CN118248078A - Display screen and pixel driving method - Google Patents

Abstract

The application discloses a display screen and a pixel driving method, which belong to the technical field of display, and the display screen comprises: a pixel section and a pixel driving section; the pixel driving part is electrically connected with the pixel part; the pixel part comprises at least three pixel groups; the pixel driving section is configured to: acquiring an instruction for driving the pixel part to display a full-color picture in a display detection; the display detection comprises at least three sub-detections; when receiving the instruction, driving each pixel group to emit light with different colors in each sub-detection; and in different sub-detection, the same pixel group is driven to emit light with different colors respectively; the different colors of light include at least red, green and blue light. According to the application, the pixel part is divided into at least three pixel groups, and each pixel group is driven to emit light with different colors in each sub-detection, so that each sub-detection is full-color sub-detection, and the flickering condition caused by single color sub-detection can be avoided.

Description

Display screen and pixel driving method

Technical Field

The application relates to the technical field of display, in particular to a display screen and a pixel driving method.

Background

A conventional Micro-LED (Micro light emitting diode) display screen divides a display monitor into three sub-monitors. Wherein, driving all pixels to emit red light in the first sub-detection (R sub-detection for short); driving all pixels to emit green light in the second sub-detection (G sub-detection); and driving all pixels to emit blue light in the third sub-detection (abbreviated as B sub-detection), so as to achieve full-color display. However, the driving method is divided into three single color sub-detection of R sub-detection, G sub-detection and B sub-detection in one detection, so that the single color sub-detection and flickering condition can be easily perceived by human eyes or when photographing. In order to avoid the flicker condition, the detection rate needs to be improved so as not to be perceived by human eyes, and the data transmission rate needs to be improved to realize the high detection rate, which increases the power consumption and the design difficulty. Therefore, how to avoid the flicker caused by the detection of the monochromatic light is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The application aims to provide a display screen and a pixel driving method, so that flickering caused by monochromatic sub-detection is avoided.

To achieve the above object, the present application provides a display screen including: a pixel section and a pixel driving section; the pixel driving part is electrically connected with the pixel part;

The pixel part comprises at least three pixel groups;

The pixel driving section is configured to:

Acquiring an instruction for driving the pixel part to display a full-color picture in a display detection; the display detection comprises at least three sub-detections;

when the instruction is received, driving each pixel group to respectively emit light with different colors in each sub-detection; and in different sub-detection, driving the same pixel group to emit light with different colors respectively; the different colors of light include at least red, green and blue light.

Optionally, the pixel driving part includes a constant current reference part;

The constant current reference part is used for: providing different bias voltage values for each pixel group in each sub-detection; and providing different bias voltage values to the same pixel group in different sub-detection;

the different bias values include at least a bias value for controlling red luminance, a bias value for controlling green luminance, and a bias value for controlling blue luminance.

Optionally, the pixel driving part includes a digital data driving part;

The digital data driving section is configured to: providing different color data to each pixel group in each sub-detection; and in different sub-detection, respectively providing different color data for the same pixel group;

the different color data includes at least red data, green data, and blue data.

Optionally, the pixel driving part includes a scan driving part;

The scan driving section is configured to: and in each sub-detection, transmitting a scanning driving column signal which is turned on row by row to the pixel part so as to enable the color data provided by the digital data driving part to be written into the pixel part row by row.

Optionally, the pixel driving part includes a light emitting driving part;

The light emission driving section is configured to: and transmitting a light-emitting clock signal to the pixel part in each sub-detection so as to control the light-emitting time of the pixel part through the light-emitting clock signal and the color data set.

Optionally, the pixel driving part includes a main control part and at least three independent control parts;

the main control part is used for: transmitting the same main control signal to each independent control part in each sub-detection; and transmitting different master control signals in different sub-detection;

The independent control part controls the pixel groups one by one and is used for: in each sub-detection, when each independent control part receives the same main control signal, different control signals are transmitted to the corresponding pixel group; in different sub-detection, when the same independent control part receives different main control signals, different control signals are respectively transmitted to the corresponding pixel groups;

The different control signals include at least a control signal for turning on the pixel group emitting red light, a control signal for turning on the pixel group emitting green light, and a control signal for turning on the pixel group emitting blue light.

Optionally, the pixel part includes three pixel groups; the display detection comprises three sub-detections;

The pixel driving part comprises a main control part and three independent control parts;

The independent control part is used for controlling the pixel groups one by one, and is specifically used for:

In the first sub-detection, when the first independent control part receives a first main control signal, a first control signal is transmitted to the first pixel group; transmitting a second control signal to the second pixel group when the second independent control part receives the first main control signal; transmitting a third control signal to a third pixel group when the third independent control part receives the first main control signal;

In the second sub-detection, when the first independent control part receives a second main control signal, the second control signal is transmitted to the first pixel group; transmitting a third control signal to the second pixel group when the second independent control part receives the second main control signal; transmitting the first control signal to the third pixel group when the third independent control part receives the second main control signal;

in a third sub-detection, when the first independent control part receives a third main control signal, transmitting the third control signal to the first pixel group; transmitting the first control signal to the second pixel group when the second independent control part receives the third main control signal; transmitting the second control signal to the third pixel group when the third independent control part receives the third main control signal;

The first control signal is used for conducting the pixel group which emits red light, the second control signal is used for conducting the pixel group which emits green light, and the third control signal is used for conducting the pixel group which emits blue light.

Optionally, the pixel part includes three pixel groups; the display detection comprises three sub-detections;

The pixel driving section is specifically configured to:

in the first sub-detection, driving a first pixel group to emit the red light, a second pixel group to emit the green light and a third pixel group to emit the blue light;

in a second sub-detection, driving the first pixel group to emit the green light, the second pixel group to emit the blue light, and the third pixel group to emit the red light;

In the third sub-detection, the first pixel group is driven to emit the blue light, the second pixel group emits the red light, and the third pixel group emits the green light.

Optionally, each of the pixel groups includes a plurality of sub-pixel groups; the sub-pixel groups in different pixel groups are alternately arranged.

In order to achieve the above object, the present application also provides a pixel driving method, including:

acquiring an instruction for driving the pixel part to display a full-color picture in a display detection; the pixel part comprises at least three pixel groups; the display detection comprises at least three sub-detections;

when the instruction is received, driving each pixel group to respectively emit light with different colors in each sub-detection; and in different sub-detection, driving the same pixel group to emit light with different colors respectively; the different colors of light include at least red, green and blue light.

Obviously, according to the display screen provided by the application, the pixel part is divided into at least three pixel groups, and each pixel group is driven to emit light with different colors in each sub-detection, so that each sub-detection is ensured to be full-color sub-detection; meanwhile, in different sub-detection, the same pixel group is driven to respectively emit light with different colors, so that the pixel part in one display detection can display full-color pictures. Compared with the traditional display screen based on single color sub-detection driving, the full-color picture is displayed in each sub-detection equivalent mode, and the full-color picture is not easy to find out pure color flicker like the traditional display screen; the picture distribution is uniform, and the condition that the solid-color picture has large current on the single-color sub-detection can not occur. The application also provides a pixel driving method which has the beneficial effects.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be 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 embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a conventional active matrix digital pulse width modulated Micro-LED back plate;

FIG. 2 is a schematic diagram of a conventional driving of a single pixel in an active matrix digital pulse width modulated Micro-LED back plane;

FIG. 3 is a flow chart of a conventional pixel driving method;

FIG. 4 is a schematic diagram of each sub-detection light color in a conventional pixel driving method;

FIG. 5 is a flowchart of a pixel driving method according to an embodiment of the present application;

Fig. 6 is a schematic flow chart of a pixel driving method according to an embodiment of the application;

FIG. 7 is a schematic diagram of a first sub-detection luminescent color according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a second sub-detection luminescent color according to an embodiment of the present application;

Fig. 9 is a schematic diagram of a third sub-detection luminescent color according to an embodiment of the application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The light-emitting wavelength and the light-emitting efficiency of the Micro-LED (also called uLED) are related to the current of the Micro-LED, so that the Micro-LED cannot have consistent color gamut performance under different gray scales, and the light-emitting efficiency is low in low gray scale display. Unlike other constant voltage drive Pulse-Amplitude Modulation (PAM) schemes such as LCD (liquid crystal display) and OLED (organic light emitting diode) display, micro-LED displays generally use constant current drive Pulse-Width Modulation (PWM) to control gray scale brightness.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a conventional active matrix digital pulse width modulation Micro-LED back plate. The active matrix digital PWM Micro-LED backboard comprises a pixel part, a digital data driving part, a scanning driving part, a multi-task time-sharing driving part, a light-emitting driving part and a constant current reference part.

Referring to fig. 2, fig. 2 is a schematic diagram illustrating driving of a single pixel in a conventional active matrix digital pulse width modulation Micro-LED back plane. The pixel section includes n rows×m columns of pixels. Each pixel comprises a data storage part, wherein the data storage part is provided with an N-bit static random access memory (Static Random Access Memory, SRAM) which can store the N-bit pixel gray-scale data transmitted by the digital data driving part; and the bias control part can control uLED current magnitude IB of the pixel through bias VB; and the light emission control part may receive the N light emission clock signals em_n transmitted from the light emission driving part to control the light emission time of the pixel. The pixel generates the corresponding light emitting time in one frame, so that the average brightness in one frame can be simulated, and the equivalent brightness is different gray scale brightness.

Referring to fig. 3, fig. 3 is a flow chart of a conventional pixel driving method. The digital data driving part has n×n bits channels and divides a display detection into three sub-detections (R sub-detection, G sub-detection, and B sub-detection) as shown in fig. 4; in the respective sub-detection, the digital data driving section gives red data (R data), green data (G data) and blue data (B data). The scanning driving circuit transmits scanning driving row signals G1-Gm in R sub-detection, G sub-detection and B sub-detection respectively, so that the digital data driving part can write gray scale digital data; the multi-task time-sharing driving part generates multi-task time-sharing signals RGB_MUX <3:1> to the pixels of the pixel part, RGB_MUX <3:1> signals in the R sub-detection, G sub-detection and B sub-detection respectively are correspondingly started, and the corresponding pixels are communicated with uLED for emitting red light, green light and blue light to enable the pixels to emit light, so that full-color display is achieved. Wherein rgb_mux <3:1> is active at low level. The light-emitting driving part sequentially transmits EM_1[1:m ] to EM_N [1:m ] light-emitting clock signals in the R sub-detection, the G sub-detection and the B sub-detection respectively. The constant current reference unit generates a bias voltage VB, and applies different bias voltages VB_ R, VB _G and VB_B in different sub-detection.

The driving method is divided into three single-color sub-detection modes of R sub-detection, G sub-detection and B sub-detection in one detection mode, so that the single-color sub-detection and the flickering condition can be easily perceived by human eyes or when photographing. Therefore, the application provides a display screen, which can avoid flickering caused by single color sub-detection by changing the full color sub-detection into full color sub-detection.

The display screen provided by the embodiment of the application can comprise: a pixel section and a pixel driving section; the pixel driving part is electrically connected with the pixel part; the pixel part comprises at least three pixel groups; the pixel driving section is configured to: acquiring an instruction for driving the pixel part to display a full-color picture in a display detection; the display detection comprises at least three sub-detections; when receiving the instruction, driving each pixel group to emit light with different colors in each sub-detection; and in different sub-detection, the same pixel group is driven to emit light with different colors respectively; the different colors of light include at least red, green and blue light.

It should be noted that, in this embodiment, each pixel group includes one or more pixels. The embodiment is not limited to a specific manner of emitting light by the pixel group, and light may be emitted by providing any one of the light emitting elements at the position of each pixel, for example, one uLED may be provided at the position of each pixel to emit light by uLED.

The embodiment is not limited to the specific type of emitted light, and may include light of other colors in addition to at least red light, green light, and blue light, as long as full-color display can be realized after mixing of light of different colors. The specific number of pixel groups and the specific number of sub-detections are not limited in this embodiment, and it is required to ensure that the specific number of pixel groups and the specific number of sub-detections are consistent with the specific number of emitted light, for example, when the emitted light includes three colors of light, the pixel portion may include three pixel groups, and the display detection may include three sub-detections.

The embodiment is not limited to a specific arrangement manner of different pixel groups, and in order to effectively avoid the split screen effect, each pixel group in the embodiment may include a plurality of sub-pixel groups; the sub-pixel groups in different pixel groups may be alternately arranged. The specific arrangement direction of the pixel groups is not limited in this embodiment, for example, the sub-pixel groups in different pixel groups may be alternately arranged along the row direction; or alternatively arranged in the column direction.

The present embodiment is not limited to a specific manner of adjusting the brightness, and may include, for example, but not limited to, adjusting the brightness by: the pixel driving part comprises a constant current reference part; the constant current reference part is used for: providing different bias voltage values for each pixel group in each sub-detection; and in different sub-detection, providing different bias voltage values to the same pixel group respectively; the different bias values include at least a bias value for controlling red luminance, a bias value for controlling green luminance, and a bias value for controlling blue luminance. It should be noted that, in this embodiment, different bias values are provided for different pixel groups, and the current magnitude of the pixel groups (when the light emitting element is used for emitting light, the current of the pixel groups refers to the current of the light emitting element) can be controlled by the bias values, so as to further realize the adjustment and control of the brightness of different pixel groups. This approach essentially uses constant current drive PWM to control gray scale brightness. By the mode, the display screen can obtain a better display effect.

The present embodiment is not limited to a specific manner of displaying different colors of light, and may include, for example, but not limited to, displaying different colors of light by: the pixel driving part comprises a digital data driving part; the digital data driving part is used for: providing different color data to each pixel group in each sub-detection; and in different sub-detection, providing different color data to the same pixel group respectively; the different color data includes at least red data, green data, and blue data. In this embodiment, different color data is provided to the pixel group, so that the pixel group can display different colors of light.

Further, the pixel driving section in this embodiment may include a scanning driving section; the scan driving section may be configured to: in each sub-detection, a scanning driving column signal which is turned on row by row is transmitted to the pixel part, so that the color data provided by the digital data driving part is written into the pixel part row by row.

Further, the pixel driving section in this embodiment may include a light emission driving section; the light emission driving section may be configured to: in each sub-detection, a light-emitting clock signal is transmitted to the pixel part so as to control the light-emitting time of the pixel part through the light-emitting clock signal and the color data.

The present embodiment is not limited to a specific manner of controlling the pixel group to start light emission, and may include, for example, but not limited to, controlling the pixel group to start light emission by: the pixel driving part comprises a main control part and at least three independent control parts; the main control part is used for: in each sub-detection, transmitting the same main control signal to each independent control part; and in different sub-detection, respectively transmitting different master control signals; the independent control part is used for controlling the pixel groups one by one and is used for: in each sub-detection, when each independent control part receives the same main control signal, different control signals are transmitted to the corresponding pixel group; in different sub-detection, when the same independent control part receives different main control signals, different control signals are respectively transmitted to the corresponding pixel groups; the different control signals include at least a control signal for turning on a pixel group emitting red light, a control signal for turning on a pixel group emitting green light, and a control signal for turning on a pixel group emitting blue light. In this embodiment, after receiving the master control signal transmitted by the master control unit, the independent control unit transmits a control signal for turning on the pixel group to the pixel group so as to turn on the pixel group and make it emit light.

The embodiment is not limited to a specific control manner between the main control portion and the independent control portion, and may be determined according to a specific kind of emitted light, a specific number of pixel groups, and a specific number of sub-detection, for example, but not limited to, the following control manner may be adopted: the pixel part comprises three pixel groups; the display detection comprises three sub-detections; the pixel driving part comprises a main control part and three independent control parts; the independent control part is used for controlling the pixel groups one by one, and is specifically used for: in the first sub-detection, when the first independent control part receives a first main control signal, a first control signal is transmitted to the first pixel group; transmitting a second control signal to the second pixel group when the second independent control part receives the first main control signal; transmitting a third control signal to the third pixel group when the third independent control part receives the first main control signal; in the second sub-detection, when the first independent control part receives the second main control signal, the second control signal is transmitted to the first pixel group; transmitting a third control signal to the second pixel group when the second independent control part receives the second main control signal; transmitting the first control signal to the third pixel group when the third independent control part receives the second main control signal; in the third sub-detection, when the first independent control part receives a third main control signal, transmitting a third control signal to the first pixel group; transmitting the first control signal to the second pixel group when the second independent control part receives the third main control signal; transmitting a second control signal to the third pixel group when the third independent control part receives the third main control signal; the first control signal is used for switching on the pixel group which emits red light, the second control signal is used for switching on the pixel group which emits green light, and the third control signal is used for switching on the pixel group which emits blue light.

The embodiment is not limited to the specific type of the master control signal, and may be a low level signal or a high level signal; and may include both low and high signals. Taking the example that the pixel driving section includes one main control section and three independent control sections: the main control part may include a first output terminal, a second output terminal, and a third output terminal; the three input ends of the first independent control part can be respectively connected with the first output end, the second output end and the third output end; the three input ends of the second independent control part can be respectively connected with the third output end, the first output end and the second output end; the three input ends of the third independent control part can be respectively connected with the second output end, the third output end and the first output end; the low-level signal, the high-level signal and the high-level signal which are respectively output by the first output end, the second output end and the third output end can be used as a first main control signal; the first output end, the second output end and the third output end respectively output a high-level signal, a low-level signal and a high-level signal as second main control signals; and taking the high-level signal, the high-level signal and the low-level signal which are respectively output by the first output end, the second output end and the third output end as a third main control signal.

The embodiment is not limited to the specific type of light emitted by each pixel group in different sub-detection, and may be determined according to the specific type of light emitted, the specific number of pixel groups, and the specific number of sub-detection, for example, but not limited to, the following light emitting manner may be adopted: the pixel part comprises three pixel groups; the display detection comprises three sub-detections; the pixel driving section is specifically configured to: in the first sub-detection, driving the first pixel group to emit red light, the second pixel group to emit green light and the third pixel group to emit blue light; in the second sub-detection, the first pixel group is driven to emit green light, the second pixel group emits blue light, and the third pixel group emits red light; in the third sub-detection, the first pixel group is driven to emit blue light, the second pixel group emits red light, and the third pixel group emits green light.

Based on the embodiment, the pixel part is divided into at least three pixel groups, and each pixel group is driven to emit light with different colors in each sub-detection, so that each sub-detection is ensured to be full-color sub-detection; meanwhile, in different sub-detection, the same pixel group is driven to respectively emit light with different colors, so that the pixel part in one display detection can display full-color pictures. Compared with the traditional display screen based on single color sub-detection driving, the full-color picture is displayed in each sub-detection equivalent mode, and the full-color picture is not easy to find out pure color flicker like the traditional display screen; the picture distribution is uniform, and the condition that the solid-color picture has large current on the single-color sub-detection can not occur.

Referring to fig. 5, fig. 5 is a flowchart of a pixel driving method according to an embodiment of the application, where the pixel driving method may include:

s101: acquiring an instruction for driving the pixel part to display a full-color picture in a display detection; the pixel part comprises at least three pixel groups; the display detection comprises at least three sub-detections;

S102: when receiving the instruction, driving each pixel group to emit light with different colors in each sub-detection; and in different sub-detection, the same pixel group is driven to emit light with different colors respectively; the different colors of light include at least red, green and blue light.

Based on the embodiment, the pixel part is divided into at least three pixel groups, and each pixel group is driven to emit light with different colors in each sub-detection, so that each sub-detection is ensured to be full-color sub-detection; meanwhile, in different sub-detection, the same pixel group is driven to respectively emit light with different colors, so that the pixel part in one display detection can display full-color pictures. Compared with the traditional display screen based on single color sub-detection driving, the full-color picture is displayed in each sub-detection equivalent mode, and the full-color picture is not easy to find out pure color flicker like the traditional display screen; the picture distribution is uniform, and the condition that the solid-color picture has large current on the single-color sub-detection can not occur.

The working principle of the display screen for realizing full-color display is described below with reference to specific examples. Referring to fig. 6 to fig. 9, fig. 6 is a flowchart illustrating a pixel driving method according to an embodiment of the application; FIG. 7 is a schematic diagram of a first sub-detection luminescent color according to an embodiment of the present application; FIG. 8 is a schematic diagram of a second sub-detection luminescent color according to an embodiment of the present application; fig. 9 is a schematic diagram of a third sub-detection luminescent color according to an embodiment of the application.

The present embodiment divides the pixel portion in the X direction into three pixel groups. The first pixel group includes a subpixel group denoted as group <1>; the second pixel group includes a subpixel group denoted as group <2>; the third pixel group includes a subpixel group denoted as group <3>; groups <1>, groups <2> and groups <3> are alternately arranged along the X direction. Pixels in group <1> are connected to VB <1>, pixels in group <2> are connected to VB <2>, and pixels in group <3> are connected to VB <3>.

The constant current reference unit generates three sets of bias signals, and applies different constant current reference bias voltages VB_ R, VB _G and VB_B in different sub-detection. Within the three sub-detects, VB <1> is VB_ R, VB _G and VB_B, respectively; VB <2> is VB_ G, VB _B and VB_R respectively; VB <3> is VB_ B, VB _R and VB_G, respectively.

The control signals RGB_MUX_int <1:3> within a pixel may be turned on uLED for red, green, and blue light, respectively. The control signals RGB_MUX_int <1:3> in the group <1> are connected with external control signals RGB_MUX <1,2,3>, the control signals RGB_MUX_int <1:3> in the group <2> are connected with external control signals RGB_MUX <3,1,2>, and the control signals RGB_MUX_int <1:3> in the group <3> are connected with external control signals RGB_MUX <2,3,1>. Rgb_mux <1,2,3> is active at low level.

In the first sub-detection, RGB_MUX <1,2,3> is respectively low level, high level and high level; in the second sub-detection, RGB_MUX <1,2,3> is high, low and high, respectively; in the third sub-detection, RGB_MUX <1,2,3> is high, and low, respectively.

The scan driving circuit transmits scan driving row signals G1-G m to each sub-detection, so that the data driving portion transmits n×N bits of data S1-N to each sub-detection, respectively, to transmit corresponding data to the pixel portion. Wherein, in the first sub-detection, the pixel of group <1> receives R data, the pixel of group <2> receives G data, and the pixel of group <3> receives B data; in the second sub-detection, the pixels of group <1> receive G data, the pixels of group <2> receive B data, and the pixels of group <3> receive R data; in the third sub-detection, the pixels of group <1> receive B data, the pixels of group <2> receive R data, and the pixels of group <3> receive G data. The light-emitting driving part sequentially transmits EM_1[1:m ] to EM_N [1:m ] light-emitting clock signals in each sub-detection, and the light-emitting clock signals and the color data of the pixel part are combined to generate corresponding light-emitting time.

Under different sub-detection, three groups VB, RGB_MUX and S [ n ] respectively transmit data and control signals with corresponding colors to different groups of pixels, and the three groups VB, RGB_MUX and S [ n ] are matched with each other to achieve time-sharing full-color display.

In each sub-detection, the pixel part is equivalent to display a full-color picture with 1/3 resolution, and after three sub-detection, the human eyes are equivalent to see the full-color picture with the full resolution.

The principles and embodiments of the present application are described herein with reference to specific examples, where each example is a progressive relationship, and each example is mainly described by differences from other examples, and identical and similar parts of each example are mutually referred to. The above description of the embodiments is only for aiding in the understanding of the method of the present application and its core ideas. It will be apparent to those skilled in the art that various changes and modifications can be made to the present application without departing from the principles of the application, and such changes and modifications fall within the scope of the appended claims.

It should also be noted that in this specification, 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 an element.

Claims (10)

1.A display screen, comprising: a pixel section and a pixel driving section; the pixel driving part is electrically connected with the pixel part;

The pixel part comprises at least three pixel groups;

The pixel driving section is configured to:

Acquiring an instruction for driving the pixel part to display a full-color picture in a display detection; the display detection comprises at least three sub-detections;

when the instruction is received, driving each pixel group to respectively emit light with different colors in each sub-detection; and in different sub-detection, driving the same pixel group to emit light with different colors respectively; the different colors of light include at least red, green and blue light.

2. The display screen according to claim 1, wherein the pixel driving section includes a constant current reference section;

The constant current reference part is used for: providing different bias voltage values for each pixel group in each sub-detection; and providing different bias voltage values to the same pixel group in different sub-detection;

the different bias values include at least a bias value for controlling red luminance, a bias value for controlling green luminance, and a bias value for controlling blue luminance.

3. The display screen according to claim 1, wherein the pixel driving section includes a digital data driving section;

The digital data driving section is configured to: providing different color data to each pixel group in each sub-detection; and in different sub-detection, respectively providing different color data for the same pixel group;

the different color data includes at least red data, green data, and blue data.

4. A display screen according to claim 3, wherein the pixel driving section comprises a scan driving section;

The scan driving section is configured to: and in each sub-detection, transmitting a scanning driving column signal which is turned on row by row to the pixel part so as to enable the color data provided by the digital data driving part to be written into the pixel part row by row.

5. A display screen according to claim 3, wherein the pixel driving section comprises a light emission driving section;

The light emission driving section is configured to: and transmitting a light-emitting clock signal to the pixel part in each sub-detection so as to control the light-emitting time of the pixel part through the light-emitting clock signal and the color data set.

6. The display screen according to claim 1, wherein the pixel driving section includes one main control section and at least three independent control sections;

the main control part is used for: transmitting the same main control signal to each independent control part in each sub-detection; and transmitting different master control signals in different sub-detection;

The independent control part controls the pixel groups one by one and is used for: in each sub-detection, when each independent control part receives the same main control signal, different control signals are transmitted to the corresponding pixel group; in different sub-detection, when the same independent control part receives different main control signals, different control signals are respectively transmitted to the corresponding pixel groups;

The different control signals include at least a control signal for turning on the pixel group emitting red light, a control signal for turning on the pixel group emitting green light, and a control signal for turning on the pixel group emitting blue light.

7. The display screen of claim 6, wherein the pixel portion includes three of the pixel groups; the display detection comprises three sub-detections;

The pixel driving part comprises a main control part and three independent control parts;

The independent control part is used for controlling the pixel groups one by one, and is specifically used for:

In the first sub-detection, when the first independent control part receives a first main control signal, a first control signal is transmitted to the first pixel group; transmitting a second control signal to the second pixel group when the second independent control part receives the first main control signal; transmitting a third control signal to a third pixel group when the third independent control part receives the first main control signal;

In the second sub-detection, when the first independent control part receives a second main control signal, the second control signal is transmitted to the first pixel group; transmitting a third control signal to the second pixel group when the second independent control part receives the second main control signal; transmitting the first control signal to the third pixel group when the third independent control part receives the second main control signal;

in a third sub-detection, when the first independent control part receives a third main control signal, transmitting the third control signal to the first pixel group; transmitting the first control signal to the second pixel group when the second independent control part receives the third main control signal; transmitting the second control signal to the third pixel group when the third independent control part receives the third main control signal;

The first control signal is used for conducting the pixel group which emits red light, the second control signal is used for conducting the pixel group which emits green light, and the third control signal is used for conducting the pixel group which emits blue light.

8. The display screen of claim 1, wherein the pixel portion includes three of the pixel groups; the display detection comprises three sub-detections;

The pixel driving section is specifically configured to:

in the first sub-detection, driving a first pixel group to emit the red light, a second pixel group to emit the green light and a third pixel group to emit the blue light;

in a second sub-detection, driving the first pixel group to emit the green light, the second pixel group to emit the blue light, and the third pixel group to emit the red light;

In the third sub-detection, the first pixel group is driven to emit the blue light, the second pixel group emits the red light, and the third pixel group emits the green light.

9. A display screen as claimed in any one of claims 1 to 8, wherein each of the pixel groups comprises a plurality of sub-pixel groups; the sub-pixel groups in different pixel groups are alternately arranged.

10. A pixel driving method, comprising:

acquiring an instruction for driving the pixel part to display a full-color picture in a display detection; the pixel part comprises at least three pixel groups; the display detection comprises at least three sub-detections;

when the instruction is received, driving each pixel group to respectively emit light with different colors in each sub-detection; and in different sub-detection, driving the same pixel group to emit light with different colors respectively; the different colors of light include at least red, green and blue light.