CN114187862A - Display device and display device driving method - Google Patents
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- CN114187862A CN114187862A CN202111531356.4A CN202111531356A CN114187862A CN 114187862 A CN114187862 A CN 114187862A CN 202111531356 A CN202111531356 A CN 202111531356A CN 114187862 A CN114187862 A CN 114187862A
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones 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
- G09G3/36—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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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Abstract
The invention discloses a display device and a display device driving method, the display device is provided with a normal display area and an edge display area which are adjacently arranged, the display device comprises: the first pixel unit is arranged in the normal display area; the second pixel unit is arranged in the edge display area and emits white light; the display device comprises a control chip, a first pixel unit, a second pixel unit, a first light source and a second light source, wherein the first pixel unit and the second pixel unit are respectively electrically connected with the control chip; when the display device displays the mixed color picture with the first gray scale or more, the control chip is used for controlling the first pixel unit and the second pixel unit to emit light. The second pixel unit arranged at the edge region can emit white light, so that the problem that the edge of a screen emits red, blue and other color edges when the display device performs mixed color display is solved, and the display effect of the display device is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and a display device driving method.
Background
With the progress of science and technology, digital display devices such as smart phones and tablet computers are widely used, wherein a display screen is an indispensable interpersonal communication interface of the display devices.
In a low PPI (pixel density), i.e., a medium-and-large-sized display device, when the pixel size is large, the side of the display screen where the edge is adjacent to the edge cannot mix with other sub-Pixels, and when the screen displays a mixed color picture higher than a certain gray level, human eyes can detect that the edge of the display device has color edge problems such as red or blue.
Therefore, a new display device and a driving method thereof are needed to improve the display effect of the display device.
Disclosure of Invention
The embodiment of the invention provides a display device and a display device driving method, wherein a second pixel unit arranged at an edge region can emit white light, so that the problem that the edge of a screen emits red, blue and other color edges when the display device performs mixed color display is solved, and the display effect of the display device is improved.
In a first aspect, an embodiment of the present invention provides a display device having a normal display area and an edge display area, which are adjacently disposed, where the display device includes: the first pixel unit is arranged in the normal display area; the second pixel unit is arranged in the edge display area and emits white light; the first pixel unit and the second pixel unit are respectively and electrically connected with the control chip, and when the display device displays a monochromatic picture, the control chip is used for controlling the first pixel unit to emit light, and the second pixel unit does not emit light; when the display device displays a mixed color picture with a first gray scale or more, the control chip is used for controlling the first pixel unit and the second pixel unit to emit light.
In a second aspect, an embodiment of the present invention provides a display device driving method, including: when the display device displays a monochromatic picture, a first driving signal is sent to a first pixel unit through a control chip; when the display device displays a mixed color picture with a first gray scale or more, a first driving signal and a second driving signal are respectively sent to the first pixel unit and the second pixel unit through the control chip.
Compared with the related art, the display device provided by the embodiment of the invention has the normal display area and the edge display area which are adjacently arranged, the first pixel unit is arranged in the normal display area, and the second pixel unit capable of emitting white light is arranged in the edge display area. When the display device displays a monochromatic picture, the control chip is used for controlling the first pixel unit to emit light and the second pixel unit to not emit light, namely, the first pixel unit emits monochromatic light such as red, green and blue, and the second pixel unit does not emit light, so that interference caused by white light emitted by the second pixel unit to a monochromatic display edge is avoided, and the saturation of the color displayed by the edge of the display device is reduced. When the display device displays the mixed color picture which is larger than or equal to the first gray scale, the first pixel unit and the second pixel unit emit light, and the second pixel unit arranged at the edge region can emit white light, so that the first pixel unit and the second pixel unit can mix light, the light emitting saturation of the first pixel unit can be reduced, the problems of red, blue and other color edges at the edge of a screen when the display device displays the mixed color picture are solved, and the display effect of the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of a display device according to an embodiment of the invention;
FIG. 3 is a partial schematic view of a display device provided in accordance with another embodiment of the invention;
FIG. 4 is a partial schematic view of a display device provided in accordance with yet another embodiment of the invention;
FIG. 5 is a partial schematic view of a display device according to yet another embodiment of the invention;
FIG. 6 is a partial schematic view of a display device provided in accordance with yet another embodiment of the invention;
FIG. 7 is a partial schematic view of a display device according to yet another embodiment of the invention;
FIG. 8 is a partial schematic view of a display device provided in accordance with yet another embodiment of the invention;
FIG. 9 is a partial schematic view of a display device provided in accordance with yet another embodiment of the invention;
fig. 10 is a flowchart of a driving method of a display device according to an embodiment of the present invention;
fig. 11 is a signal timing diagram of a driving method of a display device according to an embodiment of the invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the related art, limited by pixel arrangement and pixel density, PPIs are relatively low for medium and large sizes in the prior art, such as flat panels, notebook computers, and the like, and color edge problems such as red color, blue color, and the like easily occur at the edge portion of a display device with medium and large sizes in a white screen, specifically, because a display screen usually adopts red, green, and blue pixel sequence arrangement, a red subpixel at the leftmost side is already an initial subpixel, that is, no other subpixels are mixed with the red subpixel at the left side, and similarly, no other subpixels are mixed with the red subpixel at the right side; and because the pixel size of the sub-pixel is larger, and the fineness of human eyes enables a user to perceive the color of the edge sub-pixel, when the screen displays a mixed color picture higher than a certain gray scale, the user feels that the screen has the color edge problem of left red and right blue.
In order to solve the above problems, embodiments of the present invention provide a display device and a display device driving method, and embodiments of the display device and the display device driving method will be described below with reference to the accompanying drawings.
The Display device provided by the embodiment of the invention can be an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode) Display panel, a QLED (Quantum Dot Light Emitting Diode) Display device, a Mini LED Display device, or the like. The following description will be given taking the display device as an example of an LCD display device.
For better understanding of the present invention, a display device and a display device driving method according to an embodiment of the present invention will be described in detail below with reference to fig. 1 to 9.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention; the embodiment of the invention provides a display device, which is provided with a normal display area AA and an edge display area BA which are adjacently arranged, and the display device comprises: the first pixel unit 1 is arranged in the normal display area AA; the second pixel unit 2 is arranged in the edge display area BA, and the second pixel unit 2 emits white light; the display device comprises a control chip IC, a first pixel unit 1 and a second pixel unit 2, wherein the control chip IC is respectively electrically connected with the control chip IC, and when the display device displays a monochromatic picture, the control chip IC is used for controlling the first pixel unit 1 to emit light, and the second pixel unit 2 does not emit light; when the display device displays the mixed color picture with the first gray scale or more, the control chip IC is used for controlling the first pixel unit 1 and the second pixel unit 2 to emit light.
The display device provided by the embodiment of the invention is provided with a normal display area AA and an edge display area BA which are arranged adjacently, wherein the normal display area AA is provided with a first pixel unit 1, and the edge display area BA is provided with a second pixel unit 2 capable of emitting white light. When the display device displays a monochromatic picture, the control chip IC is used for controlling the first pixel unit 1 to emit light and the second pixel unit 2 not to emit light, that is, the first pixel unit 1 emits monochromatic light such as red, green and blue, and the second pixel unit 2 does not emit light, so as to avoid that the white light emitted by the second pixel unit 2 interferes with the edge of the display device in monochromatic, so that the display color saturation of the edge of the display device is reduced. When the display device displays a mixed color picture with a first gray scale or more, the first pixel unit 1 and the second pixel unit 2 both emit light, and the second pixel unit 2 arranged in the edge region can emit white light, that is, the color mixing is performed through the second pixel unit 2 and the first pixel unit 1 adjacent to the second pixel unit 2, and the white light emitted by the second pixel unit 2 can reduce the color saturation of the first pixel unit 1 adjacent to the second pixel unit 2 and interfere human eyes, and can also enable the first pixel unit 1 adjacent to the second pixel unit 2 and the second pixel unit 2 to perform certain light mixing, so that the problems of red color, blue color and the like on the edge of a screen during mixed color display of the display device are solved, and the display effect of the display device is improved.
In this embodiment, the first pixel unit 1 may be configured to include three color sub-pixels of red, blue and green, and when the display device displays a single color picture, that is, when the display device displays a single color picture of one color of red, blue and green, the first pixel unit 1 emits light; when the display device displays a mixed color picture with a first gray scale or more, the first gray scale can be 210 gray scale, that is, when the display device displays a high gray scale mixed color picture with a gray scale or more than 210 gray scale, the first pixel unit 1 and the second pixel unit 2 both emit light, so that the problem that the edge of a screen emits red, blue and other color edges when the display device displays the high gray scale mixed color picture is solved by emitting white light through the second pixel unit 2. Of course, the first gray level is not limited to the 210 gray level, and may be gray levels of other levels, which may be set as required.
It should be noted that the control chip IC is configured to send driving signals to the first pixel unit 1 and the second pixel unit 2, respectively, so as to control the first pixel unit 1 and the second pixel unit 2 to be turned on and off.
Referring to fig. 1 and 2, fig. 2 is a partial schematic view of a display device according to an embodiment of the invention; in some alternative embodiments, the first pixel unit 1 includes a plurality of first sub-pixels 11 arranged along the second direction X and having different colors, and the second pixel unit 2 includes second sub-pixels 21 arranged along the first direction Y, where the first direction Y and the second direction X intersect.
It can be understood that the first pixel unit 1 includes a plurality of first sub-pixels 11 with different colors, specifically, the colors of light emitted by the first sub-pixels 11 are different, and the light mixing is realized by the light emitted by the first sub-pixels 11 with different colors, so that the display device can display a mixed color picture. The first sub-pixels 11 are arranged along the second direction X, the second sub-pixels 21 are arranged along the first direction Y, and the second sub-pixels 21 and the first sub-pixels 11 are arranged in different arrangement directions, so that the second sub-pixels 21 emit white light through mixed light, and the white light emitted by the second sub-pixels 21 weakens the monochromatic light emitted by the first sub-pixels 11 close to the second sub-pixels 21, thereby avoiding the red and blue color edge problem at the edge part of the display device, i.e. the edge display area BA. Optionally, the first direction Y is perpendicular to the second direction X.
Referring to fig. 2, based on the above embodiment, optionally, the first sub-pixel 11 includes a first red sub-pixel 111, a first green sub-pixel 112, and a first blue sub-pixel 113, and the first red sub-pixel 111, the first green sub-pixel 112, and the first blue sub-pixel 113 are arranged along the second direction X; the second sub-pixel 21 includes a second red sub-pixel 211, a second green sub-pixel 212, and a second blue sub-pixel 213, and the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 are arranged along the first direction Y.
It is understood that, in order for the display device to display a single color picture, the control chip IC may control one of the first red subpixel 111, the first green subpixel 112 and the first blue subpixel 113 to emit light individually to display a red picture, a green picture and a blue picture, respectively. When the display device displays the mixed color picture with the first gray scale or more, the control chip IC controls the first red sub-pixel 111, the first green sub-pixel 112 and the first blue sub-pixel 113 to emit light correspondingly, and controls the second red sub-pixel 211, the second green sub-pixel 212 and the second blue sub-pixel 213 of the second sub-pixel 21 to emit light simultaneously to mix the light into white light according to the mixed color picture to be displayed. Optionally, the first direction Y, that is, the extending direction of the edge display area BA where the second sub-pixel 21 is located, is to arrange the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 along the first direction Y, so that the edge portion of the display device emits white light, that is, to perform partial compensation on the sub-pixel displaying the first gray scale or more at the edge of the normal display area AA.
In order to make the light emission of the second sub-pixel 21 more uniform and the attenuation effect of the monochromatic light for the first sub-pixel 11 more uniform, in some alternative embodiments, in the first direction Y, the length of one first sub-pixel 11 is the first length d1, the length of one second sub-pixel 21 is the second length d2, and the second length d2 is smaller than or equal to the first length d 1.
In the present embodiment, since the first sub-pixels 11 are arranged along the second direction X, the first length d1 can also be understood as the length of one first red sub-pixel 111, one first green sub-pixel 112, or one first blue sub-pixel 113 along the first direction Y. When the second length d2 is less than or equal to the first length d1, a longitudinal second sub-pixel 21 can be compensated for an adjacent first sub-pixel 11, so as to adjust the white light compensation effect.
In some alternative embodiments, the lengths of the second red subpixel 211, the second green subpixel 212, and the second blue subpixel 213 of one second subpixel 21 in the first direction Y are respectively equal to one third of the first length d 1.
In the present embodiment, the lengths of the second red subpixel 211, the second green subpixel 212 and the second blue subpixel 213 of one second subpixel 21 in the first direction Y are respectively equal, i.e., the lengths of the second red subpixel 211, the second green subpixel 212 and the second blue subpixel 213 in the first direction Y equally divide the first length d1 of the first subpixel 11 in the first direction Y. By setting the lengths of the second red subpixel 211, the second green subpixel 212, and the second blue subpixel 213 of one second subpixel 21 in the first direction Y to be equal to one third of the first length d1, that is, by trisecting the second red subpixel 211, the second green subpixel 212, and the second blue subpixel 213 of the second subpixel 21 in area, so that one second subpixel 21 is disposed corresponding to one first subpixel 11 in the first direction Y, not only is the preparation simple, but also the mixing into white light is easier.
Referring to fig. 3 and 4, fig. 3 is a partial schematic view of a display device according to another embodiment of the invention; fig. 4 is a partial schematic view of a display device according to still another embodiment of the present invention. In still other embodiments, the length of one or both of the second red subpixel 211, the second green subpixel 212, and the second blue subpixel 213 of one second subpixel 21 along the first direction Y is equal to the first length d 1.
It can be understood that the length of one of the second red sub-pixel 211, the second green sub-pixel 212 and the second blue sub-pixel 213 of one second sub-pixel 21 along the first direction Y is equal to the first length d1, i.e. one second sub-pixel 21 can be disposed corresponding to a plurality of first sub-pixels 11 along the first direction Y, as shown in fig. 3, so as to reduce the number of second sub-pixels 21 and thus reduce the cost. When the sum of the lengths of the two of the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 of one second sub-pixel 21 along the first direction Y is equal to the first length d1, that is, along the first direction Y, one first sub-pixel 11 is disposed corresponding to any two of the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 of one second sub-pixel 21, as shown in fig. 4, the number of required second sub-pixels 21 can also be reduced, so as to achieve the purpose of reducing the cost.
Optionally, the width of the second sub-pixel 21 along the second direction X may be adjusted as needed, and is not particularly limited, but it should be noted that the width of the second sub-pixel 21 along the second direction X is not too wide, and the too wide may cause the frame of the display device to be too wide. Optionally, the width of the second sub-pixel 21 is smaller than the width of the three first sub-pixels 11 along the second direction X.
Referring to fig. 5 and 6, fig. 5 is a partial schematic view of a display device according to another embodiment of the invention; fig. 6 is a partial schematic view of a display device according to still another embodiment of the present invention. In order to improve the effect of mixing the light of the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 in the second sub-pixel 21 into white light, in some alternative embodiments, the first sub-pixel 11 includes a first red sub-pixel 111, a first green sub-pixel 112, and a first blue sub-pixel 113, and the first red sub-pixel 111, the first green sub-pixel 112, and the first blue sub-pixel 113 are arranged along the second direction X; the second sub-pixel 21 includes a second red sub-pixel 211, a second green sub-pixel 212, and a second blue sub-pixel 213, and at least one side of each of the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 is disposed adjacent to each other.
It should be noted that, in the embodiment, the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 of the second sub-pixel 21 may be disposed around a certain point, so that at least one side of each of the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 is disposed adjacent to another side of each other, so that the color mixing of the second sub-pixel 21 is more uniform, specifically, as shown in fig. 6, the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 may be respectively in a partial sector shape, and form a complete circle, that is, a second sub-pixel 21. Alternatively, as shown in fig. 5, the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213 may be combined to form a rectangular shape or the like, so as to improve the light mixing effect of the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213.
In addition to emitting white light by mixing light from the second red sub-pixel 211, the second green sub-pixel 212, and the second blue sub-pixel 213, white light may be emitted by directly disposing the white sub-pixel 214, specifically, refer to fig. 7 to 9, where fig. 7 is a partial schematic view of a display device according to another embodiment of the present invention; FIG. 8 is a partial schematic view of a display device provided in accordance with yet another embodiment of the invention; fig. 9 is a partial schematic view of a display device according to still another embodiment of the present invention. The first subpixel 11 includes a first red subpixel 111, a first green subpixel 112, and a first blue subpixel 113, and the first red subpixel 111, the first green subpixel 112, and the first blue subpixel 113 are arranged along the second direction X; the second subpixel 21 includes a white subpixel 214, and the white subpixel 214 is arranged along a first direction Y or a second direction X, and the first direction Y and the second direction X intersect.
It should be noted that, when the display device is an LCD display device, the display device includes a color filter substrate, a red color resistor, a green color resistor, and a blue color resistor are disposed on the color filter substrate to enable corresponding sub-pixels to emit light of corresponding colors, and the white sub-pixel 214 may not have a color resistor at a corresponding position of the color filter substrate, but may be filled with a transparent material, such as an OC glue, to enable a corresponding position thereof to emit white light. Since the white sub-pixel 214 emits white light without mixing light, the white sub-pixel 214 may be arranged along the first direction Y or the second direction X without any particular limitation.
In some alternative embodiments, the white sub-pixels 214 are arranged along the first direction Y, in which the length of one first sub-pixel 11 is the first length d1, the length of one white sub-pixel 214 is the third length d3, and the third length d3 is smaller than or equal to the first length d 1.
It should be noted that the white sub-pixels 214 may be arranged in horizontal rows, as shown in fig. 8, or in vertical rows, as shown in fig. 7 and 9, specifically, the white sub-pixels 214 are arranged in horizontal rows, which means that the length of one white sub-pixel 214 along the first direction Y is smaller than the length of the white sub-pixel 214 along the second direction X. The white sub-pixels 214 are arranged vertically, that is, the length of one white sub-pixel 214 along the first direction Y is greater than the length of the white sub-pixel 214 along the second direction X. The third length d3 of a white sub-pixel 214 can be less than or equal to the first length d1 whether the white sub-pixels 214 are arranged in horizontal rows or vertical rows. The white subpixel 214 may be rectangular, elliptical, circular, or other polygonal shapes, and is not particularly limited.
On the basis of the above embodiment, optionally, in the first direction Y, the sum of the lengths of at least two white sub-pixels 214 is equal to the length of one first sub-pixel 11. That is, in the first direction Y, one first sub-pixel 11 is disposed corresponding to at least two white sub-pixels 214, so as to reduce the influence of the monochromatic light emitted by the corresponding first sub-pixel 11 on the edge of the display device by the white light emitted by the plurality of white sub-pixels 214. Alternatively, as shown in fig. 8, in the first direction Y, the sum of the lengths of the three white sub-pixels 214 is equal to the length of one first sub-pixel 11, and the lengths of the respective white sub-pixels 214 along the first direction Y are equal.
As shown in fig. 7, three rows of white sub-pixels 214 may be provided, and each of the white sub-pixels 214 has the same size as the first sub-pixel 11, which not only facilitates the preparation, but also compensates the brightness of a pixel region, so that the white light compensation is more sufficient and the improvement effect is better.
Referring to fig. 2 to 9, in order to drive and control the first pixel unit 1 and the second pixel unit 2 to emit light for display, in some optional embodiments, the display device further includes a first pixel circuit and a second pixel circuit electrically connected to the control chip IC, the first pixel circuit is electrically connected to the first pixel unit 1, and the second pixel circuit is electrically connected to the second pixel unit 2; the second pixel circuit includes thin film transistors TFT, and each of the second sub-pixels 21 of one second pixel unit 2 is electrically connected to the same thin film transistor TFT; alternatively, each of the second sub-pixels 21 of one second pixel unit 2 is electrically connected to a different thin film transistor TFT.
It can be understood that, since the first pixel unit 1 emits light when the display device displays a monochrome picture and displays a mixed color picture with a first gray scale or more, and the second pixel unit 2 emits light only when the display device displays a mixed color picture with a first gray scale or more, the first pixel unit 1 and the second pixel unit 2 need to be connected with the first pixel circuit and the second pixel circuit respectively to realize separate control. And each second sub-pixel 21 of the second pixel unit 2 can be electrically connected with the same thin film transistor TFT for control, and when the second sub-pixel 21 includes the second red sub-pixel 211, the second green sub-pixel 212 and the second blue sub-pixel 213, the second red sub-pixel 211, the second green sub-pixel 212 and the second blue sub-pixel 213 of one second sub-pixel 21 are electrically connected with the same thin film transistor TFT, so that the number of thin film transistors TFT can be reduced, the setup and the preparation are convenient, and the frame width of the display device is not too wide, as shown in fig. 2 and fig. 5. Of course, each second sub-pixel 21 of one second pixel unit 2 may also be electrically connected to a different TFT, as shown in fig. 8, so as to control the number of the second sub-pixels 21 emitting light, and thus control the white luminance of the second pixel unit 2.
Referring to fig. 2 to 9, in order to turn on the thin film transistor TFT, in some alternative embodiments, the display device further includes a data line date extending along the first direction Y and arranged along the second direction X, and a scan line scan extending along the second direction X and arranged along the first direction Y, wherein the data line date is electrically connected to a source or a drain of the thin film transistor TFT, and the scan line scan is electrically connected to a gate of the thin film transistor TFT; each second sub-pixel 21 of one second pixel unit 2 is electrically connected to the same data line date through a thin film transistor TFT; alternatively, each of the second sub-pixels 21 of one second pixel unit 2 is electrically connected to a different data line date through a thin film transistor TFT.
It should be noted that the data line date is used for transmitting a data signal to the thin film transistor TFT, and the scan line scan is used for transmitting a scan signal to the thin film transistor TFT, and when the thin film transistor TFT receives the data signal and the scan signal at the same time, the data line date is turned on, so that the first pixel unit 1 or the second pixel unit 2 connected to the thin film transistor TFT is turned on to emit light. Each second sub-pixel 21 of one second pixel unit 2 may be electrically connected to the same data line date through a thin film transistor TFT, as shown in fig. 2, 5, and 6. When the data line date receives the data signal from the control chip IC, the second sub-pixels 21 of the second pixel unit 2 connected to the data line date are simultaneously lighted, so as to facilitate the uniform control. Alternatively, each second sub-pixel 21 of one second pixel unit 2 is electrically connected to a different data line date through a thin film transistor TFT, as shown in fig. 8, to control whether each second sub-pixel 21 emits light and the emitting brightness, so as to ensure the white light effect of the second pixel unit 2.
The edge display area BA of the display device may be disposed around the entire normal display area AA, or may be disposed on one side or two sides of the normal display area AA, as shown in fig. 1, in some alternative embodiments, the edge display area BA includes a first sub-edge area BA1 and a second sub-edge area BA2 respectively disposed on two opposite sides of the normal display area AA, and the second pixel cells 2 located in the first sub-edge area BA1 and the second sub-edge area BA2 are symmetrical with respect to a center of the normal display area AA.
In this embodiment, the first sub-edge area BA1 and the second sub-edge area BA2 are disposed on two opposite sides of the normal display area AA, specifically, the two sides may be upper and lower sides or left and right sides, and are not particularly limited, and the illustration is made by the first sub-edge area BA1 and the second sub-edge area BA2 being disposed on two opposite sides of the normal display area AA. By symmetrically arranging the second pixel units 2 located in the first sub-edge area BA1 and the second sub-edge area BA2 with respect to the center of the normal display area AA, the white light emitted by the second pixel units 2 can be uniformly and symmetrically, that is, the white light compensation effect for the first pixel units 1 located in the normal display area AA and adjacent to the second pixel units 2 is also uniformly and symmetrically, so that the user experience is improved.
In some alternative embodiments, at least one column of the second pixel units 2 is disposed in the edge display area BA along the second direction X.
It can be understood that, along the second direction X, the more the number of columns of the second pixel unit 2 is set, the larger the irradiation range and the luminance of the white light emitted by the second pixel unit 2 are, the better the improvement effect on the red-emitting and blue-emitting color fringe problem of the edge of the display device is, but the too many columns of the second pixel unit 2 are set, which may cause the size of the edge display area BA to be too large, cause the frame portion of the display device to be too wide, and affect the experience effect of the user, and therefore the too many columns of the second pixel unit 2 are also not suitable for being set. Optionally, three columns of the second pixel units 2 are disposed in the edge display area BA along the second direction X.
Referring to fig. 10 and 11, fig. 10 is a flowchart illustrating a driving method of a display device according to an embodiment of the invention, and fig. 11 is a timing diagram illustrating a driving method of a display device according to an embodiment of the invention. The embodiment of the invention also provides a display device driving method, which comprises the following steps:
s110: when the display device displays a monochrome picture, sending a first driving signal V1 to the first pixel unit 1 through the control chip IC;
s120: when the display device displays a mixed color picture with a first gray scale or more, the first driving signal V1 and the second driving signal V2 are respectively sent to the first pixel unit 1 and the second pixel unit 2 through the control chip IC.
In the driving method of the display device provided by the embodiment of the invention, when the display device displays a monochromatic picture, the control chip IC sends the first driving signal V1 to the first pixel unit 1 to control the first pixel unit 1 to emit light, and the second pixel unit 2 does not emit light, that is, the first pixel unit 1 emits monochromatic light such as red, green and blue, and the second pixel unit 2 does not emit light, so as to avoid interference of white light emitted by the second pixel unit 2 on the edge of the display device during monochromatic display, and reduce the saturation of the display color displayed on the edge of the display device. When the display device displays a mixed color picture with a first gray scale or more, the first driving signal V1 and the second driving signal V2 are respectively sent to the first pixel unit 1 and the second pixel unit 2 through the control chip IC, the first pixel unit 1 and the second pixel unit 2 both emit light, and the second pixel unit 2 arranged in the edge region can emit white light, so that the first pixel unit 1 can mix light with the second pixel unit 2, the saturation of the light emitted by the first pixel unit 1 can be reduced, the problem of red and blue color edges of a screen when the display device displays the mixed color is solved, and the display effect of the display device is improved.
In step S110, the display device displays a single-color picture, and specifically, the display device may display a single-color picture of red, blue, and green.
In step S120, when the display device displays the color-mixed picture with the first gray scale or more, the first gray scale may be equal to 210 gray scales, that is, when the display device displays the color-mixed picture with the high gray scale or more than 210 gray scales, both the first pixel unit 1 and the second pixel unit 2 emit light.
In some optional embodiments, when the display device displays a monochrome picture, the first control switch is turned on, the first pixel unit 1 receives the first display signal through the first pixel circuit, and the second control switch is turned off; when the display device displays a mixed color picture with a first gray scale or more, the first control switch is turned on, the first pixel unit 1 receives a first display signal through the first pixel circuit, the second control switch is turned on, and the second pixel unit 2 receives a second display signal through the second pixel circuit.
In this embodiment, the first control switch and the second control switch may be thin film transistors TFT or other switch control devices, and the first pixel unit 1 and the second pixel unit 2 are respectively controlled by the first control switch and the second control switch.
Taking the display device with 1920 × 1080 resolution as an example to show the display driving process of the display device, the number of pixels of the display device with 1920 × 1080 resolution is 622 ten thousand, according to theoretical calculation, when the gray scale is greater than or equal to 210, the pixel turn-on ratio is greater than or equal to 82.3%, that is, when the number of pixels turn-on is greater than or equal to 510 ten thousand, the display device displays a mixed color picture with the gray scale greater than or equal to 210, at this time, the control chip IC sends a first driving signal V1 and a second driving signal V2 to the first pixel unit 1 and the second pixel unit 2 respectively so as to enable the first pixel unit 1 and the second pixel unit 2 to emit light, and the number of pixels turn-on of each frame is counted to judge whether the display device displays the mixed color picture with the gray scale greater than or equal to 210, so as to control the light emitting display of the second pixel unit 2.
As described above, only the specific embodiments of the present invention are provided, and it is clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Claims (17)
1. A display device having a normal display area and an edge display area adjacently disposed, comprising:
the first pixel unit is arranged in the normal display area;
the second pixel unit is arranged in the edge display area and emits white light;
the first pixel unit and the second pixel unit are respectively and electrically connected with the control chip, and when the display device displays a monochromatic picture, the control chip is used for controlling the first pixel unit to emit light, and the second pixel unit does not emit light; when the display device displays a mixed color picture with a first gray scale or more, the control chip is used for controlling the first pixel unit and the second pixel unit to emit light.
2. The display device according to claim 1, wherein the first pixel unit includes a plurality of first sub-pixels arranged in a second direction and having different colors, and the second pixel unit includes a second sub-pixel arranged in a first direction, and the first direction and the second direction intersect.
3. The display device according to claim 2, wherein the first sub-pixel includes a first red sub-pixel, a first green sub-pixel, and a first blue sub-pixel, the first red sub-pixel, the first green sub-pixel, and the first blue sub-pixel being arranged in a second direction,
the second sub-pixels include a second red sub-pixel, a second green sub-pixel, and a second blue sub-pixel, and the second red sub-pixel, the second green sub-pixel, and the second blue sub-pixel are arranged along a first direction.
4. A display device according to claim 3, wherein a length of one of the first sub-pixels is a first length and a length of one of the second sub-pixels is a second length in the first direction, the second length being less than or equal to the first length.
5. The display device according to claim 4, wherein lengths of the second red sub-pixel, the second green sub-pixel and the second blue sub-pixel of one of the second sub-pixels in the first direction are respectively equal to one third of the first length.
6. The display device according to claim 4, wherein a sum of lengths of one or both of the second red, second green, and second blue subpixels of one of the second subpixels in the first direction is equal to the first length.
7. The display device according to claim 2, wherein the first subpixel comprises a first red subpixel, a first green subpixel, and a first blue subpixel, and the first red subpixel, the first green subpixel, and the first blue subpixel are arranged in a second direction;
the second sub-pixels comprise a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel, and at least one side of each of the second red sub-pixel, the second green sub-pixel and the second blue sub-pixel is arranged adjacently.
8. The display device according to claim 2, wherein the first subpixel comprises a first red subpixel, a first green subpixel, and a first blue subpixel, and the first red subpixel, the first green subpixel, and the first blue subpixel are arranged in a second direction;
the second sub-pixel includes a white sub-pixel arranged in a first direction or a second direction, and the first direction and the second direction intersect.
9. The display device according to claim 8, wherein the white sub-pixels are arranged along the first direction, and in the first direction, a length of one of the first sub-pixels is a first length, and a length of one of the white sub-pixels is a third length, and the third length is smaller than or equal to the first length.
10. A display device as claimed in claim 9, wherein the sum of the lengths of at least two of the white sub-pixels in the first direction is equal to the length of one of the first sub-pixels.
11. The display device according to claim 2, further comprising a first pixel circuit and a second pixel circuit electrically connected to the control chip, wherein the first pixel circuit is electrically connected to the first pixel unit, and the second pixel circuit is electrically connected to the second pixel unit;
the second pixel circuit comprises a thin film transistor, and each second sub-pixel of one second pixel unit is electrically connected with the same thin film transistor; or, each of the second sub-pixels of one of the second pixel units is electrically connected to a different one of the thin film transistors.
12. The display device according to claim 11, further comprising a data line extending in the first direction and arranged in the second direction and a scan line extending in the second direction and arranged in the first direction, wherein the data line is electrically connected to a source or a drain of the thin film transistor, and the scan line is electrically connected to a gate of the thin film transistor;
each second sub-pixel of one second pixel unit is electrically connected with the same data line through the thin film transistor; or, each of the second sub-pixels of one of the second pixel units is electrically connected to a different one of the data lines through the thin film transistor.
13. The display device according to claim 1, wherein the edge display region includes a first sub-edge region and a second sub-edge region respectively disposed at two opposite sides of the normal display region, and the second pixel units located in the first sub-edge region and the second sub-edge region are symmetrical with respect to a center of the normal display region.
14. The display device according to claim 1, wherein at least one column of the second pixel units is disposed in the edge display region along the second direction.
15. A display device driving method, comprising:
when the display device displays a monochromatic picture, a first driving signal is sent to a first pixel unit through a control chip;
when the display device displays a mixed color picture with a first gray scale or more, a first driving signal and a second driving signal are respectively sent to the first pixel unit and the second pixel unit through the control chip.
16. The display device driving method according to claim 15, wherein when the display device displays a monochrome screen, the first control switch is turned on, the first pixel unit receives the first display signal through the first pixel circuit, and the second control switch is turned off;
when the display device displays a mixed color picture with a first gray scale or more, the first control switch is conducted, the first pixel unit receives a first display signal through the first pixel circuit, the second control switch is conducted, and the second pixel unit receives a second display signal through the second pixel circuit.
17. The method for driving a display device according to claim 15, wherein the first gray scale is equal to 210.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613309A (en) * | 2022-03-25 | 2022-06-10 | 厦门天马显示科技有限公司 | Pixel arrangement structure, display panel and display device |
| CN117877441A (en) * | 2024-03-12 | 2024-04-12 | 惠科股份有限公司 | Display device and driving method of display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007187974A (en) * | 2006-01-16 | 2007-07-26 | Sony Corp | Method for driving color liquid crystal display device assembly |
| KR20170049788A (en) * | 2015-10-28 | 2017-05-11 | 엘지디스플레이 주식회사 | Display Device having white sub-pixel and Method of Driving the same |
| CN207883217U (en) * | 2018-02-09 | 2018-09-18 | 京东方科技集团股份有限公司 | Display base plate and display device |
| KR20190086060A (en) * | 2018-01-11 | 2019-07-22 | 삼성디스플레이 주식회사 | Method of driving a display panel and organic light emitting display device employing the same |
| WO2020222770A1 (en) * | 2019-04-29 | 2020-11-05 | Leia Inc. | Multiview display and method having shifted color sub-pixels |
| CN112666746A (en) * | 2020-12-31 | 2021-04-16 | 厦门天马微电子有限公司 | Display panel, display device and display method |
| CN113552745A (en) * | 2020-04-23 | 2021-10-26 | 华为技术有限公司 | Display device and driving method thereof |
-
2021
- 2021-12-15 CN CN202111531356.4A patent/CN114187862B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007187974A (en) * | 2006-01-16 | 2007-07-26 | Sony Corp | Method for driving color liquid crystal display device assembly |
| KR20170049788A (en) * | 2015-10-28 | 2017-05-11 | 엘지디스플레이 주식회사 | Display Device having white sub-pixel and Method of Driving the same |
| KR20190086060A (en) * | 2018-01-11 | 2019-07-22 | 삼성디스플레이 주식회사 | Method of driving a display panel and organic light emitting display device employing the same |
| CN207883217U (en) * | 2018-02-09 | 2018-09-18 | 京东方科技集团股份有限公司 | Display base plate and display device |
| WO2020222770A1 (en) * | 2019-04-29 | 2020-11-05 | Leia Inc. | Multiview display and method having shifted color sub-pixels |
| CN113552745A (en) * | 2020-04-23 | 2021-10-26 | 华为技术有限公司 | Display device and driving method thereof |
| CN112666746A (en) * | 2020-12-31 | 2021-04-16 | 厦门天马微电子有限公司 | Display panel, display device and display method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613309A (en) * | 2022-03-25 | 2022-06-10 | 厦门天马显示科技有限公司 | Pixel arrangement structure, display panel and display device |
| CN117877441A (en) * | 2024-03-12 | 2024-04-12 | 惠科股份有限公司 | Display device and driving method of display device |
| CN117877441B (en) * | 2024-03-12 | 2024-07-05 | 惠科股份有限公司 | Display device and driving method of display device |
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