CN107993623B - Driving system for converting color display into gray scale display - Google Patents
Driving system for converting color display into gray scale display Download PDFInfo
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- CN107993623B CN107993623B CN201711376551.8A CN201711376551A CN107993623B CN 107993623 B CN107993623 B CN 107993623B CN 201711376551 A CN201711376551 A CN 201711376551A CN 107993623 B CN107993623 B CN 107993623B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 60
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
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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 driving system for converting a color display into gray scale display, which comprises a digital-to-analog conversion differential module, a gray scale conversion module and a core decoding module, wherein the digital-to-analog conversion differential module and the gray scale conversion module are both connected with the core decoding module, the digital-to-analog conversion differential module converts an input signal into a differential signal, and the gray scale conversion module converts the differential signal into a first gray scale display signal and inputs the first gray scale display signal into the core decoding module. The invention has the beneficial effects that the color display screen can display color, namely gray scale display; and the displayed gray-scale image has good quality and reduced cost.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a driving system for converting a color display into gray scale display.
Background
At present, medical diagnosis display systems used in various domestic hospitals are divided into two major categories, one category is a gray scale display system, and the other category is a color display system; the gray scale display system displays through a single gray scale screen, the technical requirements of gray scale display are realized through a driving main board, the color display system displays through a single color screen, and the technical requirements of color display are realized through a driving main board; the cost of gray-scale screens of the same size on the market is often twice or more than that of color screens; the gray-scale display screen has the effects of more pigment points and high brightness, is particularly clear when observing X-ray films, and is convenient for doctors to find out pathological change parts; for a color display screen, the gray scale display effect is displayed on the color display screen in the prior art without a corresponding technical scheme, and the color display screen has fewer pigment points, which is the root of the technology that cannot be solved; therefore, the technical scheme for displaying gray scales cannot be realized at present by the color display screen.
Therefore, there is a need for a driving system for implementing gray scale display on a color display.
Disclosure of Invention
The invention mainly aims to provide a driving system for converting a color display into gray scale display, which can realize the technical effect of displaying gray scale display on the existing color display screen.
In order to solve the technical problems, the driving system for converting the color display into gray scale display comprises a digital-to-analog conversion differential module, a gray scale conversion module and a core decoding module, wherein the digital-to-analog conversion differential module and the gray scale conversion module are both connected with the core decoding module, the digital-to-analog conversion differential module converts an input signal into a differential signal, and the gray scale conversion module converts the differential signal into a first gray scale display signal and inputs the first gray scale display signal to the core decoding module.
Preferably, the digital-to-analog conversion differential module comprises a first filter circuit, a first signal amplifying circuit, a first decoding circuit, a first converting circuit and a second filter circuit, wherein the output end of the first filter circuit is connected with the first signal amplifying circuit, the output end of the first signal amplifying circuit is connected with the first decoding circuit, the output end of the first decoding circuit is connected with the first converting circuit, and the output end of the first converting circuit is connected with the second filter circuit.
Preferably, the gray scale conversion module comprises a third filter circuit, a second decoding circuit and a second conversion circuit, wherein the output end of the third filter circuit is connected with the second decoding circuit, and the output end of the second decoding circuit is connected with the second conversion circuit.
Preferably, the device further comprises a gray scale compensation module, wherein the gray scale compensation module is connected with the core decoding module, and outputs a second gray scale display signal to the core decoding module after performing voltage compensation on the first gray scale display signal by the gray scale compensation module.
Preferably, the core decoding module is connected with a color display screen.
Preferably, the key system is connected with the core decoding module.
Preferably, the gray scale compensation module comprises a fourth filter circuit, a third amplifying circuit, a third decoding circuit and a compensation circuit, wherein the output end of the fourth filter circuit is connected with the third amplifying circuit, the output end of the third amplifying circuit is connected with the third decoding circuit, and the output end of the third decoding circuit is connected with the compensation circuit.
The beneficial effects of the invention are as follows: through the arrangement of the digital-to-analog conversion difference module, the gray scale conversion module and the core decoding module in the technical scheme, the effect that the picture displayed on the color display screen has gray scale display is realized; namely, the color display screen can be used as a gray-scale display screen; the cost is reduced.
Drawings
FIG. 1 is a schematic block diagram of a driving system for converting a color display to gray scale display according to the present invention;
FIG. 2 is a schematic block diagram of a digital-to-analog conversion differential module of a driving system for converting a color display to a gray scale display according to the present invention;
FIG. 3 is a schematic block diagram of a gray scale conversion module of a driving system for converting a color display to gray scale display according to the present invention;
FIG. 4 is a schematic block diagram of a gray scale compensation module of a driving system for converting a color display to a gray scale display according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The reference numerals in fig. 1 to 4 are: a digital-to-analog conversion difference module 1; a gray level conversion module 2; a core decoding module 4; a gray level conversion module 3; a first filter circuit 11; a first signal amplifying circuit 12; a first decoding circuit 13; a first conversion circuit 14; a second filter circuit 15; a third filter circuit 21; a second decoding circuit 22; a second conversion circuit 23; a fourth filter circuit 31; a third amplification circuit 32; a third decoding circuit 33; a compensation circuit 34.
As shown in fig. 1 to 4, a driving system for converting a color display into a gray scale comprises a digital-to-analog conversion differential module 1, a gray scale conversion module 2 and a core decoding module 4, wherein the digital-to-analog conversion differential module 1 and the gray scale conversion module 2 are both connected with the core decoding module 4, the digital-to-analog conversion differential module 1 converts an input signal into a differential signal, and the gray scale conversion module 2 converts the differential signal into a first gray scale display signal and inputs the first gray scale display signal to the core decoding module 4; in this embodiment, the input signal includes AV (VIDEO signal), DVI (DVI is collectively referred to as Digital Visual Interface, analog and digital signals) or Y/C (super VIDEO signal, i.e., an enhanced version of VIDEO signal); the input signals are firstly converted into differential signals through a digital-to-analog conversion differential module, the differential signals comprise YBBPR differential signals (YBBPR is also called a color difference component interface, the standard EIA-770.2a of the American electronic industry Association is adopted, YBBPR is the identification of an analog system), after the conversion into YBBPR differential signals, the conversion into first gray-scale display signals are carried out through a gray-scale conversion module, the first gray-scale display signals comprise gray-scale LVDS display signals, and then the gray-scale LVDS display signals are transmitted to a core decoding module for being displayed by a color display screen connected with the core decoding module, so that the effect of gray-scale display of pictures displayed on the color display screen is realized. The color display screen specifically refers to a color liquid crystal display screen in the prior art, and an internal driving system of the color display screen is multi-color driving, wherein the multi-color driving drives the resolution of 4K, namely 3840×2160, which is equal to 2160P; a display screen without gray scale display driving.
The application also comprises a drive system method for converting the color display into gray scale display, which comprises the following steps:
s1, when an input signal is input to a digital-to-analog conversion differential module, the digital-to-analog conversion differential module converts the input signal into a differential signal;
s2, when the differential signals are transmitted to a gray scale module, the gray scale module converts the differential signals into first gray scale display signals; and input into the core decoding module to
S3, the first gray scale display signal is transmitted to a core decoding module for displaying with a color display screen of the core decoding module.
The beneficial effects of the invention are as follows: through the arrangement of the digital-to-analog conversion difference module, the gray scale conversion module and the core decoding module in the technical scheme, the effect that the picture displayed on the color display screen has gray scale display is realized; namely, the color display screen can be used as a gray-scale display screen; the cost is reduced.
As shown in fig. 2, the digital-to-analog conversion differential module preferably includes a first filter circuit 11, a first signal amplifying circuit 12, a first decoding circuit 13, a first converting circuit 14 and a second filter circuit 15, wherein an output end of the first filter circuit 11 is connected with the first signal amplifying circuit 12, an output end of the first signal amplifying circuit 12 is connected with the first decoding circuit 13, an output end of the first decoding circuit 13 is connected with the first converting circuit 14, and an output end of the first converting circuit 14 is connected with the second filter circuit 15; the preferred embodiment performs structural limitation on the digital-to-analog conversion differential module, so that the digital-to-analog conversion differential module can convert an input signal into a differential signal, and specifically includes: the first filter circuit filters clutter of input signals, amplifies a signal source through the first amplifying circuit, conveys the filtered and amplified signal source to the first decoding circuit to be decoded into a distortion-free signal source, and filters the distortion-free signal source through the second filter circuit to form YBBPR differential signals; i.e. the differential signal processing is finally completed. The undistorted signal source refers to a signal source subjected to secondary filtering to represent a signal source with a distortion rate of less than 5%.
As shown in fig. 3, the gray scale conversion module preferably includes a third filter circuit 21, a second decoding circuit 22 and a second conversion circuit 23, wherein an output end of the third filter circuit 21 is connected with the second decoding circuit 22, and an output end of the second decoding circuit 22 is connected with the second conversion circuit 23; the preferred embodiment defines the structure of the gray scale conversion module to convert the differential signal into a first gray scale display signal; specifically, the third filter circuit performs low-pass filtering on the differential signal, and then decodes the differential signal into a low-frequency differential signal through the second decoding circuit; and finally, converting the low-frequency differential signal into a first gray scale display signal through a second conversion circuit. In practice, the gray scale conversion module has the advantages that the differential signal is subjected to low-frequency processing based on a low-pass filtering mode, and finally a first gray scale display signal lower than a preset frequency is generated and is transmitted to the core decoding module for display by a color display screen connected with the core decoding module; wherein the preset frequency is 20hz, and hz is the frequency.
As shown in fig. 1, the device preferably further includes a gray-scale compensation module 3, the gray-scale compensation module 3 is connected with the core decoding module 4, and the gray-scale compensation module 3 outputs a second gray-scale display signal to the core decoding module 4 after performing voltage compensation on the first gray-scale display signal; as shown in fig. 4, the gray-scale compensation module includes a fourth filter circuit 31, a third amplifying circuit 32, a third decoding circuit 33 and a compensation circuit 34, wherein an output end of the fourth filter circuit 31 is connected with the third amplifying circuit 32, an output end of the third amplifying circuit 32 is connected with the third decoding circuit 33, and an output end of the third decoding circuit 33 is connected with the compensation circuit 34; in this embodiment, the gray scale compensation module is configured to perform signal processing on the input IPS signal, TN signal and the first gray scale display signal LVDS1 through the fourth filter circuit 31, the third amplifier circuit 32, the third decoder circuit 33 and the compensation circuit 34 to output the second gray scale display signal LVDS2; wherein, the IPS signal refers to the IPS screen color gradation value, and the TN signal refers to the TN screen color gradation value; and the first gray-scale display signal is subjected to voltage compensation processing to reduce the chromatic aberration of each pixel point of the color display screen, so that the outline of each image can be clearly seen after the gray-scale image displayed by the color display screen is amplified.
The invention is a multi-channel full signal interface, the picture-in-picture can be a digital signal and an analog signal which are displayed separately, or the digital signal and the analog signal can mutually display the picture-in-picture, when the display picture is a digital signal, the picture-in-picture is an analog signal, or the display picture is an analog signal, the picture-in-picture is a digital signal, and the two can be freely switched, so that a user can conveniently and freely switch according to the requirement.
As shown in fig. 1 to 4, the key system is connected to the core decoding module 4.
The key system of the present invention, as shown in FIG. 1, KEY SYSTEM; when a user; for example, when a doctor needs to watch a detail part in an image on a display screen, after receiving a key operation of a user, the key system triggers a digital-to-analog conversion difference module and a gray scale conversion module connected with a core decoding module to work so as to complete a process of converting color display into gray scale display. The key system for realizing color gray scale display through one key is convenient to operate and simple in steps for operators, and is particularly suitable for busy operation or emergency.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (5)
1. The driving system for converting the color display into gray scale display is characterized by comprising a digital-to-analog conversion differential module, a gray scale conversion module and a core decoding module, wherein the digital-to-analog conversion differential module and the gray scale conversion module are both connected with the core decoding module, the digital-to-analog conversion differential module converts an input signal into a differential signal, the gray scale conversion module converts the differential signal into a first gray scale display signal and inputs the first gray scale display signal into the core decoding module, the core decoding module is connected with a color display screen, and the core decoding module is connected with a key system.
2. The driving system for converting a color display to a grayscale display according to claim 1, wherein the digital-to-analog conversion differential module comprises a first filter circuit, a first signal amplifying circuit, a first decoding circuit, a first converting circuit and a second filter circuit, wherein an output end of the first filter circuit is connected with the first signal amplifying circuit, an output end of the first signal amplifying circuit is connected with the first decoding circuit, an output end of the first decoding circuit is connected with the first converting circuit, and an output end of the first converting circuit is connected with the second filter circuit.
3. The driving system for converting a color display to a gray scale according to claim 1, wherein the gray scale conversion module comprises a third filter circuit, a second decoding circuit and a second conversion circuit, wherein an output end of the third filter circuit is connected with the second decoding circuit, and an output end of the second decoding circuit is connected with the second conversion circuit.
4. The system of claim 1, further comprising a gray scale compensation module, wherein the gray scale compensation module is coupled to the core decoding module, and wherein the gray scale compensation module voltage compensates the first gray scale display signal and outputs a second gray scale display signal to the core decoding module.
5. The driving system for converting a color display to a gray scale display according to claim 4, wherein the gray scale compensation module comprises a fourth filter circuit, a third amplifying circuit, a third decoding circuit and a compensation circuit, wherein an output end of the fourth filter circuit is connected with the third amplifying circuit, an output end of the third amplifying circuit is connected with the third decoding circuit, and an output end of the third decoding circuit is connected with the compensation circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711376551.8A CN107993623B (en) | 2017-12-19 | 2017-12-19 | Driving system for converting color display into gray scale display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711376551.8A CN107993623B (en) | 2017-12-19 | 2017-12-19 | Driving system for converting color display into gray scale display |
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| CN107993623A CN107993623A (en) | 2018-05-04 |
| CN107993623B true CN107993623B (en) | 2024-04-26 |
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| CN108600722A (en) * | 2018-06-21 | 2018-09-28 | 深圳市嘉利达专显科技有限公司 | A kind of gamut correction apparatus and method for color management display |
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| KR20040028573A (en) * | 2002-09-30 | 2004-04-03 | 가부시끼가이샤 도시바 | Display device and driving method therefor |
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