KR102059603B1 - Display panel, display panel design method and recording medium thereof - Google Patents

Abstract

A method of designing a display panel is disclosed. The design method of the display panel is to set the curvature of the display panel based on the calculation step and the difference value for repeatedly calculating the difference value between the right viewing angle and the left viewing angle at each viewing position while changing the viewing position for each curvature of the display panel. Steps. Accordingly, a curved display panel capable of reducing the viewing angle distortion while increasing the immersion feeling by increasing the viewing angle of the viewer than the flat display panel can be implemented.

Description

DISPLAY PANEL, DISPLAY PANEL DESIGN METHOD AND RECORDING MEDIUM THEREOF}

The present invention relates to a display panel, a method of designing a display panel and a storage medium thereof, and more particularly, to a display panel having an optimum radius of curvature, a method of designing a display panel and a storage medium thereof.

With the development of electronic technology, various types of electronic products are being developed and distributed. In particular, various display devices such as TVs, mobile phones, PCs, notebook PCs, PDAs, and the like are widely used in most homes.

As the use of display devices has increased, so have user needs for more diverse functions. As a result, efforts by manufacturers to meet user needs have increased, and products with new functions that have not existed in the past have been introduced one after another.

In particular, the curvature display panel in which the left and right sides of the display panel are curved can increase the immersion by increasing the viewing angle of the viewer than the flat display panel.

However, there is a problem that the viewer of the viewer located on the side from the center area of the curvature display panel increases the distortion of the viewing angle to watch the distorted image.

Accordingly, there is an increasing demand for obtaining an optimum radius of curvature capable of minimizing a viewing angle distortion problem according to a viewer's position.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a display panel having a curvature for reducing viewing angle distortion, a display panel design method, and a storage medium thereof.

The display panel design method according to an embodiment of the present invention for achieving this object, iteratively calculate the difference between the right and left viewing angle at each viewing position while changing the viewing position for each curvature of the display panel And setting the curvature of the display panel based on the calculating step and the difference value.

The setting of the curvature of the display panel may include setting the curvature of the display panel based on a curvature range and a viewing distance range in which the difference value is minimum.

The setting of the curvature of the display panel may include calculating, for each curvature, a sum of difference values calculated for a plurality of viewing positions, and setting a curvature of the display panel to a minimum curvature of the display panel. Can be.

The calculating may include setting a curvature of the display panel to a first curvature, setting one viewing position with respect to the display panel having the first curvature, and right and left viewing angles at the set viewing position. Performing a process of calculating a difference value of a plurality of times, storing a result of the execution, setting a curvature of the display panel as a second curvature, and one viewing position with respect to the display panel having the second curvature; And setting a value and calculating a difference value between the right view angle and the left view angle in the set viewing, and storing the result of the execution a plurality of times.

The calculating of the difference between the right viewing angle and the left viewing angle at the viewing position may include a first viewing direction facing the center area of the display panel at a preset reference position, and the display panel at the preset viewing position. Calculating a viewing angle at the set viewing position by comparing a second viewing direction facing a center region, and calculating a viewing distance in which the plane in which the center region is located and the set viewing position are vertically connected in a straight line And calculating the right viewing angle and the left viewing angle at the set viewing position using the audiovisual angle and the viewing distance, and calculating and storing a difference value between the right viewing angle and the left viewing angle.

On the other hand, the audio-visual may be calculated through the equation (1).

Here, S is the horizontal length from the set viewing position to the center area of the display panel, and D represents the viewing distance.

The right viewing angle may be calculated through Equation 2, and the left viewing angle may be calculated through Equation 3.

Where D is an viewing distance, A is an audiovisual angle, h is a horizontal straight line length of the display panel, d is a thickness of the display panel, and a is a curvature angle.

On the other hand, the display panel according to an embodiment of the present invention is designed and manufactured by the above-described display panel design method.

In addition, in a storage medium in which a program for designing a display panel according to an embodiment of the present invention is stored, the program may include a difference between a right viewing angle and a left viewing angle at each viewing position while changing viewing positions for each curvature of the display panel. Based on the calculation step of repeatedly calculating the value and the difference value, the step of setting the curvature of the display panel is sequentially performed.

The setting of the curvature of the display panel may include setting the curvature of the display panel based on a curvature range and a viewing distance range in which the difference value is minimum.

The setting of the curvature of the display panel may include calculating, for each curvature, a sum of difference values calculated for a plurality of viewing positions, and setting a curvature of the display panel to a minimum curvature of the display panel. Can be.

According to various embodiments of the present disclosure as described above, a curved display panel capable of reducing the viewing angle distortion while increasing the immersion feeling by making the audiovisual angle of the viewer larger than the flat display panel may be implemented.

1 is a diagram illustrating a display device including another display panel according to an exemplary embodiment.
FIG. 2 is a diagram illustrating a right viewing angle and a left viewing angle required to set the curvature of another display panel according to an embodiment of the present disclosure.
3 is a diagram illustrating information necessary for setting the curvature of the display panel according to an embodiment of the present invention.
4 to 7 are tables and graphs showing the difference values of the right viewing angle and the left viewing angle at each viewing position while changing viewing positions for each curvature of the display panel according to an exemplary embodiment of the present invention.
8 to 30 are tables and graphs showing the sum of difference values calculated for a plurality of viewing positions for each curvature of a display panel according to another exemplary embodiment.
31 is a flowchart illustrating a method of designing a display panel according to an exemplary embodiment.
32 is a flowchart illustrating a method of setting a curvature of a display panel according to an exemplary embodiment.
33 is a flowchart for explaining a method of setting a curvature of a display panel according to another exemplary embodiment.

Hereinafter, with reference to the drawings will be described the present invention in more detail. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, and may vary according to intention or relationship of a user or an operator. Therefore, the definition should be made based on the contents throughout the specification.

1 is a diagram illustrating a display device including another display panel according to an exemplary embodiment.

According to FIG. 1, the display apparatus 100 includes a curved display panel 110. The display device 100 may be implemented as various types of electronic devices such as a TV, an electronic blackboard, an electronic table, a large format display (LFD), a smart phone, a tablet, a desktop PC, a notebook computer, and the like.

In addition, the display panel 110 has a constant curvature or radius of curvature by bending the left and right sides of the display panel in a planar state. Here, the curvature or the radius of curvature is a value capable of displaying the degree of curvature at each point of the curved surface. That is, the curvature of the curved surface becomes smoother as the curvature or radius of curvature increases, and the curvature of the curved surface becomes sharper as the curvature or curvature radius decreases.

In the present specification, both the curvature and the radius of curvature will be defined as meaning a value capable of displaying the degree of curvature at each point of the curved surface.

In the case of the display panel 110, the user located at the center of the display panel 110 increases the immersion feeling because the viewing angle is larger than that of the flat display panel, but the user located at the side of the display panel 110 may display the display panel 110. Distortion of the viewing angle at both ends of the left and right sides of is generated.

In order to reduce the distortion of the viewing angle, the design method of the display panel according to an exemplary embodiment calculates a difference between the right viewing angle and the left viewing angle at the viewing position.

FIG. 2 is a diagram illustrating a right viewing angle and a left viewing angle required to set the curvature of another display panel according to an embodiment of the present disclosure.

Referring to FIG. 2, the display panel 110 is bent to have a constant curvature so that the display panel 110 may correspond to a portion of a circle having one center point 10. Accordingly, the line 1 positioned in the direction perpendicular to the tangent of the center area of the display panel 110, the line 2 positioned in the direction perpendicular to the tangent of the right end of the display panel 110, and the display panel ( Lines 3 located in a direction perpendicular to the tangent of the left end of the 110 are all radii having the same length, and all meet at the center point 10 of the circle including the display panel 110.

In addition, an angle formed by the line 2 positioned in a direction perpendicular to a line of sight looking toward the right end of the display panel 110 and a tangent at the right end of the display panel 110 at the viewing position 20 where the user is located ( A line 3 positioned at a direction perpendicular to the line of sight looking toward the left end of the display panel 110 and the tangent at the left end of the display panel 110 from the viewing position where the user 230 is located at the right viewing angle. The angle 220 formed by) is the left viewing angle.

Here, the line 1 positioned in the direction perpendicular to the tangent of the center area of the display panel 110, the line 2 positioned in the direction perpendicular to the tangent of the right end of the display panel 110, and the display panel 110. The line 3 in which the direction perpendicular to the tangent of the left end of the line is located is a line of sight that looks at the center area of the display panel 110 from the center point 10 of the circle, which is the preset reference position, and the circle which is the preset reference position. It is the same as the gaze direction looking at the right end of the display panel at the center point 10 of and the gaze direction looking at the left end of the display panel at the center point 10 of the circle, which is a preset reference position.

As described above, the method for designing a display panel according to an exemplary embodiment of the present invention calculates a difference between the right viewing angle 210 and the left viewing angle 220 at a specific viewing position. Here, as the difference between the right viewing angle 210 and the left viewing angle 220 at the specific viewing position decreases, the viewing angle distortion at the specific viewing position may be reduced.

Meanwhile, to describe the design method of the display panel according to an exemplary embodiment of the present disclosure, reference is made to FIG. 31.

31 is a flowchart illustrating a method of designing a display panel according to an exemplary embodiment.

Referring to FIG. 31, in the method of designing a display panel according to an exemplary embodiment, the difference between the right viewing angle and the left viewing angle at each viewing position is repeatedly calculated while changing the viewing position for each curvature of the display panel 110. And setting the curvature of the display panel 110 based on the calculation step S3110 and the difference value (S3120).

Here, the calculating step S3110 may repeatedly calculate the difference between the right viewing angle and the left viewing angle at each viewing position based on the arbitrary curvature and the viewing position of the display panel 110.

Specifically, the calculating step (S3110) sets the curvature of the display panel 110 to the first curvature and sets one viewing position with respect to the display panel 110 having the first curvature and the right side at the set viewing position. The process of calculating the difference between the viewing angle and the left viewing angle is performed a plurality of times and the result of the execution is stored.

For example, the calculating step (S3110) sets the curvature of the display panel 110 to 4000R, and changes the viewing position so that the viewing distance from the display panel 110 increases from 1000 mm to 4000 mm in 100 mm increments. The difference value between the right viewing angle and the left viewing angle at the position can be calculated.

Subsequently, the calculating step S3110 sets the curvature of the display panel 110 to the second curvature and sets one viewing position with respect to the display panel having the second curvature, and sets the right viewing angle and the left viewing angle in the set viewing. The process of calculating the difference value is performed a plurality of times and the result of the operation is stored.

That is, the calculating step (S3110) sets the curvature of the display panel 110 to 4100R, and changes the viewing position so that the viewing distance from the display panel 110 increases from 1000 mm to 4000 mm in 100 mm increments, at each viewing position. The difference between the right viewing angle and the left viewing angle of can be calculated.

As described above, the calculating step S3110 calculates a difference value between the right viewing angle and the left viewing angle based on various curvatures and various viewing positions of the display panel 110, and stores the result.

Here, a detailed process of calculating the difference between the right viewing angle and the left viewing angle at the viewing position will be described in detail.

3 is a diagram illustrating information necessary for setting the curvature of the display panel according to an embodiment of the present invention.

Referring to FIG. 3, the display panel 110, the right viewing angle 210, the left viewing angle 220, the thickness 230 of the display panel 110, the viewing distance 240, the curvature angle 250, and the viewing angle 260. ), The horizontal straight line length 270 of the display panel 110 and the horizontal length 280 from the set viewing position 20 to the center area of the display panel 110 are shown.

Here, as described with reference to FIG. 2, the right viewing angle 210 is a line of sight 4 looking at the right end of the display panel 110 from the viewing position 20 where the user is located and a center point 10 of the circle which is a preset reference position. Is an angle formed by the line of sight 2 facing the right end of the display panel, and the left viewing angle 220 is the line of sight 6 facing the left end of the display panel 110 at the viewing position 20 where the user is located. ) And the gaze direction 3 looking at the left end of the display panel from the center point 10 of the circle, which is a preset reference position.

On the other hand, the process of calculating the difference between the right viewing angle and the left viewing angle at the viewing position, the first viewing direction looking at the center area of the display panel at the preset reference position, and looking at the center area of the display panel at the set viewing position And comparing the second viewing line direction to calculate the viewing angle at the set viewing position.

Referring to FIG. 3, the process of calculating the audiovisual angle may include a first viewing direction 1 looking at the center area of the display panel 110 from a preset reference position, that is, a circle 10, and a set viewing position 20. An audio-visual 260 may be calculated by comparing the second viewing line direction 5 facing the center area of the display panel 110.

The calculating of the difference between the right viewing angle and the left viewing angle at the viewing position may include calculating a viewing distance in which the plane in which the center region is located and the set viewing position are vertically connected in a straight line.

Referring to FIG. 3, the process of calculating the viewing distance is based on a plane on which the center region of the display panel 110 is located, that is, a plane contacting the center region and a straight line connecting the set viewing position 20 vertically. The distance 240 can be calculated.

Subsequently, the process of calculating the difference between the right viewing angle and the left viewing angle at the viewing position is performed by using the viewing angle 260 and the viewing distance 240, and the right viewing angle 210 and the left viewing angle at the set viewing position 20 ( And calculating a step 220).

The calculating of the difference between the right viewing angle and the left viewing angle at the viewing position includes calculating and storing the difference between the right viewing angle 210 and the left viewing angle 220.

In particular, the audiovisual 260 may be calculated through the following equation.

Here, S denotes the horizontal length 280 from the set viewing position 20 to the center area of the display panel 110, and D denotes the viewing distance 240.

That is, the audiovisual 260 may be changed by the viewing position 20 and the viewing distance 240. In addition, the horizontal length 280 from the set viewing position 20 to the center area of the display panel 110 may be viewed toward the center area of the display panel 110 from the center point 10 of the circle, which is a preset reference position. It is equal to the length of the straight line distance between the gaze direction 1 and the set viewing position 20.

On the other hand, the right viewing angle 210 may be calculated through the following equation.

The left viewing angle 220 may be calculated through the following equation.

Here, D is the viewing distance 240, A is the audio-visual 260, h is the horizontal straight line length 270 of the display panel 110, d is the thickness 230 of the display panel 110, a is the curvature Angle 250 is shown.

On the other hand, the curvature angle 250, a, is a line of sight 3 facing the left end of the display panel 110 at the preset reference position 10 and the right side of the display panel 110 at the preset reference position 10. An angle formed by the line of sight 2 facing the end, and the curvature angle 250 may be calculated through the following equation.

Here, H means the actual horizontal length of the display panel 110. That is, the actual horizontal length of the curved display panel 110 is equal to the length of the arc which is a part of the circle having the center point as the preset reference position 10.

In addition, R denotes a radius of a circle having the predetermined reference position 10 as a center point, which is equal to the distance from the preset reference position 10 to the display panel 110. It is also equal to the radius of curvature.

The curvature angle 250 may be calculated by expressing a value obtained by dividing the actual horizontal length of the display panel 110 by the radius of curvature by rad, that is, by the arc method.

Meanwhile, d, the thickness 230 of the display panel 110, may be calculated through the following equation.

Using the curvature angle 250 and the radius of curvature R obtained in Equation 4, the thickness 230 of the display panel 110 may be obtained through Equation 5 above.

In addition, h, which is a straight line distance 270 in the horizontal direction of the display panel 110, may be calculated through the following equation.

Here, the horizontal distance 270 in the horizontal direction of the display panel 110 refers to the linear distance between the left and right ends of the display panel 110 and is different from the actual horizontal length of the display panel 110 described above.

Through Equations 2 and 3, the right viewing angle and the left viewing angle at the viewing position may be calculated, and the calculated difference between the right viewing angle and the left viewing angle may be calculated.

Referring back to FIG. 31, the calculating step S3110 repeatedly calculates the difference between the right viewing angle and the left viewing angle at each viewing position while changing the viewing position for each curvature of the display panel 110.

In addition, the method of designing a display panel according to an exemplary embodiment includes setting the curvature of the display panel 110 based on the plurality of difference values calculated in the calculation step S3110.

Here, the set curvature of the display panel 110 refers to a curvature capable of minimizing the viewing angle distortion.

Meanwhile, in setting the curvature of the display panel (S3120), the curvature of the display panel may be set based on the curvature range and the viewing distance range where the difference value is minimum. This will be described with reference to FIGS. 4 to 7.

4 to 7 are tables and graphs showing the difference values of the right viewing angle and the left viewing angle at each viewing position while changing viewing positions for each curvature of the display panel according to an exemplary embodiment of the present invention.

Referring to FIG. 4, it can be seen that the difference between the right and left viewing angles calculated by assuming that the display panel 110 is 55 inches and the curvature is 3000R is summarized.

Specifically, H is the actual horizontal length of the display panel 110, A is the audio visual angle 260, D is the viewing distance 240, R is the curvature or radius of curvature (1, 2, 3), a is the angle of curvature 250 ), d denotes a thickness 230 of the display panel 110, h denotes a linear distance 270 in the horizontal direction of the display panel 110, ① (410) is the right viewing angle (210), ② (420) Denotes the left viewing angle 220, and the deviation 430 refers to the difference between the right viewing angle 210 and the left viewing angle 220, which are the difference between the ① 410 and the ② 420.

FIG. 5 is a diagram illustrating a table in which difference values between right and left viewing angles calculated based on a case in which the size of the display panel 110 is 55 inches and the curvature is 4000R, and FIG. 6 is a display panel ( 110 is a table showing the difference values of the right viewing angle and the left viewing angle calculated assuming a size of 55 inches and a curvature of 5000R.

FIG. 7 is a graph illustrating a graph showing difference values of the right viewing angle 210 and the left viewing angle 220 calculated for each curvature and viewing distance when the curvatures shown in FIGS. 4 to 6 are 3000R, 4000R, and 5000R. .

Here, the horizontal axis represents the viewing distance, and the vertical axis represents the magnitude of the difference value.

In setting the curvature of the display panel (S3120), the curvature of the display panel may be set based on a curvature range and a viewing distance range in which the difference value is minimum, for example, in a viewing range of 2600 mm to 4000 mm. Since the curvature at which the difference value is the minimum is 4000R, in designing the display panel 110 having a curvature for minimizing the distortion of the viewing angle in a viewing range of 2600mm to 4000mm, the curvature of the display panel 110 is set to 4000R. Can be set.

In addition, since the curvature at which the difference value is the minimum is 3000R in the range of viewing distance of 1000 mm to 2600 mm, in designing the display panel 110 having curvature for minimizing distortion of the viewing angle in the range of viewing distance of 1000 mm to 2600 mm. The curvature of the display panel 110 may be set to 3000R.

In addition, since the curvature that the difference value is the minimum in the range of viewing distance is 4000mm to 5000mm is 5000R, in designing the display panel 110 having the curvature to minimize the distortion of the viewing angle in the range of viewing distance is 4000mm to 5000mm. The curvature of the display panel 110 may be set to 5000R.

As described above, in setting the curvature of the display panel (S3120), the curvature of the display panel 110 may be set as the optimum curvature such that the difference between the right and left viewing angles is minimized in the desired viewing distance range.

In addition, in the above-described embodiment, the curvature of the display panel 110 based on the difference between the right viewing angle 210 and the left viewing angle 220 calculated while changing the viewing distance, that is, the vertical distance of the display panel 110 and the viewer. Although it is described that the calculation is performed, the difference between the right viewing angle 210 and the left viewing angle 220 calculated while changing the horizontal length 280 from the set viewing position 20 to the center area of the display panel 110 is determined. The curvature of the display panel 110 may be calculated based on the above.

Also, based on the difference between the right viewing angle 210 and the left viewing angle 220 calculated while changing both the viewing distance and the horizontal length 280 from the set viewing position 20 to the center area of the display panel 110. The curvature of the display panel 110 may be calculated. Accordingly, the right viewing angle 210 and the left viewing angle 220 for each viewing position are calculated regardless of which direction the set viewing position 20 changes and where it is located, and the calculated right viewing angle 210 and the left side are calculated. The curvature of the display panel 110 may be calculated based on the difference value of the viewing angles 220.

According to another exemplary embodiment, in setting the curvature of the display panel (S3120), the sum of the difference values calculated for the plurality of viewing positions is calculated for each curvature, and the curvature at which the sum of the difference values is minimum is displayed. Can be set to the curvature of the panel.

That is, when a plurality of viewers are watching at the plurality of viewing positions, setting the curvature of the display panel in order to minimize the distortion of the viewing angle at the plurality of viewing positions (S3120), the calculated difference for the plurality of viewing positions By calculating the sum of the values for each curvature, the curvature for minimizing the sum of the difference values is set as the optimum curvature of the display panel. Accordingly, the distortion of the viewing angle at the plurality of viewing positions existing in the preset area may be minimized. The calculating process will be described in detail with reference to FIGS. 8 to 30.

8 to 30 are tables and graphs showing the sum of difference values calculated for a plurality of viewing positions for each curvature of a display panel according to another exemplary embodiment.

Referring to FIG. 8, when the size of the display panel 110 is 55 inches and the curvature is 3000 R, the difference between the right viewing angle and the left viewing angle calculated by changing the viewing distance from 3000 mm to 4000 mm and the difference in each viewing distance You can see that the sum of the values is summarized.

Specifically, since H, A, D, R, a, d, h, ① and ② have been described in FIG. 4, detailed descriptions thereof will be omitted. However, s means the horizontal length 280 from the set viewing position 20 of FIG. 3 to the center area of the display panel 110. In FIG. 8, it can be seen that s is set to 1500 mm.

8, when the size of the display panel 110 is 55 inches and the curvature is 3000 R, the sum 810 of the difference values at each viewing distance calculated while changing the viewing distance from 3000 mm to 4000 mm is It can be seen that 70.

FIG. 9 illustrates that when the size of the display panel 110 is 55 inches and the curvature is 3100R, the difference between the right viewing angle and the left viewing angle calculated by changing the viewing distance from 3000 mm to 4000 mm and the sum of the difference values at each viewing distance. It is a figure which shows this summarized table. 9, it can be seen that the sum of difference values at each viewing distance is 61.

Similarly, FIGS. 10 to 28 show that the display panel 110 has a size of 55 inches and curvatures of 3200R, 3300R, 3400R, 3500R, 3600R, 3700R, 3800R, 3900R, 4000R, 4100R, 4200R, 4300R, 4400R, 4500R, In the case of 4600R, 4700R, 4800R, 4900R, and 5000R, a table showing a sum of difference values between right and left viewing angles calculated from changing viewing distances from 3000mm to 4000mm and the differences in viewing distances, respectively. .

And, FIG. 29 is a table summarizing the sum of difference values between the right viewing angle and the left viewing angle calculated for each curvature by changing the viewing distance from 3000 mm to 4000 mm. Then, the sum of the difference values for each curvature is shown in FIG. 30.

Referring to FIG. 30, the horizontal axis represents the curvature of the display panel 110, and the vertical axis represents the sum of difference values.

Therefore, when the viewing distance ranges from 3000mm to 4000mm, it can be seen that the curvature at which the sum of the difference values becomes the minimum is 4100R or 4200R. That is, when the viewing distance ranges from 3000 mm to 4000 mm, it can be seen that the curvature that can minimize the viewing angle distortion at the plurality of viewing positions is 4100R or 4200R.

Accordingly, setting the curvature of the display panel (S3120) may be set to 4100R or 4200R as the optimal curvature of the display panel 110.

8 to 30, the step of setting the curvature of the display panel (S3120) has been described as calculating the sum of the difference values, but is not limited to calculating the sum of the difference values. The calculation may be performed or the optimum curvature may be set by calculating the standard deviation.

8 to 30, the sum of difference values between the right viewing angle 210 and the left viewing angle 220 calculated while changing the viewing distance, that is, the vertical distance between the display panel 110 and the viewer, is based on the sum of difference values. Although calculating the curvature of the display panel 110 has been described, the right viewing angle 210 and the left calculated while changing the horizontal length 280 from the set viewing position 20 to the center area of the display panel 110 are described. The curvature of the display panel 110 may be calculated based on the sum of the difference values of the viewing angles 220.

In addition, the sum of difference values between the right viewing angle 210 and the left viewing angle 220 calculated while changing both the viewing distance and the horizontal length 280 from the set viewing position 20 to the center area of the display panel 110. The curvature of the display panel 110 may be calculated based on the. Accordingly, the right viewing angle 210 and the left viewing angle 220 for each viewing position 20 are calculated regardless of which direction the set viewing position 20 changes and where it is located, and the calculated right viewing angle 210 is calculated. And the curvature of the display panel 110 based on the sum of the difference values of the left viewing angle 220.

On the other hand, according to another embodiment, the step of setting the curvature of the display panel (S3120) calculates the difference between the right viewing angle and the left viewing angle at a particular viewing position for the flat panel display panel, the specific viewing for the curved display panel After calculating the difference value between the right viewing angle and the left viewing angle at the position, the difference between the right viewing angle and the left viewing angle at the specific viewing position for the flat panel display panel and the right viewing angle and the left viewing angle at the specific viewing position for the curved display panel The difference value of the difference value of may be calculated, and the curvature of the display panel may be set based on the difference value.

In other words, setting the curvature of the display panel (S3120) may include a difference between a right viewing angle and a left viewing angle at a specific viewing position with respect to the flat panel display panel, and a difference between a right viewing angle and a left viewing angle at a particular viewing position with respect to the curved display panel. The curvature of the curved display panel when the difference between the values is maximum can be set as the optimum curvature.

Accordingly, the display panel having an optimal curvature capable of minimizing the viewing angle distortion at each viewing position of at least one viewer may be designed and manufactured by the above-described display panel design method. The display panel is similar to that shown in FIG. 1.

On the other hand, the storage medium according to an embodiment of the present invention stores a program for designing a display panel.

Here, the program for designing the display panel may calculate the curvature of the display panel based on the step of repeatedly calculating the difference value between the right viewing angle and the left viewing angle at each viewing position while changing the viewing position for each curvature of the display panel. The setting step may be performed sequentially.

In the setting of the curvature of the display panel, the curvature of the display panel may be set based on the curvature range and the viewing distance range where the difference value is minimum. Here, in the setting of the curvature of the display panel, the contents described above with reference to FIGS. 4 to 7 may be applied in the same manner.

The setting of the curvature of the display panel may include calculating the sum of the difference values calculated for the plurality of viewing positions for each curvature and setting the curvature of the display panel to be the minimum. Here, in the setting of the curvature of the display panel, the above-described contents described with reference to FIGS. 8 to 30 may be applied in the same manner.

32 is a flowchart illustrating a method of setting a curvature of a display panel according to an exemplary embodiment.

According to the method illustrated in FIG. 32, the difference between the right viewing angle and the left viewing angle at each viewing position may be repeatedly calculated while changing the viewing position for each curvature of the display panel (S3210).

Thereafter, the curvature of the display panel may be set based on the curvature range and the viewing distance range in which the difference value is the minimum (S3220).

33 is a flowchart for explaining a method of setting a curvature of a display panel according to another exemplary embodiment.

According to the method illustrated in FIG. 33, the difference between the right viewing angle and the left viewing angle at each viewing position may be repeatedly calculated while changing the viewing position for each curvature of the display panel (S3310).

Thereafter, the sum of the difference values calculated for the plurality of viewing positions may be calculated for each curvature, and the curvature of which the sum of the difference values is minimum may be set as the curvature of the display panel (S3320).

Meanwhile, the display apparatus 100 according to an exemplary embodiment may include a sensor unit (not shown) that detects a viewer's viewing position and the number of viewers, a viewing position detected by the sensor unit (not shown), and the number of viewers. A control unit (not shown) for calculating a curvature on the basis and a driving unit (not shown) for changing the curvature of the display panel based on the calculated curvature.

The controller (not shown) repeatedly calculates a difference value between the right viewing angle and the left viewing angle at each viewing position based on the detected viewer's viewing position and the number of viewers, and calculates a curvature based on the calculated difference value. can do.

Specifically, the controller (not shown) may set the curvature at which the difference value is the minimum as the curvature of the display panel, or set the curvature at which the sum of the difference values calculated for the plurality of viewing positions is the minimum as the curvature of the display panel. It may be.

The driver (not shown) may drive at least one curvature variable unit (not shown) provided in the display panel so as to correspond to the curvature calculated by the controller (not shown).

Meanwhile, a non-transitory computer readable medium may be provided in which a program for sequentially performing a control method according to the present invention is stored.

For example, the step of setting the curvature of the display panel based on the calculation step and repeatedly calculating the difference between the right and left viewing angle at each viewing position while changing the viewing position for each curvature of the display panel A non-transitory computer readable medium in which a program is stored may be provided.

A non-transitory readable medium refers to a medium that stores data semi-permanently and is read by a device, not a medium storing data for a short time such as a register, a cache, a memory, and the like. Specifically, the various applications or programs described above may be stored and provided in a non-transitory readable medium such as a CD, a DVD, a hard disk, a Blu-ray disk, a USB, a memory card, a ROM, or the like.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the above-described specific embodiment, the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

110: display panel 210: right viewing angle
220: left viewing angle

Claims (11)

In the design method of the display panel,
A calculation step of repeatedly calculating a difference value between the right viewing angle and the left viewing angle at each viewing position while changing the viewing position for each curvature of the display panel; And
Setting a curvature of the display panel based on the difference value;
Setting the curvature of the display panel,
And calculating a sum of difference values calculated for a plurality of viewing positions for each curvature, and setting a curvature of which the sum of the difference values is minimum to the curvature of the display panel. The method of claim 1,
Setting the curvature of the display panel,
And a curvature of the display panel based on a curvature range and a viewing distance range in which the difference value is minimum. delete The method of claim 1,
The calculating step,
Setting a curvature of the display panel to a first curvature;
Setting a viewing position with respect to the display panel having the first curvature and calculating a difference value between a right view angle and a left view angle at the set viewing position, and storing the result of the execution;
Setting a curvature of the display panel to a second curvature; And
Setting a viewing position with respect to the display panel having the second curvature, calculating a difference value between the right viewing angle and the left viewing angle in the set viewing, and storing the results of the performing; Design method comprising the. The method of claim 4, wherein
Computing the difference between the right viewing angle and the left viewing angle at the viewing position,
The first viewing direction looking at the center area of the display panel at a preset reference position and the second viewing direction looking at the center area of the display panel at the set viewing position are compared to determine the audio visual angle at the set viewing position. Calculating process;
Calculating a viewing distance in which the plane in which the center area is located and the set viewing position are vertically connected in a straight line;
Calculating a right viewing angle and a left viewing angle at the set viewing position using the audiovisual angle and the viewing distance, respectively; And
And calculating and storing a difference value between the right viewing angle and the left viewing angle. The method of claim 5,
The audio visual design is calculated through the following equation.

Here, S is the horizontal length from the set viewing position to the center area of the display panel, and D represents the viewing distance. The method of claim 1,
The right viewing angle is,

It is calculated through the following equation,
The left viewing angle is,

It is calculated through the equation, wherein D is the viewing distance, A is the audiovisual angle, h is the horizontal straight line length of the display panel, d is the thickness of the display panel, a is a curvature angle. A display panel designed and manufactured by the design method according to any one of claims 1, 2, and 4-7. In a computer-readable recording medium for storing a program for designing a display panel,
The program,
A calculation step of repeatedly calculating a difference value between the right viewing angle and the left viewing angle at each viewing position while changing the viewing position for each curvature of the display panel; And
And setting the curvature of the display panel based on the difference value. The method of claim 9,
Setting the curvature of the display panel,
And a curvature of the display panel based on a curvature range and a viewing distance range in which the difference value is minimum. The method of claim 9,
Setting the curvature of the display panel,
And calculating, for each curvature, a sum of difference values calculated for a plurality of viewing positions, and setting a curvature at which the sum of the difference values is minimum to the curvature of the display panel.

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