CN108766365B - Display panel, driving method thereof and display device - Google Patents
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- CN108766365B CN108766365B CN201810506917.7A CN201810506917A CN108766365B CN 108766365 B CN108766365 B CN 108766365B CN 201810506917 A CN201810506917 A CN 201810506917A CN 108766365 B CN108766365 B CN 108766365B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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Abstract
The invention discloses a display panel, a driving method thereof and a display device. The display panel includes: a display area having a shaped boundary; the display area comprises a plurality of pixels, the pixels are arranged along a first direction to form pixel rows, the pixel rows are arranged along a second direction in the display area, and the first direction is crossed with the second direction; in a plurality of pixel rows adjacent to the shaped boundary: at the edge close to the special-shaped boundary, one pixel row in two adjacent pixel rows is retracted by 1 pixel relative to the other pixel row; the display panel also comprises a backlight source, wherein the backlight source at least comprises a first color light source, a second color light source and a third color light source; the pixels realize mixed color display in a field sequential display mode. The invention can reduce the edge sawtooth sense during display, obviously improve the PPI of the display panel and improve the display effect.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel, a driving method thereof, and a display device.
Background
With the application of display technology in intelligent wearing and other portable electronic devices, the appearance of the display panel has diversified requirements, and a special-shaped display panel appears.
Compared with the conventional display panel, the special-shaped display panel is mainly characterized in that the display area of the special-shaped display panel is in a non-rectangular special shape, such as a circle, a ring, a diamond and the like, and the pixels in the display panel are mostly in a rectangular structure or other more regular structures.
Therefore, it is an urgent need in the art to provide a display panel, a driving method thereof, and a display device, which can improve the display area jaggy phenomenon.
Disclosure of Invention
In view of the above, the present invention provides a display panel, a driving method thereof and a display device, which solve the technical problem of improving the display area sawtooth phenomenon.
In order to solve the above technical problem, the present invention provides a display panel, including: a display area having a shaped boundary; the display area comprises a plurality of pixels, the pixels are arranged along a first direction to form pixel rows, the pixel rows are arranged along a second direction in the display area, and the first direction is crossed with the second direction; in a plurality of pixel rows adjacent to the shaped boundary: at the edge close to the special-shaped boundary, one pixel row in two adjacent pixel rows is retracted by 1 pixel relative to the other pixel row; the display panel also comprises a backlight source, wherein the backlight source at least comprises a first color light source, a second color light source and a third color light source; the pixels realize mixed color display in a field sequential display mode.
Further, in order to solve the above technical problem, the present invention provides a driving method of a display panel, for driving any one of the display panels proposed by the present invention, the display panel including a backlight driving and a display driving, the driving method including:
in the display process of each frame of picture, the backlight drive and the display drive are both started;
in the first field sequence, the backlight drive controls the first color light source to emit light;
in a second field sequence, the backlight drive controls the second color light source to emit light;
in a third field sequence, the backlight drive controls the third color light source to emit light;
in each field sequence, liquid crystal molecules in the display drive control pixels are deflected, and gray scale display of the pixels is realized.
Further, in order to solve the above technical problem, the present invention provides a display device including any one of the display panels.
Compared with the prior art, the display panel, the driving method thereof and the display device of the invention have the following beneficial effects: in the invention, one pixel row in two adjacent pixel rows is contracted by one pixel relative to the other pixel row in the pixel rows adjacent to the special-shaped boundary. In addition, the pixels in the invention realize mixed color display in a field sequential display mode, that is, a single pixel in the invention can realize display of different colors, and in the related art, at least three sub-pixels with different colors are required to form one pixel to realize display of different colors. The invention can obviously improve the PPI of the display panel and improve the display effect.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a partial schematic view of a display panel in the related art;
FIG. 2 is a schematic diagram of an alternative embodiment of a display panel according to an embodiment of the invention;
FIG. 3 is a partial schematic view of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of film layers of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 8 is a schematic top view of an alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an alternative implementation of a display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another alternative embodiment of a display panel according to an embodiment of the present invention;
fig. 11 is a diagram illustrating a film structure of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 12 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the present invention;
FIG. 13 is a flowchart of a method for driving a display panel according to an embodiment of the present invention;
fig. 14 is a flowchart of an alternative embodiment of a display panel driving method according to an embodiment of the present invention;
fig. 15 is a schematic view of a display device according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a partial schematic view of a display panel in the related art. As shown in fig. 1, the display area of the display panel has an irregular boundary Y ', and at a position close to the irregular boundary Y', the pixel rows pH 'are retracted with respect to the adjacent pixel rows pH', that is, the number of the pixel p 'units disposed in the two adjacent pixel rows pH' is different, which results in that the display area forms a plurality of steps T 'close to the irregular boundary Y', and the display panel has a zigzag shape at the edge of the display area when displaying, which affects the display effect, wherein one pixel p 'includes three sub-pixels sp' with different colors. In order to realize normal display of a color picture, the display panel is retracted into one or more pixel units capable of realizing display of different gray scales, one pixel unit needs to comprise at least three sub-pixels with different colors, one or more pixel units are arranged between two adjacent pixel rows on one side close to the special-shaped boundary, so that the two adjacent pixel rows form a larger step, and the saw tooth feeling is very obvious during display. In order to improve the above problem, the inventor proposes a display panel, a driving method thereof and a display device, the display panel is arranged at the edge close to the special-shaped boundary, one pixel line in two adjacent pixel lines is contracted by one pixel relative to the other pixel line, the pixel in the invention realizes color mixing display by means of field sequential display, and compared with the related art, the size of the step formed by two adjacent pixel lines at the side close to the special-shaped boundary can be reduced, and the edge sawtooth feeling during display can be reduced.
Fig. 2 is a schematic diagram of an alternative implementation of the display panel according to the embodiment of the present invention. Fig. 3 is a partial schematic view of a display panel according to an embodiment of the invention.
As shown in fig. 2, the display panel includes: a display area AA, wherein the display area AA is provided with a special-shaped boundary Y; the irregular boundary Y is generally formed by the display area AA to adapt to the shape of the non-display area BA (i.e. the frame of the display panel) of the display panel, where fig. 2 is only schematically shown, the display area AA of the display panel provided by the present invention may also have a plurality of irregular boundaries Y, for example, the corners of the display panel are all arc-shaped corners, or the display area AA of the display panel has arc-shaped notches, etc.
Fig. 3 is a partial schematic view of a display panel, as shown in fig. 3, the display region includes a plurality of pixels p, the pixels p are arranged along a first direction a to form a pixel row pH, the plurality of pixel rows pH are arranged along a second direction b in the display region, and the first direction a intersects with the second direction b; among a plurality of pixel rows pH adjacent to the deformed boundary Y: at the edge close to the irregular boundary Y, one pH value of two adjacent pixel rows is retracted by 1 pixel p relative to the other pH value of the two adjacent pixel rows; the display panel also comprises a backlight source, wherein the backlight source at least comprises a first color light source, a second color light source and a third color light source, and the first color light source, the second color light source and the third color light source are respectively used as one of light sources of three primary colors (red, green and blue); the pixel p realizes mixed color display in a field sequential display mode. The field sequential display is realized according to a time color mixing method, three primary colors of light appear at the same position of the same surface sequentially, and when the time interval is small enough, human eyes can feel that the three primary colors of light appear simultaneously, so that the effect of adding the three primary colors to obtain the color is achieved.
In the invention, in the pixel rows adjacent to the special-shaped boundary, one pixel row in two adjacent pixel rows is contracted by one pixel relative to the other pixel row, and the pixels in the invention realize mixed color display in a field sequential display mode, namely, the single pixel in the invention can realize display of different colors, while the related technology needs at least three sub-pixels with different colors to form one pixel to realize display of different colors. When the display panel is manufactured, the size of the pixel in the display panel can be smaller than that of the pixel in the related technology, the size of the pixel in the display panel provided by the invention can be the same as that of a single sub-pixel in the related technology, and when one pixel in the related technology comprises three sub-pixels, the size of the pixel in the display panel is only one third of that of the pixel in the related technology. In the related art, two adjacent pixel rows are relatively retracted by at least three sub-pixels to form steps, and in the invention, two adjacent pixel rows are relatively retracted by one pixel (the size of a single sub-pixel in the related art) to form steps.
In addition, the Pixels in the display panel realize mixed color display in a field sequential display mode, the size of the Pixels in the display panel can be smaller than that of the Pixels in the related art (for example, the size of the Pixels in the display panel provided by the invention can be the same as that of single sub-Pixels in the related art), the PPI (Pixel Per Inc, pixel density) of the display panel can be obviously improved, and the display effect is improved. When one pixel in the related art includes three sub-pixels, the pixel size in the present invention is only one third of the pixel size in the related art, and the PPI of the display panel provided by the present invention is three times that of the display panel in the related art.
Further, fig. 4 is a schematic diagram of another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 4, in the display panel provided by the embodiment of the present invention, the pixel p has a square shape, and at the edge near the irregular boundary Y, one of the two adjacent pixel rows pH is retracted by 1 pixel p relative to the other pixel row pH. Assuming that a single sub-pixel sp ' in the related art shown in fig. 1 is rectangular, having a length of 90 μm and a width of 30 μm, three sub-pixels sp ' constitute a square pixel p ' having a side length of 90 μm. If the area of a single pixel p in the present invention is the same as that of a single sub-pixel sp' in the related art, the single pixel p in the present invention is a square with a side length of about 52 μm. While the length d 'of the step T' formed by the adjacent two pixel rows pH 'receding one pixel p' with respect to the related art shown in fig. 1 is 90 μm, the length d of the step T formed by the adjacent two pixel rows pH receding one pixel p with respect to the present invention is only 52 μm. Compared with the related art, the method and the device can obviously reduce the size of the step formed by two adjacent pixel rows on one side close to the special-shaped boundary, and can reduce the edge sawtooth feeling during display.
Further, fig. 5 is a schematic diagram of another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 5, at the edge near the deformed boundary Y, one pixel line pH is retracted by 1 pixel p relative to the other pixel line pH in any adjacent two pixel lines pH. The pixel p includes a shaped pixel p1 and a normal pixel p2, the opening area of the shaped pixel p1 is smaller than that of the normal pixel p2, wherein the shaped pixel p1 is adjacent to the shaped boundary Y. In this embodiment, if the opening area of the irregular pixel is smaller than that of the normal pixel, the display luminance of the irregular pixel is smaller than that of the normal pixel, and the edge jaggy feeling during display can be further weakened. The opening area sizes of the special-shaped pixels positioned in different pixel rows can be the same or different.
Further, fig. 6 is a schematic diagram of another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 6, the shaped pixel p1 has a shaped edge B that is adjacent to the shaped boundary Y and extends in the same direction as the shaped boundary Y. In this embodiment, the extending direction of the irregular edge in the irregular pixel is the same as the extending direction of the irregular boundary, and the shape of the boundary of the pixel row formed by arranging the pixels is close to the shape of the irregular boundary on the side close to the irregular boundary, thereby further weakening the edge jaggy feeling at the time of display. The shape of the shaped boundary and the shape of the shaped pixel in fig. 6 are only schematic representations. In practice, the shape of the special-shaped pixel can be designed according to the shape of the special-shaped boundary.
Further, fig. 7 is a schematic diagram of a film layer of another alternative implementation manner of the display panel according to the embodiment of the present invention. Fig. 8 is a schematic top view of an alternative embodiment of a display panel according to an embodiment of the invention. As shown in fig. 7, the display panel includes a first substrate 101, a second substrate 102, a layer 103 of liquid crystal molecules between the first substrate 101 and the second substrate 102; the first substrate comprises a black matrix BM which divides the display area into a plurality of pixels, as shown in fig. 8, the display area is divided into a plurality of pixels P by the black matrix BM, the area surrounded by the black matrix BM is the opening area of the pixels P, when the display panel displays, light can not penetrate through the black matrix BM when penetrating through the first substrate, but can be emitted from the opening area of the pixels P; the second substrate 102 includes a plurality of pixel driving circuits, wherein one pixel includes one pixel driving circuit, and the second substrate may be an array substrate. The array substrate comprises a substrate and a thin film transistor, a common electrode, a pixel electrode, a gate line, a data line and the like formed on the substrate, wherein the thin film transistor, various routing lines and electrodes in the array substrate form a pixel driving circuit. The thin film transistor is used as a switching device of a sub-pixel in the display panel. The grid electrode of the thin film transistor is connected with the grid line of the display panel and is connected with the grid scanning circuit through the grid line, the source electrode of the thin film transistor is connected with the data line and is connected with an integrated circuit chip (IC) through the data line, the drain electrode of the thin film transistor is connected with the pixel electrode, voltage is loaded to the pixel electrode through the data line, an electric field is formed between the pixel electrode and the common electrode, and then liquid crystal molecules of the liquid crystal molecular layer deflect in the electric field, so that whether light is emitted or not is controlled, and display of the display panel is achieved.
The backlight source can be a side-in type light source or a direct type light source.
Fig. 9 is a schematic structural diagram of an alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 9, the display panel includes a first substrate 101, a second substrate 102, and a liquid crystal molecular layer 103. The backlight source of the display panel is a side-in light source, the backlight source includes a light guide plate 104, the light guide plate 104 is located on one side of the second substrate 102 away from the first substrate 101, the first color light source, the second color light source and the third color light source are disposed on the side of the light guide plate 104, the first color light source, the second color light source and the third color light source are all collectively referred to as a light source 105, and only the position of the light source 105 is illustrated in fig. 9. The light guide plate 104 processes the light emitted from the light source 105 and emits the processed light from the surface of the light guide plate 104 near the second substrate 102. The invention does not limit the type, number and specific arrangement of the first color light source, the second color light source and the third color light source in the backlight source at all.
Fig. 10 is a schematic structural diagram of another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 10, the display panel includes a first substrate 101, a second substrate 102, and a liquid crystal molecular layer 103. When the backlight source of the display panel is a direct-type light source, the first color light source 1051, the second color light source 1052 and the third color light source 1053 are arranged on the side of the second substrate 102 away from the first substrate 101, and the backlight source may further include a reflective sheet, a diffusion sheet and other structures, which are not shown in the figure. Fig. 10 is a schematic representation, and the present invention does not limit the types, numbers, and specific arrangements of the first color light sources, the second color light sources, and the third color light sources in the backlight source.
Further, fig. 11 is a film layer structure diagram of another alternative implementation of the display panel according to the embodiment of the present invention. As shown in fig. 11, the first substrate 101 further includes a color resistance layer 1011, and the color resistance layer 1011 includes a plurality of transparent color resistances Z, where one pixel p includes one transparent color resistance Z. When the display panel displays, after the light penetrates through the liquid crystal molecular layer 103, the light penetrates through the first substrate 101 from the region where the transparent color resists Z of the first substrate 101 are located, and then the color displayed by the pixel P is emitted and displayed on the surface of the display panel. The transparent color resistor Z is made of an optical transparent material, the light penetration rate is high, the light loss is small, the display effect of the display panel is not affected, when light emitted by the first color light source penetrates through the transparent color resistor Z, the pixel p displays a first color, when light emitted by the second color light source penetrates through the transparent color resistor Z, the pixel p displays a second color, and when light emitted by the third color light source penetrates through the transparent color resistor Z, the pixel p displays a third color. The first substrate comprises a black matrix, a film layer where the black matrix is located is provided with a plurality of openings (namely opening areas of pixels), a color resistor is arranged in the first substrate, the transparent color resistor is located in the opening areas of the pixels, the flatness of the first substrate is improved due to the arrangement of the transparent color resistor, and meanwhile the mechanical strength of the module can be improved.
Further, the second substrate further comprises a common electrode layer, and the common electrode layer comprises a plurality of block-shaped common electrodes; in the touch control stage, the block-shaped common electrodes are reused as touch control electrodes. Fig. 12 is a schematic top view of another alternative embodiment of a display panel according to an embodiment of the invention. As shown in fig. 12, the display panel includes a plurality of block-shaped common electrodes 1021, where the block-shaped common electrodes 1021 may be rectangular as shown in fig. 12, or have other shapes, any two block-shaped common electrodes are insulated from each other, each block-shaped common electrode is correspondingly connected to at least one touch electrode trace, and each block-shaped common electrode is connected to the touch driving circuit through the touch electrode trace. In the display stage, a common voltage is applied to each of the block-shaped common electrodes, and an electric field for driving the liquid crystal molecules in the liquid crystal layer to rotate is formed between the block-shaped common electrode and a pixel electrode provided in a pixel. In the touch control stage, touch control signals are respectively applied to the block-shaped common electrodes, and the touch position is detected by detecting the self-capacitance change of each block-shaped common electrode transmitted to the touch control driving circuit.
Further, the present invention also provides a driving method of a display panel, which is used for driving the display panel provided in any embodiment of the present invention, where the display panel includes a backlight driver and a display driver, fig. 13 is a flowchart of the driving method of the display panel provided in the embodiment of the present invention, and as shown in fig. 13, the driving method includes:
step S101: in the display process of each frame of picture, the backlight drive and the display drive are both started, the backlight drive can control the light source in the backlight source to emit light after being started, and the display drive can control the liquid crystal molecules in the pixels to deflect after being started;
step S102: in the first field sequence, the backlight drive controls the first color light source to emit light, so that the first color light source emits first color light, and the pixel displays the first color after the first color light penetrates through a liquid crystal molecular layer in the pixel;
step S103: in the second field sequence, the backlight drive controls the second color light source to emit light, so that the second color light source emits second color light, and the pixel displays the second color after the second color light penetrates through the liquid crystal molecular layer in the pixel;
step S104: in the third field sequence, the backlight drive controls the third color light source to emit light, so that the third color light source emits third color light, and the pixel displays the third color after the third color light penetrates through the liquid crystal molecular layer in the pixel;
step S105: in each field sequence, liquid crystal molecules in the display drive control pixels are deflected, and gray scale display of the pixels is realized. The transmittance of light penetrating through the liquid crystal molecular layer is controlled by controlling the deflection degree of the liquid crystal molecules in each field sequence, so that the light emitted by the pixel reaches a target brightness value.
In the display process of each frame picture, a first field sequence, a second field sequence and a third field sequence are included. The pixels in the first field sequence display a first color, the pixels in the second field sequence display a second color, the pixels in the third field sequence display a third color, and the same pixels display the first color, the second color and the third color sequentially, so that color mixing of three primary colors is realized, and color display of each frame of picture is realized.
Color separation may occur when the display panel performs field sequential display. When the human eyes generate large displacement (e.g. eyeball rotation) relative to the panel during the display of the display panel, the three primary colors of light sequentially emitted by the pixels are irradiated to different positions of the human eyes, so that the viewer perceives the color separation of the image, and one mixed color picture is separated into three primary colors, which is easy to cause the problems of visual fatigue and mental stress of the viewer. In order to solve the above problem, the inventor further proposes a driving method of a display panel, and fig. 14 is a flowchart of an alternative implementation of the driving method of the display panel according to the embodiment of the present invention, as shown in fig. 14, the driving method includes:
step S201: in the display process of each frame of picture, the backlight drive and the display drive are both started;
step S202: in the first field sequence, the backlight drive controls the first color light source to emit light;
step S203: in a second field sequence, the backlight drive controls the second color light source to emit light;
step S204: in a third field sequence, the backlight drive controls the third color light source to emit light;
step S205: in each field sequence, liquid crystal molecules in the display drive control pixels are deflected, and gray scale display of the pixels is realized.
Step S206: and between two adjacent frames of picture display, the backlight drive is closed, the display panel performs black picture display, after the backlight drive is closed, all light sources in the backlight source cannot emit light, and the display panel presents a black picture.
The driving method provided by the embodiment inserts the black picture display between two adjacent frames of picture displays, the display picture switching is changed into three primary colors mixed color picture → black picture → three primary colors mixed color picture, the black transition display inserted between the three primary colors mixed color picture displays reduces the color difference of the picture switching, the human eyes are difficult to identify, the color separation phenomenon can be reduced, and the user visual experience is improved.
Further, the invention also provides a driving method which can be used for driving the display panel with the touch control function. The display panel also comprises a touch drive; and when the black picture is displayed, closing the display drive, and simultaneously opening the touch drive to finish the calculation of the position of the touch point. The driving method can be used for driving the display panel corresponding to the embodiment of fig. 12, in the display panel, the block-shaped common electrodes are reused as the touch electrodes in the touch stage, the block-shaped common electrodes play an important role in both the display stage and the touch stage, and if the on-times of the display drive and the touch drive of the display panel are crossed, the operation of the block-shaped common electrodes may be disordered. In the driving method provided by this embodiment, the black frame display is inserted between two frames of frame displays to reduce the color separation, and the display driver is turned off and the touch driver is turned on when the black frame is displayed, and the block-shaped common electrode is used as the touch electrode to complete the calculation of the touch point position during the black frame display process, thereby ensuring the independent and normal use of the display function and the touch function of the display panel.
Further, in some optional implementations, the driving method provided in this embodiment of the present invention further includes: when the black picture is displayed, the display drive is started, the display drive of the next frame picture is performed, and the liquid crystal molecules in the pixels are controlled to start to deflect. In the display stage, voltages are applied to a pixel electrode and a common electrode in a display panel to form an electric field to control liquid crystal molecules to deflect, after a display drive is started, a certain time is required for the voltages to be loaded on the pixel electrode and the common electrode, and a certain time is also required for the liquid crystal molecule deflection process, namely when the display drive controls the display panel to display a frame of picture, a certain response time is provided from the start of the display drive to the start of the picture, namely the response time is required when each frame of picture is switched. In the embodiment, when the black picture is displayed, the display drive is started to perform the display drive of the next frame picture, the liquid crystal molecules in the pixels are controlled to start to deflect, and the next frame picture is driven when the black picture is displayed, so that partial response time is saved, the picture switching speed is increased, and the visual experience of a user is further improved.
Further, the present invention further provides a display device, fig. 15 is a schematic view of the display device according to the embodiment of the present invention, and as shown in fig. 15, the display device includes the display panel 100 according to any embodiment of the present invention. The display device provided by the embodiment of the invention can be any electronic product with a display function, including but not limited to the following categories: the mobile terminal comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, a mobile phone, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like.
According to the embodiment, the display panel, the driving method thereof and the display device of the invention have the following beneficial effects:
in the invention, one pixel row in two adjacent pixel rows is contracted by one pixel relative to the other pixel row in the pixel rows adjacent to the special-shaped boundary. In addition, the pixels in the invention realize mixed color display in a field sequential display mode, that is, a single pixel in the invention can realize display of different colors, and in the related art, at least three sub-pixels with different colors are required to form one pixel to realize display of different colors. The invention can obviously improve the PPI of the display panel and improve the display effect.
Although specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are intended to be illustrative only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A display panel, comprising: a display area having a shaped boundary;
the display area comprises a plurality of pixels, the pixels are arranged along a first direction to form pixel rows, the pixel rows are arranged along a second direction in the display area, and the first direction is crossed with the second direction;
in a plurality of said rows of pixels adjacent to said shaped boundary: at the edge near the special-shaped boundary, one pixel row in two adjacent pixel rows is retracted by 1 pixel relative to the other pixel row;
the display panel further comprises a backlight source, wherein the backlight source at least comprises a first color light source, a second color light source and a third color light source; wherein,
the pixels realize mixed color display in a field sequential display mode, and a single pixel realizes display of different colors;
the display panel comprises a first substrate, a second substrate and a liquid crystal molecular layer positioned between the first substrate and the second substrate; the first substrate includes a black matrix dividing the display area into a plurality of the pixels; the first substrate further comprises a color resistance layer, the color resistance layer comprises a plurality of transparent color resistors, and one pixel comprises one transparent color resistor.
2. The display panel according to claim 1,
the pixels include an odd-shaped pixel and a regular pixel, the opening area of the odd-shaped pixel is smaller than the opening area of the regular pixel, wherein the odd-shaped pixel is adjacent to the odd-shaped boundary.
3. The display panel according to claim 2,
the special-shaped pixels are provided with special-shaped edges, the special-shaped edges are adjacent to the special-shaped boundaries, and the extending direction of the special-shaped edges is the same as the extending direction of the special-shaped boundaries.
4. The display panel according to claim 1,
the second substrate includes a plurality of pixel driving circuits, wherein one of the pixels includes one of the pixel driving circuits.
5. The display panel according to claim 4,
the second substrate further comprises a common electrode layer comprising a plurality of bulk common electrodes;
and in the touch control stage, the block-shaped common electrode is reused as a touch control electrode.
6. A driving method of a display panel for driving the display panel according to any one of claims 1 to 5, the display panel including a backlight drive and a display drive, the driving method comprising:
in the display process of each frame of picture, the backlight drive and the display drive are both started;
in a first field sequence, the backlight drive controls the first color light source to emit light;
in a second field sequence, the backlight drive controls the second color light source to emit light;
in a third field sequence, the backlight drive controls the third color light source to emit light;
in each field sequence, the display drive controls the liquid crystal molecules in the pixels to deflect, and gray scale display of the pixels is achieved.
7. The driving method according to claim 6,
the driving method further includes: and between two adjacent frames of picture display, the backlight drive is closed, and the display panel performs black picture display.
8. The driving method according to claim 7,
the display panel further comprises a touch driver;
the driving method further includes: and when the black picture is displayed, closing the display drive, and simultaneously opening the touch drive to finish the calculation of the position of the touch point.
9. The driving method according to claim 7,
the driving method further includes: and when the black picture is displayed, starting the display drive, carrying out the display drive of the next frame picture, and controlling the liquid crystal molecules in the pixels to start to deflect.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 5.
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| CN116189625B (en) * | 2023-03-27 | 2024-07-23 | 厦门天马微电子有限公司 | Display device and driving method thereof |
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| JPS59135427A (en) * | 1983-01-22 | 1984-08-03 | Nippon Seiki Co Ltd | Liquid crystal panel used for color image display device |
| JP5532481B2 (en) * | 2009-05-13 | 2014-06-25 | Ｎｌｔテクノロジー株式会社 | Color image display method, color filter substrate, color pixel array substrate, image display device, and electronic apparatus |
| KR20110067881A (en) * | 2009-12-15 | 2011-06-22 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| KR101656742B1 (en) * | 2010-05-27 | 2016-09-23 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| CN103389597B (en) * | 2012-05-11 | 2017-01-18 | 群康科技(深圳)有限公司 | Liquid crystal display with misplaced pixels |
| CN103677427A (en) * | 2013-12-26 | 2014-03-26 | 京东方科技集团股份有限公司 | Touch display device driving method and touch display device |
| CN103926729B (en) * | 2013-12-31 | 2017-12-22 | 上海天马微电子有限公司 | Array substrate, color film substrate, touch display device and driving method thereof |
| KR102357931B1 (en) * | 2015-02-02 | 2022-02-04 | 삼성디스플레이 주식회사 | Angular display substrate and display apparatus having the angular display substrate |
| KR102307261B1 (en) * | 2015-05-27 | 2021-10-01 | 삼성디스플레이 주식회사 | Display device |
| CN104821161B (en) * | 2015-05-29 | 2018-05-08 | 京东方科技集团股份有限公司 | Driving method, the driving method of field sequential display device of a kind of sequence display panel |
| CN108304089B (en) * | 2015-12-08 | 2021-04-30 | 上海天马微电子有限公司 | Integrated touch display panel and touch display device |
| CN107479269B (en) * | 2017-08-25 | 2020-05-15 | 厦门天马微电子有限公司 | Special-shaped display panel and display device |
| CN107422516B (en) * | 2017-09-19 | 2020-01-21 | 厦门天马微电子有限公司 | Special-shaped display panel and display device |
| CN107622760B (en) * | 2017-10-31 | 2023-04-04 | 歌尔科技有限公司 | LCD display method and LCD driving circuit |
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