CN114420051B - Man-machine interaction pixel circuit and OLED display screen - Google Patents
Man-machine interaction pixel circuit and OLED display screen Download PDFInfo
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- CN114420051B CN114420051B CN202210111984.5A CN202210111984A CN114420051B CN 114420051 B CN114420051 B CN 114420051B CN 202210111984 A CN202210111984 A CN 202210111984A CN 114420051 B CN114420051 B CN 114420051B
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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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The embodiment of the application provides a man-machine interaction pixel circuit and an OLED display screen, wherein the circuit comprises: the system comprises a plurality of man-machine interaction pixel units, a plurality of display units and a plurality of display units, wherein each man-machine interaction pixel unit comprises a plurality of pixel sub-circuits and a laser position display sub-circuit, and the laser position display sub-circuits are connected with all the pixel sub-circuits in the same man-machine interaction pixel unit; the laser position display sub-circuit is used for receiving laser intensity signals at the designated positions, converting the laser intensity signals into electric signals and outputting the electric signals to each pixel sub-circuit in the same man-machine interaction pixel unit; and the pixel sub-circuit is used for displaying preset colors after receiving the electric signals of the laser position display sub-circuit. The circuit can display the preset color at the laser irradiation position when the laser pen irradiates the OLED display screen, and can clearly display the indication position of the laser pen, thereby improving the man-machine interaction effect.
Description
Technical Field
The application relates to the technical field of pixel circuits, in particular to a man-machine interaction pixel circuit and an OLED display screen.
Background
An OLED (Organic Light-Emitting Diode) display screen is a display screen made of Organic Light-Emitting diodes. The light-emitting diode display has the excellent characteristics of no backlight source, high contrast, thin thickness, wide visual angle, high reaction speed, wide application temperature range, simple structure and manufacturing process and the like, and can be widely applied to consumer electronic equipment such as mobile phones, game machines, computers and the like, and instruments or plane instruments.
In the application process of the large-size OLED display, the laser pen can be used for replacing the mouse to perform remote human-computer interaction, and because the OLED display is provided with the design for preventing the reflection of ambient light, when the light of the laser pen irradiates the OLED display, the reflected light can be weak, so that the specific indication position of the laser pen is not seen clearly in the human-computer interaction process, and the human-computer interaction effect is further affected.
Disclosure of Invention
The embodiment of the application aims to provide a man-machine interaction pixel circuit and an OLED display screen, so that the indication position of a laser pen is clearly displayed in the application process of a large-size OLED display, and the man-machine interaction effect is improved. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a man-machine interaction pixel circuit, where the circuit includes:
the system comprises a plurality of man-machine interaction pixel units, a plurality of display units and a plurality of display units, wherein each man-machine interaction pixel unit comprises a plurality of pixel sub-circuits and a laser position display sub-circuit, and the laser position display sub-circuits are connected with all the pixel sub-circuits in the same man-machine interaction pixel unit;
the laser position display sub-circuit is used for receiving laser intensity signals at the designated positions, converting the laser intensity signals into electric signals and outputting the electric signals to each pixel sub-circuit in the same man-machine interaction pixel unit;
and the pixel sub-circuit is used for displaying preset colors after receiving the electric signals of the laser position display sub-circuit.
In one possible embodiment, the laser position display sub-circuit includes:
the device comprises a photosensitive element, a fourth MOS tube and a sixth MOS tube;
the first end of the photosensitive element is connected with the first end of the fourth MOS tube and the positive electrode of the second power supply respectively;
the second end of the photosensitive element is respectively connected with the grid electrode of the fourth MOS tube and the second end of the sixth MOS tube;
the second end of the fourth MOS tube is connected with each pixel sub-circuit and each pixel sub-circuit in the same man-machine interaction pixel unit;
and the grid electrode of the sixth MOS tube is connected with the first end of the sixth MOS tube and the cathode of the second power supply.
In one possible implementation, the pixel sub-circuit includes: an R pixel sub-circuit, a G pixel sub-circuit, and a B pixel sub-circuit;
the R pixel sub-circuit includes: the first MOS transistor, the second MOS transistor, the third MOS transistor, the first capacitor and the first light-emitting diode;
the G pixel sub-circuit includes: a tenth MOS tube, an eleventh MOS tube, a twelfth MOS tube, a thirteenth MOS tube, a second capacitor and a second light-emitting diode;
the B pixel sub-circuit includes: a twenty-second MOS tube, a twenty-third MOS tube, a twenty-fourth MOS tube, a twenty-fifth MOS tube, a sixth capacitor and a fifth light-emitting diode;
the first end of the first MOS tube is connected with the second data end, the second end of the first MOS tube is respectively connected with the first end of the first capacitor and the grid electrode of the second MOS tube, and the grid electrode of the first MOS tube is connected with the first grid electrode scanning voltage end;
the first end of the second MOS tube is connected with the positive electrode of the first power supply, and the second end of the second MOS tube is respectively connected with the first end of the third MOS tube, the second end of the fourth MOS tube, the second end of the first capacitor and the first end of the first light-emitting diode;
the second end of the third MOS tube is connected with the voltage detection module, and the grid electrode of the third MOS tube is connected with the second grid scanning voltage end;
the second end of the first light-emitting diode is connected with the negative electrode of the second power supply;
the first end of the tenth MOS tube is connected with the first data end, the second end of the tenth MOS tube is respectively connected with the first end of the second capacitor and the grid electrode of the eleventh MOS tube, and the grid electrode of the tenth MOS tube is connected with the first grid scanning voltage end;
the first end of the eleventh MOS tube is connected with the positive electrode of the first power supply, and the second end of the eleventh MOS tube is respectively connected with the first end of the twelfth MOS tube, the second end of the thirteenth MOS tube, the second end of the second capacitor and the first end of the second light-emitting diode;
the second end of the twelfth MOS tube is connected with the voltage detection module, and the grid electrode of the twelfth MOS tube is connected with the second grid scanning voltage end;
the first end of the thirteenth MOS tube is connected with the negative electrode of the first power supply, and the grid electrode of the thirteenth MOS tube is connected with the grid electrode of the fourth MOS tube;
the second end of the second light-emitting diode is connected with the negative electrode of the first power supply;
the first end of the twenty-second MOS tube is connected with a third data end, the second end of the twenty-second MOS tube is respectively connected with the first end of the sixth capacitor and the grid electrode of the twenty-third MOS tube, and the grid electrode of the twenty-second MOS tube is connected with a first grid scanning voltage end;
the first end of the twenty-third MOS tube is connected with the positive electrode of the first power supply, and the second end of the twenty-third MOS tube is respectively connected with the first end of the twenty-fourth MOS tube, the second end of the twenty-fifth MOS tube, the second end of the sixth capacitor and the first end of the fifth light-emitting diode;
the second end of the twenty-fourth MOS tube is connected with the voltage detection module, and the grid electrode of the twenty-fourth MOS tube is connected with a second grid electrode scanning voltage end;
the first end of the twenty-fifth MOS tube is connected with the negative electrode of the first power supply, and the grid electrode of the twenty-fifth MOS tube is connected with the grid electrode of the fourth MOS tube;
and the second end of the fifth light-emitting diode is connected with the negative electrode of the first power supply.
In one possible implementation, when the laser position display sub-circuit receives a laser intensity signal at a specified position, a red sub-pixel in a pixel at the specified position displays an L255 gray scale, a green sub-pixel displays an L0 gray scale, and a blue sub-pixel displays an L0 gray scale.
In a possible implementation manner, the man-machine interaction pixel unit further comprises a laser positioning sub-circuit, wherein the laser positioning sub-circuit is connected with a laser position display sub-circuit in the same man-machine interaction pixel unit;
the laser position display sub-circuit is also used for outputting the electric signal converted by the laser intensity signal to a laser positioning sub-circuit in the same man-machine interaction pixel unit;
and the laser positioning sub-circuit is used for outputting a positioning signal after receiving the electric signal of the laser position display sub-circuit.
In one possible embodiment, the laser positioning sub-circuit comprises:
a fifth MOS tube, a seventh MOS tube, an eighth MOS tube and a fifth capacitor;
the grid electrode of the fifth MOS tube is connected with the first grid electrode scanning voltage end, the first end of the fifth MOS tube is connected with the grid electrode of the eighth MOS tube, and the second end of the fifth MOS tube is respectively connected with the second end of the sixth MOS tube, the grid electrode of the seventh MOS tube and the first end of the fifth capacitor;
the second end of the seventh MOS tube is connected with the first end of the eighth MOS tube, and the first end of the seventh MOS tube is connected with the power supply voltage VDD;
the second end of the eighth MOS tube is connected with the voltage detection module;
and the second end of the fifth capacitor is connected with the negative electrode of the second power supply.
In one possible implementation, the voltage detection module is further configured to: and detecting the positioning signals acquired by the laser positioning sub-circuit.
In one possible implementation, each of the man-machine interaction pixel units includes four pixel sub-circuits, one pixel for each of the pixel sub-circuits.
In a second aspect, an embodiment of the present application provides an OLED display screen, including:
the human-computer interaction pixel circuit of any of the first aspects.
In a possible implementation manner, the OLED display screen includes a voltage detection module, and when the man-machine interaction pixel circuit includes a laser positioning sub-circuit and a voltage detection module, the OLED display screen further includes a source chip and an analog-digital signal converter;
the voltage detection module is also used for sending a positioning analog signal to the analog-digital signal converter when detecting that the laser positioning sub-circuit collects a positioning signal;
the analog-digital signal converter is used for converting the received positioning analog signal into a positioning digital signal;
and the source chip is used for reading the positioning digital signal of the analog-digital signal converter to obtain the position of the laser irradiated on the OLED display screen.
The embodiment of the application has the beneficial effects that:
the embodiment of the application provides a man-machine interaction pixel circuit and an OLED display screen, wherein the circuit comprises: the system comprises a plurality of man-machine interaction pixel units, a plurality of display units and a plurality of display units, wherein each man-machine interaction pixel unit comprises a plurality of pixel sub-circuits and a laser position display sub-circuit, and the laser position display sub-circuits are connected with all the pixel sub-circuits in the same man-machine interaction pixel unit; the laser position display sub-circuit is used for receiving laser intensity signals at the designated positions, converting the laser intensity signals into electric signals and outputting the electric signals to each pixel sub-circuit in the same man-machine interaction pixel unit; and the pixel sub-circuit is used for displaying preset colors after receiving the electric signals of the laser position display sub-circuit. The circuit can display the preset color at the laser irradiation position when the laser pen irradiates the OLED display screen, and can clearly display the indication position of the laser pen, thereby improving the man-machine interaction effect. Of course, it is not necessary for any one product or method of practicing the application to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and other embodiments may be obtained according to these drawings to those skilled in the art.
FIG. 1 is a first schematic diagram of a man-machine interaction pixel circuit according to an embodiment of the application;
FIG. 2 is a schematic diagram of a laser position display sub-circuit according to an embodiment of the application;
FIG. 3 is a first schematic diagram of a pixel sub-circuit according to an embodiment of the application;
FIG. 4 is an effect diagram of a man-machine interaction pixel circuit according to an embodiment of the application;
FIG. 5 (a) is a second schematic diagram of a pixel sub-circuit according to an embodiment of the application;
FIG. 5 (b) is a timing diagram of a pixel sub-circuit according to an embodiment of the application;
FIG. 6 is a schematic diagram of a voltage detection module according to an embodiment of the application;
FIG. 7 is a second schematic diagram of a man-machine interaction pixel circuit according to an embodiment of the application;
FIG. 8 is a schematic diagram of a laser positioning sub-circuit according to an embodiment of the present application;
fig. 9 is a system block diagram of a man-machine interaction pixel circuit according to an embodiment of the application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art based on the present application are included in the scope of protection of the present application.
In order to clearly display the indication position of the laser pen, the embodiment of the application provides a man-machine interaction pixel circuit, referring to fig. 1, the circuit comprises:
the system comprises a plurality of man-machine interaction pixel units 1, wherein each man-machine interaction pixel unit comprises a plurality of pixel sub-circuits 11 and a laser position display sub-circuit 12, and the laser position display sub-circuits 12 are connected with all the pixel sub-circuits 11 in the same man-machine interaction pixel unit;
the laser position display sub-circuit 12 is configured to receive a laser intensity signal at a specified position, convert the laser intensity signal into an electrical signal, and output the electrical signal to each pixel sub-circuit in the same man-machine interaction pixel unit;
the pixel sub-circuit 11 is configured to display a preset color after receiving the electrical signal of the laser position display sub-circuit.
Each pixel sub-circuit corresponds to a pixel, and according to the fact that the resolution of the OLED display screen is generally high, a light spot irradiated on the OLED display screen by a laser pen can cover pixels in a plurality of OLED display screens. In order to save the cost of the man-machine interaction pixel circuit and reduce the volume of the man-machine interaction pixel circuit, a plurality of pixel sub-circuits can share one laser position display sub-circuit.
The preset color is a color which can be displayed by the pixels, and the specific color can be set according to actual needs. For example, the preset color may be set to red or green, or the like.
In the embodiment of the application, the laser position display sub-circuit is connected with each pixel sub-circuit in the same man-machine interaction pixel unit, when the laser position display sub-circuit receives the laser intensity signal at the designated position, the laser intensity signal is converted into an electric signal and is output to each pixel sub-circuit in the same man-machine interaction pixel unit, and the pixel sub-circuit displays the preset color according to the received electric signal, so that the specific position indicated by the laser pen can be clearly displayed by displaying the preset color.
In one possible embodiment, referring to fig. 2, the laser position display sub-circuit 12 includes:
a photosensitive element PIN, a fourth MOS tube T4 and a sixth MOS tube T6;
the first end of the photosensitive element PIN is respectively connected with the first end of the fourth MOS tube T4 and the second power supply positive electrode (Vd 2);
the second end of the photosensitive element PIN is respectively connected with the grid electrode of the fourth MOS tube T4 and the second end of the sixth MOS tube T6;
the second end of the fourth MOS tube T4 is connected with each pixel sub-circuit in the same man-machine interaction pixel unit;
the grid electrode of the sixth MOS tube T6 is connected with the first end of the sixth MOS tube T6 and the second power supply negative electrode (VSS).
The laser position display sub-circuit receives laser intensity signals (the laser intensity is much higher than that of common natural light) emitted by a laser pen and irradiated on an OLED display screen through a photosensitive element PIN, when the photosensitive element PIN receives the laser intensity signals, the grid electrode of a fourth MOS tube T4 is at a high level, the fourth MOS tube T4 is opened at the moment, the voltage value output by the second end of the fourth MOS tube T4 is Vd2, and Vd2 is output to each pixel sub-circuit in the same man-machine interaction pixel unit. When the photosensitive element PIN does not receive the laser intensity signal, the grid electrode of the fourth MOS tube T4 is at a low level, and at the moment, the fourth MOS tube T4 is closed.
In one example, each MOS transistor may be a TFT (Thin Film Transistor ). In one example, for any MOS tube in the man-machine interaction pixel circuit, the MOS tube can be an N-type MOS tube or a P-type MOS tube, and can be specifically selected according to actual conditions; the first end of the MOS tube is a source electrode or a drain electrode, and the second end of the MOS tube is a drain electrode or a source electrode corresponding to the first end.
In the embodiment of the application, the photosensitive element receives the laser intensity signal, converts the laser intensity signal into the electric signal and outputs the electric signal to each pixel sub-circuit in the same man-machine interaction pixel unit, thereby realizing the purpose of controlling the display of the pixel sub-circuit according to whether the laser intensity signal can be received or not.
In one possible embodiment, referring to fig. 3, the pixel sub-circuit includes: an R pixel sub-circuit, a G pixel sub-circuit, and a B pixel sub-circuit;
the R pixel sub-circuit includes: the first MOS tube T1, the second MOS tube T2, the third MOS tube T3, the first capacitor C1 and the first light-emitting diode D1;
the G pixel sub-circuit includes: tenth MOS tube T10, eleventh MOS tube T11, twelfth MOS tube T12, thirteenth MOS tube T13, second capacitor C2, and second LED D2;
the B pixel sub-circuit includes: twenty-second MOS tube T22, twenty-third MOS tube T23, twenty-fourth MOS tube T24, twenty-fifth MOS tube T25, sixth capacitor C6, and fifth LED D5;
the first end of the first MOS tube T1 is connected with a second data end (data 2), the second end of the first MOS tube T1 is respectively connected with the first end of the first capacitor C1 and the grid electrode of the second MOS tube T2, and the grid electrode of the first MOS tube T1 is connected with a first grid scanning voltage end (gate A (n));
the first end of the second MOS tube T2 is connected with a first power supply positive electrode (Vd 1), and the second end of the second MOS tube T2 is respectively connected with the first end of the third MOS tube T3, the second end of the fourth MOS tube T4, the second end of the first capacitor C1 and the first end of the first light-emitting diode D1;
the second end of the third MOS tube T3 is connected with the voltage detection module, and the grid electrode of the third MOS tube T3 is connected with a second grid scanning voltage end (GateB (n));
a second end of the first light emitting diode D1 is connected with the second power supply cathode (VSS);
the first end of the tenth MOS transistor T10 is connected with a first data end (data 1), the second end of the tenth MOS transistor T10 is respectively connected with the first end of the second capacitor C2 and the grid electrode of the eleventh MOS transistor T11, and the grid electrode of the tenth MOS transistor T10 is connected with the first grid scanning voltage end (gate A (n));
the first end of the eleventh MOS transistor T11 is connected to the first power supply positive electrode (Vd 1), and the second end of the eleventh MOS transistor T11 is connected to the first end of the twelfth MOS transistor T12, the second end of the thirteenth MOS transistor T13, the second end of the second capacitor C2, and the first end of the second light emitting diode D2, respectively;
the second end of the twelfth MOS transistor T12 is connected with the voltage detection module, and the grid electrode of the twelfth MOS transistor T12 is connected with a second grid electrode scanning voltage end (GateB (n));
the first end of the thirteenth MOS tube T13 is connected with a first power supply cathode (VS 1), and the grid electrode of the thirteenth MOS tube T13 is connected with the grid electrode of the fourth MOS tube T4;
a second end of the second light emitting diode D2 is connected with the first power supply cathode (VS 1);
the first end of the twenty-second MOS transistor T22 is connected to the third data end (data 3), the second end of the twenty-second MOS transistor T22 is connected to the first end of the sixth capacitor C6 and the gate of the twenty-third MOS transistor T23, and the gate of the twenty-second MOS transistor T22 is connected to the first gate scan voltage end (GateA (n));
the first end of the twenty-third MOS tube T23 is connected with a first power supply positive electrode (Vd 1), and the second end of the twenty-third MOS tube T23 is respectively connected with the first end of the twenty-fourth MOS tube T24, the second end of the twenty-fifth MOS tube T25, the second end of the sixth capacitor C6 and the first end of the fifth light-emitting diode D5;
the second end of the twenty-four MOS transistor T24 is connected with the voltage detection module, and the grid electrode of the twenty-four MOS transistor T24 is connected with a second grid scanning voltage end (GateB (n));
the first end of the second fifteenth MOS tube T25 is connected with a first power supply cathode (VS 1), and the grid electrode of the second fifteenth MOS tube T25 is connected with the grid electrode of the fourth MOS tube T4;
a second end of the fifth light emitting diode D5 is connected to the first power supply cathode (VS 1).
The second power supply positive electrode (Vd 2) and the second power supply negative electrode (VSS) are the positive electrode and the negative electrode of one power supply, the first power supply positive electrode (Vd 1) and the first power supply negative electrode (VS 1) are the positive electrode and the negative electrode of the other power supply, the power supply voltage value can be provided according to actual needs, for example, can be 5V or 8V, and the two power supplies are mutually independent power supplies.
In fig. 3, only the connection relation between the laser position display sub-circuit and one pixel sub-circuit is illustrated, and for each pixel sub-circuit in the same man-machine interaction pixel unit, the connection mode shown in fig. 3 can be adopted to connect with the laser position display sub-circuit. It will be understood that the specific structure of the pixel sub-circuit in the embodiment of the present application is only for illustrating the connection relationship between the laser position display sub-circuit and the pixel sub-circuit, and the structure of the pixel sub-circuit in the present application is not limited to that shown in fig. 3; those skilled in the art may use other configurations of the pixel sub-circuits instead of the configuration shown in fig. 3, which are within the scope of the present application.
Referring to fig. 3, when the second power supply positive electrode (Vd 2) is at a low level, the laser position display sub-circuit does not work, and the OLED display screen normally displays the picture content through each pixel sub-circuit. When the second power supply positive electrode (Vd 2) is at a high level, the laser position display sub-circuit works, when the photosensitive element PIN receives a laser intensity signal, the grid electrode of the fourth MOS tube T4 is at a high level, the fourth MOS tube T4 is opened at the moment, the voltage value output by the second end of the fourth MOS tube T4 is Vd2, vd2 is output to the first end of the D1, at the moment, the D1 emits light, the corresponding color is displayed according to the voltage value of Vd2, meanwhile, the high level of the grid electrode of the fourth MOS tube T4 is output to the thirteenth MOS tube T13 in the G pixel sub-circuit, the second fifteenth MOS tube T25 in the B pixel sub-circuit, T13 and T25 are both opened, vs1 is output to the first end of the D2 and the first end of the D5, at the moment, the D2 and the D5 do not emit light, and the function of displaying the irradiation position of the laser pen is realized, and the display effect is shown in FIG. 4. When the photosensitive element PIN does not receive the laser intensity signal, the grid electrode of the fourth MOS tube T4 is at a low level, and at the moment, the fourth MOS tube T4 is closed, so that the normal display of the pixel sub-circuit is not affected. The effect achieved is shown in fig. 4, and the indication position in the figure is the position of the laser pen irradiated on the OLED display screen.
The first gate scan voltage terminal (GateA (n)), the second gate scan voltage terminal (GateB (n)) is a gate pulse signal terminal for driving a scan line for the OLED display panel, wherein GateA (n) represents a gate pulse signal of the scan line of the n-th row.
The first data terminal (data 1), the second data terminal (data 2) and the third data terminal (data 3) are generated by a source (source) driving circuit and are used for driving the display of the pixel sub-circuit.
The voltage detection module is used for detecting threshold voltage Vth in the R pixel sub-circuit, the G pixel sub-circuit and the B pixel sub-circuit in the pixel sub-circuit, and compensation of the pixel sub-circuit is realized through detection of the threshold voltage Vth. Specifically, taking the R pixel sub-circuit as an example, referring to fig. 5 (a) and 5 (b) for the detection process of the voltage detection module on the threshold voltage Vth, in the stage T1, gateA and GateB are both at high level, at this time, T1 and T3 are both turned on, the voltage value Vdata2 of the g point writing data2, and the reference voltage value Vref is written at the u point, and since Vref > data2, it is ensured that T2 is in an on state. In the T2 stage, gateA and GateB are low, T2 is turned on, charging of u point is started, and T2 is turned off when charging to Vdata 2-Vth. The voltage detection module detects a Vth value, which is a shutdown detection.
In the voltage detection process of the voltage detection module, referring to fig. 6, vin is the detected threshold voltage Vth, after first-order filtering and amplification, the voltage is input into an AD (analog signal to digital signal) conversion module to convert an analog signal into a digital signal, the converted data is transmitted to the MCU to perform compensation operation, and then the compensated data is transmitted to the source chip to perform driving display.
In the embodiment of the application, the pixel sub-circuit and the laser position display sub-circuit are combined to display the trace of the laser pen in real time, so that the specific position of the laser pen irradiated on the OLED display screen is displayed.
In one possible embodiment, when the laser position display sub-circuit receives a laser intensity signal at a specified position, a red sub-pixel in a pixel at the specified position displays an L255 gray scale, a green sub-pixel displays an L0 gray scale, and a blue sub-pixel displays an L0 gray scale.
RGB color mode uses an RGB model to assign an intensity value in the range of 0-255 to the RGB components of each pixel in the image. By using three primary colors of different intensities, the red, green and blue light rays are combined into different colors.
In one example, the red sub-pixel displays the L255 gray scale, the green sub-pixel displays the L0 gray scale, and the blue sub-pixel displays the L0 gray scale in the pixels at the specified positions, and the pixels at the specified positions display the red color.
In the embodiment of the application, different gray scales are allocated to each sub-pixel in the pixel to display preset colors.
In a possible embodiment, referring to fig. 7, the man-machine interaction pixel unit further includes a laser positioning sub-circuit 13, and the laser positioning sub-circuit 13 is connected to the laser position display sub-circuit 12 in the same man-machine interaction pixel unit;
the laser position display sub-circuit 12 is further configured to output an electrical signal converted from the laser intensity signal to a laser positioning sub-circuit in the same man-machine interaction pixel unit;
the laser positioning sub-circuit 13 is configured to output a positioning signal after receiving an electrical signal from the laser position display sub-circuit.
The laser positioning sub-circuit is used for realizing the function of a mouse determining key, and the man-machine interaction pixel circuit is added with the function of the mouse determining key under the condition that the function of displaying the irradiation position of the laser pen is realized, so that the positioning interaction operation is realized.
In the embodiment of the application, the function of determining the key by the mouse is realized through the laser positioning sub-circuit, so that the man-machine interaction effect is better.
In one possible embodiment, referring to fig. 8, the laser positioning sub-circuit includes:
a fifth MOS tube T5, a seventh MOS tube T7, an eighth MOS tube T8 and a fifth capacitor C5;
the gate of the fifth MOS transistor T5 is connected to the first gate scan voltage end (GateA (n)), the first end of the fifth MOS transistor T5 is connected to the gate of the eighth MOS transistor T8, and the second end of the fifth MOS transistor T5 is connected to the second end of the sixth MOS transistor T6, the gate of the seventh MOS transistor T7, and the first end of the fifth capacitor C5, respectively;
the second end of the seventh MOS tube T7 is connected with the first end of the eighth MOS tube T8, and the first end of the seventh MOS tube T7 is connected with the power supply voltage VDD;
the second end of the eighth MOS tube T8 is connected with the voltage detection module;
a second end of the fifth capacitor C5 is connected to the second power supply negative electrode (VSS).
When the laser pen irradiates on the OLED display screen, the photosensitive element PIN receives a laser intensity signal, the first end of the fifth capacitor C5 is a high-level signal, when the laser pen does not irradiate on the OLED display screen, the photosensitive element PIN does not receive the laser intensity signal, the sixth MOS tube T6 is opened, the first end of the fifth capacitor C5 is a low level, and the fifth capacitor C5 is reset through a second power supply negative electrode (VSS).
The first gate scan voltage terminal (GateA (n)) in the laser positioning sub-circuit is used for progressive scan positioning and is shared with the first gate scan voltage terminal (GateA (n)) in the pixel sub-circuit.
When the photosensitive element PIN receives the laser intensity signal, the point a is high level, both T7 and T8 are closed, the second end (Test Line) of the eighth MOS tube T8 outputs a low level signal, when the photosensitive element PIN does not receive the laser intensity signal, the point a is low level, both T7 and T8 are opened, the second end (Test Line) of the eighth MOS tube T8 outputs a high level signal, and the positioning of the irradiation position of the laser pen is realized.
In one example, each MOS transistor may be a TFT (Thin Film Transistor ). In one example, for any MOS tube in the man-machine interaction pixel circuit, the MOS tube can be an N-type MOS tube or a P-type MOS tube, and can be specifically selected according to actual conditions; the first end of the MOS tube is a source electrode or a drain electrode, and the second end of the MOS tube is a drain electrode or a source electrode corresponding to the first end.
Fig. 8 only shows a specific connection manner of one pixel sub-circuit and the laser position display sub-circuit, and the connection manner of the plurality of pixel sub-circuits and the laser position display sub-circuit, and the laser position display sub-circuit and the laser position positioning sub-circuit can refer to fig. 8, and are not repeated herein.
In the embodiment of the application, the laser positioning sub-circuit receives the signal of the laser position display sub-circuit to realize the positioning function of the irradiation position of the laser pen, namely the function of determining the key by the mouse.
In a possible embodiment, the voltage detection module is further configured to: and detecting the positioning signals acquired by the laser positioning sub-circuit.
And detecting a positioning signal output by a second end (Test Line) of the eighth MOS tube T8 in the laser positioning sub-circuit through a voltage detection module.
In the embodiment of the application, the voltage detection module is used for detecting the positioning signal of the laser positioning sub-circuit, so that the positioning function of the irradiation position of the laser pen is realized.
In one possible embodiment, referring to fig. 9, each of the man-machine interaction pixel units includes four pixel sub-circuits, one pixel for each of the pixel sub-circuits.
Fig. 9 is a system block diagram illustrating a man-machine interaction pixel circuit by taking an example that each man-machine interaction pixel unit includes four pixel sub-circuits, and it can be understood that fig. 9 is only a schematic diagram, a specific connection manner of internal elements can be seen in fig. 8, and each man-machine interaction pixel unit may include a plurality of pixel sub-circuits, and a specific number can be adjusted according to an actual display effect. For example, each human-machine interaction pixel unit may include three pixel sub-circuits or each human-machine interaction pixel unit may include six pixel sub-circuits.
In the embodiment of the application, the position of the laser pen irradiated on the OLED display screen can be displayed more clearly and positioned more accurately according to the size of the laser pen light spot by the mode that each human-computer interaction pixel unit comprises four pixel sub-circuits.
The embodiment of the application provides an OLED display screen, which comprises:
a human-computer interaction pixel circuit as in any preceding claim.
In a possible embodiment, when the man-machine interaction pixel circuit includes a laser positioning sub-circuit and a voltage detection module, the OLED display screen further includes a source chip and an analog-to-digital signal converter;
the voltage detection module is also used for sending a positioning analog signal to the analog-digital signal converter when detecting that the laser positioning sub-circuit collects a positioning signal;
the analog-digital signal converter is used for converting the received positioning analog signal into a positioning digital signal;
and the source chip is used for reading the positioning digital signal of the analog-digital signal converter to obtain the position of the laser irradiated on the OLED display screen.
When the mouse determining function is started to perform man-machine interaction, the voltage detecting module is required to process the positioning signals, the processed data are transmitted to the source chip, and the position of the laser irradiated on the OLED display screen is calculated by the source chip.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and each embodiment is mainly described in a different manner from other embodiments, so that identical and similar parts between the embodiments are referred to each other.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (9)
1. A human-machine interaction pixel circuit, characterized in that the human-machine interaction pixel circuit comprises:
the system comprises a plurality of man-machine interaction pixel units, a plurality of display units and a plurality of display units, wherein each man-machine interaction pixel unit comprises a plurality of pixel sub-circuits and a laser position display sub-circuit, and the laser position display sub-circuits are connected with all the pixel sub-circuits in the same man-machine interaction pixel unit;
the laser position display sub-circuit is used for receiving laser intensity signals at the designated positions, converting the laser intensity signals into electric signals and outputting the electric signals to each pixel sub-circuit in the same man-machine interaction pixel unit;
the pixel sub-circuit is used for displaying preset colors after receiving the electric signals of the laser position display sub-circuit;
the laser position display sub-circuit includes:
the device comprises a photosensitive element, a fourth MOS tube and a sixth MOS tube;
the first end of the photosensitive element is connected with the first end of the fourth MOS tube and the positive electrode of the second power supply respectively;
the second end of the photosensitive element is respectively connected with the grid electrode of the fourth MOS tube and the second end of the sixth MOS tube;
the second end of the fourth MOS tube is connected with each pixel sub-circuit in the same man-machine interaction pixel unit;
and the grid electrode of the sixth MOS tube is connected with the first end of the sixth MOS tube and the cathode of the second power supply.
2. The human-machine interaction pixel circuit of claim 1, wherein the pixel sub-circuit comprises: an R pixel sub-circuit, a G pixel sub-circuit, and a B pixel sub-circuit;
the R pixel sub-circuit includes: the first MOS transistor, the second MOS transistor, the third MOS transistor, the first capacitor and the first light-emitting diode;
the G pixel sub-circuit includes: a tenth MOS tube, an eleventh MOS tube, a twelfth MOS tube, a thirteenth MOS tube, a second capacitor and a second light-emitting diode;
the B pixel sub-circuit includes: a twenty-second MOS tube, a twenty-third MOS tube, a twenty-fourth MOS tube, a twenty-fifth MOS tube, a sixth capacitor and a fifth light-emitting diode;
the first end of the first MOS tube is connected with the second data end, the second end of the first MOS tube is respectively connected with the first end of the first capacitor and the grid electrode of the second MOS tube, and the grid electrode of the first MOS tube is connected with the first grid electrode scanning voltage end;
the first end of the second MOS tube is connected with the positive electrode of the first power supply, and the second end of the second MOS tube is respectively connected with the first end of the third MOS tube, the second end of the fourth MOS tube, the second end of the first capacitor and the first end of the first light-emitting diode;
the second end of the third MOS tube is connected with the voltage detection module, and the grid electrode of the third MOS tube is connected with the second grid scanning voltage end;
the second end of the first light-emitting diode is connected with the negative electrode of the second power supply;
the first end of the tenth MOS tube is connected with the first data end, the second end of the tenth MOS tube is respectively connected with the first end of the second capacitor and the grid electrode of the eleventh MOS tube, and the grid electrode of the tenth MOS tube is connected with the first grid scanning voltage end;
the first end of the eleventh MOS tube is connected with the positive electrode of the first power supply, and the second end of the eleventh MOS tube is respectively connected with the first end of the twelfth MOS tube, the second end of the thirteenth MOS tube, the second end of the second capacitor and the first end of the second light-emitting diode;
the second end of the twelfth MOS tube is connected with the voltage detection module, and the grid electrode of the twelfth MOS tube is connected with the second grid scanning voltage end;
the first end of the thirteenth MOS tube is connected with the negative electrode of the first power supply, and the grid electrode of the thirteenth MOS tube is connected with the grid electrode of the fourth MOS tube;
the second end of the second light-emitting diode is connected with the negative electrode of the first power supply;
the first end of the twenty-second MOS tube is connected with a third data end, the second end of the twenty-second MOS tube is respectively connected with the first end of the sixth capacitor and the grid electrode of the twenty-third MOS tube, and the grid electrode of the twenty-second MOS tube is connected with a first grid scanning voltage end;
the first end of the twenty-third MOS tube is connected with the positive electrode of the first power supply, and the second end of the twenty-third MOS tube is respectively connected with the first end of the twenty-fourth MOS tube, the second end of the twenty-fifth MOS tube, the second end of the sixth capacitor and the first end of the fifth light-emitting diode;
the second end of the twenty-fourth MOS tube is connected with the voltage detection module, and the grid electrode of the twenty-fourth MOS tube is connected with a second grid electrode scanning voltage end;
the first end of the twenty-fifth MOS tube is connected with the negative electrode of the first power supply, and the grid electrode of the twenty-fifth MOS tube is connected with the grid electrode of the fourth MOS tube;
and the second end of the fifth light-emitting diode is connected with the negative electrode of the first power supply.
3. The man-machine interaction pixel circuit of claim 2, wherein when the laser position display sub-circuit receives a laser intensity signal at a specified position, red sub-pixels in pixels at the specified position display L255 gray scales, green sub-pixels display L0 gray scales, and blue sub-pixels display L0 gray scales.
4. The human-machine interaction pixel circuit of claim 1, wherein the human-machine interaction pixel unit further comprises a laser positioning sub-circuit, the laser positioning sub-circuit being connected with a laser position display sub-circuit in the same human-machine interaction pixel unit;
the laser position display sub-circuit is also used for outputting the electric signal converted by the laser intensity signal to a laser positioning sub-circuit in the same man-machine interaction pixel unit;
and the laser positioning sub-circuit is used for outputting a positioning signal after receiving the electric signal of the laser position display sub-circuit.
5. The human-machine interaction pixel circuit of claim 4, wherein the laser positioning sub-circuit comprises:
a fifth MOS tube, a seventh MOS tube, an eighth MOS tube and a fifth capacitor;
the grid electrode of the fifth MOS tube is connected with a first grid electrode scanning voltage end, the first end of the fifth MOS tube is connected with the grid electrode of the eighth MOS tube, and the second end of the fifth MOS tube is respectively connected with the second end of the sixth MOS tube, the grid electrode of the seventh MOS tube and the first end of the fifth capacitor;
the second end of the seventh MOS tube is connected with the first end of the eighth MOS tube, and the first end of the seventh MOS tube is connected with the power supply voltage VDD;
the second end of the eighth MOS tube is connected with the voltage detection module;
and the second end of the fifth capacitor is connected with the negative electrode of the second power supply.
6. The human-machine interaction pixel circuit of claim 5, wherein the voltage detection module is further configured to: and detecting the positioning signals acquired by the laser positioning sub-circuit.
7. The man-machine interaction pixel circuit according to claim 1, wherein each man-machine interaction pixel unit comprises four pixel sub-circuits, each pixel sub-circuit corresponding to a pixel.
8. An OLED display screen, wherein the OLED display screen comprises:
a human-machine interaction pixel circuit as claimed in any one of claims 1 to 7.
9. The OLED display screen of claim 8, wherein the OLED display screen includes a voltage-further detection module, the OLED display screen further including a source chip, an analog-to-digital signal converter, when the man-machine interaction pixel circuit includes a laser positioning sub-circuit;
the voltage detection module is also used for sending a positioning analog signal to the analog-digital signal converter when detecting that the laser positioning sub-circuit collects a positioning signal;
the analog-digital signal converter is used for converting the received positioning analog signal into a positioning digital signal;
and the source chip is used for reading the positioning digital signal of the analog-digital signal converter to obtain the position of the laser irradiated on the OLED display screen.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595267A (en) * | 2003-09-08 | 2005-03-16 | 三星电子株式会社 | Image display system with light pen |
| CN101887688A (en) * | 2009-05-12 | 2010-11-17 | 索尼公司 | Display device, light detection method and electronic installation |
| CN104464448A (en) * | 2015-01-06 | 2015-03-25 | 京东方科技集团股份有限公司 | Laser pen track recording driving circuit and method, display device, driving method of display device, and laser pen track recording control system and method |
| CN107274823A (en) * | 2017-08-04 | 2017-10-20 | 京东方科技集团股份有限公司 | Image element circuit, hand-written display panel and hand-written display system |
| CN107479281A (en) * | 2017-08-29 | 2017-12-15 | 京东方科技集团股份有限公司 | A kind of image element circuit, dot structure and display panel |
| CN111326110A (en) * | 2020-04-02 | 2020-06-23 | 昆山维信诺科技有限公司 | Pixel circuit, display panel, display device and switching method thereof |
| CN112289256A (en) * | 2020-10-26 | 2021-01-29 | 武汉华星光电半导体显示技术有限公司 | Pixel circuit, display panel and optical touch identification method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060123726A (en) * | 2003-09-25 | 2006-12-04 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Color display screen comprising a plurality of cells |
| US20120212412A1 (en) * | 2009-10-27 | 2012-08-23 | Sharp Kabushiki Kaisha | Pointing device |
| US8669924B2 (en) * | 2010-03-11 | 2014-03-11 | Au Optronics Corporation | Amoled display with optical feedback compensation |
| JP2015102642A (en) * | 2013-11-22 | 2015-06-04 | セイコーエプソン株式会社 | Circuit board, electro-optical device having input function, and electronic apparatus |
| KR102300405B1 (en) * | 2015-04-30 | 2021-09-09 | 삼성디스플레이 주식회사 | Display device |
| US10832623B2 (en) * | 2018-11-13 | 2020-11-10 | Xianyang Caihong Optoelectronics Technology Co., Ltd. | Display panel and display method |
-
2022
- 2022-01-28 CN CN202210111984.5A patent/CN114420051B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595267A (en) * | 2003-09-08 | 2005-03-16 | 三星电子株式会社 | Image display system with light pen |
| CN101887688A (en) * | 2009-05-12 | 2010-11-17 | 索尼公司 | Display device, light detection method and electronic installation |
| CN104464448A (en) * | 2015-01-06 | 2015-03-25 | 京东方科技集团股份有限公司 | Laser pen track recording driving circuit and method, display device, driving method of display device, and laser pen track recording control system and method |
| CN107274823A (en) * | 2017-08-04 | 2017-10-20 | 京东方科技集团股份有限公司 | Image element circuit, hand-written display panel and hand-written display system |
| CN107479281A (en) * | 2017-08-29 | 2017-12-15 | 京东方科技集团股份有限公司 | A kind of image element circuit, dot structure and display panel |
| CN111326110A (en) * | 2020-04-02 | 2020-06-23 | 昆山维信诺科技有限公司 | Pixel circuit, display panel, display device and switching method thereof |
| CN112289256A (en) * | 2020-10-26 | 2021-01-29 | 武汉华星光电半导体显示技术有限公司 | Pixel circuit, display panel and optical touch identification method thereof |
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|---|---|
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