A special fixture for LCOS liquid crystal packaging box leveling

Abstract

The utility model provides a kind of LCOS liquid crystal packaging box special clamp for leveling, including support shell and leveling assembly, the side of support shell is equipped with mounting slot, at least one clamp assembly for clamping liquid crystal box is movably arranged in mounting slot, each clamp assembly includes: upper pad, lower pad and fixed plate, a plurality of card slots for liquid crystal box are arranged on fixed plate at equal intervals, the side of card slot has aperture communicated with outside, the two sides of each fixed plate are equipped with a plurality of positioning pins, the positioning hole matched with positioning pin is formed in each upper pad and lower pad, leveling assembly is arranged in support shell, and leveling assembly is used to exert downward pressure on upper pad, which solves the problem that air bag is used to level liquid crystal box in prior art, due to the gap between liquid crystal boxes, uneven stress is caused when liquid crystal box is pressed, and the leveling effect is affected.

Description

Technical Field

[0001] This utility model relates to the field of display panel packaging and leveling technology, and in particular to a special fixture for leveling LCOS liquid crystal packaging boxes. Background Technology

[0002] LCOS (Liquid Crystal on Silicon) cell is a micro-display device packaging structure based on liquid crystal on silicon (LCOS) technology. Its core involves precisely bonding a silicon-based driving board or a transparent conductive glass driving board to another transparent conductive glass substrate, injecting liquid crystal material, and then sealing it to form a micro-optical component with high resolution and high luminous efficiency for reflective or transmissive displays. In LCOS cell production, the cells are primarily manufactured using a thermosetting adhesive curing process. When the cell thickness is large (generally greater than 5µm), to ensure the structural integrity of the empty cell during subsequent thermosetting, a support powder spraying process is required before bonding the upper and lower substrates. This prevents the empty cell from collapsing under pressure, which would result in product scrap. Due to the spraying of support powder, the thickness of the laminated empty cell is generally higher in the middle than at the edges. To ensure uniform cell thickness, the packaged cell needs to be leveled.

[0003] The clamps used for leveling the LCD cell are general-purpose clamps. The LCD cell is placed between two flat plates, and an airbag is placed on top of the upper plate for pressure leveling. To protect the LCD cell, rubber pads or cushioning paper are placed on the bottom of the upper plate. Since the products to be leveled need to be placed at a certain distance, there are gaps between the products. When pressure is applied, the rubber pads are pressed into the gaps between the products, resulting in uneven stress on the products and affecting the leveling effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a special jig for leveling LCOS liquid crystal packaging cells. It solves the problem that when airbags are used to level liquid crystal cells, the gaps between the liquid crystal cells cause uneven stress when the cells are compressed, thus affecting the leveling effect.

[0005] According to an embodiment of this utility model, a special clamping fixture for leveling LCOS liquid crystal packaging cells includes a support shell and a leveling assembly. A mounting groove is provided on one side of the support shell, and at least one clamping assembly for clamping liquid crystal cells is movably provided in the mounting groove. Each clamping assembly includes an upper pad, a lower pad, and a fixing plate. A plurality of slots for the liquid crystal cells to be inserted are provided at equal intervals on the fixing plate. One side of the slot has a notch communicating with the outside. A plurality of positioning pins are provided on both sides of each fixing plate. Positioning holes that cooperate with the positioning pins are provided on each upper pad and lower pad. The leveling assembly is disposed in the support shell and is used to apply downward pressure to the upper pad.

[0006] Compared with the prior art, the present invention has the following advantages: by setting a fixing plate between the upper and lower pads, the fixing plate is positioned with the upper and lower pads by positioning pins. The fixing plate has a slot for placing the liquid crystal cell. The side of the liquid crystal cell with the extrusion port is located at the notch of the slot. The leveling component applies pressure to the upper pad to extrude excess liquid crystal in the liquid crystal cell, thereby achieving the purpose of leveling the liquid crystal cell. When the upper pad applies pressure to the liquid crystal cell in the slot, the gap between the liquid crystal cells is filled by the fixing plate, which avoids the liquid crystal cell from being subjected to lateral force, thus making the liquid crystal cell uniformly stressed and resulting in uniform thickness of the leveled liquid crystal cell.

[0007] Furthermore, the leveling component includes: a pressure plate, which is set in the mounting groove of the support shell. Both ends of the pressure plate are provided with support shafts. Both ends of the top of the support shell are provided with through holes. Each support shaft is slidably connected to the corresponding through hole. The bottom of the pressure plate is provided with an air bladder. The top of the pressure plate is provided with an air pipe. One end of the air pipe passes vertically downward through the pressure plate and communicates with the air bladder. The other end of the air pipe passes vertically upward through the support shell. The support shell is provided with an air hole for the air pipe to pass through. Each support shaft is provided with an adjusting component for adjusting the relative distance between the pressure plate and the top of the support shell.

[0008] Furthermore, each adjusting component includes a first nut, which is screwed onto each support shaft and is located above the support housing.

[0009] Furthermore, it also includes a second nut, which is threaded onto each support shaft and is located in the mounting groove.

[0010] Furthermore, a sealing strip is provided around the bottom of the pressure plate, forming a receiving cavity, and the airbag is embedded in the receiving cavity.

[0011] Furthermore, the support housing includes a mounting housing and a top cover, with an opening at the top of the mounting housing and the top cover being detachably disposed on the top of the mounting housing.

[0012] Furthermore, the airbag is made of high-pressure resistant rubber.

[0013] Furthermore, both the support shell and the pressure plate are made of hard alloy material. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0015] Figure 2 This is a front view of an embodiment of the present utility model.

[0016] Figure 3 This is a schematic diagram of the fixing plate assembly according to an embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the airbag installation according to an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the support shell structure according to an embodiment of the present utility model.

[0019] In the above attached figures: 1. Support shell; 2. Upper pad; 3. Lower pad; 4. Fixing plate; 5. Slot; 6. Positioning pin; 7. Pressure plate; 8. Support shaft; 9. Airbag; 10. Air tube; 11. First nut; 12. Second nut; 13. Sealing strip; 101. Mounting shell; 102. Top cover. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 3 As shown in the figure, this utility model embodiment proposes a special clamping fixture for leveling LCOS liquid crystal packaging cells, including a support shell 1 and a leveling assembly. A mounting groove is provided on one side of the support shell 1, and at least one clamping assembly for clamping liquid crystal cells is movably provided in the mounting groove. Each clamping assembly includes: an upper pad 2, a lower pad 3, and a fixing plate 4. A plurality of slots 5 for the liquid crystal cells to be inserted are provided at equal intervals on the fixing plate 4. One side of the slots 5 has a notch communicating with the outside. A plurality of positioning pins 6 are provided on both sides of each fixing plate 4. Positioning holes that cooperate with the positioning pins 6 are provided on each upper pad 2 and lower pad 3. The leveling assembly is set inside the support shell 1 and is used to apply downward pressure to the upper pad 2. The fixing plate 4 is located between the upper pad 2 and the lower pad 3. The bottom of the upper pad 2 is also provided with buffer paper or rubber pads to protect the liquid crystal cell. When assembling the fixture assembly, the fixing plate 4 is first fixed to the top of the lower pad 3 by the positioning pin 6. Then, the liquid crystal cell to be leveled is placed into the slot 5 of the fixing plate 4. Finally, the upper pad 2 is connected to the fixing plate 4 by the positioning pin 6. At least one set of fixture assemblies containing liquid crystal cells is placed into the support shell 1. Then, the leveling assembly is activated. The leveling assembly applies pressure to the upper pad 2, extruding excess liquid crystal from the liquid crystal cell through the extrusion port of the liquid crystal cell. The extrusion port of the liquid crystal cell is then sealed and cured by the worker. Multiple fixture assemblies can be stacked to level multiple sets of liquid crystal cells at once. Due to the presence of the fixing plate 4, the liquid crystal cell is located in the slot 5 of the fixing plate 4. The fixing plate 4 fills the gaps between the liquid crystal cells, thereby ensuring that the top and sides of the liquid crystal cell are evenly stressed. It also prevents the liquid crystal cell from shifting during the leveling process, ensuring the leveling quality of the liquid crystal cell.

[0022] like Figure 3 and Figure 4As shown, the leveling assembly further includes: a pressure plate 7, which is disposed in the mounting groove of the support shell 1. Both ends of the pressure plate 7 are provided with support shafts 8. Both ends of the top of the support shell 1 are provided with through holes. Each support shaft 8 is slidably connected to the corresponding through hole. The bottom of the pressure plate 7 is provided with an air bladder 9. An air pipe 10 passes through the top of the pressure plate 7. One end of the air pipe 10 passes vertically downwards through the pressure plate 7 and communicates with the air bladder 9. The other end of the air pipe 10 passes vertically upwards out of the support shell 1. The support shell 1 has air holes through which the air pipe 10 passes. Each support shaft 8 is provided with an adjusting component for adjusting the relative distance between the pressure plate 7 and the top of the support shell 1. The pressure plate 7 is vertically slidably disposed in the mounting groove via the support shafts 8. The adjusting component restricts the sliding of the support shafts 8, adjusting the relative position of the pressure plate 7 and the top of the support shell 1 to accommodate the height after multiple clamping assemblies are overlapped. During the leveling of the liquid crystal cell, the air bladder 9 is inflated through the air tube 10. After the air bladder 9 is inflated, it applies downward pressure to the upper pad 2, thereby squeezing out the excess liquid crystal in the liquid crystal cell and ensuring that the cell thickness of the liquid crystal cell is uniform.

[0023] like Figure 2 As shown, each adjusting component further includes a first nut 11, and a first nut 11 is screwed onto each support shaft 8. The first nut 11 is located above the support shell 1. In this embodiment, a support shaft 8 is fixed to the top of each end of the pressure plate 7. Both support shafts 8 pass through the top of the support shell 1 and are slidably connected to the support shell 1. The first nut 11 is locked onto the top of the support shell 1, so that the pressure plate 7 is suspended in the mounting groove. The operator stacks several clamping assemblies in the mounting groove. According to the stacking height of the clamping assemblies, the first nut 11 on the support columns at both ends of the pressure plate 7 is rotated to adjust the position of the pressure plate 7 in the mounting groove. This allows the airbag 9 on the pressure plate 7 to apply pressure to the clamping assemblies after inflation, thereby leveling the liquid crystal cells placed inside the clamping assemblies. By rotating and adjusting the first nut 11, the pressure plate 7 can perform leveling operations on the liquid crystal cells in clamping assemblies with different overlapping heights.

[0024] like Figure 2 As shown, further, a second nut 12 is also included. Each support shaft 8 is threaded with a second nut 12, which is located in the mounting groove. The second nut 12 is located between the top of the support shell 1 and the pressure plate 7. The second nut 12 cooperates with the first nut 11 to fix the horizontal height of the pressure plate 7 in the mounting groove. In one embodiment, only one set of clamping assemblies is placed in the mounting groove of the support shell 1. In this case, by turning the first nut 11 and the second nut 12, the horizontal height of the pressure plate 7 is adjusted downward, so that the airbag 9 can contact the upper pad 2 of the clamping assembly after inflation, thereby performing a leveling operation on the liquid crystal cell in the clamping assembly at the lower position in the mounting groove.

[0025] like Figure 4As shown, furthermore, a sealing strip 13 is provided around the bottom of the pressure plate 7, forming a receiving cavity in which the airbag 9 is embedded. The sealing strip 13 forms a receiving cavity at the bottom of the pressure plate 7, providing a relatively fixed space for the airbag 9. This allows the airbag 9 to extend according to a predetermined shape and position during inflation and expansion, ensuring the relative position of the pressure plate 7 and the airbag 9 remains stable during long-term use, preventing displacement or deformation. Simultaneously, it ensures uniform contact between the airbag 9 and the pressure plate 7, resulting in uniform pressure applied to the pressure plate 7 and improving the leveling quality of the liquid crystal cell.

[0026] like Figure 5 As shown, the support shell 1 further includes a mounting shell 101 and a top cover 102. The mounting shell 101 has an opening at the top, and the top cover 102 is detachably mounted on the top of the mounting shell 101. Specifically, in this embodiment, the top cover 102 is detachably connected to the mounting shell 101 by screws. The top cover 102 is used to close the opening at the top of the mounting shell 101 and also provides a carrier for mounting components such as the pressure plate 7, support column, and air tube 10. During subsequent maintenance of components such as the airbag 9, the top cover 102 can be removed for easy maintenance by personnel.

[0027] Furthermore, the airbag 9 is made of high-pressure-resistant rubber. High-pressure-resistant rubber has good elasticity and flexibility, which can evenly transmit pressure to the pressure plate 7 when the airbag 9 is inflated, thereby enabling the pressure plate 7 to apply uniform pressure to the liquid crystal cell and withstand high pressure. Workers can adjust the pressure of the pressure plate 7 by controlling the inflation amount of the airbag 9, thereby meeting the leveling operation of liquid crystal cells of different specifications.

[0028] Furthermore, both the support shell 1 and the pressure plate 7 are made of hard alloy material. Specifically, the hard alloy material can be stainless steel. The stainless steel support shell 1 and pressure plate 7 can withstand greater external forces without deformation or damage. The support shell 1 ensures the structural stability of the entire device during long-term use, guaranteeing smooth leveling operations. The pressure plate 7 remains undeformed despite being subjected to the reaction force of the airbag 9 for extended periods, resulting in a long service life. Simultaneously, the smooth surface of stainless steel makes cleaning the device easier.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A special fixture for leveling LCOS liquid crystal packaging cells, characterized in that, include: The support shell (1) has a mounting groove on one side, and at least one clamping assembly for clamping the liquid crystal cell is movably provided in the mounting groove. Each fixture assembly includes: an upper pad (2), a lower pad (3) and a fixing plate (4). The fixing plate (4) has several slots (5) at equal intervals for inserting the liquid crystal cell. One side of the slot (5) has a notch that communicates with the outside. Each fixing plate (4) has several positioning pins (6) on both sides. Each upper pad (2) and lower pad (3) has positioning holes that cooperate with the positioning pins (6). The leveling assembly is disposed inside the support shell (1) and is used to apply downward pressure to the upper pad (2).

2. The LCOS liquid crystal packaging cell leveling fixture as described in claim 1, characterized in that, The leveling assembly includes: a pressure plate (7), which is set in the mounting groove of the support shell (1). Both ends of the pressure plate (7) are provided with support shafts (8). Both ends of the top of the support shell (1) are provided with through holes. Each support shaft (8) is slidably connected to the corresponding through hole. The bottom of the pressure plate (7) is provided with an airbag (9). The top of the pressure plate (7) is provided with an air pipe (10). One end of the air pipe (10) passes vertically downward through the pressure plate (7) and communicates with the airbag (9). The other end of the air pipe (10) passes vertically upward through the support shell (1). The support shell (1) is provided with an air hole through which the air pipe (10) passes. Each support shaft (8) is provided with an adjusting component for adjusting the relative distance between the pressure plate (7) and the top of the support shell (1).

3. The LCOS liquid crystal packaging cell leveling fixture as described in claim 2, characterized in that: Each adjusting component includes a first nut (11), and each support shaft (8) is screwed with a first nut (11), the first nut (11) being located above the support shell (1).

4. The LCOS liquid crystal packaging cell leveling fixture as described in claim 3, characterized in that: It also includes a second nut (12), which is threaded onto each support shaft (8) and is located in the mounting groove.

5. A special fixture for leveling LCOS liquid crystal packaging cells as described in claim 2, characterized in that: The bottom of the pressure plate (7) is surrounded by a sealing strip (13), which forms a receiving cavity, and the airbag (9) is embedded in the receiving cavity.

6. The LCOS liquid crystal packaging cell leveling fixture as described in claim 1, characterized in that: The support shell (1) includes a mounting shell (101) and a top cover (102), with the top of the mounting shell (101) having an opening and the top cover (102) being detachably disposed on the top of the mounting shell (101).

7. The LCOS liquid crystal packaging cell leveling fixture as described in claim 2, characterized in that: The airbag (9) is made of high pressure resistant rubber.

8. A special fixture for leveling LCOS liquid crystal packaging cells as described in claim 2, characterized in that: The support shell (1) and the pressure plate (7) are both made of hard alloy material.

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