A flat drawing board auxiliary line drawing device

Abstract

The application discloses a kind of flat panel drawing board auxiliary line marking device, comprising: base, for carrying the liquid crystal display module to be measured;Guide slide rail mechanism, erect above base, for providing linear motion track;Sliding member, with guide slide rail mechanism sliding cooperation, can be moved along the length direction of guide slide rail mechanism;Fixed component, fixed on sliding member, for clamping test pen and keeping the end of test pen and the surface of liquid crystal display module contact;Sliding member can carry fixed component and move along the length direction of guide slide rail mechanism, so that test pen draws straight line on the surface of liquid crystal display module.The application realizes mechanization straight line marking by guide slide rail mechanism and sliding member cooperation, can always keep test pen and electromagnetic film surface contact state constant, uniform test standard, completely solve the problem of artificial test precision deviation, poor consistency, effectively improve the detection accuracy of electromagnetic film line marking test.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal display module testing technology, and in particular to a flat panel drawing board auxiliary scribing device. Background Technology

[0002] Electromagnetic Resonance (EMR) technology is widely used in the LCD modules of flat panel drawing boards. The electromagnetic film is the core component that enables electromagnetic touch and line drawing functions in flat panel drawing boards. During the production process of flat panel LCD modules, line drawing tests are required on the electromagnetic film inside the module to verify its sensing performance, line drawing response performance, and overall functional integrity. This process filters out defective products with malfunctions, ensuring the quality of the modules leaving the factory. Currently, the industry commonly uses manual handheld testing for electromagnetic films. Operators manually hold the testing pen and repeatedly draw straight lines on the surface of the LCD module, thus manually verifying the functionality of the electromagnetic film.

[0003] This traditional operating mode is constrained by human condition, operator skill level, and fatigue in actual production applications. It cannot maintain a stable and continuous marking operation, and the overall testing cycle is fixed and cannot be accelerated, making it difficult to match the capacity requirements of modern production lines and resulting in poor overall production adaptability. Furthermore, during manual handheld testing, it is impossible to maintain consistent contact between the pen tip and the LCD module surface, and the pen's movement trajectory cannot be stably controlled. This easily leads to problems such as marking trajectory deviation and contact fluctuations, affecting the consistency of LCD module product quality and reliability. Summary of the Invention

[0004] In order to solve the technical problems existing in the background art, the present invention proposes a flat drawing board auxiliary drawing device.

[0005] The present invention provides a flat drawing board auxiliary line drawing device, comprising: The base is used to support the liquid crystal display module to be tested; The guide rail mechanism, mounted above the base, is used to provide a linear motion track; The sliding component slides in conjunction with the guide rail mechanism and can move along the length of the guide rail mechanism; A fixing component, fixed to the sliding component, is used to hold the test pen and keep the end of the test pen in contact with the surface of the liquid crystal display module; The slider can carry the fixed component along the length of the guide rail mechanism, so that the test pen can draw a straight line on the surface of the liquid crystal display module.

[0006] Preferably, the guide rail mechanism includes two support rods and a guide rail. The two support rods are respectively vertically fixed on both sides of the upper surface of the base in the width direction. The two ends of the guide rail are respectively fixedly connected to the top of the two support rods. The guide rail spans across the top of the base, and the extension direction of the guide rail is parallel to the length direction of the base.

[0007] Preferably, the liquid crystal display module is placed flat on the upper surface of the base, the upper surface of the liquid crystal display module is in a first plane parallel to the upper surface of the base, the guide rail is in a second plane parallel to the first plane, and the second plane is above the first plane. The distance between the first plane and the second plane is constant, so that the end of the test pen maintains a constant contact distance with the surface of the liquid crystal display module as the test pen moves along the guide rail with the slider.

[0008] Preferably, the sliding member is equipped with multiple rollers, each roller is respectively disposed on both sides of the guide rail and clamps the guide rail, the outer peripheral surface of each roller rolls against the surface of the guide rail, and the roller rotates around its own axis when subjected to thrust, so as to carry the fixing component to move along the length direction of the guide rail.

[0009] Preferably, the upper end of the slider is provided with a hand-held drive unit, which allows the operator to apply force to push the slider to move along the guide rail; the hand-held drive unit is also provided with a locking mechanism, which is used to lock the slider in a predetermined position on the guide rail when not in operation, so as to prevent the slider from sliding.

[0010] Preferably, the locking mechanism includes a screw mounted on the hand-held drive unit. The screw is arranged in a direction perpendicular to the guide rail. The end of the screw near the guide rail is the abutment end, and the end of the screw away from the guide rail is the operating end. Rotating the operating end can move the abutment end closer to or away from the guide rail. When the abutment end is pressed against the guide rail, the sliding member is locked at the current position on the guide rail.

[0011] Preferably, the fixing component includes a mounting plate and a clamping plate. The mounting plate is fixed to the sliding member, and the clamping plate is disposed opposite to the mounting plate and can be opened and closed relative to the mounting plate. The mounting plate has a first arc-shaped opening on the side facing the clamping plate, and the clamping plate has a second arc-shaped opening on the side facing the mounting plate. After the mounting plate and the clamping plate are assembled, the first arc-shaped opening and the second arc-shaped opening together form a mounting groove adapted to hold the test pen. The inner wall contour of the mounting groove is adapted to the outer peripheral contour of the test pen to confine the test pen circumferentially within the mounting groove.

[0012] Preferably, the mounting groove extends vertically through the mounting plate and the clamping plate, the test pen is inserted into the mounting groove with the tip of the test pen extending vertically downward, and multiple locking screw holes are provided between the mounting plate and the clamping plate. Each locking screw hole is distributed on both sides of the mounting groove, and a locking screw is provided in each locking screw hole. When the locking screw is tightened, the clamping plate moves towards the mounting plate to clamp and fix the test pen inserted into the mounting groove.

[0013] The advantages of the flat drawing board auxiliary line drawing device proposed in this invention are: 1. Mechanized linear scribing is achieved through the cooperation of the guide rail mechanism and the sliding parts, which can always maintain a constant contact state between the test pen and the electromagnetic membrane surface, unify the testing standard, completely solve the problems of accuracy deviation and poor consistency in manual testing, and effectively improve the detection accuracy of electromagnetic membrane scribing test.

[0014] 2. This invention replaces manual hand-held operation, and can continuously and stably complete the scribing test operation. It is not affected by human fatigue or operator proficiency, effectively improving the stability and continuity of the test operation and adapting to the standardized test operation requirements of the production line. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of a flat drawing board auxiliary line drawing device proposed in this invention; Figure 2 This is a front view of a flat drawing board auxiliary line drawing device proposed in this invention; Figure 3 This is a top view of a flat drawing board auxiliary line drawing device proposed in this invention. Detailed Implementation

[0016] refer to Figure 1-3 This invention proposes an auxiliary scribing device for flat panel display modules, used for scribing function verification testing of the EMR electromagnetic film inside the LCD module. The device includes a base 1, a guide rail mechanism 2, a slider 3, a fixing component 4, and an LCD module 5. The base 1 supports the LCD module 5 under test, positioning and defining its placement, providing a stable working surface for the electromagnetic film scribing test. The guide rail mechanism 2, mounted above the base 1, provides a fixed linear motion track, constraining the trajectory of subsequent scribing movements and ensuring the linear accuracy of the scribing during electromagnetic film testing. The slider 3 slides along the guide rail mechanism 2, allowing for reciprocating linear movement along its length. The fixing component 4 is fixedly mounted on the slider 3, holding and fixing the test pen while ensuring the tip of the test pen remains in contact with the electromagnetic film layer on the surface of the LCD module 5. The slider 3 can carry the fixing component 4 to move synchronously along the length of the guide rail mechanism 2, driving the test pen to complete a regular straight line drawing action on the electromagnetic film surface of the liquid crystal display module 5, thereby completing the automated verification test of the electromagnetic film sensing and drawing function.

[0017] The guide rail mechanism 2 includes two support rods 21 and a guide rail 22. The two support rods 21 are respectively vertically fixed on both sides of the upper surface of the base 1 in the width direction. The support rods 21 and the base 1 are fixedly assembled to achieve no relative displacement. The two ends of the guide rail 22 are respectively fixedly connected to the top ends of the two support rods 21. The guide rail 22 is arranged horizontally across the upper area of ​​the base 1, and the extension direction of the guide rail 22 is parallel to the length direction of the base 1. The support rods 21 are used to support the guide rail 22, so that a fixed overhead working space is formed between the guide rail 22 and the base 1, which meets the working space requirements for the placement of the liquid crystal display module 5 and the electromagnetic film scribing test. The guide rail 22 is used to provide a dedicated guide path for the movement of the slider 3, strictly limiting the movement direction of the slider 3 and ensuring the straightness of the scribing trajectory.

[0018] The liquid crystal display module 5 is placed flat on the upper surface of the base 1, with its bottom in contact with the upper surface of the base 1. The upper surface of the liquid crystal display module 5, which houses the electromagnetic film, forms a first plane parallel to the upper surface of the base 1. The guide rail 22 is entirely within a second plane, which is parallel to the first plane and positioned above it. The distance between the first and second planes remains constant, defined by the support height of the support rod 21 and the assembly position of the guide rail 22. As the test pen follows the slider 3 along the guide rail 22 throughout its movement, the contact state between the tip of the test pen and the surface of the electromagnetic film of the liquid crystal display module 5 remains consistent, maintaining a constant contact distance. This eliminates interference from fluctuations in the contact state during testing, ensuring the stability of the scribing test and the consistency of the test data.

[0019] Multiple rollers are mounted on the slider 3, with each roller positioned on one side of the guide rail 22. All rollers work together to clamp the guide rail 22, forming a limiting fit between the slider 3 and the guide rail 22. The outer circumferential surface of each roller maintains rolling contact with the surface of the guide rail 22, and the roller can rotate freely relative to its own axis. When an external force is applied to the slider 3, the roller is driven by friction to rotate around its own axis. This rolling motion of the rollers drives the slider 3 and the fixing assembly 4 to move smoothly along the length of the guide rail 22, reducing the resistance between the slider 3 and the guide rail 22. Simultaneously, the clamping and limiting action of the rollers on both sides restricts the lateral displacement of the slider 3 relative to the guide rail 22, ensuring stability during the sliding process and preventing deviation of the trajectories.

[0020] The upper end of the slider 3 is integrally equipped with a hand-held drive unit 31, which serves as the structural carrier for the operator to apply force. The operator can directly apply pushing or pulling force to drive the slider 3 to move linearly along the guide rail 22, completing the continuous scribing test of the electromagnetic membrane. The hand-held drive unit 31 is integrated with a locking mechanism, which corresponds to the structural configuration of the guide rail 22. When the device is not in operation, the locking mechanism can fix the slider 3 at any predetermined position on the guide rail 22, restricting the slider 3 from autonomous sliding displacement relative to the guide rail 22. This prevents the slider 3 from shifting randomly during device idleness or transportation. At the same time, the position of the slider 3 can be fixed during test intervals, eliminating the need for repeated alignment and calibration, thus improving test efficiency.

[0021] The locking mechanism includes a screw 311, which is mounted through the hand-held drive unit 31. The mounting direction of the screw 311 is perpendicular to the length direction of the guide rail 22. One end of the screw 311 is the abutment end, facing the side wall of the guide rail 22, and the other end is the operating end, exposed outside the hand-held drive unit 31, for manual operation by the operator. When the operator rotates the operating end of the screw 311, the screw 311 can make a linear feed motion along its own axis, causing the abutment end to move closer to or away from the guide rail 22. When the abutment end is tightly pressed against the side wall surface of the guide rail 22, static friction is generated between the screw 311 and the guide rail 22, restricting the degree of freedom of movement of the sliding member 3 and locking the sliding member 3 in the current position of the guide rail 22. When the abutment end disengages from the side wall of the guide rail 22, the locking state is released, and the sliding member 3 can slide normally along the guide rail 22.

[0022] The fixing component 4 includes a mounting plate 41 and a clamping plate 42. The mounting plate 41 is fixedly assembled to the side wall of the sliding member 3, maintaining a fixed connection with the sliding member 3 without relative displacement. The clamping plate 42 is arranged opposite to the mounting plate 41, and the clamping plate 42 can open and close relative to the mounting plate 41 to adjust the clamping space. The mounting plate 41 has a first arc-shaped opening on the side facing the clamping plate 42, and the clamping plate 42 has a second arc-shaped opening on the side facing the mounting plate 41. The contours of the first arc-shaped opening and the second arc-shaped opening match each other. After the mounting plate 41 and the clamping plate 42 are closed and assembled, the first arc-shaped opening and the second arc-shaped opening together form a mounting groove 43. The internal contour of the mounting groove 43 is adapted to the outer contour of the test pen, which can limit the circumferential position of the test pen, restricting the test pen from circumferential rotation and radial displacement within the mounting groove 43, and ensuring the stability of the test pen's working state.

[0023] The mounting groove 43 extends vertically through the upper and lower end faces of the mounting plate 41 and the clamping plate 42. The test pen can be inserted vertically into the mounting groove 43, with the pen tip extending vertically downwards into the mounting groove 43, ensuring that the pen tip can be perpendicularly attached to the electromagnetic film surface of the liquid crystal display module 5. Multiple locking screw holes 44 are respectively provided at corresponding positions on the mounting plate 41 and the clamping plate 42. All locking screw holes 44 are symmetrically distributed on both sides of the mounting groove 43, and each locking screw hole 44 is fitted with a matching locking screw. During the tightening of the locking screw, the tightening force of the screw drives the clamping plate 42 to move closer to the mounting plate 41, reducing the internal space of the mounting groove 43 and clamping and fixing the test pen inserted into the mounting groove 43. When the locking screw is loosened in the opposite direction, the distance between the clamping plate 42 and the mounting plate 41 increases, the space of the mounting groove 43 expands, and the clamping and fixing of the test pen can be released, realizing the disassembly and replacement of the test pen and adapting to the assembly and use requirements of test pens of different specifications.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flat drawing board auxiliary line drawing device, characterized in that, include: The base (1) is used to support the liquid crystal display module (5) to be tested. The guide rail mechanism (2) is mounted above the base (1) and is used to provide a linear motion track; The sliding member (3) is in sliding cooperation with the guide rail mechanism (2) and can move along the length direction of the guide rail mechanism (2); The fixing component (4) is fixed on the sliding component (3) and is used to hold the test pen and keep the end of the test pen in contact with the surface of the liquid crystal display module (5); The slider (3) can carry the fixed component (4) to move along the length of the guide rail mechanism (2) so that the test pen can draw a straight line on the surface of the liquid crystal display module (5).

2. The flat drawing board auxiliary marking device according to claim 1, characterized in that, The guide rail mechanism (2) includes two support rods (21) and a guide rail (22). The two support rods (21) are respectively vertically fixed on both sides of the upper surface of the base (1) in the width direction. The two ends of the guide rail (22) are respectively fixedly connected to the top of the two support rods (21). The guide rail (22) spans across the top of the base (1), and the extension direction of the guide rail (22) is parallel to the length direction of the base (1).

3. The flat drawing board auxiliary marking device according to claim 2, characterized in that, The liquid crystal display module (5) is placed flat on the upper surface of the base (1). The upper surface of the liquid crystal display module (5) is on a first plane parallel to the upper surface of the base (1). The guide rail (22) is on a second plane parallel to the first plane, and the second plane is above the first plane. The distance between the first plane and the second plane is constant so that the end of the test pen keeps a constant distance from the surface of the liquid crystal display module (5) as the test pen moves along the guide rail (22) with the slider (3).

4. The flat drawing board auxiliary marking device according to claim 3, characterized in that, Multiple rollers are installed on the sliding member (3). Each roller is set on both sides of the guide rail (22) and clamps the guide rail (22). The outer circumferential surface of each roller rolls against the surface of the guide rail (22). When the roller is pushed, it rotates around its own axis to carry the fixed component (4) to move along the length direction of the guide rail (22).

5. The flat drawing board auxiliary marking device according to claim 4, characterized in that, The upper end of the slider (3) is provided with a hand-held drive unit (31) for the operator to apply force to push the slider (3) to move along the guide rail (22); the hand-held drive unit (31) is also provided with a locking mechanism, which is used to lock the slider (3) in a predetermined position on the guide rail (22) in the non-working state to prevent the slider (3) from sliding.

6. The flat drawing board auxiliary marking device according to claim 5, characterized in that, The locking mechanism includes a screw (311), which is mounted on the hand-held drive unit (31). The screw (311) is arranged in a direction perpendicular to the guide rail (22). The end of the screw (311) close to the guide rail (22) is the abutting end, and the end of the screw (311) away from the guide rail (22) is the operating end. Rotating the operating end can move the abutting end closer to or away from the guide rail (22). When the abutting end is pressed against the guide rail (22), the sliding member (3) is locked at the current position of the guide rail (22).

7. The flat drawing board auxiliary marking device according to claim 4, characterized in that, The fixing component (4) includes a mounting plate (41) and a clamping plate (42). The mounting plate (41) is fixed on the sliding member (3). The clamping plate (42) is arranged opposite to the mounting plate (41) and can be opened and closed relative to the mounting plate (41). The mounting plate (41) has a first arc-shaped opening on the side facing the clamping plate (42), and the clamping plate (42) has a second arc-shaped opening on the side facing the mounting plate (41). After the mounting plate (41) and the clamping plate (42) are assembled, the first arc-shaped opening and the second arc-shaped opening together form a mounting groove (43) adapted to hold the test pen. The inner wall contour of the mounting groove (43) is adapted to the outer periphery contour of the test pen to limit the circumferential of the test pen within the mounting groove (43).

8. The flat drawing board auxiliary marking device according to claim 7, characterized in that, The mounting slot (43) extends vertically through the mounting plate (41) and the clamping plate (42). The test pen is inserted into the mounting slot (43) with its tip pointing vertically downward. Multiple locking screw holes (44) are provided between the mounting plate (41) and the clamping plate (42). Each locking screw hole (44) is distributed on both sides of the mounting slot (43). Each locking screw hole (44) is equipped with a locking screw. When the locking screw is tightened, the clamping plate (42) moves towards the mounting plate (41) to clamp and fix the test pen inserted into the mounting slot (43).

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