TW202316185A - Uv curing device for panel - Google Patents

Abstract

The present invention relates to an UV curing device for a panel, which is applied as a 3 X 3 vector module, corresponding to a sealing glue frame of the panel, for curing the sealing glue frame by using a plurality of light emitting elements of a light emitting unit. Wherein a center distance is set between each of the light emitting elements and one adjacent light emitting element, and a vertical distance is set between the light emitting elements and the panel. Hereby, the average curing rate for the sealing glue frame is obtained, the negative issues such as panel pollution caused by the insufficient curing rate is avoided.

Description

Panel UV curing device

The invention relates to an ultraviolet curing device, in particular to an ultraviolet curing device for a panel.

With the development of science and technology, the types of displays are becoming more and more diverse. Electronic products with displays have become indispensable products no matter in the workplace, school or life. Displays are an output device used to display images and Color, commonly used in monitors, is used in computer and TV screens.

The traditional display is a CRT display (Cathode Ray Tube), which is called a cathode ray tube display. The most common image tube display in the market in the early days, a CRT display is mainly composed of an electron gun (Electron Gun), a deflection coil (Deflection coils), a shadow mask ( Shadow mask), high-voltage graphite electrodes, phosphor powder coating (Phosphor) and glass casing, CRT monitors display images by exciting the phosphor powder on the inner surface of the screen by electron beams, because the phosphor powder will soon be lit up extinguished, so the electron gun must continuously excite these points cyclically. The higher the resolution of the screen, the more points need to be scanned, the higher the requirement for the scanning frequency of the electron gun, and the video bandwidth needs to be increased, and because the CRT monitor screen The four corners of the picture are incident by the electron gun at an oblique angle, which is prone to image distortion and edge distortion is also obvious, and the CRT monitor will definitely make the eyes feel tired after long-term viewing.

However, in recent years, the display industry and technology have gradually matured. Driven by the vigorous development of the market, it has evolved from a CRT display (Cathode Ray Tube) to a liquid-crystal display (LCD), which is a flat and thin display device. , composed of a certain number of color or black and white pixels, placed on the light source or reflecting the ambient light source, the current liquid crystal display has the characteristics of low power consumption. , Compared with CRT monitors (Cathode Ray Tube), LCD monitors will not produce radiation, even if you watch the screen for a long time, your eyes will not feel tired, and LCD monitors are currently widely used in more electronic products. For example: smart TVs, laptops, tablets, and smartphones.

Liquid crystal display uses liquid crystal material as the basic component. Because liquid crystal is between solid state and liquid state, it not only has the optical characteristics of solid crystal, but also has the characteristics of liquid flow, so it can be said to be an intermediate phase. The photoelectric effect produced by liquid crystals must first explain the physical characteristics of liquid crystals, including its viscosity (visco-sity), elasticity (elasticity) and its polarizability (polarizability). From the point of view of fluid mechanics, the viscosity and elasticity of liquid crystals are liquids with alignment properties, and different effects will be produced depending on the direction of the acting force.

In addition, in addition to the viscous response, the liquid crystal material of the liquid crystal display also has an elastic response. They all have a directional effect on the external force. Arranged in a way to produce a natural deflection phenomenon, and the electronic structure in the liquid crystal molecules has a strong electron conjugate movement ability. Here, when the liquid crystal molecules are subjected to an external electric field, it is easier to generate induced dipolarity ( induced dipolar), which is also the source of the interaction force between liquid crystal molecules. The liquid crystal display used in general electronic products is to use the photoelectric effect of liquid crystal, controlled by external voltage, and then through the refraction characteristics of liquid crystal molecules, and the light to obtain bright and dark conditions, and then achieve the purpose of imaging.

In order to meet the needs of the market and meet the needs of consumers, a flexible display has been developed in the market today. In addition to providing diversified appearance and freedom of design, the flexible display is also thin, light, drop-resistant and low-cost. Manufacturing and other advantages to replace some of the original display applications, and further create new applications and new markets.

For example, the current flexible display should be applied to high-end smart phones (such as: Samsung Edge), smart watches (such as: Apple Watch), this technology can not only provide high resolution, but also has a smaller size Radius of curvature, and when applied to notebook computers and tablet computers, so that notebook computers and tablet computers can increase the size of the display without increasing the weight, and also meet the needs of consumers for thinness and portability. Flexible displays can also be applied to new smart home devices. For example, most smart speakers in the current era are designed in a circular or cylindrical shape, but glass displays are flat, which undoubtedly limits their use in non-rectangular devices. However, using The current flexible display can not only realize the wrap-around screen, but also open a new audio-visual use mode, and provide a better user experience while ensuring the aesthetics of the product. From the above, it can be seen that the flexible display technology breaks through the limitations of traditional displays. , is not only suitable for mobile phones, but also creates new applications and new markets, and has gradually become a mainstream product.

The definition of flexible display refers to a display manufactured on a flexible plastic substrate during the manufacturing process, which can be laminated into a rigid protective glass and then integrated into a fixed product casing. In addition, in response to consumer demand, the traditional The flexible display can no longer meet the trend of the modern market. The current trend is to replace the traditional flexible display with high display density, large area and no damage when folded.

Display technology includes Organic Light-Emitting Diode (OLED), which has the advantages of self-luminescence, wide viewing angle, high contrast, low power consumption, and simple manufacturing process. It is used in the manufacturing process of OLED display panels In this process, the plastic frame of the display panel needs to be cured to prevent moisture from the external environment from entering the OLED display panel, which may lead to problems such as failure of the OLED display panel.

Among them, the application of ultraviolet curing to the plastic frame of the display panel is discussed. The ultraviolet light source is a special light source, which is widely used in various fields of industrial production and life. It can not only be applied to the purification and disinfection of water, air and material surfaces, It can also be used to cure pigments, glues, paints, and to make corrosion-resistant surfaces. UV curing is used in various industrial production processes. It is different from thermal curing. Thermal curing needs to rely on solvent volatilization for curing. Compared with UV curing in terms of curing time, UV curing only takes minutes instead of hours. To greatly shorten the production cycle time, there are many methods to excite the ultraviolet light source, one of which is to excite the ultraviolet light source through the light-emitting diode (LED). The light-emitting diode (LED) has low heat radiation, low power consumption, It has the advantages of long life, fast response and small size, and at the same time, it has directivity and can be directed to directly illuminate the plastic frame of the display panel.

UV curing refers to the process of using ultraviolet light to trigger photochemical reactions to produce polymer crosslinked networks. UV curing is suitable for printing, painting, decoration, stereolithography and assembly of various products and materials. Compared with other technologies, The use of ultraviolet energy curing can be considered as a low-temperature and high-speed process, and it is also a solvent-free process. The main advantage of ultraviolet curing is the processing speed of the material, which speeds up the curing or drying steps in the process. It can reduce ink or Coating wetting time to reduce defects and errors to improve the quality of the finished product.

However, the current ultraviolet curing device uses mercury lamps to irradiate the entire board on a large area, so a large amount of ultraviolet light is required to meet the curing requirements, which undoubtedly increases the cost, and a large amount of ultraviolet light consumes a large amount of electric energy. If one of them emits light Component damage will also cause problems such as poor uniformity of illumination, which not only affects the quality of illumination, but also affects the yield of the display panel.

Based on the above-mentioned problems, the present invention provides an ultraviolet curing device for panels, which solves the problem of poor uniformity of illumination of ultraviolet light, which cannot be uniformly irradiated, resulting in negative effects such as contamination of liquid crystals after contact with liquid crystals, and The present invention not only solves the problem of poor uniformity of illumination, but also achieves a uniform curing rate for the plastic frame of the display panel, and further solves the problems of negative effects caused by the display panel, and further achieves energy saving.

One object of the present invention is to provide a panel ultraviolet curing device, which uses a three-by-three array module corresponding to a sealant frame of a panel to avoid large-area irradiation, thereby achieving energy saving.

One object of the present invention is to provide an ultraviolet curing device for a panel, which uses a three-by-three array module corresponding to a sealant frame of a panel to achieve a uniform curing rate for the glue frame of the display panel, thereby solving the problem of the display panel The resulting negative effects.

One object of the present invention is to provide an ultraviolet curing device for a panel, which uses a plurality of light-emitting elements of a light-emitting unit to cure the sealant frame of the panel, wherein a center distance is set between each of the light-emitting elements, And set a vertical distance between the light-emitting elements and the panel, so as to achieve a uniform curing rate of the sealant frame, and at the same time avoid negative problems such as pollution of the panel due to insufficient curing rate, and further solve the impact Technical issues with display panels.

Based on the above purpose, the present invention provides a panel UV curing device, which is a three by three array module, the three by three array module is corresponding to a sealant frame of the panel, controlled by a programmable logic The unit individually controls the opening/closing of a single module in the X-axis or Y-axis of the three-by-three array module. The module in the three-by-three array module includes an input voltage, a modulation voltage circuit, an input component, a transistor, a constant current control circuit and a light emitting unit. The modulation circuit is electrically connected to the input voltage; the input component includes a first input terminal and a second input terminal, the input component is electrically connected to the programmable logic control unit, and the first input component of the input component The input terminal receives a first signal, and the second input terminal of the input component receives a second signal; the transistor is electrically connected to the modulating circuit, the first input terminal and the second input terminal, and the electrical The crystal is turned on/off correspondingly according to the first signal and the second signal; the constant current control circuit is electrically connected to the transistor; and the light emitting unit includes a plurality of light emitting elements, and the light emitting elements are electrically connected to the constant current control Circuit; wherein, the light-emitting elements emit ultraviolet light with a wavelength of 365nm~405nm, and the ultraviolet light is used to cure the sealant frame of the panel, and a center is arranged between the light-emitting elements distance, and a vertical distance between the light-emitting elements and the panel, the ratio of the center distance to the vertical distance is 0.5-1.

In order to enable your review committee members to have a further understanding and understanding of the characteristics of the present invention and the achieved effects, the following examples and accompanying descriptions are hereby provided:

Some terms are used in the description and claims to refer to specific components. However, those with ordinary knowledge in the technical field of the present invention should understand that the same component may be called by different terms. Moreover, the specification and claims The difference in name is not used as a way to distinguish components, but the difference in overall technology of components is used as a criterion for distinguishing. "Includes" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". Furthermore, the term "coupled" herein includes any direct and indirect means of connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly connected to the second device, or may be indirectly connected to the second device through other devices or other connection means.

First of all, please refer to the first figure, the third figure and the fourth figure, the first figure is a schematic diagram of the ultraviolet curing device of the panel of the present invention, the third figure is the circuit diagram of the ultraviolet curing device of the panel of the present invention, and the fourth figure It is the application diagram of the ultraviolet curing device of the panel of the present invention. As shown in the figure, the ultraviolet curing device of the panel of the present invention is a three-by-three array module 100, and the three-by-three array module 100 is corresponding to a sealant frame 210 of a panel 200, by the three-by-three array module 100 of the present invention The three-by-three array module 100 corresponds to the sealant frame 210 that irradiates the panel 200, and through a programmable logic control unit 10, one mode of the single X-axis or Y-axis of the three-by-three array module 100 is individually controlled. The group 70 means that the programmable logic control unit 10 controls a single module 70 in the X-axis or the module 70 in the Y-axis to be on or off. In one embodiment of the present invention, the three-by-three array module 100 of the present invention is used to irradiate the sealant frame 210 of the panel 200 to achieve a uniform curing rate of the sealant frame 210, and to solve the problem of The UV curing device of the prior art, due to the poor uniformity of illuminance, caused the negative effect of the panel 200, and the three-by-three array module 100 was individually controlled by the programmable logic control unit 10 The X-axis or Y-axis of the module 70 makes the use of the three-by-three array module 100 of the present invention more convenient.

Continuing the above, please refer to the second figure, which is a block diagram of the ultraviolet curing device for the panel of the present invention. In this embodiment, the module 70 of the present invention includes an input voltage Vcc, a modulation voltage circuit 30, an input component 20, a transistor 40, a constant current control circuit 50 and a light emitting unit 60, the modulation circuit 30 is electrically connected to the input voltage Vcc, and the input component 20 is electrically connected to the programmable Logic control unit 10, wherein the input component 20 includes a first input terminal 22 and a second input terminal 24, and the first input terminal 22 of the input component 20 is used to receive a first signal S1, and the input The second input terminal 24 of the component 20 is used for receiving a second signal S2. In one embodiment of the present invention, through the programmable logic control unit 10, the first signal S1 and the second signal S2 can be loaded into the memory for storage or execution, and through the programmable logic control unit 10 can check the status of the first input terminal 22 and the second input terminal 24 of the input component 20, and transmit the first signal S1 and the second signal S2 to the first input terminal of the input component 20 correspondingly 22 and the second input terminal 24 of the input component 20, which can know the programmable logic control unit 10 to check the operating status of the module 70, thereby increasing the reliability of the three by three array module 100.

Continuing the above, please continue to refer to the second figure, the third figure and the fourth figure, the second figure is a block diagram of the ultraviolet curing device of the panel of the present invention, the third figure is a circuit diagram of the ultraviolet curing device of the panel of the present invention, and The fourth figure is the application diagram of the ultraviolet curing device of the panel of the present invention, the transistor 40 of the present invention is electrically connected to the modulation circuit 30, the first input terminal 22 of the input component 20 and the input component 20 The second input terminal 24, and the transistor 40 receives the first signal S1 according to the first input terminal 22 and the second signal received by the second input terminal 24, so as to correspond to the single X axis or the Y axis. The module 70 is in the open state or the closed state, and the input component 20 further includes a resistive element R1 and a capacitive element C1, the resistive element R1 and the capacitive element C1 are both electrically connected to the input component 20, wherein the resistive element R1 is electrically connected to the first input end 22 of the input element 20, and the resistance element R1 is electrically connected to the second input end 24 of the input element 20, and the capacitive element C1 is electrically connected to the input element 20. The first input terminal 22 and the capacitive element C1 are electrically connected to the second input end 24 of the input component 20 , and the capacitive element C1 is connected in parallel with the resistive element R1 . In one embodiment of the present invention, the input voltage Vcc can be controlled in an ideal state by virtue of the bias electrical property of the transistor 40 being a metal-oxide-semiconductor field-effect transistor, except for boosting the three-by-three array In addition to the performance of the module 100, the degree of temperature rise of the three-by-three array module 100 is further reduced. In addition, the transistor 40 can be a junction field effect transistor (JFET) or an insulated gate double-loaded field effect transistor (IGBT). , High carrier mobility transistor (HEMT) or metal semiconductor field effect transistor (MESFET).

Continuing the above, please refer to the second figure and the third figure. The second figure is a block diagram of the ultraviolet curing device for the panel of the present invention, and the third figure is a circuit diagram of the ultraviolet curing device for the panel of the present invention. In this embodiment Among them, the constant current control circuit 50 of the present invention is electrically connected to the transistor 40 , and the light emitting unit 60 is electrically connected to the constant current control circuit 50 . In one embodiment of the present invention, the constant current control circuit 50 is used to control the current of the input voltage Vcc, so as to avoid excessive current, causing the entire circuit to be burned, or excessive current, causing the plurality of light emitting units 60 to The light-emitting elements 62 are damaged, and at the same time, the sealant frame 210 of the panel 200 cannot be illuminated correspondingly due to the damage of the light-emitting elements 62 .

Continuing the above, please continue to refer to the fourth and fifth figures. The fourth figure is a schematic diagram of the application of the ultraviolet curing device of the panel of the present invention to the three-by-three array module to irradiate the sealant frame, and the fifth figure is the present invention. The cross-sectional view of the ultraviolet curing device of the panel, in this embodiment, emits an ultraviolet light UV through the light-emitting elements 62, and the wavelength of the ultraviolet light UV is 365nm~405nm, and the distance between the light-emitting elements 62 is There is a center distance D1, and there is a vertical distance D2 between the light emitting elements 62 and the panel 200, and the ratio of the center distance D1 to the vertical distance D2 is 0.5˜1. In one embodiment of the present invention, the wavelength of the ultraviolet light UV of the present invention is 365nm~405nm, which belongs to the longer wavelength and has stronger penetrating power, which means that the ultraviolet rays are emitted through the light emitting elements 62 Light UV, which can make the sealant frame 210 of the panel 200 achieve curing, and is used to avoid the use of short-wave or medium-wave wavelengths due to the ultraviolet light UV of the prior art, except that the sealant frame 210 of the panel 200 cannot In addition, it further leads to negative effects such as pollution on the panel 200 .

式(一) In addition, further referring to the fifth figure, by setting the center distance D1 between the light-emitting elements 62 and setting the vertical distance D2 between the light-emitting elements 62 and the panel 200, the panel 200 The sealant frame 210 achieves a level of uniform irradiation, which prevents uneven irradiation from affecting the display quality of the panel 200 . As shown in the fifth figure, in the single array of the three by three array modules 100 of the present invention, the three modules 70 in the cross section are a width W of the single array, and the width of the single module 70 is W/3 , the vertical distance D2 between the light emitting elements 62 and the panel 200, the tangent function of the two is:

Formula (1)

式(二) Further take the inverse trigonometric function of formula (1), that is, take the arctangent function again as:

Formula (2)

As shown in the above formula (2), it can be seen that the illumination angle θ of the light emitting elements 62 corresponds to a width W of a single array (one-third of the width W is the width of a single module 70, W/3) The vertical distance D2 between the light emitting elements 62 and the panel 200, that is, the illumination angle θ of the light emitting elements 62 is one of the width W/3 of the module 70 and the vertical distance D2 The arctangent function is as shown in formula (2). Therefore, in the three-by-three array module 100, the present invention sets the light-emitting elements 62 and further sets the height of the placement table 220, so that the vertical distance D2 is set, so that the light-emitting elements The irradiation angle θ of 62 can allow the light emitting elements 62 to irradiate the sealant frame 210 evenly, so that the sealant frame 210 can be uniformly cured.

Continuing the above, please refer to the fifth figure, which is a cross-sectional view of the ultraviolet curing device of the panel of the present invention. In this embodiment, the three by three array module 100 of the present invention further includes a placement table 220, the The panel 200 is disposed above one of the placing platforms 220 , and the light emitting unit 60 of the present invention is disposed above one of the placing platform 220 and the panel 200 . In one embodiment of the present invention, the panel 200 can be placed on the top of the placement platform 220, and the module 70 can be controlled to be on or off through the programmable logic control unit 10, which means that the user Through the programmable logic control unit 10, the module 70 is turned on or off. When the user correspondingly turns on the module 70, the light emitting elements 62 of the light emitting unit 60 emit the ultraviolet light UV, so that The light of the ultraviolet light UV is correspondingly irradiated on the panel 200, which can make the three-by-three array module 100 of the present invention more flexible. Even control the height of the placing table 220, and adjust the vertical distance D2 between the light emitting elements 62 and the panel 200, and the ratio of the center distance D1 to the vertical distance D2 is 0.5~1, and maintain the The illumination angle θ of the light emitting element 62 makes the three-by-three array module 100 of the present invention more flexible.

Continuing the above, please continue to refer to the first figure, the fourth figure and the fifth figure, the first figure is a schematic diagram of the ultraviolet curing device for the panel of the present invention, the fourth figure is the application diagram of the ultraviolet curing device for the panel of the present invention, and The fifth figure is a cross-sectional view of the ultraviolet curing device of the panel of the present invention. In this embodiment, the sealant frame 210 of the panel 200 is provided with an irradiation position, and the irradiation position occupies the three by three array modules. One-third of one-hundredth of an area. In one embodiment of the present invention, the area is the combination of the modules 70 located on the centerline of the x-axis of the three-by-three array module 100 corresponding to the position of the sealant frame 210, or the area is According to the set position of the sealant frame 210 corresponding to the combination of the modules 70 located on the center line of the y-axis of the three by three array module 100, or the area is based on the set position of the sealant frame 210 corresponding to The combination of the staggered modules 70 located on the centerlines of the x and y axes of the three-by-three array module 100, through the above-mentioned combination setting, more of the ultraviolet light UV of the light-emitting elements 62 can be irradiated correspondingly On the sealant frame 210 of the panel 200, the ultraviolet light UV can penetrate and irradiate the sealant frame 210 of the panel 200, and the ultraviolet light UV can completely illuminate the sealant frame 210 of the panel 200 curing, thereby improving the bonding yield between the touch panel and the display module.

Continuing the above, please refer to the second figure and the third figure. The second figure is a block diagram of the ultraviolet curing device for the panel of the present invention, and the third figure is a circuit diagram of the ultraviolet curing device for the panel of the present invention. In this embodiment Among them, the modulation circuit 30 of the present invention converts the input signal S0 of the input voltage Vcc into a pulse width modulation signal S4. In one embodiment of the present invention, the pulse-width modulation signal S4 can be a pulse-width modulation signal (Pulse-width modulation, PWM). Through the modulation circuit 30 of the present invention, the input voltage can be Converting the amplitude of Vcc into a pulse with a fixed width is to convert the input signal S0 of the input voltage Vcc into the pulse width modulation signal S4. In addition, through the characteristics of the modulation circuit 30, it is used to control the input voltage. The input signal S0 can increase the reliability of the whole circuit.

Continuing the above, please refer to the second figure and the third figure. The second figure is a block diagram of the ultraviolet curing device for the panel of the present invention, and the third figure is a circuit diagram of the ultraviolet curing device for the panel of the present invention. In this embodiment Among them, the metal oxide semiconductor field effect transistor 40 of the present invention receives the pulse width modulation signal S4. In one embodiment of the present invention, the metal oxide semiconductor field effect transistor 40 The resistance in the conduction period is low, and the resistance in the cut-off period is almost infinite. Therefore, the metal oxide half field effect transistor 40 is suitable as a switching element, and the pulse width modulation signal S4 is received through the metal oxide half field effect transistor 40, and According to the pulse width modulation signal S4 as the basis for switching, when the pulse width modulation signal S4 is at a high level, the metal oxide semiconductor field effect transistor 40 is turned on to conduct the circuit, and when the pulse width modulation signal S4 is at a low level When set, the MOS field effect transistor 40 is turned off and disconnects the circuit.

Continuing the above, please refer to the second figure and the third figure. The second figure is a block diagram of the ultraviolet curing device for the panel of the present invention, and the third figure is a circuit diagram of the ultraviolet curing device for the panel of the present invention. In this embodiment Among them, the constant current control circuit 50 controls the output power of one of the light emitting elements 62 according to the pulse width modulation signal S4. In an embodiment of the present invention, the constant current control circuit 50 can adjust the output power of the light emitting elements 62 according to the duty cycle of the pulse width modulation signal S4 of the modulation circuit 30 , Here, the brightness of the light emitting elements 62 is adjusted correspondingly by using the different duty ratios of the pulse width modulation signal S4 to achieve the lighting brightness effect of the light emitting elements 62 .

It can be seen from the above-described embodiments that the ultraviolet curing device provided by the present invention can be irradiated by part of the light-emitting elements 62 to avoid the problem of large energy consumption caused by large-area irradiation, and the damage of a single light-emitting element 62 can be detected by the surrounding area. The rest of the light-emitting element 62 is reinforced, so it not only saves energy, but also maintains uniformity. Compared with the conventional mercury lamp irradiation, the present invention is further environmentally friendly and less likely to pollute the environment.

In summary, the ultraviolet curing device for the panel of the present invention uses the three-by-three array module to correspond to the sealant frame of the panel, and sets the center distance between the light-emitting elements of the present invention. , and the vertical distance between the light-emitting elements and the panel, in addition to achieving a uniform curing rate of the sealant frame, and at the same time avoiding negative problems such as contamination of the panel due to insufficient curing rate, in addition, by this The programmable logic control unit 10 of the invention corresponds to whether the module 70 is turned on or off. When the user correspondingly turns on the module 70, the light emitting elements 62 of the light emitting unit 60 emit the ultraviolet light UV, The light of the ultraviolet light UV is correspondingly irradiated on the panel 200, thereby making the irradiation position of the three-by-three array module 100 of the present invention more flexible, and one of the irradiation positions set by the sealant frame is occupied by the three Multiplied by one-third of the area of a three-by-three array module, and the area is the combination of modules of the three-by-three array module on the centerline of the x-axis or the three-by-three array module on the y The combination of the modules on the centerline of the axis or the combination of the staggered modules on the centerlines of the x and y axes of the three-by-three array module; and the corresponding three-by-three array module through X according to the size of the panel Or the electrical coupling of the Y-axis to achieve flexible and flexible applications.

Therefore, the present invention is novel, progressive and can be used in the industry. It should meet the patent application requirements of my country's patent law. I file an invention patent application in accordance with the law. I pray that the bureau will grant the patent as soon as possible. I sincerely pray.

However, the above-mentioned ones are only preferred embodiments of the present invention, and are not used to limit the scope of the present invention. For example, all equal changes and modifications are made according to the shape, structure, characteristics and spirit described in the scope of the patent application of the present invention. , should be included in the patent application scope of the present invention.

10: Programmable logic control unit 20: Input component 22: The first input terminal 24: The second input terminal 30:Modulation circuit 40: Gold Oxygen Half Field Effect Transistor 50: Constant current control circuit 60: Lighting unit 62: Light emitting element 70:Module 100: Three by three array module 200: panel 210: Sealant frame 220: place table C1: capacitive element D1: center distance D2: vertical distance R1: resistance element S0: input signal S1: The first signal S2: Second signal S4: PWM signal W: width UV: ultraviolet light Vcc: input voltage

The first figure: it is the schematic diagram of the ultraviolet curing device of the panel of the present invention; The second figure: it is a block diagram of the ultraviolet curing device of the panel of the present invention; The third figure: it is the circuit diagram of the ultraviolet curing device of the panel of the present invention; Figure 4: It is a schematic diagram of the application of the ultraviolet curing device for the panel of the present invention to irradiate the sealant frame with the three-by-three array module; and Figure 5: It is a cross-sectional view of the ultraviolet curing device for the panel of the present invention.

70:Module

62: Light emitting element

100: Three by three array module

210: Sealant frame

Claims (10)

An ultraviolet curing device for a panel, which is a three-by-three array module, the three-by-three array module is corresponding to a sealant frame of the panel, and the three-by-three array module is individually controlled through a programmable logic control unit One of the X-axis or Y-axis modules of the array module is turned on/off, and the module of the three-by-three array module includes: an input voltage; a modulation circuit electrically connected to the input voltage; An input component, which includes a first input terminal and a second input terminal, the input component is electrically connected to the programmable logic control unit, and the first input terminal of the input component receives a first signal, and the The second input terminal of the input component receives a second signal; a transistor, which is electrically connected to the modulation circuit, the first input terminal and the second input terminal, and the transistor is correspondingly turned on/off according to the first signal and the second signal; a certain current control circuit electrically connected to the transistor; and A light-emitting unit, which includes a plurality of light-emitting elements, and the light-emitting elements are electrically connected to the constant current control circuit; Wherein, the light-emitting elements emit an ultraviolet light with a wavelength of 365nm~405nm, and the ultraviolet light is used to cure the sealant frame of the panel, and a center distance is set between the light-emitting elements, And a vertical distance is set between the light-emitting elements and the panel, and the ratio of the center distance to the vertical distance is 0.5-1. The ultraviolet curing device for panels as described in claim 1 further includes a placing table, and the panel is arranged above one of the placing tables. The ultraviolet curing device for panels according to claim 2, wherein the light-emitting unit is disposed above one of the placing table and the panel. The ultraviolet curing device for panels as described in claim 1, wherein the modulating circuit converts an input signal of the input voltage into a pulse width modulated signal. The ultraviolet curing device for panels as described in claim 4, wherein the transistor switches the pulse width modulation signal. The ultraviolet curing device for panels as described in claim 4, wherein the constant current control circuit controls an output power of the light emitting elements according to the pulse width modulation signal. The ultraviolet curing device for panels according to claim 1, wherein the input component further includes a resistance element, and the resistance element is electrically connected to the first input end and the second input end. The ultraviolet curing device for panels as described in Claim 7 further includes a capacitive element electrically connected to the first input end and the second input end, and connected in parallel to the resistive element. The ultraviolet curing device for panels as described in claim 1, wherein, the irradiation position of the sealant frame is set to occupy one third of the area of the three by three array modules, and the area is the The combination of modules located on the centerline of the x-axis of the three-by-three array module or the combination of modules located on the centerline of the y-axis of the three-by-three array module or the combination of modules located on the x-axis and the three-by-three array module Combination of staggered modules of the centerline of the y-axis. The ultraviolet curing device for panels as claimed in claim 1, wherein an irradiation angle of the light-emitting elements is an arc tangent of a width of the module and a vertical distance between the light-emitting elements and the panel function value.

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