CN114203092B - Display panel and driving method thereof - Google Patents

Display panel and driving method thereof Download PDF

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Publication number
CN114203092B
CN114203092B CN202111574795.3A CN202111574795A CN114203092B CN 114203092 B CN114203092 B CN 114203092B CN 202111574795 A CN202111574795 A CN 202111574795A CN 114203092 B CN114203092 B CN 114203092B
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pixel
display mode
display
display panel
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CN114203092A (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

Abstract

The invention relates to a display panel and a driving method of the display panel, wherein the display panel is characterized in that two pixels, namely a first pixel and a second pixel, are designed in each pixel unit in a pixel array by improving a pixel structure, so that the total number of the pixels in the pixel array is doubled, the aperture ratio of the first pixel and the second pixel is adjusted, the aperture 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 in different display modes, so that the display panel works in a high-current efficiency interval, power consumption is reduced, and the purpose of saving electricity is achieved.

Description

Display panel and driving method thereof
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 traditional display device is affected by the display brightness (luminence) -current efficiency (Current Efficiency) curve (low display brightness and low current efficiency), and under the condition of playing dynamic video in actual use conditions, especially when playing low-gray-scale and low-brightness pictures, the display panel has low efficiency in low brightness, so that the current is larger, so that in normal use environments, the power consumption of the display device (such as televisions, displays, notebook display screens and the like) is higher, the advantage of high efficiency cannot be exerted, and the waste of the power consumption is caused.
Conventional display panels, taking a QLED (Quantum dot light emitting diode) display device as an example, the self-luminance L of the QLED display device QLED And the required display brightness L of the QLED display panel panel The relation of (2) is: l (L) QLED ＝L panel Where Tr represents the transmittance, and AR represents the aperture ratio, i.e., the percentage of the pixel light emitting area to the 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 AR QLED However, with this design, a decrease in the pixel aperture ratio AR may cause an increase in the current density of the pixel, resulting in deterioration of the lifetime of the display panel.
Disclosure of Invention
The invention aims to solve the problem that the service life of the display panel is deteriorated by adopting the prior method for improving the brightness of the display panel by reducing the aperture ratio of pixels.
In order to achieve the above object, the present invention provides a display panel comprising: the display mode identification module is used for confirming the display mode of the display panel, wherein the display mode comprises 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 manner, 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 opening 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 comprises a display screen identification module, wherein the display screen identification module is used for confirming a screen display mode of the display panel in a power-saving display mode, the output end of the display screen identification module is electrically connected with the input end of the driving chip, and the screen display mode comprises a high gray scale display screen and a low gray scale display screen; 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 data voltage to the second pixel.
Optionally, the aperture ratio of the second pixel is 10% -99.9% of the aperture ratio of the first pixel.
Optionally, the first pixel includes at least two first sub-pixels with different colors arranged in sequence, and the second pixel includes at least two second sub-pixels with different colors arranged in sequence.
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 arranged in sequence, and the second pixel includes three second sub-pixels with different colors arranged in sequence.
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 ratio of the other two first sub-pixels; or, the aperture ratios of the three first sub-pixels are 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 ratio 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 also provides a driving method of a display panel, including:
confirming a display mode of the 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 ratio of the second pixel is smaller than that of the first pixel;
and outputting data voltages to the first pixel and the second pixel in the pixel unit if the display mode is a high-resolution display mode.
Optionally, the method further comprises:
confirming a picture display mode of the display panel in a power saving display mode;
outputting a data voltage to the first pixel if the picture display mode is a high gray scale display picture;
and if the picture display mode is a low-gray-scale display picture, outputting a data voltage to the second pixel.
The invention has the beneficial effects that the display panel and the driving method thereof are provided, the display panel is improved in pixel structure, two pixels, namely a first pixel and a 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 ratio of the first pixel and the second pixel is regulated, the aperture 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 in different display modes, thereby enabling the display panel to work in a high-current efficiency interval, reducing power consumption and achieving the purpose of saving electricity.
Drawings
The technical solution and other advantageous effects of the present invention will be made apparent by the following detailed description of the specific embodiments of the present invention with reference to 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 luminance of a conventional display panel;
fig. 3 is a schematic structural view 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 according to an exemplary embodiment of the invention;
fig. 5 is a graph of current efficiency versus light emission luminance of a display panel according to an exemplary embodiment of the present invention;
fig. 6 is a circuit schematic of a pixel unit in a pixel array of a display panel according to an exemplary embodiment of the present invention;
fig. 7 is a schematic view showing pixel arrangement in a pixel unit in a pixel array of a display panel according to an exemplary embodiment of the present 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 illustrating 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. the display device comprises a display panel, 111, a display mode identification module, 112, a display screen identification module, 120, a driving chip, 130, a pixel array, 131, a pixel unit, 1311, a first pixel, 1311a, a first red sub-pixel, 1311b, a first green sub-pixel, 1311c, a first blue sub-pixel, 1312, a second pixel, 1312a, a second red sub-pixel, 1312b, a second green sub-pixel, 1312c and a second blue sub-pixel.
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 be within the scope of the invention.
According to the display panel provided by the invention, through improving 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 opening ratio of the first pixel and the second pixel is adjusted, the opening ratio of the second pixel is smaller than that of the first pixel, and in different display modes, the driving chip is controlled to output data voltage to the first pixel and/or the second pixel, 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 one embodiment of the present invention, referring to fig. 3, 4 and 6, the display panel 100 includes a display mode identification 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 identifying module 111 is configured to identify and confirm the display modes of the display panel 100, where the display modes include 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 display mode of the current display panel 100 is a power saving display mode or a 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 and configured to receive the data voltage Vdata output by the driving chip 120. In this 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 driving integrated circuit (source IC).
If the display mode identification module 111 confirms that the display mode of the display panel 100 is the high resolution display mode, a high resolution display mode identification result is generated and transmitted to the driving chip 120, and after the driving chip 120 receives the identification result, the data voltage Vdata is output 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-transmitting state.
The pixel array of the conventional display panel 1 is shown in fig. 1, taking the 8K pixel design of the conventional display panel 1 as an example, the resolution of the conventional display panel 1 is 7680x4320, that is, the pixel array of the conventional display panel 1 includes 7680x4320 pixel units, each pixel unit includes 1 pixel, and when all the 7680x4320 pixel units are in the light-transmitting state, the conventional display panel 1 is in the high resolution display mode.
In the present embodiment, the number of pixels in each pixel unit 131 is two, including the first pixel 1311 and the second pixel 1312, so that the number of pixels of the display panel 100 provided in the present embodiment is twice that of the 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 ultra-high resolution of 15360×4320.
In addition, the display panel 100 of the present embodiment further includes a display screen identification module 112 for identifying and confirming a screen display mode of the display panel 100 in the power saving display mode, wherein an output end of the display screen identification module 112 is electrically connected to an input end of the driving chip 120, and the screen display mode of the display panel 100 in the power saving display mode includes a high gray scale display screen and a low gray scale display screen.
If the display mode identification module 111 confirms that the display mode of the display panel 100 is the power saving display mode, the display screen identification module 112 further identifies whether the screen display mode of the display panel 100 in the power saving display mode is a high-gray-scale display screen or a low-gray-scale display screen.
If the display screen recognition module 112 confirms that the screen display mode of the display panel 100 is a high-gray-scale display screen (displays a high-gray-scale screen), the display screen recognition module 112 generates a high-gray-scale display screen recognition result and transmits the high-gray-scale display screen recognition result to the driving chip 120, the driving chip 120 receives the recognition result and then outputs the data voltage Vdata to the first pixel 1311 (a pixel with a relatively high aperture ratio of the two pixels of the pixel unit 131), the first pixel 1311 emits light after receiving the data voltage Vdata, and the driving chip 120 does not output the data voltage Vdata to the second pixel 1312 (a pixel with a relatively low aperture ratio of the two pixels of the pixel unit 131), the data voltage Vdata in the second pixel 1312 is 0, and the second pixel 1312 does not emit light and is in a light-tight state.
If the display screen recognition module 112 confirms that the screen display mode of the display panel 100 is the low-gray-scale display screen (displays the low-gray-scale screen), the display screen recognition module 112 generates a low-gray-scale display screen recognition result and transmits the low-gray-scale display screen recognition result to the driving chip 120, the driving chip 120 outputs the data voltage Vdata to the second pixel 1312 (the pixel with the relatively low aperture ratio of the two pixels of the pixel unit 131) after receiving the recognition result, the second pixel 1312 receives the data voltage Vdata and emits light, and the driving chip 120 does not output the data voltage Vdata to the first pixel 1311 (the pixel with the relatively high aperture ratio of 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 the light-tight state.
Therefore, in the power saving display mode, especially when the image display mode is a low gray level display image (the low gray level indicates low image brightness), only the second pixel 1312 with relatively low aperture ratio is in a light transmission state, and the aperture ratio is reduced, so that the brightness of the display panel 100 is improved, the display panel 100 emits light with higher brightness when displaying the low gray level image, and the current efficiency-brightness curve of the display panel 100 shown in fig. 5 is combined, when the display panel 100 displays the low gray level image, the light-emitting brightness is improved, so that the display panel 100 works in a higher current efficiency interval, the higher current efficiency indicates that the current utilization efficiency is high, the display panel 100 can display the low gray level image with lower current consumption and achieve the purpose of saving electricity by combining the higher current efficiency.
When the current efficiency-brightness graph of the conventional display panel 1 shown in fig. 2 is viewed reversely, the conventional display panel 1 displays a low-gray-scale picture, because the picture brightness is low, the current utilization efficiency is low corresponding to the low current efficiency, which means that the power consumption of the conventional display panel 1 is obviously higher than the power consumption of the display panel 100 provided in the embodiment when displaying the low-gray-scale picture.
Therefore, in the display panel 100 provided by the embodiment of the 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 the 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 the light-transmitting state, thereby avoiding the situation that the display brightness is improved by reducing the aperture ratio of all pixels, and the service life of the display panel is lost by adopting the method of reducing the aperture ratio of all pixels.
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 at least 10% of the aperture ratio of the first pixel 1311, and the aperture ratio of the second pixel 1312 is at most 99.9% of the aperture ratio of the first pixel 1311, i.e., 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, life curve, power consumption requirement, and other indexes of the display panel. 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 at the minimum on the premise that the lifetime (for example, 5 years or 10 years) of the display panel 100 satisfies the condition.
Referring to fig. 6, the first pixel 1311 includes three first sub-pixels, i.e., 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 each of the first red sub-pixel 1311a, the first green sub-pixel 1311b, and the first blue sub-pixel 1311C is a pixel structure of 3T1C, i.e., the first red sub-pixel 1311a, the first green sub-pixel 1311b, and the first blue sub-pixel 1311C includes 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 element QLED1, respectively. The gates of the three first switching thin film transistors T1a and the gates of the three sensing thin film transistors T3a are respectively electrically connected with the gate scan line GL, the drains of the three sensing thin film transistors T3a are respectively electrically connected with the first reference line Ref1, the sources of the three driving thin film transistors T2a are respectively electrically connected with the first high-potential power line VDD1, and the cathodes of the three light emitting elements QLED1 are respectively electrically connected with the first low-potential power line VSS 1.
The light emitting element QLED1 in the first red subpixel 1311a emits red light, the light emitting element QLED1 in the first green subpixel 1311b emits green light, and the light emitting element QLED1 in the first blue subpixel 1311c emits blue light. The source electrode of the first switching thin film transistor T1a in the first red subpixel 1311a is electrically connected to the first data line DL 1R The source electrode of the first switching thin film transistor T1a in the first green sub-pixel 1311b is electrically connected to the second data line DL 1G The source electrode of the first switching thin film transistor T1a in the first blue subpixel 1311c is electrically connected to the third data line DL 1B First data line DL 1R Second data line DL 1G And a third data line DL 1B Are electrically connected to the driving chips 120, respectively, to receive the first data voltage Vdata1.
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 3T1C pixel structures, 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 QLED2. The gates of the three second switching thin film transistors T1b and the gates of the three sensing thin film transistors T3b are respectively electrically connected with the gate scan line GL, the drains of the three sensing thin film transistors T3b are respectively electrically connected with the second reference line Ref2, the sources of the three driving thin film transistors T2b are respectively electrically connected with the second high-potential power line VDD2, and the cathodes of the three light emitting elements QLED2 are respectively electrically connected with the second low-potential power line VSS 2.
In other implementations, the light emitters QLED1 and QLED2 may also be replaced with OLED light emitters.
The light emitting element QLED2 in the second red subpixel 1312a emits red light, the light emitting element QLED2 in the second green subpixel 1312b emits green light, and the light emitting element QLED2 in the second blue subpixel 1312c emits blue light. The source electrode of the second switching thin film transistor T1b in the second red subpixel 1312a is electrically connected to the fourth data line DL 2R The source electrode of the second switching thin film transistor T1b in the second green sub-pixel 1312b is electrically connected with the fifth data line DL 2G The source electrode of the second switching thin film transistor T1b in the second blue subpixel 1312c is electrically connected to the sixth data line DL 2B Fourth data line DL 2R Fifth data line DL 2G And a sixth data line DL 2B Are electrically connected to the driving chips 120, respectively, to receive the second data voltages Vdata2.
In the present embodiment, when the display mode of the display panel 100 is the high resolution display mode, the driving chip 120 directs the first data line DL 1R Second data line DL 1G Third data line DL 1B Fourth data line DL 2R Fifth data line DL 2G And a sixth data line DL 2B The data voltage Vdata is output such that the first pixel 1311 and the second pixel 1312 are both in a light-transmitting state.
When the display mode of the display panel 100 is the power saving display mode, the display panel 10When the frame display mode of 0 is the high gray scale display frame, the driving chip 120 goes to the first data line DL 1R Second data line DL 1G And a third data line DL 1B Outputting the first data voltage Vdata1 to the fourth data line DL 2R Fifth data line DL 2G And a sixth data line DL 2B Outputting the second data voltage Vdata2, i.e. the fourth data line DL 2R Fifth data line DL 2G And a sixth data line DL 2B The 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 the light-transmitting 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 the light-non-transmitting state.
When the display mode of the display panel 100 is the power saving display mode and the frame display mode of the display panel 100 is the low gray scale display frame, the driving chip 120 goes to the fourth data line DL 2R Fifth data line DL 2G And a sixth data line DL 2B Outputting the second data voltage Vdata2 not to the first data line DL 1R Second data line DL 1G And a third data line DL 1B Outputting the first data voltage Vdata1, i.e. the first data line DL 1R Second data line DL 1G And a third data line DL 1B The 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-transmitting 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-non-transmitting 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 all different, 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 all different, 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 within the first pixel 1311 is different from the aperture ratio of the other two sub-pixels, or the aperture ratios of all three sub-pixels within the first pixel 1311 are the same. The aperture ratio of only one sub-pixel in the second pixel 1312 is different from the aperture ratio 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 also provides a driving method of a display panel 100, including the steps of:
s100, recognizing and confirming the display mode of the display panel 100 through the display mode recognition module 111;
s110, if the display mode of the display panel 100 is a 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;
s120, if the display mode of the display panel 100 is a power saving display mode, identifying and confirming the picture display mode of the display panel 100 through a display picture identifying module 112;
s130, if the frame display mode is a high gray scale display frame, the driving chip 120 outputs a data voltage Vdata to the first pixel 1311;
s140, if the frame display mode is a low gray scale display frame, the driving chip 120 outputs the 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 preparation 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% -50% of the aperture ratio of the first pixel 1311, that is, the sizes of the cathodes and the anodes of the three light emitting elements QLED1 devices in the first pixel 1311 are different from the sizes of the cathodes and the anodes of the three light emitting elements QLED2 in the second pixel 1312, so as to form the difference of the aperture ratios.
In another implementation, referring to fig. 9, the first pixel 1311 and the second pixel 1311 in the pixel unit 131 may be designed and prepared according to the aperture ratio of the first pixel 1311, and then, part of 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 off by a laser manner, 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 merely a preferred embodiment of the present invention and it should be noted that numerous modifications and adaptations to those skilled in the art could be made without departing from the principles of the present invention, which would also be considered to be within the scope of the invention.

Claims (8)

1. A display panel, comprising:
the display mode identification module is used for confirming the display mode of the display panel, wherein the display mode comprises 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 manner, 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 opening 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 data voltages to the first and second pixels;
the display device further comprises 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 data voltage to the second pixel.
2. The display panel of claim 1, wherein the aperture ratio of the second pixel is 10% to 99.9% of the aperture ratio of the first pixel.
3. The display panel of claim 2, wherein the first pixel comprises at least two sequentially arranged first sub-pixels of different colors, and the second pixel comprises at least two sequentially arranged second sub-pixels of different colors.
4. The display panel of claim 3, wherein the number of the first subpixels in the first pixel is the same as the number of the second subpixels in the second pixel.
5. The display panel of claim 4, wherein the first pixel includes three first sub-pixels of different colors arranged in sequence, and the second pixel includes three second sub-pixels of different colors arranged in sequence.
6. The display panel of claim 5, 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 ratio of the other two first sub-pixels; or, the aperture ratios of the three first sub-pixels are different.
7. The display panel of claim 5, 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 ratio of the other two second sub-pixels; or, the aperture ratios of the three second sub-pixels are different.
8. A driving method of a display panel, comprising:
confirming a display mode of the 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 ratio of the second pixel is smaller than that of the first pixel;
outputting data voltages to a first pixel and a second pixel in a pixel unit if the display mode is a high resolution display mode;
confirming a picture display mode of the display panel in a power saving display mode;
outputting a data voltage to the first pixel if the picture display mode is a high gray scale display picture;
and if the picture display mode is a low-gray-scale display picture, outputting a data voltage to the second pixel.
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