CN114203092A - Display panel and driving method of display panel - Google Patents

Display panel and driving method of display panel Download PDF

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Publication number
CN114203092A
CN114203092A CN202111574795.3A CN202111574795A CN114203092A CN 114203092 A CN114203092 A CN 114203092A CN 202111574795 A CN202111574795 A CN 202111574795A CN 114203092 A CN114203092 A CN 114203092A
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pixel
display
display panel
sub
display mode
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CN114203092B (en
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高阔
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • 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]
    • 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]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention relates to a display panel and a driving method of the display panel, wherein the display panel improves a pixel structure, two pixels, namely a first pixel and a second pixel, are designed in each pixel unit in a pixel array, so that the total number of the pixels in the pixel array is doubled, the aperture opening ratios of the first pixel and the second pixel are adjusted, the aperture opening ratio of the second pixel is smaller than that of the first pixel, and a driving chip outputs data voltage to the first pixel and/or the second pixel under different display modes, so that the display panel works in a high-current efficiency interval, the power consumption is reduced, and the purpose of saving power is achieved.

Description

Display panel and driving method of display panel
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a driving method of the display panel.
Background
The display panel of the conventional display device is affected by a display brightness (Luminance) -Current Efficiency (Current Efficiency) curve (the display brightness is low, the Current Efficiency is low), and under the condition of playing a dynamic video in an actual use condition, especially when playing a low-gray-scale low-brightness picture, because the display panel has low Efficiency in low brightness, the Current is large, so that in a normal use environment, the power consumption of the display device (such as a television, a display, a notebook display screen and the like) is high, the advantage of high Efficiency cannot be exerted, and the waste of the power consumption is caused.
Conventional display panel, with QLED (Quantum dot light emitting diode) displayShowing the device as an example, the intrinsic brightness L of a QLED display deviceQLEDRequired display brightness L of QLED display panelpanelThe relation of (A) is as follows: l isQLED＝LpanelTr represents a transmittance, and AR represents an aperture ratio, i.e., a percentage of a pixel light emitting area to a pixel area. Referring to the relation, in the pixel design of the conventional display panel, the display brightness L of the display device can be improved only by reducing the aperture ratio ARQLEDHowever, with this design, a decrease in the pixel aperture ratio AR may cause an increase in the current density of the pixel, resulting in a deterioration in the lifetime of the display panel.
Disclosure of Invention
The invention aims to solve the problem that the service life of a display panel is deteriorated due to the adoption of the conventional method for reducing the pixel aperture ratio and improving the brightness of the display panel.
To achieve the above object, the present invention provides a display panel including: the display mode identification module is used for confirming the display modes of the display panel, and the display modes comprise a power-saving display mode and a high-resolution display mode; the input end of the driving chip is electrically connected with the output end of the display mode identification module; the pixel array comprises a plurality of pixel units which are arranged in an array, each pixel unit comprises a first pixel and a second pixel, the first pixel and the second pixel are respectively and electrically connected with the output end of the driving chip, and the aperture ratio of the second pixel is smaller than that of the first pixel; in the power-saving display mode, the driving chip outputs a data voltage to the first pixel or the second pixel; in the high resolution display mode, the driving chip outputs a data voltage to the first pixel and the second pixel.
Optionally, the display device further includes a display image recognition module, configured to confirm an image display mode of the display panel in the power saving display mode, where an output end of the display image recognition module is electrically connected to an input end of the driver chip, and the image display mode includes a high gray scale display image and a low gray scale display image; if the picture display mode is a high gray scale display picture, the driving chip outputs data voltage to the first pixel; and if the picture display mode is a low-gray-scale display picture, the driving chip outputs the data voltage to the second pixel.
Optionally, the aperture ratio of the second pixel is 10% to 99.9% of the aperture ratio of the first pixel.
Optionally, the first pixel includes at least two first sub-pixels with different colors, which are sequentially arranged, and the second pixel includes at least two second sub-pixels with different colors, which are sequentially arranged.
Optionally, the number of the first sub-pixels in the first pixel is the same as the number of the second sub-pixels in the second pixel.
Optionally, the first pixel includes three first sub-pixels with different colors, which are sequentially arranged, and the second pixel includes three second sub-pixels with different colors, which are sequentially arranged.
Optionally, the aperture ratios of the three first sub-pixels are the same; or the aperture ratio of one first sub-pixel in the three first sub-pixels is different from the aperture ratios of the other two first sub-pixels; alternatively, the aperture ratios of the three first sub-pixels are all different.
Optionally, the aperture ratios of the three second sub-pixels are the same; or the aperture ratio of one second sub-pixel in the three second sub-pixels is different from the aperture ratios of the other two second sub-pixels; or, the aperture ratios of the three second sub-pixels are different.
In order to achieve the above object, the present invention further provides a driving method of a display panel, including:
confirming a display mode of a display panel;
if the display mode is a power-saving display mode, outputting a data voltage to a first pixel or a second pixel in a pixel unit, wherein the aperture opening ratio of the second pixel is smaller than that of the first pixel;
and if the display mode is a high-resolution display mode, outputting the data voltage to a first pixel and a second pixel in the pixel unit.
Optionally, the method further includes:
confirming a picture display mode of the display panel in a power-saving display mode;
if the picture display mode is a high gray scale display picture, outputting a data voltage to the first pixel;
and if the picture display mode is a low-gray-scale display picture, outputting the data voltage to the second pixel.
The display panel and the driving method of the display panel have the advantages that the display panel improves the pixel structure, two pixels, namely the first pixel and the second pixel, are designed in each pixel unit in the pixel array, so that the total number of the pixels in the pixel array is doubled, the aperture opening ratio of the first pixel and the aperture opening ratio of the second pixel are adjusted, the aperture opening ratio of the second pixel is smaller than that of the first pixel, and the driving chip outputs data voltage to the first pixel and/or the second pixel under different display modes, so that the display panel works in a high-current-efficiency interval, power consumption is reduced, and the purpose of saving power is achieved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic diagram of a pixel array of a conventional display panel;
FIG. 2 is a graph of current efficiency versus light emission luminance of a conventional display panel;
fig. 3 is a schematic structural diagram of a display panel according to an exemplary embodiment of the present invention;
FIG. 4 is a schematic diagram of a pixel array of a display panel in accordance with an exemplary embodiment of the invention;
FIG. 5 is a graph of current efficiency versus light emission luminance for a display panel according to an exemplary embodiment of the present invention;
FIG. 6 is a circuit schematic diagram of a pixel cell in a pixel array of a display panel according to an exemplary embodiment of the invention;
FIG. 7 is a schematic diagram of a pixel arrangement in a pixel unit of a pixel array of a display panel according to an exemplary embodiment of the invention;
fig. 8 is a flowchart of a driving method of a display panel according to an exemplary embodiment of the present invention;
fig. 9 is a schematic diagram of a method for forming a second pixel in a display panel according to an exemplary embodiment of the invention.
The parts in the figure are numbered as follows:
100. display panel, 111, display mode identification module, 112, display frame identification module, 120, driving chip, 130, pixel array, 131, pixel unit, 1311, first pixel, 1311a, first red sub-pixel, 1311b, first green sub-pixel, 1311c, first blue sub-pixel, 1312, second pixel, 1312a, second red sub-pixel, 1312b, second green sub-pixel, 1312c, and second blue sub-pixel.
Detailed Description
The technical solution 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 is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the display panel provided by the invention, the pixel structure is improved, two pixels, namely the first pixel and the second pixel, are designed in each pixel unit in the pixel array, so that the total number of the pixels in the pixel array is doubled, the aperture opening ratios of the first pixel and the second pixel are adjusted, the aperture opening ratio of the second pixel is smaller than that of the first pixel, and the driving chip is controlled to output data voltage to the first pixel and/or the second pixel under different display modes, so that the display panel works in a high-current efficiency interval, the power consumption is reduced, and the purpose of saving electricity is achieved. As a typical application, the display panel may be used on a quantum dot organic light emitting display panel, which may be applied on a display terminal, such as a quantum dot organic light emitting (QLED) display.
In an embodiment of the present invention, referring to fig. 3, 4 and 6, the display panel 100 includes a display pattern recognition module 111, a driving chip 120 and a pixel array 130. The output end of the display mode identification module 111 is electrically connected to the input end of the driving chip 120, and the output end of the driving chip 120 is electrically connected to the pixel array 130.
The display mode identification module 111 is used for identifying and confirming the display modes of the display panel 100, including a power saving display mode and a high resolution display mode. The display mode identification module 111 is used for identifying and confirming whether the current display mode of the display panel 100 is the power saving display mode or the high resolution display mode.
The driving chip 120 is configured to output a data voltage Vdata to the pixel array 130 according to the identification result. The pixel array 130 includes a plurality of pixel units 131 arranged in an array, each pixel unit 131 includes a first pixel 1311 and a second pixel 1312, and the first pixel 1311 and the second pixel 1312 are respectively electrically connected to an output terminal of the driving chip 120 for receiving a data voltage Vdata output by the driving chip 120. In the present embodiment, the aperture ratio of the second pixel 1312 is smaller than that of the first pixel 1311. The driving chip 120 is a source driver integrated circuit (Sourcd IC).
If the display mode identification module 111 determines that the display mode of the display panel 100 is the high resolution display mode, the high resolution display mode identification result is generated and transmitted to the driving chip 120, and after receiving the identification result, the driving chip 120 outputs the data voltage Vdata to both the first pixel 1311 and the second pixel 1312, that is, in the high resolution display mode, both the first pixel 1311 and the second pixel 1312 are in the light-out state.
The pixel array arrangement of the conventional display panel 1 is shown in fig. 1, and taking the design of 8K pixels of the conventional display panel 1 as an example, the resolution of the conventional display panel 1 is 7680 × 4320, that is, the pixel array of the conventional display panel 1 includes 7680 × 4320 pixel units, each pixel unit includes 1 pixel, and when all of the 7680 × 4320 pixel units are in the light-out state, the conventional display panel 1 is in the high-resolution display mode.
In the embodiment, since the number of pixels in each pixel unit 131 is two, and the pixel unit includes the first pixel 1311 and the second pixel 1312, the number of pixels of the display panel 100 provided in the embodiment is one time of the number of pixels of the conventional display panel 1, which is 15360 × 4320, and when the display panel 100 is in the high-resolution display mode, the 15360 × 4320 pixels are all in the light-transmitting state, so that the resolution of the display panel 100 can reach the ultrahigh resolution of 15360 × 4320.
In addition, the display panel 100 of the embodiment further includes a display frame identification module 112 for identifying and confirming the frame display mode of the display panel 100 in the power saving display mode, an output end of the display frame identification module 112 is electrically connected to an input end of the driving chip 120, and the frame display mode of the display panel 100 in the power saving display mode includes a high gray scale display frame and a low gray scale display frame.
If the display mode identification module 111 determines that the display mode of the display panel 100 is the power-saving display mode, the display frame identification module 112 further identifies and confirms whether the frame display mode of the display panel 100 in the power-saving display mode is a high gray-scale display frame or a low gray-scale display frame.
If the display image recognition module 112 determines that the image display mode of the display panel 100 is a high gray-scale display image (displaying a high gray-scale image), the display image recognition module 112 generates a high gray-scale display image recognition result and transmits the high gray-scale display image recognition result to the driving chip 120, the driving chip 120 receives the recognition result and outputs a data voltage Vdata to the first pixel 1311 (a pixel with a relatively high aperture ratio in two pixels of the pixel unit 131), the first pixel 1311 receives the data voltage Vdata and emits light to be in a light-transmitting state, the driving chip 120 does not output the data voltage Vdata to the second pixel 1312 (a pixel with a relatively low aperture ratio in two pixels of the pixel unit 131), the data voltage Vdata in the second pixel 1312 is 0, and the second pixel does not emit light and is in a light-non-transmitting state.
If the display image recognition module 112 determines that the image display mode of the display panel 100 is a low gray-scale display image (displaying a low gray-scale image), the display image recognition module 112 generates a low gray-scale display image recognition result and transmits the low gray-scale display image recognition result to the driving chip 120, the driving chip 120 receives the recognition result and outputs a data voltage Vdata to the second pixel 1312 (a pixel with a relatively low aperture ratio in two pixels of the pixel unit 131), the second pixel 1312 receives the data voltage Vdata and emits light in a light-transmitting state, while the driving chip 120 does not output the data voltage Vdata to the first pixel 1311 (a pixel with a relatively high aperture ratio in the pixel unit 131), the data voltage Vdata in the first pixel 1311 is 0, and the first pixel 1311 does not emit light and is in a light-opaque state.
Therefore, in the power saving display mode, especially when the image display mode is a low gray scale display image (low gray scale represents low image brightness), only the second pixel 1312 with a relatively low aperture ratio is in a light transmitting state, and the aperture ratio is reduced, so that the brightness of the display panel 100 is improved, and thus the display panel 100 emits light with higher brightness when displaying the low gray scale image, in combination with the current efficiency-brightness curve diagram of the display panel 100 shown in fig. 5, when the display panel 100 displays the low gray scale image, the light emitting brightness is improved, so that the display panel 100 works in a higher current efficiency interval, the higher current efficiency means that the current utilization efficiency is high, and the lower current amount represents the higher current efficiency, so that the display panel 100 can display the low gray scale image, reduce power consumption, and achieve the purpose of saving power.
In contrast to the current efficiency-luminance graph of the conventional display panel 1 shown in fig. 2, when the conventional display panel 1 displays a low gray scale image, because the image luminance is lower, the current efficiency is relatively lower, and the current utilization efficiency is low, which indicates that the conventional display panel 1 can display a low gray scale image only by providing a higher current amount in combination with a lower current efficiency, and the power consumption is significantly higher than that of the display panel 100 provided in this embodiment when displaying a low gray scale image.
Therefore, in the display panel 100 according to the embodiment of the present invention, when displaying a high gray scale image, the driving chip 120 outputs the data voltage Vdata to the first pixel 1311, so that the first pixel 1311 is in a light-transmitting state, and when displaying a low gray scale image, the driving chip 120 outputs the data voltage Vdata to the second pixel 1312, so that the second pixel 1312 is in a light-transmitting state, thereby avoiding a situation that the display luminance is improved by reducing the aperture ratio of all pixels, and the lifetime of the display panel is lost by reducing the aperture ratio of all pixels.
Here, the aperture ratio of the second pixel 1312 in this embodiment is 50% of the aperture ratio of the first pixel 1311. In other implementations, the aperture ratio of the second pixel 1312 is 10% of the aperture ratio of the first pixel 1311 at the lowest, and the aperture ratio of the second pixel 1312 is 99.9% of the aperture ratio of the first pixel 1311 at the highest, that is, the aperture ratio of the second pixel 1312 needs to be smaller than the aperture ratio of the first pixel 1311. Specifically, the display panel 100 may be designed according to the current efficiency-display brightness curve, the lifetime curve, the power consumption requirement, and other indexes. If the power consumption is greatly reduced, the aperture ratio of the second pixel 1312 can be reduced to 10% of the aperture ratio of the first pixel 1311 as low as possible on the premise that the lifetime of the display panel 100 (for example, 5 years or 10 years) satisfies the condition.
Referring to fig. 6, the first pixel 1311 includes three first sub-pixels, that is, a first red sub-pixel 1311a, a first green sub-pixel 1311b, and a first blue sub-pixel 1311c, which are sequentially arranged and have different colors, and the first red sub-pixel 1311a, the first green sub-pixel 1311b, and the first blue sub-pixel 1311c are all of a 3T1C pixel structure, that is, the first red sub-pixel 1311a, the first green sub-pixel 1311b, and the first blue sub-pixel 1311c include a first switching thin film transistor T1a, a driving thin film transistor T2a, a sensing thin film transistor T3a, a capacitor Cst1, and a light emitting device QLED1, respectively. The gates of the three first switching tfts T1a and the gates of the three sensing tfts T3a are electrically connected to the gate scanning line GL, the drains of the three sensing tfts T3a are electrically connected to the first reference line Ref1, the sources of the three driving tfts T2a are electrically connected to the first high-potential power line VDD1, and the cathodes of the three light emitting elements QLED1 are electrically connected to the first low-potential power line VSS 1.
Wherein the light emitting member QLED1 in the first red sub-pixel 1311a emits red light, and the first green sub-pixelThe light emitting element QLED1 of the pixel 1311b emits green light, and the light emitting element QLED1 of the first blue sub-pixel 1311c emits blue light. The source of the first switching thin film transistor T1a in the first red subpixel 1311a is electrically connected to the first data line DL1RThe source of the first switching thin film transistor T1a in the first green subpixel 1311b is electrically connected to the second data line DL1GThe source of the first switching thin film transistor T1a in the first blue subpixel 1311c is electrically connected to the third data line DL1BFirst data line DL1RA second data line DL1GAnd a third data line DL1BAre electrically connected to the driving chips 120 to receive the first data voltage Vdata1, respectively.
The second pixel 1312 includes three second sub-pixels, namely a second red sub-pixel 1312a, a second green sub-pixel 1312b and a second blue sub-pixel 1312c, which are sequentially arranged and have different colors, and the second red sub-pixel 1312a, the second green sub-pixel 1312b and the second blue sub-pixel 1312c are all in a pixel structure of 3T1C, namely the second red sub-pixel 1312a, the second green sub-pixel 1312b and the second blue sub-pixel 1312c respectively include a second switching thin film transistor T1b, a driving thin film transistor T2b, a sensing thin film transistor T3b, a capacitor Cst2 and a light emitting element QLED 2. The gates of the three second switching tfts T1b and the gates of the three sensing tfts T3b are electrically connected to the gate scanning line GL, the drains of the three sensing tfts T3b are electrically connected to the second reference line Ref2, the sources of the three driving tfts T2b are electrically connected to the second high-potential power line VDD2, and the cathodes of the three light emitting elements QLED2 are electrically connected to the second low-potential power line VSS 2.
In other embodiments, light emitters QLED1 and QLED2 may be replaced with OLED light emitters.
Among them, the light emitting device QLED2 in the second red sub-pixel 1312a emits red light, the light emitting device QLED2 in the second green sub-pixel 1312b emits green light, and the light emitting device QLED2 in the second blue sub-pixel 1312c emits blue light. The source of the second switching thin film transistor T1b in the second red subpixel 1312a is electrically connected to the fourth data line DL2RThe source of the second switching TFT T1b in the second green sub-pixel 1312b is electrically connected to the secondFive data lines DL2GThe source of the second switching thin film transistor T1b in the second blue subpixel 1312c is electrically connected to the sixth data line DL2BFourth data line DL2RA fifth data line DL2GAnd a sixth data line DL2BAre electrically connected to the driving chips 120 to receive the second data voltage Vdata2, respectively.
In this embodiment, when the display mode of the display panel 100 is the high resolution display mode, the driving chip 120 drives the first data line DL1RA second data line DL1GA third data line DL1BA fourth data line DL2RA fifth data line DL2GAnd a sixth data line DL2BThe data voltage Vdata is output so that the first pixel 1311 and the second pixel 1312 are both in a light-out state.
When the display mode of the display panel 100 is the power saving display mode and the image display mode of the display panel 100 is the high gray scale display image, the driving chip 120 drives the first data line DL1RA second data line DL1GAnd a third data line DL1BOutputs the first data voltage Vdata1 without applying the voltage to the fourth data line DL2RA fifth data line DL2GAnd a sixth data line DL2BThe second data voltage Vdata2, i.e., the fourth data line DL, is output2RA fifth data line DL2GAnd a sixth data line DL2BThe second data voltage Vdata2 is 0, and at this time, the first red subpixel 1311a, the first green subpixel 1311b, and the first blue subpixel 1311c in the first pixel 1311 are in a light-out state, and the second red subpixel 1312a, the second green subpixel 1312b, and the second blue subpixel 1312c in the second pixel 1312 are in a light-out state.
When the display mode of the display panel 100 is the power saving display mode and the image display mode of the display panel 100 is the low gray level display image, the driving chip 120 drives the fourth data line DL2RA fifth data line DL2GAnd a sixth data line DL2BOutputs the second data voltage Vdata2 not to the first data line DL1RA second data line DL1GAnd a third data line DL1BOutputs a first data voltage Vdata1, i.e. a first numberData line DL1RA second data line DL1GAnd a third data line DL1BThe first data voltage Vdata1 is 0, and at this time, the second red subpixel 1312a, the second green subpixel 1312b and the second blue subpixel 1312c in the second pixel 1312 are in the light-out state, and the first red subpixel 1311a, the first green subpixel 1311b and the first blue subpixel 1311c in the first pixel 1311 are in the light-out state.
Referring to fig. 7, in the present embodiment, the aperture ratio of the second red subpixel 1312a in the second pixel 1312 is 30% to 50% of the aperture ratio of the first red subpixel 1311a in the first pixel 1311, the aperture ratio of the second green subpixel 1312b in the second pixel 1312 is 30% to 50% of the aperture ratio of the first green subpixel 1311b in the first pixel 1311, and the aperture ratio of the second blue subpixel 1312c in the second pixel 1312 is 30% to 50% of the aperture ratio of the first blue subpixel 1311c in the first pixel 1311.
In this embodiment, the aperture ratios of the first red subpixel 1311a, the first green subpixel 1311b, and the first blue subpixel 1311c in the first pixel 1311 are different, and specifically, the aperture ratio of the first green subpixel 1311b < the aperture ratio of the first red subpixel 1311a < the aperture ratio of the first blue subpixel 1311 c. The aperture ratios of the second red subpixel 1312a, the second green subpixel 1312b and the second blue subpixel 1312c in the second pixel 1312 are different, and specifically, the aperture ratio of the second green subpixel 1312b < the aperture ratio of the second red subpixel 1312a < the aperture ratio of the second blue subpixel 1312 c. In other implementations, the aperture ratio of only one sub-pixel in the first pixel 1311 is different from the aperture ratios of the other two sub-pixels, or the aperture ratios of the three sub-pixels in the first pixel 1311 are all the same. The aperture ratio of only one sub-pixel in the second pixel 1312 is different from the aperture ratios of the other two sub-pixels, or the aperture ratios of the three sub-pixels in the second pixel 1312 are all the same.
Referring to fig. 8, an embodiment of the present invention further provides a driving method of a display panel 100, including the following steps:
s100, identifying and confirming the display mode of the display panel 100 through the display mode identification module 111;
s110, if the display mode of the display panel 100 is the high resolution display mode, the driving chip 120 outputs the data voltage Vdata to the first pixel 1311 and the second pixel 1312 in the pixel unit 131 respectively;
s120, if the display mode of the display panel 100 is the power saving display mode, identifying and confirming the screen display mode of the display panel 100 by the display screen identification module 112;
s130, if the image display mode is a high gray scale display image, the driving chip 120 outputs a data voltage Vdata to the first pixel 1311;
s140, if the image display mode is a low gray scale display image, the driving chip 120 outputs a data voltage Vdata to the second pixel 1312.
The first pixel 1311 and the second pixel 1312 are formed in the following manner:
in the design and manufacturing stage, the aperture ratio of the first pixel 1311 and the aperture ratio of the second pixel 1312 are determined, that is, the aperture ratio of the second pixel 1312 is 30% to 50% of the aperture ratio of the first pixel 1311, that is, the sizes of the cathode and the anode of the device of the three light emitting members QLED1 in the first pixel 1311 are different from the sizes of the cathode and the anode of the device of the three light emitting members QLED2 in the second pixel 1312, so as to form a difference in aperture ratio.
In another implementation, referring to fig. 9, both the first pixel 1311 and the second pixel in the pixel unit 131 may be designed and prepared according to the aperture ratio of the first pixel 1311, and then, the cathodes of the second red subpixel 1312a, the second green subpixel 1312b and the second blue subpixel 1312c in the second pixel are burned out by laser, so as to reduce the light emitting areas of the second red subpixel 1312a, the second green subpixel 1312b and the second blue subpixel 1312c and reduce the aperture ratio of the second pixel 1312.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that various modifications and decorations can be made by those skilled in the art without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A display panel, comprising:
the display mode identification module is used for confirming the display modes of the display panel, and the display modes comprise a power-saving display mode and a high-resolution display mode;
the input end of the driving chip is electrically connected with the output end of the display mode identification module;
the pixel array comprises a plurality of pixel units which are arranged in an array, each pixel unit comprises a first pixel and a second pixel, the first pixel and the second pixel are respectively and electrically connected with the output end of the driving chip, and the aperture ratio of the second pixel is smaller than that of the first pixel;
in the power-saving display mode, the driving chip outputs a data voltage to the first pixel or the second pixel;
in the high resolution display mode, the driving chip outputs a data voltage to the first pixel and the second pixel.
2. The display panel of claim 1,
the display panel is characterized by further comprising a display picture identification module, wherein the display picture identification module is used for confirming a picture display mode of the display panel in a power-saving display mode, the output end of the display picture identification module is electrically connected with the input end of the driving chip, and the picture display mode comprises a high-gray-scale display picture and a low-gray-scale display picture;
if the picture display mode is a high gray scale display picture, the driving chip outputs data voltage to the first pixel;
and if the picture display mode is a low-gray-scale display picture, the driving chip outputs the data voltage to the second pixel.
3. The display panel according to claim 2, wherein an aperture ratio of the second pixel is 10% to 99.9% of an aperture ratio of the first pixel.
4. The display panel according to claim 3, wherein the first pixel includes at least two sequentially arranged first sub-pixels having different colors, and the second pixel includes at least two sequentially arranged second sub-pixels having different colors.
5. The display panel according to claim 4, wherein the number of the first sub-pixels in the first pixel is the same as the number of the second sub-pixels in the second pixel.
6. The display panel according to claim 5, wherein the first pixel includes three first sub-pixels having different colors arranged in sequence, and the second pixel includes three second sub-pixels having different colors arranged in sequence.
7. The display panel according to claim 6, wherein the aperture ratios of the three first sub-pixels are the same; or the aperture ratio of one first sub-pixel in the three first sub-pixels is different from the aperture ratios of the other two first sub-pixels; alternatively, the aperture ratios of the three first sub-pixels are all different.
8. The display panel according to claim 6, wherein the aperture ratios of the three second sub-pixels are the same; or the aperture ratio of one second sub-pixel in the three second sub-pixels is different from the aperture ratios of the other two second sub-pixels; or, the aperture ratios of the three second sub-pixels are different.
9. A method of driving a display panel, comprising:
confirming a display mode of a display panel;
if the display mode is a power-saving display mode, outputting a data voltage to a first pixel or a second pixel in a pixel unit, wherein the aperture opening ratio of the second pixel is smaller than that of the first pixel;
and if the display mode is a high-resolution display mode, outputting the data voltage to a first pixel and a second pixel in the pixel unit.
10. The driving method of a display panel according to claim 9,
further comprising:
confirming a picture display mode of the display panel in a power-saving display mode;
if the picture display mode is a high gray scale display picture, outputting a data voltage to the first pixel;
and if the picture display mode is a low-gray-scale display picture, outputting the data voltage to the second pixel.
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