Display panel floating platform

Abstract

The present invention relates to a display panel floating device, which includes: an upper plate in which a plurality of air supply holes and vacuum holes are alternately formed in order to stably float a display panel; a pressure maintaining plate in which a plurality of pressure maintaining holes communicating with the respective air supply holes and vacuum holes are formed in a state of being multilayered in order to stably maintain air pressure injected through the air supply holes and vacuum pressure sucked through the vacuum holes of the upper plate; a first lower plate fixed to a bottom surface of the pressure maintaining plate in order to supply vacuum pressure to the respective vacuum holes; a second lower plate fixed to a bottom surface of the first lower plate in order to supply air pressure to the respective air supply holes; and a plurality of manifolds fixed to a bottom surface of the second lower plate and formed in parallel with a vacuum supply flow path communicating with the first lower plate and an air supply flow path communicating with the second lower plate.

Description

Technical Field

[0001] This invention relates to a display panel floating platform, and more particularly to a display panel floating platform that not only prevents changes in vacuum pressure and air supply pressure in both the obstructed and unobstructed parts of the floating display panel, thereby enabling the display panel to float stably without shaking, but also sprays air supply pressure without vacuum pressure on both sides of the sinking display panel, thereby stably maintaining the flatness of the display panel. Background Technology

[0002] In general, in the construction of flat panel display devices used in televisions (TVs), monitors and mobile phones, a grid pattern is formed on the top of a transparent glass panel, a backlight is arranged behind it, a liquid crystal is arranged between the two, and a color filter is arranged in front of the glass panel.

[0003] By means of an electrical signal applied to the grid pattern, liquid crystal can block or allow light to pass through at specific locations, and display panel devices using this method are called "light-emitting diodes (liquid crystal display panels)". Alternatively, organic materials can be used instead of liquid crystals; these materials emit light themselves when they receive electrical signals, thus eliminating the need for a backlight, and display panel devices using this method are called "organic light-emitting diodes (OLEDs)".

[0004] To manufacture the flat panel display (FPD) device described above, multiple processes are required, and these processes involve repeated movement and inspection of the glass panel. Depending on the characteristics of the different processes, the methods for moving the glass panel vary. For simple transfers, rollers, indexes, or robotic arms can be used. However, because the inspection process requires precise handling, non-contact transfer is typically employed. Non-contact transfer devices include pneumatic systems and floating platforms.

[0005] As one of the characteristics that the floating platform should be equipped with, it needs to be able to expel as little air as possible under appropriate pressure, and it needs to be able to draw in the expelled air without obstruction.

[0006] In recent years, with the increase in display panel size and the corresponding improvement in precision, the requirements for panel transfer precision have become increasingly stringent.

[0007] If the glass panel shakes while moving, the image entering the camera will deteriorate, leading to a decrease in the quality of defect inspection.

[0008] That is, when the panel shakes up and down, the object being inspected, i.e. the glass panel, will go out of the lens's focus, thus failing to obtain a satisfactory inspection image and causing a decrease in inspection capability.

[0009] Among these factors, the floating platform is most closely related to the degree of vertical swaying when the glass panel moves. When the amount of air flowing out through the floating platform is unstable or the airflow is not smooth, it will cause the glass panel to sway.

[0010] The problems described above are caused by pressure and volume changes between the buoyancy platform and the glass panel.

[0011] Therefore, from the perspective of the buoyancy platform, it is crucial to ensure that air can be expelled smoothly while maintaining appropriate pressure and minimizing the amount of air.

[0012] The appropriate pressure refers to a pressure that provides sufficient resistance to prevent the glass panel from contacting the floating platform. Lower pressure improves transfer precision but increases the likelihood of contact with the floating platform, while higher pressure reduces the likelihood of contact but decreases floating stability.

[0013] Furthermore, excessive pressure can induce deformation of the buoyancy platform in some designs over a prolonged period. Therefore, maintaining appropriate pressure through thorough analysis of the glass panel, inspection precision, and manufacturing process is crucial.

[0014] Furthermore, even under appropriate pressure, a high airflow can cause the glass panel to wobble due to increased turbulence during air jetting. Moreover, the inability to expel large amounts of air quickly enough can lead to localized air stagnation, resulting in variations in the gap between the glass panel and the floating platform. These phenomena also reduce the stability of the floating mechanism, making it difficult to obtain high-quality inspection images.

[0015] To reduce airflow, a drag body is required. This drag body serves to both generate pressure and regulate airflow. Therefore, it can be said that the drag body is the most important technical element in a floating platform.

[0016] Furthermore, even with appropriate pressure and low airflow, it is still impossible to stably transport glass panels when air intake is not possible.

[0017] When designing a floating platform, the air intake section is often overlooked. However, its importance is no less than that of the drag system.

[0018] Even small amounts of air expelled will accumulate on the floating platform over time. Without proper air intake, the glass panel will move in a bent, umbrella-like shape, making it difficult to obtain high-quality inspection images. Therefore, a flow path must be ensured that allows for rapid intake of air flowing from the bottom of the floating platform. Summary of the Invention

[0019] Technical issues

[0020] The present invention aims to solve the existing problems as described above. The first objective of the present invention is to provide a display panel floating platform that can prevent changes in vacuum pressure and air supply pressure in the parts of the floating display panel with resistance and the parts without resistance, thereby enabling the display panel to float stably without shaking.

[0021] The second objective of this invention is to provide a display panel floating platform that can separate a pressure maintaining hole formed on a pressure maintaining plate into a pressure maintaining chamber and a passage with an inner diameter smaller than the pressure maintaining chamber, and make the passage eccentrically connected to the pressure maintaining chamber, thereby stably maintaining the supply pressure and vacuum pressure under eddy currents or volume increases occurring in the pressure maintaining chamber.

[0022] A third objective of the present invention is to provide a display panel floating platform that can stably maintain the flatness of the display panel by injecting only gas pressure without vacuum pressure on both sides of the display panel that is sinking.

[0023] Problem Solution

[0024] To achieve the aforementioned objective, the first invention is characterized by relating to a display panel floating platform, comprising: an upper plate having alternatingly formed multiple air supply holes and vacuum holes for stable floating of the display panel; a pressure maintaining plate having multiple overlapping pressure maintaining holes communicating with each of the air supply holes and vacuum holes to stably maintain the air supply pressure injected through the air supply holes on the upper plate and the vacuum pressure drawn in through the vacuum holes; a first lower plate fixed to the bottom surface of the pressure maintaining plate for supplying vacuum pressure to each of the vacuum holes; a second lower plate fixed to the bottom surface of the first lower plate for supplying air supply pressure to each of the air supply holes; and multiple manifolds fixed to the bottom surface of the second lower plate, having a vacuum supply flow path communicating with the first lower plate and an air supply flow path communicating with the second lower plate arranged side by side.

[0025] The second invention is characterized in that, based on the first invention, vacuum pipelines are formed in the first lower plate at certain intervals, and a first branch pipeline is formed in a tree-like shape on both sides of the length direction of each vacuum pipeline and communicates with the vacuum hole.

[0026] The third invention is characterized in that, based on the first invention, an air supply pipeline is formed in the second lower plate, which is fixed to the bottom surface of the first lower plate and arranged in parallel at a certain interval for supplying air pressure to the air supply hole, and a second branch pipeline is formed on both sides of the length direction of each air supply pipeline in a tree-like form and communicates with the air supply hole.

[0027] The fourth invention is characterized in that, based on the first invention, the pressure maintaining orifice is composed of a pressure maintaining chamber formed in the lower part and an eccentric passage connecting to the upper part of the pressure maintaining chamber, the passage being formed with an inner diameter relatively smaller than that of the pressure maintaining chamber.

[0028] The fifth invention is characterized in that, based on the fourth invention, the passage formed in the pressure maintaining holes of each pressure maintaining plate is formed eccentrically to the left or right, so that the passage and eccentric position of the stacked pressure maintaining plates are arranged in a zigzag pattern.

[0029] The sixth invention is characterized in that, based on the fourth invention, in one of the pressure maintaining plates, the pressure maintaining hole communicating with the vacuum hole is configured as a single pressure maintaining chamber without any passageway.

[0030] The seventh invention is characterized in that, based on the first invention, the upper plate is arranged in a manner in which air supply holes are arranged at certain intervals along both sides in a row, but no vacuum holes are arranged.

[0031] Invention Effects

[0032] The display panel floating platform of the present invention can prevent changes in vacuum pressure and gas supply pressure in the parts of the floating display panel with and without resistance, thereby enabling the display panel to float stably without shaking.

[0033] Furthermore, the flatness of the display panel can be stably maintained by injecting air pressure without vacuum pressure on both sides of the sinking display panel.

[0034] Furthermore, the pressure maintaining hole formed on the pressure maintaining plate can be separated into a pressure maintaining chamber and a passage with an inner diameter smaller than the pressure maintaining chamber, and the passage can be eccentrically connected to the pressure maintaining chamber, thereby stably maintaining the gas supply pressure and vacuum pressure under the eddy current or volume increase that occurs in the pressure maintaining chamber. Attached Figure Description

[0035] Figure 1 This is a perspective view of the floating platform of the display panel according to the present invention.

[0036] Figure 2 yes Figure 1 The bottom oblique view.

[0037] Figure 3 yes Figure 1 The exploded oblique view.

[0038] Figure 4 From Figure 3 The pressure maintaining plate selected in the figure is shown in a cross-sectional view.

[0039] Figure 5 From Figure 3 The first lower panel selected from the diagram is shown in the plan view.

[0040] Figure 6 From Figure 3 The second lower panel selected from the diagram is shown in the plan view.

[0041] Figure 7 From Figure 3 An oblique view of the selected manifold is shown in the figure.

[0042] Figure 8 This is a projection drawing illustrating the bottom surface of the floating platform of the display panel according to the present invention.

[0043] Figure 9 This is a cross-sectional view illustrating the cross-section of the display panel floating platform according to the present invention.

[0044] Figure 10 This is a photograph illustrating the lower plate of another embodiment. Detailed Implementation

[0045] Next, the display panel floating platform according to the present invention will be described in detail with reference to the accompanying drawings.

[0046] Figure 1 This is a perspective view of the floating platform of the display panel according to the present invention. Figure 2 yes Figure 1 The bottom oblique view, Figure 3 yes Figure 1 Exploded oblique view, Figure 4 From Figure 3 The cross-sectional view of the pressure maintaining plate selected in the diagram is shown. Figure 5 From Figure 3 The first lower panel selected from the diagram is shown in the plan view. Figure 6 From Figure 3 The second lower panel selected from the diagram is shown in the plan view. Figure 7 From Figure 3 An oblique view of the selected manifold is shown in the illustration. Figure 8 This is a projection view illustrating the bottom surface of the display panel floating platform according to the present invention. Figure 9This is a cross-sectional view illustrating the cross-section of the display panel floating platform according to the present invention.

[0047] like Figures 1 to 9 As shown, the present invention relates to a display panel floating platform 100 that not only prevents changes in vacuum pressure and air supply pressure in both the obstructed and unobstructed parts of the floating display panel, thereby enabling the display panel to float stably without shaking, but also sprays air supply pressure without vacuum pressure on both sides of the sinking display panel, thereby stably maintaining the flatness of the display panel 200.

[0048] As described above, the display panel floating platform 100 of the present invention is generally composed of five parts, namely, an upper plate 10, a pressure maintaining plate 20, a first lower plate 30, a second lower plate 40, and a manifold 50, which are connected to each other by bolts.

[0049] The upper plate 10, as Figure 1 As shown, the structure is formed by alternating multiple air supply holes 11 and vacuum holes 12 so that the display panel 200 can float stably.

[0050] In this embodiment, the air supply hole 11 and the vacuum hole 12 are configured in a grid pattern, but they can also be configured in a certain pattern.

[0051] At this time, the air supply pressure generated in the air supply hole 11 should be relatively greater than the vacuum pressure generated in the vacuum hole 12, so as to ensure that the display panel 200 can float.

[0052] The pressure maintaining plate 20 is fixed to the bottom surface of the upper plate 10 by means of bolts.

[0053] The pressure maintaining plate 20, as Figure 4 As shown, the structure has a plurality of pressure maintaining holes 21 that communicate with each of the air supply holes 11 and the vacuum holes 12 in order to stably maintain the air supply pressure injected from the air supply holes 11 of the upper plate 10 and the vacuum pressure drawn in from the vacuum holes 12.

[0054] The pressure maintaining hole 21 of the pressure maintaining plate 20 is composed of a pressure maintaining chamber 211 formed in the lower part and a passage 212 eccentrically connected to the upper part of the pressure maintaining chamber 211. At this time, the passage 212 is formed with a relatively small inner diameter compared to the pressure maintaining chamber 211.

[0055] The pressure maintaining port 21, which is connected to the air supply port 11, can function as a so-called drag body to create vortices in the air supplied through the pressure maintaining chamber 211 and thereby reduce its pressure.

[0056] Furthermore, the channel 212, which is eccentrically formed with respect to the pressure maintaining chamber 211, can reduce the airflow during pressure reduction.

[0057] The inner diameter of the pressure maintaining chamber 211 and the channel 212 can be changed according to the size and weight of the display panel 200.

[0058] Furthermore, the pressure maintaining port 21 connected to the vacuum port 12 can prevent the vacuum pressure from rising through the pressure maintaining chamber, and the passage 212 can adjust the intake volume to be the same as the supply volume.

[0059] The pressure maintaining plate 20, as Figure 4 as well as Figure 9 As shown, in order to stably maintain the gas supply pressure and vacuum pressure, it is composed of at least two overlapping components. In this invention, it is a structure formed by three overlapping pressure maintaining plates 20.

[0060] The pressure maintaining plate 20 can change its overlap number according to the required vacuum pressure and gas supply pressure.

[0061] Furthermore, the passages 212 formed in the pressure maintaining holes 21 of each pressure maintaining plate 20 are formed eccentrically to the left or right, thereby creating a zigzag configuration of the passages 212 and the eccentric positions of the stacked pressure maintaining plates 20.

[0062] In this way, the air discharged through the air supply port 11 can stably maintain the air supply volume and air supply pressure as it passes through multiple pressure maintaining ports 21.

[0063] In addition, the air drawn in through the vacuum port 12 can also maintain a stable vacuum pressure and air intake during the process of passing through multiple pressure maintaining ports 21.

[0064] In addition, such as Figure 4 As shown, in one of the pressure maintaining plates 20, the pressure maintaining hole 21 communicating with the vacuum hole 12 can be configured as a single pressure maintaining chamber 211 without a passage 212. The structure described above aims to generate greater resistance to vacuum pressure, thereby increasing the volume of air drawn in through the vacuum and maintaining a balance between the supply and intake volumes.

[0065] In order to increase the amount of air intake, the inner diameter of the passage 212 of the pressure maintaining hole 21, which communicates with the vacuum hole 12, can be relatively larger than the passage 212 of the pressure maintaining hole 21, which communicates with the air supply hole 11 (e.g., Figure 4 (As shown).

[0066] Therefore, the upper plate 10 can prevent changes in vacuum pressure and gas supply pressure in the parts of the display panel 200 with and without resistance, thereby allowing the display panel 200 to float stably without shaking.

[0067] Furthermore, the passage 212 of the pressure maintaining hole 21 of the pressure maintaining plate 20 disposed on the bottom surface of the upper plate 10 is a structure for supplying or drawing in air by connecting with the air supply hole 11 or the vacuum hole 12, and the pressure maintaining chamber 211 is a structure that overlaps to the lower part or communicates with the passage 212 of the pressure maintaining plate 20.

[0068] Furthermore, the pressure maintaining hole 21 disposed on the lowest pressure maintaining plate 20 is configured to independently receive the supply pressure for gas supply and the vacuum pressure supply for suction by communicating with the first lower plate 30 and the second lower plate 40, respectively.

[0069] Among them, the first lower plate 30 is as follows Figure 5 As shown, the structure is a vacuum flow path 31 formed by drawing air in through the vacuum hole 12 by means of negative pressure and fixed to the bottom surface of the pressure maintaining plate 20, and has a first branch pipe 311 formed in a tree-like shape on both sides of the length direction of the vacuum pipe 31.

[0070] Each of the first branch pipes 311 can be individually connected to the pressure maintaining chamber 211 of the pressure maintaining plate 20 that communicates with the vacuum hole 12, thereby forming a structure that draws in air by means of negative pressure.

[0071] Each vacuum flow path 31 of the first lower plate 30 has a plurality of first connecting pipes 312 formed independently of the first branch pipes 311, and a first through hole 313 for receiving vacuum pressure is also formed in the first connecting pipes 312.

[0072] At this time, the first through hole 313 is as follows Figure 6 As shown, it is configured to supply intake pressure for intake without interference from the second lower plate 40 by extending to the second lower plate 40.

[0073] The second lower plate 40 Figure 6 As shown, the structure is fixed to the bottom surface of the first lower plate 30 for supplying air to the air supply port 11, and includes air supply passages 41 arranged side by side at a certain interval, and second branch passages 411 formed in a tree-like shape on both sides of the length direction of the air supply passages 41.

[0074] Each of the second branch pipes 411 can be configured to be individually connected to the pressure maintenance chamber 211 that communicates with the air supply port 11, thereby supplying air for gas supply.

[0075] Specifically, each vacuum flow path 41 of the second lower plate 40 has a plurality of second connecting pipes 412 formed independently of the second branch pipes 411, and a second through hole 413 for receiving gas supply pressure is also formed in the second connecting pipes 412.

[0076] The manifold 50 can be combined with one or more, and as Figure 7 As shown, the structure consists of a gas supply path 51 and a vacuum supply path 52, which are fixed to the bottom surface of the second lower plate 40 and are arranged side by side, respectively connected to the gas supply path 41 of the first lower plate 30 and the vacuum path 31 of the second lower plate 40.

[0077] Among them, such as Figure 8 As shown, the gas supply pipeline 51 can be connected to the second through holes 413 formed on each of the second connecting pipelines 412 on the second base plate 40, thereby providing gas supply pressure to each of the gas supply pipelines 41.

[0078] In addition, the vacuum supply line 52 can be connected to the first through hole 313 formed on each of the first connecting lines 312 of the first lower plate 30, thereby serving to supply vacuum pressure to each of the vacuum lines 31.

[0079] In addition, the bottom surface of the manifold 50 also includes a gas supply terminal hole 511 that communicates with the gas supply pipeline 51 and a vacuum terminal hole 521 that communicates with the vacuum supply pipeline 52.

[0080] At this time, a socket block 60 for connecting the vacuum hose 61 and the gas supply hose 62 can be attached to the vacuum terminal hole 521 and the gas supply terminal hole 511 of the manifold 50.

[0081] Furthermore, the display panel floating platform 100 of the present invention can generate only air supply pressure on both sides of the sinking display panel 200 without vacuum pressure, thereby maintaining the flatness of the display panel 200.

[0082] Therefore, the upper plate 10 is as follows Figure 1 As shown, a row of columns along both sides is provided with only air supply holes 11 but no vacuum holes 12 at certain intervals.

[0083] Furthermore, the air supply pipes 41 arranged on both sides of the air supply pipe 41 in the second lower plate 40 are configured such that the auxiliary air supply pipe 42 without the second branch pipe 411 is interconnected with each of the air supply holes 11.

[0084] A third through hole 421 for receiving air supply can be formed on the auxiliary air supply line 42 of the second lower plate 40 as described above.

[0085] In addition, an auxiliary supply line 53 for supplying air to the two auxiliary air supply lines 42 separately can also be formed on the manifold 50.

[0086] Furthermore, two auxiliary terminal holes 531 communicating with the auxiliary supply pipeline 53 are also formed on the upper side of the manifold 50, and auxiliary socket blocks 70 for individually supplying gas pressure are respectively connected in the two auxiliary terminal holes 531.

[0087] In this way, the air supply holes 11 arranged in a row on both sides of the upper plate 10 can maintain the flatness of the display panel 200 by supplying air pressure individually, and can also function as a guide grid to allow the display panel 200 to move linearly according to its size.

[0088] The air supply and intake paths of the display panel floating platform of the present invention, as described above, are as follows.

[0089] Next, please refer to Figure 8 as well as Figure 9 Please provide an explanation.

[0090] Intake: Vacuum tank (not shown) → Manifold with socket block (vacuum terminal hole → supply flow path) → First lower plate (first connection flow path → first through hole → first branch line - vacuum line) → Pressure maintaining plate (pressure maintaining hole (pressure maintaining chamber → passage)) → Upper plate (vacuum hole)

[0091] Air supply: Compressor tank (not shown) → Insertion block manifold (air supply terminal hole → air supply flow path) → Second lower plate (second connection flow path → second through hole → second branch line - air supply line) → Pressure maintaining plate (pressure maintaining hole (pressure maintaining chamber → passage)) → Upper plate (air supply hole)

[0092] Air supply from the outer edge of the upper plate: Compressor tank (not shown) → Auxiliary socket block → Manifold (auxiliary terminal hole → auxiliary supply line) → Second lower plate (third through hole → auxiliary air supply line) → Pressure maintaining plate (pressure maintaining hole (pressure maintaining chamber → passage)) → Upper plate (air supply hole)

[0093] also, Figure 10 This is a photograph illustrating the lower plate of another embodiment.

[0094] like Figure 10 As shown, grooves 121 extending along the travel direction of the display panel 200 can also be formed in each vacuum hole 12 of the upper plate 10.

[0095] When the end of the display panel 200 is bent, scratches may occur on the display panel or the upper plate 10 at the location of the vacuum hole 12 due to friction with the surface of the upper plate 10. The grooves 121 can prevent the phenomenon described above by slowing down the formation of vacuum pressure.

[0096] As described above, the display panel floating platform of the present invention can be used in applications such as inspection instruments, logistics, special process equipment, pharmaceutical coating machines, and measuring instruments, depending on its intended use.

[0097] In addition to air, nitrogen can also be used as the gas used in this invention, and liquids such as distilled water can also be used.

[0098] Furthermore, although the upper plate has a structure that forms only air supply holes on both sides, it can also function as a vacuum hole by supplying vacuum pressure, or selectively supply air pressure or vacuum pressure to the air supply hole by connecting a vacuum hose or air supply hose in the auxiliary socket.

[0099] The embodiments described in this specification and the configurations illustrated in the accompanying drawings are merely preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. There may be other equivalents and modifications that could be substituted at the time of filing this application.

Claims

1. A display panel floating platform, characterized in that, include: The upper plate has multiple air supply holes and vacuum holes alternately formed to ensure that the display panel floats stably. The pressure maintaining plate is configured to stably maintain the air supply pressure injected through the air supply holes on the upper plate and the vacuum pressure drawn in through the vacuum holes, and is formed in a multi-layered overlapping state with multiple pressure maintaining holes that communicate with each of the air supply holes and the vacuum holes. The first lower plate is fixed to the bottom surface of the pressure maintaining plate in order to supply vacuum pressure to the various vacuum holes; The second lower plate is fixed to the bottom surface of the first lower plate in order to supply air pressure to each of the air supply holes; as well as, Multiple manifolds are fixed to the bottom surface of the second lower plate and are arranged side by side to form a vacuum supply flow path communicating with the first lower plate and a gas supply flow path communicating with the second lower plate. The pressure maintaining hole is formed by a pressure maintaining chamber formed in the lower part and an eccentric passage connecting to the upper part of the pressure maintaining chamber. The passage formed in the pressure maintaining hole of each pressure maintaining plate is eccentrically formed to the left or right, so that the passage and eccentric position of the stacked pressure maintaining plates are arranged in a zigzag pattern.

2. The display panel floating platform according to claim 1, characterized in that: Vacuum pipes are formed in the first lower plate at certain intervals, and a first branch pipe is formed in a tree-like shape on both sides of the length direction of each vacuum pipe and communicates with the vacuum hole.

3. The display panel floating platform according to claim 1, characterized in that: The second lower plate has air supply pipes that are fixed to the bottom surface of the first lower plate and arranged at a certain interval to supply air pressure to the air supply holes, and second branch pipes that form multiple branches in a tree-like shape on both sides of the length direction of each air supply pipe and communicate with the air supply holes.

4. The display panel floating platform according to claim 1, characterized in that: The passage is formed with a relatively small inner diameter compared to the pressure maintaining chamber.

5. The display panel floating platform according to claim 4, characterized in that: In one of the pressure maintaining plates, the pressure maintaining hole communicating with the vacuum hole is configured as a single pressure maintaining chamber without the passageway.

6. The display panel floating platform according to claim 1, characterized in that: Grooves extending along the travel direction of the display panel are also formed in each of the vacuum holes on the upper plate.

Images