CN209745404U - on-line color coordinate testing system for quantum dot film production and corresponding production line - Google Patents
on-line color coordinate testing system for quantum dot film production and corresponding production line Download PDFInfo
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- CN209745404U CN209745404U CN201920585107.5U CN201920585107U CN209745404U CN 209745404 U CN209745404 U CN 209745404U CN 201920585107 U CN201920585107 U CN 201920585107U CN 209745404 U CN209745404 U CN 209745404U
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Abstract
the utility model provides an online color coordinate testing system for quantum dot film production, which comprises a precuring color coordinate testing device and a deep layer curing color coordinate testing device, wherein the precuring color coordinate testing device is arranged behind the precuring device in the production line; the deep curing color coordinate testing device is arranged behind the deep curing device in the production line; the two testing devices adopt the same structure and comprise a color analyzer and a backlight module. The color analyzer is arranged above the quantum dot film to be detected, and the backlight module is arranged below the quantum dot film to be detected and at a position corresponding to the color analyzer. The two testing devices respectively carry out detection and compare the detection results of the two times, so that the stability of the quality of the quantum dot film product is ensured, and the yield is improved. Meanwhile, the detection device adopts an on-line detection mode to carry out real-time on-line detection on the pre-cured quantum film, so that the quality problem can be found in time, and the loss of raw materials is effectively reduced.
Description
Technical Field
The utility model belongs to quantum dot membrane field of making, concretely relates to an online color coordinate test system for production of quantum dot membrane.
Background
With the development of semiconductor technology, various novel materials have been rapidly developed in various fields. The quantum dots typically exist as a novel nano material, and have an increasingly large effect in the field of optics and an increasingly rapid development speed.
Conventional LCD devices are each equipped with a backlight unit which together convert the white backlight into the desired target display color. Such conventional light emitting devices have limited performance of emitting colored light and low luminous efficiency; after the traditional LCD equipment is matched with the quantum dot film, the display with high purity, high luminous efficiency and high color gamut can be obtained by combining the blue light source, the color display effect of the display is improved, and the application in different fields is further expanded.
Due to the particularity of the application field of the quantum dot film, the requirements on the optical performance of the quantum dot film are strict; the red quantum dots and the green quantum dots which are core materials in the quantum dot film have very high activity, and because the red quantum dots and the green quantum dots are mutually absorbed, the optical properties of the quantum dot film can be influenced by the small change of the content of the quantum dots in the quantum dot film, so that the product yield is low easily in the production process, and therefore, the online optical performance detection of the quantum dot film becomes necessary.
In general production processes, optical performance detection, especially color coordinate test, of the quantum dot film adopts an off-line type, namely, sampling test is carried out after the production process of a product is finished. Due to the sensitivity of the optical properties of the quantum dots and the high requirements of the display field on the optical film, the production process is difficult to ensure that products meeting the required color coordinates can be produced at one time, an off-line color coordinate testing system is adopted, the sampling test can be carried out only after the production process is finished, and the waste of raw materials and the reduction of the product yield are easily caused by repeated operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an online color coordinate testing system for quantum dot film production aiming at the prior technical defects, the testing system is arranged in a quantum dot film production line comprising a pre-curing device and a deep curing device, and is characterized by comprising a pre-curing color coordinate testing device and a deep curing color coordinate testing device;
The pre-curing color coordinate testing device is arranged behind the pre-curing device and in front of the deep curing device in the production line;
the deep curing color coordinate testing device is arranged behind the deep curing device in the production line;
The pre-curing color coordinate testing device and the deep curing color coordinate testing device adopt the same structure and both comprise a color analyzer and a backlight module;
The color analyzer is arranged above the quantum dot film to be detected and used for detecting spectral information of the quantum dot film and judging the quality condition of the quantum dot film, and the backlight module is arranged below the quantum dot film to be detected and at a position corresponding to the color analyzer and used for providing a backlight light source for testing the quantum dot film.
Furthermore, the backlight module comprises: the backlight module comprises a light source, a reflecting film, a light guide plate, a first diffusion film, a first brightness enhancement film, a second brightness enhancement film and a second diffusion film;
The reflection film, the light guide plate, the first diffusion film, the first brightness enhancement film, the second brightness enhancement film and the second diffusion film are sequentially arranged from bottom to top, and the light source is arranged at the side end of the light guide plate.
Still further, the light source emits blue light having a wavelength of 450 nm.
Further, the reflective film is a metal reflective film.
Furthermore, the light guide plate is a side light-in type light guide plate.
Further, the first diffusion film and the second diffusion film are surface-coated with optical light scattering particles.
further, the first brightness enhancement film and the second brightness enhancement film are micro-prism brightness enhancement films.
furthermore, the production line for quantum dot film production comprises a pre-curing device, a deep curing device and upper and lower coating press rollers, and is characterized by further comprising the online color coordinate testing system for quantum dot film production.
The utility model has the advantages that:
the utility model provides a detection device adopts two detection device to carry out the mode that the color space coordinate detected and contrast testing result to carry out quality testing to the quantum dot membrane, carries out twice through the quantum membrane to the quantum membrane after solidifying in advance and the quantum membrane after the deep solidification to compare testing result and the target color space coordinate after solidifying testing result, the deep solidification in advance, ensure quantum dot membrane product quality's stability, improve the yields.
the utility model discloses a backlight unit can be effectual converts the pointolite into the area source, through the effect of reflectance coating, brightness enhancement film and diffusion barrier, provides the even blue light area source of luminance, makes the color analysis appearance obtain more stable testing result at the in-process that detects the quantum dot membrane, is favorable to ensureing the stability of quantum dot membrane product quality.
And simultaneously, the utility model provides a detection device adopts online detection mode, sets up detection device on the production line, carries out real-time on-line measuring to the quantum membrane of solidifying in advance, can discover in advance whether there is the quality problems in the product through on-line measuring's mode, in case the product takes place quality problems and in time adjusts the ratio is glued to quantum point in the feeding system, need not to wait to the deep solidification of quantum dot membrane and finish can discover quality problems. And the quality problems detected and found on the production line are corrected in time, so that the loss of raw materials can be effectively reduced.
drawings
Fig. 1 is a schematic structural diagram of an example of the present invention.
Fig. 2 is a schematic structural diagram of a backlight module according to an embodiment of the present invention.
The curing device comprises a pre-curing device 100, a color analyzer 200, a backlight module 300, a light source 301, a reflecting film 302, a light guide plate 303, a first diffusion film 304, a first brightness enhancement film 305, a second brightness enhancement film 306, a second diffusion film 305 and a deep curing device 400.
Detailed Description
The following describes the present invention with reference to the accompanying drawings 1-2.
As shown in fig. 1, an online color coordinate testing system for quantum dot film production is provided in a quantum dot film production line, which further includes a pre-curing device 100, a deep curing device 400, and upper and lower coating rollers.
The test system comprises a pre-curing color coordinate test device and a deep curing color coordinate test device. The precured color coordinate testing device is arranged behind the precuring device 100 and in front of the deep layer curing device 400 in the production line and is used for testing the color coordinate of the precured quantum dot film in the production line; the deep curing color coordinate testing device is arranged behind the deep curing device 400 in the production line and is used for testing the color coordinate of the quantum dot film subjected to deep curing in the production line.
The pre-curing color coordinate testing device and the deep curing color coordinate testing device adopt the same structure and comprise a color analyzer 200 and a backlight module 300. The color analyzer 200 is disposed above the quantum dot film to be tested in the production line, and the backlight module 300 is disposed below the quantum dot film to be tested in the production line and at a position matched with the color analyzer 200. The backlight module 300 is used for providing a backlight source for the quantum dot film test, and the color analyzer 200 is used for detecting the spectrum information of the quantum dot film and judging the quality condition of the quantum dot film.
In this example, CA-310 manufactured by Konica Minolta was used as the color analyzer 200.
The backlight module 300 further includes a light source 301, a reflective film 302, a light guide plate 303, a first diffusion film 304, a first brightness enhancement film 305, a second brightness enhancement film 306, and a second diffusion film 307. The reflective film 302, the light guide plate 303, the first diffusion film 304, the first brightness enhancement film 305, the second brightness enhancement film 306, and the second diffusion film 307 are sequentially arranged from bottom to top, and the light source 301 is disposed at a side end of the light guide plate 303.
In this embodiment, the light source 301 is a light source emitting blue light with a wavelength of 450nm, the light guide plate 303 is a side-entry light guide plate, and the surfaces of the first diffusion film 304 and the second diffusion film 307 are coated with optical light scattering particles; the first brightness enhancement film 305 and the second brightness enhancement film 306 are micro-prismatic brightness enhancement films.
The light source 301 converts the traveling direction of the light source 301 through the light guide plate 303 to form a surface light source, the reflective film 302 disposed below the light guide plate 303 reflects the light leaked from the bottom surface of the light guide plate 303 back into the light guide plate 303 to prevent the light source from leaking outside, so as to increase the light utilization efficiency, and finally the light is brightened and diffused and transmitted through the first diffusion film 304, the first brightness enhancement film 305, the second brightness enhancement film 306 and the second diffusion film 307, and finally passes through the quantum dot film to be tested to generate a new color and pattern, so that the color analyzer 200 performs a color coordinate test on the quantum dot film.
The use method of the online color coordinate testing system for quantum dot film production comprises the following steps:
The quantum dots are dispensed by a glue supply system and conveyed to a coating head, and are coated with a barrier film through an upper coating press roller and a lower coating press roller, the coated quantum dot film passes through the pre-curing device 100 under the operation of a production line, an upper UV-LED lamp and a lower UV-LED lamp of the pre-curing device 100 run at a lower power, and the quantum dot film is primarily cured after passing through the pre-curing device 100.
When the preliminarily cured quantum dot film passes through the backlight module 300 in the pre-curing color coordinate testing device, the color analyzer 200 directly above the backlight module 300 captures corresponding spectral information, the corresponding color coordinate at the moment can be displayed after conversion, the color coordinate is compared with the target color coordinate, and the quality condition of the quantum dot film is preliminarily judged.
The quantum dot film passes through the pre-curing color locus mapping testing device and then passes through the deep curing device 400, the upper UV-LED lamp and the lower UV-LED lamp of the deep curing device 400 operate at high power, and the quantum dot film passes through the deep curing device 400 and then is cured in a deep layer.
When the deeply cured quantum dot film passes through the backlight module 300 in the deep curing color coordinate testing device, the color analyzer 200 directly above the backlight module 300 captures corresponding spectral information, the corresponding color coordinate at the moment can be displayed after conversion, the color coordinate is compared with a target color coordinate and a pre-cured tested color coordinate, and the quality condition of the quantum dot film is further judged.
Finally, winding the quantum dot film with qualified quality by a winding device to obtain a finished film; and if the quality is unqualified, adjusting the proportion of the quantum dot solution and the glue in the glue supply system, passing through the testing device again, and repeating the operation until a product with qualified quality is obtained.
Although the present invention has been described in connection with the preferred embodiments, the embodiments are not intended to limit the present invention. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. The scope of protection of the invention should therefore be determined with reference to the claims that follow.
Claims (8)
1. An online color coordinate testing system for quantum dot film production, the testing system being arranged in a quantum dot film production line comprising a pre-curing device (100) and a deep curing device (400), characterized by comprising a pre-curing color coordinate testing device and a deep curing color coordinate testing device;
The pre-curing color coordinate testing device is arranged behind the pre-curing device (100) and in front of the deep curing device (400) in the production line;
The deep curing color coordinate testing device is arranged behind the deep curing device (400) in the production line;
The pre-curing color coordinate testing device and the deep curing color coordinate testing device adopt the same structure and both comprise a color analyzer (200) and a backlight module (300);
The color analyzer (200) is arranged above the quantum dot film to be detected and used for detecting spectral information of the quantum dot film and judging the quality condition of the quantum dot film, and the backlight module (300) is arranged below the quantum dot film to be detected and at a position corresponding to the color analyzer (200) and used for providing a backlight source for testing the quantum dot film.
2. an on-line color coordinate testing system for quantum dot film production according to claim 1, wherein the backlight module (300) comprises: a light source (301), a reflective film (302), a light guide plate (303), a first diffusion film (304), a first brightness enhancement film (305), a second brightness enhancement film (306), and a second diffusion film (307);
The light source module comprises a reflecting film (302), a light guide plate (303), a first diffusion film (304), a first brightness enhancement film (305), a second brightness enhancement film (306) and a second diffusion film (307), wherein the layers are sequentially arranged from bottom to top, and the light source (301) is arranged at the side end of the light guide plate (303).
3. An on-line color coordinate testing system for quantum dot film production according to claim 2, wherein the light source (301) emits blue light with a wavelength of 450 nm.
4. An on-line color coordinate testing system for quantum dot film production according to claim 2, wherein the reflective film (302) is a metallic reflective film.
5. The on-line color coordinate testing system for quantum dot film production according to claim 2, wherein the light guide plate (303) is a side-entry light guide plate.
6. an on-line color coordinate testing system for quantum dot film production according to claim 2, wherein the first diffusion film (304) and the second diffusion film (307) are surface coated with optical light scattering particles.
7. An on-line color coordinate testing system for quantum dot film production as recited in claim 2, wherein the first and second brightness enhancement films (305, 306) are micro-prism brightness enhancement films.
8. A production line for quantum dot film production, comprising a pre-curing device (100), a deep curing device (400) and upper and lower coating press rolls, characterized in that the production line further comprises an on-line color coordinate testing system for quantum dot film production as claimed in claims 1-7.
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| CN201920585107.5U CN209745404U (en) | 2019-04-26 | 2019-04-26 | on-line color coordinate testing system for quantum dot film production and corresponding production line |
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| CN201920585107.5U CN209745404U (en) | 2019-04-26 | 2019-04-26 | on-line color coordinate testing system for quantum dot film production and corresponding production line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111647380A (en) * | 2020-05-06 | 2020-09-11 | 武汉华彩光电有限公司 | Quantum dot film with high luminous efficiency and preparation process thereof |
| CN115891388A (en) * | 2022-11-18 | 2023-04-04 | 南京贝迪新材料科技股份有限公司 | Preparation device for uniformly compounding quantum dot films through photocuring |
-
2019
- 2019-04-26 CN CN201920585107.5U patent/CN209745404U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111647380A (en) * | 2020-05-06 | 2020-09-11 | 武汉华彩光电有限公司 | Quantum dot film with high luminous efficiency and preparation process thereof |
| CN115891388A (en) * | 2022-11-18 | 2023-04-04 | 南京贝迪新材料科技股份有限公司 | Preparation device for uniformly compounding quantum dot films through photocuring |
| CN115891388B (en) * | 2022-11-18 | 2023-08-04 | 南京贝迪新材料科技股份有限公司 | Device for preparing uniform composite quantum dot film through photo-curing |
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Denomination of utility model: Online color coordinate measuring system and corresponding production line for quantum dot film production Effective date of registration: 20230209 Granted publication date: 20191206 Pledgee: Wuhan area branch of Hubei pilot free trade zone of Bank of China Ltd. Pledgor: Wuhan Huacai photoelectric Co.,Ltd. Registration number: Y2023420000035 |