CN209568138U - A kind of evaporation source retaining device and evaporated device - Google Patents

A kind of evaporation source retaining device and evaporated device Download PDF

Info

Publication number
CN209568138U
CN209568138U CN201920211876.9U CN201920211876U CN209568138U CN 209568138 U CN209568138 U CN 209568138U CN 201920211876 U CN201920211876 U CN 201920211876U CN 209568138 U CN209568138 U CN 209568138U
Authority
CN
China
Prior art keywords
evaporation source
pedestal
baffle
retaining device
overhead gage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920211876.9U
Other languages
Chinese (zh)
Inventor
李奂钦
江李
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Chi Chi Innovation Materials Research Institute Co Ltd
Ningbo Lu Milan New Materials Co Ltd
Original Assignee
Ningbo Chi Chi Innovation Materials Research Institute Co Ltd
Ningbo Lu Milan New Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Chi Chi Innovation Materials Research Institute Co Ltd, Ningbo Lu Milan New Materials Co Ltd filed Critical Ningbo Chi Chi Innovation Materials Research Institute Co Ltd
Priority to CN201920211876.9U priority Critical patent/CN209568138U/en
Application granted granted Critical
Publication of CN209568138U publication Critical patent/CN209568138U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Physical Vapour Deposition (AREA)

Abstract

The utility model provides a kind of evaporation source retaining device and evaporated device, the retaining device from top to bottom sequentially connected overhead gage, extend baffle and pedestal;The angle for extending baffle and pedestal is β, 0 ° < β≤90 °;The overhead gage and the angle for extending baffle are θ, 90 ° of 180 ° of < θ <;Evaporation source retaining device has the advantages of simple structure and easy realization, and on the one hand can effectively prevent material in evaporation source evaporation process and deposits to outside evaporation source, prevents evaporation source surface contaminated, on the other hand convenient for the recycling purification and recycling of evaporation source material;The evaporated device can be effectively reduced production cost, and wherein the recycling rate of waterused of evaporation source material is up to 55%.

Description

A kind of evaporation source retaining device and evaporated device
Technical field
The utility model belongs to vapor deposition field more particularly to a kind of evaporation source retaining device and evaporated device.
Background technique
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) display device is good because having Picture quality, can self-luminous, without visual angle obstacle, operating temperature range is big the advantages that, have been considered as after liquid crystal display device it The most display device of new generation of market value afterwards.Usual OLED is made of evaporation process, is deposited according to demand on substrate Different organic materials and inorganic material, to form organic luminescent device.The cavity wall of evaporation process chamber, which will use, prevents plate It is protected, prevents that plate for stopping to unused evaporation material, prevents it from adhering in cavity wall and is difficult to clean off, causes Part of appliance damage.
At present mainly using vaporizing-source system and line vaporizing-source system in OLED evaporation coating technique.Using evaporation source In OLED deposition system, the effective rate of utilization of material is only 5%, remaining 95% material is largely evaporated to cavity surrounding Prevent on plate;Since cavity area is big, it is attached to cavity surrounding and prevents that the film layer on plate is very thin, and is attached in order to increase material Property, prevent plate be typically all use surface sand-blasting process, so evaporation after material be difficult Collection utilization again;Point at present Evaporation source baffle is generally a cylindrical design, covers on outside evaporation source, and effect is to prevent from depositing in material evaporation process adding Outside heat source, evaporation source surface is prevented to be contaminated.
A cavity configures 8-10 evaporation source and is used to that different OLED materials to be deposited in point evaporation source deposition system, due to Multiple material is deposited in the same cavity, so the material for depositing to cavity surrounding is a variety of mixing, even if a small amount of collect Also it is difficult to be purified again afterwards.
Therefore it provides a kind of retaining device convenient for evaporation source material recovery utilization rate is highly desirable.
Utility model content
The purpose of this utility model is to provide a kind of evaporation source retaining device and evaporated device, apparatus structure letters It is single, it on the one hand can effectively prevent and deposited to outside evaporation source in evaporation source evaporation process, prevent evaporation source surface contaminated, it is another Aspect purifies convenient for the recycling of evaporation source material and recycling;The evaporated device can be effectively reduced production cost, wherein The recycling rate of waterused of evaporation source material is up to 55%.
To reach this purpose of utility model, the utility model uses following technical scheme:
One of the purpose of this utility model is to provide a kind of evaporation source retaining device, the retaining device include from up to Under sequentially connected overhead gage, extend baffle and pedestal;The baffle and the angle of pedestal of extending is β, 0 ° of β≤90 ° <;Institute Stating overhead gage and extending the angle of baffle is θ, 90 ° of 180 ° of < θ <.
Evaporation source retaining device includes sequentially connected overhead gage from top to bottom, extension baffle and bottom in the utility model Seat, the connection type between them are to be detachably connected, and can also be non-dismountable connection, and the mode being detachably connected can be card Button connection, or welding, specific connection type those skilled in the art can be adjusted according to actual needs.
In the utility model, the angle for extending baffle and pedestal is β, and occurrence those skilled in the art of angle are according to reality Border needs to be adjusted, and the angle for preferably extending over baffle and pedestal is 90 °, is convenient for industrial production and application.
The utility model in the base can be cylindrical shape, or other shapes, or plate etc., specifically Shape and material those skilled in the art can be adjusted according to actual needs, its purpose is to prevent evaporation source, avoid Because of the waste and destruction of evaporation source caused by other uncontrollable factors.
In the present invention, the baffle and the angle of pedestal of extending is 90 °.
In the present invention, the extension baffle is arc;The a length of C of the circumference of the pedestal, the extension baffle Arc length is l, l≤0.5C.
In the utility model, it can be circular arc, or elliptic arc, concrete condition this field that extension baffle, which is arc, Technical staff can be adjusted according to actual needs;Extend baffle can be radian and the adjustable extension baffle of arc length, can also Think uncontrollable;Specific radian and arc length those skilled in the art can be adjusted according to actual needs.
In the present invention, described to extend the extension baffle that baffle is high temperature resistant or vacuum-resistant material.
In the utility model, extend the extension baffle that baffle is high temperature resistant or vacuum-resistant material, on the one hand the temperature of vapor deposition Higher, extending baffle at relatively high temperatures will not be destroyed, and will not react with evaporation material, on the other hand, be easy to steam Plate removing, recycling and the recycling of material.
In the present invention, the overhead gage is the overhead gage of high temperature resistant or vacuum-resistant material.
In the utility model, overhead gage is the overhead gage of high temperature resistant or vacuum-resistant material, and on the one hand the temperature of vapor deposition is higher, Overhead gage will not be destroyed at relatively high temperatures, will not be reacted with evaporation material, on the other hand, be easy to evaporation material Removing, recycling and recycling.
In the present invention, the length of the overhead gage is L, and vertical range of the overhead gage on pedestal is a, a=L cos(θ-90°);The radius of the pedestal (3) is R;A≤the R.
In the utility model, a≤R will affect evaporation source to the vapor deposition process of substrate, to influence to be deposited if a > R Effect.
Overhead gage can be arc in the utility model, or non-arc, those skilled in the art can be according to reality It needs to be adjusted.
In the utility model, the overhead gage surface is additionally provided with partition.
In the utility model, the effect of partition is to increase material bond area, and material is made more effectively to be attached to overhead gage Device, if it's not true, material may cause material from edge spilling or material upper when a large amount of evaporations It falls off to fall back in evaporation source when baffle adds up blocked up, causes crucible plug-hole etc..
The two of the purpose of this utility model are to provide a kind of evaporated device, and the evaporated device includes evaporation source, substrate And baffle;Evaporation source retaining device described in one of for the purpose of the baffle.
In the present invention, the axis of the evaporation source and the axial location of pedestal are identical;The substrate and evaporation source The vertical range of the base bottom of retaining device is H, and the height of evaporation source retaining device is h, the h < H.
In the present invention, the vertical range at evaporation source (4) center to substrate (5) center is S;The evaporation source (4) radius is r;The radius of the pedestal (3) is R;The r < R < S.
In the utility model, evaporation source retaining device is aside arranged when to substrate evaporation source for evaporation material in evaporation source, The chassis of one side evaporation source retaining device can place evaporation source, avoid because other uncontrollable factors cause evaporation source It destroys, on the other hand pollution and waste can effectively prevent and deposit to outside evaporation source in evaporation source evaporation process, prevent from steaming Surface of rising is contaminated, and convenient for the recycling of evaporation source material purification and recycling, so that production cost be effectively reduced.
Compared with the existing technology, the utility model has the following beneficial effects:
Evaporation source retaining device provided by the utility model has the advantages of simple structure and easy realization, and on the one hand can effectively prevent evaporation It is deposited to outside evaporation source in the evaporation process of source, prevents evaporation source surface contaminated, on the other hand returning convenient for evaporation source material Receive purification and recycling;The evaporated device can be effectively reduced production cost, wherein the recycling rate of waterused of evaporation source material Up to 55%.
Detailed description of the invention
Fig. 1 is the schematic diagram of evaporation source retaining device in the utility model embodiment 1;
Fig. 2 is the main view of evaporated device in the utility model embodiment 1.
Specific embodiment
The technical solution of the utility model is further illustrated below by specific embodiment.Those skilled in the art answer This is illustrated, and the embodiment, which is only to aid in, understands the utility model, is not construed as the concrete restriction to the utility model.
Embodiment 1
The present embodiment provides a kind of evaporation source retaining devices, as shown in Figure 1, on retaining device is sequentially connected from top to bottom Baffle 1 extends baffle 2 and pedestal 3, and the angle for extending baffle 2 and pedestal 3 is 90 °;Overhead gage 1 and the angle for extending baffle 2 It is 135 ° for θ, θ;Pedestal 3 is cylindrical shape, for placing evaporation source;The radius R of pedestal 3 is 45mm, Zhou Changwei 282.6mm;Prolong Stretching baffle 2 is arc, and the arc length for extending baffle is the half of pedestal perimeter, as 141.3mm;The material for extending baffle 2 is SUS Material;The vertical range a and R of overhead gage 1 on the base 3 are equal, are 45mm, then the length L=a/cos (θ -90 °) of overhead gage 1 =63.6mm;The material of overhead gage 1 is SUS material;Overhead gage surface is additionally provided with partition.
The present embodiment also provides a kind of evaporated device, as shown in Fig. 2, evaporated device include evaporation source 4, substrate 5 and on State the evaporation source retaining device;The axis of the evaporation source and the axial location of pedestal are identical;Substrate (5) and evaporation source gear The vertical range of pedestal (3) bottom of panel assembly is H, and H 750mm, the height of evaporation source retaining device is h, h 285mm;It steams The vertical range of origin centre to substrate center is S, S 440mm;Evaporation source radius is r, r 30mm.
In the present embodiment, evaporation source is placed into crucible, crucible is placed in the pedestal of evaporation source retaining device, The axis of middle evaporation source and the axial location of pedestal are identical;Evaporation source evaporation source for evaporation material on substrate is opened, vapor deposition terminates Afterwards, the evaporation source material on evaporation source retaining device, the rate of recovery 50%, the rate of recovery=recycling evaporation source material/steaming are recycled The evaporation source material of plating, then the utilization rate of evaporation source material is 55%, wherein the utilization rate of evaporation source material=point source evaporation source Effective rate of utilization+rate of recovery of material, wherein the effective rate of utilization of point source evaporation source material is 5%.
Embodiment 2
The present embodiment provides a kind of evaporation source retaining device, retaining device sequentially connected overhead gage, extension from top to bottom Baffle and pedestal, the angle for extending baffle and pedestal is 90 °;Overhead gage and the angle for extending baffle are θ, and θ is 150 °;Pedestal For cylindrical shape, for placing evaporation source;The radius R of pedestal is 45mm, Zhou Changwei 282.6mm;Extension baffle is arc, extends gear The arc length of plate is the one third of pedestal perimeter, as 94.2mm;The material for extending baffle is SUS material;Overhead gage is in pedestal On vertical range a and R it is equal, be 45mm, then length L=a/cos (θ -90 °)=90mm of overhead gage;The material of overhead gage For SUS material;Overhead gage surface is additionally provided with partition.
The present embodiment also provides a kind of evaporated device, and evaporated device includes evaporation source, substrate and evaporation described above Source retaining device;The axis of the evaporation source and the axial location of pedestal are identical;The pedestal bottom of substrate and evaporation source retaining device The vertical range in portion is H, and H 750mm, the height of retaining device is h, h 317.9mm;Substrate center is arrived at evaporation source center Vertical range is S, S 440mm;The radius of evaporation source is r, r 30mm.
In the present embodiment, evaporation source is placed into crucible, crucible is placed in the pedestal of evaporation source retaining device, The axis of middle evaporation source and the axial location of pedestal are identical;Evaporation source evaporation source for evaporation material on substrate is opened, vapor deposition terminates Afterwards, the evaporation source material on evaporation source retaining device is recycled, the rate of recovery 42%, then the utilization rate of evaporation source material is 47%.
Embodiment 3
The present embodiment provides a kind of evaporation source retaining device, retaining device sequentially connected overhead gage, extension from top to bottom Baffle and pedestal, the angle for extending baffle and pedestal is 90 °;Overhead gage and the angle for extending baffle are θ, and θ is 120 °;Pedestal For cylindrical shape, for placing evaporation source;The radius R of pedestal is 45mm, Zhou Changwei 282.6mm;Extension baffle is arc, extends gear The arc length of plate is 2/5ths of pedestal perimeter, as 113mm;The material for extending baffle is SUS material;Overhead gage is on pedestal Vertical range a and R it is equal, be 45mm, then length L=a/cos (θ -90 °)=52mm of overhead gage;The material of overhead gage is SUS material;Overhead gage surface is additionally provided with partition.
The present embodiment also provides a kind of evaporated device, and evaporated device includes evaporation source, substrate and evaporation described above Source retaining device;The axis of the evaporation source and the axial location of pedestal are identical;The pedestal bottom of substrate and evaporation source retaining device The vertical range in portion is H, and H 750mm, the height of retaining device is h, h 266mm;It hangs down to substrate center at evaporation source center Straight distance is S, S 440mm;The radius of evaporation source is r, r 30mm.
In the present embodiment, evaporation source is placed into crucible, crucible is placed in the pedestal of evaporation source retaining device, The axis of middle evaporation source and the axial location of pedestal are identical;Evaporation source evaporation source for evaporation material on substrate is opened, vapor deposition terminates Afterwards, the evaporation source material on evaporation source retaining device is recycled, the rate of recovery 43%, then the utilization rate of evaporation source material is 48%.
Embodiment 4
The present embodiment provides a kind of evaporation source retaining device, retaining device sequentially connected overhead gage, extension from top to bottom Baffle and pedestal, the angle for extending baffle and pedestal is 80 °;Overhead gage and the angle for extending baffle are θ, and θ is 130 °;Pedestal For cylindrical shape, for placing evaporation source;The radius R of pedestal is 45mm, Zhou Changwei 282.6mm;Extension baffle is arc, extends gear The arc length of plate is the half of pedestal perimeter, as 141.3mm;The material for extending baffle is SUS material;Overhead gage is on pedestal Vertical range a and R is equal, is 45mm, then length L=a/cos (θ -90 °)=58mm of overhead gage;The material of overhead gage is SUS Material;Overhead gage surface is additionally provided with partition.
The present embodiment also provides a kind of evaporated device, and evaporated device includes evaporation source, substrate and evaporation described above Source retaining device;The axis of the evaporation source and the axial location of pedestal are identical;The pedestal bottom of substrate and evaporation source retaining device The vertical range in portion is H, and H 750mm, the height of retaining device is h, h 256mm;It hangs down to substrate center at evaporation source center Straight distance is S, S 440mm;The radius of evaporation source is r, r 30mm.
In the present embodiment, evaporation source is placed into crucible, crucible is placed in the pedestal of evaporation source retaining device, The axis of middle evaporation source and the axial location of pedestal are identical;Evaporation source evaporation source for evaporation material on substrate is opened, vapor deposition terminates Afterwards, the evaporation source material on evaporation source retaining device is recycled, the rate of recovery 50%, then the utilization rate of evaporation source material is 55%.
Embodiment 5
Difference with embodiment 1 is only that vertical range a of the overhead gage on pedestal is 20mm, lower than the radius R of pedestal, Remaining structure and parameter are same as Example 1.
The rate of recovery of evaporation material is 30.7% (overhead gage area reduces about 55%) in the present embodiment, then evaporation source material Utilization rate be 35.7%, when vertical range of the overhead gage on pedestal be lower than pedestal radius when, overhead gage area reduce, from And the material that overhead gage is collected can also be reduced accordingly, will cause the waste of evaporation source material.
Embodiment 6
Difference with embodiment 1 is only that the arc length for extending baffle is 1/5th, as 56.5mm of pedestal perimeter, Remaining structure and parameter are same as Example 1.
The rate of recovery of evaporation material is 37% in the present embodiment, then the utilization rate of evaporation source material is 42%, is kept off when extending When the arc length of plate is lower, will cause substantial portion of evaporation material can not be collected on extension baffle, only the energy on overhead gage Some materials are collected into, will cause the waste significantly of evaporation source material.
Embodiment 7
Difference with embodiment 1 is only that the arc length for extending baffle is 1/10th, as 28.3mm of pedestal perimeter, Remaining structure and parameter are same as Example 1.
The rate of recovery of evaporation material is 32% in the present embodiment, then the utilization rate of evaporation source material is 37%, is kept off when extending When the arc length of plate is lower, will cause substantial portion of evaporation material can not be collected on extension baffle, only the energy on overhead gage Some materials are collected into, will cause the waste significantly of evaporation source material.
Comparative example 1
It is 90 ° that difference with embodiment 1, which is only that overhead gage and extends the angle of baffle, remaining structure and parameter with reality It is identical to apply example 1.
The rate of recovery of evaporation material is 50% in this comparative example, then the utilization rate of evaporation source material is 55%, works as overhead gage It is 90 ° with the angle for extending baffle, there will be part evaporation source materials in the case where the reflection of overhead gage is used, and former road returns to evaporation source In, it will cause the pollution of evaporation source.
Comparative example 2
It is 180 ° that difference with embodiment 1, which is only that overhead gage and extends the angle of baffle, remaining structure and parameter with Embodiment 1 is identical.
The rate of recovery of evaporation material is 15% in this comparative example, then the utilization rate of evaporation source material is 20%, works as overhead gage It is 180 ° with the angle for extending baffle, then can not be evaporated to side for being only capable of being collected on evaporation source material vapor deposition to overhead gage Some materials.
Comparative example 3
Difference with embodiment 1 is only that extending the angle of baffle and pedestal is 135 °, remaining structure and parameter with reality It is identical to apply example 1.
The rate of recovery of evaporation material is 15.7% in this comparative example, then the utilization rate of evaporation source material is 20.7%, when prolonging When the angle for stretching baffle and pedestal is 135 °, it will cause very big a part of evaporation material and can not be collected into and extend baffle and overhead gage On, it will cause the waste significantly of evaporation source material.
The Applicant declares that the foregoing is merely specific embodiment of the present utility model, but the protection model of the utility model It encloses and is not limited thereto, it should be clear to those skilled in the art, any to belong to those skilled in the art and exist In the technical scope that the utility model discloses, any changes or substitutions that can be easily thought of, all falls within the protection scope of the utility model Within the open scope.

Claims (10)

1. a kind of evaporation source retaining device, which is characterized in that the retaining device includes sequentially connected overhead gage from top to bottom (1), extend baffle (2) and pedestal (3);
Baffle (2) and the angle of pedestal (3) of extending are β, 0 ° of β≤90 ° <;
The overhead gage (1) and the angle for extending baffle (2) are θ, 90 ° of 180 ° of < θ <.
2. evaporation source retaining device according to claim 1, which is characterized in that the pedestal (3) is cylindrical shape, for putting Set evaporation source.
3. evaporation source retaining device according to claim 2, which is characterized in that baffle (2) and the pedestal (3) of extending Angle is 90 °.
4. evaporation source retaining device according to claim 2, which is characterized in that the extension baffle (2) is arc;
The a length of C of circumference of the pedestal (3), the arc length for extending baffle (2) is l, l≤0.5C.
5. evaporation source retaining device according to claim 1, which is characterized in that the extension baffle (2) be high temperature resistant or The extension baffle of vacuum-resistant material;
The overhead gage (1) is the overhead gage of high temperature resistant or vacuum-resistant material.
6. evaporation source retaining device according to claim 2, which is characterized in that the length of the overhead gage (1) is L, on Vertical range of the baffle (1) on pedestal (3) is a, a=L cos (θ -90 °);The radius of the pedestal (3) is R;The a≤ R。
7. evaporation source retaining device according to claim 1, which is characterized in that overhead gage (1) surface is additionally provided with Partition.
8. a kind of evaporated device, which is characterized in that the evaporated device includes evaporation source (4), substrate (5) and baffle;It is described Baffle is the described in any item evaporation source retaining devices of claim 1-7.
9. evaporated device according to claim 8, which is characterized in that the axis of the evaporation source (4) and the axis of pedestal (3) Line position is identical;
The vertical range of pedestal (3) bottom of the substrate (5) and evaporation source retaining device is H, the height of evaporation source retaining device Degree is h;The h < H.
10. evaporated device according to claim 9, which is characterized in that evaporation source (4) center to substrate (5) center Vertical range be S;The radius of the evaporation source (4) is r;The radius of the pedestal (3) is R;The r < R < S.
CN201920211876.9U 2019-02-19 2019-02-19 A kind of evaporation source retaining device and evaporated device Active CN209568138U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920211876.9U CN209568138U (en) 2019-02-19 2019-02-19 A kind of evaporation source retaining device and evaporated device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920211876.9U CN209568138U (en) 2019-02-19 2019-02-19 A kind of evaporation source retaining device and evaporated device

Publications (1)

Publication Number Publication Date
CN209568138U true CN209568138U (en) 2019-11-01

Family

ID=68335311

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920211876.9U Active CN209568138U (en) 2019-02-19 2019-02-19 A kind of evaporation source retaining device and evaporated device

Country Status (1)

Country Link
CN (1) CN209568138U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113061847A (en) * 2021-03-19 2021-07-02 云谷(固安)科技有限公司 Display device evaporation device and evaporation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113061847A (en) * 2021-03-19 2021-07-02 云谷(固安)科技有限公司 Display device evaporation device and evaporation method

Similar Documents

Publication Publication Date Title
CN209568138U (en) A kind of evaporation source retaining device and evaporated device
CN205999474U (en) Vacuum deposition apparatus
CN205839115U (en) A kind of crucible and vaporising device
CN202246836U (en) Resistance heating type evaporation source
KR101410882B1 (en) Depositing source apparatus of organic light emitting diode for crucible anti-pollution
JP2019218623A5 (en)
CN102268642A (en) Resistance heating evaporation source
CN104404450A (en) Crucible for sublimed OLED material vapor plating
KR20140006499A (en) Evaporation apparatus
CN109097739A (en) One kind preventing plate and evaporated device
CN201826007U (en) Anti-adhesion plate and membrane deposition equipment
CN103834921A (en) Evaporation source check plate structure
KR100848709B1 (en) Downward type deposition source
CN104593729A (en) Crucible capable of preventing evaporation material from splashing and plugging holes
CN104109834A (en) Evaporation source device for evaporator and evaporator
CN108400260A (en) A kind of preparation method of OLED device
WO2020015205A1 (en) Vapor deposition device
CN108565347B (en) A kind of oled substrate and preparation method thereof
CN106191785B (en) Crucible, evaporation coating device and deposition system
CN107287559A (en) OLED evaporated devices and its Antisticking
CN207749178U (en) A kind of OLED vapor depositions crucible
KR100601503B1 (en) Depositing Apparatus
CN106148899B (en) A kind of vapor deposition crucible and evaporation source
CN215713331U (en) Crucible for evaporation
KR20080062310A (en) A crucible of fabricating oled

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant