WO2019095558A1 - 光照组件及紫外线液晶照射机 - Google Patents
光照组件及紫外线液晶照射机 Download PDFInfo
- Publication number
- WO2019095558A1 WO2019095558A1 PCT/CN2018/074302 CN2018074302W WO2019095558A1 WO 2019095558 A1 WO2019095558 A1 WO 2019095558A1 CN 2018074302 W CN2018074302 W CN 2018074302W WO 2019095558 A1 WO2019095558 A1 WO 2019095558A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- visor
- light
- light shielding
- substrate
- illumination assembly
- 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.)
- Ceased
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
Definitions
- the invention relates to the field of liquid crystal display manufacturing, and in particular to an ultraviolet light alignment process.
- the ultraviolet alignment process is a technology in the process of LCD display box processing, and the reaction medium is reacted in the liquid crystal by irradiating the substrate with ultraviolet light, so that the liquid crystal forms a pretilt angle.
- the pretilt angle and the exposure time are proportional. The longer the time, the larger the pretilt angle.
- the pretilt angle of each position of the substrate needs to be consistent, so The lighting time needs to be strictly controlled.
- the ultraviolet alignment process requires ultraviolet light to emit ultraviolet light.
- metal halide lamps, mercury lamps and fluorescent lamps are commonly used.
- the lamps are irradiated with the shape of the tubes arranged side by side, and the time for each substrate to be irradiated is strictly controlled according to the brightness of the tubes, and is usually about 90 to 100 seconds.
- the brightness of the lamp is high at the moment of opening, and it takes more than 10 minutes to achieve stable light output, and the change of brightness is not conducive to the control of the irradiation time. Therefore, in the ultraviolet alignment process, the lamp for illumination is used. It is set to the normally open mode, and the visor is used to control the illumination time of the light to avoid the multiple stabilization time required for repeated switching, thereby improving production efficiency.
- the existing visor structure adopts two sides of the flat plate facing each other to realize the opening or closing action of the light by the translational movement of the opposite direction or the translational movement of the reverse direction.
- the two oppositely disposed flat plates are moved away from each other away from each other, and the center point of the substrate is firstly irradiated with ultraviolet light, and the edges of both sides finally receive ultraviolet light; and after the exposure is finished, the two side visors are Closed to the middle, the sides of the substrate are first isolated from ultraviolet light, and the center point is finally isolated from ultraviolet light.
- the visor of the existing G8.5 generation line moves for about 5 s.
- the center point is about 10 s more than the edge of the two sides, which leads to the pretilt angle of the two sides and the center point. Inconsistent phenomena, which affect the optical performance of the liquid crystal display and reduce the product yield.
- the production line is a higher generation, such as the G10.5 generation production line, due to the larger size of the substrate, the time for the visor to move from the middle of the machine to the two sides is longer, and the difference in the pretilt angle of each position of the substrate is further enlarged, and the yield is lower. .
- An illumination assembly for controlling illumination time of a substrate in an ultraviolet ray irradiator comprising a lamp tube, a visor and a driving device, the lamp tube for illuminating the substrate, the visor being connected to the driving device So that the driving device drives the visor to flip between the first position and the second position; when the visor is in the first position, the visor blocks the lamp tube and the substrate Between the light blocking the lamp tube is irradiated to the substrate, and when the light shielding plate is in the second position, light of the lamp tube is irradiated to the substrate.
- a plurality of the visors are arranged side by side, and each of the visors is provided with an independent flip axis.
- the number of the light shielding plates is the same as the number of the light pipes, and each of the light shielding plates is turned around one of the light pipes.
- the illumination assembly further comprises a lamp holder, the lamp tubes are fixed side by side on the lamp holder, and the lamp tube is kept fixed when the light shielding plate is turned over.
- the light shielding plate has a circular arc shape, and the light shielding plate is inverted by 180 degrees each time, and the light tube is accommodated inside a circular track formed when the light shielding plate is inverted.
- the light shielding plate is a flat plate, and the minimum angle of the light shielding plate flipping each time is 90 degrees.
- the lamp tube is fixedly connected to the light shielding plate, and the light shielding plate is turned 180 degrees each time.
- At least two of the visors are synchronously flipped when flipped, and the speed is consistent.
- the invention also relates to an ultraviolet liquid crystal irradiation machine for the ultraviolet light alignment process of a substrate, which employs the above illumination assembly.
- the illumination assembly of the invention is correspondingly improved in view of the problem of uneven illumination time caused by the translation of the relatively disposed visor in the prior structure.
- the light shielding plate between the lamp tube and the substrate is turned over in a direction in which the substrate extends toward the lamp tube, thereby achieving an opening and closing action of the lamp tube to illuminate the substrate. Because the rotation direction of the visor is consistent every time, the light ray area that first leaks out of the light tube when the visor is turned on is also the light that is first blocked when the visor is closed.
- the illuminating area of the tube is more uniform for the illumination time of the lamp to the substrate, and the liquid crystal preset angle of each position of the substrate tends to be uniform.
- FIG. 1 is a schematic view showing an open state of a first embodiment of the illumination assembly of the present invention
- Figure 2 is a plan view of the illumination assembly of the present invention.
- Figure 3 is a schematic view showing the closed state of the first embodiment of the illumination assembly of the present invention.
- FIG. 4 is a schematic view showing an open state of a second embodiment of the illumination assembly of the present invention.
- Figure 5 is a schematic view showing the closed state of the second embodiment of the illumination assembly of the present invention.
- Figure 6 is a schematic view showing the open state of the third embodiment of the illumination assembly of the present invention.
- Figure 7 is a schematic view showing the closed state of the third embodiment of the illumination assembly of the present invention.
- Figure 8 is a schematic view showing the open state of the fourth embodiment of the illumination assembly of the present invention.
- Figure 9 is a schematic illustration of the closed state of a fourth embodiment of the illumination assembly of the present invention.
- the illumination assembly 100 of FIG. 1 , FIG. 2 and FIG. 3 for controlling the illumination time of the substrate 300 in the ultraviolet irradiation machine, including the lamp tube 200, the light shielding plate 10 and the driving device 20, wherein the lamp tube 200 is used for Illuminating the substrate 300, the light shielding plate 10 is connected to the driving device 20, so that the driving device 20 drives the light shielding plate 10 to be turned between a first position and a second position, and the light shielding plate 10 is located In the first position, the light shielding plate 10 is shielded between the lamp tube 200 and the substrate 300 to block light from the lamp tube 200 from being irradiated to the substrate 300, that is, the illumination assembly at this time.
- 100 is in a closed state; when the visor 10 is in the second position, the light of the lamp tube 200 is irradiated to the substrate 300, that is, the illumination assembly 100 is in an open state.
- the visor 10 when the ultraviolet ray irradiator is in a closed state, the visor 10 is between the lamp tube 200 and the substrate 300, and the visor 10 is elongated, and the visor 10 is The length direction is parallel to the longitudinal direction of the lamp tube 200, that is, the light shielding plates 10 are arranged in a direction perpendicular to the longitudinal direction of the lamp tube 200, and the adjacent two of the light shielding plates 10 are closely matched to completely block The light emitted by the tube 200 toward the substrate 300. At least one end of the visor 10 is connected with a driving device 20, and each of the visors 10 is provided with a separate axis 11 for controlling each of the visors 10 in the illuminating machine.
- the axis 11 is an axis that is inverted in the same direction of rotation. That is, the driving device 20 can control the light shielding plate 10 to rotate in a clockwise direction or in a counterclockwise direction with the axis 11 as an axis. This turning action is the action of the lighting assembly 100 to switch the opening and closing of the lamp tube 200.
- the lamp tube 200 is fixed on the lamp holder 30. After each of the light shielding plates 10 completes an inversion operation in the closed state, the light shielding plate 10 is in the substrate 300 toward the lamp tube 200. In the extending direction, that is, the visor 10 is behind the lamp tube 200, and the ultraviolet light emitted by the lamp tube 200 is no longer blocked. At this time, the lamp tube 200 is switched to the open state, the substrate 300 received ultraviolet light irradiation, and began liquid crystal alignment.
- the present invention uses the action of the light shielding plate 10 to be reversed in the same rotation direction to realize the opening and closing of the illumination of the substrate 300 by the lamp tube 200, which can be ensured by
- the irradiation position of the lamp tube 200 in which the light shielding plate 10 is first opened is also the position at which the lamp tube 200 is first closed.
- a projection area of the single light shielding plate 10 on the substrate 300, that is, the substrate 300 is opposite to the light receiving region 301 of the light shielding plate 10 The ultraviolet light irradiation time received by each of the regions is the same, thereby achieving uniformity of illumination of the entire lamp tube 200, keeping the liquid crystals forming a uniform pretilt angle.
- the driving device 20 only drives one end of the light guide plate 10 to require a large turning torque output, which is disadvantageous for the rigidity control of the light guide plate 10.
- the flipping may be simultaneously driven at both ends of the light guide plate 10, and at this time, the driving device 20 is preferably a synchronous motor or the same driver to ensure the matching of the turning motion of the two ends.
- each of the visors 10 may be mounted with the independent driving device 20, or only one of the driving devices may be used, and the mechanism of the linkage mechanism, the sprocket mechanism, the cam mechanism or the gear series may be used.
- the mechanism of the linkage mechanism, the sprocket mechanism, the cam mechanism or the gear series may be used.
- the visor 10 is sequentially turned over, and the above-mentioned mechanism motion mode is also adopted, but only the differential unit is added.
- the motor arranged side by side uses a differential asynchronous motor, or a differential link mechanism, Embodiments such as differential gears.
- the instantaneous torque can be better controlled, and the inversion speed of each of the visors 10 is controlled to be uniform, and the visor 10 is controlled along the same side by side in each flipping operation.
- the illumination time of the lamp 200 to the substrate 300 can also be controlled more accurately.
- the size of the light receiving area 301 corresponding to the single light shielding plate 10 also differs. If the inversion time of each of the light shielding plates 10 is the same, the actual light receiving area between the light receiving regions 301 is different in one inversion time, thereby causing the light receiving time of each region in the substrate 300 to be generated. The difference.
- the visor 10 may be disposed in the same shape and size, and the received light of the light receiving region 301 is also the same.
- the light shielding plate 10 is a rectangular shape of equal size.
- each of the individual lamps 201 can be arranged to have a corresponding one of the shutters 10 to control the opening and closing of the single lamps 201.
- the light shielding plate 10 is fixedly connected to the light tube 200, that is, at least one of the single light tubes 201 is fixed on the light shielding plate 10, and the light shielding is performed.
- the panel 10 serves both as a shading function and as a support for the single bulb 201, that is, the lamp holder 30.
- the light shielding plate 10 drives the light tube 200 to be turned 180 degrees during each turning process, thereby achieving switching between the open state and the closed state of the light tube 200.
- 1 to 50 of the single lamp tubes 201 may be disposed on each of the light shielding plates 10.
- the axis 11 can also be disposed at the center of the tube 200 or the center of the visor 10 to help eliminate unbalanced moments when flipped.
- the visor 10 has a circular arc shape, and the visor 10 is also flipped by 180 degrees each time, and the visor 10 is turned around the axis 11 by a circle.
- the trajectory should accommodate the lamp tube 200 to enable the opening and closing of the lamp tube 200.
- the trajectory of each of the visors 10 preferably houses 1 to 50 of the single lamps 201.
- the visor 10 is a flat plate, which is only turned 90 degrees at a time, and is disposed at a distance from the lamp tube 200 on the same horizontal line. At this time, the visor 10 is horizontally. The light emitted by the bulb 200 is blocked, but the light that is vertically downwardly irradiated is also unobstructed, and the effect of the present invention can be achieved as well.
- the angle at which the visor 10 is flipped is not exceeded, preferably equal to 180 degrees, and the limiting device 12 is set on the visor 10, the limit The device is preferably disposed at an end of the visor 10 so as not to interfere with the flipping action of the visor 10.
- the limiting device 12 needs to realize the releasing action after the limiting under the action of the driving device 20 . That is, when the light shielding plate 10 is turned 180 degrees each time, the driving device 20 first releases the limiting device 12 to perform the next turning operation of the light shielding plate 10.
- the limiting device 12 may be composed of a limiting surface disposed on the end of the light shielding plate 10 and a supporting surface disposed on the ultraviolet irradiation machine body to cooperate with the limiting surface. At least one of the limiting surface or the supporting surface has a spring expansion device for the driving device 20 to be released from the limit. Since the implementation of the limiting device 12 is relatively simple and common, no separate drawing will be described herein.
- a sealing strip 13 may be provided at the edge of the visor 10, the sealing strip 13 being made of a flexible opaque material for sealing the gap between the visors 10 to block light.
- the present invention also relates to the technical solution of the ultraviolet liquid crystal irradiation machine, which uses one of the above-mentioned various illumination components 100 for the ultraviolet light alignment process of the substrate 300, and can realize the The light receiving time of each region of the substrate 300 is uniform.
- the illumination assembly of the present invention uses the visor that is flipped in the same direction instead of the relatively open/closed visor structure of the prior art, so that the light receiving time of each region of the substrate during the ultraviolet ray irradiation can be kept uniform.
- the light shielding plate is provided in a plurality of side plate structures having the same shape and in parallel, and the unevenness of the light receiving time caused by the opening and closing of the light shielding plate can be further prevented.
- the illumination module of the invention has higher reliability after optimized design of the driving mode, the transmission mode, the connection and fixing manner of the single lamp tube and the limiting manner by the several embodiments. Sex and motion accuracy can further improve the processing effect of the UV alignment process.
- the UV liquid crystal illuminator equipped with this illumination module has a higher yield because of the above-mentioned beneficial effects.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
一种紫外光配向工序中的光照组件(100)，涉及LCD显示器制造领域，用于在紫外线照射机中控制灯管(200)对基板(300)的照射时间。光照组件(100)包含遮光板(10)，遮光板(10)至少一端连接有驱动装置(20)，当遮光板(10)为多个时，每一个遮光板(10)均设有一独立轴线(11)，通过绕灯管(200)的翻转来实现灯管(200)的开启和关闭动作。翻转动作有第一位置和第二位置，从而保证基板(300)各个区域所受到的紫外光照射时间相同，控制照射均匀度，保持液晶形成一致的预倾角。
Description
本发明涉及液晶显示器制造领域，尤其涉及紫外光配向工艺。
紫外光配向工艺是LCD显示器对盒制程中的一项技术，通过对基板照射紫外光的方式使液晶中反应型单体发生反应，从而让液晶形成预倾角。预倾角大小和曝光时间是呈正比关系，时间越长，预倾角越大，在生产过程中，为了保障LCD显示器观看效果的一致性，需要基板各位置的预倾角均保持一致，因此对于基板的光照时间需要严格控制。
紫外配向工艺需要用紫外线液晶照射机发出紫外光，目前常用的有金属卤素灯、汞灯及荧光灯等。实际生产中，这些灯采用并排间隔设置的灯管形状对基板进行照射，每张基板接受照射的时间需要根据灯管的亮度进行严格控制，通常为90～100秒左右。而灯管在刚打开的瞬间亮度较高，需要10分钟以上的安定时间才能实现稳定光线的输出，而亮度的变化不利于照射时间的控制，因此在紫外配向工艺中，用于照射的灯管被设置为常开模式，用遮光板来控制光线的照射时间，以避开反复开关所需的多次安定时间，提高生产效率。
现有的遮光板结构，采用两侧平板相向设置，通过相向的平移运动或者反向远离的平移运动来实现光线的打开或关闭动作。在打开遮光板开始曝光时，两个相对设置的平板往两侧相互远离平移，基板中心点先首先受到紫外光的照射，两侧边缘最后接收到紫外光；而曝光结束后，两侧遮光板往中间闭合，基板两侧边缘先被隔离紫外光，中心点最后才被隔离紫外光。现有G8.5代生产线的遮光板移动的时间约5s，结合打开和关闭两次动作，中心点比两侧边缘要多约10s的照射时间，这导致两侧边缘和中心点的预倾角存在不一致的现象，从而影响液晶显示器的光学表现，降低产品良品率。当生产线为更高世代，如G10.5代生产线时，由于基板尺寸更大，遮光板从机台中间移动到两侧的时间更长，基板各位置预倾角差异会进一步放大，良率更低。
发明内容
本发明的目的在于提供一种结构简单、在开启和关闭过程中遮光更均匀的光照组件设计，提供如下技术方案：
一种光照组件，用于在紫外线照射机中控制对基板的照射时间，包括灯管、遮光板和驱动装置，所述灯管用于照射所述基板，所述遮光板连接至所述驱动装置，以使所述驱动装置带动所述遮光板在第一位置和第二位置之间翻转；所述遮光板位于所述第一位置时，所述遮光板遮挡在所述灯管和所述基板之间，以阻挡所述灯管的光线照射至所述基板，所述遮光板位于所述第二位置时，所述灯管的光线照射至所述基板。
其中，多个所述遮光板并排设置，每一个所述遮光板均设有一独立翻转轴心。
其中，所述遮光板数量与所述灯管的数量相同，每一个所述遮光板围绕一个所述灯管翻转。
其中，所述光照组件还包括灯架，所述灯管并排固定于所述灯架上，所述遮光板翻转时所述灯管保持固定。
其中，所述遮光板为圆弧形，所述遮光板每次翻转180度，所述灯管收容于所述遮光板翻转时形成的圆形轨迹内部。
其中，所述遮光板为平板，所述遮光板每次翻转的最小角度为90度。
其中，所述灯管与所述遮光板固连，所述遮光板每次翻转180度。
其中，两个相邻的所述遮光板之间设有密封条，用于密封所述遮光板之间的间隙。
其中，至少两个所述遮光板在翻转时同步翻转，速度一致。
本发明还涉及一种紫外线液晶照射机，用于基板的紫外光配向工序，采用了上述的光照组件。
本发明光照组件，针对现有结构中相对设置的遮光板平移所产生的照射时间不均匀问题，作了相应改进。利用在所述灯管和所述基板之间的所述遮光板，在所述基板向所述灯管的延伸方向上翻转，从而实现所述灯管对所述基板照射的开启和关闭动作。因为所述遮光板每次翻转的旋向一致，在所述遮光板在开 启照射时最先漏出所述灯管的光线区域，也为所述遮光板在关闭时最先遮住的所述灯管的光线区域，对于所述灯管对所述基板的照射时间控制更均匀，有利于所述基板的各位置液晶预设角趋于一致。
图1是本发明光照组件第一种实施例开启状态的示意图；
图2是本发明光照组件的平面示意图；
图3是本发明光照组件第一种实施例关闭状态的示意图；
图4是本发明光照组件第二种实施例开启状态的示意图；
图5是本发明光照组件第二种实施例关闭状态的示意图；
图6是本发明光照组件第三种实施例开启状态的示意图；
图7是本发明光照组件第三种实施例关闭状态的示意图；
图8是本发明光照组件第四种实施例开启状态的示意图；
图9是本发明光照组件第四种实施例关闭状态的示意图。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例，都属于本发明保护的范围。
请参阅图1、图2和图3的光照组件100，用于在紫外线照射机中控制对基板300的照射时间，包括灯管200、遮光板10和驱动装置20，所述灯管200用于照射所述基板300，所述遮光板10连接至所述驱动装置20，以使所述驱动装置20带动所述遮光板10在第一位置和第二位置之间翻转，所述遮光板10位于所述第一位置时，所述遮光板10遮挡在所述灯管200和所述基板300之间，以阻挡所述灯管200的光线照射至所述基板300，即此时所述光照组件100处于关闭状态；所述遮光板10位于所述第二位置时，所述灯管200的光线照射至所述基板300，即所述光照组件100处于开启状态。
一种实施例，在紫外线照射机中处于关闭状态时，所述遮光板10处于所述灯管200和所述基板300之间，所述遮光板10为长条状，所述遮光板10的长度方向平行于所述灯管200的长度方向，即所述遮光板10沿垂直于所述灯管200的长度方向的依次排列，相邻两个所述遮光板10之间紧密配合，完全遮挡所述灯管200向所述基板300投射的光线。所述遮光板10至少一端连接有驱动装置20，每一个所述遮光板10均设有一独立轴线11，所述驱动装置20用于控制每一个所述遮光板10在所述照射机中，以所述轴线11为轴沿同一旋转方向翻转。即所述驱动装置20可以控制所述遮光板10以所述轴线11为轴，以顺时针方向转动，或者以逆时针方向转动。而这个转动动作，就是所述光照组件100对所述灯管200的开启和关闭切换的动作。
所述灯管200固定于灯架30上，当每一个所述遮光板10在所述关闭状态下完成一次翻转动作后，所述遮光板10即处于所述基板300向所述灯管200的延伸方向上，即所述遮光板10处于所述灯管200的背后，不再遮挡所述灯管200所发出的紫外光，此时所述灯管200切换至所述开启状态，所述基板300接受到紫外光照射，开始进行液晶配向。
相比于两侧遮光平板相对水平移动打开的方式，本发明用所述遮光板10沿同一旋转方向翻转的动作来实现所述灯管200对所述基板300照射的开启和关闭，可以保证由所述遮光板10最先打开的所述灯管200的照射位置也是所述灯管200最先关闭的位置。在所述驱动装置20控制所述遮光板10的翻转动作时，单个所述遮光板10在所述基板300上的投影区域，即所述基板300相对于所述遮光板10的受光区域301中每一个区域所受到的紫外光照射时间是相同的，由此实现整个所述灯管200照射的均匀度，保持液晶形成一致的预倾角。
另一方面，由于所述遮光板10需要完全遮挡所述灯管200的光线，需要横跨比较长的距离才能实现。此时所述驱动装置20只驱动所述导光板10的一端可能需要较大的翻转力矩输出，不利于所述导光板10的刚度控制。为避免所述导光板10的变形，可以在所述导光板10的两端同时驱动翻转，而此时所述驱动装置20适宜采用同步电机或同一驱动器来保证翻两端转动作的匹配。
对于并排设置的所述遮光板10，如果所述遮光板10的数量较多，在做出 翻转动作时，可以是同步翻转，且所述遮光板10的翻转速度一致，这样便于照射时间的控制。此时可以对每个所述遮光板10都安装上独立的所述驱动装置20，也可以只使用一个所述驱动装置，通过连杆机构、链轮机构、凸轮机构或者齿轮串联等机构运动方式来实现同步翻转。但要实现同步翻转的瞬时扭矩需求较大，不利于总体功率的控制。因此，也有一种对所述遮光板10依次翻转的实施方式，同样采用上述机构运动方式，只是添加差动单元即可，如并排设置的电机采用差动异步电机，或差动连杆机构、差动齿轮等实施方式。所述遮光板10不同步翻转时瞬时扭矩可以得到较好的控制，且控制好各个所述遮光板10的翻转速度一致，并在每一次的翻转动作中控制所述遮光板10沿同一并排方向依次翻转，同样可以较精确的控制所述灯管200对所述基板300的照射时间。
当所述遮光板10各自形状大小不同时，单个所述遮光板10所对应的所述受光区域301面积大小也产生差异。若每一个所述遮光板10的翻转时间相同，则在一次翻转用时内，所述受光区域301之间的实际接收光线面积不同，由此带来所述基板300内各区域的接收光线时间产生了差异。为消除此类影响，所述遮光板10可以设置为同样形状大小，则所述受光区域301的接收光线也相同。优选所述遮光板10为大小相等的长方形。
显然，当所述遮光板10的数量越多，单个所述遮光板10的翻转动作对所述灯管200整体光量的影响就越小。因而，可以安排每一根单独的灯管201都设置一个对应的所述遮光板10，以控制所述单根灯管201的开启和关闭动作。
一种实施例，见图4、图5，所述遮光板10与所述灯管200为固定连接，即至少一根所述单根灯管201固定在所述遮光板10上，所述遮光板10此时既起遮光作用，也起到对所述单根灯管201的支撑，即所述灯架30的作用。所述遮光板10在每次翻转过程中带动所述灯管200翻转180度，从而实现所述灯管200在所述打开状态和所述关闭状态之间的切换。每个所述遮光板10上可以设置1～50根所述单根灯管201。所述轴线11也可以设置在所述灯管200的中心或所述遮光板10的中心，有助于在翻转时消除不平衡力矩。
另一种实施例，见图6、图7，所述遮光板10为圆弧形，所述遮光板10 每次也翻转180度，而所述遮光板10绕所述轴线11翻转的圆形轨迹，应该收容所述灯管200才能实现所述灯管200的打开和关闭。在每一次翻转动作中，每一个所述遮光板10的轨迹优选收容1～50根所述单根灯管201。
图8和图9的实施例，所述遮光板10为平板，每次只翻转90度，与所述灯管200在同一水平线上呈间隔设置，此时所述遮光板10虽然在水平方向上阻挡了所述灯管200发出的光，但对于竖直向下照射的光线也没有遮挡，同样可以实现本发明的效果。
为了保证本发明遮光板10的运动精度，限定所述遮光板10每次翻转的角度不超过，最好是等于180度，在所述遮光板10上设定限位装置12，所述限位装置宜设置于所述遮光板10的端部，以免干涉所述遮光板10的翻转动作。同时所述限位装置12需要在所述驱动装置20的作用下实现限位后的解脱动作。即所述遮光板10在每次翻转180度时，所述驱动装置20先将限位装置12解脱，才能进行所述遮光板10下一次的翻转动作。所述限位装置12可以由设置在所述遮光板10端头上的限位面，和设置于所述紫外线照射机机身上与所述限位面配合的支撑面组成。其中所述限位面或所述支撑面中至少有一个带有弹簧伸缩装置，以便所述驱动装置20解脱限位。因所述限位装置12的实施方式较为简单且常见，此处不予单独制图说明。
在两个相邻的所述遮光板10之间，因为各自的转动动作，需要设置一点运动让位的间隙。间隙过大容易造成光线的泄漏，间隙过小则可能在所述遮光板10的转动过程中发生干涉。为此，可以在所述遮光板10的边缘处设置密封条13，所述密封条13为柔性不透光材料制成，用于对所述遮光板10之间的间隙进行密封挡光。
本发明还涉及所述紫外线液晶照射机的技术方案，所述紫外线液晶照射机采用上述的各种所述光照组件100中的一种，用于所述基板300的紫外光配向工序，可以实现所述基板300各个区域的受光时间均匀。
本发明光照组件，使用沿同一方向翻转的所述遮光板来代替现有技术中相对张开/闭合的遮光板结构，可以使所述基板在紫外线照射过程中各个区域的受光时间保持均匀。特别是将所述遮光板设置为多个并排的形状相同小板结 构，可以进一步避免所述遮光板的开闭而带来的受光时间不均影响。在通过几个实施例对所述遮光板的驱动方式、传动方式、与所述单根灯管的连接固定方式以及限位方式等均进行优化设计后，本发明光照组件具备了更高的可靠性和运动精度，可以进一步提高紫外光配向工序的加工效果。配备本光照组件的紫外线液晶照射机，也因为上述有益效果而具备了更高的良品率。
以上所述的实施方式，并不构成对该技术方案保护范围的限定。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。
Claims (18)
- 一种光照组件，用于在紫外线照射机中控制对基板的照射时间，其中，包括灯管、遮光板和驱动装置，所述灯管用于照射所述基板，所述遮光板连接至所述驱动装置，以使所述驱动装置带动所述遮光板在第一位置和第二位置之间翻转；所述遮光板位于所述第一位置时，所述遮光板遮挡在所述灯管和所述基板之间，以阻挡所述灯管的光线照射至所述基板，所述遮光板位于所述第二位置时，所述灯管的光线照射至所述基板。
- 如权利要求1所述光照组件，其中，多个所述遮光板并排设置，每一个所述遮光板均设有一独立翻转轴心。
- 如权利要求2所述光照组件，其中，所述遮光板数量与所述灯管的数量相同，每一个所述遮光板围绕一个所述灯管翻转。
- 如权利要求3所述光照组件，其中，所述光照组件还包括灯架，所述灯管并排固定于所述灯架上，所述遮光板翻转时所述灯管保持固定。
- 如权利要求4所述光照组件，其中，所述遮光板为圆弧形，所述遮光板每次翻转180度，所述灯管收容于所述遮光板翻转时形成的圆形轨迹内部。
- 如权利要求4所述光照组件，其中，所述遮光板为平板，所述遮光板每次翻转的最小角度为90度。
- 如权利要求3所述光照组件，其中，所述灯管与所述遮光板固连，所述遮光板每次翻转180度。
- 如权利要求1所述光照组件，其中，两个相邻的所述遮光板之间设有密封条，用于密封所述遮光板之间的间隙。
- 如权利要求1所述光照组件，其中，至少两个所述遮光板在翻转时同步翻转，速度一致。
- 一种紫外线液晶照射机，用于基板的紫外光配向工序，其中，采用了权利要求1所述光照组件，所述光照组件包括灯管、遮光板和驱动装置，所述灯管用于照射所述基板，所述遮光板连接至所述驱动装置，以使所述驱动装置带动所述遮光板在第一位置和第二位置之间翻转；所述遮光板位于所述第一位置时，所述遮光板遮挡在所述灯管和所述基板之间，以阻挡所述灯管的光线照 射至所述基板，所述遮光板位于所述第二位置时，所述灯管的光线照射至所述基板。
- 如权利要求10所述紫外线液晶照射机，其中，多个所述遮光板并排设置，每一个所述遮光板均设有一独立翻转轴心。
- 如权利要求11所述紫外线液晶照射机，其中，所述遮光板数量与所述灯管的数量相同，每一个所述遮光板围绕一个所述灯管翻转。
- 如权利要求12所述紫外线液晶照射机，其中，所述光照组件还包括灯架，所述灯管并排固定于所述灯架上，所述遮光板翻转时所述灯管保持固定。
- 如权利要求13所述紫外线液晶照射机，其中，所述遮光板为圆弧形，所述遮光板每次翻转180度，所述灯管收容于所述遮光板翻转时形成的圆形轨迹内部。
- 如权利要求13所述紫外线液晶照射机，其中，所述遮光板为平板，所述遮光板每次翻转的最小角度为90度。
- 如权利要求12所述紫外线液晶照射机，其中，所述灯管与所述遮光板固连，所述遮光板每次翻转180度。
- 如权利要求10所述紫外线液晶照射机，其中，两个相邻的所述遮光板之间设有密封条，用于密封所述遮光板之间的间隙。
- 如权利要求10所述紫外线液晶照射机，其中，至少两个所述遮光板在翻转时同步翻转，速度一致。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711142637.4 | 2017-11-17 | ||
| CN201711142637.4A CN107656401B (zh) | 2017-11-17 | 2017-11-17 | 光照组件及紫外线液晶照射机 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019095558A1 true WO2019095558A1 (zh) | 2019-05-23 |
Family
ID=61120072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2018/074302 Ceased WO2019095558A1 (zh) | 2017-11-17 | 2018-01-26 | 光照组件及紫外线液晶照射机 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107656401B (zh) |
| WO (1) | WO2019095558A1 (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423489A (zh) * | 2017-08-28 | 2019-03-05 | 江苏食品药品职业技术学院 | 一种连续式微生物物理诱变育种方法 |
| CN110806661A (zh) * | 2019-11-26 | 2020-02-18 | Tcl华星光电技术有限公司 | 配向紫外线照射机和液晶配向方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658653B (zh) * | 2018-06-29 | 2021-09-03 | 上海微电子装备（集团）股份有限公司 | 光配向装置及方法 |
| CN109085723A (zh) * | 2018-08-03 | 2018-12-25 | 深圳市华星光电技术有限公司 | 光照设备 |
| CN111147636B (zh) * | 2019-12-30 | 2021-10-01 | 维沃移动通信有限公司 | 电子设备及电子设备的控制方法 |
| CN111338110B (zh) * | 2020-04-13 | 2023-05-02 | Tcl华星光电技术有限公司 | 框胶固化装置及其固化方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000162615A (ja) * | 1998-11-25 | 2000-06-16 | Seiko Epson Corp | 液晶装置の製造方法並びに露光マスク及び露光装置 |
| CN102466963A (zh) * | 2010-11-12 | 2012-05-23 | 北京京东方光电科技有限公司 | 一种掩膜版及一种掩膜曝光的方法 |
| CN102650792A (zh) * | 2012-02-20 | 2012-08-29 | 京东方科技集团股份有限公司 | 液晶透镜及其制造方法、制造设备和3d显示装置 |
| CN103962346A (zh) * | 2014-05-21 | 2014-08-06 | 深圳市华星光电技术有限公司 | 可调整紫外光照射能量的紫外光清洗基板的方法 |
| CN104656313A (zh) * | 2015-03-10 | 2015-05-27 | 京东方科技集团股份有限公司 | 光配向装置及方法 |
| CN105759508A (zh) * | 2016-04-21 | 2016-07-13 | 深圳市华星光电技术有限公司 | 用于液晶显示面板的光配向装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005107162A (ja) * | 2003-09-30 | 2005-04-21 | Sharp Corp | 露光装置および露光方法 |
| JP2012123207A (ja) * | 2010-12-08 | 2012-06-28 | Hitachi High-Technologies Corp | 露光装置及び露光方法 |
| CN106773336A (zh) * | 2017-01-03 | 2017-05-31 | 京东方科技集团股份有限公司 | 一种遮光装置、多模型组产品光配向设备及其控制方法 |
-
2017
- 2017-11-17 CN CN201711142637.4A patent/CN107656401B/zh active Active
-
2018
- 2018-01-26 WO PCT/CN2018/074302 patent/WO2019095558A1/zh not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000162615A (ja) * | 1998-11-25 | 2000-06-16 | Seiko Epson Corp | 液晶装置の製造方法並びに露光マスク及び露光装置 |
| CN102466963A (zh) * | 2010-11-12 | 2012-05-23 | 北京京东方光电科技有限公司 | 一种掩膜版及一种掩膜曝光的方法 |
| CN102650792A (zh) * | 2012-02-20 | 2012-08-29 | 京东方科技集团股份有限公司 | 液晶透镜及其制造方法、制造设备和3d显示装置 |
| CN103962346A (zh) * | 2014-05-21 | 2014-08-06 | 深圳市华星光电技术有限公司 | 可调整紫外光照射能量的紫外光清洗基板的方法 |
| CN104656313A (zh) * | 2015-03-10 | 2015-05-27 | 京东方科技集团股份有限公司 | 光配向装置及方法 |
| CN105759508A (zh) * | 2016-04-21 | 2016-07-13 | 深圳市华星光电技术有限公司 | 用于液晶显示面板的光配向装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423489A (zh) * | 2017-08-28 | 2019-03-05 | 江苏食品药品职业技术学院 | 一种连续式微生物物理诱变育种方法 |
| CN110806661A (zh) * | 2019-11-26 | 2020-02-18 | Tcl华星光电技术有限公司 | 配向紫外线照射机和液晶配向方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107656401B (zh) | 2020-06-05 |
| CN107656401A (zh) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019095558A1 (zh) | 光照组件及紫外线液晶照射机 | |
| US6231191B1 (en) | Image display mechanism and image display device | |
| TWI238910B (en) | Liquid crystal display device with a light collecting device | |
| JP4661954B2 (ja) | 調光装置、照明装置及びプロジェクタ | |
| WO2020191877A1 (zh) | 背光模块及显示装置 | |
| JP3924054B2 (ja) | 液晶プロジェクタ | |
| JP2001318614A (ja) | 面光源装置及びこれを用いた液晶表示装置 | |
| WO2013185395A1 (zh) | Led灯条及使用该灯条的侧入式背光模组 | |
| TWI709793B (zh) | 液晶顯示裝置 | |
| JP2565027B2 (ja) | 投影型表示装置 | |
| CN113917579A (zh) | 一种复眼透镜和液晶显示器背光模组 | |
| US9997122B2 (en) | Image display device | |
| US12326633B2 (en) | Front light source and display device | |
| CN101799138B (zh) | 背光源 | |
| US20050259308A1 (en) | Illumination device, display device and projector | |
| JP4140429B2 (ja) | ディスプレイパネルの貼り合わせ装置 | |
| CN103955092A (zh) | 一种背光模组和显示面板 | |
| CN102375312B (zh) | 排气口闸门装置以及投影机 | |
| CN105068329A (zh) | 光配向装置及其空间分光棱镜片 | |
| CN203963677U (zh) | 一种背光模组及显示装置 | |
| JP2011181264A (ja) | 紫外線照射装置 | |
| CN101046606B (zh) | 投影机 | |
| US3699327A (en) | Film viewer | |
| JPS61219980A (ja) | 透過型表示パネルのバツクライト | |
| CN103424842B (zh) | 一种光线调节装置及具有该装置的投影机对比度调节装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18878943 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 18878943 Country of ref document: EP Kind code of ref document: A1 |