TW201508256A - System and method of measuring antiglare degree - Google Patents

Abstract

A system and a method of measuring an antiglare degree are provided, which are suitable for measuring an antiglare degree of a thin film. The system of measuring an antiglare degree includes a holder, a base, a white light source device, a brightness detector and a calculator. The base is set on the holder and includes a surface having a first region and a second region, in which the surface is suitable for the thin film disposed thereon. The white light source device emits white light toward the thin film on the base for producing a light source image on the thin film at the first region and a halo image on the thin film at the second region. The brightness detector is used for detecting a plurality of first brightnesses of the thin film at the first region and a plurality of second brightnesses of the thin film at the second region. The calculator is used to receive the first brightnesses and the second brightnesses for calculating the antiglare degree of the thin film.

Description

Anti-glare measuring system and measuring method thereof

The invention relates to a measuring system and a measuring method thereof, and in particular to an anti-glare measuring system and a measuring method thereof.

In order to avoid the image of the display device being unrecognizable due to the excessive external light source, an anti-glare film is usually disposed on the outside of the display device. The light is scattered around by the uneven surface of the anti-glare film to reduce the influence of the external light source on the visibility of the display screen of the display device.

The anti-glare film will have different anti-glare effects due to the difference in the surface structure produced by the surface treatment. For example, when the surface of the anti-glare film has a large degree of unevenness, the light of the external ambient light source is more easily scattered around, so that the influence of the external light source on the visibility of the display screen of the display device is small.

However, the user does not purchase the anti-glare film according to the degree of anti-glare effect, but decides according to the degree of his own visual preference. This is because the anti-glare film with different anti-glare effects still produces a visual difference between the display and the screen.

However, the industry still judges the pros and cons of the anti-glare film. Use manual judgment. This is because there is no effective measurement method when judging the degree of the anti-glare film. For example, the "haze" value is measured in accordance with Japanese Industrial Standard JIS K-7136, the "transparency" value is measured in Japanese Industrial Standard JIS K7105-1981, or the "gloss" value is measured in accordance with Japanese Industrial Standard JIS Z 8741-1997. The method is inconsistent with the results of the human eye to judge the degree of the anti-glare film.

However, when judging the pros and cons of the anti-glare film according to the human eye, it is often because the tester's ambient brightness is different, the tester's own physiological factors or the degree of the anti-glare film are too close, resulting in the judgment result of each tester. Not the same. Therefore, when the degree of the anti-glare film is judged by the human eye, it is easy to cause a problem that the final judgment result is inaccurate.

In view of the above, it is not necessary to provide an anti-glare measuring system and a measuring method thereof to improve the drawbacks of conventionally judging the degree of the anti-glare film.

In view of the above problems, an aspect of the present invention provides an anti-glare measuring system and a measuring method thereof, which can avoid the error caused by the manual method for judging the anti-glare degree, and can reduce the problem of the increase of the labor cost caused by the manual method. .

According to an embodiment of the invention, the anti-glare measuring system is adapted to measure the anti-glare of the film, and the anti-glare measuring system comprises a fixing base, a substrate, a white light source device, a brightness detecting device and a computing device. The substrate is mounted on the fixing base, and the substrate comprises a surface, wherein the surface has a first zone and a second zone, and the surface is suitable for the film to be disposed. White light source device is suitable for the base The film on the panel emits a white light beam to produce a source image on the film in the first zone and a halo image on the film in the second zone. The brightness detecting device is adapted to detect a plurality of first brightnesses of the first area and a plurality of second brightnesses of the second area. The computing device is electrically connected to the brightness detecting device, wherein the computing device is adapted to receive the first brightness and the second brightness, and calculate the anti-glare degree of the film by using the first brightness and the second brightness.

In accordance with another embodiment of the present invention, the surface has a width and the length of the source image is equal to the width.

According to still another embodiment of the present invention, the white light source device has an illuminance of 700 lux.

According to still another embodiment of the present invention, the distance between the white light source device and the surface is 1 meter.

In accordance with still another embodiment of the present invention, the first zone is located in a central region of the surface and the second zone is adjacent to the first zone.

According to another aspect of the present invention, an anti-glare measurement method is provided. In one embodiment, a substrate is provided wherein the substrate includes a surface defining a first region and a second region. Set the film on the surface. A white light source is used to emit a white light beam toward the film to produce a source image of the film in the first zone and a halo image in the film of the second zone. The brightness detection device detects the first region to obtain a plurality of first brightnesses and the second region to obtain a plurality of second brightnesses. The difference between the average of the first brightness and the average of the second brightness is calculated by the computing device to obtain the anti-glare degree of the film.

In accordance with another embodiment of the present invention, the surface has a width and the length of the source image is equal to the width.

According to still another embodiment of the present invention, the distance between the white light source device and the surface is 1 meter.

In accordance with still another embodiment of the present invention, the first zone is located in a central region of the surface and the second zone is adjacent to the first zone.

According to still another embodiment of the present invention, the step of defining the first zone and the second zone is further included. First, a substrate is provided, and then a mirror film is disposed on the substrate, and then a white light source is used to emit a white light beam toward the mirror film to generate a light source image on the mirror film, wherein the position of the light source image at the surface is defined as a first region, and the surface is The position where the light source image is not generated is defined as the second area.

Therefore, one of the advantages of the present invention is to provide an anti-glare measuring device and a measuring method thereof, which use a brightness detecting device to measure a predetermined brightness value of each of the first region and the second region, and then use the computing device The anti-glare degree of the film is calculated using the first brightness and the second brightness. Another advantage of the present invention is that the anti-glare degree of each film measured according to the present invention is arranged from small to large, which is the same as the result of judging the degree of the anti-glare effect by the manual. Therefore, the present invention can replace the conventional one by manual judgment. The anti-glare effect can avoid the problem of judging errors or labor costs caused by artificially judging the anti-glare effect.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

100‧‧‧Anti-glare measuring system

110‧‧‧ fixed seat

120, 220‧‧‧ substrate

121‧‧‧ surface

121a, 221‧‧ first district

121b, 222‧‧‧ second district

130‧‧‧film

140‧‧‧White light source device

141‧‧‧Retaining frame

142‧‧‧ bracket

150‧‧‧Brightness detection device

160‧‧‧ Computing device

300‧‧‧Measurement method for anti-glare

310, 320, 330, 340, 350 ‧ ‧ steps

L‧‧‧ length

W‧‧‧Width

1a is a diagram showing an anti-glare degree according to an embodiment of the present invention A perspective view of the measurement system.

1b is a schematic view showing a first region and a second region of a substrate of an anti-glare measuring system according to an embodiment of the present invention.

1c and 1d respectively illustrate that the brightness detecting device of the anti-glare measuring system according to an embodiment of the present invention detects a mirror film having no anti-glare effect and a film to be tested having an anti-glare effect, and then draws The pixel is a horizontal axis and a measurement chart with luminance (candle/square meter) as the vertical axis.

2 is a schematic view showing that the length of the light source image in the first region of the anti-glare measuring system according to an embodiment of the present invention is smaller than the width of the substrate.

3 is a flow chart showing a method for measuring an anti-glare degree according to an embodiment of the present invention.

The apparatus and use of embodiments of the present invention are discussed in detail below. However, it will be appreciated that the embodiments provide many applicable inventive concepts that can be implemented in a wide variety of specific content. The specific embodiments discussed are illustrative only and are not intended to limit the scope of the invention.

1a and 1b, FIG. 1a is a perspective view showing an anti-glare measuring system according to an embodiment of the present invention, and FIG. 1b is a perspective view showing an anti-glare measuring system according to an embodiment of the present invention. Schematic diagram of the first zone and the second zone of the substrate. The anti-glare measurement system 100 is adapted to measure the anti-glare of the film 130. In one embodiment, the anti-glare measurement system 100 includes a mount 110, a substrate 120, a white light source device 140, a brightness detecting device 150, and a computing device 160.

The fixing base 110 can be used to fix the position of the substrate 120, and the substrate 120 can also be disposed and fixed on the fixing base 110. The substrate 120 may be surface treated such that the surface 121 of the substrate 120 reflects an image of the object. The film 130 may be disposed on the surface 121 of the substrate 120. The film 130 may be a film to be tested having an anti-glare effect, or may be a mirror film having no anti-glare function. The white light source device 140 can be fixed to the holder 141. Moreover, the fixing frame 141 can be adjustably disposed on one side of the fixing base 110 by the bracket 142. Through the bracket 142, the position of the white light source device 140 can be adjusted, and the distance of the white light source device 140 relative to the surface 121 of the substrate 120 can be changed. The white light source device 140 can emit a white light beam toward the film 130 on the substrate 120 to produce a light source image on the film 130 of the first region 121a and a halo image on the film 130 of the second region 121b.

The brightness detecting device 150 can be used to detect a plurality of first brightness of the film 130 in the first region 121a and a plurality of second brightness of the film 130 in the second region 121b. That is, the brightness detecting device 150 can detect the brightness of the film 130 at a plurality of locations within the first region 121a and the brightness of the film 130 at a plurality of locations within the second region 121b. The computing device 160 is electrically connected to the brightness detecting device 150. The computing device 160 can be configured to receive the first brightness and the second brightness detected by the brightness detecting device 150, and can calculate the anti-glare degree of the film 130 by using the received first brightness and the second brightness.

In the present embodiment, since the film 130 is provided on the surface 121 of the substrate 120, the film 130 in the first region 121a refers to the film 130 corresponding to the position of the first region 121a of the surface 121 of the substrate 120. Similarly, the film 130 in the second region 121b refers to the surface 121 corresponding to the substrate 120. The film 130 at the second zone 121b position.

In some embodiments, the calculation of the anti-glare degree of the film 130 may be, for example, a difference obtained by subtracting the average value of the first brightness detected by the brightness detecting device 150 from the average value of the second brightness, the difference. That is, the degree of anti-glare of the film 130. Generally, the smaller the anti-glare degree, the smaller the luminance difference between the first region 121a and the second region 121b, that is, the film 130 has a better anti-glare effect on the ambient light source.

In the present embodiment, the aforementioned mirror film can be used to define the positions of the first region 121a and the second region 121b of the substrate 120. Since the mirror film does not have an anti-glare function, when the mirror film is provided on the substrate 120, only the light source image of the white light source device 140 is seen on the substrate 120, and no halo image is generated. The position of the light source image on the surface 121 of the substrate 120 is defined as the first region 121a, and the position at which the surface 121 of the substrate 120 does not generate the light source image is defined as the second region 121b.

When the film to be tested having the anti-glare effect is disposed on the substrate 120, the image of the object reflected by the substrate 120 will have different visual effects due to different anti-glare effects of the films to be tested. In general, if the film 130 is provided with the film 130 having a small anti-glare effect, the light source image of the clear white light source device 140 can be seen in the first region 121a, and the second region 121b is seen to be smaller. Halo image. On the other hand, if the film 130 is provided with the film 130 having a large anti-glare effect, the light source image of the blurring white light source device 140 can be seen in the first region 121a, and a larger light is seen in the second region 121b. Halo image. Since the surface of the film 130 having a large anti-glare effect has a large unevenness, the white light beam may not be generated after passing through the film 130. The scattering of the rule causes the white light source device 140 to be blurred, thereby having a large anti-glare effect.

Referring to FIGS. 1c and 1d, FIGS. 1c and 1d respectively illustrate a brightness detecting device for an anti-glare measuring system according to an embodiment of the present invention, which detects a mirror film having no anti-glare effect and has an anti-glare effect. After the film to be tested, the pixel is measured on the horizontal axis and the brightness (candle/square meter) is plotted on the vertical axis. As can be seen from the 1c and 1d images, the film to be tested having an anti-glare effect can lower the first brightness and increase the second brightness, thereby reducing the value of the anti-glare. Therefore, the thinner the anti-glare effect of the film 130, the lower the anti-glare degree.

It is to be noted that, for the same film to be tested, the illuminance value of the white light source device 140 does not change the anti-glare degree of the film to be tested. For example, when the white light source device 140 causes the illuminance value to decrease as the usage time increases, the amount of decrease in the first brightness and the second brightness is also the same, so the average value of the first brightness is subtracted from the average value of the second brightness. When the difference is used as anti-glare, the anti-glare will not change.

For computational convenience, the length of the source image can be equal to the width of the surface of the substrate. For example, please refer to FIG. 2 , which is a schematic diagram showing that the length of the light source image of the first region of the anti-glare measuring system according to an embodiment of the present invention is smaller than the width of the substrate. If the length L of the light source image is smaller than the width W of the surface of the substrate 220, and the light source image is adjusted to the central area of the surface of the substrate 220, the upper and lower sides of the first region 221 will produce a halo image, and thus will be regarded as the first Zone 2 222, this will cause computational difficulties. On the contrary, as shown in Figure 1b, if the length of the light source image is L Equal to the width W of the surface of the substrate, only the difference between the first brightness of the first area 121a and the second brightness of the second area 121b located on the left and right sides of the first area 121a can be considered. In addition, it should be mentioned that the length L of the light source image here is equal to the width W of the surface of the substrate, which means that the entire image of the white light source device can be larger than or exactly equal to the width W of the surface of the substrate. For example, in the case where the entire image of the white light source device is larger than the surface width W of the substrate, the white light source device is a long straight fluorescent tube. For example, the light source image may correspond to only the central region of the fluorescent tube, that is, the light source image. There is no image of the head end and the tail end of the fluorescent tube, but the length L of the light source image is the same as the surface width W of the substrate.

Please refer to FIGS. 1a, 1b and 3 together, wherein FIG. 3 is a flow chart showing the method for measuring the anti-glare degree according to an embodiment of the present invention. In one embodiment, when the anti-glare measurement method 300 is used to measure the anti-glare of the film 130, step 310 is first performed to provide the substrate 120. The substrate 120 includes a surface 121 defining a first region 121a and a second region 121b. Next, in step 320, the film 130 is disposed on the surface 121 of the substrate 120. Next, step 330 is performed to emit a white light beam toward the film 130 by the white light source device 140, thereby generating a light source image on the film 130 of the first region 121a, and generating a halo image on the film 130 of the second region 121b. Then, step 340 is performed to perform brightness detection of the film 130 by using the brightness detecting device 150, and obtain a plurality of first brightnesses of the film 130 corresponding to the first region 121a of the surface 121 of the substrate 120, and the film 130 corresponds to A plurality of second brightnesses of the second region 121b of the surface 121 of the substrate 120. Then, step 350 is performed to calculate the detected by the brightness detecting device 150 by using the computing device 160. The difference between the average of the first brightness and the average of the second brightness is obtained, and the anti-glare of the film 130 is obtained.

On the other hand, the anti-glare measuring method of the present invention can define the positions of the first region 121a and the second region 121b of the surface 121 of the substrate 120 before the step 310 of providing the substrate 120. In some embodiments, when the first region 121a and the second region 121b of the surface 121 of the substrate 120 are defined, the substrate 120 on which the mirror film 130 is disposed on the surface 121 may be first provided, and then emitted to the mirror film 130 by the white light source device 140. The white light beam is used to generate a light source image on the mirror film 130. The position of the light source image on the surface 121 of the substrate 120 is defined as the first region 121a, and the position on the surface 121 where the light source image is not generated is defined as the second region 121b.

In order to explain more clearly, the anti-glare measuring device and the measuring method thereof of the present invention can replace the conventional one to manually judge the anti-glare effect of the film, and can avoid the judgment error or artificially generated when the anti-glare effect is manually determined. The problem of rising costs is explained below using a plurality of tests.

Referring to Table 1 below, Table 1 utilizes the conventional techniques and the anti-glare measuring device of the present invention and the measuring method thereof, and the measurement results for 12 films having different anti-glare effects.

In Table 1, the "haze" value is measured in accordance with Japanese Industrial Standard JIS K-7136; the "transparency" value is measured in accordance with Japanese Industrial Standard JIS K7105-1981; and the "Gloss (60°)" value is It is measured in accordance with Japanese Industrial Standard JIS Z 8741-1997. Among them, the incident light is incident on the surface of the film at an incident angle of 60°. The manual judgment is to select five people and judge the degree of anti-glare effect of 12 films according to their naked eyes. If the anti-glare effect is better, the number is smaller, and the judgment results of all five people are comprehensively judged. In order to make a final decision. The anti-glare degree is measured according to the anti-glare measuring method of the present invention, wherein the white light source device has an illuminance of 700 lux, the white light source device has a distance of 1 m from the surface of the substrate, and the first region is defined at the center of the surface. The area, the second area is adjacent to the first area.

As can be seen from the above Table 1, the results measured by the anti-glare measuring device of the present invention and the measuring method thereof are consistent with the final determination result by the manual determination. On the other hand, the use of the "haze" value, the "transparency" value or the "gloss (60°)" value does not coincide with the final judgment result of the manual determination. It can be seen that the anti-glare measuring device and the measuring method thereof of the present invention can replace the conventional method of manual judgment, and can avoid the problem of judging errors or increasing labor costs caused by artificially judging the anti-glare effect. .

On the other hand, the anti-glare measuring device and the measuring method thereof of the present invention have an anti-glare degree which is more excellent in digitizing the anti-glare effect of the film. point. Therefore, the film manufacturer can first produce a number of standard film of different anti-glare effects, and for example, the anti-glare effect is marked with a value between 1 and 100 in accordance with the anti-glare effect. On the other hand, the consumer can preview the anti-glare effect produced by the standard-size film in advance, and then purchase or order a film of a specific anti-glare range according to his own visual preference. Therefore, if the anti-glare effect is digitized, it will help manufacturers and consumers communicate with each other.

In summary, it can be seen from the above embodiments of the present invention that the anti-glare measuring device and the measuring method thereof are applied, and the anti-glare degree obtained after measuring the film is the same as that measured by the manual method, so that it can replace the conventional method of judging by hand. Moreover, it is possible to avoid the problem of judging errors or increasing labor costs caused by artificially judging the anti-glare effect. In addition, the anti-glare effect of the film helps the communication between the film manufacturer and the consumer after defining the specific value through the anti-glare.

The present invention has been disclosed in the above embodiments, and is not intended to limit the present invention. Any one of ordinary skill in the art to which the present invention pertains can make various changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

100‧‧‧Anti-glare measuring system

110‧‧‧ fixed seat

120‧‧‧Substrate

130‧‧‧film

140‧‧‧White light source device

141‧‧‧Retaining frame

142‧‧‧ bracket

150‧‧‧Brightness detection device

160‧‧‧ Computing device

Claims (10)

An anti-glare measuring system for measuring an anti-glare degree of a film, the anti-glare measuring system comprising: a fixing base; a substrate disposed on the fixing base and comprising a surface, wherein the surface has a surface a first zone and a second zone, and the surface is adapted to be disposed on the film; a white light source device adapted to emit a white light beam toward the film disposed on the substrate to be on the film of the first zone Generating a light source image and generating a halo image on the film of the second region; a brightness detecting device adapted to detect a plurality of first brightness of the film in the first region and in the second region a plurality of second brightnesses; and a computing device electrically coupled to the brightness detecting device, wherein the computing device is adapted to receive the first brightness and the second brightness, and to utilize the first brightness and the The second brightness calculates the degree of anti-glare of the film. The anti-glare measuring system of claim 1, wherein the surface has a width, and one of the light source images has a length equal to the width. The anti-glare measuring system according to claim 1, wherein the white light source device has an illuminance of 700 lux. The anti-glare measuring system according to claim 1, wherein the distance between the white light source device and the surface is 1 meter. The anti-glare measuring system of claim 1, wherein the first zone is located in a central region of the surface, and the second zone is adjacent to the first zone. An anti-glare measuring method, comprising: providing a substrate, wherein the substrate comprises a surface defining a first region and a second region; providing a film on the surface; and transmitting the film to the film by using a white light source device a white light beam for generating a light source image on the film of the first area and a halo image on the film of the second area; detecting the first area by using a brightness detecting device to obtain a plurality of a first brightness, and the second area to obtain a plurality of second brightness; and calculating, by using a computing device, a difference between an average of the first brightness and an average of the second brightness Glare. The anti-glare measuring method of claim 6, wherein the surface has a width, and one of the light source images has a length equal to the width. The method for measuring anti-glare according to claim 6, wherein the distance between the white light source device and the surface is 1 meter. An anti-glare measuring method as described in claim 6 of the patent application scope, The first zone is located in a central region of the surface, and the second zone is adjacent to the first zone. The method for measuring an anti-glare degree according to claim 6, further comprising the steps of: defining the first region and the second region: providing the substrate; providing a mirror film on the substrate; and using the white light source device Transmitting the white light beam toward the mirror film to generate the light source image on the mirror film, wherein the position of the light source image at the surface is defined as the first region, and a position of the surface where the light source image is not generated is defined as the Second district.