CN113296311A

CN113296311A - Display screen, display screen driving method and device, electronic equipment and storage medium

Info

Publication number: CN113296311A
Application number: CN202110297366.XA
Authority: CN
Inventors: 文亮; 李冠恒
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: 2021-08-24

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 steps of determining the sub-pixel units of N target sub-pixel rows as target sub-pixel units to be charged on the TFT substrate, charging the target sub-pixel units, and controlling the backlight module to emit light according to the target color type. Because the colorful filtering 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, so that the target sub-pixel unit can transmit the light rays with the target color type emitted by the backlight module, the display of colorful pictures can be realized without the colorful filtering film layer, the light transmittance of the whole liquid crystal box and the utilization rate of the backlight module are improved, and the power consumption of the backlight module is 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 sub-pixel units of multiple color types arranged along the column direction of the sub-pixel array, and the color types of the sub-pixel units positioned in the same sub-pixel row of the sub-pixel array are the same;

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, the sub-pixel unit with the target color type is 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 sub-pixel units of N rows of target sub-pixel rows as target sub-pixel units to be charged, wherein the color types of the sub-pixel units of the N rows of target sub-pixel rows are the same, and N is an integer greater than or equal to 1;

and charging the target sub-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 determining module is used for determining the sub-pixel units of the N rows of target sub-pixel rows as target sub-pixel units to be charged, wherein the color types of the sub-pixel units of the N rows of target sub-pixel rows are the same, and N is an integer greater than or equal to 1;

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.

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 is charged by determining the sub-pixel units of the target sub-pixel rows in the N rows as the target sub-pixel unit to be 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 view of a display screen provided in an embodiment of the present application;

FIG. 10 is a schematic diagram of a color gamut of a display screen provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of a pixel driving architecture according to an embodiment of the present application;

fig. 12 is a schematic diagram of a pixel driving circuit according to an embodiment of the present disclosure;

FIG. 13 is a flowchart illustrating steps of a method for driving a display panel according to an embodiment of the present disclosure;

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

fig. 15 is a schematic structural diagram of a display panel driving apparatus provided in an embodiment of the present application;

fig. 16 is a schematic hardware structure diagram of an electronic device implementing an embodiment of the present application;

fig. 17 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 pillars 502, auxiliary support pillars 503, and a color filter film layer 504.

The process of manufacturing a liquid crystal cell in the prior art 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.

Fig. 7 shows an assembled schematic view of a liquid crystal cell shown in fig. 6 and a backlight module provided in the prior art, and fig. 7 shows an assembled schematic view of a backlight module and a liquid crystal cell provided in an embodiment of the present application, in which the backlight module 701 is attached to the back of the liquid crystal cell, that is, the backlight module is disposed on a side of the TFT substrate away from the CF substrate, the backlight module 701 is lit up to provide white light, and the liquid crystal is driven by an electric field to rotate, so as to control the amount of backlight transmission, thereby controlling 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 provided by the embodiment of the present application is described herein, and the CF substrate provided by the embodiment of the present application includes a black matrix layer, a protective layer, and a support layer. 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 TFT substrate comprises pixel units distributed in an array mode, each pixel unit comprises sub-pixel units of multiple color types arranged along the column direction of the sub-pixel array, and the color types of the sub-pixel units located in the same sub-pixel row of the sub-pixel array are the same. For example, as shown in fig. 8, fig. 8 is a schematic diagram of a display panel driving architecture provided in the embodiment of the present application, the number of sub-pixel columns of the sub-pixel array shown in fig. 8 is 6, and the color types of 6 sub-pixel units on the same sub-pixel row in the lateral direction are the same. Each pixel unit comprises sub-pixel units of multiple color types arranged along the column direction of the sub-pixel array, and the color types of the sub-pixel units positioned in the same sub-pixel row of the sub-pixel array are the same.

For example, in the case where the plurality of color types include a red type, a green type, and a blue type, each pixel unit in fig. 8 includes one sub-pixel unit of the red type, one sub-pixel unit of the green type, and one sub-pixel unit of the blue type, and for convenience of description, the sub-pixel unit of the red type is referred to as a red sub-pixel unit, the sub-pixel unit of the green type is referred to as a green sub-pixel unit, and the sub-pixel unit of the blue type is referred to as a blue sub-pixel unit. For example, a pixel element represented by a dashed-line box 801 shown in fig. 8, for example, includes one red sub-pixel element 8011, one green sub-pixel element 8012, and one blue sub-pixel element 8013 arranged in the column direction of the sub-pixel array. For example, as shown in fig. 8, the sub-pixel units in the first sub-pixel row of the sub-pixel array are all red sub-pixel units, the sub-pixel units in the second sub-pixel row of the sub-pixel array are all green sub-pixel units, and the sub-pixel units in the third sub-pixel row of the sub-pixel array are all blue 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, the sub-pixel unit with the target color type is used for transmitting the light rays with the target color type. For example, when the backlight module emits red light, if only the red sub-pixel units are charged, all the red sub-pixel units are used for transmitting the red light, and a red sub-frame is displayed on the display screen.

The red driving voltage corresponding to the red sub-pixel unit may be determined according to the current image frame data. For example, after acquiring luminance data of image pixels in the 1 st row and 1 st column in the 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 the red subpixel unit 8011 in the 1 st row and 1 st column of the subpixel row 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. By analogy, the driving voltages corresponding to all red sub-pixel elements in the first row of sub-pixel on the display screen can be determined.

Similarly, in the case that the target color type is a green type, all the green type sub-pixel units of the sub-pixel array are charged, and then a green sub-frame picture is displayed on the display screen. And then all the sub-pixel units of the blue type of the sub-pixel array are charged, and a blue sub-frame picture is displayed on the display screen.

All red, green and blue contents of a frame of picture are displayed on a screen once in a time domain, and a red subframe picture, a green subframe picture and a blue subframe picture are superposed on human eyes to display a frame of color picture.

The display screen that this application embodiment provided has got rid of the lower colored filtering film layer of light transmissivity in the CF base plate to 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 under backlight unit sends the light of target colour type, the sub-pixel unit of target colour type is used for seeing through the light of target colour type to the sub-pixel unit that makes target colour type can see through the light of the target colour type that backlight unit sent, thereby has realized need not to show colored picture through colored filtering 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 color types of the sub-pixel units include: as shown in fig. 9, fig. 9 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 component 901, a green light source component 902, and a blue light source component 903;

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

For example, controlling the red light source module 901 to be in an on state, so that the red light source module 901 emits light, and controlling the green light source module 902 and the blue light source module 903 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, the red sub-pixel unit on the TFT substrate is used for transmitting the red light; then, the green light source component 902 is controlled to be in an on state, so that the green light source component 902 emits light, and the red light source component 901 and the blue light source component 903 are controlled to be in an off state, so that the backlight module can emit green light, and under the condition that the backlight module emits the green light, the green sub-pixel units on the TFT substrate are used for transmitting the green light; finally, the blue light source component 903 is controlled to be in an on state, the blue light source component 903 emits light, and the red light source component 901 and the green light source component 902 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, the blue sub-pixel unit on the TFT substrate is 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. 10, fig. 10 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. 10, an area 1001 surrounded by a dotted line is an LED light-emitting color gamut of the backlight module, an area 1002 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 1001 surrounded by the dotted line is larger than the area 1002 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. In order to more easily understand the driving method of the display panel provided in the present application, a pixel driving method of the prior art is described herein with reference to fig. 10 and 11.

As shown in fig. 11 and 12, fig. 11 is a schematic diagram of a pixel driving architecture according to an embodiment of the present disclosure, and fig. 12 is a schematic diagram of a pixel driving circuit according to an embodiment of the present disclosure.

Fig. 11 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 1101 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 fan-out (fanout) trace 1102, and is input to the data line 1103 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. 11 includes a left GOA circuit 1104 and a right GOA circuit 1105. In addition, the TFT substrate further includes a pixel region, and a pixel circuit in the pixel region is schematically shown and includes TFTs 1106 and Cst1107, where Cst1107 represents a storage capacitor.

Pixel array on TFT substrate as shown in fig. 12, fig. 12 shows a pixel array with 4 rows and 2 columns, one GOA circuit drives a pixel unit on one pixel row, for example, the GOA circuit 1213 is used for driving a pixel unit on the gate line 1204 on the first row. In fig. 12, each pixel row has two pixel units, each pixel unit includes a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit, and the red sub-pixel unit, the green sub-pixel unit, and the blue sub-pixel unit of one pixel unit are sequentially arranged from left to right. For example, the first pixel cell of the first row includes a red word pixel cell 1201, a green sub-pixel cell 1202, and a blue sub-pixel cell 1203. 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 multiple 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. 12.

The prior art pixel driving method is, for example: the first row of gate lines 1204 in fig. 12 is turned on, that is, the first row of gate lines 1204 is scanned to turn on 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 turned on under the control of the Demux switch control signal, that is, the Demux switch 1205 and the Demux switch 1206 are turned on, so that the

Source lines

1207 and 1208 of the driving IC charge all the red sub-pixel units in the pixel row in the first row. Then, the Demux switches corresponding to all the green 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 red sub-pixel units are switched to be turned on, and the

Source lines

1207 and 1208 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

1207 and 1208 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 gate line 1209 of the second row in fig. 12 is then turned on, and all pixel cells of the second row are charged, similar to the charging process for all pixels of the first row, until the final completion of the charging of all pixel rows on the TFT substrate.

Based on fig. 11 and fig. 12, 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. 13, fig. 13 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 1301, determining the sub-pixel units of the N rows of target sub-pixel rows as target sub-pixel units to be charged, wherein the color types of the sub-pixel units of the N rows of target sub-pixel rows are the same, and N is an integer greater than or equal to 1.

The method for determining the target sub-pixel unit to be charged by the sub-pixel units in the target sub-pixel rows in the N rows can be realized by the following steps:

under the condition that the target color type is a red type, determining sub-pixel units of a 3N-2 th row of sub-pixel rows as target sub-pixel units, wherein the N rows of target sub-pixel rows comprise a 3N-2 th row of sub-pixel rows;

or, in the case that the target color type is a green type, determining the sub-pixel units of the sub-pixel row 3N-1 as target sub-pixel units, wherein the target sub-pixel row N comprises the sub-pixel row 3N-1;

or, in the case that the target color type is a blue type, determining the sub-pixel units of the 3 nth row of sub-pixel rows as target sub-pixel units, wherein the N rows of target sub-pixel rows comprise the 3 nth row of sub-pixel rows;

wherein n is more than or equal to1 and less than or equal to m, m is the number of rows of pixel units included in the sub-pixel array, and m and n are integers.

For example, referring to fig. 14, fig. 14 is a schematic diagram of another display screen driving architecture provided in the embodiment of the present application. The 3 sub-pixel units adjacently arranged along the column direction of the sub-pixel array form a pixel unit, and the 3 sub-pixel units adjacently arranged along the column direction of the pixel unit sequentially comprise from top to bottom: red, green and blue sub-pixel units, for example, the sub-pixel unit of the sub-pixel row of the 3n-2 th row in fig. 14 is a red sub-pixel unit, the sub-pixel unit of the sub-pixel row of the 3n-1 th row is a green sub-pixel unit, and the sub-pixel unit of the sub-pixel row of the 3n th row is a blue sub-pixel unit, where n is equal to1, 2, and the maximum value of n is equal to the number of rows of pixel units of the sub-pixel array. And if the target color type is a red type, determining the sub-pixel units of the sub-pixel row 3N-2 as target sub-pixel units, wherein the target sub-pixel row N comprises the sub-pixel row 3N-2. The sub-pixel array shown in fig. 14 includes two rows of pixel units, i.e., the sub-pixel units of the sub-pixel rows in 6 rows constitute two rows of pixel units. N is equal to1 and 2, i.e. the sub-pixel cells of the sub-pixel row 1 and the sub-pixel cells of the sub-pixel row 4 in the row 14 are determined as the target sub-pixel cells, for example, the sub-pixel cells of the sub-pixel row 1 and the sub-pixel row 4 are represented by white, and the sub-pixel cells of the sub-pixel rows of the other 4 are represented by black filling. And if the target color type is a green type, determining the sub-pixel units of the sub-pixel row 2 and the sub-pixel units of the sub-pixel row 5 as target sub-pixel units. And if the target color type is a blue type, determining the sub-pixel units of the sub-pixel row of the 3 rd row and the sub-pixel units of the sub-pixel row of the 6 th row as target sub-pixel units.

Step 1302, charging the target sub-pixel unit, and controlling the backlight module to emit light according to the target color type.

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, and the method can be realized by the following steps:

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

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 switch 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, one path of positive voltage emitted by the power chip can be input to the anode of the red light source component, and the switch element 1 is controlled to be opened, so that the red light source component emits red light, and because the switch element 2 and the switch element 3 are not opened, 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.

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

the first scanning sequence is that the N lines of target sub-pixel rows are scanned downwards line by line from a first line of target sub-pixel rows in the N lines of target sub-pixel rows; and the second scanning sequence is to scan the N lines of target sub-pixel lines upward line by line from the last line of target sub-pixel line in the N lines of target sub-pixel lines.

Step 1301 and step 1302 are described in detail below in conjunction with FIG. 14. As shown in fig. 14, one small square in fig. 14 represents one sub-pixel unit, the horizontal lines connected to the gates of all sub-pixel units represented by small squares located in the same row represent gate lines (gates), and the vertical lines connected to the sources of all sub-pixel units represented by small squares located in the same column represent data lines. For example, the gate line 1401, the gate line 1403, and the gate line 1405 are connected to the switch selection circuit 1407 on the right side, and the gate line 1402, the gate line 1404, and the gate line 1406 are connected to the switch selection circuit 1408 on the left side. The source electrode of each column of sub-pixel units is connected with a data line. It should be noted that the switch selection circuit 1407 and the switch selection circuit 1408 are both a one-input three-output circuit, for example, an output end of a left GOA circuit is connected to an input end of the switch selection circuit 1408, and three output ends of the switch selection circuit 1408 are respectively connected to the gate line 1402, the gate line 1404, and the gate line 1406, so that three gate lines can be controlled by one switch selection circuit, that is, three gate lines can be controlled by one GOA circuit.

For example, the target scanning order is a preset first scanning order, if the target color type is a red type, the target sub-pixel row includes a 1 st row sub-pixel row and a 4 th row sub-pixel row, and if the first scanning order is adopted, the 4 th row sub-pixel row is scanned downwards from the sub-pixel units of the 1 st row target sub-pixel row, which is defined as a scanning order from top to bottom for convenience of description. Or, if the second scanning order is adopted, scanning the sub-pixel row 1 upward from the target sub-pixel row of 4 rows, and defining the scanning order as a scanning order from bottom to top. Scanning which row of sub-pixel rows, charging the sub-pixel units on the row of sub-pixel rows.

When a scanning sequence from top to bottom is adopted, the grid line 1401 of the sub-pixel row 1 is firstly opened, namely, the grid line of the sub-pixel row in the first row is scanned, and then all sub-pixel units in the sub-pixel row in the first row are charged; after all the sub-pixel units in the sub-pixel row in the first row are charged, the gate line 1404 of the sub-pixel row in the 4 th row is opened, and all the sub-pixel units in the sub-pixel row in the 4 th row are charged; only two target subpixel rows are shown in fig. 14, and in practical applications, the process is followed until the charging of the subpixel units in all the target subpixel rows is completed.

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

In the embodiment of the application, the sub-pixel units of the N rows of target sub-pixel rows 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, the red sub-pixel unit of the sub-pixel array shown in fig. 14 is 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 the red sub-pixel unit transmits the light of the red type emitted by the backlight module, and a red sub-frame is displayed on the display screen. Next, the green type is used as the target color type, the green sub-pixel unit of the sub-pixel array in fig. 14 is charged, and the backlight module is controlled to emit light according to the green type, that is, the backlight module is controlled to emit light of the green type, so that the green sub-pixel unit transmits the light of the green type emitted by the backlight module, and a green sub-frame picture is displayed on the display screen. And finally, taking the blue type as a target color type, charging the blue sub-pixel unit of the sub-pixel array shown in fig. 14, and controlling the backlight module to emit light according to the blue type, namely controlling the backlight module to emit light of the blue type, so that the blue sub-pixel unit transmits 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, the sub-pixel units of the N target sub-pixel rows are determined to be the target sub-pixel units to be charged on the TFT substrate, the target sub-pixel units are charged, and the backlight module is controlled to emit light according to the target color type. Because the colorful light filtering 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, so that the target sub-pixel unit can transmit the light rays with the target color type emitted by the backlight module, the display of colorful pictures can be realized without the colorful light filtering film layer, 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.

It should be noted that, since the sub-pixel units of the same color type are disposed in the same sub-pixel, when a certain row of sub-pixel rows is scanned, all the sub-pixel units of the same color type on the row of sub-pixel rows can be charged simultaneously, and the charging speed is increased.

Optionally, in step 1302, charging the target sub-pixel unit, and controlling the backlight module to emit light according to the target color type may be implemented by the following steps:

charging the sub-pixel units of the N lines of target sub-pixel lines line by line;

and under the condition that the number of the charged target sub-pixel rows is greater than or equal to a first preset number or the condition that a first preset time period passes after the sub-pixel units of the N rows of target sub-pixel rows are charged, controlling the backlight module to emit light according to the target color type of the target sub-pixel units.

The sub-pixel units of the N target sub-pixel rows are charged row by row, for example, the sub-pixel units of the N target sub-pixel rows are charged row by row according to a scanning order from top to bottom, or the sub-pixel units of the N target sub-pixel rows are charged row by row according to a scanning order from bottom to top.

It should be noted that, in the case of charging the sub-pixel units of the same color type of the target sub-pixel row by row, the charging speed can be increased. For example, referring to fig. 14, for example, when a scanning sequence from top to bottom is adopted, if the red-type sub-pixel units are charged first, the gate line 1401 of the sub-pixel row 1 is opened, each column of sub-pixel units corresponds to one Demux switch, one Demux switch corresponds to one data line, and 6 sub-pixel units of the sub-pixel row 1 correspond to 6 Demux switches in total. And opening 6 Demux switches corresponding to the 6 sub-pixel units in the sub-pixel row of the 1 st row, namely, charging the red type sub-pixel units in the sub-pixel row of the 1 st row through the 6 data lines corresponding to the 6 Demux switches. After the charging of the red-type sub-pixel units in the sub-pixel row in row 1 is completed, the gate line 1404 is opened, and the red-type sub-pixel units in the sub-pixel row in row 4 are charged, that is, before the red-type sub-pixel units in the sub-pixel row in row 4 are charged, the 6 Demux switches do not need to be turned on again. In practical applications, the number of target sub-pixel rows is large, and the Demux switches only need to be turned on once, that is, all the red sub-pixel units of the sub-pixel array can be charged through the data lines corresponding to the 6 Demux switches. It can be seen that the process of charging the red type sub-pixel cells of all the sub-pixel rows only needs to turn on the Demux switch once. And when the green sub-pixel units are charged subsequently, the green sub-pixel units can be charged only by opening the grid lines corresponding to the green sub-pixel units because the 6 Demux switches are in the open state. Similarly, when the sub-pixel unit of the blue type is charged again, since the 6 Demux switches are in the on state, the sub-pixel unit of the blue type can be charged only by opening the gate line corresponding to the sub-pixel unit of the blue type. Compared with the prior art that frequent switching is required among demux switches corresponding to sub-pixel units of multiple color types in the same row, the pixel driving method in the prior art has low driving efficiency because time is consumed for switching the demux switches. The display screen driving method provided by the embodiment of the application avoids frequent switching of the Demux switch, thereby improving the charging speed and improving the display screen driving efficiency.

Next, the number of charged target sub-pixel rows is illustrated, wherein there are N target sub-pixel rows, and the first predetermined number is, for example, the number

The number of charged target sub-pixel rows is, for example, equal to

And the backlight module can be controlled to emit light according to the target color type. Alternatively, when the number of charged target sub-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 charged target sub-pixel rows is equal to N, the charged target sub-pixel rows mean that the backlight module is controlled to emit light according to the target color type after the sub-pixel units of the N target sub-pixel rows are charged.

Because the liquid crystal needs to be driven by voltage to rotate after the sub-pixel units are 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, so that the backlight module is controlled to emit light after the liquid crystal starts to rotate, and the power consumption of the backlight module can be reduced. According to the embodiment of the application, under the condition that the number of the charged target sub-pixel rows is larger than or equal to the first preset number, or after the sub-pixel units of the N rows of target sub-pixel rows are charged, the backlight module is controlled to emit light according to the target color type, 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 sub-pixel units in the target sub-pixel rows in the N 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 sub-pixel units of the partial target sub-pixel rows of the N rows of target sub-pixel rows is finished or after the charging of the sub-pixel units of the N rows of target sub-pixel rows is finished, and the light ray transmission efficiency is highest after all liquid crystals reach the respective stable positions under the driving of the pixel voltage, at the moment, the backlight module is opened, and the light ray utilization efficiency 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 sub-pixel unit according to the target scanning order of the N rows of target sub-pixel rows in step 1302, the method may further include 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, before charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type in step 1302, the method may further include the following steps:

and controlling the gates of all the sub-pixel units of the sub-pixel array to be in an open state, and writing a target voltage into all the sub-pixel units of the sub-pixel array so as to ensure that all the sub-pixel units do not penetrate through light rays emitted by the backlight module.

For example, if 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, the target voltage is less than 0.2 v, and in this case, the liquid crystal cannot deflect, so that all the sub-pixel units do not transmit the light emitted from the backlight module.

In the embodiment of the application, under the condition that the target voltage is less than the preset threshold voltage, the liquid crystal cannot be controlled to rotate, so that the sub-pixel units of all the pixel rows cannot penetrate through light rays emitted by the backlight module, and the sub-pixel units of all the pixel rows display black pictures so as to initialize the display content of the display screen and ensure the real effect of the subsequently displayed image frame pictures.

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

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. 15, fig. 15 is a schematic structural diagram of a display panel driving apparatus provided in an embodiment of the present application, where the apparatus 1500 is disposed in an electronic device of a display panel described in the foregoing embodiment, and the apparatus 1500 includes:

a first determining module 1510, configured to determine sub-pixel units of N target sub-pixel rows as target sub-pixel units to be charged, where the sub-pixel units of the N target sub-pixel rows have the same color type, and N is an integer greater than or equal to 1;

and a charging module 1520, configured to charge the target sub-pixel unit and control the backlight module to emit light according to the target color type.

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 1520 is specifically configured to charge the target sub-pixel unit according to a target scanning sequence for scanning the N rows of target sub-pixel rows, 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;

Optionally, the first determining module 1510 is specifically configured to determine, when the target color type is a red type, sub-pixel units in a sub-pixel row 3N-2 as the target sub-pixel units, where the target sub-pixel row N includes a sub-pixel row 3N-2;

or, in the case that the target color type is a green type, determining the sub-pixel units of the sub-pixel row of the 3N-1 th row as the target sub-pixel units, wherein the target sub-pixel row of the N rows comprises the sub-pixel row of the 3N-1 th row;

or, in the case that the target color type is a blue type, determining sub-pixel units of a 3 nth row of sub-pixel rows as the target sub-pixel units, where the N row of target sub-pixel rows includes a 3 nth row of sub-pixel rows;

Optionally, the charging module 1520 is specifically configured to charge the sub-pixel units of the N rows of target sub-pixel rows line by line;

and under the condition that the number of the charged target sub-pixel rows is greater than or equal to a first preset number or the condition that a first preset time period passes after the sub-pixel units of the N rows of target sub-pixel rows are charged, controlling the backlight module to emit light according to the target color type.

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, the method further includes:

and the control module is used for controlling the gates of all the sub-pixel units of the sub-pixel array to be in an open state and writing a target voltage into all the sub-pixel units of the sub-pixel array so as to ensure that all the sub-pixel units do not penetrate through the light emitted by the backlight module.

Optionally, the charging module 1520 is specifically configured to charge the target sub-pixel unit, and control the backlight module to emit light for a second preset time according to the target color type of the target sub-pixel unit; and the second preset duration is determined according to the frame rate of the frame image displayed on the display screen.

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 display screen driving device provided in the embodiment of the present application can implement each process implemented by the display screen driving device in the method embodiment of fig. 13, and is not described here again to avoid repetition.

Optionally, an electronic device is further provided in an embodiment of the present application, as shown in fig. 16, fig. 16 is a schematic diagram of a hardware structure of an electronic device implementing the embodiment of the present application. The electronic device 1600 includes a processor 1601, a memory 1602, and a program or an instruction stored in the memory 1602 and executable on the processor 1601, where the program or the instruction implements each process of the pixel driving method embodiment when executed by the processor 1601, and can achieve the same technical effect, and is not described herein again 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 1700 includes, but is not limited to: radio frequency unit 1701, network module 1702, audio output unit 1703, input unit 1704, sensor 1705, display unit 1706, user input unit 1707, interface unit 1708, memory 1709, and processor 1710.

Those skilled in the art will appreciate that the electronic device 1700 may also include a power supply (e.g., a battery) for powering the various components, and that the power supply may be logically coupled to the processor 1710 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The electronic device structure shown in fig. 17 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 1710 is configured to determine sub-pixel units of N target sub-pixel rows as target sub-pixel units to be charged, where the color types of the sub-pixel units of the N target sub-pixel rows are the same, and N is an integer greater than or equal to 1;

The processor 1710 is further configured to charge the target sub-pixel unit according to a target scanning sequence for scanning the N rows of target sub-pixel rows, and control the backlight module to emit light according to a target color type of the target sub-pixel unit.

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

A processor 1710, further configured to determine, as the target sub-pixel unit, a sub-pixel unit of a sub-pixel row 3N-2 when the target color type is a red type, where the N target sub-pixel rows include a sub-pixel row 3N-2;

A processor 1710, further configured to charge the sub-pixel units of the N target sub-pixel rows line by line;

The processor 1710, configured to obtain a third scanning order corresponding to a previous frame image of a 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 1710 is further configured to control gates of all sub-pixel units of the sub-pixel array to be in an open state, and write the target voltage into all sub-pixel units of the sub-pixel array, so that all sub-pixel units do not transmit light emitted by the backlight module.

The processor 1710, configured to charge the target subpixel unit, and control the backlight module to emit light for a second preset time according to the target color type of the target subpixel unit;

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 1704 may include a Graphics Processing Unit (GPU) 17041 and a microphone 17042, and the Graphics Processing Unit 17041 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 1706 may include a display panel 17061, and the display panel 17061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. User input unit 1707 includes a touch panel 17071 and other input devices 17072. A touch panel 17071, also referred to as a touch screen. The touch panel 17071 may include two parts, a touch detection device and a touch controller. Other input devices 17072 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 1709 may be used to store software programs as well as various data, including but not limited to application programs and an operating system. The processor 1710 can integrate an application processor, which primarily handles operating systems, user interfaces, application programs, and the like, 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 1710.

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 color types of the sub-pixel units comprise: red type, blue type and green type, backlight unit includes: a red light source assembly, a green light source assembly, and a blue light source assembly;

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 according to claim 3, wherein the charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type comprises:

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 3, wherein determining the sub-pixel units of the N rows of target sub-pixel rows as the target sub-pixel units to be charged comprises:

determining sub-pixel units of a 3N-2 th sub-pixel row as the target sub-pixel units if the target color type is a red type, wherein the N rows of the target sub-pixel rows comprise a 3N-2 th sub-pixel row;

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

8. The method of claim 4, further comprising, prior to charging the target sub-pixel cell according to the target scan order for scanning the N rows of target sub-pixel rows:

9. The method according to claim 3, further comprising, before the charging the target sub-pixel unit and controlling the backlight module to emit light according to the target color type:

10. The method according to claim 3, wherein the charging the target sub-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:

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

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 first determining module is specifically configured to determine, as the target sub-pixel unit, a sub-pixel unit of a sub-pixel row 3N-2 when the target color type is a red color type, where the N target sub-pixel rows include a sub-pixel row 3N-2;

15. The apparatus according to claim 11, wherein the charging module is specifically configured to charge the sub-pixel units of the N target sub-pixel rows line by line;

16. The apparatus of claim 12, further comprising:

17. The apparatus of claim 11, further comprising:

18. The apparatus of claim 11,

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