

70: circuit substrate

71:LED

8: Optics

9: Front light module

A: Reflective display panel

Claims (8)

A manufacturing and assembling method of a front light module, which is used for continuous execution on a production line, comprising the following steps: unrolling a plastic roll to form a substrate; using a pressing roller set on the upper surface and/or lower surface of the substrate Surface printing to form complex optical microstructures; using a glue-coated roller set to coat an optical glue on the upper and lower surfaces of the base material to form a front light plate base material with a plurality of continuously arranged optical patterns; cutting the front light plate Base material to form a plurality of front light plates; directly assemble a light source module on each of the front light plates, wherein the light source module has a circuit substrate and a plurality of LEDs, the LEDs are arranged on the circuit substrate at intervals, and the circuit substrate is located through the The optical adhesive on the upper surface of the front light plate is fixed so that the LEDs are located on the side of the front light plate; Paste on the upper surface of the front light plate, and then assemble to form a front light module. The method for manufacturing and assembling the front light board of the front light module as described in Claim 1 further includes performing a lighting test on each of the front light modules, and passing each of the front light modules that have passed the lighting test through the lower surface of the front light board The optical adhesive is pasted on a reflective display panel. According to claim 1, the optical panel manufacturing and assembling method of the optical module, wherein the optical element is an anti-glare film or a glass panel. According to claim 1, the method for manufacturing and assembling an optical board before an optical module, wherein the circuit substrate is a flexible printed circuit board. A manufacturing and assembling equipment for a front light module, comprising: A set of feed rollers, used to unroll a plastic roll to form a substrate; a set of press rollers, located on one side of the set of feed rollers, for pressing on the upper surface and/or lower surface of the substrate to form multiple Optical microstructure; a glue-coated roller set, set on one side of the pressing roller set, for covering an optical glue on the upper surface and the lower surface of the substrate, so as to form a front light plate with a plurality of continuously arranged optical patterns base material; a cutting device, set on one side of the rubber-covered roller group, for cutting the front light plate base material to form a plurality of front light plates; a first assembly device, set on the side of the cutting device, for direct assembly A light source module is on each of the front light plates, wherein the light source module has a circuit substrate and a plurality of LEDs, and the LEDs are arranged on the circuit substrate at intervals, and the circuit substrate is bonded through the optical glue on the upper surface of the front light plate. fixed so that the LEDs are located on the side of the front light plate; and a second assembly device is arranged on one side of the first assembly device for covering an optical part on each of the front light plates, and the optical part is transmitted through The optical glue located on the upper surface of the front light plate is pasted on the upper surface of the front light plate, and then assembled to form a front light module. The manufacturing and assembling equipment for the front light board of the front light module as described in claim 5 further includes a test device and a third assembly device, the test device is arranged on the side of the second assembly device, and is used for each front light The module performs a lighting test; the third assembly device is arranged on one side of the testing device, and is used to stick each of the front light modules that have passed the lighting test to a reflector through the optical glue located on the lower surface of the front light plate. on the display panel. As stated in claim 5, the optical board manufacturing and assembling equipment before the optical module, wherein, the rubber-covered roller set includes two films and two power rollers, the two power rollers are installed in the hollow area of the two films, and the two power The roller and the two films are respectively arranged on the upper side and the lower side of the substrate, when the two When the power roller rotates, it drives the two films so that the optical glue is pasted on the upper surface and the lower surface of the base material. As described in Claim 5, the optical board manufacturing and assembling equipment before the optical module, wherein, when the pressing roller set is used for printing on the upper surface or the lower surface of the substrate to form the optical microstructures, the pressing roller set includes A stamping roller and a support roller, the stamping roller is arranged on the upper side or the lower side of the substrate, and the support roller is opposite to the stamping roller, so that when the stamping roller stamps the substrate to form the optical microstructures , with support provided by the opposite side.

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