CN113035140A

CN113035140A - Display screen driving method and device, electronic equipment and storage medium

Info

Publication number: CN113035140A
Application number: CN202110297369.3A
Authority: CN
Inventors: 文亮
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-06-25

Abstract

The application discloses a display screen driving method and device, electronic equipment and a storage medium, and belongs to the technical field of display screen driving. The method comprises the following steps: determining n target sub-pixel groups to be charged currently; the N target sub-pixel groups are formed by M sub-pixel units determined from the N sub-pixel units, the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the M sub-pixel units in each target sub-pixel group are different, and the backlight module is controlled to emit monochromatic light of a target color type. Because the method does not change the existing voltage level division, the difficulty of controlling the voltage level is not increased, but the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the m sub-pixel units in each target sub-pixel group are different, the number of the types of colors expressed by each target sub-pixel group is increased, the screen resolution is increased, and the picture display effect is more exquisite.

Description

Display screen driving method and device, electronic equipment and storage medium

Technical Field

The application belongs to the technical field of display screen driving, and particularly relates to a display screen driving method and device, electronic equipment and a storage medium.

Background

A Liquid Crystal Display (LCD) mainly includes a Liquid Crystal Display panel, a gate driving circuit, and a data driving circuit; the liquid crystal display panel includes a Thin Film Transistor (TFT) array substrate, a Color Filter (CF) substrate, and liquid crystal disposed between the two substrates. A pixel unit on the liquid crystal screen is composed of three sub-pixel units of red, green and blue, and each sub-pixel unit can display different brightness levels by a light source behind the sub-pixel unit. And the gray levels represent gradation levels of different brightness from the darkest to the brightest. The more the intermediate levels are, the more exquisite the picture effect can be presented.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: at present, a pixel displays 256 gray scales of 8-bit color depth, namely the pixel divides the brightness into 256 gray scales, the 256 gray scales are distinguished through the rotation angle of liquid crystal corresponding to pixel charging voltage, and 256 voltage levels are controlled to generate 256 gray scales. In order to make the image effect more fine and smooth, the industry further controls the brightness level by dividing the driving voltage into 512 levels and 1024 levels to correspondingly control the rotation angle of the liquid crystal, but this way increases the control difficulty of the voltage level subdivision, so how to realize the more fine and smooth image effect becomes a technical problem to be solved urgently on the basis of not increasing the voltage level.

Disclosure of Invention

An embodiment of the present application provides a display screen driving method, a display screen driving apparatus, an electronic device, and a storage medium, which can solve the problem in the prior art that the control difficulty of voltage level subdivision is increased in order to achieve a finer and finer picture effect.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a display screen, where the display screen includes: the backlight module comprises a CF substrate of a color filter film, a TFT substrate of a thin film transistor, liquid crystal arranged between the CF substrate and the TFT substrate, and a backlight module;

the CF substrate, the TFT substrate and the backlight module are sequentially stacked;

the CF substrate comprises a black matrix layer, a protective layer and a supporting layer which are sequentially stacked;

the TFT substrate comprises N sub-pixel units distributed in an array, the N sub-pixel units form at least one target sub-pixel group, and N is an integer greater than 1;

the backlight module is used for emitting monochromatic light of multiple color types, under the condition that the backlight module emits the monochromatic light of a target color type, the N sub-pixel units on the TFT substrate are used for transmitting the monochromatic light of the target color type, at least two sub-pixel units in m sub-pixel units in each target sub-pixel group are used for displaying different gray scales, and m is an integer greater than or equal to 2.

In a second aspect, an embodiment of the present application provides a display panel driving method, which is applied to an electronic device including the display panel as described above, and the method includes:

determining n target sub-pixel groups to be charged currently; wherein the N target sub-pixel groups are composed of M sub-pixel units determined from the N sub-pixel units;

charging the ith sub-pixel unit in each target sub-pixel group to enable the gray scales of at least two sub-pixel units in the m sub-pixel units in each target sub-pixel group to be different, and controlling the backlight module to emit monochromatic light of a target color type;

wherein M is equal to the ratio of M to N, M is less than or equal to N, N is an integer greater than or equal to1, i is an integer greater than or equal to1 and less than or equal to M, and the target color type is any one of a red type, a green type and a blue type.

In a third aspect, an embodiment of the present application provides a display panel driving apparatus provided in an electronic device including the display panel according to claim 1 or 2, the apparatus including:

the determining module is used for determining n target sub-pixel groups to be charged currently; wherein the N target sub-pixel groups are composed of M sub-pixel units determined from the N sub-pixel units;

the charging module is used for charging the ith sub-pixel unit in each target sub-pixel group so as to enable the gray scales of at least two sub-pixel units in the m sub-pixel units in each target sub-pixel group to be different, and controlling the backlight module to emit monochromatic light of a target color type;

In a fourth aspect, embodiments of the present application provide an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, implement the steps of the method according to the first aspect.

In a fifth aspect, the present embodiments provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.

In a sixth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.

In the embodiment of the application, n target sub-pixel groups to be charged currently are determined; the N target sub-pixel groups are formed by M sub-pixel units determined from the N sub-pixel units, the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the M sub-pixel units in each target sub-pixel group are different, and the backlight module is controlled to emit monochromatic light of a target color type. Because the method does not change the existing voltage level division, the difficulty of controlling the voltage level is not increased, but the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the m sub-pixel units in each target sub-pixel group are different, the number of the types of colors expressed by each target sub-pixel group is increased, the screen resolution is increased, and the picture display effect is more exquisite.

Drawings

Fig. 1 is a schematic cross-sectional view of a sub-pixel unit of a TFT substrate according to an embodiment of the present disclosure;

fig. 2 is a top view of a sub-pixel unit of a TFT substrate according to an embodiment of the present disclosure;

fig. 3 is a schematic view of a TFT substrate according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a CF substrate provided in the prior art;

FIG. 5 is a schematic cross-sectional view of a CF substrate provided by the prior art;

fig. 6 is a schematic view of a liquid crystal cell provided by the prior art;

FIG. 7 is a schematic diagram of a backlight module and a liquid crystal cell assembled according to the prior art;

FIG. 8 is a schematic diagram of a display driving architecture according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a display panel driving circuit according to an embodiment of the present application;

FIG. 10 is a schematic diagram illustrating an assembled backlight module and an assembled liquid crystal cell according to an embodiment of the present disclosure;

FIG. 11 is a flowchart illustrating steps of a method for driving a display panel according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of a display driving architecture according to an embodiment of the present application;

FIG. 13 is a schematic diagram of another display driving architecture provided in the embodiments of the present application;

FIG. 14 is a schematic diagram of another display driving architecture provided in an embodiment of the present application;

FIG. 15 is a schematic diagram of a color gamut of a display screen provided by an embodiment of the present application;

FIG. 16 is a schematic diagram of a pixel cell design provided in the prior art;

fig. 17 is a schematic diagram of a pixel unit design according to an embodiment of the present application;

fig. 18 is a schematic structural diagram of a display panel driving apparatus provided in an embodiment of the present application;

fig. 19 is a schematic hardware structure diagram of an electronic device implementing an embodiment of the present application;

fig. 20 is a schematic hardware configuration diagram of another electronic device for implementing the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The pixel driving method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

To more clearly describe the embodiment of the present invention, a display screen of an electronic device is described. The existing LCD screen manufacturing process mainly includes: manufacturing a TFT substrate, manufacturing a CF substrate, manufacturing a liquid crystal box and assembling a backlight module.

Fig. 1 is a schematic cross-sectional view of a sub-pixel unit of a TFT substrate according to an embodiment of the present disclosure. Fig. 2 is a top view of a sub-pixel unit of a TFT substrate according to an embodiment of the present disclosure.

Referring to fig. 1 and 2, the manufacturing process of the TFT substrate mainly manufactures each functional layer in the following order of layers:

the pixel structure comprises a glass substrate 101, a buffer layer 102, a shading layer 103, a polycrystalline silicon layer 104, a grid insulating layer 105, a grid 106, an interlayer insulating layer 107, a source/drain metal layer 108, a planarization layer 109, a touch wiring layer 110, a PV1 layer 111, an ITO1 common electrode 112, a PV2 layer 113 and an ITO2 pixel electrode 114. Among them, the ITO thin film is an n-type semiconductor material having high conductivity, high visible light transmittance, high mechanical hardness, and good chemical stability. It is the most commonly used thin film material for transparent electrodes of LCDs, solar cells, and other electronic instruments.

The buffer layer 102 is made of SiO2, and is fabricated on the glass substrate to prevent impurities on the glass substrate from diffusing into the thin film transistor. The light shielding layer 103 is made of molybdenum, the chemical symbol of molybdenum is Mo, and the light shielding layer is arranged below the channel of the thin film transistor to block backlight from irradiating the channel, so that the photoproduction leakage current of the transistor is avoided. The polysilicon layer 104 is mainly made of polysilicon with polycrystalline grains, and serves as a transistor semiconductor active layer. The gate insulating layer 105 is mainly made of silicon oxide and serves as a gate dielectric of the thin film transistor. The gate electrode 106 is made of Mo as a gate electrode of the thin film transistor. The interlayer insulating layer 107 is mainly made of silicon oxide and silicon nitride, and serves as an insulating dielectric layer between the metal layers. The source/drain metal layer 108 is mainly made of titanium-aluminum-titanium multilayer metal and serves as a conductive connection layer for the trace and the source and drain electrodes of the thin film transistor. The planarization layer 109 is mainly made of transparent resin and serves as a planarization layer and an interlayer dielectric. The touch wire layer 110 is made of a molybdenum-aluminum-molybdenum multilayer metal and is used as a wire for connecting the touch sensor and the IC. The PV1 layer 111 is a silicon nitride material that acts as an interlayer dielectric and passivation layer. The ITO1 common electrode 112 is made of an indium tin oxide transparent film and serves as a common electrode. The PV2 layer 113 is a silicon nitride material that acts as an interlayer dielectric and passivation layer. The ITO2 pixel electrode 114 is made of an ITO transparent film as a pixel electrode.

Fig. 3 is a schematic view of a TFT substrate shown in fig. 3, and fig. 3 is a schematic view of a TFT substrate provided in an embodiment of the present application. An array is formed of a plurality of thin film transistors including a gate driving circuit, a glass peripheral region, and the like, and one thin film transistor is indicated by a dashed line block 301 in fig. 3.

The manufacturing flow of the CF substrate is shown in fig. 4:

fig. 4 is a schematic structural diagram of a CF substrate provided in the prior art. The CF substrate mainly includes the following layers, and the manufacturing flow thereof is to manufacture each functional layer in the order of the following layers. The method mainly comprises the following steps:

a glass substrate 401, a Black Matrix (BM) layer 402, R (red) pixels 403, G (green) pixels 404, B (blue) pixels 405, a protective layer (OC, Over Coat) layer 406, a gap control material (PS) layer, and the PS layer includes main support posts 407 and auxiliary support posts 408. The R pixel 403, the G pixel 404, and the B pixel 405 belong to a color filter film, the color filter film needs to filter light of a white backlight, and the color filter film of the screen filters light of three colors, red, green, and blue, of the white backlight. The color filter film is arranged in red, green and blue colors in a horizontal direction, the R, G, B colors are divided into three independent points, each point corresponds to a sub-pixel unit on a TFT substrate, three adjacent points R, G, B have different gray scale changes to form a pixel unit, and a plurality of pixel units with different gray scale changes can see a color picture by a space additive color mixing principle.

The black matrix layer 402 is made of carbon-doped resin and is used for shielding the non-light-emitting area. The R pixel 403 is a red pixel region made of red dye-doped resin and transmits red light. The G pixel 404, i.e., the green pixel region, is made of a green dye-doped resin and transmits green light. The B pixel 405 is a blue pixel region, and is made of blue dye-doped resin, and transmits blue light. The OC layer 406 is made of transparent resin and has a planarization effect. The PS layer is made of resin and plays a role in supporting, and the gap control material in the two substrates plays a role in controlling the thickness and uniformity between the substrates. In fig. 4, an R pixel, a G pixel, and a B pixel are sequentially arranged on the right side of the B pixel 405, where a pixel located on the right side of the B pixel 405 and adjacent to the B pixel 405 is an R pixel. By analogy, the R pixel, the G pixel, and the B pixel are sequentially arranged on the right side of the second B pixel from left to right, four groups of the R pixel, the G pixel, and the B pixel are shown in fig. 4, and a black matrix is arranged between every two pixels.

Fig. 5 is a schematic cross-sectional view of a CF substrate as shown in fig. 5, according to the prior art. The CF substrate includes a black matrix layer 501, main support columns 502, auxiliary support columns 503, R pixels 504, G pixels 505, and B pixels 506.

The process of manufacturing a liquid crystal cell is shown in fig. 6:

fig. 6 is a schematic diagram of a liquid crystal cell provided by the prior art. The CF substrate 601 and the TFT substrate 602 are bonded together by sealant 603, and liquid crystal material is filled in the middle, so as to form a liquid crystal cell of the LCD.

The assembly of the backlight module is shown in fig. 7, fig. 7 is a schematic diagram of the backlight module and the assembled liquid crystal cell provided by the prior art, the backlight module 701 is attached to the back of the liquid crystal cell, the backlight module 701 is lighted up to provide white light, the liquid crystal is driven by an electric field to rotate, and the transmission amount of the backlight is controlled, so that the display content is controlled.

In the prior art, the color filter film is required to filter the white light backlight, and the color filter film of the screen is required to filter the red, green and blue light rays of the white light backlight. The color filter film layer is a material layer with the lowest transmittance in the LCD screen, so that the light transmittance of the whole liquid crystal box is low, the utilization rate of the backlight module is low, the backlight power consumption is high, and the existing picture display effect is not fine and smooth enough.

In order to improve light and passed through and realize more exquisite picture display effect, this application provides a display screen, and the display screen includes: the color filter film CF substrate, the thin film transistor TFT substrate, the liquid crystal arranged between the CF substrate and the TFT substrate and the backlight module;

the backlight module is used for emitting monochromatic light of various color types, under the condition that the backlight module emits the monochromatic light of the target color type, the N sub-pixel units on the TFT substrate are used for transmitting the monochromatic light of the target color type, at least two sub-pixel units in m sub-pixel units in each target sub-pixel group are used for displaying different gray scales, and m is an integer greater than or equal to 2.

The CF substrate provided in the embodiments of the present application is introduced here, and the CF substrate provided in the embodiments of the present application includes a black matrix layer, a protective layer, and a supporting layer, which are sequentially stacked. That is, the CF substrate provided in the present application removes the color filter film layer as shown in fig. 5 in the related art, and retains the BM layer, the OC layer, and the PS layer.

The CF substrate and the TFT substrate provided in the embodiment of the present application are bonded together, liquid crystal is filled in the middle of the CF substrate and the TFT substrate to form a liquid crystal cell of a liquid crystal display, then polarizers are bonded to the front and back of the liquid crystal cell, and a backlight module is bonded to the back of the liquid crystal cell, where the backlight module includes an RGB Light Emitting Diode (LED) lamp. The backlight module is matched with a driving method of the TFT, so that the pixel unit on the TFT substrate displays color content.

The display screen provided by the embodiment of the application removes the color filter film layer with lower light transmittance in the CF substrate, and adopts the backlight module capable of emitting light rays of different color types to replace the backlight module used for emitting white light rays in the prior art, and under the condition that the backlight module emits light rays of a target color type, N sub-pixel units on the TFT substrate are used for transmitting light rays of the target color type, so that the display screen can display color pictures without the need of passing through the color filter film layer. The color filter film layer with lower light transmittance in the CF substrate is removed, so that the light transmittance of the whole liquid crystal box is improved, the utilization rate of the backlight module is improved, and the power consumption of the backlight module is reduced. And at least two sub-pixel units in the m sub-pixel units in each target sub-pixel group are used for displaying different gray scales, so that the total color types of picture display are increased, and the picture display effect of the display screen is more exquisite.

Optionally, the target color types include: any one of a red color type, a green color type, and a blue color type, the backlight module includes: a red light source assembly, a green light source assembly, and a blue light source assembly;

under the condition that the target color type is a red type, the N sub-pixel units are used for transmitting light rays of the red type; under the condition that the target color type is a green type, the N sub-pixel units are used for transmitting light rays of the green type; in the case that the target color type is a blue type, the N sub-pixel units are configured to transmit light of the blue type.

The above describes the structure of the backlight module and the liquid crystal cell in the prior art, and the following describes the driving method in the prior art with reference to fig. 8 and 9, and the driving method in the prior art is an 8bit driving method. As shown in fig. 8 and fig. 9, fig. 8 is a schematic diagram of a display screen driving architecture provided in the embodiment of the present application, and fig. 9 is a schematic diagram of a display screen driving circuit provided in the embodiment of the present application.

A display driving architecture provided by the embodiment of the present application is described with reference to fig. 8. Fig. 8 shows a basic structure of a TFT substrate, and a driver Integrated Circuit (IC) is a chip bonded on the TFT glass substrate and used for driving a pixel unit on the TFT substrate, and the chip is referred to as a driver IC. The driving Circuit mainly includes a Flexible Printed Circuit (FPC), a wiring 801 between the FPC and the driving IC, and the driving IC. The FPC is a flexible printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent performance. A driving voltage signal output from the driving IC is connected to a demultiplexing (Demux) switch circuit through a fanout (fanout) trace 802, and is input to a data line 803 by the control of the Demux switch circuit. The Gate driver (GOA) circuit and the Gate (Gate) are controlled by a clock control signal outputted from the driver IC, and the GOA circuit in fig. 8 includes a GOA circuit 804 on the left side and a GOA circuit 805 on the right side. In addition, the TFT substrate further includes a pixel unit region, the pixel circuit principle of the pixel unit region is as shown in the figure, and one pixel unit is composed of a TFT806 and a storage capacitor (storage capacitor) 807.

The pixel array on the TFT substrate is shown in fig. 9, and fig. 9 shows a pixel array with 4 rows and 2 columns, each pixel unit includes a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit which are arranged transversely, and the red sub-pixel unit, the green sub-pixel unit and the blue sub-pixel unit of one pixel unit are arranged sequentially from left to right. For example, the first pixel cell of the first row includes a red word pixel cell 901, a green sub-pixel cell 902, and a blue sub-pixel cell 903, and the second pixel cell of the first row is located at the right side of and adjacent to the first pixel cell of the first row. The driving IC scans each pixel row line by line, and charges the pixel cells of a certain pixel row when the gate line of the pixel row is open, that is, when the pixel row is in a scanning state. In order to distinguish sub-pixel units of different color types, a red sub-pixel unit is filled in a rectangular frame, a green sub-pixel unit is filled in a rectangular frame, and a blue sub-pixel unit is not filled in the rectangular frame in the drawings provided in the embodiments of the present application, for example, refer to fig. 9.

Referring to fig. 9, a pixel driving method of the prior art is, for example: the first row of gate lines 904 in fig. 9 is opened, that is, the first row of gate lines 904 is scanned to open the gates of the pixel units in the pixel row of the first row, and the Demux switches corresponding to all the red sub-pixel units in the first row are opened under the control of the Demux switch control signal, that is, the Demux switch 905 and the Demux switch 906 are opened, so that the

Source lines

907 and 908 of the driving IC charge all the red sub-pixel units in the pixel row of the first row, and the Source lines are referred to as Source lines. Then, the Demux switches corresponding to all the green sub-pixel units in the first row are opened under the control of the Demux switch control signal, that is, the Demux switches corresponding to the red sub-pixel units are switched to be opened, and the

Source lines

907 and 908 charge all the green sub-pixel units in the first row of pixel rows. Then, the Demux switches corresponding to all the blue sub-pixel units in the first row are turned on under the control of the Demux switch control signal, that is, the Demux switches corresponding to the green sub-pixel units are turned on, and the

Source lines

907 and 908 charge all the blue sub-pixel units in the pixel row in the first row. At this point, all pixels in the first row are charged. The second row gate line 909 in fig. 9 is then opened, similar to the charging process for all pixels in the first row, and all pixel cells in the second row are charged until the final completion of the charging of all pixel rows on the TFT substrate.

The color filter film in the prior art needs to filter the backlight of white light, and the color filter film of the screen filters the light of three colors of red, green and blue from the backlight of white light. The color filter film layer is the material layer with the lowest transmittance in the LCD screen, so that the light transmittance of the whole liquid crystal box is low, the utilization rate of the backlight module is low, and the backlight power consumption is high. Moreover, the driving method of the display panel in the prior art is an 8-bit driving method, and the 8-bit driving method is that one pixel displays 256 gray scales of 8-bit color depth, that is, the pixel divides the brightness into 256 levels, and the 256 gray scales are distinguished by the rotation angle of the liquid crystal corresponding to the charging voltage of the pixel electrode, because the red sub-pixel unit forming one pixel unit has 256 gray scales, the green sub-pixel unit has 256 gray scales, and the blue sub-pixel unit has 256 gray scales, the total color type of the display is 256 × 256 × 16777216 colors. In order to make the image display effect of the display screen more exquisite, in the industry at present, the driving voltage is further divided into 512 levels and 1024 levels to correspondingly control the rotation angle of the liquid crystal to control the brightness level, but this way increases the control difficulty of voltage level subdivision, so how to realize the more exquisite image effect on the basis of not increasing the voltage level is called the technical problem to be solved urgently.

In order to achieve a finer picture effect without increasing a voltage level, an embodiment of the present application provides a driving method of a display screen, where the display screen includes: color filter coating CF base plate, thin film transistor TFT base plate, set up in CF base plate with liquid crystal between the TFT base plate, and be used for sending out the backlight unit of the monochromatic light of different colour types, the CF base plate includes: a black matrix layer, a protective layer and a support layer; the display screen comprises N sub-pixel units distributed in an array;

referring to fig. 10, fig. 10 is a schematic diagram of an assembled backlight module and liquid crystal cell provided in the present embodiment, and the backlight module provided in the present embodiment includes a red light source component 1001, a green light source component 1002, and a blue light source component 1003, where the red light source component 1001 is configured to emit monochromatic light of a red type, the green light source component 1002 is configured to emit monochromatic light of a green type, and the blue light source component 1003 is configured to emit monochromatic light of a blue type. Controlling the red light source component 1001 to be in an open state to enable the red light source component 1001 to emit light, and controlling the green light source component 1002 and the blue light source component 1003 to be in a closed state to enable the backlight module to emit red light; controlling the green light source component 1002 to be in an on state to enable the green light source component 1002 to emit light, and controlling the red light source component 1001 and the blue light source component 1003 to be in an off state to enable the backlight module to emit green light; controlling the blue light source assembly 1003 to be in an on state to make the blue light source assembly 1003 emit light, and controlling the red light source assembly 1001 and the green light source assembly 1002 to be in an off state to make the backlight module emit blue light.

The CF substrate provided by the embodiment of the application comprises a black matrix layer, a protective layer and a supporting layer. That is, the present application provides a CF substrate without a color filter film layer as shown in fig. 5 in the prior art. Because the color filter film layer with lower transmittance is removed, the transmission of the light emitted by the backlight module can be improved.

As shown in fig. 10, the CF substrate 1004 and the TFT substrate 1005 according to the embodiment of the present disclosure are bonded together, liquid crystal is filled in the middle of the CF substrate and a liquid crystal cell of the liquid crystal display is formed, polarizers are bonded to the front and back surfaces of the liquid crystal cell, and a backlight module is bonded to the back surface of the liquid crystal cell, where the backlight module includes RGB Light Emitting Diode (LED) lamps.

The backlight module provided by the embodiment of the application is matched with a driving method of a display screen to enable the display screen to display color content, and the total color of the picture display is larger than 16777216 colors, for example, the total color type of the picture display is equal to 512 × 512 × 512, or the total color type of the picture display is equal to 768 × 768 × 768, or the total color type of the picture display is equal to 1024 × 1024 × 1024, so that the finer picture display is realized on the premise of not increasing the voltage level. The following describes a display screen driving method provided by an embodiment of the present application in combination:

in combination with the liquid crystal cell and the backlight module introduced above, an embodiment of the present application provides a display screen driving method. Referring to fig. 11, fig. 11 is a flowchart illustrating steps of a method for driving a display screen according to an embodiment of the present application, where the method can be executed in an electronic device, and the method includes the following steps:

step 1101, determining n target sub-pixel groups to be charged currently; wherein the N target sub-pixel groups are composed of M sub-pixel units determined from the N sub-pixel units.

Step 1102, charging the ith sub-pixel unit in each target sub-pixel group to enable the gray scales of at least two sub-pixel units in the m sub-pixel units in each target sub-pixel group to be different, and controlling the backlight module to emit monochromatic light of the target color type.

For example, the power chip emits a positive voltage to connect the anode of the red light source assembly, the anode of the green light source assembly and the anode of the blue light source assembly, the cathode of the red light source assembly is controlled by the switch element 1, the cathode of the green light source assembly is controlled by the switch element 2, and the cathode of the blue light source assembly is controlled by the light-emitting element 3. The cathode of the red light source component can be connected with a pin 1 of the power supply chip through a switch element 1, the cathode of the green light source component can be connected with a pin 2 of the power supply chip through a switch element 2, and the cathode of the blue light source component can be connected with a pin 3 of the power supply chip through a switch element 3. If the target color type is a red type, a positive voltage emitted by the power chip can be input to the anode of the red light source component, and the light-emitting element 1 is controlled to be turned on, so that the red light source component emits red light, and because the switch element 2 and the switch element 3 are not turned on, the green light source component and the blue light source component cannot emit light, and only the red light source component emits red light, namely the backlight module emits red light. Among them, the switching element 1, the switching element 2, and the switching element 3 may be switching transistors. The display chip can adjust the brightness of the backlight module to be started according to the whole brightness of the content to be displayed.

For a clearer description of the panel driving method provided in the embodiments of the present application, the sub-pixel units and sub-pixel groups distributed in an array on the panel are described herein with reference to fig. 12. For example, referring to fig. 12, fig. 12 is a schematic view of another display panel driving architecture provided in an embodiment of the present application, wherein the display panel includes N sub-pixel units distributed in an array. Each of the sub-pixel groups shown in fig. 12 includes three sub-pixel units arranged laterally adjacently. For example, the sub-pixel group 1201 shown in fig. 12 includes three sub-pixel units, which are a sub-pixel unit 12011, a sub-pixel unit 12012, and a sub-pixel unit 12013; the three sub-pixel units included in the sub-pixel group 1202 are a sub-pixel unit 12021, a sub-pixel unit 12022, and a sub-pixel unit 12023. Other sub-pixel groups are not described by way of example. For example, when the backlight module emits red light, each sub-pixel unit on the display screen is used for transmitting the red light.

It should be noted that each sub-pixel group in the embodiment of the present application may also include other numbers of sub-pixel units, such as 2 sub-pixel units, 4 sub-pixel units, 5 sub-pixel units, and the like.

As shown in fig. 13, fig. 13 is a schematic diagram of still another display screen driving architecture provided in the embodiment of the present application, and fig. 13 shows that each sub-pixel group includes 2 sub-pixel units, for example, sub-pixel group 1301 includes sub-pixel unit 13013 and sub-pixel unit 13012, sub-pixel group 1302 includes sub-pixel unit 13021 and sub-pixel unit 13022, and sub-pixel group 1303 includes sub-pixel unit 13031 and sub-pixel unit 13032.

As shown in fig. 14, fig. 14 is a schematic view of a display panel driving architecture according to another embodiment of the present application, and one sub-pixel group shown in fig. 14 includes 4 sub-pixel units, for example, a sub-pixel group 1401 includes a sub-pixel unit 14011, a sub-pixel unit 14012, a sub-pixel unit 14013, and a sub-pixel unit 14014.

Optionally, before determining the n target subpixel groups to be charged currently in step 1101, the method may further include the following steps:

acquiring a target scanning sequence for scanning sub-pixel rows of the sub-pixel array; the sub-pixel array is an array consisting of N sub-pixel units;

accordingly, determining the n target subpixel groups to be currently charged may be implemented by:

and determining n target sub-pixel groups to be charged currently according to the target scanning sequence.

Optionally, the target scanning order is a preset first scanning order or a preset second scanning order;

the first scanning sequence is that the sub-pixel rows of the sub-pixel array are scanned downwards line by line from the first row of the sub-pixel array; the second scanning order is to scan the sub-pixel rows of the sub-pixel array upward row by row, starting from the last row of sub-pixel rows of the sub-pixel array.

For example, referring to fig. 12, the sub-pixel array in fig. 12 includes 4 rows of sub-pixel rows and 6 columns of sub-pixel columns, and taking the target scanning order as the first scanning order as an example, the gate lines of the first row of sub-pixel rows are scanned first, the sub-pixel units of the first row of sub-pixel rows are charged, then the gate lines of the second row of sub-pixel rows are scanned, the sub-pixel units of the second row of sub-pixel rows are charged, then the gate lines of the third row of sub-pixel rows are scanned, and the sub-pixel units of the third row of sub-pixel rows are charged, and so on until the sub-pixel units of the last row of sub-pixel rows are charged. That is, in the case of initially scanning the sub-pixel rows, 2 sub-pixel groups of the first row of sub-pixel rows are determined as 2 target sub-pixel groups to be currently charged. If the charging of the 2 sub-pixel groups of the first row of sub-pixel rows is completed, the 2 sub-pixel groups of the second row of sub-pixel rows are determined as the 2 target sub-pixel groups to be charged currently.

If the n target sub-pixel groups to be charged currently comprise 2 sub-pixel groups of the first row of sub-pixel rows, charging the ith sub-pixel unit in each sub-pixel group in the 2 sub-pixel groups, wherein i is equal to1, 2 and 3. For example, the sub-pixel unit 12011 is the 1 st sub-pixel unit in the sub-pixel group 1201, the sub-pixel unit 12012 is the 2 nd sub-pixel unit in the sub-pixel group 1201, and the sub-pixel unit 12013 is the 3 rd sub-pixel unit in the sub-pixel group 1201; subpixel unit 12021 is the 1 st subpixel unit in subpixel group 1202, subpixel unit 12022 is the 2 nd subpixel unit in subpixel group 1202, and subpixel unit 12023 is the 3 rd subpixel unit in subpixel group 1202. The charging process for the ith sub-pixel unit in each sub-pixel group of the 2 sub-pixel groups is, for example, the following process:

opening a Demux switch corresponding to the sub-pixel unit 12011 and a Demux switch corresponding to the sub-pixel unit 12021 to charge the sub-pixel unit 12011 through the data line 1203, and charging the sub-pixel unit 12021 through the data line 1204; after the sub-pixel unit 12011 is charged and the sub-pixel unit 12021 is charged, the Demux switch corresponding to the sub-pixel unit 12012 and the Demux switch corresponding to the sub-pixel unit 12022 are turned on, so that the sub-pixel unit 12012 is charged through the data line 1205, and the sub-pixel unit 12022 is charged through the data line 1206; after the charging of the sub-pixel unit 12012 and the charging of the sub-pixel unit 12022 are completed, the Demux switch corresponding to the sub-pixel unit 12013 and the Demux switch corresponding to the sub-pixel unit 12023 are turned on, so that the sub-pixel unit 12013 is charged through the data line 1207, and the sub-pixel unit 12023 is charged through the data line 1208.

And after the charging of the sub-pixel units of the target sub-pixel group of the sub-pixel row in the first row is finished, charging the sub-pixel units of the target sub-pixel group of the sub-pixel row in the second row, and so on until the charging of the sub-pixel units of all the sub-pixel rows is finished. And if the target color type is a red type, displaying a red subframe picture on the display screen. Then, the charging process is adopted to complete the charging of the sub-pixel units of all the sub-pixel rows, and the backlight module is controlled to emit green monochromatic light, so that a green sub-frame picture is displayed on the display screen; and finally, the charging process is still adopted to finish the charging of the sub-pixel units of all the sub-pixel rows, and the backlight module is controlled to emit blue monochromatic light, so that a blue sub-frame picture is displayed on the display screen. After the red subframe picture, the green subframe picture and the blue subframe picture are superposed, the superposed red subframe picture, the superposed green subframe picture and the superposed blue subframe picture act on human eyes to display a frame of color picture.

For the sub-pixel group 1201, if the average gray scale of the sub-pixel group is 250 gray scales, after the 3 sub-pixel units in the sub-pixel group are charged, the gray scales of at least two sub-pixel units in the 3 sub-pixel units in the sub-pixel group are different, for example, the average gray scale of the 3 sub-pixel units in the sub-pixel group 1201 is 250, the gray scale of the sub-pixel unit 12011 is 255, the gray scale of the sub-pixel unit 12012 is 250, and the gray scale of the sub-pixel unit 12013 is 245, so that the gray scale of the sub-pixel group can be adjusted from 0 to 768 gray scales, and the total color category that can be expressed is 768 × 768 × 768 × 768. Alternatively, the average gray scale of 3 sub-pixel units of the sub-pixel group 1201 is 250, the gray scale of the sub-pixel unit 12011 is 255, the gray scale of the sub-pixel unit 12012 is 255, and the gray scale of the sub-pixel unit 12013 is 240, or the gray scales of the sub-pixel group can be adjusted from 0 to 768, and the total color type that can be expressed is 768 × 768 × 768 × 768.

Meanwhile, the gray levels can be smoothly transited, the gray level of the sub-pixel unit 12021 of the sub-pixel group 1202 is 250, the gray level of the sub-pixel unit 12022 is 200, the gray level of the sub-pixel unit 12023 is 150, and the gray level 245 of the sub-pixel unit 12013 is 5 gray levels different from the gray level 250 of the sub-pixel unit 12021. The edge transition can be smoother and the display effect is better.

It should be noted that, in the embodiment of the present application, the display screen is not provided with a color filter film layer, and, under the condition that the backlight module emits monochromatic light of a target color type, all the sub-pixel units in one target sub-pixel group are used, that is, all the sub-pixel units in one target sub-pixel group are charged, and gray scales of the sub-pixel units in one target sub-pixel group are different, so that not only is the transmission amount of the light emitted by the backlight module increased, but also the screen resolution is increased, and thus the displayed picture effect is finer and smoother. Due to the fact that the gray scale of one sub-pixel unit is 0-255, 256 gray scales are provided, and under the condition that all sub-pixel units in one target sub-pixel group are used, by adopting the display screen driving method provided by the embodiment of the application, the gray scale of the target sub-pixel group can reach 3 times (256 multiplied by k), and k is equal to the number of the sub-pixel units in the target sub-pixel group. For example, in the case where 2 sub-pixel units are grouped into one sub-pixel group, the total color category that can be expressed is 3 powers of (256 × 2), i.e., is equal to 512 × 512 × 512; in the case where 3 sub-pixel units are grouped into one sub-pixel group, the total color category that can be expressed is 3 powers of (256 × 3), i.e., equivalent to 768 × 768 × 768; in the case where 4 sub-pixel units are grouped into one sub-pixel group, the total color category that can be expressed is 3 powers (256 × 4), i.e., 1024 × 1024 × 1024.

It should be noted that the backlight module may be controlled to emit monochromatic light of the target color type, and then the ith sub-pixel unit in the target sub-pixel group is charged, or the backlight module may be controlled to emit monochromatic light of the target color type after the ith sub-pixel unit in the target sub-pixel group of all the sub-pixel rows is charged. That is, in the embodiment of the present application, the sub-pixel unit is charged first, and then the backlight module is controlled to emit light, or the backlight module is controlled to emit light first, and then the order of charging the sub-pixel unit first is not limited.

The display screen driving method provided by the embodiment of the application determines n target sub-pixel groups to be charged currently; the N target sub-pixel groups are formed by M sub-pixel units determined from the N sub-pixel units, the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the M sub-pixel units in each target sub-pixel group are different, and the backlight module is controlled to emit monochromatic light of a target color type. Because the method does not change the existing voltage level division, the difficulty of controlling the voltage level is not increased, but the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the m sub-pixel units in each target sub-pixel group are different, the number of the types of colors expressed by each target sub-pixel group is increased, the screen resolution is increased, and the picture display effect is more exquisite.

It should be noted that, because the LED of the backlight module has a relatively wide color gamut, after the LED is filtered by the color filter layer of the CF substrate in the prior art, part of the light is lost, which results in a relatively small color gamut, and the color gamut that can be displayed is reduced. As shown in fig. 15, fig. 15 is a schematic diagram of a color gamut of a display screen provided in an embodiment of the present application. Based on the National Television Standards Committee (NTSC) 1931 color gamut standard, the LED light emitting color gamut of the backlight module is larger than the color gamut after being filtered by the color filter film layer. In fig. 15, a region 1501 enclosed by a dotted line is an LED light-emitting color gamut of the backlight module, a region 1502 enclosed by a solid line is a color gamut of the LED light-emitting color gamut of the backlight module filtered by the color filter layer, and the region 1501 enclosed by the dotted line is larger than the region 1502 enclosed by the solid line, that is, the color gamut filtered by the color filter layer is smaller than the LED light-emitting color gamut of the backlight module. In the display screen provided by the embodiment of the application, the color filter film layer of the CF substrate is removed, so that the displayable color gamut of the display screen can be improved.

Optionally, obtaining the target scanning order for scanning the sub-pixel rows of the sub-pixel array may be implemented by the following steps:

acquiring a third scanning sequence corresponding to a previous frame image of a current frame image to be displayed;

determining a target scanning order according to a third scanning order, wherein the target scanning order is opposite to the third scanning order.

If the third scanning order corresponding to the previous frame of image is, for example, a scanning order from top to bottom, the target scanning order is a scanning order from bottom to top; for example, in the case where the third scanning order corresponding to the previous frame image is a scanning order from bottom to top, the target scanning order is a scanning order from top to bottom. That is, the two scanning orders can be alternated, so as to realize the brightness balance of two adjacent frames.

It should be noted that, if the scanning order of the subframes included in each frame is the same, for example, the scanning order from top to bottom is adopted, since the charging is started first, the luminance above the subframes is greater than the luminance below the subframes, and the luminance of the frame composed of the subframes is unbalanced. In the embodiment of the application, the two scanning sequences are alternately performed, so that the brightness between the frame pictures can be balanced, and the effect of brightness balance is realized.

Optionally, the method may further include the following steps:

and controlling the grid electrodes of the N sub-pixel units to be in an open state, and writing a target voltage into each sub-pixel unit of the N sub-pixel units so that the N sub-pixel units do not transmit the monochromatic light of the target color type emitted by the backlight module.

In the embodiment of the application, the target voltage is less than the minimum voltage capable of rotating the liquid crystal, for example, the minimum voltage capable of rotating the liquid crystal is 0.2 v, and then the target voltage is less than 0.2 v, in this case, the liquid crystal cannot be controlled to rotate, so that the pixel units of all the pixel lines cannot penetrate through light emitted by the backlight module, the pixel units of all the pixel lines display black pictures to initialize the display content of the display screen, and after initialization, the ith sub-pixel unit in the target sub-pixel group is charged, so that the real effect of the subsequently displayed image frame pictures can be ensured.

Optionally, m sub-pixel units in each target sub-pixel group are sequentially and adjacently arranged.

As shown in fig. 16 and 17, fig. 16 is a schematic diagram of a pixel cell design provided in the prior art, and fig. 17 is a schematic diagram of a pixel cell design provided in an embodiment of the present application. One sub-pixel group in the embodiment of the present application may be regarded as one pixel unit.

The pixel cell of the prior art shown in fig. 16 is set to: for example, as shown in fig. 4, a black matrix is arranged between the R pixel 403 and the G pixel 404, and a black matrix is arranged between the G pixel 404 and the B pixel 405. The pixel provided in fig. 17 has the black matrix between the sub-pixel units removed, that is, the black matrix is not provided between two adjacent sub-pixel units in one sub-pixel group. Because a pixel unit of the application can only display the same color in the same time, the problem of light crosstalk of different colors does not exist, so that a black matrix between sub-pixel units in one pixel unit can be removed, the pixel aperture opening ratio is further improved, and the light transmittance is improved. That is, the pixel unit in the present application may eliminate the black matrix between two adjacent sub-pixel units included in the pixel unit.

Optionally, under the condition that the color types of the monochromatic light rays emitted by the backlight module are different, the determined number of the sub-pixel units included in each target sub-pixel group is the same or different.

For example, in the case where the backlight module emits monochromatic light of the red type, 4 sub-pixel units may be grouped into one sub-pixel group, and in the case where the backlight module emits green light, 2 sub-pixel units may be grouped into one sub-pixel group. Or, under the condition that the backlight module emits the monochromatic light of the red type, under the condition that the backlight module emits the monochromatic light of the green type and under the condition that the backlight module emits the monochromatic light of the blue type, the 3 sub-pixel units can be combined into one sub-pixel group.

It should be noted that, in the display screen driving method provided in the embodiment of the present application, the execution main body may be a display screen driving apparatus, or a control module in the display screen driving apparatus for executing the display screen driving method. In the embodiment of the present application, a method for executing display screen driving by a display screen driving apparatus is taken as an example, and the display screen driving apparatus provided in the embodiment of the present application is described.

Referring to fig. 18, fig. 18 is a schematic structural diagram of a display panel driving device provided in an embodiment of the present application, where the display panel includes a CF substrate with a color filter, a TFT substrate with a thin film transistor, a liquid crystal disposed between the CF substrate and the TFT substrate, and a backlight module configured to emit monochromatic light of different color types, and the CF substrate includes: a black matrix layer, a protective layer and a support layer; the display screen comprises N sub-pixel units distributed in an array; the apparatus 1800 is disposed on the electronic device of the display screen of the above embodiment, the apparatus 1800 includes:

a determining module 1810, configured to determine n target subpixel groups to be currently charged; wherein the N target sub-pixel groups are composed of M sub-pixel units determined from the N sub-pixel units;

a charging module 1820, configured to charge the ith sub-pixel unit in each target sub-pixel group, so that the gray scales of at least two sub-pixel units in the m sub-pixel units in each target sub-pixel group are different, and the backlight module is controlled to emit monochromatic light of a target color type;

The display screen driving device provided by the embodiment of the application determines n target sub-pixel groups to be charged currently; the N target sub-pixel groups are formed by M sub-pixel units determined from the N sub-pixel units, the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the M sub-pixel units in each target sub-pixel group are different, and the backlight module is controlled to emit monochromatic light of a target color type. Because the method does not change the existing voltage level division, the difficulty of controlling the voltage level is not increased, but the ith sub-pixel unit in each target sub-pixel group is charged, so that the gray scales of the m sub-pixel units in each target sub-pixel group are different, the number of the types of colors expressed by each target sub-pixel group is increased, the screen resolution is increased, and the picture display effect is more exquisite.

Optionally, the method further includes:

the device comprises an acquisition module, a display module and a control module, wherein the acquisition module is used for acquiring a target scanning sequence for scanning sub-pixel rows of a sub-pixel array; the sub-pixel array is an array consisting of the N sub-pixel units;

the determining module is specifically configured to determine n target subpixel groups to be currently charged according to the target scanning order.

the first scanning sequence is that the sub-pixel rows of the sub-pixel array are scanned downwards line by line from the first row of the sub-pixel array; the second scanning sequence is to scan the sub-pixel rows of the sub-pixel array upward row by row starting from the last row of sub-pixel rows of the sub-pixel array.

Optionally, the obtaining module is specifically configured to obtain a third scanning order corresponding to a previous frame image of the current frame image to be displayed;

determining the target scanning order according to the third scanning order, wherein the target scanning order is opposite to the third scanning order.

Optionally, the method further includes:

and the control module is used for controlling the grid electrodes of the N sub-pixel units to be in an open state and writing a target voltage into each sub-pixel unit of the N sub-pixel units so as to ensure that the N sub-pixel units do not penetrate through the monochromatic light of the target color type emitted by the backlight module.

Optionally, a black matrix is not disposed between two adjacent sub-pixel units in the m sub-pixel units in each target sub-pixel group.

The pixel driving device in the embodiment of the present application may be a device, or may be a component in a terminal, an integrated circuit, or a chip. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.

The pixel driving device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The pixel driving device provided in the embodiment of the present application can implement each process implemented by the pixel driving device in the method embodiment of fig. 11, and is not described herein again to avoid repetition.

Optionally, an electronic device is further provided in an embodiment of the present application, as shown in fig. 19, fig. 19 is a schematic diagram of a hardware structure of an electronic device implementing the embodiment of the present application. The electronic device 1900 includes a processor 1901, a memory 1902, and a program or an instruction stored in the memory 1902 and executable on the processor 1901, where the program or the instruction implements each process of the pixel driving method embodiment when executed by the processor 1901, and can achieve the same technical effect, and therefore, for avoiding repetition, details are not repeated herein.

It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.

The electronic device 2000 includes, but is not limited to: a radio frequency unit 2001, a network module 2002, an audio output unit 2003, an input unit 2004, a sensor 2005, a display unit 2006, a user input unit 2007, an interface unit 2008, a memory 2009, and a processor 2010.

Those skilled in the art will appreciate that the electronic device 2000 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 2010 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. The electronic device structure shown in fig. 20 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description thereof is omitted.

Wherein, the processor 2010 is configured to determine n target subpixel groups to be currently charged; wherein the N target sub-pixel groups are composed of M sub-pixel units determined from the N sub-pixel units;

wherein M is equal to the ratio of M to N, N is an integer greater than 1, N is an integer greater than or equal to1, i is an integer greater than or equal to1 and less than or equal to M, and the target color type is any one of a red type, a green type and a blue type.

A processor 2010 further configured to obtain a target scan order for scanning rows of subpixels of the subpixel array; the sub-pixel array is an array consisting of the N sub-pixel units;

The target scanning sequence is a preset first scanning sequence or a preset second scanning sequence;

The processor 2010 is further configured to obtain a third scanning order corresponding to a previous frame image of the current frame image to be displayed;

The processor 2010 is further configured to control gates of the N sub-pixel units to be in an on state, and write a target voltage into each of the N sub-pixel units, so that the N sub-pixel units do not transmit a monochromatic light of a target color type emitted by the backlight module.

And no black matrix is arranged between two adjacent sub-pixel units in the m sub-pixel units in each target sub-pixel group.

And under the condition that the color types of the monochromatic light rays emitted by the backlight module are different, the determined number of the sub-pixel units in each target sub-pixel group is the same or different.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above noise reduction function control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device in the above embodiment. Readable storage media, including computer-readable storage media, such as Read-Only Memory (ROM), random-access Memory (RAM), magnetic or optical disks, etc.

It should be understood that, in the embodiment of the present application, the input Unit 2004 may include a Graphics Processing Unit (GPU) 20041 and a microphone 20042, and the Graphics processor 20041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 2006 may include a display panel 20061, and the display panel 20061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 2007 includes a touch panel 20071 and other input devices 20072. A touch panel 20071, also referred to as a touch screen. The touch panel 20071 may include two parts, a touch detection device and a touch controller. Other input devices 20072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 2009 may be used to store software programs as well as various data, including but not limited to applications and operating systems. Processor 2010 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc. and a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 2010.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the pixel driving method embodiment, and the same technical effect can be achieved.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A display screen, wherein the display screen comprises: the backlight module comprises a CF substrate of a color filter film, a TFT substrate of a thin film transistor, liquid crystal arranged between the CF substrate and the TFT substrate, and a backlight module;

2. The display screen of claim 1, wherein the target color types comprise: any one of a red color type, a green color type, and a blue color type, the backlight module comprising: a red light source assembly, a green light source assembly, and a blue light source assembly;

under the condition that the target color type is a red type, the N sub-pixel units are used for transmitting light rays of the red type; under the condition that the target color type is a green type, the N sub-pixel units are used for transmitting light rays of the green type; and in the case that the target color type is a blue type, the N sub-pixel units are used for transmitting light of the blue type.

3. A display driving method applied to an electronic device including the display according to claim 1 or 2, the method comprising:

4. The method of claim 3, further comprising, prior to said determining the n target groups of subpixels currently to be charged:

acquiring a target scanning sequence for scanning sub-pixel rows of the sub-pixel array; the sub-pixel array is an array consisting of the N sub-pixel units;

the determining of n target sub-pixel groups to be charged currently includes:

5. The method of claim 4, wherein the target scan order is a preset first scan order or a preset second scan order;

6. The method of claim 4, wherein obtaining a target scan order for scanning rows of subpixels of the subpixel array comprises:

7. The method of claim 3, further comprising:

and controlling the grid electrodes of the N sub-pixel units to be in an open state, and writing a target voltage into each sub-pixel unit of the N sub-pixel units so that the N sub-pixel units do not penetrate through the monochromatic light of the target color type emitted by the backlight module.

8. The method of claim 3, wherein m sub-pixel units in each of the target sub-pixel groups are sequentially disposed adjacent to each other.

9. A display panel driving apparatus provided in an electronic device including the display panel according to claim 1 or 2, the apparatus comprising:

10. The apparatus of claim 9, further comprising:

11. The apparatus of claim 10, wherein the target scan order is a preset first scan order or a preset second scan order;

12. The apparatus according to claim 10, wherein the obtaining module is specifically configured to obtain a third scanning order corresponding to a previous frame image of a current frame image to be displayed;

13. The apparatus of claim 9, further comprising:

14. The apparatus of claim 9, wherein m sub-pixel units in each of the target sub-pixel groups are sequentially disposed adjacent to each other.

15. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the display screen driving method according to any one of claims 3-8.

16. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the display screen driving method according to any one of claims 3 to 8.