CN113314075A - Display screen, electronic equipment, display control method and control device - Google Patents
Display screen, electronic equipment, display control method and control device Download PDFInfo
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- CN113314075A CN113314075A CN202110554052.3A CN202110554052A CN113314075A CN 113314075 A CN113314075 A CN 113314075A CN 202110554052 A CN202110554052 A CN 202110554052A CN 113314075 A CN113314075 A CN 113314075A
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/13—Active-matrix OLED [AMOLED] displays comprising photosensors that control luminance
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
The application discloses a display screen, electronic equipment, a display control method and a control device, and belongs to the technical field of display devices. The display screen comprises a plurality of photosensitive units, a plurality of pixel units and a driving circuit, wherein the plurality of pixel units form a display layer, the photosensitive units correspond to the pixel units one to one, the pixel units are provided with mounting holes, and the photosensitive units are arranged in the mounting holes. The drive circuit is connected with the pixel units and the photosensitive units, the photosensitive units sense the illumination intensity of the environment where the pixel units corresponding to the photosensitive units are located, and the drive circuit adjusts the brightness of the pixel units corresponding to the photosensitive units according to the illumination intensity sensed by the photosensitive units. The scheme can solve the problem that the display screen in the related art can not adjust the local pixel gray scale of the display screen according to the difference of the local illumination intensity of the display area.
Description
Technical Field
The application belongs to the technical field of display devices, and particularly relates to a display screen, electronic equipment, a control method and a control device.
Background
According to the traditional screen, the illumination intensity of the external environment is monitored by arranging an infrared photosensitive sensor in the electronic equipment, the monitored information is fed back to a screen driving chip by the infrared photosensitive sensor, and the aim of adjusting the brightness is fulfilled by controlling the gray scale of the pixels of the screen by the screen driving chip.
An infrared light sensor in the existing electronic equipment detects the illumination intensity at a certain position and adjusts the gray scales of all pixels in a screen based on the illumination intensity at the position detected by the infrared light sensor. However, when the illumination intensities received by different display areas of the screen are different, the screen cannot adjust the local pixel gray scale according to the actual local illumination intensity, and thus the fidelity of the display content is reduced.
Disclosure of Invention
An object of the embodiments of the present application is to provide a display screen, an electronic device, a control method, and a control device, which can solve the problem in the related art that the display screen cannot adjust the local pixel gray scale of the display screen according to the difference of the local illumination intensity of the display area.
In order to solve the technical problem, the present application is implemented as follows:
a display screen comprises a plurality of photosensitive units, a plurality of pixel units and a driving circuit, wherein a display layer is formed by the plurality of pixel units, the photosensitive units correspond to the pixel units one by one, each pixel unit is provided with a mounting hole, and the photosensitive units are arranged in the mounting holes;
the drive circuit is connected with the pixel units and the photosensitive units, the photosensitive units sense the illumination intensity of the environment where the pixel units corresponding to the photosensitive units are located, and the drive circuit adjusts the brightness of the pixel units corresponding to the photosensitive units according to the illumination intensity sensed by the photosensitive units.
Based on the display screen, the embodiment of the invention also discloses electronic equipment, which comprises the display screen.
Based on the display screen, the embodiment of the invention also discloses a display control method, which comprises the following steps:
the light sensing unit senses the illumination intensity;
the driving circuit receives the illumination intensity sensed by the photosensitive unit and controls the brightness of the pixel unit of the corresponding display area of the photosensitive unit according to the illumination intensity sensed by the photosensitive unit.
Based on the display control method, the embodiment of the invention also discloses a control device. The control device includes:
the receiving module is used for receiving the sensed illumination intensity of the photosensitive unit;
and the control module is connected with the receiving module and controls the brightness of the pixel unit of the corresponding display area of the photosensitive unit according to the illumination intensity received by the receiving module.
The technical scheme adopted by the invention can achieve the following beneficial effects:
in the display screen disclosed by the embodiment of the invention, the photosensitive unit is integrated in the pixel unit, so that the illumination intensity sensed by the photosensitive unit is the actual illumination intensity irradiated on the corresponding display area of the pixel unit. And the light sensation unit is integrated on the display layer, so that the light sensation unit can be prevented from occupying the space below the display screen. In addition, the photosensitive units correspond to the pixel units one by one, so that each photosensitive unit can accurately sense the illumination intensity of the environment where each pixel unit corresponds to the display area, and the accuracy of the sensing value of each photosensitive unit is improved. Moreover, the gray scales of the corresponding pixel units can be adjusted according to the induction values of the different photosensitive units, so that the display screen can adjust the local pixel gray scales according to the local illumination intensity under the condition that the illumination intensities of different display areas of the display screen are different, and the fidelity of a display picture of the display screen is improved.
Drawings
FIG. 1 is a schematic diagram of a distribution of pixel units and photosensitive units according to an embodiment of the disclosure;
FIG. 2 is a cross-sectional view of a portion of a display screen according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a display layer according to one embodiment of the disclosure;
FIG. 4 is a cross-sectional view of a display screen disclosed in one embodiment of the present invention;
FIG. 5 is a schematic diagram of a display screen applied to a first scene according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a display screen applied to a second application according to an embodiment of the present invention.
In the figure:
100-a light sensing unit;
110-a light absorbing layer; 120-a light-absorbing hole transport layer; 130-a light-absorbing electron-transporting layer;
200-pixel cells;
210-a light emitting unit; 220-a light-emitting electron transport layer; 230-a light emitting hole transport layer; 240-electron injection layer; 250-a hole injection layer; 200 a-a display layer;
400-a cathode layer;
300-an anode layer;
500-thin film encapsulation layer;
600-a touch layer;
700-a polarizing layer;
800-optical glue layer;
900-cover plate layer;
1000-base layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The display screen provided by the embodiment of the present application is described in detail with reference to fig. 1 to 6 through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 3, a display panel according to an embodiment of the present invention includes a plurality of light sensing units 100, a plurality of pixel units 200, and a driving circuit. The plurality of pixel units 200 form a display layer 200 a. The plurality of light sensing units 100 may be distributed in the display region of the display layer 200 a. The driving circuit is connected to the pixel unit 200 and the light sensing unit 100, the light sensing unit 100 senses the illumination intensity of the environment where the pixel unit 200 corresponding to the light sensing unit 100 is located, and the driving circuit adjusts the brightness of the pixel unit 200 corresponding to the light sensing unit 100 according to the illumination intensity sensed by the light sensing unit 100. The light sensing units 100 may correspond to the pixel units 200 one to one, so that the illumination intensity of the environment where each pixel unit 200 is located may be sensed by the light sensing units 100, and then the brightness of the corresponding pixel unit 200 may be adjusted by using the driving circuit according to the illumination intensity of the environment where each pixel unit 200 is located, thereby implementing brightness adjustment of the local display area of the display screen. Optionally, under the condition that the illumination intensity of the environment where the pixel unit 200 is located is low, the driving circuit may adjust the luminance of the pixel unit 200, so as to reduce the luminance of the pixel unit 200. Under the condition that the illumination intensity of the environment where the pixel unit 200 is located is high, the driving circuit can adjust the brightness of the pixel unit 200, so that the brightness of the pixel unit 200 is increased.
In the above embodiment, the light sensing units 100 are disposed on the display layer 200a, and the light sensing units 100 correspond to the pixel units 200 one by one, so that the light sensing units 100 can accurately sense the illumination intensity at the positions of the pixel units 200, thereby reducing the difference between the detected value and the actual value of the illumination intensity at the positions of the pixel units 200, and improving the sensing accuracy of the illumination intensity. Further be connected with sensitization unit 100 and pixel unit 200 respectively through drive circuit for drive circuit can be according to the luminance of the illumination intensity regulation corresponding pixel unit 200 that sensitization unit 100 responded to, and then can be according to the local difference of the illumination intensity of the environment of display screen place local pixel grey scale of display screen regulation, and then avoid the adjustment of display screen luminance to influence the fidelity of display screen display picture.
In the above embodiment, in the case that the display screen is partially shielded, the illumination intensity of the environment where the shielded portion of the display screen is located is lower than the illumination intensity of the environment where the unshielded portion of the display screen is located. And then the drive circuit can be based on the illumination intensity that photoreceptor unit 100 sensed with the regional pixel 200's that corresponds of the part that the display screen is sheltered from luminance of adjusting down, and then can reduce the consumption of display screen, reach the purpose of power saving. Referring to fig. 5, in a case where a user operates a display screen with a finger, the finger may block a local area of the display screen, thereby reducing the illumination intensity of an environment where the local area of the display screen is located. The driving circuit adjusts the brightness of the pixel unit 200 corresponding to the region, so that the brightness of the pixel unit 200 corresponding to the region is reduced, and the power consumption of the display screen can be further reduced. It should be noted that, since the user cannot observe the image displayed by the blocked region, the brightness of the pixel unit 200 corresponding to the blocked region is reduced, and the experience of the user on viewing the screen is not affected.
The pixel unit 200 may be provided with a mounting hole, and the light sensing unit 100 may be disposed in the mounting hole, so as to prevent the light sensing unit 100 from shielding the pixel unit 200, and ensure the display performance of the display screen. And the distance between the light sensing unit 100 and the corresponding pixel unit 200 can be reduced by arranging the light sensing unit 100 in the mounting hole, so that the difference of the illumination intensity of the environment where the light sensing unit 100 and the corresponding pixel unit 200 are located can be reduced, the illumination intensity sensed by the light sensing unit 100 is closer to the real value of the illumination intensity of the environment where the corresponding pixel unit 200 is located, the sensing precision of the illumination intensity is improved, and the brightness of each pixel unit 200 can be more accurately adjusted by the driving circuit.
In one embodiment, the pixel unit 200 may include a red pixel, a green pixel, and a blue pixel. The red, green, and blue pixels are all provided with mounting holes, and the photosensitive units 100 are all disposed in the mounting holes of the red, green, and blue pixels. The photosensitive units 100 are embedded in the mounting holes of the red pixels, the green pixels and the blue pixels, so that the photosensitive units 100 embedded in the display layer 200a can be prevented from influencing the density among the red pixels, the green pixels and the blue pixels, and the quality of a display picture of the display screen is further ensured.
Referring to fig. 3, the light sensing unit 100 may further include a light absorbing layer 110, a light absorbing hole transport layer 120, and a light absorbing electron transport layer 130, the light absorbing hole transport layer 120 and the light absorbing electron transport layer 130 being stacked on the light absorbing layer 110, the light absorbing layer 110 being positioned between the light absorbing hole transport layer 120 and the light absorbing electron transport layer 130, and the light absorbing hole transport layer 120 being connected to a cathode terminal of the driving circuit, and the light absorbing electron transport layer 130 being connected to an anode terminal of the driving circuit. The light absorbing hole transport layer 120 may be a hole transport material for a solar cell. The light-absorbing electron transporting layer 130 may be an electron transporting material for a solar cell.
Under the irradiation of light, a potential difference is formed between two ends of the photosensitive unit 100, and the greater the illumination intensity of the environment where the photosensitive unit 100 is located, the greater the potential difference between two ends of the photosensitive unit 100, that is, the greater the illumination intensity of the environment where the photosensitive unit 100 is located, the greater the voltage across two ends of the photosensitive unit 100. In the case where the intensity of light irradiation of the environment in which the light sensing unit 100 is located is reduced, the voltage across the light sensing unit 100 is reduced. In the case where the intensity of light irradiation of the environment in which the light sensing unit 100 is located is increased, the voltage across the light sensing unit 100 is increased. Therefore, the illumination intensity of the environment in which the light sensing unit 100 is located can be measured by the voltage variation across the light sensing unit 100. Specifically, the light sensing unit 100 may be connected to a driving circuit, so that the driving circuit may detect a voltage variation across the light sensing unit 100 and adjust the brightness of the corresponding pixel unit 200 according to the voltage variation across the light sensing unit 100. Optionally, the driving circuit includes a control module, so that the control module can analyze and process the voltage variation at two ends of the light sensing unit 100 and convert the voltage variation into an electrical signal for adjusting the brightness of the corresponding pixel unit 200, thereby achieving the purpose of adjusting the brightness of the corresponding pixel unit 200. Further, the control module may be a display driving chip.
The light absorbing layer 110 may be made of an organic-inorganic composite light absorbing material, for example, a photovoltaic material. Specifically, the light absorbing layer 110 may be made of a perovskite material. There are many kinds of organic-inorganic composite light absorbing materials, and for this reason, the present invention does not limit the specific kind of the light absorbing layer 110. Alternatively, the light absorbing layer 110 may be formed by evaporation or spin coating. Optionally, the light absorbing layer 110 may be manufactured by the same process as the light emitting unit 210, so as to reduce the manufacturing difficulty of the display screen.
In an alternative embodiment, the light sensing unit 100 may be a solar chip, so that the light sensing unit 100 can convert light energy into electrical energy, and then the driving circuit is used to adjust the brightness of the corresponding pixel unit 200 according to the voltage across the light sensing unit 100.
Referring to fig. 2 and 3, the pixel unit 200 may include a light emitting unit 210, a light emitting electron transport layer 220, a light emitting hole transport layer 230, an electron injection layer 240, and a hole injection layer 250, the light emitting electron transport layer 220 and the light emitting hole transport layer 230 being stacked on the light emitting unit 210, and the light emitting unit 210 being located between the light emitting electron transport layer 220 and the light emitting hole transport layer 230. The electron injection layer 240 is stacked on a side of the light-emitting electron transport layer 220 facing away from the light-emitting unit 210, and the electron injection layer 240 is connected to a cathode terminal of the driving circuit. The hole injection layer 250 is stacked on a side of the light emitting hole transport layer 230 facing away from the light emitting unit 210, and the hole injection layer 250 is connected to an anode terminal of the driving circuit. The cathode terminal of the driving circuit may inject electrons to the light emitting cell 210 through the electron injection layer 240 and the emission electron transport layer 220. The anode terminal of the driving circuit may inject holes into the light emitting unit 210 through the hole injection layer 250 and the light emitting hole transport layer 230, so that the light emitting unit 210 emits light to realize image display. The light emitting unit 210 may be made of an organic light emitting material. Holes generated at the anode terminal of the driving circuit and electrons generated at the cathode terminal of the driving circuit are injected into the hole transport layer and the electron transport layer, respectively, under the action of the electric field and migrate to the light emitting unit 210. When the holes and the electrons meet at the light emitting unit 210, energy excitons are generated, thereby emitting light.
Referring to fig. 2 and 3, the display screen may further include a cathode layer 400 and an anode layer 300. The cathode layer 400 and the anode layer 300 are stacked on the display layer 200a, and the display layer 200a is positioned between the cathode layer 400 and the anode layer 300. The driving circuit comprises a plurality of first cathode ends and a plurality of first anode ends, the first cathode ends are distributed on the cathode layer 400, the first anode ends are distributed on the anode layer 300, the first cathode ends and the first anode ends correspond to the pixel units 200 one by one, and the pixel units 200 and the first cathode ends and the first anode ends corresponding to the pixel units 200 are connected, so that the driving circuit can independently control the brightness of any pixel unit 200.
In an alternative embodiment, the light sensing unit 100 includes a first electrode terminal and a second electrode terminal, and the pixel unit 200 includes a third electrode terminal and a fourth electrode terminal. The first electrode terminal of the light sensing unit 100 and the fourth electrode terminal of the pixel unit 200 corresponding to the light sensing unit 100 are connected to the same first anode terminal. The second electrode terminal of the light sensing unit 100 and the third electrode terminal of the pixel unit 200 corresponding to the light sensing unit 100 are connected to the same first cathode terminal. The first electrode terminal of the photosensitive unit 100 may be an electrode terminal connected to the light-absorbing electron transport layer 130. The second electrode terminal of the photosensitive unit 100 may be an electrode terminal connected to the light-absorbing hole transport layer 120. The fourth electrode terminal of the pixel unit 200 may be an electrode terminal connected to the light emitting hole transport layer 230, and the third electrode terminal of the pixel unit 200 may be an electrode terminal connected to the light emitting electron transport layer 220. Further, the first electrode end of the light sensing unit 100 is a light-absorbing electron transport layer 130; the second electrode end of the light sensing unit 100 is a light absorbing hole transport layer 120. The fourth electrode terminal of the pixel unit 200 may be a hole injection layer 250; the third electrode terminal of the pixel unit 200 may be an electron injection layer 240.
Under the condition that the illumination intensity of the display area corresponding to the pixel unit 200 changes, the control module in the driving circuit can detect the voltage change at the two ends of the corresponding photosensitive unit 100, so that the coordinate of the pixel unit 200 corresponding to the photosensitive unit 100 can be accurately judged through the voltage change at the two ends of the photosensitive unit 100, the driving circuit can accurately position the position of the corresponding pixel unit 200, and the brightness of the corresponding pixel unit 200 can be adjusted. The voltage at the two ends of the light sensing unit 100 is positively correlated with the illumination intensity of the display area where the corresponding pixel unit 200 is located, that is, the greater the illumination intensity of the display area where the pixel unit 200 is located is, the greater the voltage at the two ends of the light sensing unit 100 corresponding thereto is, the smaller the illumination intensity of the display area where the pixel unit 200 is located is, and the smaller the voltage at the two ends of the light sensing unit 100 corresponding thereto is. Therefore, the driving circuit can precisely adjust the brightness of the corresponding pixel unit 200 according to the voltage magnitude at the two ends of the light sensing unit 100. Optionally, the driving circuit may further include an a/D converter to convert the sensed voltage variation into a digital signal through the a/D converter, so as to realize accurate adjustment of the brightness of each pixel unit 200. In addition, in the above embodiment, the first electrode terminal of the light sensing unit 100 and the fourth electrode terminal of the pixel unit 200 corresponding to the light sensing unit 100 are connected to the same first anode terminal, and the second electrode terminal of the light sensing unit 100 and the third electrode terminal of the pixel unit 200 corresponding to the light sensing unit 100 are connected to the same first cathode terminal, which can also reduce the manufacturing difficulty of the display screen.
In another embodiment, the light sensing unit 100 and the pixel unit 200 corresponding to the light sensing unit 100 may be connected to separate cathode terminals and/or anode terminals of the driving circuit, respectively. Optionally, the driving circuit further includes a plurality of second cathode terminals and a plurality of second anode terminals, the second cathode terminals are distributed on the cathode layer 400, the second anode terminals are distributed on the anode layer 300, the second cathode terminals and the second anode terminals may respectively correspond to the light sensing units 100 one to one, and the light sensing units 100 may be connected to the second cathode terminals and the second anode terminals corresponding to the light sensing units 100.
The display screen disclosed in the present application may be an OLED display screen. Referring to fig. 2, the display screen may further include a thin film encapsulation layer 500. The thin film encapsulation layer 500 is disposed to overlap the display layer 200 a. The thin film encapsulation layer 500 is a basic member of the OLED display, and will not be described in detail herein. Alternatively, the thin film encapsulation layer 500 may be stacked on one side of the anode layer 300, and may be stacked on one side of the cathode layer 400. The display screen may further include a touch layer 600 and a polarizing layer 700. The polarizing layer 700 may function as a polarizer, so that external light reflected by the cathode layer 400 or the anode layer 300 cannot pass through the polarizing layer 700, thereby improving the viewing effect. The display screen further includes an optical adhesive layer 800 and a cover plate layer 900, the optical adhesive layer 800 and the cover plate layer 900 may be stacked on the side of the polarizing layer 700 away from the thin film encapsulation layer 500, and the optical adhesive layer 800 is located between the cover plate layer 900 and the polarizing layer 700. The optical adhesive layer 800 mainly functions as an adhesive. The display screen further includes a base layer 1000, and the base layer 1000 is stacked on the display layer 200a at a side away from the film encapsulation layer 500. The base layer 1000 may be made of foam and copper foil to provide cushioning.
Based on the display screen disclosed in any one of the above embodiments, the present application further discloses an electronic device. The electronic equipment comprises the display screen in any one of the embodiments, so that the electronic equipment can adjust the local pixel gray scale of the display screen according to the local difference of the illumination intensity of the environment where the display screen is located, and further the influence of the adjustment of the brightness of the display screen on the fidelity of the display picture of the display screen is avoided. In addition, the power consumption of the electronic equipment during use can be reduced, and the standby time of the electronic equipment is prolonged.
The electronic device disclosed in the embodiment of the application can be a device provided with a display screen, such as a mobile phone, a tablet computer, an electronic book reader, and a wearable device (e.g., smart glasses), and the specific type of the electronic device is not limited in the embodiment of the application.
Based on the electronic equipment disclosed by any embodiment of the invention, the invention further discloses a control method of the electronic equipment. The control method of the electronic device can be applied to any electronic device disclosed in the implementation of the invention. The control method of the electronic equipment comprises the following steps:
step 101: the light sensing unit 100 senses the illumination intensity;
step 102: the driving circuit receives the light intensity sensed by the light sensing unit 100, and controls the brightness of the pixel unit 200 of the corresponding display area of the light sensing unit 100 according to the light intensity sensed by the light sensing unit 100.
In an alternative embodiment, the light sensing unit 100 may be a photoelectric conversion chip, wherein the driving circuit receives the intensity of light sensed by the light sensing unit 100, and controls the brightness of the pixel unit 200 in the display area corresponding to the light sensing unit 100 according to the intensity of light sensed by the light sensing unit 100 includes:
step 103: the driving circuit adjusts the brightness of the pixel unit 200 in the corresponding display area of the light sensing unit 100 according to the corresponding relationship between the voltage at the two ends of the light sensing unit 100 and the display brightness of the pixel unit 200.
Optionally, the driving circuit receives the illumination intensity sensed by the light sensing unit 100, and converts the illumination intensity sensed by the light sensing unit 100 into a digital signal through analysis and processing, and controls the brightness of the corresponding pixel unit 200. The driving circuit may include an a/D converter to convert the voltage value at the two ends of the light sensing unit 100, i.e., the analog information, into digital information, and control the brightness of the pixel unit 200, so as to precisely adjust the brightness of the display screen and improve the fidelity of the display image of the display screen.
The invention further discloses a control device based on the control method of the electronic equipment disclosed by the embodiment of the invention, and the control device is suitable for the control method of the electronic equipment in any one implementation of the invention. The control device comprises a receiving module and a control module. The receiving module is configured to receive the sensed illumination intensity of the light sensing unit 100. And the control module is connected with the receiving module and controls the brightness of the pixel unit 200 of the corresponding display area of the photosensitive unit 100 according to the illumination intensity received by the receiving module.
Optionally, the light sensing unit 100 of the receiving module is communicatively connected, so that the receiving module can receive the light intensity sensed by the light sensing unit 100. There are many ways of communication connection, for example: bluetooth connection, WIFI connection and/or data line connection, etc. For this reason, the present application does not limit the specific manner in which the receiving module is communicatively connected to the photosensitive unit 100.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A display screen is characterized by comprising a plurality of photosensitive units (100), a plurality of pixel units (200) and a driving circuit, wherein a display layer (200a) is formed by the plurality of pixel units (200), the photosensitive units (100) correspond to the pixel units (200) one by one, the pixel units (200) are provided with mounting holes, and the photosensitive units (100) are arranged in the mounting holes;
the drive circuit is connected with the pixel unit (200) and the photosensitive unit (100), the photosensitive unit (100) senses the illumination intensity of the environment where the pixel unit (200) is located corresponding to the photosensitive unit (100), and the drive circuit adjusts the brightness of the pixel unit (200) corresponding to the photosensitive unit (100) according to the illumination intensity sensed by the photosensitive unit (100).
2. A display screen according to claim 1, wherein the light sensing unit (100) comprises a light absorbing layer (110), a light absorbing hole transport layer (120) and a light absorbing electron transport layer (130), the light absorbing hole transport layer (120) and the light absorbing electron transport layer (130) are stacked on the light absorbing layer (110), the light absorbing layer (110) is located between the light absorbing hole transport layer (120) and the light absorbing electron transport layer (130), and the light absorbing hole transport layer (120) is connected to the cathode terminal of the driving circuit and the light absorbing electron transport layer (130) is connected to the anode terminal of the driving circuit.
3. The display screen of claim 1, wherein the light sensing unit (100) is a photoelectric conversion chip.
4. A display screen according to claim 1, characterised in that the pixel cell (200) comprises a light emitting cell (210), a light emitting electron transport layer (220), a light emitting hole transport layer (230), an electron injection layer (240) and a hole injection layer (250),
the light emitting electron transport layer (220) and the light emitting hole transport layer (230) are stacked on the light emitting unit (210), and the light emitting unit (210) is located between the light emitting electron transport layer (220) and the light emitting hole transport layer (230);
the electron injection layer (240) is superposed on one side of the light-emitting electron transport layer (220) which is far away from the light-emitting unit (210), and the electron injection layer (240) is connected with the cathode end of the driving circuit;
the hole injection layer (250) is superposed on the side of the light-emitting hole transport layer (230) facing away from the light-emitting unit (210), and the hole injection layer (250) is connected with the anode end of the drive circuit.
5. A display screen according to any one of claims 1 to 4, further comprising a cathode layer (400) and an anode layer (300), the cathode layer (400) and the anode layer (300) being stacked on the display layer (200a), the display layer (200a) being located between the cathode layer (400) and the anode layer (300);
the drive circuit comprises a plurality of first cathode ends and a plurality of first anode ends, the first cathode ends are distributed on the cathode layer (400), the first anode ends are distributed on the anode layer, the first cathode ends and the first anode ends correspond to the pixel units (200) one by one, and the pixel units (200) correspond to the first cathode ends and the first anode ends.
6. A display screen according to claim 5, wherein the light sensing unit (100) comprises a first electrode terminal and a second electrode terminal, the pixel unit (200) comprises a third electrode terminal and a fourth electrode terminal,
a first electrode end of the photosensitive unit (100) and a fourth electrode end of the pixel unit (200) corresponding to the photosensitive unit (100) are connected to the same first anode end;
the second electrode end of the photosensitive unit (100) and the third electrode end of the pixel unit (200) corresponding to the photosensitive unit (100) are connected to the same first cathode end.
7. The display screen of claim 5, wherein the driving circuit further comprises a plurality of second cathode terminals and a plurality of second anode terminals, the second cathode terminals are distributed on the cathode layer (400), the second anode terminals are distributed on the anode layer, the second cathode terminals and the second anode terminals respectively correspond to the light sensing units (100) one to one, and the light sensing units (100) are connected to the second cathode terminals and the second anode terminals corresponding to the light sensing units (100).
8. An electronic device characterized by comprising a display screen according to any one of claims 1 to 7.
9. A display control method, which is applicable to the electronic device of claim 8, comprising:
the light sensing unit (100) senses the illumination intensity;
the driving circuit receives the illumination intensity sensed by the photosensitive unit (100), and controls the brightness of the pixel unit (200) in the display area corresponding to the photosensitive unit (100) according to the illumination intensity sensed by the photosensitive unit (100).
10. The display control method according to claim 9, wherein the light sensing unit (100) is a photoelectric conversion chip, and wherein the driving circuit receives the intensity of the light sensed by the light sensing unit (100) and controls the brightness of the pixel unit (200) in the corresponding display area of the light sensing unit (100) according to the intensity of the light sensed by the light sensing unit (100) comprises:
the driving circuit adjusts the brightness of the pixel unit (200) in the corresponding display area of the photosensitive unit (100) according to the corresponding relation between the voltage at two ends of the photosensitive unit (100) and the display brightness of the pixel unit (200).
11. A control device to which the control method according to claim 9 or 10 is applicable, characterized by comprising:
the receiving module is used for receiving the sensed illumination intensity of the photosensitive unit (100);
and the control module is connected with the receiving module and controls the brightness of the pixel unit (200) in the display area corresponding to the photosensitive unit (100) according to the illumination intensity received by the receiving module.
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