WO2024093314A1 - 显示装置及电子设备 - Google Patents

显示装置及电子设备 Download PDF

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Publication number
WO2024093314A1
WO2024093314A1 PCT/CN2023/104231 CN2023104231W WO2024093314A1 WO 2024093314 A1 WO2024093314 A1 WO 2024093314A1 CN 2023104231 W CN2023104231 W CN 2023104231W WO 2024093314 A1 WO2024093314 A1 WO 2024093314A1
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WO
WIPO (PCT)
Prior art keywords
backlight
color
display device
display
mode
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Application number
PCT/CN2023/104231
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English (en)
French (fr)
Inventor
孙浩
马长文
张洲
查国伟
Original Assignee
武汉华星光电技术有限公司
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Publication of WO2024093314A1 publication Critical patent/WO2024093314A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices

Definitions

  • the present application relates to the field of display technology, and in particular to a display device and an electronic device.
  • liquid crystal display devices are generally composed of a liquid crystal display panel and a backlight module.
  • the liquid crystal display panel is located on the light-emitting side of the backlight module.
  • the liquid crystal display panel includes a color film substrate and an array substrate opposite to the color film substrate.
  • the color film substrate includes a color film layer.
  • the white light emitted by the backlight module is converted into light of different colors after passing through the color film layer. In this way, the liquid crystal display device can display color images.
  • the brightness of the white light emitted by the backlight module will be greatly reduced after passing through the color filter layer, so it is necessary to increase the backlight brightness, which consumes more power.
  • a color sequence display device which uses a time mixing method (color mode) to display a color effect with a backlight of different colors in combination with a liquid crystal display panel, thereby removing the color filter layer and saving costs.
  • color mode time mixing method
  • the ambient temperature of the liquid crystal display device changes greatly, it will affect the response time of the liquid crystal, the clarity of the picture, etc., resulting in abnormal picture display.
  • the present application provides a display device and an electronic device, which can adjust the working mode of the display device according to the ambient temperature to avoid abnormal picture display, thereby improving the visual effect.
  • the present application provides a display device, the display device having a first operating mode and a second operating mode, the display device comprising a temperature sensor, a signal processor, and a display panel;
  • the temperature sensor is used to detect the ambient temperature; the signal processor is used to determine whether the ambient temperature is within a set temperature range; if the ambient temperature is within the set temperature range, the display device adopts the first working mode, and the display panel is a color display; if the ambient temperature exceeds the set temperature range, the display device adopts the second working mode, and the display panel is a monochrome display or a grayscale display.
  • the set temperature range is -10 degrees Celsius to 40 degrees Celsius.
  • the display device further includes a backlight module
  • the backlight driving mode of the backlight module is a color mode; in the second working mode, the backlight driving mode of the backlight module is a monochrome mode or a grayscale mode.
  • the backlight module in the color mode, includes multiple backlight on stages in one frame, each backlight on stage turns on a light source of one color, and different backlight on stages turn on light sources of different colors.
  • the backlight module in the monochrome display or the grayscale display, includes a backlight-on stage in one frame, and a light source of one color is turned on in the backlight-on stage.
  • the display device further includes an ambient color sensor, which is used to detect the ambient color; and the backlight color of the backlight module is different from the ambient color.
  • the backlight module includes multiple backlight on stages in one frame, each backlight on stage turns on a light source of one color, and different backlight on stages turn on light sources of different colors; the durations of at least two of the backlight on stages are different.
  • the backlight module includes a backlight-on phase within a frame, and the backlight module turns on a light source having a color different from the ambient color during the backlight-on phase.
  • the display device when the ambient temperature changes, switches between the first operating mode and the second operating mode in a blank period between adjacent frames.
  • the display device may further include an optical sensor, wherein the optical sensor is used to detect ambient brightness, and the display device is used to adjust the backlight brightness of the backlight module according to the ambient brightness.
  • the present application further provides an electronic device, the electronic device comprising a display device, the display device having a first operating mode and a second operating mode, the display device comprising a temperature sensor, a signal processor, and a display panel;
  • the temperature sensor is used to detect the ambient temperature; the signal processor is used to determine whether the ambient temperature is within a set temperature range; if the ambient temperature is within the set temperature range, the display device adopts the first working mode, and the display panel is a color display; if the ambient temperature exceeds the set temperature range, the display device adopts the second working mode, and the display panel is a monochrome display or a grayscale display.
  • the set temperature range is -10 degrees Celsius to 40 degrees Celsius.
  • the display device further includes a backlight module
  • the backlight driving mode of the backlight module is a color mode; in the second working mode, the backlight driving mode of the backlight module is a monochrome mode or a grayscale mode.
  • the backlight module in the color mode, includes multiple backlight on stages in one frame, each backlight on stage turns on a light source of one color, and different backlight on stages turn on light sources of different colors.
  • the backlight module in the monochrome display or the grayscale display, includes a backlight-on stage in one frame, and a light source of one color is turned on in the backlight-on stage.
  • the display device further includes an ambient color sensor, which is used to detect the ambient color; and the backlight color of the backlight module is different from the ambient color.
  • the backlight module includes multiple backlight on stages in one frame, each backlight on stage turns on a light source of one color, and different backlight on stages turn on light sources of different colors; the durations of at least two of the backlight on stages are different.
  • the backlight module includes a backlight-on phase within a frame, and the backlight module turns on a light source having a color different from the ambient color during the backlight-on phase.
  • the display device when the ambient temperature changes, switches between the first operating mode and the second operating mode in a blank period between adjacent frames.
  • the display device may further include an optical sensor, wherein the optical sensor is used to detect ambient brightness, and the display device is used to adjust the backlight brightness of the backlight module according to the ambient brightness.
  • the present application provides a display device and an electronic device.
  • the display device has a first working mode and a second working mode, and the display device includes a temperature sensor, a signal processor, and a display panel; wherein the temperature sensor is used to detect the ambient temperature; the signal processor is used to determine whether the ambient temperature is within a set temperature range; if the ambient temperature is within the set temperature range, the display device adopts the first working mode, and the display panel is a color display; if the ambient temperature exceeds the set temperature range, the display device adopts the second working mode, and the display panel is a monochrome display or a grayscale display.
  • the present application can adjust the working mode of the display device according to the ambient temperature of the display device, so that the display device can display in a suitable working mode, avoid abnormal screen display caused by changes in ambient temperature, and thus improve the visual effect.
  • FIG1 is a first structural schematic diagram of a display device provided by the present application.
  • FIG2 is a second structural schematic diagram of a display device provided by the present application.
  • FIG3 is a schematic diagram of a principle of a backlight driving mode provided by the present application.
  • FIG4 is a third structural schematic diagram of the display device provided by the present application.
  • FIG. 5 is a schematic diagram of a working process of the display device provided in the present application.
  • the present application provides a display device and an electronic device, which are described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments of the present application.
  • a display device 200 includes a temperature sensor 201 , a signal processor 202 and a display panel 203 .
  • the temperature sensor 201 is used to detect the ambient temperature.
  • the signal processor 202 is used to determine whether the ambient temperature is within a set temperature range. If the ambient temperature is within the set temperature range, the display device 200 adopts the first working mode, and the display panel 203 is a color display. If the ambient temperature exceeds the set temperature range, the display device 200 adopts the second working mode, and the display panel 203 is a monochrome display or a grayscale display.
  • ambient temperature refers to the temperature of the environment in which the display device 200 is located.
  • the signal processor 202 may be a control chip such as a microprocessor. When the temperature sensor 201 detects the ambient temperature, the signal processor 202 may determine whether the detected ambient temperature is within the set temperature range. For example, the signal processor 202 may compare the ambient temperature with the maximum value and the minimum value of the set temperature range respectively; if the ambient temperature is greater than or equal to the minimum value and less than or equal to the maximum value, the display device 200 adopts the first working mode; if the ambient temperature is less than the minimum value or greater than the maximum value, the display device 200 adopts the second working mode.
  • the embodiment of the present application obtains the ambient temperature through the temperature sensor 201 and compares the ambient temperature with the set temperature range.
  • the working mode of the display device 200 can be adjusted according to the ambient temperature, so that the display device 200 can display in a suitable working mode, avoiding abnormal screen display caused by changes in ambient temperature.
  • the set temperature range is -10 degrees Celsius to 40 degrees Celsius.
  • the set temperature range can be -10 degrees Celsius to 10 degrees Celsius, 10 degrees Celsius to 30 degrees Celsius, 30 degrees Celsius to 40 degrees Celsius, etc.; it can be set specifically according to the display characteristics of the display device 200, such as the characteristics of liquid crystal deflection.
  • the display device 200 further includes a backlight module 204.
  • the display panel 203 includes an array substrate 20, a color filter substrate 40, and a liquid crystal layer 30.
  • the array substrate 20 and the color filter substrate 40 are arranged opposite to each other, and the liquid crystal layer 30 is located between the array substrate 20 and the color filter substrate 40.
  • the backlight module 204 is located on a side of the array substrate 20 away from the color filter substrate 40. The backlight module 204 is used to provide the display panel 203 with the backlight required for displaying the picture.
  • the backlight module 204 has different backlight operating modes corresponding to different operating modes of the display device 200 .
  • the "backlight working mode” may include a backlight driving mode, such as a color mode, a monochrome mode, a grayscale mode, etc.
  • the backlight driving mode of the backlight module 204 is a color mode.
  • the backlight driving mode of the backlight module 204 is a monochrome mode or a grayscale mode.
  • the backlight working mode may also include a backlight color, such as blue, green, purple, red, etc.
  • the backlight working mode may also include a backlight brightness.
  • color mode means: using time mixing to display color effects with different colors of backlights and liquid crystal display panels.
  • the display panel 203 includes multiple frames of display images, each frame includes at least two subframes, and each subframe includes a data writing stage, a liquid crystal response stage, and a backlight activation stage. These three stages will be performed in sequence in each subframe.
  • the display panel 203 can display a color image, that is, the display panel 203 is a color display.
  • each frame including three subframes namely, a red subframe, a green subframe and a blue subframe
  • the backlight source is turned off, and the red data is written after a period of time after the liquid crystal responds, and the red backlight is turned on
  • the backlight source is turned off, and the green data is written after a period of time after the liquid crystal responds, and the green backlight is turned on
  • the blue data signal is written into the display panel 203
  • the backlight source is turned off, and the blue data is written after a period of time after the liquid crystal responds, and the blue backlight is turned on
  • the red subframe, the green subframe and the blue subframe are displayed in sequence, and the temporal color mixing effect of RGB can be achieved.
  • the "monochrome mode" means that one frame includes only one data writing phase, one liquid crystal response phase and one backlight on phase. In this backlight on phase, only one of the red backlight, green backlight, blue backlight, etc. is turned on.
  • the display panel 203 In the monochrome mode, the display panel 203 can only display a single color picture, that is, the display panel 203 is a monochrome display.
  • the display screen of the display panel 203 can also be displayed as a pure color screen, but due to the different backlight driving modes, the color display at this time is different from the monochrome display.
  • Grayscale mode means that one frame only includes a data writing phase, a liquid crystal response phase and a backlight on phase. In this backlight on phase, the backlight color is white, and then with the liquid crystal deflecting at different angles, the display panel 203 finally presents a grayscale image, that is, the display panel 203 is a grayscale display.
  • the response time of the liquid crystal will change with the change of temperature.
  • the response time of the liquid crystal will also change greatly. If the ambient temperature exceeds the set temperature range, the response time of the liquid crystal will be longer; in this case, if the backlight module 204 adopts the color mode, when the color data of the next subframe is about to be written, the liquid crystal of the previous subframe may not have been deflected to the correct angle, and the color presented through the liquid crystal will be affected, resulting in abnormal display of the picture; if the backlight module 204 adopts the monochrome mode or the grayscale mode, then one frame only includes one backlight on stage, which can have sufficient time to ensure that the liquid crystal may be deflected to the correct angle to avoid abnormal display of the picture.
  • the backlight module 204 includes a plurality of backlight-on stages in one frame, each backlight-on stage turns on a light source of one color, and different backlight-on stages turn on light sources of different colors.
  • the backlight module 204 includes a backlight-on phase in one frame, and turns on a light source of one color in the backlight-on phase.
  • the display device 200 further includes an ambient color sensor 205.
  • the ambient color sensor 205 is used to detect the ambient color.
  • the backlight color of the backlight module 204 is different from the ambient color.
  • the display device 200 may further include a central processor (not shown in the figure).
  • the signal processor 202 is further used to process the ambient color information detected by the ambient color sensor 205, such as analog-to-digital conversion, and then transmit the analog-to-digital converted data to the central controller.
  • the central controller controls the backlight module 204 according to the analog-to-digital converted data so that the backlight presents the corresponding color.
  • the environment in which the display device 200 is located is equivalent to the background of the display screen.
  • the color difference between the ambient color and the display screen color is small, it will affect the clarity of the display screen viewed by the human eye, making the visual effect worse.
  • the color difference between the display screen color and the ambient color can be increased to ensure that the human eye can see the correct information from the display screen.
  • the backlight color and the ambient color are contrasting colors, which can further increase the color difference between the display image and the ambient color and improve the visual effect.
  • the hue wheel is a circular hue spectrum, and the colors in the hue wheel are arranged in the order in which the spectrum appears in nature. Contrasting colors refer to two colors that are 120 to 180 degrees apart on the hue wheel. Because contrasting colors are far apart in the hue wheel, the color difference is large, and the visual effect is stronger and brighter.
  • the central processing unit can control the backlight to appear reddish, with a strong contrast between red and yellow; for another example, when driving in a tree-lined area, the color of the environment in which the display device 200 is located is greenish. At this time, through the data fed back by the signal processor 202, the central processing unit can control the backlight to appear purple, with a strong contrast between green and purple.
  • the adjustment method of the backlight color needs to be determined according to the backlight driving mode of the display device 200 .
  • each frame includes at least two subframes, and each subframe includes a backlight on stage.
  • the display device 200 may include three subframes in one frame, such as a red subframe, a green subframe, and a blue subframe. In some embodiments, the display device 200 may also include four subframes, such as a red subframe, a green subframe, a blue subframe, and a white subframe.
  • the durations of different subframes are equal, and the durations of different backlight on stages are equal, so the backlight color presented in temporal color mixing is white.
  • the backlight color can be adjusted according to the temporal color mixing principle, so that the backlight color is different from the ambient color.
  • the backlight needs to be controlled to be reddish; in this case, the duration of the backlight on phase corresponding to the red light source can be increased, so that the backlight color appears reddish.
  • the ambient color of the display device 200 is greenish, since a certain proportion of blue plus red equals purple, the duration of the backlight on phase corresponding to the blue light source and the red light source can be increased, so that the backlight color appears purple.
  • one frame when the backlight driving mode of the backlight module 204 is a monochrome mode or a grayscale mode, one frame only includes a data writing phase, a liquid crystal response phase and a backlight activation phase. That is, in this backlight activation phase, only one of the red backlight, green backlight, blue backlight, white backlight, etc. is activated.
  • a light source having a color different from the ambient color can be turned on.
  • the ambient color of the display device 200 is green
  • any one of the red light source, the blue light source, and the white light source can be turned on, but the green light source cannot be turned on, thereby increasing the color difference between the ambient color and the backlight color and improving the visual effect of the display screen.
  • the light source of the display device 200 may be directly turned on during the backlight on stage.
  • the display device 200 may further include an optical sensor.
  • the optical sensor is used to detect the ambient brightness, and the display device 200 may adjust the backlight brightness of the backlight module 204 according to the ambient brightness.
  • the ambient brightness is too dark and the display screen is too bright, not only will it make the user's eyes uncomfortable, but it will also increase power consumption; if the ambient brightness is too high and the display screen is too dark, the display screen viewed by the user will not be clear. Therefore, by adjusting the backlight brightness of the backlight module 204 according to the ambient brightness in the environmental information, the brightness of the display screen can be adjusted according to the ambient brightness, thereby ensuring the viewing comfort of the user and reducing the power consumption of the display device 200.
  • a preset brightness value may be set.
  • the backlight brightness is increased; when the ambient brightness is less than the preset brightness value, the backlight brightness is decreased.
  • the display device 200 when the ambient temperature changes, can switch between the first operating mode and the second operating mode in the blank period between adjacent frames.
  • the ambient temperature can be detected in real time.
  • the acquired ambient temperature information will also change accordingly, and it is necessary to adjust the working mode of the display device 200 to avoid abnormal display images.
  • the display device 200 can also adjust the backlight working mode of the backlight module 204 in the blank period between adjacent frames.
  • the embodiment of the present application can avoid affecting the switching of the display screen by adjusting the working mode of the display device 200 in the blank period between adjacent frames, while improving the utilization rate of the blank period.
  • one frame time can be divided into at least one data writing stage, a liquid crystal response stage, and a backlight turn-on stage, and the display panel 203 does not need additional actions in the liquid crystal response stage and the backlight turn-on stage. Therefore, the working mode of the display device 200 can also be adjusted in the liquid crystal response stage and the backlight turn-on stage to improve the utilization rate of the liquid crystal response stage and the backlight turn-on stage.
  • FIG. 5 in which the embodiment of the present application takes a specific embodiment as an example to explain the solution of the present application in detail.
  • the ambient temperature can be obtained through the temperature sensor first. Then, it is determined whether the ambient temperature is within the set temperature range; if the ambient temperature is within the set temperature range, the display device adopts the first working mode, and the color mode is selected as the backlight driving mode of the backlight module in the first working mode; if the ambient temperature exceeds the set temperature range, the display device adopts the second working mode, and the monochrome mode or grayscale mode is selected as the backlight driving mode of the backlight module in the second working mode. Then, the ambient color can be obtained through the ambient color sensor. After obtaining the ambient color, the backlight color is adjusted according to the backlight driving mode and the ambient color.
  • the backlight module is set to include at least two backlight on stages in one frame, each backlight on stage turns on a light source of one color, and different backlight on stages turn on light sources of different colors; the backlight color is adjusted by adjusting the duration ratio of multiple backlight on stages, so that the backlight color is different from the ambient color.
  • the backlight driving mode is a monochrome mode or grayscale
  • the backlight module is set to include a backlight on stage in one frame, and a light source of a color different from the ambient color is turned on in the backlight on stage. For details, please refer to the above embodiment, which will not be repeated here.
  • the present application also provides an electronic device, which includes the display device described above.
  • the electronic device can be a display product whose environment is easily changed, such as a car display, a portable display, etc., such as a HUD (Heads Up Display), a mobile phone, a tablet computer, a video player, etc., of course, the present application is not limited to this.
  • a display product whose environment is easily changed, such as a car display, a portable display, etc., such as a HUD (Heads Up Display), a mobile phone, a tablet computer, a video player, etc.
  • the electronic device provided in the present application includes a display device.
  • the display device has a first working mode and a second working mode, and the display device includes a temperature sensor, a signal processor and a display panel; wherein the temperature sensor is used to detect the ambient temperature; the signal processor is used to determine whether the ambient temperature is within a set temperature range; if the ambient temperature is within the set temperature range, the display device adopts the first working mode, and the display panel is a color display; if the ambient temperature exceeds the set temperature range, the display device adopts the second working mode, and the display panel is a monochrome display or a grayscale display.
  • the present application can adjust the working mode of the display device according to the ambient temperature of the display device, so that the display device can display in a suitable working mode. For example, when the electronic device is a vehicle-mounted display, the position of the vehicle-mounted display changes greatly, and the ambient temperature also changes accordingly.
  • the scheme of the embodiment of the present application can improve the visual effect of the vehicle-mounted display and improve the safety

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Abstract

本申请公开一种显示装置及电子设备。显示装置包括温度传感器、信号处理器以及显示面板；信号处理器用于判断环境温度是否在一设定温度范围内；若环境温度在设定温度范围内，显示装置采用第一工作模式，显示面板为彩色显示；若环境温度超出设定温度范围，显示装置采用第二工作模式，显示面板为单色显示或灰阶显示。

Description

显示装置及电子设备 技术领域
本申请涉及显示技术领域，具体涉及一种显示装置及电子设备。
 背景技术
目前，液晶显示装置一般由液晶显示面板和背光模组组成，液晶显示面板位于背光模组的出光侧，液晶显示面板包括彩膜基板以及与彩膜基板对置的阵列基板，彩膜基板包括彩膜层，背光模组所发出的白色光线通过彩膜层之后转变不同颜色的光，如此，液晶显示装置便可显示彩色画面。
然而，背光模组发出的白光通过彩膜层之后的亮度会大幅降低，故需要提高背光亮度，消耗更多的功耗。对此，出现了一种色彩序列显示装置，其采用时间混色的方式（彩色模式），以不同颜色的背光搭配液晶显示面板显示出彩色效果，从而去掉彩膜层、节省成本。但是，对于采用彩色方式的液晶显示面板而言，当液晶显示装置所处的环境温度变化较大时，会影响液晶的响应时间、画面的清晰度等，导致画面显示异常。
 发明概述
本申请提供一种显示装置及电子设备，可以根据环境温度调整显示装置的工作模式，避免画面显示异常，从而改善视觉效果。
本申请提供一种显示装置，所述显示装置具有第一工作模式和第二工作模式，所述显示装置包括温度传感器、信号处理器以及显示面板；
其中，所述温度传感器用于检测环境温度；所述信号处理器用于判断所述环境温度是否在一设定温度范围内；若所述环境温度在所述设定温度范围内，所述显示装置采用所述第一工作模式，所述显示面板为彩色显示；若所述环境温度超出所述设定温度范围，所述显示装置采用所述第二工作模式，所述显示面板为单色显示或灰阶显示。
可选的，在本申请一些实施例中，所述设定温度范围为-10摄氏度至40摄氏度。
可选的，在本申请一些实施例中，所述显示装置还包括背光模组；
在所述第一工作模式下，所述背光模组的背光驱动模式为彩色模式；在所述第二工作模式下，所述背光模组的背光驱动模式为单色模式或灰阶模式。
可选的，在本申请一些实施例中，在所述彩色模式下，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源。
可选的，在本申请一些实施例中，在所述单色显示或所述灰阶显示下，所述背光模组在一帧内包括一背光开启阶段，在所述背光开启阶段内打开一种颜色的光源。
可选的，在本申请一些实施例中，所述显示装置还包括环境色传感器，所述环境色传感器用于检测环境色；所述背光模组的背光颜色与所述环境色不相同。
可选的，在本申请一些实施例中，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源；至少两个所述背光开启阶段的时长不相同。
可选的，在本申请一些实施例中，所述背光模组在一帧内包括一背光开启阶段，所述背光模组在所述背光开启阶段内打开一种颜色与所述环境色不同的光源。
可选的，在本申请一些实施例中，当所述环境温度改变时，所述显示装置在相邻帧之间的空白周期内切换所述第一工作模式和所述第二工作模式。
可选的，在本申请一些实施例中，所述显示装置还可以包括光学传感器，所述光学传感器用于侦测环境亮度，所述显示装置用于根据所述环境亮度调整所述背光模组的背光亮度。
相应的，本申请还提供一种电子设备，所述电子设备包括显示装置，所述显示装置具有第一工作模式和第二工作模式，所述显示装置包括温度传感器、信号处理器以及显示面板；
其中，所述温度传感器用于检测环境温度；所述信号处理器用于判断所述环境温度是否在一设定温度范围内；若所述环境温度在所述设定温度范围内，所述显示装置采用所述第一工作模式，所述显示面板为彩色显示；若所述环境温度超出所述设定温度范围，所述显示装置采用所述第二工作模式，所述显示面板为单色显示或灰阶显示。
可选的，在本申请一些实施例中，所述设定温度范围为-10摄氏度至40摄氏度。
可选的，在本申请一些实施例中，所述显示装置还包括背光模组；
在所述第一工作模式下，所述背光模组的背光驱动模式为彩色模式；在所述第二工作模式下，所述背光模组的背光驱动模式为单色模式或灰阶模式。
可选的，在本申请一些实施例中，在所述彩色模式下，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源。
可选的，在本申请一些实施例中，在所述单色显示或所述灰阶显示下，所述背光模组在一帧内包括一背光开启阶段，在所述背光开启阶段内打开一种颜色的光源。
可选的，在本申请一些实施例中，所述显示装置还包括环境色传感器，所述环境色传感器用于检测环境色；所述背光模组的背光颜色与所述环境色不相同。
可选的，在本申请一些实施例中，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源；至少两个所述背光开启阶段的时长不相同。
可选的，在本申请一些实施例中，所述背光模组在一帧内包括一背光开启阶段，所述背光模组在所述背光开启阶段内打开一种颜色与所述环境色不同的光源。
可选的，在本申请一些实施例中，当所述环境温度改变时，所述显示装置在相邻帧之间的空白周期内切换所述第一工作模式和所述第二工作模式。
可选的，在本申请一些实施例中，所述显示装置还可以包括光学传感器，所述光学传感器用于侦测环境亮度，所述显示装置用于根据所述环境亮度调整所述背光模组的背光亮度。
有益效果
本申请提供一种显示装置及电子设备。显示装置具有第一工作模式和第二工作模式，显示装置包括温度传感器、信号处理器以及显示面板；其中，温度传感器用于检测环境温度；信号处理器用于判断环境温度是否在一设定温度范围内；若环境温度在设定温度范围内，显示装置采用第一工作模式，显示面板为彩色显示；若环境温度超出设定温度范围，显示装置采用第二工作模式，显示面板为单色显示或灰阶显示。本申请可以根据显示装置所处的环境温度调整显示装置的工作模式，使得显示装置能够在合适的工作模式下进行显示，避免环境温度变化导致的画面显示异常，从而改善视觉效果。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获取其他的附图。
图1是本申请提供的显示装置的第一结构示意图；
图2是本申请提供的显示装置的第二结构示意图；
图3是本申请提供的背光驱动模式的一种原理示意图；
图4是本申请提供的显示装置的第三结构示意图；
图5是本申请提供的显示装置的一种工作流程示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获取的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“第一”和“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”和“第二”等的特征可以明示或者隐含地包括一个或者更多个所述特征，因此不能理解为对本申请的限制。此外，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
本申请提供一种显示装置及电子设备，以下进行详细说明。需要说明的是，以下实施例的描述顺序不作为对本申请实施例优选顺序的限定。
请参阅图1，图1是本申请提供的显示装置的第一结构示意图。在本申请实施例中，显示装置200包括温度传感器201、信号处理器202以及显示面板203。
其中，温度传感器201用于检测环境温度。信号处理器202用于判断环境温度是否在一设定温度范围内。若环境温度在设定温度范围内，显示装置200采用第一工作模式，显示面板203为彩色显示。若环境温度超出设定温度范围，显示装置200采用所述第二工作模式，显示面板203为单色显示或灰阶显示。
其中，“环境温度”指的显示装置200所处的环境的温度。
其中，信号处理器202可以是微处理器等控制芯片。当温度传感器201检测到环境温度后，可通过信号处理器202判断检测到的环境温度是否在设定温度范围内。比如，信号处理器202可以将环境温度分别与设定温度范围的最大值和最小值进行比较；若环境温度大于或等于最小值且小于或等于最大值，则显示装置200采用第一工作模式；若环境温度小于最小值或大于最大值，则显示装置200采用第二工作模式。
本申请实施例通过温度传感器201获取环境温度，并将环境温度与设定温度范围进行比较，可以根据环境温度调整显示装置200的工作模式，使得显示装置200能够在合适的工作模式下进行显示，避免环境温度变化导致的画面显示异常。
在本申请实施例中，设定温度范围为-10摄氏度至40摄氏度。比如，设定温度范围可以为-10摄氏度至10摄氏度、10摄氏度至30摄氏度、30摄氏度至40摄氏度等；具体可根据显示装置200的显示特性，比如液晶偏转的特性进行设定。
在一些实施例中，请参阅图1和图2，显示装置200还包括背光模组204。具体的，显示面板203包括阵列基板20、彩膜基板40以及液晶层30。阵列基板20和彩膜基板40相对设置，液晶层30位于阵列基板20和彩膜基板40之间。背光模组204位于阵列基板20远离彩膜基板40的一侧。背光模组204用于为显示面板203提供显示画面所需的背光。
其中，对应于显示装置200的不同工作模式，背光模组204具有不同的背光工作模式。
其中，“背光工作模式”可以包括背光驱动模式，比如彩色模式、单色模式、灰阶模式等。具体的，若显示装置200采用第一工作模式，背光模组204的背光驱动模式为彩色模式。若显示装置200采用第二工作模式，背光模组204的背光驱动模式为单色模式或灰阶模式。背光工作模式也可以包括背光颜色，如蓝色、绿色、偏紫色、偏红色等。背光工作模式还可以包括背光亮度。
其中，“彩色模式”指的是：采用时间混色的方式，以不同颜色的背光搭配液晶显示面板显示出彩色效果。比如，如图3所示，显示面板203包括多帧显示画面，每一帧包括至少两个子帧，每一子帧都包含数据写入阶段，液晶响应阶段以及背光开启阶段，这三个阶段会在每一个子帧中依序进行。在彩色模式下，显示面板203才可以显示彩色画面，也即显示面板203为彩色显示。
具体的，本申请实施例以每一帧包括红色子帧、绿色子帧以及蓝色子帧三个子帧为例进行说明。红色数据信号写入显示面板203时背光源关闭，红色数据写入完毕且液晶响应一段时间后红色背光打开；绿色数据信号写入显示面板203时背光源关闭，绿色数据写入完毕且液晶响应一段时间后绿色背光打开；蓝色数据信号写入显示面板203时背光源关闭，蓝色数据写入完毕且液晶响应一段时间后蓝色背光打开；如此红色子帧，绿色子帧和蓝色子帧依次完成显示，可达成RGB的时间性混色效果。
“单色模式”指的是：一帧只包括一数据写入阶段，一液晶响应阶段以及一背光开启阶段。则在这一背光开启阶段，仅开启红色背光、绿色背光、蓝色背光等中的一种。在单色模式下，显示面板203只能显示单一颜色的画面，也即显示面板203为单色显示。
需要说明的是，在彩色模式下，显示面板203的显示画面也可以正好显示为纯色画面，但由于背光驱动模式不同，此时的彩色显示并不同于单色显示。
“灰阶模式”指的是：一帧只包括一数据写入阶段，一液晶响应阶段以及一背光开启阶段。则在这一背光开启阶段，背光颜色为白色，然后配合液晶偏转不同的角度，显示面板203最终呈现的显示画面为灰阶画面，也即显示面板203为灰阶显示。
可以理解的是，液晶的响应时间会随着温度的变化而变化。当环境温度变化较大时，液晶的响应时间变化也较大。若环境温度超出设定温度范围，液晶的响应时间会变长；此种情况下，若背光模组204采用彩色模式，则当下一子帧的颜色数据已经要开始写入时，上一子帧的液晶可能还未偏转到正确的角度，透过液晶呈现的颜色就会受到影响，进而导致画面显示异常；若背光模组204采用单色模式或灰阶模式，则一帧只包括一背光开启阶段，可以有充足的时间保证液晶可能偏转到正确的角度，避免画面显示异常。
因此，在彩色显示下，背光模组204在一帧内包括多个背光开启阶段，每一背光开启阶段打开一种颜色的光源，不同背光开启阶段打开不同颜色的光源。
在单色显示或灰阶显示下，背光模组204在一帧内包括一背光开启阶段，在背光开启阶段内打开一种颜色的光源。
在本申请一些实施例中，请参阅图4，显示装置200还包括环境色传感器205。环境色传感器205用于检测环境色。背光模组204的背光颜色与环境色不相同。
具体的，显示装置200还可以包括中央处理器（图中未示出）。当环境色传感器205检测到环境色后，信号处理器202还用于对环境色传感器205检测到的环境色信息进行处理，比如模数转换处理，然后将模数转换后的数据传输至中央控制器。中央控制器根据模数转换后的数据控制背光模组204，使背光呈现出相应的颜色。
可以理解的是，显示装置200所处的环境相当于显示屏幕的背景。当环境色与显示画面颜色色差较小时，会影响到人眼观看到的显示画面的清晰度，使得视觉效果变差。本申请实施例通过设置背光颜色与环境色不相同，可以增大显示画面颜色与环境色的色差，保证人眼从显示画面观看到正确的信息。
具体的，在一些实施例中，背光颜色与环境色互为对比色，可以进一步提高显示画面与环境色的色差，改善视觉效果。
其中，色相环是一种圆形排列的色相光谱，色相环中的色彩是按照光谱在自然中出现的顺序来排列的。对比色是指色相环上相距120度到180度之间的两种颜色。由于对比色在色相环内相距较远，色差较大，视觉效果更加强烈明亮。
比如，当在炎热地带（如沙漠）中行驶时，显示装置200所处的环境色偏黄色，此时通过信号处理器202反馈的数据，中央处理器可控制背光呈现出偏红的颜色，红黄对比强烈；又比如，当在绿树成荫的地带行驶时，显示装置200所处的环境色偏绿色，此时通过信号处理器202反馈的数据，中央处理器可控制背光呈现出偏紫的颜色，绿紫对比强烈。
需要说明的是，若同时考虑环境温度以及环境色对背光工作模式的影响，在根据环境色确定背光颜色时，需要根据显示装置200的背光驱动模式确定背光颜色的调整方式。
具体的，在一些实施例中，如前所述，当背光模组204的背光驱动模式为彩色模式时，实际上是采用时间混色的方式，以不同颜色的背光搭配液晶显示面板显示出彩色效果。每一帧包括至少两个子帧，每一子帧均包括一背光开启阶段。
其中，多个指的是两个或两个以上。在一些实施例中，显示装置200在一帧内可以包括三个子帧，如红色子帧、绿色子帧以及蓝色子帧。在一些实施例中，显示装置200也可以包括四个子帧，如红色子帧、绿色子帧、蓝色子帧以及白色子帧。
通常，在彩色模式中，不同子帧的时长相等，不同背光开启阶段的时长相等，则在时间混色上呈现出的背光颜色为白色。本申请实施例通过设置至少两个背光开启阶段的时长不相同，也即调整多个背光开启阶段的时长比值，根据时间混色原理可以调整背光颜色，使得背光颜色与环境色不相同。
比如，当显示装置200所处的环境色偏黄色时，需控制背光呈现出偏红的颜色；此时，可以提高红色光源对应的背光开启阶段的时长占比，从而使得背光颜色呈现出偏红色。又比如，当显示装置200所处的环境色偏绿色时，由于一定比例的蓝色加红色等于紫色，则可以提高蓝色光源和红色光源对应的背光开启阶段的时长占比，从而使得背光颜色呈现出偏紫色。
在另一些实施例中，如前所述，当背光模组204的背光驱动模式为单色模式或灰阶模式时，一帧只包括一数据写入阶段，一液晶响应阶段以及一背光开启阶段。也即，在这一背光开启阶段，仅开启红色背光、绿色背光、蓝色背光、白色背光等中的一种。
具体的，在背光开启阶段打开一种颜色与环境色不同的光源即可。比如，当显示装置200所处的环境色偏绿色时，可以打开红色光源、蓝色光源以及白色光源中的任一种，不能够打开绿色光源，由此提高环境色与背光颜色的色差，改善显示画面的视觉效果。
当然，若显示装置200的背光光源包括环境色的对比色，也可以在背光开启阶段直接开启颜色为对比色的光源。
在本申请一些实施例中，显示装置200还可以包括光学传感器。光学传感器用于侦测环境亮度，显示装置200可以根据环境亮度调整背光模组204的背光亮度。
可以理解的是，若环境亮度太暗，显示画面太亮时，不仅会让观看屏幕的用户眼睛不舒服，还会增加功耗；若环境亮度太大，显示画面太暗时，用户观看到的显示画面会不清晰。因此，根据环境信息中的环境亮度调整背光模组204的背光亮度，可以根据环境亮度调整显示画面的亮度，从而保证用户的观看舒适度以及减小显示装置200的功耗。
具体的，可以设定一亮度预设值，当环境亮度大于或等于亮度预设值时，增大背光亮度；当环境亮度小于亮度预设值时，减小背光亮度。
在本申请一些实施例中，当环境温度改变时，显示装置200可以在相邻帧之间的空白周期内切换第一工作模式和第二工作模式。当然，
可以理解的是，在显示装置200上电后，可以实时侦测环境温度。当显示装置200所处的环境发生改变时，获取的环境温度信息也会随之发生改变，则需要调整显示装置200的工作模式，避免显示画面异常。当然，当环境色等环境信息发生改变时，显示装置200也可以在相邻帧之间的空白周期内调整背光模组204的背光工作模式。
对此，本申请实施例通过在相邻帧之间的空白周期内调整显示装置200的工作模式，可以避免影响显示画面的切换，同时提高对空白周期的利用率。此外，一帧时间可分为至少一数据写入阶段、液晶响应阶段以及背光开启阶段，而显示面板203在液晶响应阶段和背光开启阶段不需要额外的动作，因此，也可以在液晶响应阶段和背光开启阶段调整显示装置200的工作模式，提高对液晶响应阶段以及背光开启阶段的利用率。
具体的，请参阅图5，本申请实施例以一具体实施例为例对本申请的方案进行详细说明。
当显示装置上电后，也即显示装置开始工作时，可以先通过温度传感器获取环境温度。然后判断环境温度是否在设定温度范围内；若环境温度在设定温度范围内，则显示装置采用第一工作模式，在第一工作模式下选择彩色模式作为背光模组的背光驱动模式；若环境温度超过设定温度范围，则显示装置采用第二工作模式，在第二工作模式下选择单色模式或者灰阶模式作为背光模组的背光驱动模式。接着可以通过环境色传感器获取环境色。当获取环境色后，根据背光驱动模式以及环境色调整背光颜色。
具体的，若背光驱动模式为彩色模式，则设定背光模组在一帧内包括至少两个背光开启阶段，每一背光开启阶段开启一种颜色的光源，不同背光开启阶段开启不同颜色的光源；通过调整多个背光开启阶段的时长比值调整背光颜色，使得背光颜色与环境色不相同。若背光驱动模式为单色模式或灰阶，则设定背光模组在一帧内包括一背光开启阶段，在背光开启阶段内打开一种颜色与环境色不同的光源。具体可参阅上述实施例，在此不再赘述。
相应的，本申请还提供一种电子设备，该电子设备包括以上所述的显示装置，具体可参阅上述内容，这里不再赘述。该电子设备可以是车载显示器、便携式显示器等所处环境易发生变化的显示产品，比如HUD（(Heads Up Display，平视显示器）、手机、平板电脑、视频播放器等，当然本申请并不限于此。
本申请提供的电子设备包括显示装置。显示装置具有第一工作模式和第二工作模式，显示装置包括温度传感器、信号处理器以及显示面板；其中，温度传感器用于检测环境温度；信号处理器用于判断环境温度是否在一设定温度范围内；若环境温度在设定温度范围内，显示装置采用第一工作模式，显示面板为彩色显示；若环境温度超出设定温度范围，显示装置采用第二工作模式，显示面板为单色显示或灰阶显示。本申请可以根据显示装置所处的环境温度调整显示装置的工作模式，使得显示装置能够在合适的工作模式下进行显示。比如，当电子设备为车载显示器时，车载显示器的位置变动较大，环境温度也随之变化，通过本申请实施例的方案可以改善车载显示器的视觉效果，提高驾驶过程中的安全性。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示装置，所述显示装置具有第一工作模式和第二工作模式，所述显示装置包括温度传感器、信号处理器以及显示面板；
    其中，所述温度传感器用于检测环境温度；所述信号处理器用于判断所述环境温度是否在一设定温度范围内；若所述环境温度在所述设定温度范围内，所述显示装置采用所述第一工作模式，所述显示面板为彩色显示；若所述环境温度超出所述设定温度范围，所述显示装置采用所述第二工作模式，所述显示面板为单色显示或灰阶显示。
  2. 根据权利要求1所述的显示装置，其中，所述设定温度范围为-10摄氏度至40摄氏度。
  3. 根据权利要求1所述的显示装置，其中，所述显示装置还包括背光模组；
    在所述第一工作模式下，所述背光模组的背光驱动模式为彩色模式；在所述第二工作模式下，所述背光模组的背光驱动模式为单色模式或灰阶模式。
  4. 根据权利要求3所述的显示装置，其中，在所述彩色模式下，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源。
  5. 根据权利要求3所述的显示装置，其中，在所述单色显示或所述灰阶显示下，所述背光模组在一帧内包括一背光开启阶段，在所述背光开启阶段内打开一种颜色的光源。
  6. 根据权利要求3所述的显示装置，其中，所述显示装置还包括环境色传感器，所述环境色传感器用于检测环境色；所述背光模组的背光颜色与所述环境色不相同。
  7. 根据权利要求6所述的显示装置，其中，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源；至少两个所述背光开启阶段的时长不相同。
  8. 根据权利要求6所述的显示装置，其中，所述背光模组在一帧内包括一背光开启阶段，所述背光模组在所述背光开启阶段内打开一种颜色与所述环境色不同的光源。
  9. 根据权利要求1所述的显示装置，其中，当所述环境温度改变时，所述显示装置在相邻帧之间的空白周期内切换所述第一工作模式和所述第二工作模式。
  10. 根据权利要求3所述的显示装置，其中，所述显示装置还可以包括光学传感器，所述光学传感器用于侦测环境亮度，所述显示装置用于根据所述环境亮度调整所述背光模组的背光亮度。
  11. 一种电子设备，所述电子设备包括显示装置，所述显示装置具有第一工作模式和第二工作模式，所述显示装置包括温度传感器、信号处理器以及显示面板；
    其中，所述温度传感器用于检测环境温度；所述信号处理器用于判断所述环境温度是否在一设定温度范围内；若所述环境温度在所述设定温度范围内，所述显示装置采用所述第一工作模式，所述显示面板为彩色显示；若所述环境温度超出所述设定温度范围，所述显示装置采用所述第二工作模式，所述显示面板为单色显示或灰阶显示。
  12. 根据权利要求11所述的电子设备，其中，所述设定温度范围为-10摄氏度至40摄氏度。
  13. 根据权利要求11所述的电子设备，其中，所述显示装置还包括背光模组；
    在所述第一工作模式下，所述背光模组的背光驱动模式为彩色模式；在所述第二工作模式下，所述背光模组的背光驱动模式为单色模式或灰阶模式。
  14. 根据权利要求13所述的电子设备，其中，在所述彩色模式下，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源。
  15. 根据权利要求13所述的电子设备，其中，在所述单色显示或所述灰阶显示下，所述背光模组在一帧内包括一背光开启阶段，在所述背光开启阶段内打开一种颜色的光源。
  16. 根据权利要求13所述的电子设备，其中，所述显示装置还包括环境色传感器，所述环境色传感器用于检测环境色；所述背光模组的背光颜色与所述环境色不相同。
  17. 根据权利要求16所述的电子设备，其中，所述背光模组在一帧内包括多个背光开启阶段，每一所述背光开启阶段打开一种颜色的光源，不同所述背光开启阶段打开不同颜色的光源；至少两个所述背光开启阶段的时长不相同。
  18. 根据权利要求16所述的电子设备，其中，所述背光模组在一帧内包括一背光开启阶段，所述背光模组在所述背光开启阶段内打开一种颜色与所述环境色不同的光源。
  19. 根据权利要求11所述的电子设备，其中，当所述环境温度改变时，所述显示装置在相邻帧之间的空白周期内切换所述第一工作模式和所述第二工作模式。
  20. 根据权利要求13所述的电子设备，其中，所述显示装置还可以包括光学传感器，所述光学传感器用于侦测环境亮度，所述显示装置用于根据所述环境亮度调整所述背光模组的背光亮度。
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