GB21520-based tool for measuring horizontal visual angle of display

Abstract

The utility model discloses a GB21520-based tool for measuring the horizontal visual angle of a display, which comprises a disc base, a rotating disc, a gradienter and a laser locator, the rotating disc is rotatably arranged on the disc base, a circle of angle scales are arranged on the disc base around the outer side edge of the rotating disc, and the laser locator is arranged on the disc base. Two vertically-intersected marking lines are arranged on the rotating disc, the intersection point of the two marking lines coincides with the center of the rotating disc, the laser positioning instrument is arranged at one end of one marking line, and positioning light rays emitted by the laser positioning instrument coincide with the marking line where the laser positioning instrument is located and extend out of the outer edge of the rotating disc. And the gradienter is arranged on the rotating disc. The device is simple to operate, and the accuracy of a measurement result can be better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of display horizontal viewing angle measurement, in particular to a tool for display horizontal viewing angle measurement based on GB21520. Background Art

[0002] In the context of promoting the green development of the display industry, the implementation of the G21520 standard will help regulate the market order, prevent low-quality, high-energy-consuming products from flooding the market, and protect the legitimate rights and interests of consumers. Secondly, the standard will encourage companies to increase their technological research and development efforts, improve the energy efficiency and environmental performance of displays, and promote technological progress in the industry. Finally, the standard will also help reduce energy consumption and environmental pollution, and contribute to the realization of green and sustainable development.

[0003] GB 21520 "Energy Efficiency Limits and Energy Efficiency Grades for Displays" specifies the measurement methods for the horizontal viewing angle, vertical viewing angle and horizontal field of view of displays, and specifies the requirements for measuring instruments, measurement conditions, measurement process and measurement result processing.

[0004] Among them, the measurement of the horizontal viewing angle of the display is an important part. The traditional method of measuring the horizontal viewing angle of the display is: place the display on a fixed test bench, and arrange corresponding measuring instruments in front of the display, such as a brightness meter, etc. The measuring instrument is used to detect the brightness and color performance of the display at different horizontal viewing angles. Before the test starts, it is necessary to mark the initial position of the display before it is rotated on the test bench. During the test, when the display is rotated, the position of the display after rotation needs to be marked, and then the rotation angle of the display is measured by a protractor.

[0005] The above-mentioned traditional method for measuring the horizontal viewing angle of a display has the following disadvantages:

[0006] 1. The position of the display needs to be marked multiple times, and the rotation adjustment of the display is inconvenient. The rotation angle needs to be measured by a protractor after each rotation, resulting in low efficiency and long time spent on measuring the horizontal viewing angle of the display;

[0007] 2. The rotation of the display will inevitably produce a small offset, resulting in unstable test data;

[0008] 3. Errors in the marking position and the measurement errors of the protractor will lead to unstable test data. Utility Model Content

[0009] The utility model aims to provide a tool for measuring the horizontal viewing angle of a display based on GB21520, which is simple to operate and can better ensure the accuracy of the measurement result.

[0010] The purpose of the utility model is achieved through the following technical solutions:

[0011] A tool for measuring the horizontal viewing angle of a display based on GB21520, characterized in that it includes a disc base, a rotating disc, a spirit level and a laser locator, the rotating disc is rotatably arranged on the disc base, a circle of angle scales is arranged on the disc base around the outer edge of the rotating disc, two vertically intersecting marking lines are arranged on the rotating disc, the intersection of the two marking lines coincides with the center of the rotating disc, the laser locator is arranged at one end of one of the marking lines, the positioning light emitted by the laser locator coincides with the marking line and extends to the outside of the rotating disc, and the spirit level is arranged on the rotating disc.

[0012] Furthermore, the tooling also includes a horizontal adjustment mechanism, which is installed below the disc base and is used to adjust the horizontality of the disc base and the rotating disc.

[0013] Furthermore, the horizontal adjustment mechanism includes at least four lifting adjustment feet, which are installed under the disc base and evenly distributed along the edge of the disc base.

[0014] Further, the level is arranged at a position close to the edge of the rotating disk.

[0015] Furthermore, the disc base is connected to the rotating disc via a rotating shaft.

[0016] Furthermore, the disc base is circular and coincides with the center of the rotating disc.

[0017] Furthermore, the diameter of the disc base is 50 cm and the thickness is 0.75 cm, and the diameter of the rotating disc is 48 cm and the thickness is 0.75 cm.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model can support the display to be measured. During the measurement process, the display placed thereon can be conveniently rotated by rotating the rotating disk. After the rotation, the angle of rotation can be read through the angle scale on the disk base. The operation is simple, and the user can easily operate it without complicated settings or professional skills, so that anyone can use the tool to measure the horizontal viewing angle of the display. Moreover, during the measurement process, the relative position of the display on the rotating disk will not change, and there will be no offset, thereby ensuring the accuracy of the measured data. In addition, the angle scale can be used to read more intuitively and accurately, thereby ensuring the accuracy of the results.

[0020] As long as the size of the disc base and the rotating disc are designed to be large enough, the tooling of the utility model can be adapted to a variety of displays, such as liquid crystal displays, organic light emitting diode (OLED) displays, curved displays, etc., so that the tooling has a wide range of applicability and can be used to assist in measuring the horizontal viewing angles of various displays.

[0021] The rotating disk of the utility model can rotate 360 ​​degrees, and can cover the entire horizontal viewing angle range of the display, so that the performance of the display at various viewing angles can be comprehensively evaluated. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view schematic diagram of the tooling of the embodiment of the utility model;

[0023] Figure 2 It is a front view schematic diagram of the tooling of an embodiment of the utility model;

[0024] Figure 3 It is a flow chart of the use of the tooling of the embodiment of the utility model.

[0025] Meaning of reference numerals in the figure:

[0026] 1-disc base; 2-rotating disc; 3-angle scale; 4-marking line; 5-lifting and adjusting foot; 6-level; 7-laser locator; 8-rotating shaft. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with embodiments.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Example:

[0032] like Figure 1 and Figure 2 The tooling for measuring the horizontal viewing angle of a display based on GB21520 according to this embodiment is shown, which includes a disc base 1, a rotating disc 2, a level 6, a laser locator 7 and a horizontal adjustment mechanism.

[0033] The disc base 1 of this embodiment is circular, with a diameter of 50 cm and a thickness of 0.75 cm, and the rotating disc 2 has a diameter of 48 cm and a thickness of 0.75 cm. The rotating disc 2 is rotatably arranged on the disc base 1, and the disc base 1 and the rotating disc 2 coincide with each other in the center, and are connected at the center by a rotating shaft 8, so that the rotating disc 2 can rotate relative to the disc base 1.

[0034] The disc base 1 and the rotating disc 2 are made of lightweight materials, such as plastic plates, foam plates, wooden plates, alloy plates, etc., which are easy to carry and move. Metal plates, plastic plates, etc. are all recyclable environmentally friendly products. In addition to being easy to carry and move, they also make the manufacturing cost of the tooling relatively low. Large-scale production can further reduce the cost, making it more economical and affordable. At the same time, it is universal and can adapt to product testing of different sizes. Therefore, the tooling is suitable for individual users, small businesses or users with limited budgets, providing an economical and affordable measurement solution.

[0035] A circle of angle scales 3 is arranged around the outer edge of the rotating disc 2 on the disc base 1, and the rotation angle of the rotating disc 2 can be read more intuitively and accurately through the angle scales 3. Two vertically intersecting marking lines 4 are arranged on the rotating disc 2, and the intersection of the two marking lines 4 coincides with the center of the rotating disc 2.

[0036] The level 6 and the laser locator 7 can be selected from products available on the market that are compact in design, small in size, and easy to carry and store. The laser locator 7 is set at one end of one of the marking lines 4, and the positioning light emitted by the laser locator 7 coincides with the marking line 4 and extends to the outside of the rotating disk 2. During the measurement process, the positioning light emitted by the laser locator 7 can be aligned with the center of the external measuring instrument, such as the lens center of the brightness meter, to assist in determining the position of the brightness meter.

[0037] The level meter 6 is arranged on the rotating disk 2 , and the position of the level meter 6 is close to the edge of the rotating disk 2 .

[0038] The horizontal adjustment mechanism is used to adjust the level of the disk base 1 and the rotating disk 2. The horizontal adjustment mechanism of this embodiment includes four lifting adjustment feet 5. The lifting adjustment feet 5 are installed under the disk base 1 and are evenly distributed along the edge of the disk base 1. By adjusting the lifting adjustment feet 5 up and down, the level of the disk base 1 and the rotating disk 2 can be adjusted. The lifting adjustment feet 5 are conventional existing adjustment feet.

[0039] A measurement process of measuring the horizontal viewing angle of the display with the aid of the tooling of this embodiment is as follows:

[0040] 1. Determine the measurement method:

[0041] According to the requirements of GB21520 standard, the requirements for measuring distance, measuring angle and measuring environment in the process of measuring the horizontal viewing angle of the display are determined.

[0042] 2. Calibration:

[0043] Before measuring, the tooling needs to be calibrated to ensure the accuracy and reliability of the measurement results. The tooling uses a level 6 and adjusts the lifting and adjusting feet 5 to calibrate the levelness. At the same time, the brightness and color of the measuring instruments outside the tooling are calibrated to ensure the reliability of the test results.

[0044] 3. Take measurements:

[0045] Place the display steadily at the center of the rotating disk 2 of the tooling, with the front of the display facing the laser locator 7, and the center of the front of the display aligned with the marking line 4 where the laser locator 7 is located. At this time, the light of the laser locator 7 is used to assist in aligning the lens center of the brightness meter outside. Then adjust the horizontal viewing angle of the display according to the standard requirements, and use the measuring instrument to record the brightness and color performance of the display at different horizontal viewing angles.

[0046] 4. Analyze the measurement results:

[0047] The measured data is imported into the data recording and analysis system for data analysis and processing. According to the requirements of GB 21520 standard, the measurement results are evaluated and judged to determine the horizontal viewing angle performance level of the computer display. Figure 3 The general use process of the tooling of this embodiment is illustrated.

[0048] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A tool for measuring the horizontal viewing angle of a display based on GB21520, characterized in that: It includes a disc base, a rotating disc, a level and a laser locator. The rotating disc is rotatably arranged on the disc base. A circle of angle scales is arranged on the disc base around the outer edge of the rotating disc. Two vertically intersecting marking lines are arranged on the rotating disc. The intersection of the two marking lines coincides with the center of the rotating disc. The laser locator is arranged at one end of one of the marking lines. The positioning light emitted by the laser locator coincides with the marking line and extends to the outside of the rotating disc. The level is arranged on the rotating disc.

2. The tooling for measuring horizontal viewing angle of a display based on GB21520 according to claim 1, characterized in that: The tooling also includes a level adjustment mechanism, which is installed below the disc base and is used to adjust the levelness of the disc base and the rotating disc.

3. The tooling for measuring horizontal viewing angle of a display based on GB21520 according to claim 2, characterized in that: The horizontal adjustment mechanism comprises at least four lifting adjustment feet, which are installed under the disc base and evenly distributed along the edge of the disc base.

4. The tooling for measuring horizontal viewing angle of a display based on GB21520 according to claim 1, characterized in that: The level is arranged at a position close to the edge of the rotating disk.

5. The tooling for measuring horizontal viewing angle of a display based on GB21520 according to claim 1, characterized in that: The disc base is connected to the rotating disc via a rotating shaft.

6. The tooling for measuring horizontal viewing angle of a display based on GB21520 according to claim 1, characterized in that: The disc base is circular and coincides with the center of the rotating disc.

7. The tooling for measuring horizontal viewing angle of a display based on GB21520 according to claim 6, characterized in that: The diameter of the disc base is 50 cm and the thickness is 0.75 cm. The diameter of the rotating disc is 48 cm and the thickness is 0.75 cm.

Images