CN112216217A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112216217A CN112216217A CN202011102582.6A CN202011102582A CN112216217A CN 112216217 A CN112216217 A CN 112216217A CN 202011102582 A CN202011102582 A CN 202011102582A CN 112216217 A CN112216217 A CN 112216217A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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Abstract
The invention discloses a display panel and a display device, wherein a first display area comprises a plurality of first pixel units, a second display area comprises a plurality of second pixel units, and the density of the first pixel units is greater than that of the second pixel units; along a second direction, the second pixel unit comprises a white pixel unit and a color pixel unit; along a first direction, the white pixel unit comprises a plurality of white sub-pixels, the color pixel unit comprises at least two color sub-pixel units, the color sub-pixel units comprise a plurality of color sub-pixels, the length of each white sub-pixel is n1, the length of each color sub-pixel is n2, n2 is not more than 1/2n1, each color sub-pixel comprises a blue sub-pixel, any blue sub-pixel is not adjacent, and the sub-pixels with the same color in the same second pixel unit are electrically connected through a connecting part. This application does the colour sub pixel for a short time to with it through connecting portion electricity connection, solve the dark line problem when guaranteeing display panel aperture ratio.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the rapid development of internet technology and display technology, intelligent mobile terminal devices in people's daily life play an increasingly important role. The intelligent mobile terminal equipment can acquire the latest information at any time and any place, realize real-time interaction with other intelligent equipment and meet various requirements in life and work. Meanwhile, people also put forward higher requirements on the display effect of the intelligent mobile terminal with the display screen, and the display screens such as 'frameless' and 'full screen' become research hotspots in the display field. The larger screen occupation ratio brings more excellent visual experience to users, and can display more information, so that the pursuit of the larger screen occupation ratio becomes the mainstream development trend of display products.
In order to realize full-screen display, a camera needs to be directly placed below a liquid crystal display panel, and since the density of sub-Pixels in an imaging area is smaller than that of sub-Pixels in a normal display area, the sub-pixel arrangement mode of the imaging area is difficult to realize high-pixel density (Pixels Per inc, PPI) display, and in order to ensure that the brightness of the imaging area is consistent with that of the normal display area, the area of the sub-Pixels in the imaging area is larger than that of the sub-Pixels in the normal display area, but the problem of light leakage and vertical dark fringes is easily caused by the overlarge area of the sub-Pixels in the imaging area.
Disclosure of Invention
In view of the above, the present invention provides a display panel and a display device, wherein the length of the color sub-pixels in the second display area is at least less than half of the length of the white sub-pixels in the first direction, and the color sub-pixels with the same color in the same second pixel unit are electrically connected through a connection portion, so as to solve the problems of light leakage and dark stripes of the display panel while ensuring the aperture ratio.
In one aspect, the present invention provides a display panel. The display panel includes: a display area and a non-display area surrounding the display area, the display area including a first display area and a second display area;
the first display area comprises a plurality of first pixel units arranged in an array, the second display area comprises a plurality of second pixel units arranged in an array, and the density of the first pixel units in the first display area is greater than that of the second pixel units in the second display area;
in a second direction, the second pixel unit comprises a white pixel unit and a color pixel unit;
the white pixel unit comprises a plurality of white sub-pixels along a first direction, the color pixel unit comprises at least two color sub-pixel units, the color sub-pixel units comprise a plurality of color sub-pixels, the length of the white sub-pixel along the first direction is n1, the length of the color sub-pixel is n2, n2 is not more than 1/2n1, and the first direction and the second direction intersect;
the color sub-pixels comprise blue sub-pixels, first color sub-pixels and second color sub-pixels, any blue sub-pixels are not adjacent, and in the same second pixel unit, the color sub-pixels with the same color are electrically connected through connecting parts.
In another aspect, the present invention further provides a display device, which includes a display panel and any one of the display panels provided in the present application.
Compared with the prior art, the display panel and the display device provided by the invention have the advantages that along the second direction, the second pixel unit comprises a white pixel unit and a color pixel unit; the white pixel unit comprises a plurality of white sub-pixels along a first direction, the color pixel unit comprises at least two color sub-pixel units, the color sub-pixel units comprise a plurality of color sub-pixels, the length of the white sub-pixel along the first direction is n1, the length of the color sub-pixel is n2, n2 is not more than 1/2n1, and the first direction and the second direction intersect; the color sub-pixels comprise blue sub-pixels, first color sub-pixels and second color sub-pixels, any blue sub-pixels are not adjacent, and in the same second pixel unit, the color sub-pixels with the same color are electrically connected through connecting parts. The area of the color sub-pixels in the second display area is reduced, the first direction is limited, the length of the color sub-pixels in the second display area is at least smaller than half of the length of the white sub-pixels, and the problems of light leakage and dark stripes of the display panel can be effectively reduced. In order to ensure that the brightness of the second display area is consistent with that of the first display area, the number of color sub-pixels in the second display area is increased, and meanwhile, in the same second pixel unit, the color sub-pixels with the same color are limited and are electrically connected through a connecting part, so that the problem that the aperture ratio is reduced due to the fact that the number of the color sub-pixels in the second display area is increased can be solved. Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above technical effects simultaneously.
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 schematic diagram of a display panel in the prior art;
FIG. 2 is an enlarged view of a portion of Q of FIG. 1;
FIG. 3 is a schematic view of a display panel structure according to the present invention;
FIG. 4 is a partial enlarged view of W in FIG. 3
FIG. 5 is an enlarged view of a portion E of FIG. 4;
FIG. 6 is a further enlarged view of a portion W of FIG. 3;
FIG. 7 is a cross-sectional view taken along line N-N' of FIG. 6;
FIG. 8 is a schematic structural diagram of the second electrode layer in FIG. 7;
FIG. 9 is a further enlarged view of a portion W of FIG. 3;
FIG. 10 is a cross-sectional view taken along line M-M' of FIG. 9;
FIG. 11 is a further enlarged view of a portion W of FIG. 3;
FIG. 12 is a further enlarged view of a portion E in FIG. 4;
fig. 13 is a schematic view of a display device according to the present 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 merely illustrative, and not limiting. 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 schematic structural diagram of a display panel in the prior art, and fig. 2 is a partial enlarged view of Q in fig. 1. In a display panel 100 provided by the prior art, the display panel 100 includes a display area AA, where the display area AA includes a first display area AA1 and a second display area AA 2; the first display area AA1 includes a plurality of first pixel units 01 arranged in an array, the second display area AA2 includes a plurality of second pixel units 02 arranged in an array, and the density of the first pixel units 01 in the first display area AA1 is greater than the density of the second pixel units 02 in the second display area AA 2; in the second direction Y, the second pixel unit 02 includes a white pixel unit 021 and a color pixel unit 022, and in the first direction X, the white pixel unit 021 includes a plurality of white sub-pixels 03, and the color pixel unit 022 includes at least a plurality of color sub-pixels 04; the first pixel unit 01 includes a plurality of first sub-pixels 011. Since the density of the first pixel units 01 in the first display area AA1 is greater than that of the second pixel units 02 in the second display area AA2, the luminance of the first display area AA1 is higher than that of the second display area AA2, and thus the area of the color sub-pixel 04 in the second pixel unit 02 is defined to be greater than that of the first sub-pixel 011 in the first display area AA1, so as to compensate for the fact that the luminance of the second display area AA2 is lower than that of the first display area AA1 because the density of the second pixel units 02 in the second display area AA2 is less than that of the first pixel units 01 in the first display area AA 1. However, the increase of the area of the color sub-pixel 04 in the second pixel unit 02 may cause the brightness difference between the sub-pixels to be obvious, for example, a general color sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the transmittance of the color barrier layer corresponding to the blue sub-pixel is lower than that of the red sub-pixel and the green sub-pixel, and further, when the area of the color sub-pixel 04 in the second pixel unit 02 is increased, the brightness of the blue sub-pixel is obviously lower than that of the red sub-pixel and the green sub-pixel, so that the display panel 100 may have the problems of light leakage and dark streaks.
In order to solve the above technical problem, the present invention provides a display panel and a display device. Embodiments of the display panel and the display device provided by the present invention will be described in detail below.
In this embodiment, please refer to fig. 3 and fig. 4, in which fig. 3 is a schematic diagram of a display panel structure according to the present invention, and fig. 4 is a partial enlarged view of W in fig. 3. The display panel 200 in this embodiment includes a display area AA including a first display area AA1 and a second display area AA 2; the first display area AA1 includes a plurality of first pixel units 1 arranged in an array, the second display area AA2 includes a plurality of second pixel units 2 arranged in an array, and the density of the first pixel units 1 in the first display area AA1 is greater than that of the second display areaDensity of second pixel cell 2 in AA 2; in the second direction Y, the second pixel unit 2 includes a white pixel unit 21 and a color pixel unit 22; along the first direction X, the white pixel unit 21 includes a plurality of white sub-pixels P0The color pixel unit 22 comprises at least two color sub-pixel units 221, the color sub-pixel unit 221 comprises a plurality of color sub-pixels P, and the white sub-pixel P is arranged along a first direction X0Is n1, the color sub-pixel P has a length of n2, n2 is equal to or less than 1/2n1, wherein the first direction X and the second direction Y intersect; the color sub-pixel P comprises a blue sub-pixel P1, a first color sub-pixel P2 and a second color sub-pixel P3, any blue sub-pixel P1 is not adjacent, and in the same second pixel unit 2, the color sub-pixels P of the same color are electrically connected through a connecting portion 3.
It will be appreciated that, in conjunction with fig. 1 and 2, the present application defines a white sub-pixel P along a first direction X0The length of the color sub-pixel P is n1, the length of the color sub-pixel P is n2, and n2 is less than or equal to 1/2n 1. The color sub-pixels 04 in the second display area AA2 in the prior art are at least divided into 2 color sub-pixels P, which effectively reduces the area of the color sub-pixels P in the second display area AA2, so that the problem that the color sub-pixels are visible when the second display area AA2 displays a white image in the prior art can be solved. Furthermore, since the color sub-pixels 04 in the prior art are divided into at least 2 color sub-pixels P in the present application, the number of the color sub-pixels P is increased, and the number of the color sub-pixels P is increased, so that the number of data lines for providing display signals for the color sub-pixels P is increased, and the aperture ratio may be reduced due to the light-tight data lines. Therefore, in the same second pixel unit 2, the sub-pixels P with the same color and the same color are electrically connected through the connecting portion 3, that is, the sub-pixels P with the same color can be electrically connected through the connecting portion 3, so that the signals can be synchronously transmitted, and the influence on the aperture ratio in the second display area AA2 caused by the increase of the number of the data lines for subsequently transmitting the signals for the sub-pixels P is reduced. It can be seen that the present application defines a white sub-pixel P along a first direction X0Has a length of n1, the color sub-pixel P has a length of n2, n2 is equal to or less than 1/2n1, wherein the first direction X and the second direction Y are opposite to each otherCrossing; the color sub-pixel P comprises a blue sub-pixel P1, any blue sub-pixel P1 is not adjacent, and in the same second pixel unit 2, the color sub-pixels P with the same color are electrically connected through a connecting part 3, so that the problems of light leakage and dark lines can be solved while the transmittance of the second display area AA2 is ensured.
Of these, only schematically shown in fig. 4, the white pixel unit 21 includes 3 white sub-pixels P0The color pixel unit 22 includes 2 color sub-pixel units 221, the color sub-pixel unit 221 includes 3 color sub-pixels P, and the white sub-pixel P is arranged along the first direction X0Has a length of n1, the color sub-pixel P has a length of n2, and n2 is 1/2n 1. It can be further understood that, in the prior art of the present application, the color sub-pixel 04 in the second display area AA2 is divided into two sub-pixels to form 2 color sub-pixels P, so as to effectively reduce the area of the color sub-pixel P in the second display area AA2, and at the same time, the blue sub-pixel P1 with lower brightness is not adjacent to each other, which can be equivalent to dispersedly disposing the dark line positions, so as to make the dark line invisible to human eyes, thereby solving the problems of light leakage and dark line caused by the overlarge color sub-pixel 04 in the second display area AA2 in the prior art. The number of each sub-pixel is not specifically required, and the color sub-pixel P in the second display area AA2 may be smaller than that in the prior art, and the specific degree of the smaller color sub-pixel P may be set according to actual situations, which is not described in detail below.
In some alternative embodiments, and continuing with fig. 3 and 5, fig. 5 is an enlarged view of a portion E of fig. 4. The display panel 200 provided in this embodiment further includes a plurality of data lines 4 extending along the second direction Y and arranged along the first direction X, and the color sub-pixels P of the same color in the second pixel unit 2 are connected to the same data line 4.
It is understood that the data lines 4 are used for providing display signals to the color sub-pixels P, so that the display panel 200 displays normally. In the prior art, one color sub-pixel in the same second pixel unit corresponds to one data line, and since the color sub-pixel P is reduced in the application itself and the number of the color sub-pixels P is increased, in the prior art, one color sub-pixel P corresponds to one data line 4, since the data line 4 is generally made of metal, and the metal is opaque, the increase of the number of the data lines 4 can reduce the aperture opening ratio of the display panel 200 and affect the display quality of the display panel 200. From this, this application sets up connecting portion 3 in with same second pixel unit 2, the same color sub pixel P electricity of colour is connected, and then in same second pixel unit 2, the same color sub pixel P of colour can utilize same data line 4 to provide the display data signal, makes display panel 200 normally show. Since the same color sub-pixels P can provide the display data signals by using the same data line 4, which is equivalent to reducing the number of the data lines 4 by more than half, the aperture ratio of the display panel 200 can be improved.
Optionally, the display panel 200 further includes a pixel driving circuit (not shown in the figure), the data display signal provided by the data line 4 is transmitted to the pixel driving circuit corresponding to the pixel, and the pixel driving circuit receives the signal and then enables the display panel to perform normal display. Since the same data line 4 can be used for the same color sub-pixels P in the same second pixel unit 2, which is equivalent to the same pixel driving circuit can be used for the same color sub-pixels P in the same second pixel unit 2. Therefore, the display panel 200 can effectively reduce the number of pixel driving circuits, thereby facilitating the circuit layout design of the display panel.
In some optional embodiments, referring to fig. 4, in the display panel 200 provided in this embodiment, in the same second pixel unit 2, the color sub-pixels P adjacent to the two color sub-pixel units 221 have the same color; the second pixel unit includes 2 connection portions 3.
It is to be understood that, since the color sub-pixel P includes the blue sub-pixel P1, the first color sub-pixel P2 and the second color sub-pixel P3, one color sub-pixel unit 221 may include one blue sub-pixel P1, one first color sub-pixel P2 and one second color sub-pixel P3. I.e. there are 3 groups of color sub-pixels P of the same color in one second pixel unit 2. The present application further defines that in the same second pixel unit 2, the color sub-pixels P adjacent to the two color sub-pixel units 221 have the same color, and the connection portion 3 is not required to be disposed between the two color sub-pixels P. Only two connection portions 3 need to be provided in one second pixel unit 2. Further, since the color pixel unit 22 is generally provided with a light shielding layer (not shown in the figure) on one side close to the white pixel unit 21, and the connection portion 3 is disposed at the position of the light shielding layer as far as possible in order not to affect the aperture ratio of the display panel 200, since one color pixel unit 22 only includes two adjacent light shielding layer positions, the connection portions 3 can be respectively disposed at the positions of the light shielding regions on the two sides of the color pixel unit 22 close to the white pixel unit 21, which not only can be beneficial to improving the aperture ratio of the display panel 200, but also can be beneficial to simplifying the wiring design in the display panel.
In some alternative embodiments, with reference to fig. 4, the present embodiment provides the display panel 200, wherein the first color sub-pixel P2 is a green sub-pixel, and the second color sub-pixel P3 is a red sub-pixel; in the first direction X, the color pixel unit 22 includes a green sub-pixel P2, a blue sub-pixel P1, a red sub-pixel P3, a red sub-pixel P3, a blue sub-pixel P1, and a green sub-pixel P2 in this order; alternatively, the red sub-pixel P3, the blue sub-pixel P1, the green sub-pixel P2, the green sub-pixel P2, the blue sub-pixel P1 and the red sub-pixel P3 are included in this order.
Fig. 4 only illustrates that, in the first direction X, the color pixel unit 22 sequentially includes a green sub-pixel P2, a blue sub-pixel P1, a red sub-pixel P3, a red sub-pixel P3, a blue sub-pixel P1, and a green sub-pixel P2.
It is understood that one color sub-pixel unit 221 may include one blue sub-pixel P1, one first color sub-pixel P2, and one second color sub-pixel P3, since the luminance of the blue sub-pixel P1 is lower than the luminance of the other two color sub-pixels P. This application is through making colour subpixel P's area little, and it is not adjacent to set up the lower blue subpixel P1 of luminance simultaneously, can be equivalent to and set up dark line position dispersion, and then reach the invisible of people's eye to can solve among the prior art in the second display area AA2 because the problem of light leak and dark line that colour subpixel 04 is too big and lead to. Furthermore, the present invention only needs to ensure that the blue sub-pixels P1 are not adjacent to each other, and the other two color sub-pixels P may be adjacent to each other or not adjacent to each other.
In some alternative embodiments, as shown in fig. 3 and fig. 6, fig. 6 is a further partial enlarged view of W in fig. 3, and this embodiment provides a display panel 200 in which any color sub-pixel P with the same color is not adjacent; the second pixel unit 2 includes 3 connection portions 3, and at most 2 connection portions 3 are disposed in the same layer.
It is understood that, in the present application, any color sub-pixel P with the same color may be disposed not adjacent to each other, since one color sub-pixel unit 221 may include one blue sub-pixel P1, one first color sub-pixel P2 and one second color sub-pixel P3, that is, one color pixel unit 22 includes three groups of color sub-pixels P with the same color, and 3 connecting portions 3 are further required to electrically connect the color sub-pixels P with the same color. Since the connecting portions 3 need to be disposed at the light-shielding region between the color pixel units 22 and the white pixel units 21 so as not to affect the aperture ratio of the display panel, one color pixel unit 22 only includes two adjacent light-shielding regions with the white pixel units 21, and at most two connecting portions 3 disposed in one second pixel unit 2 are disposed at the same layer and located at the light-shielding regions between two sides of one color pixel unit 22 and the white pixel units 21. The third connecting portion 3 is required to be provided for electrically connecting the color sub-pixels P of the same third color, and the connecting portion may be provided in a different layer, that is, in a light shielding region between the color pixel unit 22 and the white pixel unit 21, but in a different layer from the connecting portion 3 at the position, and the connecting portions at the same light shielding region may be isolated from each other by an insulating layer to prevent short circuit. Of course, the three connection portions 3 may be provided in different layers. The specific arrangement mode of the connecting parts 3 is not required in the invention, and the arrangement of at most 2 connecting parts 3 on the same layer can be ensured, which is not described in detail below.
In some alternative embodiments, as shown in FIGS. 3, 6 and 7, FIG. 7 is a cross-sectional view taken along line N-N' of FIG. 6. In the display panel 200 provided in this embodiment, along a direction perpendicular to the display panel 200, the display panel includes a first metal layer M1, a second metal layer M2, and an electrode layer M3 separated by an insulating layer L, and the electrode layer M3 includes a first electrode layer M31 and a second electrode layer M32; the first metal layer M1 includes data lines 4 arranged along the first direction X and extending in the second direction Y, and the second metal layer M2 includes touch lines 5 arranged along the first direction X and extending in the second direction Y; the connection part 3 is located in at least one of the first metal layer M1, the second metal layer M2, the first electrode layer M31, or the second electrode layer M32. The first electrode layer M31 may be a pixel electrode layer, the second electrode layer M32 may be a common electrode layer, or other electrode layers, and the specific structural configuration may be set according to the actual situation.
It can be understood that the connection portion 3 may be disposed in the same layer as at least one of the first metal layer M1, the second metal layer M2, the first electrode layer M31, or the second electrode layer M32, that is, the connection portion 3 may be formed in the same process as at least one of the first metal layer M1, the second metal layer M2, the first electrode layer M31, or the second electrode layer M32, which is beneficial to reducing the manufacturing process of the display panel. Fig. 7 only illustrates that the connection portion 3 and the first electrode layer M31 are disposed at the same layer.
Further, the connection part 3 is located in at least one of the first metal layer M1, the second metal layer M2, the first electrode layer M31, or the second electrode layer M32. Several ways may be included:
the first method comprises the following steps: the equal different layer setting of connecting portion 3, no matter be including 2 connecting portion 3 or 3 connecting portion 3 in a second pixel unit 2 promptly, the equal different layer setting of connecting portion in same second pixel unit 2 specifically sets up at which rete, and concrete requirement is not done to this application, can set up according to actual conditions.
And the second method comprises the following steps: part of the connection portions 3 are arranged in the same layer. When including 3 connecting portion 3 in a second pixel unit 2, wherein two connecting portion 3 are the same layer setting, and another connecting portion 2 is different layer setting with these two connecting portion 2 that set up with the layer, specifically sets up at which rete, and this application does not do the specification and requires, can set up according to actual conditions.
And the third is that: connecting portion 3 all sets up with the layer, further can set up each connecting portion 3 is insulating, can effectively avoid each connecting portion 3 problem of short circuit to appear. When one second pixel unit 2 includes 2 connection portions 3, the two connection portions 3 are disposed on the same layer, specifically on which film layer, and the present application does not make a specific requirement, and can be disposed according to an actual situation.
In some alternative embodiments, as shown in fig. 7 and fig. 8, fig. 8 is a schematic structural diagram of the second electrode layer in fig. 7. In the display panel 200 provided in this embodiment, the second electrode layer M32 includes the second electrode 6, the second electrode 6 includes the hollow portion 61, the connection portion 3 and the second electrode layer M32 are disposed in the same layer, and the connection portion 3 is located in the hollow portion 61; in the second direction Y, the connection portion 3 and the second electrode 6 have a spacing d1, 2.0 μm < d1<4.5 μm, and the connection portion 3 has a width d2, 2.0 μm < d2<5.0 μm.
It can be understood that the connection portion 3 and the second electrode layer M32 are disposed on the same layer, the connection portion 3 is located in the hollow portion 61 of the second electrode 6, that is, the connection portion 3 is formed in the second electrode 6, and the connection portion 3 and the second electrode can be manufactured by the same material process, which is beneficial to reducing the manufacturing process of the display panel. And the connection portion 3 is provided in the hollow portion 61, it is possible to avoid the electrical connection between the connection portion 3 and the second electrode 6 from forming a short circuit. Furthermore, the invention is arranged that in the second direction Y, the connecting portion 3 and the second electrode 6 have a distance d1, 2.0 μm < d1<4.5 μm, and the connecting portion 3 has a width d2, 2.0 μm < d2<5.0 μm, so that the connecting bridge 3 can electrically connect two sub-pixels with the same color, and simultaneously prevent short circuit from occurring between the two sub-pixels and the second electrode 6, and the short circuit can affect the effect of the connecting portion 3.
However, if the distance d1 between the connection portion 3 and the second electrode 6 is smaller than 2.0 μm, the gap between the connection portion 3 and the second electrode 6 is short, which is likely to cause short circuit, and the display effect is affected. If the distance d1 between the connecting portion 3 and the second electrode 6 is larger than 4.5 μm, the effective area of the second electrode 6 is reduced, which affects the use effect of the second electrode 6. Further, if the width d2 of the connection portion 3 is less than 2.0 μm, the diameter of the connection portion 3 is short, and the impedance is large. If the width d2 of the connection portion 3 is larger than 5.0 μm, the diameter of the connection portion 3 is large, which may affect the aperture ratio. In summary, the present invention is configured such that, in the second direction Y, the connection portion 3 and the second electrode 6 have a distance d1, 2.0 μm < d1<4.5 μm, and the width of the connection portion 3 is d2, 2.0 μm < d2<5.0 μm.
In some alternative embodiments, shown in fig. 9 and 10, fig. 9 is a further enlarged view of a portion W in fig. 3, and fig. 10 is a cross-sectional view taken along line M-M' in fig. 9. The display panel 200 provided in this embodiment: in the first direction X, the connection portion 3 includes a plurality of sub-connection portions 31 and a bridge 32 for connecting adjacent sub-connection portions 31, the bridge 32 is disposed in a different layer from the sub-connection portions 31, and the sub-connection portions 31 are disposed in a same layer as the first metal layer M1 or the second metal layer M2; the orthographic projection of the sub-connecting part 31 on the plane of the first electrode layer M31 is not overlapped with the orthographic projection of the data line 4 and the touch line 5 on the plane of the first electrode layer M31, and the orthographic projection of the bridge 32 on the plane of the first electrode layer M31 is at least partially overlapped with the orthographic projection of the data line 4 and the touch line 5 on the plane of the first electrode layer. Fig. 10 only shows that the sub-connection portion 31 is disposed on the same layer as the second metal layer M2, and the bridge 32 is disposed on the same layer as the first electrode layer M31.
It can be understood that, since the extending direction of the connecting portion 3 intersects the extending direction of the data line 4 and the touch line 5, when the connecting portion 3 is disposed on the same layer as the first metal layer M1 or the second metal layer M2, the connecting portion 3 is caused to intersect the data line 4 and the touch line 5, and thus the short circuit is caused, which affects the display effect of the display panel, and the connecting portion 3 is further divided into two parts, the main part is the sub-connecting portion 31, the sub-connecting portion 31 is located on the first metal layer M1 or the second metal layer M2, the auxiliary part is the bridge 32, the bridge 32 represents a part that may overlap the data line 4 and the touch line 5, and the bridge 32 is disposed on a different layer from the sub-connecting portion 31, that is, the bridge 32 is disposed on a different layer from the data line 4 and the touch line 5, which can ensure that the connecting portion 3 is not shorted with the data line 4. Wherein the bridge 32 may be electrically connected to the sub-connection portion 31 through a via.
In some alternative embodiments, referring to fig. 9 and fig. 10, the display panel 200 of the present embodiment is provided, wherein the bridge 32 and the first electrode layer M31 are disposed on the same layer.
It is understood that the bridge 32 is disposed in a different layer from the sub-connection 31, and the sub-connection 31 is disposed in the same layer as the first metal layer M1 or the second metal layer M2. Because the first electrode layer M31 is closer to the first metal layer M1 and the second metal layer M2 relative to the second electrode layer M32, and the bridge 32 and the first electrode layer M31 are arranged on the same layer, the depth of the through hole between the bridge 32 and the sub-connection portion 31 can be reduced, the difficulty of the production process can be reduced, and the production yield of the display panel of the embodiment can be improved. Furthermore, the bridge 32 and the first electrode layer M31 are formed in the same process, which is beneficial to reducing the manufacturing process of the display panel.
In some alternative embodiments, shown in conjunction with FIG. 11, FIG. 11 is a further enlarged view of a portion W of FIG. 3. The present embodiment provides the display panel 200 in which the white pixel cells 21 and the color pixel cells 22 are alternately arranged along the first direction X and/or along the second direction Y. The first method comprises the following steps: the white pixel cells 21 are alternately arranged with the color pixel cells 22 along the first direction X.
And the second method comprises the following steps: in the second direction Y, the white pixel cells 21 and the color pixel cells 22 are alternately arranged.
And the third is that: the white pixel cells 21 and the color pixel cells 22 are alternately arranged along the first direction X, and the white pixel cells 21 and the color pixel cells 22 are alternately arranged along the second direction Y.
It can be understood that, in the present application, the white pixel units 21 and the color pixel units 22 are alternately arranged along the first direction X and/or along the second direction Y, which may be beneficial to prevent the white pixel units 21 from gathering to cause the problems of light leakage of the display panel. Furthermore, the third arrangement mode is to define all directions, and the white pixel units 21 and the color pixel units 22 are alternately arranged, which is favorable for further preventing the white pixel units 21 from gathering to cause the problems of light leakage and the like of the display panel, and improving the display quality of the display panel.
In some alternative embodiments, shown in conjunction with fig. 4 and 12, fig. 12 is a further enlarged view of a portion E of fig. 4. The display panel 200 provided in this embodiment: in the first direction X, the length of the blue sub-pixel P1 is a1, the length of the first color sub-pixel P2 is b1, and the length of the second color sub-pixel P3 is c1, where a1 ═ b1 ═ c 1; in the second direction Y, the length of the blue sub-pixel P1 is a2, the length of the first color sub-pixel P2 is b2, and the length of the second color sub-pixel P3 is c2, wherein a2 is greater than or equal to b2, and a2 is greater than or equal to c 2.
It can be understood that, since the luminance of the blue sub-pixel P1 is lower than the luminance of the first color sub-pixel P2 and the second color sub-pixel P3, the area of the blue sub-pixel P1 can be increased to compensate for the low luminance of the blue sub-pixel P1. Increasing the area of the blue subpixel P1 includes two ways, one is to increase the width in the first direction X and one is to increase the width in the second direction Y. Since increasing the width in the first direction X increases the width of the dark line, so that the dark line is obvious, the present application selects to increase the width of the blue sub-pixel P1 in the second direction Y, so as to increase the effective area of the blue sub-pixel P1 as much as possible, thereby compensating the dark line problem caused by the low brightness of the blue sub-pixel P1.
In some alternative embodiments, shown in conjunction with fig. 4 and 12, fig. 12 is a further enlarged view of a portion E of fig. 4. The display panel 200 provided in this embodiment further includes a substrate base plate 00; the second pixel unit further includes an opening area T including a first opening area T1 disposed opposite to the blue sub-pixel P1, a second opening area T2 disposed opposite to the first color sub-pixel P2, and a third opening area T3 disposed opposite to the second color sub-pixel P3; wherein an area of an orthogonal projection of the first opening region T1 on the plane of the substrate base plate 00 is s1, an area of an orthogonal projection of the second opening region T2 on the plane of the substrate base plate 00 is s2, an area of an orthogonal projection of the third opening region T3 on the plane of the substrate base plate 00 is s3, s 1: s 2: s3 is 2:1: 1.
It can be understood that, since the luminance of the blue sub-pixel P1 is lower than the luminance of the first color sub-pixel P2 and the second color sub-pixel P3, the area of the blue sub-pixel P1 can be increased to compensate for the low luminance of the blue sub-pixel P1. Further defined on the basis that a 1-b 1-c 1, a2 ≧ b2, and a2 ≧ c2, s 1: s 2: s3 is 2:1:1, so as to increase the effective area of the blue sub-pixel P1 as much as possible, thereby compensating the dark line problem caused by the low brightness of the blue sub-pixel P1.
Optionally, the orthographic projection of the first, second and third opening regions T1, T2 and T3 on the plane of the substrate base plate 00 has at least one of a trapezoid, a triangle, a polygon and an ellipse. The shapes of the orthographic projections of the first opening area T1, the second opening area T2 and the third opening area T3 on the plane of the substrate base plate 00 are not required to be specific, and can be specifically set according to actual conditions, and details are not described below.
The present invention further provides a display device 300 including the display panel 200 according to any of the above embodiments of the present invention. Fig. 13 is a schematic view of a display device according to the present invention, and referring to fig. 13, a display device 300 includes the display panel 200 according to any of the embodiments of the present invention. The embodiment of fig. 13 only takes a mobile phone as an example to describe the display device 300, and it should be understood that the display device 300 provided in the embodiment of the present invention may be other display devices with a display function, such as a computer, a television, a vehicle-mounted display device, and the present invention is not limited thereto. The display device 300 provided in the embodiment of the present invention has the beneficial effects of the display panel 200 provided in the embodiment of the present invention, and specific reference is specifically made to the detailed description of the display device in the foregoing embodiments, which is not repeated herein.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
compared with the prior art, the display panel and the display device provided by the invention have the advantages that along the second direction, the second pixel unit comprises a white pixel unit and a color pixel unit; the white pixel unit comprises a plurality of white sub-pixels along a first direction, the color pixel unit comprises at least two color sub-pixel units, the color sub-pixel units comprise a plurality of color sub-pixels, the length of the white sub-pixel along the first direction is n1, the length of the color sub-pixel is n2, n2 is not more than 1/2n1, and the first direction and the second direction intersect; the color sub-pixels comprise blue sub-pixels, first color sub-pixels and second color sub-pixels, any blue sub-pixels are not adjacent, and in the same second pixel unit, the color sub-pixels with the same color are electrically connected through connecting parts. The area of the color sub-pixels in the second display area is reduced, the first direction is limited, the length of the color sub-pixels in the second display area is at least smaller than half of the length of the white sub-pixels, and the problems of light leakage and dark stripes of the display panel can be effectively reduced. In order to ensure that the brightness of the second display area is consistent with the quantity of the first display area, the number of color sub-pixels in the second display area is increased, and meanwhile, in the same second pixel unit, the color sub-pixels with the same color are limited and are electrically connected through a connecting part, so that the problem that the aperture ratio is reduced due to the fact that the number of the color sub-pixels in the second display area is increased can be solved.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present 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 (13)
1. A display panel comprising a display area, the display area comprising a first display area and a second display area;
the first display area comprises a plurality of first pixel units arranged in an array, the second display area comprises a plurality of second pixel units arranged in an array, and the density of the first pixel units in the first display area is greater than that of the second pixel units in the second display area;
in a second direction, the second pixel unit comprises a white pixel unit and a color pixel unit;
the white pixel unit comprises a plurality of white sub-pixels along a first direction, the color pixel unit comprises at least two color sub-pixel units, the color sub-pixel units comprise a plurality of color sub-pixels, the length of the white sub-pixel along the first direction is n1, the length of the color sub-pixel is n2, n2 is not more than 1/2n1, and the first direction and the second direction intersect;
the color sub-pixels comprise blue sub-pixels, first color sub-pixels and second color sub-pixels, any blue sub-pixels are not adjacent, and in the same second pixel unit, the color sub-pixels with the same color are electrically connected through connecting parts.
2. The display panel according to claim 1, comprising a plurality of data lines arranged along the second direction extending in the first direction, wherein the color sub-pixels of the same color in the second pixel unit are connected to the same data line.
3. The display panel according to claim 1, wherein in the same second pixel unit, the color sub-pixels adjacent to the two color sub-pixel units have the same color;
the second pixel unit includes 2 of the connection parts.
4. The display panel of claim 3, wherein the first color sub-pixel is a green sub-pixel and the second color sub-pixel is a red sub-pixel;
along the first direction, the color pixel unit sequentially comprises the green sub-pixel, the blue sub-pixel, the red sub-pixel, the blue sub-pixel and the green sub-pixel;
or, the red sub-pixel, the blue sub-pixel, the green sub-pixel, the blue sub-pixel and the red sub-pixel are sequentially included.
5. The display panel of claim 1, wherein the color sub-pixels of any color are not adjacent;
the second pixel unit comprises 3 connecting parts, and at most 2 connecting parts are arranged in the same layer.
6. The display panel according to claim 1, comprising, in a direction perpendicular to the display panel, a first metal layer, a second metal layer, and an electrode layer separated by an insulating layer, the electrode layer comprising a first electrode layer and a second electrode layer;
the first metal layer comprises data lines which are arranged along the first direction and extend along the second direction, and the second metal layer comprises touch lines which are arranged along the first direction and extend along the second direction;
the connecting portion is located in at least one of the first metal layer, the second metal layer, the first electrode layer, or the second electrode layer.
7. The display panel according to claim 6, wherein the second electrode layer comprises a second electrode, the second electrode comprises a hollow portion, the connecting portion and the second electrode layer are disposed on the same layer, and the connecting portion is located in the hollow portion;
along the second direction, the connecting part and the second electrode have a spacing d1, 2.0< d1<4.5 μm, and the connecting part has a width d2, 2.0< d2<5.0 μm.
8. The display panel according to claim 6, wherein the connecting portion comprises a plurality of sub-connecting portions and a bridge for connecting adjacent sub-connecting portions along the first direction, the bridge is disposed in a different layer from the sub-connecting portions, and the sub-connecting portions are disposed in a same layer as the first metal layer or the second metal layer;
the orthographic projection of the sub-connecting part on the plane where the first electrode layer is located is not overlapped with the orthographic projection of the data line and the orthographic projection of the touch line on the plane where the first electrode layer is located, and the orthographic projection of the bridge spanning on the plane where the first electrode layer is located is at least partially overlapped with the orthographic projection of the data line and the touch line on the plane where the first electrode layer is located.
9. The display panel of claim 8, wherein the bridge is disposed on the same layer as the first electrode layer.
10. The display panel according to claim 1, wherein the white pixel cells alternate with the color pixel cells along the first direction and/or along the second direction.
11. The display panel of claim 1, wherein along the first direction, the blue sub-pixel has a length of a1, the first color sub-pixel has a length of b1, and the second color sub-pixel has a length of c1, wherein a1 ═ b1 ═ c 1;
in the second direction, the length of the blue sub-pixel is a2, the length of the first color sub-pixel is b2, and the length of the second color sub-pixel is c2, wherein a2 is greater than or equal to b2, and a2 is greater than or equal to c 2.
12. The display panel according to claim 11, further comprising a substrate base plate;
the second pixel unit further includes an open area including a first open area disposed opposite to the blue sub-pixel, a second open area disposed opposite to the first color sub-pixel, and a third open area disposed opposite to the second color sub-pixel;
wherein an orthographic projection area of the first opening area on the plane of the substrate base plate is s1, an orthographic projection area of the second opening area on the plane of the substrate base plate is s2, an orthographic projection area of the third opening area on the plane of the substrate base plate is s3, s 1: s 2: s3 is 2:1: 1.
13. A display device comprising the display panel according to any one of claims 1 to 12.
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| CN112216217B (en) | 2022-10-04 |
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