CN117479688A - Display panel and electronic terminal - Google Patents
Display panel and electronic terminal Download PDFInfo
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- CN117479688A CN117479688A CN202310384413.3A CN202310384413A CN117479688A CN 117479688 A CN117479688 A CN 117479688A CN 202310384413 A CN202310384413 A CN 202310384413A CN 117479688 A CN117479688 A CN 117479688A
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- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 22
- 230000000875 corresponding effect Effects 0.000 description 75
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Abstract
The invention provides a display panel and an electronic terminal, which comprise a substrate, a wiring layer positioned on the substrate, and a cathode layer positioned on one side of the wiring layer far away from the substrate, wherein the wiring layer comprises a plurality of cathode signal wires, the cathode layer is electrically connected with the cathode signal wires, the electronic terminal also comprises a cathode signal source electrically connected with at least one end of the cathode signal wires, different sections of at least one cathode signal wire are respectively and electrically connected with a plurality of detector elements, and the detector elements respectively detect a plurality of cathode signals corresponding to a plurality of sections of the cathode signal wires so as to at least compensate corresponding light-emitting devices, thereby improving the phenomenon of uneven brightness of the display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to manufacturing of a display device, and particularly relates to a display panel and an electronic terminal.
Background
An OLED (Organic Light-Emitting Diode) display panel emits Light by injection and recombination of carriers, and has the advantages of Light weight, high brightness, low power consumption, fast response, high definition, and the like.
The cathode layer in the top emission type OLED display panel needs a certain light transmittance to meet the requirement of picture display, so that the square resistance of the cathode layer is larger, especially when the size of the OLED display panel is larger or the display brightness is higher, the cathode layer needs to be loaded with a cathode signal, so that compared with the input end corresponding to the near cathode signal and the input end corresponding to the far cathode signal of the cathode layer in the OLED display panel, the attenuation degree of the corresponding first cathode signal is different, and the phenomenon of uneven brightness of the OLED display panel is caused.
Accordingly, the conventional top emission type OLED display panel has the above problems, and improvements are urgently needed.
Disclosure of Invention
The invention aims to provide a display panel and an electronic terminal, which are used for solving the technical problem of uneven brightness in the existing top emission type OLED display panel.
The embodiment of the invention provides a display panel, which comprises the following components.
A substrate;
the wiring layer is positioned on the substrate and comprises a plurality of cathode signal wires;
the cathode layer is positioned at one side of the wiring layer far away from the substrate and is electrically connected with the cathode signal lines;
the cathode signal source is electrically connected to at least one end of the cathode signal lines;
the detector elements are respectively electrically connected with different sections of at least one cathode signal wire, and the detector elements respectively detect a plurality of cathode signals corresponding to a plurality of sections of the cathode signal wire.
In an embodiment, the plurality of cathode signal lines includes two first cathode signal lines respectively arranged at two sides, and different segments in at least one of the first cathode signal lines are respectively electrically connected with the plurality of detector elements.
In an embodiment, the plurality of cathode signal lines include at least one second cathode signal line, and different segments in at least one second cathode signal line are respectively electrically connected with the plurality of detector elements;
the distance between the end part of the second cathode signal wire and the cathode signal source is smaller than the distance between the end part corresponding to the second cathode signal wire and the cathode signal source.
In an embodiment, the plurality of cathode signal lines includes a first portion of cathode signal lines, a second portion of cathode signal lines, and a third portion of cathode signal lines, wherein a distance between an end of the third portion of cathode signal lines and the cathode signal source is between a distance between an end of the first portion of cathode signal lines and the cathode signal source, and a distance between an end of the second portion of cathode signal lines and the cathode signal source;
the third partial cathode signal line comprises at least one third cathode signal line, and different sections in at least one third cathode signal line are respectively and electrically connected with a plurality of detector elements.
In an embodiment, the detector includes a plurality of detection transistors, wherein gates of the detection transistors are respectively electrically connected to the plurality of first scan lines, one of sources and drains of the detection transistors is respectively electrically connected to a plurality of segments of the corresponding cathode signal line, and the other of the sources and drains of the detection transistors is electrically connected to a detection line.
In an embodiment, further comprising:
the anode layer is positioned between the wiring layer and the cathode layer and comprises a plurality of anode parts;
the wiring layer comprises a first scanning line and a second scanning line, the first scanning line is further connected to a plurality of corresponding anode parts, and the second scanning line is connected to a plurality of corresponding anode parts.
In an embodiment, the routing layer further includes a data line, and the data line is connected to the corresponding plurality of anode portions, and further includes:
the data signal source is electrically connected between the detection line and the plurality of data lines and generates a plurality of target data signals corresponding to the plurality of anode parts according to a plurality of data signals corresponding to the plurality of anode parts and a plurality of cathode signals respectively detected by the plurality of detector parts.
In an embodiment, the number of the second scan lines between every two adjacent first scan lines is the same.
In an embodiment, the plurality of detector elements are respectively electrically connected to the plurality of cathode signal lines, and each detector element detects a corresponding cathode signal of a segment of the corresponding cathode signal line.
The embodiment of the invention also provides an electronic terminal comprising the display panel.
The invention provides a display panel and an electronic terminal, comprising: a substrate; the wiring layer is positioned on the substrate and comprises a plurality of cathode signal wires; the cathode layer is positioned at one side of the wiring layer far away from the substrate and is electrically connected with the cathode signal lines; the cathode signal source is electrically connected to at least one end of the cathode signal lines; the detector elements are respectively electrically connected with different sections of at least one cathode signal line, and respectively detect a plurality of cathode signals corresponding to a plurality of sections of the cathode signal line so as to at least correspondingly compensate corresponding light emitting devices.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be obtained from these drawings by those skilled in the art without the inventive effort.
Fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the invention.
Fig. 2, 4 to 6 are schematic top views of the trace layer in the display panel according to the embodiment of the invention.
Fig. 3 is a circuit diagram of a pixel driving circuit of a display panel according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be understood that, the terms "left", "right", "approaching", "far" and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, for example, "upper" merely means that the surface is above the object, specifically means that the surface is directly above, obliquely above, or above, as long as it is above the level of the object; "two sides" refers to two opposing locations of an object that may be represented in the figures, which may be in direct/indirect contact with the object, the above orientations or positional relationships are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In addition, it should be noted that the drawings merely provide structures and steps closely related to the present invention, and some details not related to the present invention are omitted, so as to simplify the drawings, and make the points of the present invention clear, and not to indicate that the apparatus and the method are in practice or the same as the drawings, and not to limit the apparatus and the method in practice.
The present invention provides display panels including, but not limited to, the following embodiments and combinations of the following embodiments.
In one embodiment, as shown in fig. 1 and 2, the display panel 100 includes: a substrate 10; a trace layer 20, disposed on the substrate 10, and including a plurality of cathode signal lines 30; a cathode layer 40, located at a side of the trace layer 20 away from the substrate 10, and electrically connected to the plurality of cathode signal lines 30; a cathode signal source 501 electrically connected to at least one end of the cathode signal lines 30; the plurality of detector elements 60 are electrically connected to different segments 01 of at least one of the cathode signal lines 30, respectively, and the plurality of detector elements 60 detect a plurality of cathode signals corresponding to the segments 01 of the cathode signal lines 30, respectively.
The display panel 100 may be, but is not limited to, an OLED display panel, where the display panel 100 further includes an anode layer 80 located between the wiring layer 20 and the cathode layer 40, the anode layer 80 includes a plurality of anode portions 801, further, a corresponding light emitting portion 901 may be disposed between each anode portion 801 and the cathode layer 40, and the plurality of light emitting portions 901 form the light emitting layer 90. Specifically, as shown in fig. 1 to 3, the corresponding positions of the anode portion 801, the corresponding light emitting portion 901, and the cathode layer 40 may form the corresponding light emitting device 200, and since the cathode signal source 501 is electrically connected to at least one end of the plurality of cathode signal lines 30 and the cathode layer 40 has a square resistance, the original cathode signal VSS applied to the cathode layer 40 by the cathode signal source 501 through the plurality of cathode signal lines 30 cannot be applied to different portions of the cathode layer 40 to the same extent, that is, it may be considered that the first resistance R1 exists between the cathode signal source 501 and the portion of the cathode layer 40 corresponding to the corresponding light emitting device 200, and the first resistance R1 between the different light emitting devices 200 (corresponding positions in the cathode layer 40) and the cathode signal source 501 is different.
Specifically, as shown in fig. 3, the routing layer 20 further includes a data line 704 and a scan line 700, where a matrix arrangement of the plurality of light emitting devices 200 is illustrated as an example, the data line 704 is connected to a corresponding plurality of the anode portions 801 (a plurality of the light emitting devices 200 included in the same column), and the scan line 700 is connected to a corresponding plurality of the anode portions 801 (a plurality of the light emitting devices 200 included in the same row). Further, in connection with the above discussion, the trace layer 20 may include a pixel driving circuit, the pixel driving circuit may include a switching transistor T1, a driving transistor T2 and a second resistor R2, a gate of the switching transistor T1 may be electrically connected to the scan line 700, one of a source and a drain of the switching transistor T1 may be electrically connected to the data line 704, the other of the source and the drain of the switching transistor T1 may be electrically connected to the gate of the driving transistor T2, and a storage capacitor Cst may be connected therebetween, one of the source and the drain of the driving transistor T2 may be electrically connected to the corresponding light emitting device 200, and the other of the source and the drain of the driving transistor T2 may be loaded with the operating signal Vdd.
Wherein, in conjunction with the above discussion, under the action of the working signal Vdd, the anode portion 801 of each light emitting device 200 is loaded with a corresponding anode signal, and each light emitting device 200 is loaded with a corresponding cathode signal at a corresponding position in the cathode layer 40, and the anode signal and the cathode signal cause the corresponding light emitting device 200 to emit light. It should be noted that each cathode signal line 30 may be electrically connected between the cathode layer 40 and the corresponding at least one light emitting portion 901, and it is understood that, due to the presence of the first resistor R1, each cathode signal line 30 and the signal having a positive correlation with the corresponding cathode signal may be considered as equal to or positively correlated with each other, which is described as "equal to" hereinafter.
It should be understood that, as shown in fig. 1 to 3, the different sections 01 of at least one cathode signal line 30 in the present embodiment are respectively and electrically connected to a plurality of detector elements 60, the plurality of detector elements 60 respectively detect a plurality of cathode signals corresponding to the plurality of sections 01 of the cathode signal line 30, and the number of detector elements 60 and the specific distribution of the plurality of sections 01 of the cathode signal line 30 respectively and electrically connected to the plurality of detector elements 60 are not limited, so long as each detector element 60 can detect the cathode signal loaded to the corresponding section 01 of the cathode signal line 30, that is, the cathode signal corresponding to at least one light emitting device 200 can be detected, so as to at least compensate the corresponding light emitting device 200 correspondingly, and of course, all the light emitting devices 200 can also be compensated correspondingly, thereby improving the uneven brightness of the display panel 100.
In one embodiment, as shown in fig. 1 and 2, the cathode signal lines 30 include two first cathode signal lines 301 respectively arranged on two sides, and a plurality of the detector elements 60 are respectively electrically connected to different segments 01 of at least one of the first cathode signal lines 301. In this embodiment, the relative positions of the cathode signal source 501 and the ends of the cathode signal lines 30 are not limited, for example, the cathode signal source 501 may be disposed near the left side, the right side, or the middle of the ends of the cathode signal lines 30, and fig. 2 only illustrates that the cathode signal source 501 is disposed near the middle of the ends of the cathode signal lines 30.
Further, in the present embodiment, the positions of the cathode signal lines 30 electrically connected to the plurality of detector elements 60 in the plurality of cathode signal lines 30 are further defined, that is, at least one first cathode signal line 301 arranged on two sides of the plurality of cathode signal lines 30 is electrically connected to the plurality of detector elements 60, and it is understood that, since the first cathode signal line 301 electrically connected to the plurality of detector elements 60 is disposed near the non-display area, the plurality of detector elements 60 may also be disposed near the non-display area or disposed in the non-display area, so as to reduce the occupation of the display area space and improve the light transmittance of the display area of the display panel 100.
In one embodiment, as shown in fig. 1 and 4, the plurality of cathode signal lines 30 includes at least one second cathode signal line 302, and different segments 01 of at least one second cathode signal line 302 are electrically connected to the plurality of detector elements 60, respectively; the distance between the end of the second cathode signal line 302 and the cathode signal source 501 is smaller than the distance between the end of the second cathode signal line 302 and the cathode signal source 501. In the present embodiment, the relative positions of the cathode signal source 501 and the ends of the cathode signal lines 30 are not limited, and fig. 2 only illustrates the cathode signal source 501 disposed near the middle of the ends of the cathode signal lines 30.
Further, here, taking an example that each cathode signal line 30 is electrically connected to a corresponding row of light emitting portions 901, unlike the two first cathode signal lines 301 arranged on two sides of the plurality of cathode signal lines 30, the plurality of cathode signal lines 30 may further include at least one second cathode signal line 302 having a minimum distance from the cathode signal source 501, i.e. it can be considered that the second cathode signal line 302 is closest to the original cathode signal VSS compared to the other cathode signal lines 30 in the same horizontal direction, and of course, the second cathode signal line 302 has the highest attenuation speed compared to the other cathode signal lines 30 in the vertical direction.
It can be understood that, in the present embodiment, it is further defined that the different segments 01 in the second cathode signal line 302 may be electrically connected to the plurality of detector elements 60, that is, the plurality of detector elements 60 may detect the cathode signals corresponding to at least one row of light emitting devices 200 near the middle row of light emitting devices 200 to perform corresponding compensation on the row of light emitting devices 200, and of course, all the light emitting devices 200 may also be correspondingly compensated to improve the uneven brightness of the display panel 100.
In one embodiment, as shown in fig. 1 and 5, the plurality of cathode signal lines 30 includes a first part of cathode signal line 001, a second part of cathode signal line 002, and a third part of cathode signal line 003, wherein a distance between an end of the third part of cathode signal line 003 and the cathode signal source 501 is between a distance between an end of the first part of cathode signal line 001 and the cathode signal source 501, and a distance between an end of the second part of cathode signal line 002 and the cathode signal source 501; the third partial cathode signal line 003 includes at least one third cathode signal line 303, and different segments 01 of at least one third cathode signal line 303 are electrically connected to the plurality of detector elements 60, respectively. In the present embodiment, the relative positions of the cathode signal source 501 and the ends of the cathode signal lines 30 are not limited, and fig. 2 only illustrates the cathode signal source 501 disposed near the middle of the ends of the cathode signal lines 30.
Further, in the example where each of the cathode signal lines 30 is electrically connected to a corresponding row of the light emitting portions 901, unlike the first cathode signal line 301 (included in the first portion of the cathode signal line 001) and the second cathode signal line 302 (included in the second portion of the cathode signal line 002) mentioned above, the plurality of cathode signal lines 30 may further include a third cathode signal line 303 located between the first cathode signal line 301 and the second cathode signal line 302, i.e. it may be considered that the third cathode signal line 303 is different from the other cathode signal lines 30 in the same horizontal direction, and the corresponding cathode signal is different from the original cathode signal VSS in the vertical direction, however, the attenuation speed of the corresponding cathode signal is also equal in the vertical direction, compared with the other cathode signal lines 30 in the second cathode signal line 302.
It can be understood that in the present embodiment, it is further defined that the different segments 01 in the third cathode signal line 303 can be electrically connected to the plurality of detector elements 60 respectively, that is, the cathode signals detected by the plurality of detector elements 60 have a moderate degree of difference from the original cathode signal VSS and a moderate attenuation speed compared with other cathode signals, so that the reliability of compensation can be improved if all the light emitting devices 200 are correspondingly compensated.
In an embodiment, as shown in fig. 1 to 5, the detector 60 includes a detecting transistor 601, the gates G of the detecting transistors 601 are respectively electrically connected to the first scan lines 701, one of the sources S and the drains D of the detecting transistor 601 is respectively electrically connected to the multiple segments 01 of the corresponding cathode signal line 30, and the other of the sources S and the drains D of the detecting transistor 601 is respectively electrically connected to the detecting line 703. Specifically, since the plurality of detector elements 60 may be electrically connected to different segments 01 in the cathode signal line 30, for the plurality of detection transistors 601 electrically connected to the same cathode signal line 30, the corresponding plurality of first scan signals transmitted in the corresponding plurality of first scan lines 701 may control the corresponding plurality of detection transistors 601 to be turned on sequentially, so that at corresponding time, the corresponding one of the detection transistors 601 may detect the cathode signal of the corresponding light emitting device 200 to at least perform corresponding compensation on the corresponding light emitting device 200, and of course, all of the light emitting devices 200 may also be compensated accordingly, thereby improving the uneven brightness of the display panel 100.
In an embodiment, as shown in fig. 1 to 5, as discussed above, the display panel 100 further includes an anode layer 80, the anode layer 80 includes a plurality of anode portions 801, the trace layer 20 includes the first scan line 701 and a second scan line 702 (both included in the scan line 700), the first scan line 701 is further connected to a corresponding plurality of the anode portions 801, and the second scan line 702 is connected to a corresponding plurality of the anode portions 801. The plurality of scan signals respectively transmitted in the plurality of scan lines 700 (including the plurality of first scan lines 701 and the plurality of second scan lines 702) may control the corresponding plurality of switching transistors T1 to be turned on sequentially, and the pixel driving circuit is combined to control the plurality of light emitting devices 200 to emit light sequentially.
It can be understood that, in the present embodiment, on the basis that the plurality of scanning lines 700 control the plurality of light emitting devices 200 to emit light sequentially, the plurality of first scanning lines 701 controlling the corresponding plurality of detection transistors 601 to turn on sequentially are further defined to be included in the plurality of scanning lines 700, that is, the plurality of first scanning lines 701 may be selected from the plurality of scanning lines 700 to control the plurality of detection transistors 601 corresponding to the same detection line 703 to turn on sequentially, that is, in the present embodiment, the plurality of first scanning lines 701 multiplexing the plurality of scanning lines 700 to control the plurality of detection transistors 601 to turn on may be considered to be equivalent, so that the types of signals and the number of signal lines may be saved, and the cost of the display panel 100 may be reduced.
In one embodiment, as shown in fig. 1 to 5, as discussed above, the routing layer 20 further includes a data line 704, and the display panel 100 further includes: the data signal source is electrically connected between the detecting line 703 and the plurality of data lines 704, and generates a plurality of target data signals corresponding to the plurality of anode portions 801 according to the plurality of data signals corresponding to the plurality of anode portions 801 and the plurality of cathode signals detected by the plurality of detector elements 60. Here, the "data signal" may be understood as a signal that should be theoretically loaded onto the data line 704, and in combination with the above discussion, the cathode signal loaded into the portion of the cathode layer 40 corresponding to the light emitting device 200 is different from the original cathode signal VSS due to the presence of the first resistor R1, resulting in a defect in the current flowing through the light emitting device 200.
It can be understood that, in this embodiment, the data signal source is electrically connected to the detecting line 703 to obtain cathode signals corresponding to at least two light emitting devices 200 in the same column of light emitting devices 200, and the data signal source may also obtain at least two corresponding "data signals" to perform operation in combination with the corresponding at least two "cathode signals" to obtain at least two corresponding target data signals, and then cooperate with a plurality of scanning signals respectively transmitted in the plurality of scanning lines 700 to apply the plurality of target data signals to the corresponding plurality of light emitting devices 200 respectively, so as to further implement corresponding compensation for all the light emitting devices 200, thereby improving the uneven brightness of the display panel 100.
In an embodiment, as shown in fig. 1 and 2, the number of the second scan lines 702 between every two adjacent first scan lines 701 is the same. Specifically, in conjunction with the above discussion, on the basis that the plurality of scan lines 700 control the light emitting devices 200 to emit light sequentially, it may be considered that the plurality of first scan lines 701 are selected from the plurality of scan lines 700 to control the plurality of detection transistors 601 corresponding to the same detection line 703 to turn on sequentially, further, it is further defined in this embodiment that the number of second scan lines 702 between every two adjacent first scan lines 701 is the same, that is, from the plurality of scan lines 700, every two second scan lines 702 with the same number are spaced apart, one first scan line 701 is set to multiplex to control the turn-on condition of the corresponding detection transistor 601.
It can be understood that in the present embodiment, one first scan line 701 is disposed for each second scan line 702 with the same number of intervals, that is, each light emitting device 200 with the same row of intervals, the cathode signals corresponding to one row of light emitting devices 200 are detected, so that a plurality of cathode signals corresponding to a plurality of light emitting devices 200 which are more uniformly arranged in the column direction can be obtained, correspondingly, the plurality of light emitting devices 200 can be more uniformly compensated in the column direction, and the reliability of corresponding compensation for all the light emitting devices 200 is improved.
In one embodiment, as shown in fig. 1 and 6, a plurality of the detector elements 60 are respectively electrically connected to a plurality of the cathode signal lines 30, and each of the detector elements 60 detects the cathode signal corresponding to a 01 segment of the cathode signal line 30. Specifically, as can be seen from the above discussion, no matter the cathode signal source 501 is disposed near the left side, the right side or the middle of the end portions of the cathode signal lines 30, the distances between the end portions of the cathode signal lines 30 and the cathode signal source 501 always differ, and the plurality of cathode signals of the plurality of light emitting devices 200 corresponding to the same row in the plurality of cathode signal lines 30 are detected by the plurality of detector elements 60 respectively based on the plurality of light emitting devices 200 of the same row in the present embodiment, so as to compensate for the differences caused by the above reasons. It should be noted that, due to the limited number of the detecting lines 703, the plurality of detector elements 60 corresponding to the plurality of cathode signal lines 30 can be controlled to be turned on in a time-sharing manner, for example, the gates G of the different detecting transistors 601 can be electrically connected to the different scanning lines 700.
The invention also provides an electronic terminal comprising a display panel as described in any one of the above.
The invention provides a display panel and an electronic terminal, comprising: a substrate; the wiring layer is positioned on the substrate and comprises a plurality of cathode signal wires; the cathode layer is positioned at one side of the wiring layer far away from the substrate and is electrically connected with the cathode signal lines; the cathode signal source is electrically connected to at least one end of the cathode signal lines; the detector elements are respectively electrically connected with different sections of at least one cathode signal line, and respectively detect a plurality of cathode signals corresponding to a plurality of sections of the cathode signal line so as to at least correspondingly compensate corresponding light emitting devices.
The display panel and the electronic terminal provided by the embodiments of the present invention are described in detail, and specific examples are applied to illustrate the principles and embodiments of the present invention, and the description of the above embodiments is only used to help understand the technical solution and core ideas of the present invention; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A display panel, comprising:
a substrate;
the wiring layer is positioned on the substrate and comprises a plurality of cathode signal wires;
the cathode layer is positioned at one side of the wiring layer far away from the substrate and is electrically connected with the cathode signal lines;
the cathode signal source is electrically connected to at least one end of the cathode signal lines;
the detector elements are respectively electrically connected with different sections of at least one cathode signal wire, and the detector elements respectively detect a plurality of cathode signals corresponding to a plurality of sections of the cathode signal wire.
2. The display panel of claim 1, wherein the plurality of cathode signal lines includes two first cathode signal lines respectively arranged on two sides, and different segments of at least one of the first cathode signal lines are respectively electrically connected with the plurality of detector elements.
3. The display panel of claim 1, wherein the plurality of cathode signal lines includes at least one second cathode signal line, different segments of the at least one second cathode signal line being electrically connected to the plurality of detector elements, respectively;
the distance between the end part of the second cathode signal wire and the cathode signal source is smaller than the distance between the end part corresponding to the second cathode signal wire and the cathode signal source.
4. The display panel of claim 1, wherein the plurality of cathode signal lines includes a first portion of cathode signal lines, a second portion of cathode signal lines, and a third portion of cathode signal lines, an end of the third portion of cathode signal lines being spaced from the cathode signal source by a distance between an end of the first portion of cathode signal lines and the cathode signal source, and an end of the second portion of cathode signal lines and the cathode signal source;
the third partial cathode signal line comprises at least one third cathode signal line, and different sections in at least one third cathode signal line are respectively and electrically connected with a plurality of detector elements.
5. The display panel of claim 1, wherein the detector comprises a plurality of detection transistors, wherein the gates of the detection transistors are respectively electrically connected to the plurality of first scan lines, one of the sources and the drains of the detection transistors is respectively electrically connected to the plurality of segments of the corresponding cathode signal lines, and the other of the sources and the drains of the detection transistors is electrically connected to the detection lines.
6. The display panel of claim 5, further comprising:
the anode layer is positioned between the wiring layer and the cathode layer and comprises a plurality of anode parts;
the wiring layer comprises a first scanning line and a second scanning line, the first scanning line is further connected to a plurality of corresponding anode parts, and the second scanning line is connected to a plurality of corresponding anode parts.
7. The display panel of claim 6, wherein the routing layer further comprises a data line connected to a corresponding plurality of the anode portions, further comprising:
the data signal source is electrically connected between the detection line and the plurality of data lines and generates a plurality of target data signals corresponding to the plurality of anode parts according to a plurality of data signals corresponding to the plurality of anode parts and a plurality of cathode signals respectively detected by the plurality of detector parts.
8. The display panel of claim 6, wherein the number of the second scan lines between each adjacent two of the first scan lines is the same.
9. The display panel of claim 1, wherein a plurality of the detector elements are electrically connected to a plurality of the cathode signal lines, respectively, each of the detector elements detecting a corresponding one of the cathode signals of a corresponding one of the cathode signal lines.
10. An electronic terminal comprising a display panel as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310384413.3A CN117479688A (en) | 2023-04-07 | 2023-04-07 | Display panel and electronic terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310384413.3A CN117479688A (en) | 2023-04-07 | 2023-04-07 | Display panel and electronic terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117479688A true CN117479688A (en) | 2024-01-30 |
Family
ID=89626282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310384413.3A Pending CN117479688A (en) | 2023-04-07 | 2023-04-07 | Display panel and electronic terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117479688A (en) |
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2023
- 2023-04-07 CN CN202310384413.3A patent/CN117479688A/en active Pending
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