KR20150034465A - Measuring System Including Transparency Measurement Device And Measurement Method Of Transparency - Google Patents

Abstract

The present invention relates to a measuring system comprising: a transparency measuring apparatus which can assess a transparency grade; a background for measuring, used as data for an assessment to the transparency measuring apparatus, displaying one or more among a spiral pattern where a first through N pattern area is divided, a circular pattern where circles of which the thickness of a line and a separation gap are equal are displayed, a circular pattern where circles of which the thickness of a line and the separation gap are wide are sequentially displayed in a direction from the external surface to the internal surface, or a figure displayed with the three primary colors of light; a transparent display which is located between the transparency measuring apparatus and the background for measuring and is fixed by a support apparatus; and a light source apparatus radiating light in order to make the transparency measuring apparatus measure the background for measuring and the transparent display.

Description

TECHNICAL FIELD [0001] The present invention relates to a measurement system including a transparency measuring device and a transparency measuring method,

The present invention relates to a measurement system including a transparency measurement apparatus and a transparency measurement method.

A display device generally refers to a device that displays an image according to a voltage applied by a predetermined signal, and typically includes a liquid crystal display device and an organic light emitting diode (OLED) device, .

Such a display device has a display panel in which a circuit is formed in two transparent substrates. In general, it has been generally used to cover a case on the opposite side of a surface on which an image is displayed. In recent years, A technique for replacing objects using a conventional transparent substrate, such as an aquarium or a glass wall, with a display device formed only of a panel has been proposed and recognized as a new technology called a transparent display (Transparent Display) .

Such a transparent display is partially used for advertising, and can be applied to various fields in the future.

The transparent display can be used not only for the light passing through it but also depending on how clearly the image of the object located on the rear side of the transparent display can be transmitted. However, since the accurate measurement method and criteria are not determined, Was measured as the transparency standard of the transparent display.

Therefore, even if the light transmittance is high, the distortion of the light including the optical dispersion and the polarization characteristic of the transparent display itself is not taken into consideration, so that the image of the object illuminated from the rear of the transparent display of high rating and the image of the object recognized by the observer There is a problem in that the transparency grade becomes less effective as the expectation of the transparency is different.

The present invention solves the problem that the effectiveness of the transparency grade is lowered by a conventional measuring method that evaluates the transparency rating based on the brightness of light passing through the transparent display without considering the characteristics of the transparent display.

In order to solve the above problems, the present invention provides a transparency measuring apparatus comprising: As the data for evaluation in the transparency measurement apparatus, a linear pattern in which the first to N-pattern regions are divided, or a circle pattern in which a plurality of circles having a constant spacing between the line thickness and the line are constant, A measurement background in which at least one of a thickness and a spacing interval, a circular pattern sequentially displayed, or a figure represented by three primary colors of light is displayed; A transparent display positioned between the transparency measurement device and the measurement background and fixed to the support device; And a light source device for irradiating light for allowing the transparency measurement device to measure the background for measurement and the transparent display.

The transparency measuring apparatus includes a controller for performing an operation for evaluating transparency grade, a camera for generating the data to perform an operation for evaluating transparency grade, a storage for storing the data generated by the camera, And a step of forming a pattern.

It is further characterized in that the apparatus further comprises one or more of the transparency measuring device, the light source, the background for measurement, and the supporting device for fixing the transparent display.

On the other hand, the present invention relates to a transparency measuring device capable of evaluating the degree of transparency, and a transparency measuring device, which is used as data for evaluation in the transparency measuring device, in which a linear pattern in which first to N- A background for measurement in which at least one of a circular pattern having a plurality of regular circles or a circular pattern sequentially displaying a thickness and a spacing interval of a line in a direction from the outer surface toward the inner surface or a figure represented by three primary colors of light is displayed; A transparent display that is positioned between the transparency measurement device and the measurement background and fixed to the support device; and a light source device that irradiates light to enable the transparency measurement device to measure the measurement background and the transparent display In the first to Nth pattern regions, A measurement step of generating data and acquisition data; An analysis step of analyzing the acquired data and the intensity of the reference data for the selected n-th pattern area of the first to N-th pattern areas and converting the analyzed data into reference pattern data and acquired pattern data; An evaluation step of comparing intensity of each of the reference pattern data and the acquired pattern data with respect to the n-th pattern area; And a determination step of outputting the determination data output in the evaluation step.

The reference pattern data includes the image obtained by photographing the background for measurement located on the rear surface of the glass substrate.

The evaluation step may include outputting the determination data to the determination step when the intensity of the acquired pattern data for the n-th pattern area is lower than the lightness of the reference data for the n-th pattern area; And repeating the analyzing step when the intensity of the acquired pattern data for the n-th pattern area is similar to the intensity of the reference data for the n-th pattern area.

The step of repeating the analysis step is characterized by analyzing the intensity of each of the acquired pattern data and the reference pattern data for the (n + 1) -th pattern area.

The repeating of the analysis step is characterized in that after the transparent display is moved in the direction of the transparency measurement device, the acquisition pattern data for the n-th pattern area is regenerated.

The determining step further includes a step of receiving a rating evaluation criterion in a storage unit of the transparency measurement apparatus and substituting the determination data output in the evaluation step.

The n-th pattern region may be measured in ascending order from the first pattern region, or may be measured in descending order from the Nth pattern region.

The measurement system and the transparency measuring method including the transparency measuring apparatus according to the present invention can be applied not only to the luminance of light but also to the clarity of the image of the object passing through the transparent display and the dispersion of light transmitted through the transparent display, And transparency measuring device for evaluating the degree of transparency of the transparent display can be improved.

1 is a block diagram illustrating a measurement system according to an embodiment of the present invention.
FIG. 2 is an algorithm illustrating a process of calculating a degree of transparency measuring apparatus according to an embodiment of the present invention.
FIG. 3 is a photograph showing photographs taken at a moment when the degree of transparency is measured and evaluated according to the transparency measuring apparatus and the measuring system including the transparency measuring apparatus according to the embodiment of the present invention.

Hereinafter, a measuring system and a transparency measuring method including the transparency measuring apparatus according to an embodiment of the present invention will be described with reference to the drawings.

1 is a block diagram illustrating a measurement system according to an embodiment of the present invention.

1, the measurement system of the transparency measurement apparatus according to the embodiment of the present invention can be applied to an environment in which the viewing position and the distance of the subject on the back of the transparent display 110 can be changed. A transparent display 110 in a transparent state fixed to the supporting device 115, a light source device 130 capable of adjusting the luminance, and a measurement background 120 displaying a plurality of patterns, The transparency measuring device 101 and the supporting device 115 may further include moving means 105a and 105b as necessary.

The measurement background 120 may include a plurality of linear and circular patterns having different thicknesses and spacing, or a printed material having three primary colors of light. In some cases, the linear and circular patterns and the display The device may also be used.

In particular, each of the patterns shown in the measurement background 120 may be arranged in such a manner that the thickness of the line or the circumference of the circle and the spaced distance are sequentially narrowed. In the embodiment of the present invention, the thickness of the line and the spacing And the first to N-th pattern regions arranged in this order are displayed.

At this time, as the first to Nth pattern regions become closer to the first pattern region, the line thickness and the spacing distance between the patterns become wider, and the closer to the Nth pattern region, the narrower the line width and the narrower the distance between the patterns And the like.

The transparency measuring apparatus 101 includes a control unit (not shown) that performs a predetermined algorithm to perform measurement, analysis, and determination; a storage unit (not shown) that stores data and determination criteria for comparison; (Not shown) capable of generating images are connected to each other.

The transparency measuring device 101 is spaced apart from the background for measurement 120 by a first distance d1 and the interval between them can be changed by moving the transparency measuring device 101 for more detailed measurement.

A second distance d2 indicating the distance between the transparency measuring device 101 and the transparent display 110 and a third distance d3 indicating the distance between the transparent display 110 and the measurement background 120 are the second distance d2, The transparency measuring device 101 and the transparent display 110 and the measurement background 120 can be changed as long as the sum of the third distances d1 and d2 does not exceed the first distance d1. It is preferable to be located on one straight line.

In this case, the image of the measurement background 120 measured by the transparency measuring apparatus 101 changes according to the movement of the transparent display 110, and transparency in various situations can be measured.

In the case of the measurement system including the transparency measurement apparatus 101 according to the embodiment of the present invention, one light source apparatus 130 is located above the transparent display 110, but a plurality of light sources are required Two light sources may be disposed between the transparency measuring device 101 and the transparent display 110 and between the transparent display 110 and the measurement background 120, respectively.

The measurement system according to an embodiment of the present invention can measure the light distribution of light transmitted through the transparent display 110 and the sharpness of the image of the object reflected from the rear surface of the transparent display 110, It is possible to measure the image of the object which is illuminated at the time of the actual observation such as the distortion, so that the transparency corresponding to the image of the object observed by the observer can be evaluated.

This is driven according to the algorithm of the transparency measurement apparatus 101, and will be described with reference to Fig. 2 below.

FIG. 2 is an algorithm illustrating a process of calculating a degree of transparency measuring apparatus according to an embodiment of the present invention.

2, the transparency measuring apparatus according to an embodiment of the present invention includes a controller (not shown) that can be driven in a manner of observing transparency and evaluating the transparency, and a storage unit And a camera (not shown) that generates pattern data used for evaluation. The control unit (not shown) includes a measuring step S11, an analyzing step S12, and an evaluating step S13 And is driven according to an algorithm for determining the grade in the determination step S14.

In the measurement step S11, a measurement background (FIG. 1 (a)) formed on the charge coupled device (charge coupled device) through the transparent display (110 in FIG. 1) Of image data 120) into acquisition data.

At this time, if the reference data for the measurement background (120 in FIG. 1) is not present in the storage unit (not shown) in the first measurement step S11, (Reference numeral 120 in FIG. 1) formed on the charge coupled device, including reference voltages, to the reference data.

The reference data is obtained by placing a glass substrate in place of the transparent display (110 in FIG. 1) on the front surface of the measurement background (120 in FIG. 1) and photographing mainly a linear pattern and a circular pattern, .

At this time, since the reference data photographed with the glass substrate positioned is much higher in intensity than the acquired data obtained by placing the transparent display (110 in FIG. 1), it is corrected to appear lower than the actual intensity, I can get off.

In the analysis step S12, the intensity of each of the acquired data and the reference data for the same pattern area is analyzed and converted into acquisition pattern data and reference pattern data.

The first analysis step (S12) generates acquired pattern data and reference pattern data which are converted into numerical values so that the obtained data for the first pattern area and the intensity of each of the reference data can be compared.

In this case, the intensity of the linear pattern can be defined through the average of the luminance distribution measured for each pattern region, and the intensity of the circular pattern can be defined through the average of the luminance distribution measured for each pattern region. The intensity of light can be defined as a tone value for one area.

Further, by measuring the portions other than the first to Nth pattern regions and comparing the brightness represented by the reference data with the brightness represented by the acquired data, the brightness for light transmitted through the optical dispersion and transparent display (110 in FIG. 1) is measured .

The first evaluation step S13 compares the acquisition of the first pattern area generated in the first analysis step S12 and the reference pattern data so that the acquired pattern data is similar to the reference pattern data, If the illustrated patterns can be easily identified, the process returns to the analysis step S12 again to generate acquired pattern data and reference pattern data for the second pattern area whose line thickness and spacing are relatively narrow compared to the first pattern area do.

The analysis step S12 and the evaluation step S13 are repeated to determine whether the lightness represented by the acquired pattern data for the n-th pattern area (one area selected from among 1? N? N-1) It is judged that it is difficult to identify the patterns shown in the n-th pattern area or the similarity between the acquired pattern data and the reference pattern data for the N-th pattern area in which the line thickness and spacing interval is the narrowest If so, the process goes to the determination step S14.

For example, when the intensity of the acquired pattern data for the first pattern area is higher than the intensity of the reference pattern data for the same pattern area, the process returns to the analysis step S12 to obtain the same pattern as the intensity of the acquired data for the second pattern area If the intensity of the acquired pattern data for the first pattern area is lower than the intensity of the reference pattern data for the same pattern area, (S14).

In the determination step S14, the determination pattern data outputted in the evaluation step S13 is received, and determination data can be generated in accordance with the number of times of repeating the analysis step S12 and the evaluation step S13, The rating can be set by receiving the evaluation criterion from the storage (not shown) of the transparency measurement device (101 of FIG. 1) and substituting the judgment data.

The judgment data or gradation after this step is not only a transparency evaluation standard for the distance according to the actual observation but also a case where the step of measuring the luminance and the light dispersion is further performed in the analysis step S12, It can be used as a transparency evaluation standard.

1) is a spatial measurement method for analyzing a plurality of pattern areas photographed in a fixed state. The transparency measuring apparatus according to an embodiment of the present invention includes a transparent display (110 of FIG. 1) It is also possible to use a temporal measuring method of continuously photographing an image of one pattern area projected on the rear surface and analyzing the image.

The transparency measuring apparatus (101 in FIG. 1) driven according to this measuring method compares the acquired pattern data with the reference pattern data for the same pattern area at one position, thereby to evaluate and evaluate the transparency of the object, (110 in FIG. 1) and an image of a pattern passing through the transparent display (FIG. 1) will be described with reference to FIG.

FIG. 3 is a photograph showing photographs taken at a moment when the degree of transparency is measured and evaluated according to the transparency measuring apparatus and the measuring system including the transparency measuring apparatus according to the embodiment of the present invention.

As shown in FIG. 3, a transparency measuring apparatus 101 (FIG. 1) according to an embodiment of the present invention photographs a plurality of patterns shown in a measurement background (120 in FIG. 1) (D2 in Fig. 1) and the third distance (D3 in Fig. 1) are moved at intervals of 10 cm by moving the transparent display (110 in Fig. 1) Are different from each other.

At this time, the numbers shown on the left side of the pattern indicate simple units for rating at the time of experiment, and the higher the number, the higher the rating.

In the case of P1 indicating that the transparent display (110 in Fig. 1) is close to the measurement background (120 in Fig. 1) and the third distance (d3 in Fig. 1) is 0 cm, the ninth pattern area 9) is similar to the intensity of the reference pattern data for the same pattern area, and the intensity of the acquired pattern data for the tenth pattern area (the area at the lower end of the left side of the photograph) The intensity of the data was lower than that of the reference pattern data for the same pattern area, and it was judged that the discrimination was difficult. The transparency measuring apparatus (101 in FIG.

That is, when the transparent display (110 in FIG. 1) is spaced apart from the background for measurement (120 in FIG. 1) by 0 cm, a line having a width equal to or wider than the thickness and spacing of lines displayed in the ninth pattern area, Are evaluated to indicate that they can be identified.

In the case of P2 indicating that the third distance (d3 in Fig. 1) is 10 cm, the sixth pattern area (the area located between 6 and 7 shown on the left side of the photograph) and the seventh pattern area 7), the transparency measuring device (101 in FIG. 1) converts it to a middle grade of grade 6 and grade 7, which is a middle grade between grade 6 and grade 7, Respectively.

That is, when the transparent display (110 in FIG. 1) is spaced apart by 10 cm from the measurement background (120 in FIG. 1), the thickness and spacing shown in the interval between the sixth pattern area and the seventh pattern area A line having a width, or an image.

In the case of P3 indicating that the third distance (d3 in Fig. 1) is 20 cm, the intensity of the acquired pattern data for the third pattern area shown in the photograph (the area located between 3 and 4 shown on the left side of the photograph) The intensity of the acquired pattern data for the fourth pattern area (the area at the lower end of the left 4 of the photograph) is lower than the intensity of the reference pattern data for the same pattern area It was determined that the identification was difficult, and the transparency measuring apparatus (101 in FIG.

That is, when the transparent display (110 in FIG. 1) is spaced apart by 20 cm from the measurement background (120 in FIG. 1), a line having a width equal to or wider than the thickness and spacing indicated in the third pattern area, Are evaluated to indicate that they can be identified.

In the case of P4 indicating that the third distance (d3 in Fig. 1) is 30 cm, the first pattern area shown in the photograph (the area located between 1 and 2 shown on the left side of the photograph) and the second pattern area 2) of the first and second grades, which is a midpoint between the first grade and the second grade, is different from the middle grade of the first grade and the second grade, Respectively.

That is, when the transparent display (110 in FIG. 1) is spaced by 30 cm from the background for measurement (120 in FIG. 1), the thickness and spacing shown in the interval between the first pattern area and the second pattern area , Or images that can be identified.

As described above, the transparency measuring apparatus (101 in FIG. 1) according to the embodiment of the present invention accepts an image of an object by using a camera (not shown) capable of receiving information similar to an image of an object actually observed by an observer The pattern data is converted into the pattern data and compared with the stored reference pattern data to designate the class. Thus, the observer can provide a class that can recognize the image of the object normally.

That is, in the transparency measuring apparatus and the measuring method thereof according to the embodiment of the present invention, when the grading is repeated for each condition, it is possible to accurately determine the degree of the image of the object that can be recognized by the observer, The degree of effectiveness of the grade for the grade determination of the transparency measuring apparatus according to the embodiment of the present invention becomes high.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that

100: Observation system 101: Transparency measuring device
105: moving means 115: supporting device
110: Transparent display 120: Background for measurement
130: Light source device

Claims (10)

A transparency measuring device capable of evaluating transparency grade;
As the data for evaluation in the transparency measurement apparatus, a linear pattern in which the first to N-pattern regions are divided, or a circle pattern in which a plurality of circles having a constant spacing between the line thickness and the line are constant, A measurement background in which at least one of a thickness and a spacing interval, a circular pattern sequentially displayed, or a figure represented by three primary colors of light is displayed;
A transparent display positioned between the transparency measurement device and the measurement background and fixed to the support device;
Wherein the transparency measuring device is a light source device for irradiating light for measuring the measurement background and the transparent display
.
The method according to claim 1,
The transparency measuring apparatus includes a controller for performing an operation for evaluating transparency grade, a camera for generating the data to perform an arithmetic operation for evaluating transparency rating, and a storage unit for storing the data generated by the camera The measurement system comprising:
The method according to claim 1,
Wherein the measurement system further comprises a moving means for moving at least one of the transparency measurement device, the light source, the background for measurement, and the support device for fixing the transparent display.
A transparency measuring device capable of evaluating the degree of transparency; a transparency measuring device used as data for evaluation of the transparency measuring device, in which a linear pattern in which first to N-pattern regions are divided, or a circle having a plurality of circles A background for measurement in which at least one of a pattern or a circular pattern sequentially displayed in a direction from the outer surface to the inner surface in the thickness and spacing interval of the line or a figure represented in the three primary colors of light is displayed, And a light source device for illuminating the measurement background and the transparent display so that the transparency measurement device can measure the background and the transparent display. The transparency measurement method includes the steps of: As a result,
A measurement step of generating reference data and acquisition data for the first to Nth pattern regions;
An analysis step of analyzing the acquired data and the intensity of the reference data for the selected n-th pattern area of the first to N-th pattern areas and converting the analyzed data into reference pattern data and acquired pattern data;
An evaluation step of comparing intensity of each of the reference pattern data and the acquired pattern data with respect to the n-th pattern area;
A determination step of outputting the determination data output in the evaluation step
Wherein the transparency measurement method comprises the steps of:
5. The method of claim 4,
Wherein the reference pattern data is obtained by photographing the background for measurement located on the rear surface of the glass substrate.
5. The method of claim 4,
In the evaluation step,
Outputting the determination data to the determination step when the intensity of the acquired pattern data for the n-th pattern area is lower than the lightness of the reference data for the n-th pattern area;
Repeating the analysis step when the intensity of the acquired pattern data for the n-th pattern area is similar to the intensity of the reference data for the n-th pattern area
Wherein the transparency measurement method comprises the steps of:
The method according to claim 6,
Wherein the step of repeating the analysis step is performed by analyzing intensity of each of the acquired pattern data and reference pattern data for the (n + 1) -th pattern area.
The method according to claim 6,
Wherein the step of repeating the analysis step regenerates the acquired pattern data for the n-th pattern area after moving the transparent display in the direction of the transparency measurement device.
5. The method of claim 4,
Wherein said determining step further includes the step of receiving a rating evaluation criterion in a storage section of said transparency measurement apparatus and substituting said judgment data outputted in said evaluation step.
The method according to claim 1,
Wherein the n-th pattern area is measured in ascending order from the first pattern area or in descending order from the N-th pattern area.

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