WO2021129451A1 - 显示装置、电子设备和对显示面板进行老化补偿的方法 - Google Patents

显示装置、电子设备和对显示面板进行老化补偿的方法 Download PDF

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WO2021129451A1
WO2021129451A1 PCT/CN2020/136373 CN2020136373W WO2021129451A1 WO 2021129451 A1 WO2021129451 A1 WO 2021129451A1 CN 2020136373 W CN2020136373 W CN 2020136373W WO 2021129451 A1 WO2021129451 A1 WO 2021129451A1
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Prior art keywords
display area
brightness
reference value
light
value
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PCT/CN2020/136373
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English (en)
French (fr)
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杨学炎
李鑫辉
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北京集创北方科技股份有限公司
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Publication of WO2021129451A1 publication Critical patent/WO2021129451A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/04Maintaining the quality of display appearance
    • G09G2320/043Preventing or counteracting the effects of ageing
    • G09G2320/046Dealing with screen burn-in prevention or compensation of the effects thereof

Definitions

  • the present invention relates to the technical field of display panels, and more specifically, to display devices, electronic equipment and methods for compensating for aging of display panels.
  • the prior art under-screen camera technology is to provide a transparent display area 31 and a non-transparent display area 32 on an OLED (organic light emitting diode) display panel 1.
  • the under-screen camera 33 is placed under the transparent display area 31.
  • the non-transparent display area 32 includes a cathode layer 13, an organic light-emitting material layer 14, and an anode layer 15.
  • the cathode layer 13 and the anode layer 15 are opaque. Therefore, after the external light/ambient light 11 passes through the non-transparent display device 10, the transmitted light 16 is very small and cannot be photographed, but the organic light-emitting material layer 14 can emit OLED light 12. So it can be used for display.
  • the transparent display area 20 includes a transparent cathode layer 13', an organic light-emitting material layer 14, and a transparent anode layer 15'. Since the transparent cathode layer 13' and the transparent anode layer 15' are transparent, the external light/ambient light 11 can be transmitted through the transparent display area 20, so that the image can be taken.
  • one method of aging compensation is to measure the aging state by adding a monitoring line on the display panel, and then manually compensate, and the other is to use an ideal aging model to calculate and adjust. Both methods are not convenient.
  • the purpose of the present invention is to make it possible to conveniently compensate for the aging of the OLED display panel.
  • a display device including:
  • a display panel having a first display area and a second display area, the pixel density of the first display area is lower than the pixel density of the second display area;
  • a collecting unit arranged under the first display area, and used for collecting light incident on the first display area;
  • the compensation unit uses the first parameter obtained based on the light brightness collected by the collection unit to perform aging compensation on the display panel.
  • the compensation unit includes:
  • a light intensity extraction unit connected to the collection unit, and collects the light intensity from the light collected by the collection unit;
  • the compensation calculation processing unit is connected to the light intensity extraction unit.
  • the compensation calculation processing unit is configured to perform the following steps:
  • a first parameter for aging compensation for the first display area is determined.
  • the obtaining the reference value of the luminance of the first display area includes:
  • the compensation unit further includes: a voltage compensation circuit connected to the compensation calculation processing unit to adjust the power supply voltage of the first display area according to the determined first parameter.
  • the compensation calculation processing unit is further configured to adjust the power supply voltage of the first display area according to the determined first parameter.
  • the compensation calculation processing unit is further configured to:
  • a second parameter for aging compensation for the second display area is determined.
  • the obtaining the reference value of the brightness of the second display area includes:
  • the compensation unit further includes: a voltage compensation circuit connected to the compensation calculation processing unit to adjust the power supply voltage of the second display area according to the determined second parameter.
  • the compensation calculation processing unit is further configured to adjust the power supply voltage of the second display area according to the determined second parameter.
  • the compensation unit is further configured to perform color temperature correction on the display panel, and the brightness extraction unit is also configured to extract red brightness values, green brightness values, and blue brightness values from the collected brightness. Brightness value.
  • the compensation calculation processing unit is also used to perform: obtain the reference value of the red light brightness value, the reference value of the green light brightness value, and the reference value of the blue light brightness value of the first display area; The brightness value and the blue brightness value are compared with the obtained reference value of the red brightness value of the first display area, the reference value of the green brightness value, and the reference value of the blue brightness value to determine the color temperature correction for the first display area
  • the compensation unit further includes: a voltage compensation circuit, connected to the compensation calculation processing unit, according to the determined first red photovoltage offset, first green photovoltage offset, and first blue photovoltage The offset is used to adjust the red light power supply voltage, the green light power supply voltage, and the blue light power supply voltage of the first display area.
  • a voltage compensation circuit connected to the compensation calculation processing unit, according to the determined first red photovoltage offset, first green photovoltage offset, and first blue photovoltage The offset is used to adjust the red light power supply voltage, the green light power supply voltage, and the blue light power supply voltage of the first display area.
  • the compensation calculation processing unit is further configured to adjust the red color of the first display area according to the determined first red photovoltage offset, first green photovoltage offset, and first blue photovoltage offset.
  • the compensation calculation processing unit is further configured to:
  • the compensation unit further includes: a voltage compensation circuit, connected to the compensation calculation processing unit, according to the determined second red photovoltage offset, second green photovoltage offset, and second blue photovoltage The offset is used to adjust the red light power supply voltage, the green light power supply voltage, and the blue light power supply voltage of the second display area.
  • a voltage compensation circuit connected to the compensation calculation processing unit, according to the determined second red photovoltage offset, second green photovoltage offset, and second blue photovoltage The offset is used to adjust the red light power supply voltage, the green light power supply voltage, and the blue light power supply voltage of the second display area.
  • the compensation calculation processing unit is further configured to adjust the red color of the second display area according to the determined second red photovoltage offset, second green photovoltage offset, and second blue photovoltage offset.
  • an electronic device including the display device as described above.
  • an electronic device selected from the group consisting of a mobile phone, a tablet computer, a notebook computer, an all-in-one computer, a smart watch, and an access control device, the electronic device including the display device as described above .
  • a method for aging compensation for a display panel the display panel having a first display area and a second display area, the pixel density of the first display area is lower than that of the second display area
  • a collection unit is provided below the first display area, and the method includes: using the collection unit to collect light; using the first parameter derived from the brightness of the light collected by the collection unit, The display panel performs aging compensation.
  • the performing aging compensation on the display panel by using the first parameter derived from the brightness of the light collected by the collection unit includes:
  • a first parameter for aging compensation for the first display area is determined.
  • the method further includes:
  • a second parameter for aging compensation for the second display area is determined.
  • the display panel provided by the present invention has a first display area (area above the under-screen acquisition unit) and a second display area (normal display area), and the pixel density of the first display area is lower than the pixel density of the second display area In this way, the pixel position in the first display area can be displayed, and the position outside the pixel can be captured by the under-screen acquisition unit. Since the first display area has the same pixels as the normal display area, that is, the second display area, some parameters in the light collected from the under-screen acquisition unit can reflect the aging of the display panel, thus clever use Some parameters in the light collected by the under-screen collection unit can conveniently perform aging compensation on the display panel, avoiding the tedious processing of the prior art.
  • FIG. 1 shows a schematic structural diagram of a display device with an OLED display panel according to the prior art
  • FIG. 2 shows a side view structure diagram of a display device according to an embodiment of the present invention
  • 3A-B show the appearance of a display device with an under-screen acquisition unit according to an embodiment of the present invention
  • 4A-C show a first display area and a second display area with different pixel densities according to an embodiment of the present invention
  • 5A-B show structural diagrams of a display device according to an embodiment of the present invention.
  • FIG. 6A shows the change curve of the attenuation ratio of the OLED display panel with the loss time under different loss intensities according to an embodiment of the invention
  • FIG. 6B shows the variation curve of the brightness of the OLED display panel according to the embodiment of the present invention with the gray level.
  • Non-transparent display area 32
  • FIG. 2 shows a side view of the structure of the display device 1 according to an embodiment of the present invention.
  • the display device 1 includes an organic light-emitting diode OLED display panel and an under-screen collection unit 33.
  • the under-screen collection unit 33 may be an under-screen camera or other equipment capable of collecting light.
  • the organic light emitting diode OLED display panel has a first OLED area 31 and a second OLED area 32.
  • the first OLED area 31 and the second OLED area 32 both contain pixels 19, the position of the pixel 19 is opaque, and the position of the first OLED area 31 except the pixel 19 is transparent.
  • the pixel density of the first OLED area 31 is lower than the pixel density of the second OLED area 32.
  • the under-screen collection unit 33 is arranged under the first OLED area, and is used to collect the light incident on the first OLED area.
  • the position of the first OLED area 31 except for the pixels 19 transmits light, which ensures that the under-screen acquisition unit 33 can take pictures.
  • the first OLED area 31 has pixels, and the position of the pixels can be used for display.
  • the light collected by the under-screen collection unit 33 can reflect the aging of the OLED display panel, so that some parameters obtained from the light collected by the under-screen collection unit 33 can be used to perform the measurement on the OLED display panel. Aging compensation.
  • 3A-B show the appearance of a display device with an under-screen acquisition unit 33 according to an embodiment of the present invention. It can be seen from this that the under-screen collection unit 33 is faintly visible under the first OLED area 31. Since the pixel density of the first OLED area 31 is lower than that of the second OLED area 32, the first OLED area 31 is generally more transparent than the second OLED area 32 and can transmit light, but due to the existence of pixels, it is not completely Transparent.
  • FIGS. 4A-C show top views of an OLED display panel with three different pixel arrangements according to an embodiment of the present invention.
  • the hollow diamonds represent red pixels
  • the hollow diamonds with dots in the middle represent green pixels
  • the hollow diamonds with + in the middle represent blue pixels. It can be seen from these figures that although the red, green, and blue pixels are arranged in different ways, no matter which arrangement, the pixel density of the first OLED area 31 is lower than that of the second OLED area 32.
  • FIG. 5A-B show structural diagrams of a display device according to an embodiment of the present invention.
  • FIG. 5A shows the first OLED area 31 and the second OLED area 32 from the side of the OLED display panel.
  • FIG. 5B shows the first OLED area 31 and the second OLED area 32 from the top of the OLED display panel.
  • the compensation unit 34 uses the light collected by the under-screen collection unit 33 to compensate the aging of the OLED display panel.
  • the compensation unit 34 includes an image signal processing (Image Signal Process, ISP) bridge 35 and a compensation calculation processing unit 36.
  • ISP Image Signal Process
  • the light brightness extraction unit 35 is connected to the under-screen collection unit 33 and collects the light brightness from the light collected by the under-screen collection unit 33.
  • the light intensity extraction unit 35 may be an ISP bridge, or other circuits or units capable of obtaining light intensity.
  • the compensation calculation processing unit 36 is connected to the light intensity extraction unit 35.
  • the compensation calculation processing unit 36 determines the attenuation ratio of the first OLED area based on the loss parameter of the first OLED area.
  • the loss parameters here can include loss time and loss intensity, but can also be other loss parameters.
  • FIG. 6A shows the curve of the change of the attenuation ratio of the OLED display panel or the OLED pixel with the loss time under different loss intensities.
  • the loss intensity is measured by current density in amperes/square meter, and the time is in hours. Based on the loss intensity of the OLED display panel, the corresponding curve can be found in FIG. 6A, and then the corresponding attenuation ratio can be found on the curve according to the loss curve.
  • the compensation calculation processing unit 36 also determines the light transmission brightness of the first OLED area based on the gray level of the first OLED area.
  • Fig. 6B shows the curve of the transmitted light brightness with the gray level. Therefore, according to the gray level of the first OLED area, the corresponding transmittance brightness can be found on the curve.
  • This light transmittance brightness is the light brightness that the OLED area can transmit without any loss.
  • the OLED area brightness reference value refers to the light brightness that is transmitted when there is no aging in the OLED area. In the case of no aging, it is just that the material of the OLED area has not changed to another substance, but due to wear and other reasons, its light transmission is also lossy.
  • the current luminous brightness reference value of the OLED area should be the transmittance brightness without loss divided by the attenuation ratio (that is, the ratio of the decrease in transmittance brightness due to wear and tear, etc.), that is, the determined transmittance brightness is divided by the determined attenuation Ratio to obtain the reference value of the luminance of the first OLED area.
  • the brightness extraction unit 35 outputs the actual brightness value transmitted by the first OLED area, which is divided by the obtained first OLED area brightness reference value, and the obtained ratio is called the first ratio.
  • the first ratio is the ratio of the actual light brightness value transmitted by the first OLED area to the reference value, and it can be seen from this that the actual light brightness value transmitted by the first OLED area deviates from the reference value in percentage. Based on this ratio, the deviation of the actual transmitted light brightness value from the reference value can be obtained.
  • the first parameter for aging compensation for the first OLED area can be determined.
  • the first parameter may be a first power offset, but may also be other parameters for adjusting the power supply voltage of the first OLED area. Then, the first parameter can be used to adjust the power supply voltage of the first OLED area.
  • the power supply voltage of the first OLED area can be adjusted by using this first parameter by setting a power compensation circuit 37 in the compensation unit 34, as shown in FIGS. 5A-B.
  • the power compensation circuit 37 is connected to the compensation calculation processing unit 36, and adjusts the power supply voltage of the first OLED area according to the determined first parameter.
  • the voltage compensation circuit 37 in FIGS. 5A-B may be omitted. In this way, the function of adjusting the power supply voltage of the first OLED area according to the determined first parameter is completed by the compensation calculation processing unit 36.
  • the compensation calculation processing unit 36 may also refer to the curve shown in FIG. 6A to determine the loss based on the loss parameter of the second OLED area.
  • the attenuation ratio of the second OLED area may be determined based on the loss time and the loss intensity of the second OLED area.
  • the curve shown in FIG. 6A may be determined based on the loss time and the loss intensity of the second OLED area.
  • the transmittance brightness of the second OLED area can be determined, which is the transmittance brightness of the second OLED area when the second OLED area is not depleted.
  • Transmittance brightness reference value After using for a period of time, due to loss, the reference value of light transmission brightness will be reduced. Divide the determined light transmission brightness by the determined attenuation ratio to obtain the reference value of light brightness of the second OLED area. The reference value of the area's brightness.
  • the compensation calculation processing unit 36 determines the ratio of the light intensity output by the light intensity extraction unit 35 to the acquired light intensity reference value of the second OLED area, and divides the ratio by the pixel density ratio of the second OLED area to the first OLED area, Get the second ratio.
  • the second OLED area brightness reference value is the brightness of the second OLED area that should be transmitted when the second OLED area is not aging at all, so this second ratio is between the actual brightness of the second OLED area and the reference brightness of the light. It reflects the aging degree of the second OLED area. Similar to determining the first parameter for aging compensation for the first OLED area based on the first ratio, here, the second parameter for aging compensation for the second OLED area may also be determined based on the second ratio.
  • the second parameter here can be the second power offset, but can also be other parameters used to compensate for the aging of the second OLED area.
  • adjusting the power supply voltage of the second OLED area according to the determined second parameter can be completed by the voltage compensation circuit 37 in FIGS. 5A-B, or It may be completed by the compensation calculation processing unit 36, so that the voltage compensation circuit 37 is omitted.
  • the compensation unit 34 can not only compensate for the aging of the OLED display panel, but also correct the color temperature.
  • the brightness extraction unit 35 When performing color temperature correction, the brightness extraction unit 35 also extracts the red brightness value, the green brightness value, and the blue brightness value from the collected brightness.
  • the compensation calculation processing unit 36 obtains the reference value of the red light brightness value, the reference value of the green light brightness value, and the reference value of the blue light brightness value of the first OLED area.
  • the reference value of the red brightness value, the reference value of the green brightness value, and the reference value of the blue brightness value refer to the brightness value of the red light and the green light that should be transmitted when the OLED area is not aging at all.
  • the specific method may be: determining the attenuation ratio of the first OLED area based on the loss parameter of the first OLED area, wherein, specifically, the first OLED area may be determined based on the loss time and the loss intensity of the first OLED area Then, based on the gray level of the first OLED area, determine the red light luminance value, green light luminance value, and blue light luminance value of the first OLED area through light. These light luminances are the reference values of the red light luminance value, the green light luminance value, and the blue light luminance value that the first OLED area transmits when there is no loss. Once used, it is necessary to divide these transmittance brightness by the determined attenuation ratio to obtain the current reference value of the red brightness value, the reference value of the green brightness value, and the reference value of the blue brightness value after the loss.
  • the compensation calculation processing unit 36 combines the extracted red light brightness value, green light brightness value, blue light brightness value and the acquired reference value of the red light brightness value, green light brightness value, and blue light brightness of the first OLED area.
  • the former is the actual red brightness value, the green brightness value, and the blue brightness value actually obtained, and the latter is the current red brightness value and green brightness value that the first OLED area should have when aging is not considered.
  • the red photovoltage offset, the green photovoltage offset, and the blue light that need to be performed in the first OLED area can be determined by determining the difference between the two.
  • the voltage offset is the first red photovoltage offset, the first green photovoltage offset, and the first blue photovoltage offset for performing color temperature correction on the first OLED area.
  • the compensation calculation processing unit 36 also obtains the reference value of the red light brightness value and the reference value of the green light brightness value of the second OLED area. , The reference value of the blue light brightness value.
  • the specific method may be: determining the attenuation ratio of the second OLED area based on the loss parameter of the second OLED area, wherein, specifically, the second OLED area may be determined based on the loss time and the loss intensity of the second OLED area Then, based on the gray level of the second OLED area, determine the red light luminance value, green light luminance value, and blue light luminance value of the second OLED area through light.
  • These light luminances are the reference values of the red light luminance value, the green light luminance value, and the blue light luminance value that the second OLED area transmits when there is no loss. Once used, it is necessary to divide these transmittance brightness by the determined attenuation ratio to obtain the current reference value of the red brightness value, the reference value of the green brightness value, and the reference value of the blue brightness value after the loss.
  • the compensation calculation processing unit 36 divides the obtained reference value of the red light luminance value, the green light luminance value, and the blue light luminance value of the second OLED area by the difference between the second OLED area and the first OLED area.
  • the pixel density ratio obtains the adjusted reference value of the red light luminance value, the adjusted reference value of the green light luminance value, and the adjusted reference value of the blue light luminance value.
  • the compensation calculation processing unit 36 combines the extracted red light intensity value, green light intensity value, and blue light intensity value with the adjusted reference value of the red light intensity value, the adjusted reference value of the green light intensity value, and the blue light intensity value.
  • the adjusted reference value of the comparison is the red light brightness value, the green light brightness value, and the blue light brightness value extracted from the first OLED area. Although the latter is calculated based on the second OLED area, it is divided by the second OLED area and the first OLED area. For the pixel density ratio, the obtained reference value becomes the transmitted red light luminance value, green light luminance value, and blue light luminance value of the first OLED area. From the difference between the two, the influence of the temperature can be reflected.
  • the red light voltage, green light voltage, and blue voltage of the power supply voltage of the second OLED area must be given an offset respectively, that is, the second red light for color temperature correction of the second OLED area.
  • the voltage offset, the second green photovoltage offset, and the second blue photovoltage offset are the red light voltage, green light voltage, and blue photovoltage offset.
  • first OLED area 31 and the second OLED area 32 describe the first OLED area 31 and the second OLED area 32, those skilled in the art know that the present invention can also be applied to other non-OLED first display areas 31 and second display areas 32.

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Abstract

本申请公开了一种显示装置、电子设备和对显示面板进行老化补偿的方法。该显示装置包括:显示面板,具有第一显示区域和第二显示区域,所述第一显示区域的像素密度低于第二显示区域的像素密度;采集单元,设置在所述第一显示区域的下面,用于采集射入第一显示区域的光;补偿单元,利用基于所述采集单元采集的光亮度得出的第一参数,对所述显示面板进行老化补偿。本发明使得能够便捷地对显示装置的显示面板进行老化补偿。

Description

显示装置、电子设备和对显示面板进行老化补偿的方法
本申请要求了2019年12月25日提交的、申请号为CN201911357890.0、发明名称为“显示装置、电子设备和对显示面板进行老化补偿的方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示面板技术领域,更具体地,涉及显示装置、电子设备和对显示面板进行老化补偿的方法。
背景技术
现有技术的屏下摄像头技术,如图1所示,是在OLED(有机发光二极管)显示面板1设置透明显示区31和非透明显示区32。将屏下摄像头33放置在透明显示区31的下面。非透明显示区32包括阴极层13、有机发光材料层14、阳极层15。阴极层13和阳极层15是不透明的,因此外界光/环境光11透过非透明显示装置10后,透射光16很少,不能摄像,但有机发光材料层14是可以发出OLED光12的,因此可以用于显示。透明显示区20包括透明阴极层13’、有机发光材料层14、透明阳极层15’。由于透明阴极层13’、透明阳极层15’是透明的,外界光/环境光11能够透射过透明显示区20,因此能够摄像。
OLED显示面板随着使用时间的增加,会变得老化。现有技术进行老化补偿的方法,一种是通过在显示面板上增加监测线测量老化状态,然后人工补偿,另一种是用理想老化模型进行计算,并进行调整,两种方式都不便捷。
发明内容
鉴于上述问题,本发明的目的在于使得能够便捷地对OLED显示面板进行老化补偿。
根据本发明的一方面,提供一种显示装置,包括:
显示面板,具有第一显示区域和第二显示区域,所述第一显示区域的像素密度低于第二显示区域的像素密度;
采集单元,设置在所述第一显示区域的下面,用于采集射入第一显示区域的光;
补偿单元,利用基于所述采集单元采集的光亮度得出的第一参数,对所述显示面板进行老化补偿。
可选地,所述补偿单元包括:
光亮度提取单元,连接到所述采集单元,从所述采集单元采集的光中采集光亮度;
补偿计算处理单元,连接到所述光亮度提取单元。
可选地,所述补偿计算处理单元,用于执行以下步骤:
获取第一显示区域光亮度基准值;
确定所述光亮度采集第一输出的光亮度与获取的第一显示区域光亮度基准值的第一比值;
基于所述第一比值,确定对第一显示区域进行老化补偿的第一参数。
可选地,所述获取第一显示区域光亮度基准值,包括:
基于所述第一显示区域的损耗参数,确定所述第一显示区域的衰减比;
基于所述第一显示区域的灰度级别,确定所述第一显示区域的透光亮度;
用确定的透光亮度除以确定的衰减比,得到第一显示区域光亮度基准值。
可选地,所述补偿单元还包括:电压补偿电路,连接到所述补偿计算处理单元,按照确定的第一参数,调整第一显示区域的供电电压。
可选地,所述补偿计算处理单元还用于按照确定的第一参数,调整第一显示区域的供电电压。
可选地,所述补偿计算处理单元还用于:
获取第二显示区域光亮度基准值;
确定所述光亮度提取单元输出的光亮度与获取的第二显示区域光亮度基准值的比值,并用该比值除以第二显示区域与第一显示区域的像素密度比,得到第二比值;
基于所述第二比值,确定对第二显示区域进行老化补偿的第二参数。
可选地,所述获取第二显示区域光亮度基准值,包括:
基于所述第二显示区域的损耗参数,确定所述第二显示区域的衰减比;
基于所述第二显示区域的灰度级别,确定所述第二显示区域的透光亮度;
用确定的透光亮度除以确定的衰减比,得到第二显示区域光亮度基准值。
可选地,所述补偿单元还包括:电压补偿电路,连接到所述补偿计算处理单元,按照确定的第二参数,调整第二显示区域的供电电压。
可选地,所述补偿计算处理单元还用于按照确定的第二参数,调整第二显示区域的供电电压。
可选地,所述补偿单元还用于对所述显示面板进行色温校正,其中,所述光亮度提取单元还用于从采集的光亮度中提取红色光亮度值、绿色光亮度值、蓝色光亮度值。所述补偿计算处理单元还用于执行:获取第一显示区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值;将提取的红色光亮度值、绿色光亮度值、蓝色光亮度值与获取的第一显示 区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值进行比较,从而确定对第一显示区域进行色温校正的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量。
可选地,所述补偿单元还包括:电压补偿电路,连接到所述补偿计算处理单元,按照确定的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量,调整第一显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
可选地,所述补偿计算处理单元还用于按照确定的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量,调整第一显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
可选地,所述补偿计算处理单元还用于:
获取第二显示区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值;
将获取的第二显示区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值分别除以第二显示区域与第一显示区域的像素密度比,得到红色光亮度值的调整后基准值、绿色光亮度值的调整后基准值、蓝色光亮度值的调整后基准值;
将提取的红色光亮度值、绿色光亮度值、蓝色光亮度值,与红色光亮度值的调整后基准值、绿色光亮度值的调整后基准值、蓝色光亮度值的调整后基准值进行比较,从而确定对第二显示区域进行色温校正的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量。
可选地,所述补偿单元还包括:电压补偿电路,连接到所述补偿计算处理单元,按照确定的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量,调整第二显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
可选地,所述补偿计算处理单元还用于按照确定的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量,调整第二显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
根据本发明的一方面,提供了一种电子设备,所述电子设备包括根据如上所述的显示装置。
根据本发明的一方面,提供了一种从手机、平板电脑、笔记本电脑、一体式电脑、智能手表和门禁装置组成的群组中选择的电子设备,所述电子设备包括如上所述的显示装置。
根据本发明的一方面,提供了一种对显示面板进行老化补偿的方法,所述显示面板具有第一显示区域和第二显示区域,所述第一显示区域的像素密度低于第二显示区域的像素密度,所述第一显示区域的下面设置有采集单元,所述方法包括:利用所述采集单元采集光;利用从所述采集单元采集的光的光亮度得出的第一参数,对所述显示面板进行老化补偿。
可选地,所述利用从所述采集单元采集的光的光亮度得出的第一参数,对所述显示面板进行老化补偿,包括:
获取从所述采集单元采集的光的光亮度;
获取第一显示区域光亮度基准值;
确定采集的光亮度与获取的第一显示区域光亮度基准值的第一比值;
基于所述第一比值,确定对第一显示区域进行老化补偿的第一参数。
可选地,在所述获取从所述采集单元采集的光的光亮度之后,所述方法还包括:
获取第二显示区域光亮度基准值;
确定光亮度提取单元获取的光亮度与所述第二显示区域光亮度基准值的比值,并用该比值除以第二显示区域与第一显示区域的像素密度比,得到第二比值;
基于所述第二比值,确定对第二显示区域进行老化补偿的第二参数。
本发明提供的显示面板,具有第一显示区域(屏下采集单元上面的区域)和第二显示区域(正常显示区域),所述第一显示区域的像素密度低于第二显示区域的像素密度,这样,在第一显示区域的像素位置就能显示,而像素以外的位置就能用屏下采集单元摄像。由于此时第一显示区域有与正常显示区域,即第二显示区域同样的像素存在,这时从屏下采集单元采集的光中的一些参数中就能反映显示面板的老化,从而巧妙地利用屏下采集单元采集的光中的一些参数,便捷地对所述显示面板进行老化补偿,避免了现有技术的繁琐处理。
附图说明
通过以下参照附图对本发明实施例的描述,本发明的上述以及其他目的、特征和优点将更为清楚,在附图中:
图1示出了根据现有技术的具有OLED显示面板的显示装置的结构示意图;
图2示出了根据本发明实施例的显示装置的侧视结构图;
图3A-B示出了本发明实施例带有屏下采集单元的显示装置外观图;
图4A-C示出了根据本发明实施例具有不同像素密度的第一显示区域和第二显示区域;
图5A-B示出了根据本发明实施例的显示装置的结构图;
图6A示出了根据本发明实施例的不同损耗强度下OLED显示面板的衰减比随损耗时间的变化曲线;
图6B示出了根据本发明实施例的OLED显示面板的亮度随灰度级别的变化曲线。
附图标记说明:
显示装置 1;
外界光/环境光 11;
OLED光 12;
阴极层 13;
有机发光材料层 14;
阳极层 15;
透射光 16;
透明阴极层 13’;
透明阳极层 15’;
透明显示区 31;
非透明显示区 32;
屏下采集单元 33;
像素 19;
补偿单元 34;
ISP桥 35;
补偿计算处理单元 36;
电压补偿电路 37。
具体实施方式
以下将参照附图更详细地描述本发明的各种实施例。在各个附图中,相同的元件采用相同或类似的附图标记来表示。为了清楚起见,附图中的各个部分没有按比例绘制。
下面结合附图和实施例,对本发明的具体实施方式作进一步详细描述。
图2示出了根据本发明实施例的显示装置1的侧视结构图。从图中可以看出,该显示装置1包括有机发光二极管OLED显示面板和屏下采集单元33。该屏下采集单元33可以是屏下摄像头,也可以是其它能够采集光的设备。有机发光二极管OLED显示面板具有第一OLED区域31和第二OLED区域32。所述第一OLED区域31和第二OLED区域32都含有像素19,像素19的位置不透光,所述第一OLED区域31除像素19外的位置透光。第一OLED区域31的像素密度低于第二OLED区域32的像素密度。屏下采集单元33设置在所述第一OLED区域的下面,用于采集射入第一OLED区域的光。
从图2中可以看出,本发明实施例中,所述第一OLED区域31除像素19外的位置透光,这样保证了屏下采集单元33能够摄像。同时,第一OLED区域31又是有像素的,像素的位置可以用来显示。而且,由于像素的存在,屏下采集单元33采集的光就能够反映OLED显示面板的老化,从而可以利用所述屏下采集单元33采集的光中得到的一些参数,对所述OLED显示面 板进行老化补偿。
图3A-B示出了本发明实施例带有屏下采集单元33的显示装置外观图。从中可以看出,屏下采集单元33在第一OLED区域31的下面隐约可见。由于第一OLED区域31的像素密度低于第二OLED区域32的像素密度,因此,第一OLED区域31总体比第二OLED区域32透明,能够透光,但由于有像素的存在,又不是完全透光。
图4A-C示出了根据本发明实施例三种不同像素排布的OLED显示面板俯视图。在这些图中,空心菱形代表红色像素,中间带点的空心菱形代表绿色像素,中间带+的空心菱形代表蓝色像素。从这些图看出,尽管红、绿、蓝色像素的排布方式不同,但无论哪种排布,第一OLED区域31的像素密度都低于第二OLED区域32的像素密度,
图5A-B示出了根据本发明实施例的显示装置的结构图。图5A从OLED显示面板的侧面示出了第一OLED区域31和第二OLED区域32。图5B从OLED显示面板的上面示出了第一OLED区域31和第二OLED区域32。
在图5A-B中,补偿单元34利用所述屏下采集单元33采集的光,对所述OLED显示面板的老化补偿。补偿单元34包括图像信号处理(Image Signal Process,ISP)桥35、补偿计算处理单元36。
光亮度提取单元35连接到屏下采集单元33,从屏下采集单元33采集的光中采集光亮度。该光亮度提取单元35可以是一个ISP桥,也可以是其它能够获取光的亮度的电路或单元。补偿计算处理单元36连接到所述光亮度提取单元35。
补偿计算处理单元36基于所述第一OLED区域的损耗参数,确定所述第一OLED区域的衰减比。这里的损耗参数可以包括损耗时间和损耗强度,但也可以是其它损耗参数。图6A示出了在不同的损耗强度下OLED显示面板或OLED像素的衰减比虽损耗时间变化的曲线。在图6A中,损耗强度用电流密度来衡量,单位为安培/平方米,时间以小时为单位。基于OLED显示面板的损耗强度,可以在图6A中找到相应曲线,进而就可以根据损耗曲线在曲线上找出对应的衰减比。
补偿计算处理单元36还基于所述第一OLED区域的灰度级别,确定所述第一OLED区域的透光亮度。图6B示出了透光亮度随灰度级别变化的曲线。因此,根据第一OLED区域的灰度级别,在曲线上可以找到对应的透光亮度。这个透光亮度是在没有任何损耗时OLED区域能够透射的光亮度。
OLED区域光亮度基准值是指在OLED区域中完全没有老化时透过的光亮度。在没有老化的情况下,只是OLED区域的材质没有变成另外一种物质,但由于磨损等原因,其透光也是有损耗的。OLED区域当前的光亮度基准值应该是未损耗时的透光亮度除以衰减比(即由于使用 磨损等原因造成透光亮度下降的比率),即,用确定的透光亮度除以确定的衰减比,得到第一OLED区域光亮度基准值。
光亮度提取单元35输出的是第一OLED区域透射的实际光亮度值,用其除以获取的第一OLED区域光亮度基准值,得到的比值叫做第一比值。该第一比值是第一OLED区域透射的实际光亮度值与基准值的比,可以从中看出第一OLED区域透射的实际光亮度值与基准值偏离的百分比。基于该比值,可以得到透射的实际光亮度值与基准值偏差的量,通过使对第一OLED区域的供电电压偏移一个偏移量,能够使透射的实际光亮度值与基准值偏差趋于一致,因此,可以基于所述第一比值,确定对第一OLED区域进行老化补偿的第一参数。在一个实施例中,所述第一参数可以是第一电源偏移量,但也可以是其它用于对第一OLED区域的供电电压进行调节的参数。然后,用此第一参数可以对第一OLED区域的供电电压进行调节。
用此第一参数可以对第一OLED区域的供电电压进行调节可以通过在补偿单元34中设置一个电源补偿电路37来进行,如图5A-B所示。电源补偿电路37连接到所述补偿计算处理单元36,按照确定的第一参数,调整第一OLED区域的供电电压。
另外,也可以省略图5A-B中的电压补偿电路37。这样,按照确定的第一参数,调整第一OLED区域的供电电压的功能,由补偿计算处理单元36完成。
经过上述补偿,仅仅是补偿了低像素密度区域,即第一OLED区域的老化。为了补偿高像素密度区域,即第二OLED区域的老化,在一个实施例中,补偿计算处理单元36还可以参照如图6A所示的曲线,基于所述第二OLED区域的损耗参数,确定所述第二OLED区域的衰减比。在一个实施例中,可以基于所述第二OLED区域的损耗时间、损耗强度,确定所述第二OLED区域的衰减比。另外,可以参照如图6B所示的曲线,基于所述第二OLED区域的灰度级别,确定所述第二OLED区域的透光亮度,这个透光亮度是第二OLED区域在未损耗时的透光亮度基准值。当使用了一段时间后,由于损耗,这个透光亮度基准值要降低,用确定的透光亮度除以确定的衰减比,得到第二OLED区域光亮度基准值,即经过了一段时间损耗当前该区域的光亮度基准值。
然后,补偿计算处理单元36确定光亮度提取单元35输出的光亮度与获取的第二OLED区域光亮度基准值的比值,并用该比值除以第二OLED区域与第一OLED区域的像素密度比,得到第二比值。该第二OLED区域光亮度基准值是第二OLED区域完全没有老化时应透光的光亮度,因此这个第二比值是第二OLED区域实际透过的光亮度与基准透过的光亮度之间的比值,它反映了第二OLED区域的老化程度。类似于基于第一比值确定对第一OLED区域进行老化补偿的第一参数,在这里也可以基于所述第二比值,确定对第二OLED区域进行老化补偿的第二参数。这里的第二参数可以是第二电源偏移量,但也可以是其它用于对第二OLED区域进行老 化补偿的参数。
与按照确定的第一参数,调整第一OLED区域的供电电压类似,按照确定的第二参数,调整第二OLED区域的供电电压,既可以由图5A-B中的电压补偿电路37完成,也可以由补偿计算处理单元36完成,从而将电压补偿电路37省略。
另外,在一个实施例中,补偿单元34不但能对OLED显示面板的老化进行补偿,还能对色温进行校正。
在进行色温校正时,光亮度提取单元35还从采集的光亮度中提取红色光亮度值、绿色光亮度值、蓝色光亮度值。
补偿计算处理单元36获取第一OLED区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值。红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值分别是指在OLED区域完全没有老化的情况下其应透光的红色光的光亮度值、绿色光的光亮度值、蓝色光的光亮度值。具体做法可以是:基于第一OLED区域的损耗参数,确定所述第一OLED区域的衰减比,其中,具体地,可以基于第一OLED区域的损耗时间、损耗强度,确定所述第一OLED区域的衰减比;然后,基于所述第一OLED区域的灰度级别,确定所述第一OLED区域透光的红色光亮度值、绿色光亮度值、蓝色光亮度值。这些光亮度是第一OLED区域在没有损耗时透光的红色光亮度值、绿色光亮度值、蓝色光亮度值的基准值。一旦使用,就要用这些透光亮度除以确定的衰减比,得到经过了损耗后当前的红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值。
然后,补偿计算处理单元36将提取的红色光亮度值、绿色光亮度值、蓝色光亮度值与获取的第一OLED区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值进行比较,前者是实际得到的红色光亮度值、绿色光亮度值、蓝色光亮度值,后者是当前第一OLED区域不考虑老化时应有的红色光亮度值、绿色光亮度值、蓝色光亮度值,通过两者差值的确定,就能确定出为了弥补这种差值,在第一OLED区域需要进行的红色光电压偏移量、绿色光电压偏移量、蓝色光电压偏移量,即对第一OLED区域进行色温校正的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量。
按照确定的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量,调整第一OLED区域的红色光供电电压、绿色光供电电压、蓝色光供电电压,可以由如图5A-B所示的电压补偿电路37执行,也可以将图5A-B中的电压补偿电路37省去,改为由补偿计算处理单元36执行。
如上所述,仅仅是校正了第一OLED区域的色温,为了校正第二OLED区域的色温,补偿计算处理单元36还获取第二OLED区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色 光亮度值的基准值。具体做法可以是:基于第二OLED区域的损耗参数,确定所述第二OLED区域的衰减比,其中,具体地,可以基于第二OLED区域的损耗时间、损耗强度,确定所述第二OLED区域的衰减比;然后,基于所述第二OLED区域的灰度级别,确定所述第二OLED区域透光的红色光亮度值、绿色光亮度值、蓝色光亮度值。这些光亮度是第二OLED区域在没有损耗时透光的红色光亮度值、绿色光亮度值、蓝色光亮度值的基准值。一旦使用,就要用这些透光亮度除以确定的衰减比,得到经过了损耗后当前的红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值。
然后,补偿计算处理单元36将获取的第二OLED区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值分别除以第二OLED区域与第一OLED区域的像素密度比,得到红色光亮度值的调整后基准值、绿色光亮度值的调整后基准值、蓝色光亮度值的调整后基准值。
然后,补偿计算处理单元36将提取的红色光亮度值、绿色光亮度值、蓝色光亮度值,与红色光亮度值的调整后基准值、绿色光亮度值的调整后基准值、蓝色光亮度值的调整后基准值进行比较。前者是从第一OLED区域提取的红色光亮度值、绿色光亮度值、蓝色光亮度值,后者虽然是根据第二OLED区域计算,但由于除以了第二OLED区域与第一OLED区域的像素密度比,得到的基准值变成第一OLED区域的透光的红色光亮度值、绿色光亮度值、蓝色光亮度值。从两者的差值中,可以反映出色温的影响。为了消除这一差值,对第二OLED区域的供电电压的红光电压、绿光电压、蓝色电压分别要给出一个偏移量,即对第二OLED区域进行色温校正的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量。
按照确定的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量,调整第二OLED区域的红色光供电电压、绿色光供电电压、蓝色光供电电压,可以由如图5A-B所示的电压补偿电路37执行,也可以将图5A-B中的电压补偿电路37省去,改为由补偿计算处理单元36执行。
虽然上述实施例针对第一OLED区域31和第二OLED区域32进行了描述,但本领域技术人员都知道,本发明也可以适合于其它非OLED的第一显示区域31和第二显示区域32。
依照本发明的实施例如上文所述,这些实施例并没有详尽叙述所有的细节,也不限制该发明仅为所述的具体实施例。显然,根据以上描述,可作很多的修改和变化。本说明书选取并具体描述这些实施例,是为了更好地解释本发明的原理和实际应用,从而使所属技术领域技术人员能很好地利用本发明以及在本发明基础上的修改使用。本发明仅受权利要求书及其全部范围和等效物的限制。

Claims (21)

  1. 一种显示装置,其特征在于,包括:
    显示面板,具有第一显示区域和第二显示区域,所述第一显示区域的像素密度低于第二显示区域的像素密度;
    采集单元,设置在所述第一显示区域的下面,用于采集射入第一显示区域的光;
    补偿单元,利用基于所述采集单元采集的光亮度得出的第一参数,对所述显示面板进行老化补偿。
  2. 根据权利要求1所述的显示装置,其特征在于,所述补偿单元包括:
    光亮度提取单元,连接到所述采集单元,从所述采集单元采集的光中提取光亮度;
    补偿计算处理单元,连接到所述光亮度提取单元。
  3. 根据权利要求2所述的显示装置,其特征在于,所述补偿计算处理单元,用于执行以下步骤:
    获取第一显示区域光亮度基准值;
    确定所述光亮度提取单元输出的光亮度与获取的第一显示区域光亮度基准值的第一比值;
    基于所述第一比值,确定对第一显示区域进行老化补偿的第一参数。
  4. 根据权利要求3所述的显示装置,其特征在于,所述获取第一显示区域光亮度基准值,包括:
    基于所述第一显示区域的损耗参数,确定所述第一显示区域的衰减比;
    基于所述第一显示区域的灰度级别,确定所述第一显示区域的透光亮度;
    用确定的透光亮度除以确定的衰减比,得到第一显示区域光亮度基准值。
  5. 根据权利要求3所述的显示装置,其特征在于,所述补偿单元还包括:
    电压补偿电路,连接到所述补偿计算处理单元,按照确定的第一参数,调整第一显示区域的供电电压。
  6. 根据权利要求3所述的显示装置,其特征在于,所述补偿计算处理单元还用于按照确定的第一参数,调整第一显示区域的供电电压。
  7. 根据权利要求3所述的显示装置,其特征在于,所述补偿计算处理单元还用于:
    获取第二显示区域光亮度基准值;
    确定所述光亮度提取单元输出的光亮度与获取的第二显示区域光亮度基准值的比值,并用该比值除以第二显示区域与第一显示区域的像素密度比,得到第二比值;
    基于所述第二比值,确定对第二显示区域进行老化补偿的第二参数。
  8. 根据权利要求7所述的显示装置,其特征在于,所述获取第二显示区域光亮度基准值, 包括:
    基于所述第二显示区域的损耗参数,确定所述第二显示区域的衰减比;
    基于所述第二显示区域的灰度级别,确定所述第二显示区域的透光亮度;
    用确定的透光亮度除以确定的衰减比,得到第二显示区域光亮度基准值。
  9. 根据权利要求7所述的显示装置,其特征在于,所述补偿单元还包括:
    电压补偿电路,连接到所述补偿计算处理单元,按照确定的第二参数,调整第二显示区域的供电电压。
  10. 根据权利要求7所述的显示装置,其特征在于,所述补偿计算处理单元还用于按照确定的第二参数,调整第二显示区域的供电电压。
  11. 根据权利要求3所述的显示装置,其特征在于,所述补偿单元还用于对所述显示面板进行色温校正,其中,
    所述光亮度提取单元还用于从提取的光亮度中提取红色光亮度值、绿色光亮度值、蓝色光亮度值;
    所述补偿计算处理单元还用于执行:
    获取第一显示区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值;
    将提取的红色光亮度值、绿色光亮度值、蓝色光亮度值与获取的第一显示区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值进行比较,从而确定对第一显示区域进行色温校正的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量。
  12. 根据权利要求11所述的显示装置,其特征在于,所述补偿单元还包括:
    电压补偿电路,连接到所述补偿计算处理单元,按照确定的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量,调整第一显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
  13. 根据权利要求11所述的显示装置,其特征在于,所述补偿计算处理单元还用于按照确定的第一红色光电压偏移量、第一绿色光电压偏移量、第一蓝色光电压偏移量,调整第一显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
  14. 根据权利要求11所述的显示装置,其特征在于,所述补偿计算处理单元还用于:
    获取第二显示区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值;
    将获取的第二显示区域红色光亮度值的基准值、绿色光亮度值的基准值、蓝色光亮度值的基准值分别除以第二显示区域与第一显示区域的像素密度比,得到红色光亮度值的调整后基准 值、绿色光亮度值的调整后基准值、蓝色光亮度值的调整后基准值;
    将提取的红色光亮度值、绿色光亮度值、蓝色光亮度值,与红色光亮度值的调整后基准值、绿色光亮度值的调整后基准值、蓝色光亮度值的调整后基准值进行比较,从而确定对第二显示区域进行色温校正的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量。
  15. 根据权利要求14所述的显示装置,其特征在于,所述补偿单元还包括:
    电压补偿电路,连接到所述补偿计算处理单元,按照确定的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量,调整第二显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
  16. 根据权利要求14所述的显示装置,其特征在于,所述补偿计算处理单元还用于按照确定的第二红色光电压偏移量、第二绿色光电压偏移量、第二蓝色光电压偏移量,调整第二显示区域的红色光供电电压、绿色光供电电压、蓝色光供电电压。
  17. 一种电子设备,其特征在于,所述电子设备包括根据权利要求1-16中的任一个所述的显示装置。
  18. 一种从手机、平板电脑、笔记本电脑、一体式电脑、智能手表和门禁装置组成的群组中选择的电子设备,其特征在于,所述电子设备包括根据权利要求1-16中的任一个所述的显示装置。
  19. 一种对显示面板进行老化补偿的方法,其特征在于,所述显示面板具有第一显示区域和第二显示区域,所述第一显示区域的像素密度低于第二显示区域的像素密度,所述第一显示区域的下面设置有采集单元,所述方法包括:
    利用所述采集单元采集光;
    利用从所述采集单元采集的光的光亮度得出的第一参数,对所述显示面板进行老化补偿。
  20. 根据权利要求19所述的方法,其特征在于,所述利用从所述采集单元采集的光的光亮度得出的第一参数,对所述显示面板进行老化补偿,包括:
    获取从所述采集单元采集的光的光亮度;
    获取第一显示区域光亮度基准值;
    确定获取的光亮度与获取的第一显示区域光亮度基准值的第一比值;
    基于所述第一比值,确定对第一显示区域进行老化补偿的第一参数。
  21. 根据权利要求19所述的方法,其特征在于,在所述获取从所述采集单元采集的光的光亮度之后,所述方法还包括:
    获取第二显示区域光亮度基准值;
    确定光亮度提取单元获取的光亮度与所述第二显示区域光亮度基准值的比值,并用该比值 除以第二显示区域与第一显示区域的像素密度比,得到第二比值;
    基于所述第二比值,确定对第二显示区域进行老化补偿的第二参数。
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