Horizontal visual angle measuring device for display

Abstract

The utility model relates to a horizontal visual angle measuring device for a display, and the device comprises a workbench which is used for placing the display; the adjusting assembly comprises a connecting arm, an adjusting rod and a clamping piece, the adjusting rod and the clamping piece are vertically installed on the connecting arm, the connecting arm can drive the adjusting rod and the clamping piece to rotate in the horizontal direction under the action of external force, the brightness meter is driven to rotate, and the adjusting rod can move in the height direction relative to the connecting arm under the action of the external force; the measuring assembly comprises a mounting base mounted above the connecting arm, a protractor and an indicating piece, the protractor can rotate relative to the indicating piece along with the connecting arm so as to show the rotating angle of the connecting arm, and the measuring device is simple and compact in structure, small in occupied space and capable of being suitable for displays of different models and sizes; and the protractor can rotate relative to the indicating piece along with the connecting arm, so that a worker can conveniently indicate the scales on the protractor through the indicating piece to know the rotation angle of the brightness meter, and the measurement precision of the visual angle of the display in the horizontal direction is improved.

Description

Technical Field

[0001] This utility model relates to the field of display system testing technology, and specifically to a horizontal viewing angle measuring device for a display. Background Technology

[0002] With the continuous development of display technology, monitors are being used more and more widely in various fields. For example, in medical imaging departments, monitors have replaced film as the main tool for image diagnosis. Monitors, represented by LCD screens, constitute the current mainstream medical image diagnosis display system. Their quality directly affects the results and efficiency of image diagnosis, and the viewing angle of the monitor is an important reference indicator affecting quality.

[0003] For measuring viewing angles, display device manufacturers typically use fixed optical inspection equipment during the manufacturing process. This equipment is complex in structure, making it difficult to quickly and accurately adjust the measurement position and angle, resulting in poor flexibility.

[0004] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Utility Model Content

[0005] In view of this, embodiments of this application provide a horizontal viewing angle measuring device for a display to solve at least one problem existing in the prior art, comprising:

[0006] The workbench includes a base plate, an extension plate connected to the base plate along a first direction, a support frame disposed above the base plate, and a work plate located above the support frame, the work plate being used to place a monitor.

[0007] The movable component includes a slide rail fixed to the base plate and the extension plate and a movable frame capable of moving along the slide rail;

[0008] The adjustment assembly includes a connecting plate mounted on the movable frame, a connecting arm coaxially connected to the connecting plate, an adjusting rod vertically mounted on the connecting arm, and a clamping member connected to the adjusting rod. The connecting arm can drive the adjusting rod and the clamping member to rotate in the horizontal direction under the action of an external force, so as to drive the luminance meter on the clamping member to rotate. The adjusting rod can move in the height direction relative to the connecting arm under the action of an external force, so as to adjust the height of the luminance meter relative to the display.

[0009] The measuring assembly includes a mounting base mounted above the connecting arm, a protractor connected to the connecting base, and an indicator. A connecting shaft passes sequentially through the indicator, the protractor, the mounting base, and the connecting arm. The protractor is capable of rotating with the connecting arm relative to the indicator to indicate the rotation angle of the connecting arm.

[0010] Optionally, in the above-described horizontal viewing angle measuring device for a display, the mounting base is further provided with at least two suction elements, and the protractor is provided with at least two magnetic suction elements that cooperate with the suction elements.

[0011] Optionally, in the above-described horizontal viewing angle measuring device for a display, the mounting base is provided with a slot adapted to the protractor, and the protractor is adapted to be installed in the slot.

[0012] Optionally, in the above-described horizontal viewing angle measuring device for a display, the movable frame is further provided with a limiting member, which is located at the end away from the adjusting rod;

[0013] The indicator includes a connecting end and an indicating end disposed opposite to each other. The indicating end is adapted to indicate the scale of the protractor, and the connecting end is limited by the limiting member.

[0014] Optionally, in the above-described horizontal viewing angle measuring device for a display, the limiting member is further provided with a guide groove, and the indicating end is adapted to be inserted into the guide groove.

[0015] Optionally, in the above-described horizontal viewing angle measuring device for a display, the connecting arm is provided with a plurality of sets of mounting holes along a first direction, and the adjusting rod is detachably connected to the plurality of sets of mounting holes.

[0016] Optionally, in the above-described horizontal viewing angle measuring device for a display, the clamping member includes a first clamping part and a second clamping part disposed opposite to each other, and both the first clamping part and the second clamping part are provided with an arc-shaped clamping surface.

[0017] Optionally, in the above-described horizontal viewing angle measuring device for a display, the working plate includes a first side and a second side disposed opposite to each other, with the first side disposed close to the adjustment component;

[0018] A clearance opening is provided on the first side. The adjustment component can move relative to the working plate under the action of the moving component to have a receiving state and a working state. When the adjustment component is in the receiving state, the adjustment rod passes through the clearance opening.

[0019] Compared with the prior art, this application has the following advantages: By providing a slide rail and a movable frame, as well as a connecting arm and an adjusting rod, mounted on the base plate and extension plate, the luminance meter installed on the clamping member can move closer to or further away from the display on the work plate under the action of the slide rail and the movable frame to adjust the position of the clamping member relative to the display in the first direction. The connecting arm can be rotated horizontally by external force to adjust the angle of the luminance meter relative to the center of the display. The adjusting rod can adjust the height of the luminance meter relative to the display, thereby realizing the measurement of the display's viewing angle. This measuring device has a simple and compact structure, occupies little space, has low manufacturing cost, and can be applied to displays of different models and sizes. Furthermore, by providing a mounting base, a protractor connected to the mounting base, and an indicator, and by having the protractor rotate with the connecting arm relative to the indicator, the operator can easily know the rotation angle of the luminance meter by indicating the scale on the protractor through the indicator, thus improving the measurement accuracy of the display's horizontal viewing angle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the horizontal viewing angle measuring device for a display shown in this embodiment;

[0021] Figure 2 for Figure 1 A partial structural diagram;

[0022] Figure 3 for Figure 1 The diagram shown is a structural schematic of the horizontal viewing angle measuring device for the display from another direction.

[0023] Figure label:

[0024] 1-Workbench, 11-Base plate, 12-Extension plate, 13-Support frame, 14-Work plate, 141-First side, 1411-Clearing opening, 142-Second side;

[0025] 2-Moving component, 21-Slide rail, 22-Moving frame, 221-Limiting component, 222-Guide groove;

[0026] 3-Adjustment component, 31-Connecting plate, 32-Connecting arm, 321-Mounting hole, 33-Adjusting rod, 34-Clamping component, 341-First clamping part, 342-Second clamping part;

[0027] 4-Measuring component, 41-Mounting base, 411-Adsorption element, 412-Slot, 42-Protractor, 43-Indicator, 431-Connecting end, 432-Indicating end. Detailed Implementation

[0028] The exemplary embodiments disclosed in this application will now be described in more detail. Numerous specific details are set forth in the following description to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without one or more of these details. In other instances, to avoid confusion with this application, some technical features well-known in the art have not been described; that is, not all features of actual embodiments are described herein, nor are well-known functions and structures described in detail.

[0029] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this application, the first element, component, area, layer, or portion discussed below may be referred to as a second element, component, area, layer, or portion. And the discussion of a second element, component, area, layer, or portion does not imply that the first element, component, area, layer, or portion necessarily exists in this application.

[0030] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used here for convenience to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of devices in use and operation.

[0031] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. When used herein, the singular forms “a,” “an,” and “ / the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “compose” and / or “comprising,” when used in this specification, identify the presence of features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0032] To fully understand this application, detailed steps and structures will be presented in the following description to illustrate the technical solution of this application. Preferred embodiments of this application are described in detail below; however, in addition to these detailed descriptions, this application may have other implementation methods.

[0033] Please refer to Figures 1-3 As shown in the preferred embodiment of this application, a horizontal viewing angle measuring device for a display is provided to measure the viewing angle of the display in order to ensure the display quality of the display, thereby improving the diagnostic results and efficiency of the medical image diagnostic display system.

[0034] The horizontal viewing angle measuring device includes a worktable 1, a moving component 2, an adjusting component 3, and a measuring component 4. The worktable 1 includes a base plate 11, an extension plate 12 connected to the base plate 11 along a first direction, a support frame 13 disposed above the base plate 11, and a work plate 14 located above the support frame 13. The work plate 14 is used to place a display. The moving assembly 2 includes a slide rail 21 fixed on the base plate 11 and the extension plate 12, and a moving frame 22 that can move along the slide rail 21; the adjusting assembly 3 includes a connecting plate 31 mounted on the moving frame 22, a connecting arm 32 coaxially connected to the connecting plate 31, an adjusting rod 33 vertically mounted on the connecting arm 32, and a clamping member 34 connected to the adjusting rod 33. The connecting arm 32 can drive the adjusting rod 33 and the clamping member 34 to rotate in the horizontal direction under the action of external force, so as to drive the luminance meter on the clamping member 34 to rotate. The adjusting rod 33 can move in the height direction relative to the connecting arm 32 under the action of external force, so as to adjust the height of the luminance meter relative to the display; the measuring assembly 4 includes a mounting base 41 mounted above the connecting arm 32, a protractor 42 connected to the mounting base 41, and an indicator 43. The connecting shaft passes through the indicator 43, the protractor 42, the mounting base 41, and the connecting arm 32 in sequence. The protractor 42 can follow the connecting arm 32 to rotate relative to the indicator 43, so as to indicate the rotation angle of the connecting arm 32.

[0035] Understandably, by integrally connecting the base plate 11 and the extension plate 12, and with the slide rail 21 positioned above the base plate 11 and the extension plate 12, the stability of the entire device can be ensured.

[0036] Understandably, by setting up the slide rail 21 and the movable frame 22 that can move along the slide rail 21, the adjustment component 3 and the measuring component 4 can be moved closer to or further away from the work plate 14 to adjust the distance of the luminance meter relative to the display in the first direction.

[0037] Understandably, by setting up the connecting arm 32 and the adjusting rod 33, the angle and height of the luminance meter relative to the display in the horizontal direction can be adjusted respectively, which can accurately align it with the display and improve measurement accuracy and flexibility.

[0038] Understandably, by setting a protractor 42 and an indicator 43 that can rotate with the connecting arm 32, the rotation angle of the luminance meter driven by the connecting arm 32 can be shown by the indicator 43, thereby further improving the measurement accuracy.

[0039] Specifically, the mounting base 41 is provided with at least two adsorption elements 411, and the protractor 42 is provided with at least two magnetic elements that cooperate with the adsorption elements 411, so that the protractor 42 can be stably connected to the mounting base 41, preventing the protractor 42 from shifting during the rotation of the connecting arm 32 and ensuring measurement accuracy. It should be noted that in this embodiment, the adsorption element 411 is a magnet provided on the mounting base 41, and the metal protractor 42 serves as a magnetic element to achieve fixed attraction of the protractor 42.

[0040] More specifically, the mounting base 41 is provided with a slot 412 that is compatible with the protractor 42. The protractor 42 is suitable for installation in the slot 412, which further makes the installation of the protractor 42 more stable and less prone to loosening, ensuring that the relative position of the protractor 42 and the mounting base 41 is stable during the measurement process and improving the measurement accuracy.

[0041] In this embodiment, the movable frame 22 is also provided with a limiting member 221, which is located at the end away from the adjusting rod 33. The indicator 43 includes a connecting end 431 and an indicating end 432 disposed opposite to each other. The indicating end 432 is adapted to indicate the scale of the protractor 42. The connecting end 431 is limited by the limiting member 221 to prevent the pointer from shaking or slipping during the measurement process, which would cause the final angle shown by the indicating end 432 on the protractor 42 to be incorrect. It is worth noting that in this embodiment, the limiting member 221 is also provided with a guide groove 222, and the indicating end 432 is adapted to be inserted into the guide groove 222. This not only facilitates fixing the indicator 43 to the limiting member 221, but also further improves the limiting effect.

[0042] As described above, in this embodiment, the connecting arm 32 is provided with a plurality of sets of mounting holes 321 along the first direction, and the adjusting rod 33 is detachably connected to the plurality of sets of mounting holes 321, so that the adjusting rod 33 can be adjusted to the installation position according to actual needs, adapt to different measurement scenarios and display sizes, and improve the versatility of the device.

[0043] In this embodiment, the clamping member 34 includes a first clamping part 341 and a second clamping part 342 disposed opposite to each other. Both the first clamping part 341 and the second clamping part 342 are provided with arc-shaped clamping surfaces, which can better fix the luminance meter and prevent the luminance meter from shaking or falling during the measurement process, thus ensuring the stability and accuracy of the measurement.

[0044] The working plate 14 also includes a first side 141 and a second side 142 arranged opposite to each other. The first side 141 is located close to the adjusting component 3. A clearance opening 1411 is provided on the first side 141. The adjusting component 3 can move relative to the working plate 14 under the action of the moving component 2 to have a receiving state and a working state. When the adjusting component 3 is in the receiving state, the adjusting rod 33 is arranged through the clearance opening 1411. It can also be understood that when the measuring device needs to be used, the measuring component 4 and the adjusting component 3 can be moved away from the working plate 14 by the moving component 2. At this time, the adjusting rod 33 moves out of the clearance opening 1411 to perform the measurement work. When the measuring device is not needed, the measuring component 4 and the adjusting component 3 can be moved closer to the working plate 14 by the moving component 2. At this time, the adjusting rod 33 moves into the clearance opening 1411 to realize the receiving of the adjusting rod 33, thereby reducing the space occupied by the entire measuring device in the receiving state.

[0045] In summary, the working process of the horizontal viewing angle measurement device in this embodiment is as follows: During testing, the display to be tested is placed on the work plate. The adjustment component and the measurement component are adjusted to a suitable distance from the display by moving the component. Then, the luminance meter is adjusted to the center position of the vertical height of the display screen by adjusting the lever. The connecting arm is rotated so that the luminance meter is located at the center position of the display screen in the horizontal direction. At this time, the indicator is calibrated so that the indicator end of the indicator points to the "0" mark. The display brightness value is set to 60% of the maximum brightness value. The luminance meter is vertically aligned with the center of the screen as the starting position, recorded as 0°. The luminance meter deflects horizontally from the starting position with the center of the display screen as the center. During this process, the luminance meter records a set of data at 1° intervals. During the rotation, the luminance meter is always aligned with the center position of the screen. At each sampling point, the display shows white field and black field images (such as the 255th level and the 0th level image in a 256 grayscale image). After each test image stabilizes, the corresponding brightness measurement value is recorded, and the viewing angle is calculated by the corresponding formula (a relatively mature technology in this field).

[0046] The above is only one specific implementation of this application, and any other improvements made based on the concept of this application shall be considered within the scope of protection of this application.

Claims

1. A device for measuring the horizontal viewing angle of a display, characterized in that, include: The workbench includes a base plate, an extension plate connected to the base plate along a first direction, a support frame disposed above the base plate, and a work plate located above the support frame, the work plate being used to place a monitor. The movable component includes a slide rail fixed to the base plate and the extension plate and a movable frame capable of moving along the slide rail; The adjustment assembly includes a connecting plate mounted on the movable frame, a connecting arm coaxially connected to the connecting plate, an adjusting rod vertically mounted on the connecting arm, and a clamping member connected to the adjusting rod. The connecting arm can drive the adjusting rod and the clamping member to rotate in the horizontal direction under the action of an external force, so as to drive the luminance meter on the clamping member to rotate. The adjusting rod can move in the height direction relative to the connecting arm under the action of an external force, so as to adjust the height of the luminance meter relative to the display. The measuring assembly includes a mounting base mounted above the connecting arm, a protractor connected to the mounting base, and an indicator. A connecting shaft passes sequentially through the indicator, the protractor, the mounting base, and the connecting arm. The protractor is capable of rotating with the connecting arm relative to the indicator to indicate the rotation angle of the connecting arm.

2. The horizontal viewing angle measuring device for a display according to claim 1, characterized in that, The mounting base is also provided with at least two adsorption components, and the protractor is provided with at least two magnetic components that cooperate with the adsorption components.

3. The horizontal viewing angle measuring device for a display according to claim 1, characterized in that, The mounting base is provided with a slot adapted to the protractor, and the protractor is adapted to be installed in the slot.

4. The horizontal viewing angle measuring device for a display according to claim 1, characterized in that, The movable frame is also provided with a limiting component, which is located at the end away from the adjusting rod. The indicator includes a connecting end and an indicating end disposed opposite to each other. The indicating end is adapted to indicate the scale of the protractor, and the connecting end is limited by the limiting member.

5. The horizontal viewing angle measuring device for a display according to claim 4, characterized in that, The limiting member is also provided with a guide groove, and the indicating end is adapted to be inserted into the guide groove.

6. The horizontal viewing angle measuring device for a display according to claim 1, characterized in that, The connecting arm is provided with a number of sets of mounting holes along the first direction, and the adjusting rod is detachably connected to the number of sets of mounting holes.

7. The horizontal viewing angle measuring device for a display according to claim 2, characterized in that, The clamping member includes a first clamping part and a second clamping part disposed opposite to each other, and both the first clamping part and the second clamping part are provided with an arc-shaped clamping surface.

8. The horizontal viewing angle measuring device for a display according to any one of claims 1-7, characterized in that, The working plate includes a first side and a second side disposed opposite to each other, with the first side disposed close to the adjustment component; A clearance opening is provided on the first side. The adjustment component can move relative to the working plate under the action of the moving component to have a receiving state and a working state. When the adjustment component is in the receiving state, the adjustment rod passes through the clearance opening.

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