CN113035141A

CN113035141A - Display screen, display screen driving method and device, electronic equipment and storage medium

Info

Publication number: CN113035141A
Application number: CN202110298658.5A
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, a display screen driving method and device, electronic equipment and a storage medium, and belongs to the technical field of pixel driving. The method comprises the following steps: and charging the target pixel unit by determining the target pixel unit to be charged on the TFT substrate, and controlling the backlight module to emit light according to the target color type. Because the lower colored filtering film layer of light transmissivity in the CF base plate has been removed, and adopt the backlight unit that can send the light of multiple colour type to replace the backlight unit that is used for sending white light among the prior art, and according to target colour type, control backlight unit sends out light, thereby make target pixel unit can see through the light of the target colour type that backlight unit sent, thereby realized showing colored picture without needing to pass through colored filtering film layer, the light transmissivity of whole liquid crystal box has been improved, the utilization ratio of backlight unit has been improved, the consumption of backlight unit has been reduced.

Description

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

Technical Field

The application belongs to the technical field of pixel driving, and particularly relates to a display screen, 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. Since the lcd panel does not emit light, the backlight module is required to provide light to the lcd panel. The grid driving circuit is connected with the grid of the TFT switch element on the TFT array substrate so as to control the opening and closing of the TFT switch element; the data driving circuit is connected with the source electrode of the TFT switching element on the TFT array substrate to charge the pixel electrode and generate an electric field, so that the liquid crystal is deflected under the action of the electric field.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: the liquid crystal deflects under the action of an electric field, so that the transmission amount of white light provided by the backlight module is controlled, and the transmitted white light can be filtered into three primary colors of red, green and blue through the color filter films of the red, green and blue on the CF substrate to realize color display. The utilization rate of white backlight provided by the backlight module is low and the power consumption of the backlight module is high due to the low light transmittance of the color filter film.

Disclosure of Invention

An object of the embodiments of the present application is to provide a display screen, a display screen driving method, a display screen driving device, an electronic device, and a storage medium, which can solve the problems in the prior art that the utilization rate of white backlight provided by a backlight module is low and the power consumption of the backlight module is high due to low light transmittance of a color filter film.

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 pixel units distributed in an array, each pixel unit comprises a plurality of first sub-pixel units, or each pixel unit comprises a second sub-pixel unit, and the area occupied by the second sub-pixel unit is equal to the area occupied by the first sub-pixel units;

the backlight module is used for emitting light rays with various color types, and under the condition that the backlight module emits light rays with a target color type, all pixel units on the TFT substrate are used for transmitting the light rays with the target color type.

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

determining all pixel units on the TFT substrate as target pixel units to be charged;

and charging the target pixel unit, and controlling the backlight module to emit light according to the target color type.

In a third aspect, an embodiment of the present application provides a display screen driving apparatus, which is disposed in an electronic device including the display screen, and includes:

the first determination module is used for determining a target sub-pixel unit to be charged on the TFT substrate;

and the charging module is used for charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit.

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 fifth 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, the target sub-pixel unit to be charged on the TFT substrate is determined, the target sub-pixel unit is charged, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit. Because the color filter film layer with lower light transmittance in the CF substrate is removed, the backlight module which can emit light rays with various color types is adopted to replace the backlight module which is used for emitting white light rays in the prior art, and the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit, so that the target sub-pixel unit can transmit the light rays with the target color type emitted by the backlight module, 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.

Drawings

Fig. 1 is a schematic cross-sectional view of a pixel unit of a TFT substrate provided in an embodiment of the present application;

fig. 2 is a top view of a pixel unit of a TFT substrate provided in an embodiment of the present application;

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 according to an embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view of a CF substrate according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a liquid crystal cell according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram illustrating an assembled backlight module and an assembled liquid crystal cell according to an embodiment of the present disclosure;

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 another display driving architecture provided in the embodiments of the present application;

FIG. 10 is a schematic view of a display screen provided in an embodiment of the present application;

FIG. 11 is a schematic diagram of a color gamut of a display screen provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of another display driving architecture provided in the embodiments of the present application;

fig. 13 is a schematic diagram of a display panel driving circuit according to an embodiment of the present application;

FIG. 14 is a flowchart illustrating steps of a method for driving a display panel according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of another display driving architecture provided in the embodiments of the present application;

fig. 16 is a schematic diagram of a display panel driving display provided in an embodiment of the present application;

fig. 17 is a schematic structural diagram of a display panel driving apparatus provided in an embodiment of the present application;

fig. 18 is a schematic hardware structure diagram of an electronic device implementing an embodiment of the present application;

fig. 19 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 pixel unit of a TFT substrate provided in an embodiment of the present application. Fig. 2 is a top view of a 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 according to an embodiment of the present disclosure. 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 pixels 403, G pixels 404, B pixels 405, an Overcoat (OC) layer 406, a gap control material (PS) layer including 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 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 shown in fig. 5, according to an embodiment of the present disclosure. 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 view of a liquid crystal cell according to an embodiment of the present application. 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.

As shown in fig. 7, fig. 7 is a schematic diagram of an assembled backlight module and an assembled liquid crystal cell according to an embodiment of the present disclosure, the backlight module 701 is attached to the back of a liquid crystal, the backlight module 701 is lit 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 as to control the display content.

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 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.

In order to improve the transmissivity of light, the application provides a display screen, and the display screen comprises: the backlight module comprises a CF substrate, a TFT substrate, liquid crystal arranged between the CF substrate and the TFT substrate, and a backlight module;

the CF substrate includes: a black matrix layer, a protective layer and a support layer; the black matrix layer, the protective layer and the supporting layer are sequentially stacked;

the TFT substrate comprises pixel units distributed in an array manner, each pixel unit comprises a plurality of first sub-pixel units, or each pixel unit comprises a second sub-pixel unit, and the area occupied by the second sub-pixel unit is equal to the area occupied by the first sub-pixel units;

the backlight module is used for emitting light rays of various color types, and under the condition that the backlight module emits light rays of a target color type, all pixel units on the TFT substrate are used for transmitting the light rays of the target color type.

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.

Wherein each pixel unit on the TFT substrate comprises a plurality of first sub-pixel units. For example, referring to fig. 8, fig. 8 is a schematic diagram of a display panel driving architecture according to an embodiment of the present application, each pixel unit shown in fig. 8 includes three first sub-pixel units arranged laterally and adjacently, and the pixel array in fig. 8 is a j-row 2-column pixel array. For example, the pixel element 801 shown in fig. 8 includes three first sub-pixel elements, namely a red sub-pixel element 8011, a green sub-pixel element 8012 and a blue sub-pixel element 8013; the pixel unit 802 includes three first sub-pixel units, namely, a red sub-pixel unit 8021, a green sub-pixel unit 8022, and a blue sub-pixel unit 8023. Other pixel units are not described in detail, and the color types of the sub-pixel units in the same column are the same, for example, the sub-pixel units in the same column as the red sub-pixel unit 8011 are red sub-pixel units. In the case that the backlight module emits light of a target color type, all the pixel units on the TFT substrate are configured to transmit the light of the target color type, for example, in the case that the backlight module emits light of a red color type, all the pixel units on the TFT substrate are configured to transmit the light of the red color type, that is, each first sub-pixel unit on the TFT substrate is configured to transmit the light of the red color type.

It should be noted that, alternatively, each pixel unit on the TFT substrate may also include a second sub-pixel unit, and an area occupied by the second sub-pixel unit is equal to an area occupied by the plurality of first sub-pixel units. For example, referring to fig. 9, fig. 9 is a schematic diagram of another display screen driving architecture provided in the embodiment of the present application. Each pixel unit in fig. 9 includes a second sub-pixel unit, for example, the pixel unit indicated by a dashed box 901 includes a second sub-pixel unit, the pixel unit indicated by a dashed box 902 includes a second sub-pixel unit, the pixel array in fig. 9 is a j row and 2 column pixel array, referring to fig. 8 and 9, the row number and the column number of the pixel array in fig. 9 and 8 are the same, the area occupied by one second sub-pixel unit in fig. 9 is equal to the area occupied by three first sub-pixel units in fig. 8, that is, one second sub-pixel unit in fig. 9 may be used to replace three first sub-pixel units constituting one pixel unit in fig. 8. In the case that the backlight module emits light of a target color type, all the pixel units on the TFT substrate are configured to transmit the light of the target color type, for example, in the case that the backlight module emits light of a red color type, all the pixel units on the TFT substrate are configured to transmit the light of the red color type, that is, each of the second sub-pixel units on the TFT substrate is configured to transmit the light of the red color type.

It should be noted that each pixel unit on the TFT substrate may also include a second sub-pixel unit, and an area occupied by the second sub-pixel unit is equal to an area occupied by the plurality of first sub-pixel units, as shown in fig. 9, in this way, compared to fig. 8, since one second sub-pixel unit is used instead of the plurality of first sub-pixel units shown in fig. 8, the data lines are reduced to one third of the data lines shown in fig. 8, and a Demux switch circuit is not required to be laid out, so that a lower frame of the display screen may be compressed, an area occupied by the display screen is increased, and a charging timing sequence is simplified.

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 various 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, all pixel units on the TFT substrate are used for transmitting the light rays of the target color type, so that the display screen can display color pictures without 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.

Optionally, the target color types include: as shown in fig. 10, fig. 10 is a schematic view of a display screen provided in an embodiment of the present application, where the backlight module includes: a red light source assembly 1001, a green light source assembly 1002, and a blue light source assembly 1003;

in the case that the target color type is a red type, all the pixel units are used for transmitting light rays of the red type; in the case that the target color type is a green type, all the pixel units are used for transmitting light of the green type; in the case where the target color type is a blue type, all the pixel units are configured to transmit light of the blue type.

For example, controlling the red light source module 1001 to be in an on state, so that the red light source module 1001 emits light, and controlling the green light source module 1002 and the blue light source module 1003 to be in an off state, so that the backlight module can emit red light, and in the case that the backlight module emits red light, all the pixel units on the TFT substrate are used for transmitting the red light; then, the green light source component 1002 is controlled to be in an open state, the green light source component 1002 emits light, and the red light source component 1001 and the blue light source component 1003 are controlled to be in a closed state, so that the backlight module can emit green light, and under the condition that the backlight module emits the green light, all pixel units on the TFT substrate are used for transmitting the green light; finally, the blue light source assembly 1003 is controlled to be in an on state, the blue light source assembly 1003 emits light, and the red light source assembly 1001 and the green light source assembly 1002 are controlled to be in an off state, so that the backlight module can emit blue light, and under the condition that the backlight module emits the blue light, all pixel units on the TFT substrate are used for transmitting the blue light.

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. 11, fig. 11 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. 11, an area 1101 surrounded by a dotted line is an LED light-emitting color gamut of the backlight module, an area 1102 surrounded 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 area 1101 surrounded by the dotted line is larger than the area 1102 surrounded 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.

The above description describes the composition of the display panel provided in the present application, and next describes the driving method of the display panel provided in the embodiment of the present application, that is, the driving method of the pixels on the TFT substrate. For a clearer understanding of the display panel and the display panel driving method provided by the present application, the display panel driving architecture provided by the present application is described with reference to fig. 12 and 13.

As shown in fig. 12 and fig. 13, fig. 12 is a schematic diagram of another display screen driving architecture provided in the embodiment of the present application, and fig. 13 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. 12. Fig. 12 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 1201 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 fan-out (fanout) wirings 1202, and the driving voltage signal is input to the data lines 1203 by 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. 12 includes a GOA circuit 1204 on the left side and a GOA circuit 1205 on the right side. In addition, the TFT substrate further includes a pixel unit region, a pixel circuit principle of the pixel unit region is as shown in the figure, one pixel unit is composed of a TFT1206 and Cst1207, and Cst1207 represents a storage capacitor.

The pixel array on the TFT substrate is shown in fig. 13, and fig. 13 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 1301, a green sub-pixel cell 1302, and a blue sub-pixel cell 1303, 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 a rectangular frame in the drawings provided in the embodiments of the present application, for example, refer to fig. 13.

Referring to fig. 13, a pixel driving method of the prior art is, for example: the first row of gate lines 1304 in fig. 13 is opened, that is, the first row of gate lines 1304 is scanned to open the gates of the pixels in the pixel row in 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 1305 and the Demux switch 1306 are opened, so that the

Source lines

1307 and 1308 of the driving IC charge all the red sub-pixel units in the pixel row in 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

1307 and 1308 charge all the green sub-pixel units in the pixel row in the first row. 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 switched to be turned on, and the

Source lines

1307 and 1308 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 1309 in fig. 13 is then opened, similar to the charging process for all pixels in the first row, to charge all pixel cells in the second row until the final completion of the charging of all pixel rows on the TFT substrate. That is, the charging process of all the sub-pixel units in all the rows of the pixel rows needs to be frequently switched among the demux switches corresponding to the sub-pixel units of different color types, and the switching of the demux switches needs to consume time, so that the driving efficiency of the pixel driving method is low.

Based on fig. 12 and fig. 13, a display panel driving method provided in an embodiment of the present application, which is applied to the display panel provided in the embodiment of the present application, is described herein. Referring to fig. 14, fig. 14 is a flowchart illustrating steps of a display driving method according to an embodiment of the present application, where the method includes the following steps:

step 1401, all pixel units on the TFT substrate are determined as target pixel units to be charged.

All the pixel cells on the TFT substrate may be determined as target pixel cells to be charged. For example, all the pixel cells in fig. 13 are determined as the target pixel cell.

Step 1402, charging the target pixel unit, and controlling the backlight module to emit light according to the target color type.

The target pixel unit is charged, and the backlight module is controlled to emit light according to the target color type, and the method can be realized by the following steps:

and charging the target pixel unit according to a target scanning sequence for scanning pixel rows of the TFT substrate, and controlling the backlight module to emit light according to the target color type.

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

the first scanning sequence is that the target sub-pixel units on the TFT substrate are scanned downwards line by line from the target sub-pixel units on the first line of pixel rows on the TFT substrate; the second scanning sequence is to scan the target sub-pixel units on the TFT substrate upward row by row starting from the target sub-pixel unit of the last row of pixel rows on the TFT substrate.

Step 1401 and step 1402 are described below in conjunction with fig. 15. As shown in fig. 15, fig. 15 is a schematic diagram of another display screen driving architecture provided in the embodiment of the present application. In fig. 15, one small square indicates one sub-pixel unit, a horizontal line connected to the gates of all sub-pixel units indicated by small squares located in the same row indicates a gate line (gate), and a vertical line connected to the sources of all sub-pixel units indicated by small squares located in the same column indicates a data line. The 3 sub-pixel units adjacently arranged along the row direction of the pixel array form a pixel unit, and the 3 sub-pixel units adjacently arranged along the row direction of the pixel array of one pixel unit sequentially comprise from left to right: red, green and blue sub-pixel units, for example, the sub-pixel unit of the 3n-2 th column in fig. 15 is a red sub-pixel unit, the sub-pixel unit of the 3n-1 th column is a green sub-pixel unit, and the sub-pixel unit of the 3n th column is a blue sub-pixel unit, where n is equal to1 and 2, and the maximum value of n is equal to the number of columns of pixel units on the TFT, and since fig. 15 shows two columns of pixel units, the maximum value of n is equal to 2. The gate line in the odd-numbered row is connected to the GOA circuit on the right side in fig. 15, the gate line in the even-numbered row is connected to the GOA circuit on the left side in fig. 15, for example, the gate line 1501 and the gate line 1503 are connected to the GOA circuit on the right side, and the gate line 1502 and the gate line 1504 are connected to the GOA circuit on the left side. The source electrode of each column of sub-pixel units is connected with a data line.

For example, the target scanning order is a preset first scanning order in which the pixel rows on the TFT substrate are scanned line by line downward starting from the first row of the pixel rows on the TFT substrate, which is defined as a scanning order from top to bottom for convenience of description. Or, the target scanning order is a second scanning order, and the second scanning order is to scan the pixel rows on the TFT substrate line by line upward starting from the last row of pixel rows on the TFT substrate, and the scanning order is defined as a scanning order from bottom to top. And scanning which pixel row, and charging the target pixel unit on the pixel row of the row.

When a scanning sequence from top to bottom is adopted, the gate lines 1501 of the first row of pixel rows are firstly opened, that is, the gate lines of the first row of pixel rows are scanned, and then all the pixel units in the first row of pixel rows are charged; after all the pixel units in the first row of pixel rows are charged, the gate line 1502 of the second row of pixel rows is opened, and all the pixel units in the second row of pixel rows are charged; after all the pixel units in the second row of pixel rows are charged, the grid line 1503 of the third row of pixel rows is started to charge all the pixel units in the third row of pixel rows; and the like until the pixel units in all the pixel rows are charged.

It should be noted that the backlight module may be controlled to emit light of a target color type, and then the target pixel unit may be charged according to a target scanning sequence; or, the target pixel units are charged firstly, and after all the target pixel units on the TFT substrate are charged, the backlight module is controlled to emit light according to 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.

In the embodiment of the application, all the pixel units on the TFT substrate can be charged, and the backlight module is controlled to emit light according to the target color type. For example, if the target color type is a red type, all pixel units on the TFT substrate shown in fig. 15 are charged, and the backlight module is controlled to emit light according to the red type, that is, the backlight module is controlled to emit light of the red type, so that all pixel units transmit the light of the red type emitted by the backlight module, and a red subframe picture is displayed on the display screen. Next, the green color type is used as the target color type, all the pixel units on the TFT substrate in fig. 15 are charged, and the backlight module is controlled to emit light according to the green color type, that is, the backlight module is controlled to emit light of the green color type, so that all the pixel units transmit the light of the green color type emitted by the backlight module, and a green sub-frame image is displayed on the display screen. Finally, the blue type is used as a target color type, all pixel units on the TFT substrate in fig. 15 are charged, and the backlight module is controlled to emit light according to the blue type, that is, the backlight module is controlled to emit light of the blue type, so that all the pixel units transmit the light of the blue type emitted by the backlight module, and a blue sub-frame picture is displayed on the display screen. Therefore, all red, green and blue contents of one frame of picture are displayed on the screen once in a time domain, and a color picture is displayed by being superposed on human eyes.

According to the display screen driving method provided by the embodiment of the application, all the pixel units on the TFT substrate are determined as the target pixel units to be charged, the target pixel units are charged, and the backlight module is controlled to emit light according to the target color types. Because the lower colored filtering film layer of light transmissivity in the CF base plate has been removed, and adopt the backlight unit that can send the light of multiple colour type to replace the backlight unit that is used for sending white light among the prior art, and according to target colour type, control backlight unit sends out light, thereby make target pixel unit can see through the light of the target colour type that backlight unit sent, thereby realized showing colored picture without needing to pass through colored filtering film layer, the light transmissivity of whole liquid crystal box has been improved, the utilization ratio of backlight unit has been improved, the consumption of backlight unit has been reduced.

Optionally, in a case that one pixel unit on the TFT substrate includes a plurality of first sub-pixel units, after the plurality of first sub-pixel units are charged, the gray scales of the plurality of first sub-pixel units are the same, for example, after the red sub-pixel unit 8011, the green sub-pixel unit 8012 and the blue sub-pixel unit 8012 in fig. 8 are charged, the gray scales of the red sub-pixel unit 8011, the green sub-pixel unit 8012 and the blue sub-pixel unit 8012 are the same.

For example, the first sub-pixel units included in one pixel unit are a red sub-pixel unit 8011, a green sub-pixel unit 8012 and a blue sub-pixel unit 8012 as shown in fig. 8. If the target color type is red, the gray scales of the red sub-pixel element 8011, the green sub-pixel element 8012 and the blue sub-pixel element 8013 are the same, and the gray scale is determined by the brightness of the image pixel in the image for which the pixel element 801 is used. . For example, after acquiring luminance data of image pixels in the 1 st row and 1 st column in current image frame data corresponding to the pixel unit in the 1 st row and 1 st column on the display screen, a red driving voltage corresponding to each sub-pixel unit in the 1 st row and 1 st column on the display screen may be determined according to the luminance data of the image pixels in the 1 st row and 1 st column in the current image frame data, so that after each sub-pixel unit of the pixel unit is charged with the red driving voltage, the gray scales of each sub-pixel unit of the pixel unit are the same. By analogy, the driving voltages corresponding to all the pixel units in the first row of pixel rows on the display screen can be determined, and all the pixel units in the first row of pixel rows are charged according to the driving voltages corresponding to all the pixel units, so that the gray scales of the sub-pixel units of each pixel unit are the same. The scheme can realize that red, green and blue sub-pixel units are charged to the red driving voltage, the aperture opening ratio of the red sub-pixel is improved to 3 times that of the red sub-pixel unit only by writing the red driving voltage into the red sub-pixel unit, and the light transmittance is 3 times that of the red sub-pixel unit only by writing the red driving voltage into the red sub-pixel unit. A red driving voltage is written to each pixel unit on the TFT substrate, thereby displaying a red sub-frame.

Similarly, when the target color type is a green color type, the green driving voltage corresponding to the green sub-pixel unit 8012 is determined, and then the green driving voltage is written into the red sub-pixel unit 8011, the green sub-pixel unit 8012 and the blue sub-pixel unit 8013, so that the red, the green, and the blue sub-pixel units are all charged to the green driving voltage, the aperture ratio of the green pixel is increased to 3 times that of writing the green driving voltage into the green sub-pixel unit, and the light transmittance is increased to 3 times that of writing the green driving voltage into the green sub-pixel unit. A green driving voltage is written to each pixel cell on the TFT substrate, thereby displaying a green sub-frame picture. Similarly, a blue driving voltage may be written to each pixel unit on the TFT substrate, thereby displaying a blue sub-frame.

Referring to fig. 16, a schematic diagram of displaying, for example, a red subframe picture will be described. Fig. 16 is a display driving diagram of a display provided in an embodiment of the present application, where a diagram on a left side of a dotted line in fig. 16 corresponds to the display driving architecture provided in fig. 8, and a diagram on a right side of the dotted line in fig. 16 corresponds to the display driving architecture provided in fig. 9. For example, a red drive voltage is written to the sub-pixel units included in all the pixel units on the TFT substrate as shown in fig. 8, and a red sub-frame screen is displayed as a schematic diagram on the left side of the dotted line in fig. 16. A red driving voltage is written in the second sub-pixel units included in all the pixel units on the TFT substrate as shown in fig. 9, and a red sub-frame picture is displayed as a schematic diagram on the right side of the dotted line in fig. 16.

Note that, after that, a green driving voltage is written into the second sub-pixel units included in all the pixel units on the TFT substrate as shown in fig. 9, so that a green sub-frame is displayed; then, as shown in fig. 9, a blue driving voltage is written into the second sub-pixel units included in all the pixel units on the TFT substrate, and a blue sub-frame is displayed, so that a color picture is displayed after the red sub-frame, the green sub-frame, and the blue sub-frame are superimposed.

Optionally, the target pixel unit includes all pixel units on the TFT substrate; step 1202 of charging the target pixel unit and controlling the backlight module to emit light according to the target color type can be implemented by the following steps:

charging all pixel units of each pixel row on the TFT substrate line by line;

controlling the backlight module to emit light according to the target color type under the condition that the number of the target pixel lines is greater than or equal to a first preset number or under the condition that the target pixel units are charged for a first preset time period;

the target pixel row number is the number of pixel rows to which the charged pixel units on the TFT substrate belong.

The charging of all pixel units of each pixel row of the TFT substrate is performed row by row, for example, all pixel units of each pixel row of the TFT substrate are charged row by row according to a scanning sequence from top to bottom, or all pixel units of each pixel row of the TFT substrate are charged row by row according to a scanning sequence from bottom to top.

In addition, in the case where all the pixel cells of each pixel row of the TFT substrate are charged row by row, the charging speed can be increased. For example, referring to fig. 13, each column of sub-pixel units corresponds to one Demux switch, one Demux switch corresponds to one data line, and 6 sub-pixel units in the 1 st row of sub-pixel rows correspond to 6 Demux switches. When a scanning sequence from top to bottom is adopted, all pixel units of a first row of pixel rows corresponding to a first row of gate lines 1304 are scanned first, that is, gates of all pixel units of the first row of pixel rows corresponding to the first row of gate lines 1304 are turned on, then 6 Demux switches corresponding to 6 sub-pixel units of the first row respectively are turned on, that is, 6 data lines corresponding to the 6 Demux switches can be used for charging the 6 sub-pixel units of the first row; after all the sub-pixel units of the first row of pixel rows are charged, all the pixel units of the second row of pixel rows corresponding to the second row of gate lines 1309 are scanned again, that is, the gates of all the pixel units of the second row of pixel rows corresponding to the second row of gate lines 1309 are opened, at this time, since the 6 Demux switches are all in an open state, the Demux switches do not need to be opened again, and all the sub-pixel units of the second row can be charged through the data lines corresponding to the Demux switches. And by analogy, after all the pixel units in the second row of pixel rows are charged, all the pixel units in the third row are charged. Therefore, in the process of charging the pixel units of all the pixel rows, the Demux switches are only required to be turned on once, so that the charging process of all the sub-pixel units of all the pixel rows is realized, and compared with the pixel driving method in the prior art, frequent switching of the Demux switches is avoided, so that the charging speed can be increased, and the driving efficiency of the display screen is improved.

Next, the number of target pixel rows is illustrated, where the number of all pixel rows is N, for example, and the first predetermined number is N, for example

The number of target pixel lines being, for example, equal to

And controlling the backlight module to emit light according to the target color type of the target sub-pixel unit. Alternatively, when the number of target pixel rows is equal to N, for example, the backlight module may be controlled to emit light according to the target color type. And when the number of the target pixel rows is equal to N, the target pixel units of all the pixel rows are charged, and then the backlight module is controlled to emit light according to the target color type.

Because the liquid crystal needs to be driven by voltage to rotate after the pixel unit is charged, the rotation process needs time, and the liquid crystal cannot transmit light before rotating, if the backlight module is controlled to emit light before the liquid crystal rotates, the light emitted by the backlight module is wasted, and the power consumption of the backlight module is wasted, the backlight module is controlled to emit light after the liquid crystal starts to rotate, and therefore the power consumption of the backlight module can be reduced. According to the embodiment of the application, the backlight module is controlled to emit light according to the target color type under the condition that the number of the target pixel lines is greater than or equal to the first preset number or the condition that the target pixel units are charged for the first preset time, so that the power consumption of the backlight module can be reduced. Namely, after the liquid crystal rotates, the backlight module is controlled to emit light, so that the power consumption of the backlight module is reduced.

It should be noted that after the target pixel units of all pixel rows are charged, the backlight module is controlled to emit light according to the target color type of the target sub-pixel unit after a first preset time period, so that it can be ensured that the liquid crystal has been fully rotated in place, and the effect of the displayed image frame can be improved.

The display screen driving method provided by the embodiment of the application can reduce the power consumption of the backlight module by firstly controlling the backlight module to emit the light rays of the target color type after the charging of the target sub-pixel units of partial pixel rows of all the pixel rows is finished or after the charging of the target sub-pixel units of all the pixel rows is finished, and the backlight module is opened at the moment because all the liquid crystals reach the respective stable positions under the driving of the pixel voltage, so that the utilization efficiency of the light rays of the backlight module is higher.

It should be noted that, by adopting the scheme of controlling the backlight module to emit the light of the target color type after the target sub-pixel units of all the pixel rows are charged, the time for the sub-pixel units charged first and the time for the sub-pixel units charged later to display the transmitted light are consistent, and the brightness of the displayed picture content is balanced.

Optionally, before charging the target pixel unit according to the target scanning order of scanning the pixel rows of the TFT substrate in step 1402, the method may further include:

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.

and controlling the grid electrodes of the pixel units of all the pixel rows on the TFT substrate to be in an open state, and writing the target voltage into the pixel units of all the pixel rows so as to ensure that the pixel units of all the pixel rows do not penetrate through the light emitted by the backlight module.

In the embodiment of the present 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 the light emitted by the backlight module, and the pixel units of all the pixel lines display a black picture to initialize the display content of the display screen, thereby ensuring the true effect of the subsequently displayed image frame picture.

Optionally, the target pixel unit is charged, and the backlight module is controlled to emit light according to the target color type, which may be implemented by the following steps:

charging the target pixel unit, and controlling the backlight module to emit light for a second preset time according to the target color type;

and the second preset duration is determined according to the frame rate of the frame image displayed on the display screen.

In order to make the liquid crystal rotate sufficiently, after the sub-frame of the target color type is displayed, a second preset time period may be waited, for example, the second preset time period is, for example, a time period between more than 10 microseconds and less than 20 milliseconds, so that the content of the sub-frame of the target color type can be sufficiently displayed.

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. 17, fig. 17 is a schematic structural diagram of a display panel driving apparatus provided in an embodiment of the present application, where the apparatus 1700 is disposed in an electronic device of a display panel described in the foregoing embodiment, and the apparatus 1700 includes:

a first determining module 1710, configured to determine all pixel units on the TFT substrate as target pixel units to be charged;

the charging module 1720 is configured to charge the target sub-pixel unit, and control the backlight module to emit light according to a target color type of the target sub-pixel unit.

The display screen drive arrangement that this application embodiment provided, because the lower colored filtering film layer of light transmissivity in the CF base plate has been removed, and adopt the backlight unit that can send the light of multiple colour type to replace the backlight unit who is used for sending white light among the prior art, according to the target colour type of target sub-pixel unit, control backlight unit gives out light, thereby make the light of target colour type that target sub-pixel unit can see through backlight unit and send, the light transmissivity of whole liquid crystal box has been improved, the utilization ratio of backlight unit has been improved, the consumption of backlight unit has been reduced.

Optionally, the charging module 1720 is specifically configured to charge the target sub-pixel unit according to a target scanning sequence for scanning a pixel row of the TFT substrate, and control the backlight module to emit light according to a target color type of the target sub-pixel unit.

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

the first scanning sequence is that the target pixel units on the TFT substrate are scanned downwards line by line from the target pixel units on the first line of pixel rows on the TFT substrate; and the second scanning sequence is to scan the target pixel units on the TFT substrate line by line upwards from the target pixel units of the last line of pixel lines on the TFT substrate.

Optionally, the charging module 1720 is specifically configured to charge all pixel units in each pixel row on the TFT substrate row by row;

controlling the backlight module to emit light according to the target color type under the condition that the number of target pixel rows is greater than or equal to a first preset number or under the condition that a first preset time length passes after the target pixel unit is charged;

Optionally, the method further includes:

the acquisition module is used for acquiring a third scanning sequence corresponding to a previous frame image of a current frame image to be displayed;

a second determining module, configured to determine the target scanning order according to the third scanning order, where the target scanning order is opposite to the third scanning order.

Optionally, when one pixel unit on the TFT substrate includes a plurality of first sub-pixel units, after the plurality of first sub-pixel units are charged, the gray scales of the plurality of first sub-pixel units are the same.

Optionally, the control module is configured to control gates of the pixel units in all the pixel rows on the TFT substrate to be in an on state, and write a target voltage into the pixel units in all the pixel rows, so that the pixel units in all the pixel rows do not transmit light emitted by the backlight module.

Optionally, the charging module 1720 is specifically configured to charge the target pixel unit, and control the backlight module to emit light for a second preset time according to the target color type of the target pixel unit;

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. 12, 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. 18, fig. 18 is a schematic diagram of a hardware structure of an electronic device implementing the embodiment of the present application. The electronic device 1800 includes a processor 1801, a memory 1802, and a program or an instruction stored in the memory 1802 and executable on the processor 1801, where the program or the instruction implements the processes of the embodiment of the pixel driving method when executed by the processor 1801, and can achieve the same technical effects, and therefore, the descriptions thereof are omitted here to avoid repetition.

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 1900 includes, but is not limited to: a radio frequency unit 1901, a network module 1902, an audio output unit 1903, an input unit 1904, a sensor 1905, a display unit 1906, a user input unit 1907, an interface unit 1908, a memory 1909, and a processor 1910.

Those skilled in the art will appreciate that the electronic device 1900 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 1910 through a power management system, so that functions such as charging, discharging, and power consumption management are managed through the power management system. The electronic device structure shown in fig. 19 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.

The processor 1910 is configured to determine a target sub-pixel unit to be charged on the TFT substrate;

and charging the target sub-pixel unit, and controlling the backlight module to emit light according to the target color type of the target sub-pixel unit.

The processor 1910 is further configured to charge the target sub-pixel unit according to a target scanning order for scanning a pixel row of the TFT substrate, and control the backlight module to emit light according to a target color type of the target sub-pixel unit.

The processor 1910 is further configured to determine a sub-pixel unit of the same color type as the target sub-pixel unit each time.

The processor 1910 is further configured to sequentially charge the sub-pixel units of the same color type in each pixel row of the TFT substrate;

controlling the backlight module to emit light according to the target color type of the target sub-pixel unit under the condition that the number of target pixel lines is greater than or equal to a first preset number or under the condition that the target sub-pixel unit is charged for a first preset time period;

the target pixel row number is the number of pixel rows to which charged sub-pixel units of the same color type belong on the TFT substrate.

the first scanning sequence is that the target sub-pixel units on the TFT substrate are scanned downwards line by line from the target sub-pixel units on the first line of pixel lines on the TFT substrate; and the second scanning sequence is to scan the target sub-pixel units on the TFT substrate line by line upwards from the target sub-pixel units on the last line of pixel lines on the TFT substrate.

The processor 1910 is further 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.

The processor 1910 is further configured to control gates of the sub-pixel units in all pixel rows on the TFT substrate to be in an open state, and write a target voltage into the sub-pixel units in all pixel rows, so that the sub-pixel units in all pixel rows do not transmit light emitted by the backlight module.

The processor 1910 is further configured to charge the target pixel unit, and control the backlight module to emit light for a second preset time according to the target color type;

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 1904 may include a Graphics Processing Unit (GPU) 19041 and a microphone 19042, and the Graphics Processing Unit 19041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1906 may include a display panel 19061, and the display panel 19061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1907 includes a touch panel 19071 and other input devices 19072. A touch panel 19071, also referred to as a touch screen. The touch panel 19071 may include two parts of a touch detection device and a touch controller. Other input devices 19072 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 1909 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. Processor 1910 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1910.

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;

in the case that the target color type is a red type, all the pixel units are used for transmitting light rays of the red type; in the case that the target color type is a green type, all the pixel units are used for transmitting light of the green type; in the case that the target color type is a blue type, all the 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, wherein the charging the target pixel unit and controlling the backlight module to emit light according to the target color type comprises:

and charging the target pixel unit according to a target scanning sequence for scanning the pixel rows of the TFT substrate, and controlling the backlight module to emit light according to the target color type.

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

the first scanning sequence is that pixel rows on the TFT substrate are scanned downwards line by line from a first row of pixel rows on the TFT substrate; and the second scanning sequence is that the pixel rows on the TFT substrate are scanned upwards line by line from the last line of pixel rows on the TFT substrate.

6. The method of claim 3, wherein the charging the target pixel unit and controlling the backlight module to emit light according to the target color type comprises:

charging all pixel units of each pixel row on the TFT substrate line by line;

7. The method of claim 4, further comprising, prior to charging the target pixel cell according to the target scan order for scanning the pixel rows of the TFT substrate:

8. The method of claim 3, wherein when one pixel unit on the TFT substrate comprises a plurality of first sub-pixel units, the gray scales of the plurality of first sub-pixel units are the same after the plurality of first sub-pixel units are charged.

9. The method of claim 3, further comprising, prior to charging the target pixel cell according to the target scan order for scanning the pixel rows of the TFT substrate:

and controlling the grid electrodes of the pixel units of all the pixel rows on the TFT substrate to be in an open state, and writing a target voltage into the pixel units of all the pixel rows so as to make the pixel units of all the pixel rows not penetrate through the light emitted by the backlight module.

10. The method of claim 3, wherein the charging the target pixel unit and controlling the backlight module to emit light according to the target color type comprises:

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

the first determining module is used for determining all pixel units on the TFT substrate as target pixel units to be charged;

and the charging module is used for charging the target pixel unit and controlling the backlight module to emit light according to the target color type.

12. The apparatus according to claim 11, wherein the charging module is specifically configured to charge the target pixel unit according to a target scanning order for scanning the pixel rows of the TFT substrate, and to control the backlight module to emit light according to the target color type.

13. The apparatus of claim 12, wherein the target scan order is a preset first scan order or a preset second scan order;

14. The apparatus according to claim 11, wherein the charging module is specifically configured to charge all pixel cells of each pixel row on the TFT substrate row by row;

15. The apparatus of claim 12, further comprising:

16. The device according to claim 11, wherein when one pixel unit on the TFT substrate includes a plurality of first sub-pixel units, the gray scales of the plurality of first sub-pixel units are the same after the plurality of first sub-pixel units are charged.

17. The apparatus of claim 11, further comprising:

the control module is used for controlling the grid electrodes of the pixel units of all the pixel rows on the TFT substrate to be in an open state and writing a target voltage into the pixel units of all the pixel rows so as to enable the pixel units of all the pixel rows not to penetrate through light rays emitted by the backlight module;

the target voltage is smaller than a preset threshold voltage, and the preset threshold voltage is determined according to a minimum voltage for controlling the rotation of the liquid crystal.

18. The apparatus of claim 11, wherein the charging module is specifically configured to charge the target pixel unit and control the backlight module to emit light for a second preset time according to a target color type of the target pixel unit.

19. 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 3-10.

20. 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 3-10.