CN113488448B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113488448B CN113488448B CN202110704439.2A CN202110704439A CN113488448B CN 113488448 B CN113488448 B CN 113488448B CN 202110704439 A CN202110704439 A CN 202110704439A CN 113488448 B CN113488448 B CN 113488448B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/50—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor for integrated circuit devices, e.g. power bus, number of leads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
Abstract
The invention discloses a display panel and a display device, which relate to the technical field of display and comprise: a substrate base plate; the pixel unit is positioned on one side of the substrate and comprises at least two sub-pixels arranged along a first direction, and each sub-pixel comprises a driving circuit and a light-emitting element electrically connected with the driving circuit; the sub-pixel comprises a first sub-pixel and a second sub-pixel, and the luminous efficiency of the luminous element of the first sub-pixel is smaller than that of the luminous element of the second sub-pixel; the driving circuit comprises a wiring part extending along a second direction, and the width of the wiring part of the first sub-pixel is larger than that of the wiring part of the second sub-pixel in the first direction, wherein the first direction and the second direction are intersected. The invention solves the problem that the luminous efficiency of the luminous elements in partial sub-pixels is different and the display effect is influenced in the prior art.
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
Compared with an OLED (Organic Light Emitting Diode) display device which is also used for white Light Emitting display, a Micro LED (Light Emitting Diode) display device has the advantages of being all solid, long in service life, and relatively stable in Light Emitting material due to the fact that the Light Emitting material is not easily affected by the external environment.
However, in the Micro LED display devices, the Micro LEDs with different emission colors have different emission efficiencies, which affects the display effect of the display screen.
Disclosure of Invention
In view of the above, the present invention provides a display panel and a display device to solve the problem in the prior art that the display effect is affected by the different light emitting efficiencies of the light emitting elements in some sub-pixels.
The present invention provides a display panel including: a substrate base plate; the pixel unit is positioned on one side of the substrate and comprises at least two sub-pixels arranged along a first direction, and each sub-pixel comprises a driving circuit and a light-emitting element electrically connected with the driving circuit; the sub-pixel comprises a first sub-pixel and a second sub-pixel, and the luminous efficiency of the luminous element of the first sub-pixel is smaller than that of the luminous element of the second sub-pixel; the driving circuit comprises a wiring part extending along a second direction, and the width of the wiring part of the first sub-pixel is larger than that of the wiring part of the second sub-pixel in the first direction, wherein the first direction and the second direction are intersected.
Based on the same idea, the invention also provides a display device, which comprises the display panel.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
in the display panel provided by the invention, the sub-pixels include a first sub-pixel and a second sub-pixel, the colors of the light emitted by the light emitting element of the first sub-pixel and the light emitted by the light emitting element of the second sub-pixel are different, and based on the limitation of the material, the light emitting element of the first sub-pixel and the light emitting element of the second sub-pixel have the condition that the light emitting efficiency of the light emitting element of the first sub-pixel is lower than that of the light emitting element of the second sub-pixel under the condition that the driving currents are the same, so that the light emitting luminance of the light emitting element of the first sub-pixel is lower than that of the light emitting element of the second sub-pixel, and the display effect of the display panel is influenced. The driving circuit comprises a wiring part extending along the second direction, the wiring part provides an electric signal for the light-emitting unit electrically connected with the wiring part, the width of the wiring part of the first sub-pixel is larger than that of the wiring part of the second sub-pixel in the first direction, and the first direction and the second direction are intersected. In the first direction, the width of the routing part of the first sub-pixel is greater than that of the routing part of the second sub-pixel, so that both the voltage drop and the resistance on the routing part of the first sub-pixel are less than those on the routing part of the second sub-pixel, that is, the voltage drop and the resistance on the routing part of the first sub-pixel are reduced by increasing the width of the routing part of the first sub-pixel, the current for driving the light-emitting element of the first sub-pixel is increased, and the light-emitting brightness of the light-emitting element of the first sub-pixel is increased, so that the light-emitting brightness of the light-emitting element of the first sub-pixel and the light-emitting brightness of the light-emitting element of the second sub-pixel tend to be consistent, the problem that the light-emitting brightness of the light-emitting element of the first sub-pixel is less than that of the light-emitting element of the second sub-pixel caused by the light-emitting efficiency of the light-emitting element of the first sub-pixel is less than that of the light-emitting element of the second sub-pixel is effectively solved, and the display effect of the display panel is improved.
Of course, it is not necessary for any product in which the present invention is practiced to be specifically designed to achieve all of the above-described 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 plan view of a display panel according to the present invention;
FIG. 2 is a schematic plan view of a pixel unit according to the present invention;
FIG. 3 is a schematic diagram of a driving circuit according to the present invention;
FIG. 4 is a schematic plan view of another display panel provided by the present invention;
FIG. 5 is a schematic plan view of another pixel cell provided by the present invention;
FIG. 6 is a schematic structural diagram of a light-emitting device according to the present invention;
FIG. 7 is a schematic plan view of another display panel provided by the present invention;
FIG. 8 is a schematic plan view of another display panel provided by the present invention;
FIG. 9 is a schematic plan view of another pixel unit provided by the present invention;
FIG. 10 is a schematic plan view of another pixel unit provided by the present invention;
fig. 11 is a schematic structural diagram of a display device according to an embodiment of 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 exemplary only and not as 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 plan view of a display panel provided by the present invention, fig. 2 is a schematic plan view of a pixel unit provided by the present invention, and referring to fig. 1 and fig. 2, the present embodiment provides a display panel, which includes a substrate 10, where the substrate 10 may be a rigid substrate, and the rigid substrate may be a glass substrate, for example. The base substrate 10 may be a flexible substrate, and the flexible substrate may be a polyimide substrate, for example.
The display panel further comprises a plurality of pixel units P arranged in an array, the pixel units P are located on one side of the substrate 10, each pixel unit P comprises at least two sub-pixels P10 arranged along the first direction X, the color of light emitted by each sub-pixel P10 in the same pixel unit P is different, and after the light emitted by each sub-pixel P10 in the same pixel unit P is mixed, the pixel unit P emits white light. The sub-pixel P10 includes a driving circuit 20 and a light emitting element 30 electrically connected to the driving circuit 20, and the driving circuit 20 is configured to drive the light emitting element 30 electrically connected thereto to emit light to display a picture to be displayed.
In some alternative embodiments, the light emitting element 30 comprises a Micro light emitting diode (Micro-LED), which has the advantages of being all solid state, long-lived, and relatively stable with the luminescent material not being susceptible to external environmental influences. It should be noted that in other embodiments of the present invention, the light emitting unit 30 may further include an organic light emitting unit, a liquid crystal display light emitting unit, a Mini-LED, or other types of light emitting units known to those skilled in the art.
The sub-pixel P10 includes a first sub-pixel P11 and a second sub-pixel P12, the colors of the light emitted by the light emitting element 31 of the first sub-pixel P11 and the light emitting element 32 of the second sub-pixel P12 are different, and based on the limitation of the material itself, the light emitting efficiency of the light emitting element 31 of the first sub-pixel P11 is lower than that of the light emitting element 32 of the second sub-pixel P12 under the condition that the driving current is the same in the light emitting element 31 of the first sub-pixel P11 and the light emitting element 32 of the second sub-pixel P12, so that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 is lower than that of the light emitting element 32 of the second sub-pixel P12, and the display effect of the display panel is affected.
The driving circuit 20 includes a wire portion 21 extending along a second direction Y, the wire portion 21 providing an electrical signal to the light emitting unit 30 electrically connected thereto, and a width of a wire portion 21a of the first sub-pixel P11 is greater than a width of a wire portion 21b of the second sub-pixel P12 in a first direction X, wherein the first direction X and the second direction Y intersect. Optionally, the first direction X and the second direction Y are perpendicular. In the first direction X, the width of the routing portion 21a of the first sub-pixel P11 is greater than the width of the routing portion 21b of the second sub-pixel P12, so that both the voltage drop and the resistance on the routing portion 21a of the first sub-pixel P11 are less than those on the routing portion 21b of the second sub-pixel P12, that is, by increasing the width of the routing portion 21a of the first sub-pixel P11, the voltage drop and the resistance on the routing portion 21a of the first sub-pixel P11 are reduced, and the current for driving the light emitting element 31 of the first sub-pixel P11 is increased, so that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 and the light emitting luminance of the light emitting element 32 of the second sub-pixel P12 tend to be consistent, thereby effectively solving the problem of improving the display panel display effect that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 is less than the light emitting luminance of the light emitting element 32 of the second sub-pixel P12 due to the light emitting efficiency of the light emitting element 31 of the light emitting element P11.
Fig. 3 is a schematic structural diagram of a driving circuit provided in the present invention, and referring to fig. 3, the driving circuit includes a thin film transistor, a storage capacitor, and other circuit elements known to those skilled in the art besides the routing portion 21, and the present invention is not described herein again. It should be noted that fig. 3 exemplarily shows a schematic structural diagram of a driving circuit, in other embodiments of the present invention, the driving circuit may also adopt other structures, and the present invention is not limited by this.
With continued reference to fig. 1 and fig. 2, in some alternative embodiments, in the first sub-pixel P11 and the second sub-pixel P12, the sizes of the elements in the driving circuit 20 except for the trace portion 21 may be set to be the same, so as not to affect the performance of the elements in the driving circuit 20 except for the trace portion 21. Since the width of the routing portion 21a of the first sub-pixel P11 is greater than the width of the routing portion 21b of the second sub-pixel P12 in the first direction X, the width of the driving circuit 20a of the first sub-pixel P11 is greater than the width of the driving circuit 20b of the second sub-pixel P12 in the first direction X in order not to affect the arrangement of the elements in the sub-pixel P10.
With continued reference to fig. 1 and fig. 2, in some alternative embodiments, in the first sub-pixel P11 and the second sub-pixel P12, the sizes of the components in the sub-pixel P10 except the trace portion 21 may be set to be the same, so as not to affect the performance of the components in the sub-pixel P10 except the trace portion 21. Since the width of the routing portion 21a of the first sub-pixel P11 is greater than the width of the routing portion 21b of the second sub-pixel P12 in the first direction X, the width of the first sub-pixel P11 is greater than the width of the second sub-pixel P12 in the first direction X in order not to affect the arrangement of the elements in the sub-pixel P10.
Fig. 4 is a schematic plan view of another display panel provided by the present invention, fig. 5 is a schematic plan view of another pixel unit provided by the present invention, referring to fig. 4 and fig. 5, in some alternative embodiments, the sub-pixel P further includes a third sub-pixel P13, the color of the light emitted by the light emitting element 31 of the first sub-pixel P11 and the color of the light emitted by the light emitting element 33 of the third sub-pixel P13 are different, and based on the limitation of the material itself, the light emitting element 31 of the first sub-pixel P11 and the light emitting element 33 of the third sub-pixel P13 have the condition that the light emitting efficiency of the light emitting element 31 of the first sub-pixel P11 is smaller than the light emitting efficiency of the light emitting element 33 of the third sub-pixel P13 under the condition that the driving current is the same, so that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 is smaller than the light emitting element 33 of the third sub-pixel P13, and the display effect of the display panel is affected.
In the first direction X, the width of the routing portion 21a of the first sub-pixel P11 is greater than the width of the routing portion 21c of the third sub-pixel P13, so that both the voltage drop and the resistance on the routing portion 21a of the first sub-pixel P11 are less than the voltage drop and the resistance on the routing portion 21c of the third sub-pixel P13, that is, by increasing the width of the routing portion 21a of the first sub-pixel P11, the voltage drop and the resistance on the routing portion 21a of the first sub-pixel P11 are reduced, and the current for driving the light emitting element 31 of the first sub-pixel P11 is increased, so as to increase the light emitting luminance of the light emitting element 31 of the first sub-pixel P11, and the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 and the light emitting luminance of the light emitting element 33 of the third sub-pixel P13 tend to be consistent, thereby effectively solving the problem of improving the display panel display effect that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 is less than the light emitting luminance of the light emitting element 33 of the third sub-pixel P13.
With continued reference to fig. 4 and 5, in some alternative embodiments, in the first sub-pixel P11 and the third sub-pixel P13, the sizes of the elements in the driving circuit 20 except for the trace portion 21 may be set to be the same, so as not to affect the performance of the elements in the driving circuit 20 except for the trace portion 21. Since the width of the routing portion 21a of the first subpixel P11 is greater than the width of the routing portion 21c of the third subpixel P13 in the first direction X, the width of the driving circuit 20a of the first subpixel P11 is greater than the width of the driving circuit 20c of the third subpixel P13 in the first direction X in order not to affect the arrangement of the elements in the subpixel P10.
With continued reference to fig. 4 and 5, in some alternative embodiments, in the first sub-pixel P11 and the third sub-pixel P13, the sizes of the elements in the sub-pixel P10 except for the trace portion 21 may be set to be the same, so as not to affect the performance of the elements in the sub-pixel P10 except for the trace portion 21. Since the width of the routing portion 21a of the first sub-pixel P11 is greater than the width of the routing portion 21c of the third sub-pixel P13 in the first direction X, the width of the first sub-pixel P11 is greater than the width of the third sub-pixel P13 in the first direction X in order not to affect the arrangement of the elements in the sub-pixel P10.
In some alternative embodiments, the color of the light emitted from the light emitting element 32 of the second sub-pixel P12 is different from the color of the light emitted from the light emitting element 33 of the third sub-pixel P13. That is, the pixel unit P includes a first sub-pixel P11, a second sub-pixel P12 and a third sub-pixel P13, the colors of the light emitted by the first sub-pixel P11, the second sub-pixel P12 and the third sub-pixel P13 in the same pixel unit P are different, and after the light emitted by the first sub-pixel P11, the second sub-pixel P12 and the third sub-pixel P13 in the same pixel unit P is mixed, the pixel unit P emits white light.
In some alternative embodiments, the first sub-pixel P11 is a red sub-pixel, the second sub-pixel P12 is a green sub-pixel, and the third sub-pixel P13 is a blue sub-pixel, or the first sub-pixel P11 is a red sub-pixel, the second sub-pixel P12 is a blue sub-pixel, and the third sub-pixel P13 is a green sub-pixel.
With continued reference to fig. 4 and 5, in some alternative embodiments, the pixel unit P includes a first subpixel P11, a second subpixel P12, and a third subpixel P13 arranged in sequence along the first direction X.
The sub-pixel P10 includes a first edge S1, and the first edge S1 is located at one side of the sub-pixel P10 along the first direction X. The first edge S1a of the first sub-pixel P11 is located on a side of the first sub-pixel P11 away from the second sub-pixel P12, the first edge S1b of the second sub-pixel P12 is located on a side of the second sub-pixel P12 close to the first sub-pixel P11, and the first edge S1c of the third sub-pixel P13 is located on a side of the third sub-pixel P13 close to the first sub-pixel P11.
In the first direction X, a distance between the first edge S1a of the first subpixel P11 and the first edge S1b of the second subpixel P12 adjacent thereto is P1, a distance between the first edge S1b of the second subpixel P12 and the first edge S1c of the third subpixel P13 adjacent thereto is P2, a distance between the first edge S1c of the third subpixel P13 and the first edge S1a of the first subpixel P11 adjacent thereto is P3, P1 > P2, and P1 > P3, that is, in the first direction X, a distance between the first edge S1a of the first subpixel P11 and the first edge S1b of the second subpixel P12 adjacent thereto is greater than a distance between the first edge S1b of the second subpixel P12 and the first edge S1c of the third subpixel P13 adjacent thereto, and the distance between the first edge S1a of the first subpixel P11 and the first edge S1b of the third subpixel P12 adjacent thereto is greater than the distance between the first edge S1b of the first subpixel P11 and the first edge S1c of the second subpixel P12 adjacent thereto. Since the width of the routing portion 21a of the first sub-pixel P11 is greater than the width of the routing portion 21b of the second sub-pixel P12 in the first direction X, and the width of the routing portion 21a of the first sub-pixel P11 is greater than the width of the routing portion 21c of the third sub-pixel P13, in the first direction X, the width of the driving circuit 20a of the first sub-pixel P11 is greater than the width of the driving circuit 20b of the second sub-pixel P12, the width of the driving circuit 20a of the first sub-pixel P11 is greater than the width of the driving circuit 20c of the third sub-pixel P13, accordingly, in the first direction X, the width of the first sub-pixel P11 is greater than the width of the second sub-pixel P12, and the width of the first sub-pixel P11 is greater than the width of the third sub-pixel P13. When the width of the first sub-pixel P11 in the first direction X is increased due to the widening of the width of the routing portion 21a of the first sub-pixel P11 in the first direction X, a common technical means in the art is to correspondingly increase the width of the pixel unit P in the first direction X. However, the increase of the width of the pixel unit P in the first direction X may cause the pixel density in the display panel to decrease, which affects the display effect of the display panel. In the present application, the distance between the first edge S1b of the second sub-pixel P12 and the first edge S1c of the adjacent third sub-pixel P13, and the distance between the first edge S1c of the third sub-pixel P13 and the first edge S1a of the adjacent first sub-pixel P11 are reduced in the first direction X, so as to avoid the increase of the width of the pixel unit P in the first direction X due to the widening of the width of the routing portion 21a of the first sub-pixel P11 in the first direction X, and when the width of the routing portion 21a of the first sub-pixel P11 in the first direction X is widened, the width of the pixel unit P in the first direction X is the same, thereby avoiding the decrease of the pixel density in the display panel due to the increase of the width of the pixel unit P in the first direction X, and effectively improving the display effect. Compare with current design, this patent is guaranteeing under the unchangeable condition of the total width of pixel element P on first direction X, through the width of differentiation design pixel element P subpixel along first direction X, improves the problem that partial sub-pixel P11 luminous efficacy is low.
In some optional embodiments, in the first direction X, the pitches between two adjacent sub-pixels P10 are equal, and the width of the routing portion 21a of the first sub-pixel P11 in the first direction X is increased without affecting the width of the pixel unit P in the first direction X, and meanwhile, it is avoided that in the first direction X, the display effect is affected by the interference of signals between the two adjacent sub-pixels P10 due to too small pitches between two adjacent sub-pixels P10.
In some optional embodiments, the difference between the light emitting efficiency of the light emitting element 32 of the second sub-pixel P12 and the light emitting efficiency of the light emitting element 33 of the third sub-pixel P13 is smaller or tends to be the same, and the width of the routing portion 21b of the second sub-pixel P12 may be the same as the width of the routing portion 21c of the third sub-pixel P13, so as to effectively reduce the difficulty in arranging wires of the routing portion 21.
In some alternative embodiments, P2= P3, i.e. in the first direction X, the distance between the first edge S1b of the second subpixel P12 and the first edge S1c of the third subpixel P13 adjacent thereto is decreased by the same distance as the distance between the first edge S1c of the third subpixel P13 and the first edge S1a of the first subpixel P11 adjacent thereto.
Fig. 6 is a schematic structural diagram of a light emitting device according to the present invention, referring to fig. 6, in some alternative embodiments, the light emitting device 30 includes an anode 301, a light emitting layer 302 and a cathode 303, and the light emitting layer 302 emits a single color light when a forward bias is applied to the anode 301 and the cathode 303 to cause a current to flow therethrough.
It should be noted that fig. 6 exemplarily shows that the light emitting element 30 is a vertical Micro-LED, in other embodiments of the present invention, the light emitting element 30 may also be a horizontal Micro-LED or other types of light emitting elements, which is not described herein again.
Referring to fig. 1, fig. 2 and fig. 6, in some alternative embodiments, the display panel further includes a plurality of traces 40 extending along the second direction Y, wherein a portion of the trace 40 located at the sub-pixel P10 is a trace portion 21, and the trace portion 21 is electrically connected to the anode 301, that is, the anode 301 of the light emitting element 30 electrically connected thereto is provided with a signal through the trace 40.
The routing line 40 includes a first routing line 41 and a second routing line 42, wherein the first routing line 41 is electrically connected to an anode in the first sub-pixel P11, and provides a signal to the light emitting element 30 electrically connected thereto through the first routing line 41, the second routing line 42 is electrically connected to an anode in the second sub-pixel P12, and provides a signal to the light emitting element 30 electrically connected thereto through the second routing line 42, in the first direction X, the width of the first routing line 41 is greater than the width of the second routing line 42, so that both the voltage drop and the resistance on the first routing line 41 are smaller than those on the second routing line 42, that is, by increasing the width of the first routing line 41, the voltage drop and the resistance on the first routing line 41 are reduced, the current for driving the light emitting element 31 of the first sub-pixel P11 is increased, thereby increasing the light emission luminance of the light emitting element 31 of the first sub-pixel P11, so that the light emission luminance of the light emitting element 31 of the first sub-pixel P11 and the light emitting element 32 of the second sub-pixel P12 tend to be consistent, thereby effectively solving the problem that the light emission luminance of the light emitting element 31 of the light emitting element P11 is smaller than the light emitting efficiency of the light emitting element 32 of the second sub-pixel P12, thereby improving the display panel.
With reference to fig. 1, in some optional embodiments, the display panel further includes a driving chip 50, the traces 40 are electrically connected to the driving chip 50 through a same connecting line 60, and the driving chip 50 can provide signals to the traces 40 through a connecting line 60, so as to effectively reduce the wiring difficulty.
Referring to fig. 4 to fig. 6, in some optional embodiments, the trace 40 further includes a third trace 43, where the third trace 43 is electrically connected to the anode in the third sub-pixel P13, and in the first direction X, the width of the first trace 41 is greater than the width of the third trace 43, so that both a voltage drop and a resistance on the first trace 41 are smaller than those on the third trace 43, that is, by increasing the width of the first trace 41, the voltage drop and the resistance on the first trace 41 are reduced, and the current for driving the light emitting element 31 of the first sub-pixel P11 is increased, so as to increase the light emitting luminance of the light emitting element 31 of the first sub-pixel P11, so that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 and the light emitting luminance of the light emitting element 33 of the third sub-pixel P13 tend to be consistent, thereby effectively solving the problem that the light emitting efficiency of the light emitting element 31 of the first sub-pixel P11 is smaller than the light emitting luminance of the light emitting element 33 of the third sub-pixel P13, and thus improving the display panel.
With reference to fig. 4, in some optional embodiments, the first trace 41, the second trace 42, and the third trace 43 are electrically connected to the driving chip 50 through the same connecting line 60, and the driving chip 50 can provide signals to the traces 40 through the same connecting line 60, thereby effectively reducing the wiring difficulty.
Fig. 7 is a schematic plan view of another display panel provided by the present invention, referring to fig. 7, in some optional embodiments, the display panel further includes a driving chip 50, the first trace 41 is electrically connected to the driving chip 50 through a first connecting line 61, the second trace 42 is electrically connected to the driving chip 50 through a second connecting line 62, the driving chip 50 provides a signal to the first trace 41 through the first connecting line 61, and the driving chip 50 provides a signal to the second trace 42 through the second connecting line 62, so that different signals can be provided to the first trace 41 and the second trace 42 respectively according to actual requirements.
In some optional embodiments, the voltage value of the signal provided by the driving chip 50 to the first connecting line 61 is greater than the voltage value of the signal provided to the second connecting line 62, so that the voltage value of the signal on the first routing line 41 is greater than the voltage value of the signal on the second routing line 42, and the light-emitting luminance of the light-emitting element 31 of the first sub-pixel P11 electrically connected to the first routing line 41 is further increased, so that the light-emitting luminance of the light-emitting element 31 of the first sub-pixel P11 and the light-emitting luminance of the light-emitting element 32 of the second sub-pixel P12 tend to be consistent, and the problem that the light-emitting luminance of the light-emitting element 31 of the first sub-pixel P11 is less than the light-emitting luminance of the light-emitting element 32 of the second sub-pixel P12 due to the light-emitting efficiency of the light-emitting element 31 of the first sub-pixel P11 being less than the light-emitting efficiency of the light-emitting element 32 of the second sub-pixel P12 is effectively solved, thereby improving the display effect of the display panel.
Fig. 8 is a schematic plan view of another display panel provided by the present invention, referring to fig. 8, the first trace 41 is electrically connected to the driving chip 50 through a first connecting line 61, the second trace 42 and the third trace 43 are both electrically connected to the driving chip 50 through a second connecting line 62, the driving chip 50 provides a signal to the first trace 41 through the first connecting line 61, and the driving chip 50 provides a signal to the second trace 42 and the third trace 43 through the second connecting line 62, so that different signals can be provided to the first trace 41, the second trace 42 and the third trace 43 respectively according to actual requirements.
Fig. 9 is a schematic plan view of still another pixel unit provided by the present invention, referring to fig. 9, in some alternative embodiments, the size of the light emitting element 31 in the first sub-pixel P11 is larger than the size of the light emitting element 32 in the second sub-pixel P12, and the size of the light emitting element 31 in the first sub-pixel P11 is increased to further increase the light emitting luminance of the first sub-pixel P11, so that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 and the light emitting luminance of the light emitting element 32 of the second sub-pixel P12 tend to be consistent, and the problem that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 is smaller than the light emitting luminance of the light emitting element 32 of the second sub-pixel P12 due to the light emitting efficiency of the light emitting element 31 of the first sub-pixel P11 being smaller than the light emitting efficiency of the light emitting element 32 of the second sub-pixel P12 is effectively solved, thereby improving the display effect of the display panel.
Fig. 10 is a schematic plan view of still another pixel unit provided by the present invention, referring to fig. 10, in some alternative embodiments, the size of the light emitting element 31 in the first sub-pixel P11 is larger than the size of the light emitting element 33 in the third sub-pixel P13, and the size of the light emitting element 31 in the first sub-pixel P11 is increased to further increase the light emitting luminance of the first sub-pixel P11, so that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 and the light emitting luminance of the light emitting element 33 of the third sub-pixel P13 tend to be consistent, and the problem that the light emitting luminance of the light emitting element 31 of the first sub-pixel P11 is smaller than the light emitting luminance of the light emitting element 33 of the third sub-pixel P13 due to the light emitting efficiency of the light emitting element 31 of the first sub-pixel P11 being smaller than the light emitting efficiency of the light emitting element 33 of the third sub-pixel P13 is effectively solved, thereby improving the display effect of the display panel.
The present embodiment provides a display device including the display panel as described above.
Referring to fig. 11, fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present invention. Fig. 11 provides a display device 1000 including the display panel 100 according to any of the above embodiments of the present invention. The embodiment of fig. 11 is only an example of a mobile phone, and the display device 1000 is described, it should be understood that the display device provided in the embodiment of the present invention may be other display devices with a display function, such as a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel in each of the above 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:
in the display panel provided by the invention, the sub-pixels include a first sub-pixel and a second sub-pixel, the colors of the light emitted by the light emitting element of the first sub-pixel and the light emitted by the light emitting element of the second sub-pixel are different, and based on the limitation of the material, the light emitting element of the first sub-pixel and the light emitting element of the second sub-pixel have the condition that the light emitting efficiency of the light emitting element of the first sub-pixel is lower than that of the light emitting element of the second sub-pixel under the condition that the driving currents are the same, so that the light emitting luminance of the light emitting element of the first sub-pixel is lower than that of the light emitting element of the second sub-pixel, and the display effect of the display panel is influenced. The driving circuit comprises a wiring part extending along the second direction, the wiring part provides an electric signal for the light-emitting unit electrically connected with the wiring part, the width of the wiring part of the first sub-pixel is larger than that of the wiring part of the second sub-pixel in the first direction, and the first direction and the second direction are intersected. In the first direction, the width of the routing part of the first sub-pixel is greater than that of the routing part of the second sub-pixel, so that both the voltage drop and the resistance on the routing part of the first sub-pixel are less than those on the routing part of the second sub-pixel, that is, the voltage drop and the resistance on the routing part of the first sub-pixel are reduced by increasing the width of the routing part of the first sub-pixel, the current for driving the light-emitting element of the first sub-pixel is increased, and the light-emitting brightness of the light-emitting element of the first sub-pixel is increased, so that the light-emitting brightness of the light-emitting element of the first sub-pixel and the light-emitting brightness of the light-emitting element of the second sub-pixel tend to be consistent, the problem that the light-emitting brightness of the light-emitting element of the first sub-pixel is less than that of the light-emitting element of the second sub-pixel caused by the light-emitting efficiency of the light-emitting element of the first sub-pixel is less than that of the light-emitting element of the second sub-pixel is effectively solved, and the display effect of the display panel is improved.
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 (12)
1. A display panel, comprising:
a substrate base plate;
the pixel unit is positioned on one side of the substrate and comprises at least two sub-pixels arranged along a first direction, and each sub-pixel comprises a driving circuit and a light-emitting element electrically connected with the driving circuit;
the sub-pixels include a first sub-pixel and a second sub-pixel,
the luminous efficiency of the luminous element of the first sub-pixel is less than that of the luminous element of the second sub-pixel; in the first direction, the width of the first sub-pixel is greater than the width of the second sub-pixel;
the driving circuit comprises a routing part extending along a second direction, and the width of the routing part of the first sub-pixel is larger than that of the routing part of the second sub-pixel in the first direction, wherein the first direction and the second direction are intersected;
the sub-pixel further comprises a third sub-pixel, and the luminous efficiency of the luminous element of the first sub-pixel is smaller than that of the luminous element of the third sub-pixel;
in the first direction, the width of the wiring part of the first sub-pixel is larger than that of the wiring part of the third sub-pixel;
the pixel unit comprises the first sub-pixel, the second sub-pixel and the third sub-pixel which are sequentially arranged along the first direction;
the sub-pixels comprise first edges, the first edges are located on one side of the sub-pixels along the first direction, the first edges of the first sub-pixels are located on one side of the first sub-pixels, which is far away from the second sub-pixels, the first edges of the second sub-pixels are located on one side of the second sub-pixels, which is close to the first sub-pixels, and the first edges of the third sub-pixels are located on one side of the third sub-pixels, which is close to the first sub-pixels;
in the first direction, the distance between the first edge of the first sub-pixel and the first edge of the second sub-pixel adjacent to the first sub-pixel is P1, the distance between the first edge of the second sub-pixel and the first edge of the third sub-pixel adjacent to the second sub-pixel is P2, and the distance between the first edge of the third sub-pixel and the first edge of the first sub-pixel adjacent to the third sub-pixel is P3;
wherein P1 is more than P2, and P1 is more than P3.
2. The display panel according to claim 1,
in the first direction, a width of the driving circuit of the first sub-pixel is greater than a width of the driving circuit of the second sub-pixel.
3. The display panel according to claim 1,
in the first direction, a width of a routing portion of the second sub-pixel is the same as a width of a routing portion of the third sub-pixel, and/or P2= P3.
4. The display panel according to claim 1,
the light emitting element includes an anode, a light emitting layer, and a cathode.
5. The display panel according to claim 4, further comprising a plurality of traces extending along the second direction, wherein the portion of the traces located in the sub-pixels is the trace portion;
the wire routing part is electrically connected with the anode;
the wirings comprise a first wiring and a second wiring, wherein the first wiring is electrically connected with the anode in the first sub-pixel, the second wiring is electrically connected with the anode in the second sub-pixel, and the width of the first wiring is greater than that of the second wiring in the first direction.
6. The display panel according to claim 5,
the display panel further comprises a driving chip, and the wiring is electrically connected with the driving chip through the same connecting line.
7. The display panel according to claim 5,
the display panel further comprises a driving chip, the first wiring is electrically connected with the driving chip through a first connecting line, and the second wiring is electrically connected with the driving chip through a second connecting line.
8. The display panel according to claim 7,
the voltage value of the signal provided by the driving chip to the first connecting line is larger than that of the signal provided by the driving chip to the second connecting line.
9. The display panel according to claim 1,
the size of the light emitting element in the first sub-pixel is larger than the size of the light emitting element in the second sub-pixel.
10. The display panel according to claim 1,
the light emitting element includes a micro light emitting diode.
11. The display panel according to claim 1,
the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel, or the first sub-pixel is a red sub-pixel, the second sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.
12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108335667A (en) * | 2018-04-20 | 2018-07-27 | 武汉华星光电半导体显示技术有限公司 | Oled display panel and display device |
| CN109817643A (en) * | 2019-01-29 | 2019-05-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
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| US7764252B2 (en) * | 2005-12-22 | 2010-07-27 | Global Oled Technology Llc | Electroluminescent display brightness level adjustment |
| KR101535810B1 (en) * | 2009-01-14 | 2015-07-10 | 삼성디스플레이 주식회사 | Liquid crystal display |
| KR20210042216A (en) * | 2019-10-08 | 2021-04-19 | 삼성디스플레이 주식회사 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108335667A (en) * | 2018-04-20 | 2018-07-27 | 武汉华星光电半导体显示技术有限公司 | Oled display panel and display device |
| CN109817643A (en) * | 2019-01-29 | 2019-05-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
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