CN112198703B - Display panel and target color judgment method - Google Patents
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- CN112198703B CN112198703B CN202011112896.4A CN202011112896A CN112198703B CN 112198703 B CN112198703 B CN 112198703B CN 202011112896 A CN202011112896 A CN 202011112896A CN 112198703 B CN112198703 B CN 112198703B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
Abstract
The invention discloses a display panel and a target color judgment method, wherein the display panel comprises a color film substrate and a color filter substrate, wherein the color film substrate is provided with a plurality of color resistance units; the color identification circuit layer comprises a plurality of color identification circuit units, and each color identification circuit unit corresponds to a color resistance unit; and the output end of each color identification circuit unit is connected to the input end of the IC circuit. The invention has the technical effects that the display device has color perception capability and realizes the judgment of the color of the target object.
Description
Technical Field
The present invention relates to the field of display, and in particular, to a display panel and a method for determining a color of a target object.
Background
With the popularization of 5G technology, the concepts of man-machine interconnection and everything interconnection are gradually being realized. The mobile broadband enables the mobile phone to play an increasingly important role in daily life of people, and the mobile phone also becomes the most important window of human-computer interaction in the 5G era.
Therefore, the mobile phone is required to have more additional functions, become more humanized and smarter, and then the integration of multiple sensors becomes an important direction for future research and design.
The color sensor is mature in the market, and the precise color sensor is widely applied to the fields of coating, spinning, medical treatment, printing and the like.
As shown in fig. 1, the color sensor generally performs design sampling using an RGB filter 100 and a photodiode 200, amplifies the received signal by an amplifier 300, and performs analog-to-digital conversion and data comparison to realize color recognition.
Disclosure of Invention
The invention aims to solve the technical problems of high requirement on humanization and poor human-computer interaction performance of the conventional display device.
To achieve the above object, the present invention provides a display panel including: the color film substrate is provided with a plurality of color resistance units and is provided with an incident side and an emergent side; the color identification circuit layer is arranged on the light emitting side of the color film substrate and comprises a plurality of color identification circuit units, and each color identification circuit unit corresponds to a color resistor unit; the target light forms monochromatic light after passing through the color resistance unit, and each color identification circuit unit is used for acquiring an optical signal of the corresponding monochromatic light and converting the optical signal into an electric signal; and the output end of each color identification circuit unit is connected to the input end of the IC circuit, and the IC circuit is used for processing the electric signals and calculating the corresponding color values according to the electric signals.
Furthermore, the color resistance unit in the color film substrate is one of three primary color resistance; the color resistance units of the same color correspond to one color identification circuit unit in the color identification circuit layer; adding current signals in the electric signals of the monochromatic light of each color to obtain three pieces of added current data, and marking the three pieces of added current data as a group; acquiring three summed current data for multiple times to obtain multiple groups of current data; denoising and averaging the multiple groups of current data to obtain a group of average current data; converting the set of average current data into a set of color data; comparing the group of color data with the data prestored in the color database to obtain a color value.
Further, the color identification circuit unit comprises a photodiode, a storage capacitor, a thin film transistor, a gate circuit and an output circuit; the grid electrode of the first thin film transistor is connected to the photodiode, the source electrode of the first thin film transistor is connected to a power supply signal, and the drain electrode of the first thin film transistor is connected to the second thin film transistor; the grid electrode of the second thin film transistor is connected to the grid electrode circuit, and the drain electrode of the second thin film transistor is connected to the output circuit; the grid electrode of the third thin film transistor is connected with a reset signal, the source electrode of the third thin film transistor is connected with a power supply signal, and the drain electrode of the third thin film transistor is connected to the grid electrode of the first thin film transistor; one end of the storage capacitor is connected with a power supply signal, and the other end of the storage capacitor is connected to the grid electrode of the first thin film transistor.
Further, the color identification circuit unit comprises a photodiode, a storage capacitor, a thin film transistor, a gate circuit and an output circuit; the grid electrode of the thin film transistor is connected with the grid electrode circuit, the drain electrode of the thin film transistor is connected with the output circuit, and the source electrode of the thin film transistor is connected with the photodiode; one end of the storage capacitor is connected to the source electrode of the thin film transistor, and the other end of the storage capacitor is connected to a power supply signal.
Further, the display panel further includes: the array substrate is arranged on the surface of one side, away from the color film substrate, of the color identification circuit layer; the IC circuit is arranged on the array substrate; the IC circuit includes: the device comprises a power supply module, a timer module, an oscillation module and a data processing module, wherein the power supply module, the timer module and the oscillation module are all connected to the data processing module.
In order to achieve the above object, the present invention further provides a method for determining a color of a target object, comprising the following steps: providing a display panel as described hereinbefore; acquiring target light of a target object; decomposing the target light into monochromatic light; performing photoelectric conversion on each monochromatic light, and converting the monochromatic light from an optical signal into an electrical signal; and processing the electric signal, and calculating a corresponding color value according to the electric signal.
Further, in the step of decomposing the target light into monochromatic light, the target light is decomposed into monochromatic light of three primary colors; in the step of processing the electrical signal, the method comprises the steps of: adding current signals in the electric signals of the monochromatic light of each color to obtain three pieces of added current data, and marking the three pieces of added current data as a group; acquiring three summed current data for multiple times to obtain multiple groups of current data; denoising and averaging the multiple groups of current data to obtain a group of average current data; converting the set of average current data into a set of color data; comparing the group of color data with the data prestored in the color database to obtain a color value.
Further, in the step of comparing the set of color data with pre-stored data in a color database, a data tolerance is set, when the difference value between each data in the set of color data and the corresponding data in the color database is within the data tolerance, the corresponding data in the color database is selected, at least one set of color selection data is formed, and the corresponding color value is selected according to the color selection data.
Further, the smaller the data tolerance, the smaller the deviation of the selected color value from the actual color value of the target.
Further, after the step of processing the electrical signal, the method for determining the color of the target further includes: and performing color transformation on the display panel according to the color values to transform the color into the color of the target object.
The display panel has the technical effects that light is decomposed into monochromatic light after passing through the color resistance unit of the color film substrate, the optical signal of the monochromatic light is converted into an electric signal after passing through the color identification circuit unit, the color value of the electric signal is calculated, the color of the target light is further judged, and the display panel has color perception capability, so that the design of the display panel is more humanized, the functionality of the display panel is enriched, the man-machine interaction is gradually realized, and a foundation is provided for subsequent research and development.
Drawings
FIG. 1 is a schematic diagram of the operation of a prior art color sensor;
FIG. 2 is a schematic diagram of a display panel according to an embodiment of the invention;
fig. 3 is a schematic diagram of a color film substrate and the color identification circuit layer according to an embodiment of the present invention;
FIG. 4 is a circuit diagram of a color identification circuit according to an embodiment of the present invention;
FIG. 5 is another circuit diagram of the color identification circuit unit according to the embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an integration of a color identification circuit unit and an IC circuit according to an embodiment of the present invention;
FIG. 7 is a schematic view of a display device according to an embodiment of the present invention;
fig. 8 is a flowchart of a method for determining a color of an object according to an embodiment of the present invention.
Some of the components are identified as follows:
100. an RGB color filter; 200. a photodiode; 300. an amplifier;
1. a color film substrate; 2. a color recognition circuit layer; 3. an array substrate;
11. a first color resistance unit; 12. a second color resistance unit; 13. a third color resistance unit;
21. a color recognition circuit unit; 211. a photodiode;
201. a gate circuit; 202. an output circuit;
300. an IC circuit; 310. a rectification feedback module; 320 a data processing module; 330. an analog-to-digital conversion module; 340. a power supply module; 350. an oscillation module; 360. a timer module; 370. a color database;
10. a first display panel; 20. and a second display panel.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Specifically, referring to fig. 1 to 7, an embodiment of the invention provides a display panel, which includes a color film substrate 1, a color identification circuit layer 2, and an array substrate 3.
The color film substrate 1 plays a role of color filtering, and is used as a main component for realizing color display in the display device. The color filter substrate 1 has a plurality of color resistance units, and in this embodiment, has a first color resistance unit 11(R), a second color resistance unit 12(G), and a third color resistance unit 13(B), which form a set of RGB color resistance units. The color film substrate 1 is provided with an incident light side and an emergent light side which are arranged oppositely, target light enters from the incident light side of the color film substrate 1, the target light is decomposed into R, G, B monochromatic light by the color resistance unit, and the monochromatic light is emitted from the emergent light side.
The color identification circuit layer 2 is disposed on the light emitting side of the color filter substrate 1, and in this embodiment, is disposed on the lower surface of the color filter substrate 1, and the color identification circuit layer 2 includes a plurality of color identification circuit units 21, and each color identification circuit unit 21 corresponds to each color resistor unit on the color filter substrate 1 one to one (see fig. 3).
The color recognition circuit unit 21 includes a photodiode 211(photodiode), a storage capacitor (C), a Thin Film Transistor (TFT), a gate circuit (Gn), and an output circuit (ready).
The photodiode 211 is used for converting optical energy into electric energy, the storage capacitor is used for storing and accumulating current generated when the photodiode 211 is exposed, the thin film transistor is used for controlling zero clearing of the storage capacitor before exposure and reading of data after exposure, the grid circuit is connected to a time sequence control scanning circuit outside a display area of the display panel, the output circuit is connected to an AFE circuit unit outside the display area of the display panel and used for integrating, filtering and the like of electric signals, and the AFE circuit is an abbreviation of Active Front End and is named as a rectification feedback unit.
As shown in fig. 4, in the present embodiment, in the color identification circuit unit 21, the gate of the first thin film transistor is connected to the photodiode, the source is connected to the power supply signal (VDD), and the drain is connected to the second thin film transistor; the grid electrode of the second thin film transistor is connected to the grid electrode circuit, and the drain electrode of the second thin film transistor is connected to the output circuit; the grid electrode of the third thin film transistor is connected with a reset signal (Rst), the source electrode of the third thin film transistor is connected with a power supply signal (Vint/VDD), and the drain electrode of the third thin film transistor is connected with the grid electrode of the first thin film transistor; one end of the storage capacitor is connected to a power supply signal, and the other end of the storage capacitor is connected to the grid electrode of the first thin film transistor.
As shown in fig. 5, in another embodiment, in the color identification circuit unit 21, the gate of the thin film transistor is connected to the gate circuit, the drain is connected to the output circuit, and the source is connected to the photodiode; one end of the storage capacitor is connected to the source electrode of the thin film transistor, and the other end of the storage capacitor is connected to a power supply signal (Vbias).
The array substrate 3 is arranged on the surface of one side, away from the color film substrate 1, of the color identification circuit layer 2, the array substrate 3 is arranged opposite to the color film substrate 1, and the array substrate 3 plays a key role in controlling a circuit switch of the whole display panel.
As shown in fig. 6, in order to keep the width of the left and right frames of the glass from increasing, the gate circuit of the color identification circuit unit 21 and the GIP of the IC circuit 300 can be designed in common, which requires the color detection function to be performed when the liquid crystal display panel is in a black frame state. The integration of the IC circuit 300 with the color identification circuit unit 21 facilitates timing control and picture switching.
The IC circuit 300 is disposed on the array substrate 3, the IC circuit 300 includes a rectification feedback module 310(AFE), an analog-to-digital conversion module 330(ADC), a data processing module 320(data processing), a power module 340(DC/DC), a timer module 360(timing control), an oscillation module 350(OSC), a color database 370, and the like, and the rectification feedback module 310, the analog-to-digital conversion module 330, the power module 340, the timer module 360, the oscillation module 350, the color database 370, and the like are all connected to the data processing module 320. Wherein the power module 340, the timer module 360, the oscillation module 350 and the color recognition circuit unit 21 are commonly disposed.
As shown in fig. 3, assuming that the color identification circuit unit is a 200 row by 300 column matrix module, the 200 row gate circuits 201 are turned on one by one, and the 300 column output circuits 202 collect the photo-generated currents row by row, the IC circuit sums the currents output by all the circuits No. 1, sums the currents output by all the circuits No. 2, and sums the currents of the same circuits No. three. Three data are obtained by scanning each frame, the data are a group of numerical values, a plurality of groups of numerical values are obtained by scanning a plurality of frames, and a group of more accurate color values can be obtained by denoising, taking and averaging the numerical values. The set of color values is compared with the standard color values stored in the color database 370 of the IC circuit 300 in advance, so as to determine the color of the target object. When the color values in the color database 370 are richer and the set tolerance value is smaller, the determined color is closer to the true color of the target object.
Although the aperture ratio of the display device is decreased after adding one color identification circuit layer 2, the effect on the aperture ratio is decreased with the increasing semiconductor process.
The display panel has the technical effects that a color identification circuit layer is additionally arranged between a color film substrate and an array substrate, optical signals of target light rays incident from the light incident side of the color film substrate are changed into electric signals, the color values of the electric signals are calculated, and then the color of the target light rays is judged, so that the display panel is more humanized in design, the functionality of the display panel is enriched, man-machine interaction is gradually realized, and a foundation is provided for subsequent research and development.
In the display device with the display panel, the circuit architecture and the working principle of the added color identification circuit layer 2 are very similar to those of the optical fingerprint identification sensing circuit in the screen, and the subsequent development design can be considered to be compatible, so that the function maximization cost optimization is realized by sharing the sensing layer, and the market competitiveness can also be greatly improved.
The screen with the color recognition function enables the display device to have color perception capability, and can read the color of an object, thereby realizing more man-machine interaction applications. Take a simple example (see fig. 7): the display device comprises a first display panel 10 and a second display panel 20, wherein the first display panel 10 is the display panel and can display normally, the clothes color of a user can be read, the second display panel 20 can change the color of the display device to be consistent with the clothes color according to the change, and the display device also becomes a part of a user in a unified way, and the display device can be a display device such as a mobile phone, a tablet computer, a notebook computer and the like.
With the continuous maturity of the photodiode manufacturing process and the continuous optimization of the data processing algorithm, the color identification precision can be continuously improved, the primary color identifier is upgraded to a high-precision identifier, and the display screen with the design can be applied to more scenes and can be in an unlimited period in the future.
As shown in fig. 8, the present embodiment further provides a method for determining a color of a target object, which includes steps S1-S5.
S1 provides a display panel as described earlier.
S2 obtains a target light of the target object to be recognized.
S3 the color resistance unit in the color filter substrate 1 in the display panel decomposes the target light into monochromatic light, and decomposes the target light into monochromatic light of three primary colors.
S4 performs photoelectric conversion on each monochromatic light, converting the monochromatic light from an optical signal to an electrical signal. Specifically, the monochromatic light passes through the color recognition circuit layer 2 in the display panel, and is converted from an optical signal into an electrical signal and then output. The monochromatic light enters the color identification circuit layer 2 after being emitted from the light emitting side of the color film substrate 1, and each color identification circuit unit 21 in the color identification circuit layer 2 is used for acquiring an optical signal of the monochromatic light emitted by the corresponding color resistance unit and converting the optical signal into an electrical signal.
The color identification circuit layer 2 includes a plurality of color identification circuit units 21, and each color identification circuit unit 21 corresponds to each color resistor unit on the color filter substrate 1 one by one (see fig. 3).
The color recognition circuit unit 21 includes a photodiode 211(photodiode), a storage capacitor (C), a Thin Film Transistor (TFT), a gate circuit (Gn), and an output circuit (ready).
The photodiode 211 is used for converting optical energy into electric energy, the storage capacitor is used for storing and accumulating current generated when the photodiode 211 is exposed, the thin film transistor is used for controlling zero clearing of the storage capacitor before exposure and reading of data after exposure, the grid circuit is connected to a time sequence control scanning circuit outside a display area of the display panel, the output circuit is connected to an AFE circuit unit outside the display area of the display panel and used for integrating, filtering and the like of electric signals, and the AFE circuit is an abbreviation of Active Front End and is named as a rectification feedback unit.
As shown in fig. 4, in the present embodiment, in the color identification circuit unit 21, the gate of the first thin film transistor is connected to the photodiode, the source is connected to the power supply signal (VDD), and the drain is connected to the second thin film transistor; the grid electrode of the second thin film transistor is connected to the grid electrode circuit, and the drain electrode of the second thin film transistor is connected to the output circuit; the grid electrode of the third thin film transistor is connected with a reset signal (Rst), the source electrode of the third thin film transistor is connected with a power supply signal (Vint/VDD), and the drain electrode of the third thin film transistor is connected with the grid electrode of the first thin film transistor; one end of the storage capacitor is connected with a power supply signal, and the other end of the storage capacitor is connected to the grid electrode of the first thin film transistor.
As shown in fig. 5, in another embodiment, in the color identification circuit unit 21, the gate of the thin film transistor is connected to the gate circuit, the drain is connected to the output circuit, and the source is connected to the photodiode; one end of the storage capacitor is connected to the source electrode of the thin film transistor, and the other end of the storage capacitor is connected to a power supply signal (Vbias).
S5 processes the electrical signal and calculates a corresponding color value from the electrical signal.
Specifically, current signals in the electrical signals of monochromatic light of each color are summed to obtain three summed current data, which are marked as a group; acquiring three summed current data for multiple times to obtain multiple groups of current data; denoising and averaging the multiple groups of current data to obtain a group of average current data; converting the set of average current data into a set of color data; comparing the set of color data with the pre-stored data in the color database 370, setting a data tolerance, when the difference between each data in the set of color data and the corresponding data in the color database 370 is within the data tolerance, selecting the corresponding data in the color database 370, forming at least one set of color selection data, and selecting the corresponding color value according to the color selection data. Wherein the smaller the data tolerance, the smaller the deviation of the selected color value from the actual color value of the target object.
For example, as shown in fig. 3, assuming that the color identification circuit unit is a 200-row by 300-column matrix module, the 200-row gate circuits 201 are turned on one by one, and the 300-column output circuits 202 collect the photo-generated currents row by row, the IC circuit sums the currents output by all the circuits No. 1, sums the currents output by all the circuits No. 2, and sums the currents by the same three. Three data are obtained by scanning each frame, the data are a group of numerical values, a plurality of groups of numerical values are obtained by scanning a plurality of frames, and a group of more accurate color values can be obtained by denoising, taking and averaging the numerical values.
When the color values in the color database 370 are richer and the set data tolerance value is smaller, the determined color is closer to the true color.
The following steps can be carried out subsequently: and performing color transformation on the display panel according to the color values to transform the display panel into the color of the target object. Specifically, the screen with the color recognition function enables the display device to have color perception capability, and can read object colors, so that more man-machine interaction applications are realized. Take a simple example (see fig. 7): the display device comprises a first display panel 10 and a second display panel 20, wherein the first display panel 10 is the display panel and can display normally, the clothes color of a user can be read, the second display panel 20 can change the color of the display device to be consistent with the clothes color according to the change, and the display device also becomes a part of a user in a unified way, and the display device can be a display device such as a mobile phone, a tablet computer, a notebook computer and the like.
The technical effect of the method for judging the color of the target object in the embodiment is that light is decomposed into monochromatic light after passing through the color resistance unit of the color film substrate, the optical signal of the monochromatic light is changed into an electric signal after passing through the color identification circuit unit, the color value of the electric signal is calculated, and then the color of the target light is judged, so that the design of the display panel is more humanized, the functionality of the display panel is enriched, the man-machine interaction is gradually realized, and a foundation is provided for subsequent research and development.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The display panel and the target color determination method provided by the embodiment of the invention are described in detail above, a specific example is applied in the description to explain the principle and the implementation of the invention, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A display panel, comprising:
the color film substrate is provided with a plurality of color resistance units and is provided with an incident side and an emergent side;
the color identification circuit layer is arranged on the light emitting side of the color film substrate and comprises a plurality of color identification circuit units, and each color identification circuit unit corresponds to a color resistor unit; the target light forms monochromatic light after passing through the color resistance unit, and each color identification circuit unit is used for acquiring an optical signal of the corresponding monochromatic light and converting the optical signal into an electric signal; and
the output end of each color identification circuit unit is connected to the input end of the IC circuit, and the IC circuit is used for processing the electric signals and calculating the corresponding color values according to the electric signals;
the color resistance unit in the color film substrate is one of three primary color resistance;
the color resistance units of the same color correspond to one color identification circuit unit in the color identification circuit layer;
adding current signals in the electric signals of the monochromatic light of each color to obtain three pieces of added current data, and marking the three pieces of added current data as a group; acquiring three summed current data for multiple times to obtain multiple groups of current data; denoising and averaging the multiple groups of current data to obtain a group of average current data; converting the set of average current data into a set of color data; comparing the group of color data with the data prestored in the color database to obtain a color value.
2. The display panel according to claim 1, wherein the color recognition circuit unit includes a photodiode, a storage capacitor, a thin film transistor, a gate circuit, and an output circuit;
the grid electrode of the first thin film transistor is connected to the photodiode, the source electrode of the first thin film transistor is connected to a power supply signal, and the drain electrode of the first thin film transistor is connected to the second thin film transistor;
the grid electrode of the second thin film transistor is connected to the grid electrode circuit, and the drain electrode of the second thin film transistor is connected to the output circuit;
the grid electrode of the third thin film transistor is connected with a reset signal, the source electrode of the third thin film transistor is connected with a power supply signal, and the drain electrode of the third thin film transistor is connected to the grid electrode of the first thin film transistor;
one end of the storage capacitor is connected with a power supply signal, and the other end of the storage capacitor is connected to the grid electrode of the first thin film transistor.
3. The display panel according to claim 1, wherein the color recognition circuit unit includes a photodiode, a storage capacitor, a thin film transistor, a gate circuit, and an output circuit;
the grid electrode of the thin film transistor is connected with the grid electrode circuit, the drain electrode of the thin film transistor is connected with the output circuit, and the source electrode of the thin film transistor is connected with the photodiode;
one end of the storage capacitor is connected to the source electrode of the thin film transistor, and the other end of the storage capacitor is connected to a power supply signal.
4. The display panel according to claim 1, further comprising:
the array substrate is arranged on the surface of one side, away from the color film substrate, of the color identification circuit layer; the IC circuit is arranged on the array substrate;
the IC circuit includes: the device comprises a power supply module, a timer module, an oscillation module and a data processing module, wherein the power supply module, the timer module and the oscillation module are all connected to the data processing module.
5. A method for judging the color of a target object is characterized by comprising the following steps:
providing a display panel according to any one of claims 1 to 4;
acquiring target light of a target object;
decomposing the target light into monochromatic light;
performing photoelectric conversion on each monochromatic light, and converting the monochromatic light from an optical signal into an electrical signal;
processing the electric signal, and calculating a corresponding color value according to the electric signal;
wherein, in the step of decomposing the target light into monochromatic light,
decomposing the target light into monochromatic light of three primary colors;
the step of processing the electrical signal comprises the steps of:
adding current signals in the electric signals of the monochromatic light of each color to obtain three pieces of added current data, and marking the three pieces of added current data as a group;
acquiring three summed current data for multiple times to obtain multiple groups of current data;
denoising and averaging the multiple groups of current data to obtain a group of average current data;
converting the set of average current data into a set of color data;
comparing the group of color data with the data prestored in the color database to obtain a color value.
6. The method for determining color of an object according to claim 5, wherein in the step of comparing the set of color data with pre-stored data in a color database,
setting data tolerance, when the difference value between each data in the group of color data and the corresponding data in the color database is within the data tolerance, selecting the corresponding data in the color database, forming at least one group of color selection data, and selecting the corresponding color value according to the color selection data.
7. The method of claim 6, wherein the smaller the data tolerance, the smaller the deviation of the selected color value from the actual color value of the object.
8. The method for determining a color of an object according to claim 5, further comprising, after the step of processing the electrical signal: and performing color transformation on the display panel according to the color values to transform the display panel into the color of the target object.
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