TWI567435B - Guide plate and its dot pattern manufacturing method - Google Patents

Description

Light guide plate and method for manufacturing the same

The invention relates to the field of light guide plates, in particular to the field of dot products of light guide plates.

In liquid crystal display, it can be divided into two main display technologies, one is to control the image by using Spatial Color Filter (SCF), and the other is Field Sequential Color (FSC). ). In the early days of liquid crystal display, SCF display technology was used. In the liquid crystal module part, the single pixel was formed by three sub-pixels, and each sub-pixel controlled its electric field intensity through a thin film transistor to determine each sub-pixel. The intensity of the light passed is modulated with its corresponding primary color filter, so that the primary color light corresponding to each sub-pixel is further mixed into the final display image. In view of the color rendering, contrast and thinness requirements of liquid crystal displays, liquid crystal displays using FSC display technology have emerged. The FSC display discards the color filter mode, and the multi-color light source of the backlight module performs color switching according to the timing, and the conversion time of each light source is synchronized to drive the film transistor to control the liquid crystal pixel penetration amount to match the primary colors. Relative to the amount of light, the image is displayed by the visual persistence to the viewer. Compared with the SCF technology, the FSC technology removes the color filter, so it is not necessary to cut the sub-pixels again in each pixel, but relies on the mixture of the multi-color sources to develop the image, so the color saturation characteristics The performance is superior to the SCF display technology, and the display efficiency can greatly improve the light utilization efficiency and reduce the power consumption. Moreover, the FSC LCD display simplifies the liquid crystal cell by omitting the filter on the component. The process and the reduction of the number of thin film transistors required in a single pixel can greatly reduce the cost of raw materials and simplify the complexity of the control circuit. Therefore, liquid crystal displays are increasingly adopting FSC as the main display technology. For the display used in the SCF display technology, the backlight module must be a white light source and guide the light through the light guide plate to filter the color filter to form the primary color light. The display used in the FSC display technology can adjust the light source according to the timing and cooperate with the light guide plate to guide the light to match the thin film transistor for development.

At the same time, with the advancement of technology, today's display devices are becoming more diverse, and transparent display devices have emerged. The transparent display device has a certain degree of light transmission for the display panel itself, and can clearly display the background behind the panel while displaying the image, thereby making it visually less heavy and conforming to the present display device. Light and thin requirements. Transparent display devices can be widely used in various fields, such as building windows, car windows, shop windows or screens for computers, televisions, and mobile phones.

Since the transparent display device must display the image while viewing the background behind the display panel, the light transmittance of the display panel, that is, the transmittance is an important index. In the conventional transparent display device, the ambient light source is generally used as the light source for displaying the image, but in order to ensure that the transparent display device has sufficient light source at night or ambient light, how to set the backlight in the transparent display device Modules have become an important issue. Since the transparent display device needs to be viewed by the user to the background behind the display panel, some parts of the conventional backlight module must be omitted to avoid occlusion. Therefore, the traditional backlight module is not suitable.

An object of the present invention is to provide a light guide plate and a method for manufacturing the dot pattern thereof, which can improve the color rendering and image definition of a display using the light guide plate, and enhance the light guide. Processing margin and design space of the board.

In order to achieve the above object, the present invention discloses a light guide plate for use in a color sequential transparent liquid crystal display having a one-side backlight module and a liquid crystal module. The light guide plate is arranged with a plurality of pixel regions corresponding to the liquid crystal module, and the pixel regions are arranged in a matrix, and are tapered inward from each of the pixel regions to form a dot region, and At least one of the dots is provided with at least one dot; thereby, the dot region is tapered inwardly from each of the pixel regions, and the adjacent pixel regions are not mutually emitted when the light is emitted to the liquid crystal module influences.

Wherein, the side length of each of the pixel regions is A, the side length of each of the dot regions is a, the distance between the light guide plate and the liquid crystal module is h, and the angle of the outgoing light at the mesh point is 2θ, and is consistent with The condition is that the adjacent pixel regions are not affected by each other when the light is emitted to the liquid crystal module, so as to improve the display performance of the field color sequential transparent liquid crystal display.

In the above manner, in order to further improve the light utilization efficiency of the light guide plate, the present invention sets the non-such spot regions of the light guide plate to be mirror-like.

In still another embodiment, the present invention discloses a light guide plate comprising: at least one non-deployed area in a grid shape; and a plurality of distribution points defined by a grid of the non-deployed area, and scattered in the non-deployed area And at least one of the dots is provided with at least one dot. Thereby, when the light is transmitted through the dot, the light trajectory at the edge can be limited to a certain area.

When the light guide plate is applied to the display field, the grid line width of the non-circle point area is b, and the side length of each of the cloth point areas is a, and the side length of the pixel area is defined as a+b. When the light guide plate emits light from a certain adjacent pixel region to a certain range, it does not affect each other.

Based on the above manner, in order to further improve the light utilization efficiency of the light guide plate, the present invention sets the non-spotted area to be a mirror-like surface.

In addition, the present invention further discloses a method for manufacturing a light guide plate dot, which is provided with at least one dot disposed in at least one of the spot regions of the light guide plate in the foregoing embodiments, and the manufacture of the dot pattern of the light guide plate. The method includes the following steps: generating a mask pattern for the non-spot area of the light guide plate; defining a dot pattern according to the specification of the light guide plate; and inputting the mask pattern and the dot pattern into a processing machine; and setting The processing machine does not machine any dots in the mask pattern. Thereby, the dot is processed into the divided spot area by automated processing.

In one embodiment, the setting of the processing machine does not process any dots in the mask pattern, and the manner of moving the dots in the mask pattern to the outside of the mask pattern is performed. Or, as described in another embodiment, the method of directly ignoring the dot to be processed in the mask pattern is used to adjust the processing machine to process the region of the dot on the light guide plate.

In another embodiment, the present invention discloses a method for fabricating another dot pattern of a light guide plate, wherein at least one dot is disposed in at least one of the spot regions of the light guide plate in each of the foregoing embodiments, and the dot pattern of the light guide plate is provided. The manufacturing method includes the following steps: generating a mask pattern for the non-spot area of the light guide plate; defining a dot pattern according to the specification of the light guide plate; and deleting a part of the dot of the dot pattern by using the mask pattern, thereby generating a processing pattern; and input processing patterns on a processing machine. In this method, the mask pattern and the dot pattern are used to form the processing pattern, and then the processing machine performs the processing of the dot according to the processing pattern. Process.

In summary, the light guide plate of the present invention limits the processing range of the dot through the dot area, and utilizes the undotted area between the dot areas to make the light from the spot in the spot area not affect the phase. The adjacent pixel area enhances the color rendering and image sharpness of the display to which the light guide is applied. Moreover, the design of the dot area of the present invention can improve the processing margin of the dot by performing the effect of the adjacent pixels without affecting each other even if the light has a large angle of light at the dot. Degree and design changes. According to the dot manufacturing method disclosed in the present invention, the dot can be accurately processed in the spot area to achieve the above-mentioned light guide plate state and effect.

1, 2‧‧‧ light guide

10‧‧‧ Non-point area

11, 21‧‧‧

12, 22‧‧‧ outlets

13, 20‧‧‧ pixel area

3‧‧‧Side-in backlight module

30‧‧‧Red light source

31‧‧‧Green light source

32‧‧‧Blue light source

4‧‧‧LCD Module

40‧‧‧Thin film transistor layer

S101~S104‧‧‧Steps

S105~S106‧‧‧Steps

Fig. 1 is a perspective view showing a first embodiment of the present invention.

Fig. 2 is a plan view showing the first embodiment of the present invention.

3 is a perspective view of a light guide plate according to a second embodiment of the present invention.

Figure 4 is a schematic exploded view showing the application of the second embodiment of the present invention.

Figure 5 is a cross-sectional view showing a partial application of a second embodiment of the present invention.

Figure 6 is a flow chart showing the steps of a method for manufacturing a dot pattern of a light guide plate of the present invention.

Figure 7 is a flow chart showing another step of the method for fabricating the dot pattern of the light guide plate of the present invention.

In order to make the light out of the light guide plate, the uniformity can be better. Therefore, the light guide plate is mostly designed with a microstructure to adjust the light output and the uniform light output state. However, in the application of the transparent display device, the microstructures are easy to be recognized by the viewer, and are also easy to make the display image. The phenomenon of clumping. Based on years of practical experience and long-term technical research, the inventor of this case has in-depth discussion of the technical problems that will occur when the whole machine manufacturer in the industrial chain uses the light guide plate on the transparent display, and proposes corresponding improvement schemes as follows.

In order to improve the contrast and transparency of the transparent display, if the sCF liquid crystal display is used, the color filter inside it will form a blocking phenomenon and affect the transparency of the overall display device. However, if the FSC display technology is used to manufacture a transparent display device, in order to avoid insufficient resolution of the displayed image, it is necessary to ensure that the color light between each pixel does not affect each other in the time series of the multi-color light source. As mentioned above, as a transparent display, the requirement of light transmittance is much higher than that of a general display. How to avoid the microstructure of the light guide plate does not affect the light transmittance and display efficiency, and adjusts the light by the corresponding pixels to be downstream. Panel makers are unfamiliar and have never thought about it.

Therefore, the technicians of the general panel industry should intuitively hope that the dots on the light guide plate can adjust the light uniformity by using their own density changes, and at the same time, they can form a light beam with a relatively uniform light-emitting shape at each dot. However, the collimated light package relies on the sharp dot structure at the bottom and is not suitable for mass production.

Therefore, in order to prevent the influence of the color light of the pixels from affecting each other, and to reduce the influence of the microstructure on the display performance, the inventor of the present invention conceived a light guide plate and a dot pattern manufacturing method thereof, which can effectively solve the above-mentioned technical problems of the transparent liquid crystal display. In order for your review board to have a clear understanding of the contents of the present invention, please refer to the following description for matching drawings.

Please refer to FIGS. 1 and 2, which are perspective views and plan views of the first embodiment of the present invention. A light guide plate 1 according to the present invention includes at least one non-deployed area 10 and a plurality of dotted areas 11.

The non-deployed area 10 is in the form of a grid, and the point areas 11 are The dot area 10 is defined, and is scattered in the non-spot area 10, and at least one of the dot areas 11 is provided with at least one dot 12. The arrangement points 11 may be arranged in a matrix, and corresponding to the grids of the non-arranged areas 10 of the grid shape, and arranged in a state as shown in FIG. The dot 12 is a light-receiving microstructure for destroying the total reflection phenomenon after the light is incident on the light guide plate 1 , thereby adjusting the light uniformity, and the dot 12 can be set in plural, and each of the dots 11 The number and position of the network points 12 can be adjusted according to the optical requirements. In this embodiment, the network points 12 are set in plural, and each of the distribution points 11 has the same number and arrangement of the network points 12, but the invention is not limited. herein.

The light guide plate 1 disclosed in the embodiment can be applied to various display fields. When the light guide plate 1 is applied to a backlight module in a display, the plurality of pixel regions 13 can be arranged. Therefore, the grid line width of the non-circle point area 10 is b, and the side length of each of the arrangement point areas 11 is a, thereby defining at least one side of the pixel area 13 to be a+b, and as shown in FIG. . Preferably, the dot regions 11 are located within the pixel regions 13, and each of the pixel regions 13 includes one of the dot regions 11. In addition, in order to improve display performance such as resolution or color rendering of the display provided with the light guide plate 1, at least one of the pixel regions 13 is covered by the corresponding spot region 11 and the layout region 11 A portion of the peripheral side of the non-deployed area 10, further, at least one boundary line of the pixel area 13 coincides with each of the central axes of the mesh area of the non-arranged area 10. In this divided form, the pixel region 13 includes the dot region 11 therein, and the non-marking region 10 covered by the length of the 1/2b length from the boundary of the dot region 11 is thereby When the image is displayed, the adjacent pixel regions 13 are not affected by each other when the light is emitted to a certain range, and the display effect of the display can be effectively improved. The light-emitting range can be light emitted from the pixel region 13 To the display module's distance to one of the displays from. By defining the setting range of the dot 12 on the light guide plate 1 so that the light does not interfere with each other in the different pixel regions 13, the design and processing margin of the dot 12 can be further improved to More diverse optical design. In other words, even with CNC tools, laser processing technology or ink jet printing technology, the light guide plate or the mold for transfer can be manufactured without the need for a highly collimated light shape at the top or bottom of each dot. The shape of the light that is scattered by the light package does not affect the effect of adjacent pixels. However, the arrangement of the arrangement areas 11 and the division of the pixel areas 13 can be adjusted according to the optical requirements of the actual application, and only at least one of the pixel areas 13 must meet the above-mentioned side length conditions. .

In addition, in order to improve the light utilization rate, the non-arranged area 10 is set to be a mirror-like surface to effectively utilize the light incident on the light guide plate 1. Specifically, the mold for fabricating the light guide plate 1 is formed by molding the mold of the light guide plate 1 by injection molding, or the mold for molding the light guide plate 1 by rolling plastic. The area in contact with the non-deployed area 10 is mirrored to enhance the smoothness of the non-arranged area 10.

Please refer to FIGS. 3, 4 and 5, which are schematic perspective views of the light guide plate according to the second embodiment of the present invention, an exploded view of the application, and a schematic cross-sectional view of a partial application. In the present embodiment, a light guide plate 2 of the present invention is applied to a color sequential transparent liquid crystal display, and the field color sequential transparent liquid crystal display has a side input backlight module 3 and a liquid crystal module 4 The light guide plate 2 is disposed in the side-entry backlight module 3 . The side-lit backlight module 3 includes at least one red light source 30, at least one green light source 31, and at least one blue light source 32, and the red light source 30, the green The light source 31 and the blue light source 32 emit light according to a timing frequency and are guided by the light guide plate 2 to form light. Preferably, the red light source 30, the green light source 31 and the blue light source 32 are One LED, respectively, in addition to the demand Set a white light source. The liquid crystal module 4 further includes a thin film transistor layer 40, which adjusts the electric field intensity to control the imaging frequency according to the aspect of the image to be displayed, and is matched with the red light source 30, the green light source 31, and the blue light source. 32 follows the light generated by the timing to achieve the purpose of color mixing. However, in order to highlight the technical features of the present invention, the side-lit backlight module 3 and the liquid crystal module 4 may further include components such as a substrate, a liquid crystal layer, a display panel, and the like, which are not described herein.

The light guide plate 2 is characterized in that the liquid crystal module 4 is disposed with a plurality of pixel regions 20, and the pixel regions 20 are used to display the liquid crystal module 4 on the light guide plate 2. The regions of the prime layer, preferably, may correspond to the thin film transistor layer 40. The pixel regions 20 are arranged in a matrix, and are tapered inwardly from each of the pixel regions 20 to form a dot area 21, and at least one of the dot areas 21 is provided with at least one dot 22. Thereby, each of the arrangement regions 21 is tapered inward from each of the pixel regions 20, so that the adjacent pixel regions 20 do not affect each other when emitting light to the liquid crystal module 4. In this embodiment, each of the pixel regions 20 and each of the dot regions 21 are rectangular, and each of the dot regions 21 is gradually reduced inward from the corresponding pixel region 20, and is located in each pixel. At the center of the area 20, that is, the arrangement area 21 is co-centered with the pixel area 20. The dot 22 of the present invention is designed according to various lighting requirements, and is only located in the dot area 21, so that the light guide plate 2 is not the rest of the dot area 21, and the dot 22 is not present. There is a certain blank area remaining between the layout areas 21 and the network points 22 are not designed, so that the pixel areas 20 do not interfere with each other when the light is emitted to the liquid crystal module 4, and the The color rendering of the field color sequential transparent liquid crystal display. At the same time, more diversified adjustments and designs can be made to the dots 22 in the layout areas 21 to increase the processing margin of the dots 22. The dot 22 is a light-receiving microstructure for destroying the total reflection phenomenon after the light is incident on the light guide plate 2 to adjust the light uniformity and luminance of each of the pixel regions 20. among them, When the dot 22 is set in plural, the distribution density of the dots 22 can be adjusted according to the distance between each of the dot areas 21 and the edge-lit backlight module 3, such as the dot area 21 adjacent to the light source. The density of the dots 22 is relatively small, and the farther away from the spot regions 21 of the light source, the density of the dots 22 disposed therein is relatively large, and the light provided by the light source enters the light guide plate 2 due to the region closer to the light source. After the energy consumption is small, and the brightness is higher, and the region farther from the light source, the light enters the light guide plate 2 and consumes more energy and has lower brightness. Therefore, the above-mentioned dots 22 are By arranging the difference in density, the light guide plate 2 as a whole can have a uniform light-emitting effect.

In the light guide plate 2 of the present invention, the side length of each of the pixel regions 20 is A, and the side length of each of the dot regions 21 is a, and the distance between the light guide plate 2 and the liquid crystal module 4 is h. The exit angle of the dot 22 is 2θ and conforms to The condition is as shown in FIG. 5, when the length of each of the pixel regions 20 is A, in order to cause any of the dots 22 located in the dot region 21 to be emitted to the liquid crystal module 4, the phase is not affected. Adjacent to the pixel area 20, in order to avoid improper color mixing or unclear image development, the light must be adjusted through the network dots 22, and the light trajectory line of the liquid crystal module 4 is not irradiated to the adjacent pixel. In the area. And when satisfied In this conditional condition, any of the dots 22 can be made to meet the above requirements. Therefore, in the present invention, even at a boundary very close to the dot area 21, the dot 22 can be provided by each of the dots. The white space between the areas 21 can effectively prevent the adjacent pixel area 20 from being affected when the network point 22 emits light. In addition, when the layout area 21 is designed, the cost and the like are considered. Since the light guide plate 2 is provided with the side of the side-entry backlight module 3, the light from the side-entry backlight module 3 is directly received. Therefore, the light guide plate 2 is provided with the red light source 30, the green light source 21 and the pixel area 20 on one side of the blue light source 22, which corresponds to the red light source 30, and the green light The source 31 and the side of the blue light source 32 have no doubt that the light is disturbed. Therefore, the red light source 30 can be disposed corresponding to the light guide plate 2 on one side of the dot area 21. The green light source 31 coincides with one side of the blue light source 32. Similarly, the pixel regions 20 located at the edge closest to the light guide plate 2 and the dot regions 21 can also be implemented by using such a design concept. In short, the design of the layout area 21 can adjust the size and orientation of the area where the network point 22 is not disposed according to the relationship between the pixel area 20 and the adjacent pixel area 20. And you can get more changes in the design. The above-mentioned pixel regions 20, the distribution regions 21, and the distribution patterns of the dots 22 are a preferred arrangement, and the present invention is not limited thereto.

Moreover, in order to improve the light use efficiency, the non-such spot regions 21 of the light guide plate 2 are disposed as mirror-like surfaces to more effectively utilize the light incident on the light guide plate 2. In the same manner as described above, the mold for fabricating the light guide plate 2, such as the mold for forming the light guide plate 2 by injection molding, or the mold for molding the light guide plate 2 by rolling plastic, and the guide The area where the light plate 2 is to be formed to contact the mirror-like area is mirror-finished so that the mirror-like area of the light guide plate 2 made through the mold can be made smoother.

Please refer to FIG. 6 , which is a flow chart of the steps of the method for setting the dots on the light guide plates according to the first embodiment and the second embodiment. The invention also discloses a method for manufacturing a dot pattern of a light guide plate, which is provided with at least one dot in at least one of the spot regions of the light guide plate, and the method for manufacturing the dot pattern of the light guide plate comprises the following steps.

First, a mask pattern is generated for the non-such spot regions of the light guide plate, which is step S101. Then, a dot pattern is defined according to the specification of the light guide plate, which is step S102. The specification material of the light guide plate may include but is not limited to the shape and size of the light guide plate. And the thickness and the like, and the dot pattern is a pattern of the dot distribution pattern designed according to various optical requirements. After the mask pattern and the dot pattern are defined, the mask pattern is input into the processing machine in synchronization with the dot pattern, which is step S103. Step S104 is continued to set the processing machine to not process any dots in the mask pattern. Wherein, the method of not processing any dot in the mask pattern may be to move the dot which is originally intended to be processed in the mask pattern to the outside of the mask pattern, even if the processing machine is processing the dot In the case of the light guide plate, the range of the mask pattern is avoided. Or another way is to directly ignore the dot that is originally to be processed in the mask pattern. Thereby, the layout of the dot on the light guide plate can be effectively controlled, and the dot can be processed only in the spot area.

Please refer to FIG. 7 , which is a flow chart of another method step for setting a mesh point in the first embodiment and the second embodiment. In order to make the dots processable in the distribution area, another process method is disclosed. Steps S101 and S102 are performed first, and steps S101 and S102 are the same as those described above, and thus will not be further described herein. After the mask pattern is defined as the dot pattern, a portion of the dots of the dot pattern is deleted by the mask pattern to generate a processing pattern, which is step S105. Then, the processing pattern is input to the processing machine, which is step S106 to execute the processing process of the dot. In the manufacturing method disclosed herein, the processing pattern is formed before the processing pattern is input to the processing machine, that is, the processing pattern is formed through the mask pattern and the dot pattern, for example, the mask pattern and the dot can be adopted. The pattern overlaps each other, and the overlapping dots corresponding to the mask pattern region are deleted to form the processing pattern, and the processing machine can process the dots according to the processing pattern for the light guide plate. . Whether the above-mentioned dots that are originally intended to be processed in the mask pattern are removed or ignored when the processing machine automatically processes the dots, or the mask pattern and the dot pattern are used first to form the plus The processing pattern, and then the processing machine performs the processing process of the dot according to the processing pattern, so that the dots are located in the distribution area.

In the light guide plate of the present invention, the processing range of the dots is defined by the dot regions, and the regions where the dots are not provided are left between the dots to enable the light guide to be applied to the display. When the light is emitted from the light guide plate to the liquid crystal module, the adjacent pixel regions on the light guide plate do not affect each other, and the color rendering of the display can be improved. At the same time, the design of the layout areas, even if the angle of light emitted by the dots is large, can be distributed due to the distribution of the distribution points on the light guide plate, and the light of each of the pixel regions is emitted as described above. The adjacent pixel area will not be exceeded, thereby increasing the design and processing margin of the dot.

However, the above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention; therefore, equivalent changes and modifications may be made without departing from the spirit and scope of the invention. Within the scope of the patent of the present invention.

1‧‧‧Light guide plate

10‧‧‧ Non-point area

11‧‧‧

12‧‧‧ outlets

Claims (9)

A light guide plate is applied to a color sequential transparent liquid crystal display, wherein the field color sequential transparent liquid crystal display has a one-side backlight module and a liquid crystal module, wherein the light guide plate corresponds to the liquid crystal mode Forming a plurality of pixel regions, wherein the pixel regions are arranged in a matrix, and are tapered inward from each of the pixel regions to form a dot region, and at least one dot region is provided with at least one dot; Therefore, the dot area is tapered inward from each of the pixel regions, and the adjacent pixel regions do not affect each other when the light is emitted to the liquid crystal module. The light guide plate of claim 1, wherein each of the pixel regions has a side length A, and a length of each of the dot regions is a, and a distance between the light guide plate and the liquid crystal module is h, The angle of the exiting light of the dot is 2θ and conforms to The conditions. The light guide plate of claim 1, wherein the non-such spot areas of the light guide plate are arranged as mirror-like surfaces. a light guide plate for corresponding to a display setting, wherein the display has a plurality of pixels, comprising: at least one non-circle point area, in a grid shape; and a plurality of cloth point areas defined by a grid of the non-circle point area, and Dispersing the non-deployed area, and at least one of the distribution areas is provided with at least one dot, wherein the non-deployed area has a grid line width of b, and each side of the distribution area has a length of a, thereby defining a pixel area The length is a+b, and the pixel region corresponds to any of the pixels of the display, and the pixel region includes a region of the pixel. The light guide plate of claim 4, wherein the non-deployed area is set to be a mirror-like surface. A method for manufacturing a dot pattern of a light guide plate, wherein the at least one dot is disposed in at least one of the spot regions of the light guide plate according to any one of claims 1 to 5, the manufacture of the dot pattern of the light guide plate The method includes the following steps: generating a mask pattern for the non-spot area of the light guide plate; defining a dot pattern according to the specification of the light guide plate; and inputting the mask pattern and the dot pattern into a processing machine; and setting The processing machine does not machine any dots in the mask pattern. The method for manufacturing a light guide plate dot pattern according to claim 6, wherein the processing machine does not process any dots in the mask pattern, and the original processing is performed in the mask pattern. The dot moves out of the mask pattern. The method for manufacturing a light guide plate dot pattern according to claim 6, wherein the setting of the processing machine without processing any dot in the mask pattern directly ignores the original processing in the mask pattern. The outlet. A method for manufacturing a dot pattern of a light guide plate, wherein the at least one dot is disposed in at least one of the spot regions of the light guide plate according to any one of claims 1 to 5, the manufacture of the dot pattern of the light guide plate The method includes the following steps: generating a mask pattern for the non-spot area of the light guide plate; defining a dot pattern according to the specification of the light guide plate; deleting a part of the dot of the dot pattern by using the mask pattern, thereby generating a processing a pattern; and input processing patterns on a processing machine.