CN111613169B - Jewelry color grading display device - Google Patents
Jewelry color grading display device Download PDFInfo
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- CN111613169B CN111613169B CN202010393587.2A CN202010393587A CN111613169B CN 111613169 B CN111613169 B CN 111613169B CN 202010393587 A CN202010393587 A CN 202010393587A CN 111613169 B CN111613169 B CN 111613169B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2003—Display of colours
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
Abstract
The invention discloses a jewelry color grading display device, which comprises: the device comprises a high color gamut display module, a color adjusting and controlling module, a color information display module, a multimedia information storage module and a power supply module. The high color gamut display module is used for displaying the color information generated by the color adjusting and controlling module and the picture information pre-stored in the multimedia information storage module; the color adjusting and controlling module can realize fine adjustment and control on the hue, saturation and brightness of the color; the color information display module is used for displaying the information of the currently displayed color. The jewelry color grading display device disclosed by the invention has the advantages that the color range is wide, the displayed color is high in reality, and color grading standard systems of different jewels can be collected and input into the multimedia information storage module for color grading of jewelry, so that the uniformity of jewelry color grading standards is promoted.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device for jewelry color grading comparison.
Background
With the increasing attention on the quality and value of jewelry, the problem of describing the color of jewelry, particularly the color of colored gems, needs to be solved urgently. For color grading of colorless-pale yellow series diamonds, a color scale is used, and since its color quality is whether it is tinted or whiter, it is only necessary to describe the degree of tint. The color grading of the diamond is much simpler than that of a colorful colored gemstone. For the color grading of colored gemstones, it is very difficult if a color matching stone is also used. Standard gem samples need to be purchased, a set of gem color grading standards need to be expensive, and proper protection is needed in actual use. And it is difficult to ensure that there is no color difference between each set of gem color grading standards. Currently, there are two major international systems for the classification of colored gemstones, namely, the american institute of Gemstones (GIA) and the american society of gemstones (AGS). The description and grading of gem color respectively adopt Gemset of GIA and GemDialogue color system of Howard Rubin, which are both used for printing a series of colors into a color card binding book, and because of the printed card, the color system inevitably changes the color during the use process, thereby influencing the color grading result. Moreover, the minimum color variation that such a color system can achieve is also not high, resulting in a low accuracy of color grading.
At present, China does not establish a grading standard of a colored gemstone, and in order to better standardize the jewelry evaluation market, the establishment of the grading standard of the colored gemstone is imperative. The invention discloses a display device for color grading, on one hand, referring to the color of a colored gem sample needing to be compared, adjusting a color control module of the device to obtain the color closest to the color, and recording the color information; on the other hand, standard samples of various jewel color grades can be collected into a standard electronic picture library to be stored in the device, electronic pictures are called out to carry out color comparison according to the types of colored jewels needing comparison, the electronic picture information collected at one time can be applied to a plurality of sets of color grading display devices, and the grading standard unification adopted by each jewelry evaluation platform can be ensured.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art and provides a display device for jewelry color grading.
To achieve the above-mentioned one display device for jewelry color grading, the display device includes: the device comprises a display module, a color adjusting and controlling module, a color information display module, a multimedia information storage module and a power supply module.
Optionally, the display module of the jewelry color grading display device has a color gamut ranging from 90% to 150% NTSC;
preferably, the display module of the jewelry color grading display device has a color gamut ranging from 100% to 150% NTSC.
Optionally, the number of the color information displayed by the display module of the jewelry color grading display device at the same time is 3-12.
Optionally, the color adjusting and controlling module of the jewelry color grading display device comprises a multimedia information calling module, a color roughing module, a red fine tuning module, a green fine tuning module and a blue fine tuning module.
Optionally, a red fine tuning module, a green fine tuning module and a blue fine tuning module in the color adjusting and controlling module are used for adjusting 1 color in the display module, the minimum color change which can be realized by single adjustment is 1-20JND, and the rest 2-11 displayed colors are automatically generated according to the adjusted 1 color and the tone gradual change of 1-20 JND.
Optionally, the color roughing module in the color adjusting and controlling module is configured to call colors preset in the color adjusting and controlling module, the number of the colors displayed at each time is 10 to 12, and the hue difference between each color is 20 to 300 JND.
Optionally, the multimedia information storage module of the jewelry color grading display device stores electronic picture information corresponding to the current jewelry color grading standard sample, and the electronic picture information is displayed in the display module of the jewelry color grading display device through the multimedia information calling module in the color adjusting and controlling module.
Optionally, the electronic picture information corresponding to the jewelry color grading standard in the multimedia information storage module of the jewelry color grading display device may be updated manually.
Optionally, the color information display module of the jewelry color grading display device displays the colors currently displayed in the current display module or the chromaticity parameters of the electronic pictures in real time.
Drawings
Fig. 1 is a schematic cross-sectional view of a jewelry color grading display device.
Fig. 2 is a color gamut value of a display module in the jewelry color grading display device.
Fig. 3 shows that the display module in the jewelry color grading display device simultaneously displays 6 colors with larger color difference for comparison.
Fig. 4 shows that the display module in the jewelry color grading display device simultaneously displays 6 colors with smaller color difference for comparison.
FIG. 5 is an electronic picture of a set of ruby color grading standards displayed by the display module of the jewelry color grading display device for comparison.
Fig. 6 shows a set of electronic pictures of sapphire color grading standards displayed by the display module of the jewelry color grading display device for comparison.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes a jewelry color grading display device disclosed in the present invention in detail with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional view of a jewelry color grading display device, as shown in fig. 1, the jewelry color grading display device comprising: the display module 101, the color adjustment and control module 102, the color information display module 103, the multimedia information storage module and the power supply module 104 are integrated together. The display module is a high-color-gamut display screen and is used for displaying color information generated by the color adjusting and controlling module and electronic picture information pre-stored in the multimedia information storage module; the multimedia information calling module in the color adjusting and controlling module is used for calling the electronic picture information which is stored in the multimedia information storage module in advance; the color roughing module in the color adjusting and controlling module is used for calling colors preset in the color adjusting and controlling module, the number of the displayed colors each time is 10-12, the hue difference between the colors is 20-300JND, and the color roughing module can be used for quickly positioning the color of the jewelry to be compared nearby; the method comprises the following steps that 1 color in a display module is adjusted by a red fine adjustment module, a green fine adjustment module and a blue fine adjustment module in a color adjustment and control module, the color is selected by a color rough selection module, the minimum color change which can be realized by single adjustment is 1-20JND, and the rest 2-11 displayed colors are automatically generated according to the adjusted 1 color according to the tone gradual change of 1-20JND, so that the colors are conveniently and finely compared; the fine adjustment and control of the hue, saturation and brightness of the color can be realized through the red fine adjustment module, the green fine adjustment module and the blue fine adjustment module; the color information display module is used for displaying the chromatic value of the currently displayed color.
The jewelry colorimetric device disclosed by the invention has the advantages that the covered color range is wide, the displayed color has high reality degree, and the minimum color change which can be realized is close to the level (1JND) distinguished by human eyes. The color grading standard samples of different colored gems can be collected and input into the multimedia information storage module for color grading of jewelry, so that the unification of color grading standards is realized.
Fig. 2 shows the color gamut values of the high color gamut display screens used in the display modules of embodiments 1 and 2 of the present invention, wherein an OLED display screen is used in embodiment 1, the color gamut value is 105% NTSC, a 10-bit control system is used in the display modules, and the OLED display screen can realize 1073741824 color changes by current control, and compared with 60000 color changes of the GemDialogue color manual, the jewelry color grading display device in this embodiment can provide the most accurate color contrast standard in color grading. Especially for some high value jewelry, the weak color difference may cause the price difference to be large, such as our emperor green jade, pigeon red ruby, the color of these high value jewelry is described by some abstract concepts, which is not favorable for realizing the standardization and transparentization of the jewelry value evaluation. The jewelry color grading display device in the embodiment 2 adopts a quantum dot display screen with a higher color gamut, more specifically, an LCD display screen based on perovskite quantum dot material, the color gamut value is 125% NTSC, an 8-bit control system is adopted in a display module, and the LCD can realize 256 × 256 × 256 × 16777216 color changes through voltage control, so that the jewelry color grading display device in the embodiment can provide more accurate color contrast standard samples in color grading compared with 60000 color changes of a GemDialogue color manual. The display module preferably selects a display screen with a color gamut value not lower than 100% NTSC, which is beneficial to expanding the color display range of the jewelry color grading display device and ensures that the color displayed by the jewelry color grading display device is closer to the real color of the jewel. As for other parameters of the display screen, such as resolution, brightness, refresh frequency, etc., conventional parameter configurations known to those skilled in the art are adopted.
Fig. 3 shows a group of colors with large color difference displayed by the pearl color grading device in embodiment 1 of the present invention for the initial comparison of the gem colors, the color difference is about 40JND by calculation, and the group of colors is selected by the color roughing module in the color adjusting and controlling system. In actual use, according to the color of the gem to be compared, a rough color range is obtained by utilizing a color rough selection module. As shown in fig. 4, the third color from the left in fig. 3 is finely adjusted by using a red fine adjustment module, a green fine adjustment module and a blue fine adjustment module in the color adjustment and control system to obtain 1 color which is slightly different from the color of the gemstone to be compared, and then the system automatically generates 5 additional colors according to the hue difference of 10JND, and further compares the colors with the color of the gemstone to finally obtain the color closest to the gemstone. The minimum color change which can be realized by the red fine tuning module, the green fine tuning module and the blue fine tuning module in the color control module is 1-20JND, wherein the color change limit which can be distinguished by human eyes is 1JND, for convenience of understanding, the JND can be converted into delta (u 'v'), and the change value of 1JND corresponding to delta (u 'v') is 0.00384. In embodiment 1 of the present invention, the OLED display device respectively and finely controls the luminance of the RGB pixel units by current, and through practical tests, the OLED display device can realize a minimum change of 0.0005 for the CIEx or CIEy value by the current change of RGB, and the Δ (u 'v') change value obtained through calculation is 0.0006, which is much smaller than 1JND recognizable by human eyes. Specifically, when a red contrast color is displayed, the adjusting unit with the highest precision in the color adjusting and controlling system is adjusted to adjust the CIE color coordinates (0.600, 0.200) in the original color information display module to (0.6035, 0.2035), at this time, the change value of Δ (u 'v') obtained through calculation is 0.00414, which is close to 1JND, and then, according to the increasing relation of 1JND, 3 to 12 similar colors are automatically displayed in the display module for contrast. And finally, when the color of the gem is basically completely consistent with a certain color in the color grading display device, reading the corresponding gem color information from the color information display module of the device. The color information is preferably displayed in RGB, and may be displayed in any other system such as CMYK and HSL.
Fig. 5 is an electronic picture of a set of ruby color grading standard samples pre-stored in a multimedia information storage module, displayed by the pearl color grading device in embodiment 3 of the present invention, for comparing with ruby to be color graded. Correspondingly, fig. 6 is an electronic picture of a set of sapphire color grading standard samples pre-stored in the multimedia information storage module, displayed by the pearl color grading device in embodiment 4 of the present invention, for comparing with sapphire to be color graded. The information of the existing colored gemstone color grading standard sample is acquired, processed by corresponding color and then input into the multimedia information storage module, so that the color of the acquired picture is consistent with that of the gemstone sample. When the color grading comparison is performed by using the mode, the grading standard information of the gem is preferentially displayed in the color information display module, specifically, the grading standard information corresponding to the ruby from left to right in embodiment 3 is as follows: dark Red, Deep Red, Vivid Red, Strong Red. In example 5 of the present invention, there are displayed a predetermined set of the metachromatic stones for color grading of diamonds, an electronic photograph of 12 diamonds of the metachromatic stones displayed from left to right in the display module, and 12 kinds of grade information of color grading of diamonds, i.e., D, E, F, G, H, I, J, K, L, M, N-O, P-R, displayed in the color information display module. Optionally, if necessary, each group of electronic pictures displayed in the display module may also display the chromaticity information of different pictures in the color information display module according to the RGB current values of the background IC and the pre-stored relationship between the corresponding current and chromaticity.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (9)
1. A jewelry color grading display device comprising: the device comprises a display module, a color adjusting and controlling module, a color information display module, a multimedia information storage module and a power supply module;
the multimedia information storage module stores electronic picture information corresponding to the current jewelry color grading standard sample, and the electronic picture information is displayed in a display module of the jewelry color grading display device through a multimedia information calling module in the color adjusting and controlling module.
2. The jewelry color grading display device of claim 1, wherein the display module has a color gamut ranging from 90% to 150% NTSC.
3. The jewelry color grading display device of claim 2, wherein the display module has a color gamut ranging from 100% to 150% NTSC.
4. The jewelry color grading display device according to claim 1, wherein the number of color information displayed by the display module at the same time is 3-12.
5. The jewelry color grading display device according to claim 1, wherein said color adjusting and controlling module comprises a multimedia information calling module, a color roughing module, a red fine tuning module, a green fine tuning module, a blue fine tuning module.
6. The jewelry color grading display device according to claim 4 or 5, wherein 1 color in the display module is adjusted by a red fine adjustment module, a green fine adjustment module and a blue fine adjustment module in the color adjusting and controlling module, the minimum color change which can be realized by a single adjustment is 1-20JND, and the rest 2-11 displayed colors are automatically generated according to the adjusted 1 color and the tone gradual change of 1-20 JND.
7. The jewelry color grading display device according to claim 5, wherein the color roughing module in the color adjusting and controlling module is used for calling colors preset in the color adjusting and controlling module, the number of the colors displayed at each time is 10-12, and the hue difference between each color is 20-300 JND.
8. The jewelry color grading display device according to claim 1, wherein the electronic picture information corresponding to the jewelry color grading standard sample in the multimedia information storage module can be manually updated.
9. The jewelry color grading display device according to claim 1, wherein the color information display module displays in real time the color being displayed in the current display module or the colorimetric parameters of the electronic picture.
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| CN202010393587.2A CN111613169B (en) | 2020-05-11 | 2020-05-11 | Jewelry color grading display device |
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| CN202010393587.2A CN111613169B (en) | 2020-05-11 | 2020-05-11 | Jewelry color grading display device |
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| CN111613169B true CN111613169B (en) | 2021-07-23 |
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| CN114136750B (en) * | 2021-11-26 | 2022-10-28 | 国检中心深圳珠宝检验实验室有限公司 | Liquid standard sample for ruby color grading and preparation method thereof |
| CN114136446B (en) * | 2021-11-26 | 2022-08-09 | 国检中心深圳珠宝检验实验室有限公司 | Sapphire color-graded liquid standard sample and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833164A (en) * | 2003-07-07 | 2006-09-13 | 格兰计算机工业有限公司 | Method and system for prediction the color of gemstones |
| CN203203921U (en) * | 2013-04-27 | 2013-09-18 | 中国地质大学（北京） | Munsell color card color comparing device used for color comparison of gem |
| CN106679811A (en) * | 2016-11-23 | 2017-05-17 | 石朴（上海）光学科技有限公司 | Automatic grading measurement method of diamond color |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7388656B2 (en) * | 2005-12-30 | 2008-06-17 | Yan Liu | Method and system for color grading of gemstones |
| US9678018B2 (en) * | 2015-03-30 | 2017-06-13 | Gemological Institute Of America Inc. (Gia) | Apparatus and method for assessing optical quality of gemstones |
| RU2739134C1 (en) * | 2017-12-29 | 2020-12-21 | Голдвэй Текнолоджи Лимитед | Method and system for determining a color group for diamonds |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833164A (en) * | 2003-07-07 | 2006-09-13 | 格兰计算机工业有限公司 | Method and system for prediction the color of gemstones |
| CN203203921U (en) * | 2013-04-27 | 2013-09-18 | 中国地质大学（北京） | Munsell color card color comparing device used for color comparison of gem |
| CN106679811A (en) * | 2016-11-23 | 2017-05-17 | 石朴（上海）光学科技有限公司 | Automatic grading measurement method of diamond color |
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