Height measurement device and method

Abstract

The present invention discloses a height measurement device and method. The height measurement device includes a bracket group, multiple measuring probes, a first movable unit, a second movable unit, a coordinate acquisition unit, and a control unit. The bracket group includes at least a first bracket and a second bracket. The measuring probe is used to detect the height information of each measuring point on the color film substrate. The first movable unit is connected to the first bracket and the second bracket, respectively. The second movable unit is disposed on the first bracket and the second bracket and is connected to the measuring probe. The coordinate acquisition unit is used to obtain the plane coordinate information of each measuring point on the color film substrate. The control unit is used to control the first movable unit to drive the first bracket and / or the second bracket to move, and to control the second movable unit to drive the measuring probe to move on the first bracket and / or the second bracket, based on the plane coordinate information. The present invention controls the movement trajectory of the measuring probe based on the plane coordinate information, avoids interference, and improves the efficiency of the measurement work.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, and in particular to a height measurement device and method. Background Art

[0002] Color filter substrates are a crucial component of LCD (liquid crystal) display panels, directly impacting their visual quality. During production, it's necessary to measure key parameters such as the step difference and spacer height of the RGB (red, green, and blue) pixel layers on the color filter substrates. To improve measurement efficiency, multiple height measurement probes are typically used simultaneously. However, when too many probes are used, interference between them can occur, impacting measurement efficiency. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a height measurement device and method, which can improve measurement efficiency.

[0004] To achieve the above object, the present invention first provides a height measuring device, comprising:

[0005] A bracket group, comprising at least a first bracket and a second bracket;

[0006] Multiple measuring probes for detecting the height information of each measuring point on the color film substrate;

[0007] A first moving unit is connected to the first bracket and the second bracket respectively;

[0008] A second mobile unit is provided on the first bracket and the second bracket and is connected to the measuring probe;

[0009] A coordinate acquisition unit, used to obtain the plane coordinate information of each measurement point on the color filter substrate;

[0010] The control unit is used to control the first mobile unit to drive the first bracket and / or the second bracket to move according to the plane coordinate information, and control the second mobile unit to drive the measuring probe to move on the first bracket and / or the second bracket, so that the measuring probe scans each measuring point.

[0011] Optionally, the control unit further includes:

[0012] A sorting unit, used for sorting the measurement points according to the plane coordinate information to obtain sorting information;

[0013] A distribution unit, configured to determine a distribution position diagram of each measurement point on the color filter substrate according to the sorting information;

[0014] A trajectory unit, used to determine the movement trajectory of each measuring probe according to the distribution position map;

[0015] The instruction unit is used to send a movement control instruction to the first mobile unit and the second mobile unit according to the movement trajectory.

[0016] Optionally, the control unit further includes a dividing unit, which is used to divide the moving area of ​​each measuring probe according to the distribution position map, and the trajectory unit is used to determine the moving trajectory of each measuring probe according to the moving area of ​​each measuring probe.

[0017] Optionally, the movement trajectory includes a zigzag pattern or a zigzag pattern.

[0018] Optionally, the moving direction of the measuring probe is perpendicular to the moving directions of the first bracket and the second bracket.

[0019] Optionally, the number of measuring probes on the first bracket is the same as the number of measuring probes on the second bracket.

[0020] Optionally, the distance between two adjacent measuring probes on the first bracket is greater than 350 mm, and the distance between two adjacent measuring probes on the second bracket is greater than 350 mm.

[0021] Optionally, the first bracket and the second bracket are long and parallel to each other, and the distance between the first bracket and the second bracket is greater than 1100 mm.

[0022] The present invention also provides a height measurement method for a height measurement device. The height measurement device includes a bracket group, a plurality of measuring probes for measuring the height of each measuring point on a color filter substrate, a first movable unit, and a second movable unit. The bracket group includes at least a first bracket and a second bracket. The first movable unit is connected to the first bracket and the second bracket, respectively. The second movable unit is arranged on the first bracket and the second bracket and connected to the measuring probe. The method includes:

[0023] Obtaining the plane coordinate information of each measurement point on the color film substrate;

[0024] The first moving unit is controlled to drive the first bracket and / or the second bracket to move according to the plane coordinate information, and the second moving unit is controlled to drive the measuring probe to move on the first bracket and / or the second bracket, so that the measuring probe scans each measuring point.

[0025] Optionally, the step of controlling the first mobile unit to drive the first bracket and / or the second bracket to move according to the plane coordinate information, and controlling the second mobile unit to drive the measuring probe to move on the first bracket and / or the second bracket, further includes:

[0026] Sorting the measurement points according to the plane coordinate information to obtain sorting information;

[0027] Determine a distribution position diagram of each measurement point on the color filter substrate according to the sorting information;

[0028] Determine the moving trajectory of each measuring probe according to the distribution position map;

[0029] According to the movement trajectory, a movement control instruction is sent to the first mobile unit and the second mobile unit.

[0030] Compared with the prior art, the present invention has the following advantages: the height measuring device of the present invention includes a bracket group, multiple measuring probes, a first movable unit, a second movable unit, a coordinate acquisition unit, and a control unit; the bracket group includes at least a first bracket and a second bracket; the measuring probe is used to detect height information of each measuring point on the color filter substrate; the first movable unit is connected to the first bracket and the second bracket respectively; the second movable unit is disposed on the first bracket and the second bracket and is connected to the measuring probe; the coordinate acquisition unit is used to obtain plane coordinate information of each measuring point on the color filter substrate; the control unit is used to control the first movable unit to drive the first bracket and / or the second bracket to move, and control the second movable unit to drive the measuring probe to move on the first bracket and / or the second bracket based on the plane coordinate information, so that the measuring probe scans each measuring point. Thus, the present invention can control the movement trajectory of the measuring probe based on the plane coordinate information of the measuring probe, avoid interference between the measuring probes, save human resources in manually planning the movement trajectory of the measuring probe, avoid the problem of easy errors in manual planning, and improve the efficiency of measurement work. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 1 is a schematic structural diagram of a height measuring device according to an embodiment of the present invention;

[0033] Figure 2 is an architectural diagram of a control unit according to an embodiment of the present invention;

[0034] Figure 3 is a moving trajectory diagram of the measuring probe according to an embodiment of the present invention;

[0035] Figure 4 This is the process of the height measurement method according to the embodiment of the present invention. Figure 1 ;

[0036] Figure 5 This is the process of the height measurement method according to the embodiment of the present invention. Figure 2 . DETAILED DESCRIPTION

[0037] The following descriptions of the various embodiments are with reference to the accompanying drawings to illustrate specific embodiments in which the present invention may be implemented. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the modules or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise specifically defined.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or mutual communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] An embodiment of the present invention provides a height measuring device, such as Figure 1 As shown, it includes a bracket group, multiple measuring probes 3, a first moving unit (not shown), a second moving unit (not shown), a coordinate acquisition unit 4 and a control unit 5.

[0040] Among them, the bracket group includes at least a first bracket 1 and a second bracket 2; a measuring probe 3 is used to detect the height information of each measuring point on the color film substrate CF; a first mobile unit is connected to the first bracket 1 and the second bracket 2 respectively; a second mobile unit is arranged on the first bracket 1 and the second bracket 2, and is connected to the measuring probe 3; a coordinate acquisition unit 4 is used to obtain the plane coordinate information of each measuring point on the color film substrate CF; a control unit 5 is used to control the first mobile unit to drive the first bracket 1 and / or the second bracket 2 to move according to the plane coordinate information, and control the second mobile unit to drive the measuring probe 3 to move on the first bracket 1 and / or the second bracket 2, so that the measuring probe 3 scans each measuring point.

[0041] By adopting the above structure, this embodiment can automatically control the movement trajectory of each measuring probe 3 according to the plane coordinate information of each measuring point on the color film substrate CF, thereby avoiding interference between the measuring probes 3, saving human resources for manually planning the movement trajectory of the measuring probe 3, avoiding the problem of easy errors in manual planning, and improving the efficiency of the measurement work.

[0042] The plane coordinate information of the measurement point on the color film substrate CF can be obtained based on the product model and product development data.

[0043] In one embodiment, Figure 2 As shown, the control unit 5 further includes a sorting unit 51, a distribution unit 52, a trajectory unit 53 and an instruction unit 54, wherein:

[0044] The sorting unit 51 is used to sort the measurement points according to the plane coordinate information to obtain sorting information;

[0045] The distribution unit 52 is used to determine the distribution position map of each measurement point on the color filter substrate CF according to the sorting information;

[0046] The trajectory unit 53 is used to determine the movement trajectory of each measuring probe 3 according to the distribution position map;

[0047] The instruction unit 54 is configured to send movement control instructions to the first movement unit and the second movement unit according to the movement trajectory.

[0048] In this way, the control unit 5 can automatically plan the movement trajectory of the measuring probe 3 according to the plane coordinate information, avoiding the risk of errors caused by manual operation.

[0049] In one embodiment, the control unit 5 further includes a division unit 55, which is configured to divide the movement area of ​​each measuring probe 3 according to the distribution position map. The trajectory unit 53 is configured to determine the movement trajectory of each measuring probe 3 based on the movement area of ​​each measuring probe 3. For example, if there are eight measuring probes 3, the color filter substrate CF can be divided into eight partitions. Each measuring probe 3 moves within its own partition to detect height information of the measurement points in its own area.

[0050] In this embodiment, the control unit 5 can be an industrial computer or an electronic device with computing capabilities, such as a computer, mobile phone, or tablet computer. The control unit 5 includes a processor and a storage medium. The storage medium stores a computer program or instructions, and the processor executes the computer program or instructions to implement the entire calculation process of automatically planning the movement trajectory of each measurement probe 3 based on the plane coordinate information.

[0051] In one embodiment, Figure 3As shown, the movement trajectory includes a zigzag pattern or a zigzag pattern. For example, when a measuring probe 3 on the first bracket 1 begins measurement, the first bracket 1 first moves a distance to the right, then the measuring probe 3 moves a distance upward, the first bracket 1 moves a distance to the left, and then the measuring probe 3 moves a distance upward again. In this way, the movement trajectory of the measuring probe 3 relative to the color filter substrate CF is similar to a zigzag pattern or a 5-shaped pattern.

[0052] For another example, a measuring probe 3 on the second bracket 2 first moves a distance to the right, then moves upward, and at the same time, the second bracket 2 moves to the left. At this time, the movement trajectory of the measuring probe 3 relative to the color film substrate CF is obliquely upward, and then the second bracket 2 continues to move to the left. In this way, the movement trajectory of the measuring probe 3 relative to the color film substrate CF is similar to a zigzag pattern.

[0053] In this way, by moving the bracket group and the measuring probe 3, each measuring point can be scanned and detected using the shortest moving trajectory.

[0054] Specifically, you can Figure 3 The figure shows a movement trajectory. The measurement probe 3 includes HEAD1, HEAD2, HEAD3, HEAD4, HEAD5, HEAD6, HEAD7, and HEAD8. HEAD1, HEAD2, HEAD3, and HEAD4 are located on the first bracket 1, while HEAD5, HEAD6, HEAD7, and HEAD8 are located on the second bracket 2. The first bracket 1 is on the right, and the second bracket 2 is on the left. The dotted area represents the active area corresponding to HEAD1 through HEAD8. Black dots represent measurement points on the color filter substrate CF. The solid line represents the movement trajectory of the measurement probe 3.

[0055] Figure 3 The moving trajectory in can ensure that each measuring probe 3 scans all measuring points with the shortest moving trajectory, and no collision or interference occurs between them, thereby improving the measurement efficiency.

[0056] In one embodiment, the movement direction of the measurement probe 3 is perpendicular to the movement direction of the first bracket 1 and the second bracket 2. Specifically, in the direction shown in the figure, the first bracket 1 and the second bracket 2 move left and right along the X-axis, while the measurement probe 3 moves up and down along the Y-axis. This makes the movement trajectory more regular, facilitates planning, and reduces the possibility of interference between the measurement probes 3.

[0057] In one embodiment, the number of measurement probes 3 on the first bracket 1 is the same as the number of measurement probes 3 on the second bracket 2. For example, if the number of measurement probes 3 on the first bracket 1 is four, the number of measurement probes 3 on the second bracket 2 is also four. This allows the movement trajectories of the measurement probes 3 on the first bracket 1 and the second bracket 2 to be the same, reducing the computational complexity of planning the movement trajectories.

[0058] In one embodiment, the distance between two adjacent measuring probes 3 on the first bracket 1 is greater than 350 mm, and the distance between two adjacent measuring probes 3 on the second bracket 2 is greater than 350 mm. This can avoid interference and collision between adjacent measuring probes 3 during mobile measurement.

[0059] In one embodiment, the first bracket 1 and the second bracket 2 are long and parallel to each other, and the distance between the first bracket 1 and the second bracket 2 is greater than 1100 mm. This can avoid interference and collision between the first bracket 1 and the second bracket 2.

[0060] In one embodiment, the height measuring device includes a first bracket 1, a second bracket 2, a plurality of measuring probes 3, a first moving unit, a second moving unit, a coordinate acquisition unit 4, and a control unit 5. In particular:

[0061] The first mobile unit is connected to the first bracket 1 and the second bracket 2 respectively; the second mobile unit is arranged on the first bracket 1 and the second bracket 2 and is connected to the measuring probe 3; the coordinate acquisition unit 4 is used to obtain the plane coordinate information of each measuring point on the color filter substrate CF;

[0062] The control unit 5 further includes a sorting unit 51, a distribution unit 52, a trajectory unit 53, an instruction unit 54, and a division unit 55. The sorting unit 51 is configured to sort the measurement points according to the plane coordinate information to obtain sorting information; the distribution unit 52 is configured to determine a distribution position map of each measurement point on the color filter substrate CF according to the sorting information; the division unit 55 is configured to divide the movement area of ​​each measurement probe 3 according to the distribution position map; the trajectory unit 53 is configured to determine the movement trajectory of each measurement probe 3 according to the movement area of ​​each measurement probe 3; and the instruction unit 54 is configured to send movement control instructions to the first and second mobile units according to the movement trajectory.

[0063] This embodiment automatically plans the movement trajectory of each measuring probe 3 based on the plane coordinate information of each measuring point on the color film substrate CF, and then controls the movement of each measuring probe 3 according to the movement trajectory to avoid interference between the measuring probes 3. This saves human resources for manually planning the movement trajectory of the measuring probe 3, avoids the problem of easy errors in manual planning, and improves the efficiency of the measurement work.

[0064] The present invention also provides a height measurement method, which is used to provide a height measurement device in the above embodiment. The height measurement device includes a bracket group, multiple measuring probes 3 for measuring the height of each measuring point on the color film substrate CF, a first movable unit and a second movable unit. The bracket group includes at least a first bracket 1 and a second bracket 2. The first movable unit is connected to the first bracket 1 and the second bracket 2 respectively. The second movable unit is arranged on the first bracket 1 and the second bracket 2 and is connected to the measuring probe 3.

[0065] like Figure 4 As shown, the method of this embodiment includes step S1 and step S2:

[0066] Step S1, obtaining the plane coordinate information of each measurement point on the color filter substrate CF;

[0067] Step S2, controlling the first mobile unit to drive the first bracket 1 and / or the second bracket 2 to move according to the plane coordinate information, and controlling the second mobile unit to drive the measuring probe 3 to move on the first bracket 1 and / or the second bracket 2, so that the measuring probe 3 scans each measuring point.

[0068] Specifically, the steps of controlling the first mobile unit to drive the first bracket 1 and / or the second bracket 2 to move according to the plane coordinate information, and controlling the second mobile unit to drive the measuring probe 3 to move on the first bracket 1 and / or the second bracket 2, further include the following steps: Figure 5 As shown:

[0069] Step S21, sorting the measurement points according to the plane coordinate information to obtain sorting information;

[0070] Step S22, determining a distribution map of each measurement point on the color filter substrate CF according to the sorting information;

[0071] Step S23, determining the movement trajectory of each measuring probe 3 according to the distribution position map;

[0072] Step S24: Sending a movement control instruction to the first mobile unit and the second mobile unit according to the movement trajectory.

[0073] Specifically, step S23 further includes:

[0074] Divide the moving area of ​​each measuring probe 3 according to the distribution position map;

[0075] The movement trajectory of each measuring probe 3 is determined according to the movement area of ​​each measuring probe 3 .

[0076] The method of this embodiment can automatically plan the movement trajectory of each measuring probe 3, avoid interference between the measuring probes 3, save human resources for manual planning of the movement trajectory of the measuring probe 3, avoid the problem of easy errors in manual planning, and improve the efficiency of the measurement work.

[0077] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A height measuring device, characterized in that: include: A bracket group, comprising at least a first bracket and a second bracket; Multiple measuring probes for detecting the height information of each measuring point on the color film substrate; a first moving unit, connected to the first bracket and the second bracket respectively; a second mobile unit, disposed on the first bracket and the second bracket and connected to the measuring probe; A coordinate acquisition unit, configured to acquire plane coordinate information of each measurement point on the color filter substrate; a control unit, configured to control the first moving unit to drive the first bracket and / or the second bracket to move according to the plane coordinate information, and control the second moving unit to drive the measuring probe to move on the first bracket and / or the second bracket, so that the measuring probe scans each of the measuring points; the moving direction of the measuring probe is perpendicular to the moving direction of the first bracket and the second bracket, and the first bracket and the second bracket are elongated and parallel to each other; wherein the control unit further includes: a sorting unit, configured to sort the measurement points according to the plane coordinate information to obtain sorting information; a distribution unit, configured to determine a distribution position map of each of the measurement points on the color filter substrate according to the sorting information; A trajectory unit, configured to determine a movement trajectory of each of the measuring probes according to the distribution position map; An instruction unit is used to send a movement control instruction to the first mobile unit and the second mobile unit according to the movement trajectory.

2. The height measuring device according to claim 1, characterized in that The control unit further includes a dividing unit configured to divide the moving area of ​​each measuring probe according to the distribution position diagram, and the trajectory unit configured to determine the moving trajectory of each measuring probe according to the moving area of ​​each measuring probe.

3. The height measuring device according to claim 1, wherein: The movement trajectory includes a "bow" shaped pattern or a "zigzag" shaped pattern.

4. The height measuring device according to claim 1, wherein: The number of the measuring probes on the first bracket is the same as the number of the measuring probes on the second bracket.

5. The height measuring device according to claim 1, wherein: The distance between two adjacent measuring probes on the first bracket is greater than 350 mm, and the distance between two adjacent measuring probes on the second bracket is greater than 350 mm.

6. The height measuring device according to claim 1, characterized in that The distance between the first bracket and the second bracket is greater than 1100 mm.

7. A height measurement method, characterized in that: A height measuring device is used, the height measuring device comprising a bracket group, a plurality of measuring probes for measuring the height of each measuring point on a color filter substrate, a first movable unit and a second movable unit, the bracket group comprising at least a first bracket and a second bracket, the first movable unit being connected to the first bracket and the second bracket respectively, the second movable unit being arranged on the first bracket and the second bracket and connected to the measuring probe; the method comprising: Obtaining plane coordinate information of each measurement point on the color filter substrate; Controlling the first moving unit to drive the first bracket and / or the second bracket to move according to the plane coordinate information, and controlling the second moving unit to drive the measuring probe to move on the first bracket and / or the second bracket, so that the measuring probe scans each of the measuring points; The moving direction of the measuring probe is perpendicular to the moving directions of the first bracket and the second bracket, and the first bracket and the second bracket are long and parallel to each other. The step of controlling the first moving unit to drive the first bracket and / or the second bracket to move according to the plane coordinate information, and controlling the second moving unit to drive the measuring probe to move on the first bracket and / or the second bracket, further includes: sorting the measurement points according to the plane coordinate information to obtain sorting information; Determine a distribution position map of each of the measurement points on the color filter substrate according to the sorting information; Determining a moving trajectory of each of the measuring probes according to the distribution position map; Sending a movement control instruction to the first mobile unit and the second mobile unit according to the movement trajectory.

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