Temperature control alignment mechanism

Abstract

A temperature control alignment mechanism comprises a bearing table; the temperature control alignment plate is located on the bearing table and provided with a plurality of protrusions, the protrusions extend back to the bearing table, and the height of the protrusions is a first numerical value; the heat transfer plate is located on the temperature control alignment plate and comprises a first part, the thickness of the first part is a first thickness, and the first thickness is not smaller than a first numerical value; and the position of the second part corresponds to that of the bulge so as to avoid the bulge. The second part can avoid the bulge, so that the heat transfer plate is in surface contact with glass for manufacturing the liquid crystal panel, the glass is in full contact with the heat transfer plate, the temperature uniformity of each part of the glass is improved, the heat expansion and cold contraction degrees of each part of the glass are the same, and the finished product yield of the liquid crystal panel is improved; and moreover, the heat transfer plate is arranged on the temperature control alignment plate, so that the problem of temperature uniformity can be solved without greatly changing the existing equipment, the cost control is favorably reduced and improved, and the working hours are prevented from being occupied.

Description

Technical Field

[0001] This utility model relates to the field of substrate handling technology, and in particular to a temperature control alignment mechanism. Background Technology

[0002] With the development of the information age, screens, as windows for human-computer interaction, are becoming increasingly closely connected with our daily lives and work. LCD screens, as the most commonly used screens, are widely used in laptop screens, television screens, and automotive displays.

[0003] However, some problems have been encountered in the manufacturing and transportation of LCD displays. The surface of the alignment mechanism currently used has several uneven bumps, which makes the contact between the glass used to manufacture the LCD panel and the surface of the alignment mechanism incomplete. Temperature differences exist in different parts of the glass surface, which seriously affects the yield of the finished LCD panel. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a temperature control and alignment mechanism that effectively improves the temperature uniformity of various parts of the glass used to manufacture LCD panels and improves the yield of finished LCD panels.

[0005] To address the aforementioned problems, this utility model provides a temperature control alignment mechanism, comprising: a support platform; a temperature control alignment plate located on the support platform, the temperature control alignment plate having a plurality of protrusions extending away from the support platform, the height of the protrusions being a first value; and a heat transfer plate located on the temperature control alignment plate, the heat transfer plate comprising: a first part having a thickness of a first thickness, the first thickness being not less than the first value; and a second part having a position corresponding to the protrusions to avoid the protrusions.

[0006] Optionally, the thermal conductivity of the heat transfer plate is greater than 400 W / (m·K).

[0007] Optionally, the second part has a second thickness, and the difference between the first thickness and the second thickness is not less than the first value.

[0008] Optionally, the projection of the heat transfer plate onto the temperature control alignment plate is located within the range of the temperature control alignment plate.

[0009] Optionally, the projection of the protrusion onto the heat transfer plate is located within the range of the second part.

[0010] Optionally, the area of ​​the projection of the protrusion onto the heat transfer plate is not less than the area of ​​the second part.

[0011] Optionally, the projection of the first part onto the heat transfer plate is located within the flat plate area, wherein the flat plate area is the area of ​​the temperature control alignment plate excluding the protrusion.

[0012] Optionally, the heat transfer plate has a first surface facing the temperature control alignment plate, and at least one of the first surfaces of the first portion and the second portion is in contact with the surface of the temperature control alignment plate facing away from the support platform.

[0013] Optionally, the first surface of the first part contacts the surface of the temperature control alignment plate facing away from the support platform.

[0014] Optionally, the first surface of the second part contacts the surface of the temperature control alignment plate facing away from the support platform.

[0015] Optionally, the heat transfer plate and the temperature control alignment plate are fixed together by thermally conductive adhesive.

[0016] Optionally, the thermally conductive adhesive is located around the perimeter of the heat transfer plate.

[0017] Optionally, the temperature control and alignment mechanism is used to support the glass undergoing alignment processing.

[0018] Optionally, it also includes a temperature control system located within the temperature control alignment plate.

[0019] Optionally, it also includes: several through holes penetrating the temperature control alignment plate and the heat transfer plate; and a pin lifting mechanism passing through each through hole.

[0020] Compared with the prior art, the technical solution of this utility model embodiment has the following beneficial effects:

[0021] The temperature control alignment mechanism provided by this utility model has a heat transfer plate located on a temperature control alignment plate with several protrusions. The second part can avoid the protrusions so that the heat transfer plate can make surface contact with the glass used to manufacture the liquid crystal panel. The contact between the glass and the heat transfer plate is sufficient, which improves the temperature uniformity of the glass and makes the degree of thermal expansion and contraction of the glass uniform, thereby improving the yield of the finished liquid crystal panel. Moreover, by setting the heat transfer plate on the temperature control alignment plate, the temperature uniformity problem can be improved without making major modifications to the existing equipment, which is conducive to reducing improvement costs and avoiding the occupation of time. Attached Figure Description

[0022] Figure 1 This is a top view of the temperature control and alignment mechanism in an embodiment of this utility model.

[0023] Figure 2 This is a cross-sectional view of the temperature control and alignment mechanism in an embodiment of this utility model. Detailed Implementation

[0024] As described in the background art, during the transfer of the liquid crystal panel, the temperature control alignment plate has several protrusions. When the temperature control alignment plate comes into contact with the glass used to manufacture the liquid crystal panel, the temperature control alignment plate contacts the glass through the protrusions. The contact area between the protrusions and the glass is limited and the contact is insufficient, which can easily lead to large temperature differences in different parts of the glass. The degree of thermal expansion and contraction in different parts of the glass is different, thereby reducing the yield of the finished liquid crystal panel.

[0025] To address the aforementioned technical problems, this utility model provides a temperature control alignment mechanism. A heat transfer plate is disposed on a temperature control alignment plate with several protrusions. The second part of the heat transfer plate can avoid the protrusions, allowing the heat transfer plate to make surface contact with the glass used to manufacture the LCD panel. The contact between the glass and the heat transfer plate is sufficient, improving the temperature uniformity of the glass and ensuring that the degree of thermal expansion and contraction is the same throughout the glass, thereby increasing the yield of the finished LCD panel. Moreover, by disposing of the heat transfer plate on the temperature control alignment plate, the temperature uniformity problem can be improved without making significant modifications to existing equipment, which is beneficial for reducing improvement costs and avoiding the need for additional labor.

[0026] To make the above-mentioned objectives, features and beneficial effects of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Figure 1 and Figure 2 This is a schematic diagram of a temperature control alignment mechanism according to an embodiment of the present invention. Figure 1 Heat transfer plate 103 is not shown in the image. Figure 2 yes Figure 1 A cross-sectional view along the X1X2 direction shows that the temperature control alignment mechanism includes: a support platform 100; a temperature control alignment plate 101 located on the support platform 100, the temperature control alignment plate 101 having a plurality of protrusions 102 extending away from the support platform 100, the height of the protrusions 102 being a first value; and a heat transfer plate 103 located on the temperature control alignment plate 101, the heat transfer plate 103 including: a first part I, the thickness of the first part I being a first thickness, the first thickness being not less than the first value; and a second part II, the position of the second part II corresponding to the protrusions 102 to avoid the protrusions 102.

[0028] Please continue to refer to this. Figure 1 and Figure 2 The temperature control and alignment mechanism includes a support platform 100.

[0029] The support platform 100 is used to provide support for the temperature control alignment plate 101.

[0030] Please continue to refer to this. Figure 1 and Figure 2The temperature control alignment mechanism includes a temperature control alignment plate 101 located on the support platform 100. The temperature control alignment plate 101 has a plurality of protrusions 102, which extend away from the support platform 100, and the height of the protrusions 102 is a first value.

[0031] The first value ranges from 14mm to 20mm. Specifically, in this embodiment, the first value is 16mm. In other embodiments, the first value is another value.

[0032] Specifically, in this embodiment, the diameter of the protrusion 102 is 10mm; the height of the protrusion 102 is 16mm; and the distance between adjacent protrusions 102 is 80mm.

[0033] The material of the protrusion 102 includes iron and aluminum alloy.

[0034] Specifically, in this embodiment, the thickness of the temperature control alignment plate 101 ranges from 40mm to 200mm.

[0035] The dimensions of the temperature control alignment plate 101 are adapted to match the dimensions of the color filter. The projection of the color filter onto the surface of the support stage 100 is located within the projection range of the temperature control alignment plate 101 onto the surface of the support stage 100. The relationship between the area of ​​the temperature control alignment plate 101 and the area of ​​the color filter is: 101%S 彩色滤光片 ≤S 控温对位板101 ≤120%S 彩色滤光片 If the area of ​​the temperature control alignment plate 101 is too small, it will not be able to cover the entire color filter; if the area of ​​the temperature control alignment plate 101 is too large, it will result in waste and increase energy consumption. Specifically, in some embodiments of this utility model, the size of the color filter is 1100mm × 1250mm, and the area of ​​the color filter is 1.43 square meters. Correspondingly, the area range of the temperature control alignment plate 101 adapted to the 1100mm × 1250mm color filter is 1.573 square meters to 1.716 square meters; specifically, in some embodiments of this utility model, the area of ​​the temperature control alignment plate 101 is 1.69 square meters.

[0036] The temperature control alignment plate 101 is made of iron and aluminum alloy.

[0037] Please continue to refer to Figure 1 and Figure 2The temperature control alignment mechanism includes a heat transfer plate 103 located on the temperature control alignment plate 101. The heat transfer plate 103 includes a first part I, the thickness of the first part I being a first thickness, which is not less than the first value; and a second part II, the position of the second part II corresponding to the protrusion 102 to avoid the protrusion 102.

[0038] A heat transfer plate 103 is provided on the temperature control alignment plate 101 with several protrusions 102. The second part II of the heat transfer plate 103 can avoid the protrusions 102. The second surface of the heat transfer plate 103 facing away from the temperature control alignment plate 101 is flat, so that the second surface of the heat transfer plate 103 can make surface contact with the glass used to manufacture the liquid crystal panel. The contact between the glass and the heat transfer plate 103 is sufficient, which improves the temperature uniformity of the glass and makes the degree of thermal expansion and contraction of the glass uniform, thereby improving the yield of the finished liquid crystal panel. Moreover, by providing the heat transfer plate 103 on the temperature control alignment plate 101, the temperature uniformity problem can be improved without making major modifications to the existing equipment, which is conducive to reducing improvement costs and avoiding the occupation of time.

[0039] The thermal conductivity of the heat transfer plate 103 is greater than 400 W / (m·K).

[0040] The heat transfer plate 103 has a first surface facing the temperature control alignment plate 101, and at least one of the first surfaces of the first part I and the second part II is in contact with the surface of the temperature control alignment plate 101 facing away from the support platform 100. The surface of the temperature control alignment plate 101 facing away from the support platform 100 includes a surface with a protrusion 102 and a surface with a flat plate area, wherein the flat plate area is the area of ​​the temperature control alignment plate 101 other than the protrusion 102.

[0041] In one embodiment, the first surface of the first part is in contact with the surface of the temperature control alignment plate facing away from the support platform.

[0042] In another embodiment, the first surface of the second part is in contact with the surface of the temperature control alignment plate facing away from the support platform.

[0043] Specifically, in this embodiment, the first surface of the first part I and the first surface of the second part II are both in contact with the surface of the temperature control alignment plate 101 facing away from the support platform 100.

[0044] In one embodiment, the projection of the heat transfer plate 103 onto the temperature control alignment plate 101 is located within the range of the temperature control alignment plate 101. Specifically, in this embodiment, the projection of the heat transfer plate 103 onto the temperature control alignment plate 101 coincides with the range of the temperature control alignment plate 101.

[0045] The first part I of the heat transfer plate 103 is adjacent to the second part II of the heat transfer plate 103.

[0046] In one embodiment, the projection of the protrusion 102 onto the heat transfer plate 103 is located within the range of the second part II. Specifically, in this embodiment, the projection of the protrusion 102 onto the heat transfer plate 103 coincides with the range of the second part II.

[0047] Specifically, the area of ​​the projection of the protrusion 102 onto the heat transfer plate 103 is not less than the area of ​​the second part II. In this embodiment, the area of ​​the projection of the protrusion 102 onto the heat transfer plate 103 is equal to the area of ​​the second part II.

[0048] The projection of the first part I onto the heat transfer plate 103 lies within the flat plate region, wherein the flat plate region is the area of ​​the temperature control alignment plate 101 excluding the protrusion 102. Specifically, the area of ​​the projection of the first part I onto the heat transfer plate 103 is not less than the area of ​​the flat plate region. In this embodiment, the projection of the first part I onto the heat transfer plate 103 coincides with the area of ​​the flat plate region. Specifically, in this embodiment, the area of ​​the projection of the first part I onto the heat transfer plate 103 is equal to the area of ​​the flat plate region.

[0049] The dimensions of the heat transfer plate 103 are adapted to the dimensions of the temperature control alignment plate 101. Specifically, in some embodiments of this utility model, the projection range of the heat transfer plate 103 on the surface of the support platform 100 is the same as the projection range of the temperature control alignment plate 101 on the surface of the support platform 100, and the dimensions of the heat transfer plate 103 are equal to the area of ​​the temperature control alignment plate 101. Since the relationship between the area of ​​the temperature control alignment plate 101 and the area of ​​the color filter is: 101%S 彩色滤光片 ≤S 控温对位板101 ≤120%S 彩色滤光片 Therefore, the area range of the heat transfer plate 103 is: 101%S 彩色滤光片 ≤S 控温对位板101 ≤120%S 彩色滤光片 In some embodiments of this utility model, the area of ​​the temperature control alignment plate 101 is 1.69 square meters, and therefore the area of ​​the heat transfer plate 103 is 1.69 square meters.

[0050] The operating temperature range of the heat transfer plate 103 is 22℃~24℃.

[0051] The heat transfer plate 103 is a metal plate. The heat transfer plate 103 can be at least one of copper plate, iron plate and aluminum plate. Specifically, in this embodiment, the heat transfer plate 10 is a copper plate.

[0052] The second part II has a second thickness, and the difference between the first thickness and the second thickness is not less than the first value. The heat transfer plate 103 has a side facing the temperature control alignment plate 101, and the second part II and the first part I form an opening extending away from the temperature control alignment plate 101. The position of the opening corresponds to the position of the protrusion 102, which can effectively avoid the protrusion 102.

[0053] Furthermore, the heat transfer plate 103 has a flat second surface facing away from the temperature control alignment plate 101. When the temperature control alignment mechanism is used to manufacture the glass contact of the liquid crystal panel, the heat transfer plate 103 contacts the glass through the flat second surface. The contact area between the second surface and the glass is larger and the contact is more sufficient, which can effectively reduce the temperature difference in various parts of the glass and make the degree of thermal expansion and contraction in various parts of the glass more similar, thereby effectively improving the yield of the finished liquid crystal panel.

[0054] Specifically, in this embodiment, the size range of the heat transfer plate 103 includes: the maximum thickness of the heat transfer plate 103 is 25mm. In this embodiment, the maximum thickness is the thickness of the first part I. Specifically, in this embodiment, the first thickness is 25mm; the second thickness is 9mm. In other embodiments, the first thickness and the second thickness of the heat transfer plate are other values.

[0055] Specifically, in this embodiment, the heat transfer plate 103 and the temperature control alignment plate 101 are fixed together by thermally conductive adhesive. The thermally conductive adhesive is located around the heat transfer plate 103.

[0056] The thermally conductive adhesive is made of a copper-containing binder.

[0057] The periphery of the heat transfer plate 103 refers to the outer circumference of the first surface of the heat transfer plate 103 near the edge. Thermally conductive adhesive is used to fix the heat transfer plate 103 to the temperature control alignment plate 101, ensuring that the heat transfer plate 103 does not shift relative to the temperature control alignment plate 101, thus improving the accuracy of the alignment process. The thermally conductive adhesive is only applied to the outer circumference of the first surface of the temperature control alignment plate 101 near the edge, and not between the protrusion 102 and the heat transfer plate 103. Therefore, the material of the thermally conductive adhesive does not affect the heat uniformity of the glass used in manufacturing the LCD panel.

[0058] The temperature control alignment mechanism also includes a temperature control system located within the temperature control alignment plate 101.

[0059] The temperature control system is used to control the temperature of the heat transfer plate 103 and the temperature alignment plate 101 with several protrusions 102. Although the protrusions 102 and the heat transfer plate 103 are made of different materials, have different thermal conductivity, and have different instantaneous heat transfer capabilities, the temperature control system in this solution maintains a constant temperature and is turned on for a long time, which can ensure that the second part II and the first part I of the heat transfer plate 103 absorb the same amount of heat, and that the temperature of all parts of the heat transfer plate 103 is the same, thereby making the temperature of all parts of the glass used to manufacture the liquid crystal panel the same.

[0060] The operating temperature range of the temperature control alignment plate 101 is 22℃~24℃.

[0061] The temperature control system includes several cooling water pipes. The function of the cooling water pipes is to cool the temperature control alignment plate 101.

[0062] Please continue to refer to this. Figure 1 and Figure 2 The temperature control alignment mechanism further includes a plurality of through holes 104 penetrating the temperature control alignment plate 101 and the heat transfer plate 103.

[0063] Specifically, in this embodiment, the diameter of the through hole 104 is 25mm; the distance between adjacent through holes 104 is 400mm.

[0064] The through hole 104 provides a receiving position for the ejector pin lifting mechanism.

[0065] Please continue to refer to this. Figure 1 and Figure 2 The temperature control and alignment mechanism also includes a pin lifting mechanism that passes through each through hole 104.

[0066] The ejector pin lifting mechanism lifts the glass used to manufacture the liquid crystal panel from the surface of the temperature control alignment plate 101, thereby completing the glass transfer.

[0067] The temperature control and alignment mechanism is used to carry the glass for alignment processing. After alignment processing, the glass is transferred to the exposure mechanism for exposure and patterning processing.

[0068] The time range for the alignment process is 18s to 22s.

[0069] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A temperature control and alignment mechanism, characterized in that, include: Support platform; A temperature control alignment plate is located on the support platform. The temperature control alignment plate has a plurality of protrusions that extend away from the support platform. The height of the protrusions is a first value. A heat transfer plate located on the temperature control alignment plate, the heat transfer plate comprising: a first part, the thickness of the first part being a first thickness, the first thickness being not less than the first value; The second part is positioned to correspond to the protrusion in order to avoid the protrusion.

2. The temperature control and alignment mechanism as described in claim 1, characterized in that, The heat transfer plate has a thermal conductivity greater than 400 W / (m·K).

3. The temperature control and alignment mechanism as described in claim 1, characterized in that, The second part has a second thickness, and the difference between the first thickness and the second thickness is not less than the first value.

4. The temperature control and alignment mechanism as described in claim 1, characterized in that, The projection of the heat transfer plate onto the temperature control alignment plate is located within the range of the temperature control alignment plate.

5. The temperature control and alignment mechanism as described in claim 1, characterized in that, The projection of the protrusion onto the heat transfer plate is located within the range of the second part.

6. The temperature control and alignment mechanism as described in claim 5, characterized in that, The area of ​​the projection of the protrusion onto the heat transfer plate is not less than the area of ​​the second part.

7. The temperature control and alignment mechanism as described in claim 1, characterized in that, The projection of the first part onto the heat transfer plate is located within the flat plate area, wherein the flat plate area is the area of ​​the temperature control alignment plate excluding the protrusion.

8. The temperature control and alignment mechanism as described in claim 1, characterized in that, The heat transfer plate has a first surface facing the temperature control alignment plate, and at least one of the first surfaces of the first portion and the second portion is in contact with the surface of the temperature control alignment plate facing away from the support platform.

9. The temperature control and alignment mechanism as described in claim 8, characterized in that, The first surface of the first part is in contact with the surface of the temperature control alignment plate facing away from the support platform.

10. The temperature control and alignment mechanism as described in claim 9, characterized in that, The first surface of the second part is in contact with the surface of the temperature control alignment plate facing away from the support platform.

11. The temperature control and alignment mechanism as described in claim 1, characterized in that, The heat transfer plate and the temperature control alignment plate are fixed together by thermally conductive adhesive.

12. The temperature control and alignment mechanism as described in claim 11, characterized in that, The thermally conductive adhesive is located around the heat transfer plate.

13. The temperature control and alignment mechanism as described in claim 1, characterized in that, The temperature control and alignment mechanism is used to support the glass undergoing alignment processing.

14. The temperature control and alignment mechanism as described in claim 1, characterized in that, Also includes: The temperature control system is located within the temperature control alignment plate.

15. The temperature control and alignment mechanism as described in claim 1, characterized in that, Also includes: Several through holes penetrating the temperature control alignment plate and the heat transfer plate; a pin lifting mechanism passing through each through hole.

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