WO2015131589A1 - Colour cast compensation device and display device - Google Patents

Colour cast compensation device and display device Download PDF

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Publication number
WO2015131589A1
WO2015131589A1 PCT/CN2014/092801 CN2014092801W WO2015131589A1 WO 2015131589 A1 WO2015131589 A1 WO 2015131589A1 CN 2014092801 W CN2014092801 W CN 2014092801W WO 2015131589 A1 WO2015131589 A1 WO 2015131589A1
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Prior art keywords
viewing angle
color shift
information
compensation device
angle information
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PCT/CN2014/092801
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French (fr)
Chinese (zh)
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占红明
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京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Publication of WO2015131589A1 publication Critical patent/WO2015131589A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6083—Colour correction or control controlled by factors external to the apparatus
    • H04N1/6088—Colour correction or control controlled by factors external to the apparatus by viewing conditions, i.e. conditions at picture output

Definitions

  • Embodiments of the present invention relate to a color shift compensation device and a display device.
  • display technology uses a single display.
  • the display screen cannot be changed according to the change in the orientation of the viewer.
  • the viewing direction of the user is changed from the front to the oblique direction
  • the brightness, contrast, color gamut, and the like of the liquid crystal display device may change, resulting in a decrease in visual effect.
  • some high-end displays or special display places, such as medical, drawing, etc. have a higher requirement for the visual character bias (color difference of different viewing angles).
  • Embodiments of the present invention provide a color shift compensation device and a display device capable of reducing color shift caused by a change in viewing angle of a display panel.
  • At least one embodiment of the present invention provides a color shift compensation apparatus including: a viewing angle acquisition module configured to acquire viewing angle information when a user views an image in a display panel; and a data receiving processing module configured to view according to the viewing The angle information obtains the color shift amount information corresponding to the viewing angle information; and the color shift compensation module is configured to compensate the chromaticity point of the video signal according to the color shift amount information, so that the display panel is compensated according to the The subsequent video signal is displayed as an image.
  • the viewing angle acquisition module acquires the viewing angle information at preset time intervals.
  • the viewing angle acquisition module sends the viewing angle information to the data receiving processing module, so that the data receiving processing module obtains the viewing angle information according to the viewing angle information. Corresponding color shift amount information.
  • the user sends a signal to the viewing angle acquisition module by using a signal transmitting device, and the viewing angle acquisition module acquires the user according to the received signal. View angle information when viewing images in the display panel.
  • the viewing angle acquisition module includes: an image capturing unit configured to acquire face image information of the user; and an image detecting unit configured to obtain the user according to the face image information Viewing angle information.
  • the image detecting unit processes the face image information to obtain position information of the eyes of the user, and calculates the user's viewing according to the position information of the eyes. Angle information.
  • the camera unit is located in the middle of the display panel or in the middle of the display panel frame.
  • the camera unit is disposed in the middle of the upper frame of the display panel.
  • the viewing angle acquisition module includes one or more camera units.
  • the data receiving processing module includes a storage unit and an obtaining unit.
  • the storage unit is configured to store a correspondence between the viewing angle information and the color shift amount information; the acquiring unit is configured to read out corresponding color shift amount information from the storage unit according to the viewing angle information.
  • Another embodiment of the present invention also provides a display device comprising the color shift compensation device of any of the above.
  • FIG. 1 is a schematic diagram of a color shift compensation device according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of another color shift compensation device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention.
  • the color shift compensation device includes a viewing angle acquisition module 1, a data reception processing module 2, and a color shift compensation module 3.
  • the viewing angle acquisition module 1 is configured to acquire viewing angle information when the user views an image in the display panel;
  • the data receiving processing module 2 is configured to obtain color shift amount information corresponding to the viewing angle information according to the viewing angle information;
  • the color shift compensation module 3 is configured to compensate the chromaticity point of the video signal according to the color shift amount information, so that the display panel performs image display according to the compensated video signal.
  • the color shift compensation device acquires the corresponding color shift amount information according to the viewing angle information when the user views the image in the display panel, and compensates the chromaticity point of the video signal according to the obtained color shift amount information.
  • the display panel can automatically adjust the chromaticity under different viewing angles, effectively reducing the color shift caused by the change of the viewing angle.
  • the viewing angle acquisition module may acquire the viewing angle information at preset time intervals. For example, the viewing angle acquisition module may acquire viewing angle information once every 2 or 3 seconds.
  • the acquired information may be immediately sent to the data receiving processing module, or the acquired information may be stored, and then waited for the data receiving module to find the stored information.
  • the viewing angle information required.
  • the data receiving processing module can obtain the color shift amount information corresponding to the viewing angle information according to the obtained viewing angle information.
  • the viewing angle acquisition module acquires viewing angle information.
  • the user may send a signal to the viewing angle acquisition module through the signal transmitting device, and then the viewing angle acquisition module acquires corresponding viewing angle information according to the received signal.
  • a corresponding signal receiving device may be disposed in the viewing angle acquisition module, and the signal receiving device determines the viewing angle information of the user according to the received signal.
  • different sensors may be disposed in the viewing angle acquisition module, such as an infrared (IR) sensor or a radio frequency (RF) sensor. The user's viewing angle information is obtained through the sensor.
  • IR infrared
  • RF radio frequency
  • the viewing angle acquisition module may further acquire corresponding viewing angle information according to image information of the user.
  • FIG. 2 is a schematic diagram of another color shift compensation device provided by an embodiment of the present invention.
  • the color shift compensation device includes a viewing angle acquisition module, a data reception processing module 2, and a color shift compensation module 3.
  • the viewing angle acquisition module includes an image capturing unit 11 and an image detecting unit 12.
  • the camera unit 11 is configured to acquire face image information of the user; the image detecting unit 12 is configured to obtain viewing angle information of the user according to the face image information.
  • the imaging unit 11 first captures an image or video to the user.
  • the user may be photographed every 1 second or two seconds to obtain the user's face image information.
  • the image detecting unit 12 processes the acquired face image information by using a face detection algorithm to obtain the face position information of the user, thereby obtaining angle information of the user with respect to the display panel.
  • the image detecting unit may further process the acquired face image information by using a human eye detection algorithm to obtain position information of the eyes of the user, and then calculate the viewing angle information of the user according to the obtained position information of the two eyes. So that the viewing angle information is more accurate.
  • the camera unit 11 may be located in the middle of the display panel or in the middle of the display panel bezel.
  • FIG. 3 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention.
  • the color shift compensation device includes a viewing angle acquisition module, a data reception processing module 2, and a color shift compensation module 3.
  • the viewing angle acquisition module includes an imaging unit 11 and an image detection unit 12.
  • the imaging unit 11 is located, for example, in the middle of the upper frame 41 of the display panel 4.
  • the number of image pickup units may be one or more, and preferably, may be plural.
  • the plurality of image pickup units may be disposed at different positions, so that the face image information of the user can be acquired at different different angles of view.
  • the viewing angle acquisition module includes two image capturing units 111 and 112, and an image detecting unit 12.
  • Camera unit 111 And 112 are disposed on the upper bezel 41 of the display panel 4 in the horizontal direction.
  • the camera unit first captures an image or video to the user at the same time. For example, the user may be photographed every 1 second or two seconds to respectively acquire two face images of the user.
  • the image detecting unit 12 processes the acquired face image by a human eye detection algorithm to obtain image information of the human eye.
  • the image detecting unit processes the human eye image information to obtain spatial position information of the human eye, thereby obtaining angle information of the user with respect to the display panel.
  • the camera unit can also directly collect the human eye image of the user, and the image detecting unit processes the human eye image to obtain spatial position information of the human eye.
  • the viewing angle acquisition module includes a light source 5, an imaging unit 11, and an image detecting unit 12.
  • the light source 5 may be disposed on the bezel 41 of the display panel 4 or may be disposed at other locations.
  • the image pickup unit 11 is disposed on an upper frame of the display panel 4.
  • the light source emits a beam of light in the infrared or near-infrared spectrum that illuminates the face of the user.
  • the image pickup unit 11 can photograph the user, for example, every one second or two seconds to acquire face image information of the user.
  • the image detecting unit 12 detects the position of the human eye according to the brightening effect in the face image, and further processes the image information to obtain the viewing angle information of the user.
  • the image detecting unit 12 can also perform difference and image filtering on the image obtained when the light source illuminates the human face and the image obtained without the light source illuminating the human face to obtain the position information of the human eye.
  • the color shift compensation device includes a viewing angle acquisition module, a data reception processing module 2, and a color shift compensation module 3.
  • the viewing angle acquisition module includes a radio frequency transmitter 6, a radio frequency receiver 7, and a controller 8.
  • the radio frequency transmitter 6 and controller 8 can be included in a user handset.
  • the radio frequency receiver 7 may be disposed on the bezel 41 of the display panel 4 as shown in FIG. 6, but is not limited thereto.
  • the controller 8 includes a storage unit and a control unit.
  • the storage unit stores a correspondence between user location information and viewing angle information.
  • the control unit controls the radio frequency transmitter to emit a radio frequency signal corresponding to the viewing angle information according to the viewing angle information selected by the user.
  • the radio frequency receiver receives the radio frequency signal to determine viewing angle information of the user.
  • the user selects the corresponding viewing angle information stored in the storage unit of the controller 8 according to the location of the user. Then, the control unit of the controller 8 transmits a signal corresponding to the viewing angle information to the radio frequency transmitter 6.
  • the RF transmitter 6 receives the signal and transmits a radio frequency signal corresponding to the viewing angle information.
  • the radio frequency receiver 7 receives the radio frequency signal to determine the user's The angle information is viewed, and the viewing angle information is transmitted to the data reception processing module 2.
  • the radio frequency transmitter can be replaced by an infrared emitter
  • the radio frequency receiver can be replaced by an infrared receiver
  • the data receiving processing module may include a storage unit and an obtaining unit.
  • the storage unit is configured to store a correspondence between the viewing angle information and the color shift amount information; the acquiring unit is configured to read out corresponding color shift amount information from the storage unit according to the viewing angle information.
  • the correspondence between the viewing angle information and the color shift amount information may be set according to the position at which the viewing angle acquisition module acquires the information, and the correspondence relationship set by the viewing angle acquisition module for different positions is also different.
  • the color shift amount information in the storage unit may be prepared in advance according to the viewing angle characteristic of the display panel, and the color shift amount may be set for each of the plurality of color light components constituting the display light.
  • the data receiving processing module obtains the viewing angle information of the user, the corresponding color offset information is searched in the storage unit. Then, the data receiving processing module sends the obtained color shift amount information to the color shift compensation module.
  • the color shift compensation module compensates the chromaticity point of the video signal according to the color shift amount information.
  • the color cast compensation module can compensate for the chrominance points of the video signal using Accurate Color Capture (ACC) technology.
  • ACC Accurate Color Capture
  • the color shift compensation module sends the compensated video signal to the display panel, and the display panel displays according to the compensated video signal.
  • the display panel can automatically adjust the chromaticity under different viewing angles, effectively reducing the color shift caused by the change of the viewing angle.
  • the display device may be any display product or component such as a notebook computer display screen, an electronic paper, an organic light emitting diode display, a liquid crystal display, a liquid crystal television, a digital photo frame, a mobile phone, a tablet computer, or the like.
  • the corresponding color shift amount information is obtained according to the viewing angle information of the image viewed by the user in the display panel, and the chromaticity of the video signal is obtained according to the obtained color shift amount information.
  • the point is compensated so that the display panel can automatically adjust the chromaticity under different viewing angles, effectively reducing the color shift caused by the change of the viewing angle.

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Abstract

A colour cast compensation device and a display device. The colour cast compensation device comprises: a viewing angle acquisition module (1) configured to acquire viewing angle information when a user views an image in a display panel (4); a data receiving processing module (2) configured to obtain colour cast amount information corresponding to the viewing angle information according to the viewing angle information; and a colour cast compensation module (3) configured to compensate a chrominance point of a video signal according to the colour cast amount information, so that the image is displayed on the display panel (4) according to the compensated video signal. Therefore, the display panel (4) can automatically adjust the chrominance under the condition of different viewing angles, thereby effectively reducing colour cast generated because of the change of viewing angles.

Description

色偏补偿装置及显示装置Color shift compensation device and display device 技术领域Technical field
本发明的实施例涉及一种色偏补偿装置及显示装置。Embodiments of the present invention relate to a color shift compensation device and a display device.
背景技术Background technique
通常，显示技术采用单一的显示方式。在观看时，当观看者的方位发生变化时，显示画面无法根据观看者的方位的变化而进行变化。例如，当用户的观看方向从正前方改变为斜方向时，液晶显示装置的亮度、对比度以及色域等会发生变化，从而造成视觉效果降低。但是，一些高端显示或者特殊显示场所，例如医疗、画图等显示对视角色偏(不同视角的颜色差异)要求较高。Typically, display technology uses a single display. When viewing, when the orientation of the viewer changes, the display screen cannot be changed according to the change in the orientation of the viewer. For example, when the viewing direction of the user is changed from the front to the oblique direction, the brightness, contrast, color gamut, and the like of the liquid crystal display device may change, resulting in a decrease in visual effect. However, some high-end displays or special display places, such as medical, drawing, etc., have a higher requirement for the visual character bias (color difference of different viewing angles).
发明内容Summary of the invention
本发明的实施例提供了一种色偏补偿装置及显示装置，能够减小显示面板由于视角变化而造成的色偏。Embodiments of the present invention provide a color shift compensation device and a display device capable of reducing color shift caused by a change in viewing angle of a display panel.
本发明的至少一个实施例提供了一种色偏补偿装置，其包括：观看角度获取模块，配置成获取用户观看显示面板中图像时的观看角度信息；数据接收处理模块，配置成根据所述观看角度信息获得与所述观看角度信息对应的色偏量信息；以及色偏补偿模块，配置成根据所述色偏量信息对视频信号的色度点进行补偿，以便所述显示面板根据所述补偿后的视频信号进行图像显示。At least one embodiment of the present invention provides a color shift compensation apparatus including: a viewing angle acquisition module configured to acquire viewing angle information when a user views an image in a display panel; and a data receiving processing module configured to view according to the viewing The angle information obtains the color shift amount information corresponding to the viewing angle information; and the color shift compensation module is configured to compensate the chromaticity point of the video signal according to the color shift amount information, so that the display panel is compensated according to the The subsequent video signal is displayed as an image.
在本发明的一个实施例中，所述观看角度获取模块以预设的时间间隔获取所述观看角度信息。In an embodiment of the invention, the viewing angle acquisition module acquires the viewing angle information at preset time intervals.
在本发明的一个实施例中，所述观看角度获取模块将所述观看角度信息发送至所述数据接收处理模块，以便所述数据接收处理模块根据所述观看角度信息获得与所述观看角度信息对应的色偏量信息。In an embodiment of the present invention, the viewing angle acquisition module sends the viewing angle information to the data receiving processing module, so that the data receiving processing module obtains the viewing angle information according to the viewing angle information. Corresponding color shift amount information.
在本发明的一个实施例中，所述用户通过信号发射装置向所述观看角度获取模块发送信号，所述观看角度获取模块根据接收到的信号获取所述用户 观看显示面板中图像时的观看角度信息。In an embodiment of the present invention, the user sends a signal to the viewing angle acquisition module by using a signal transmitting device, and the viewing angle acquisition module acquires the user according to the received signal. View angle information when viewing images in the display panel.
在本发明的一个实施例中，所述观看角度获取模块包括：摄像单元，配置成获取所述用户的人脸图像信息；以及图像检测单元，配置成根据所述人脸图像信息得到所述用户的观看角度信息。In an embodiment of the present invention, the viewing angle acquisition module includes: an image capturing unit configured to acquire face image information of the user; and an image detecting unit configured to obtain the user according to the face image information Viewing angle information.
在本发明的一个实施例中，所述图像检测单元对所述人脸图像信息进行处理，以得到所述用户的双眼的位置信息，并根据所述双眼的位置信息计算得到所述用户的观看角度信息。In an embodiment of the present invention, the image detecting unit processes the face image information to obtain position information of the eyes of the user, and calculates the user's viewing according to the position information of the eyes. Angle information.
在本发明的一个实施例中，所述摄像单元位于所述显示面板的中间或者所述显示面板边框的中间。In an embodiment of the invention, the camera unit is located in the middle of the display panel or in the middle of the display panel frame.
在本发明的一个实施例中，所述摄像单元设置在所述显示面板上边框的中间。In an embodiment of the invention, the camera unit is disposed in the middle of the upper frame of the display panel.
在本发明的一个实施例中，所述观看角度获取模块包括一个或多个摄像单元。In one embodiment of the invention, the viewing angle acquisition module includes one or more camera units.
在本发明的一个实施例中，所述数据接收处理模块包括存储单元和获取单元。所述存储单元配置成存储所述观看角度信息与所述色偏量信息的对应关系；所述获取单元配置成根据所述观看角度信息从所述存储单元读出对应的色偏量信息。In an embodiment of the invention, the data receiving processing module includes a storage unit and an obtaining unit. The storage unit is configured to store a correspondence between the viewing angle information and the color shift amount information; the acquiring unit is configured to read out corresponding color shift amount information from the storage unit according to the viewing angle information.
本发明的另一个实施例还提供了一种显示装置，包括上述任意一种的色偏补偿装置。Another embodiment of the present invention also provides a display device comprising the color shift compensation device of any of the above.
附图说明DRAWINGS
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below. It is obvious that the drawings in the following description relate only to some embodiments of the present invention, and are not intended to limit the present invention. .
图1是本发明的实施方式提供的一种色偏补偿装置的示意图；1 is a schematic diagram of a color shift compensation device according to an embodiment of the present invention;
图2是本发明的实施方式提供的另一种色偏补偿装置的示意图；2 is a schematic diagram of another color shift compensation device according to an embodiment of the present invention;
图3是本发明的实施方式提供的又一种色偏补偿装置的示意图；3 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention;
图4为本发明的实施例提供的又一种色偏补偿装置的示意图；4 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention;
图5为本发明的实施例提供的又一种色偏补偿装置的示意图；以及FIG. 5 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention;
图6为本发明的实施例提供的又一种色偏补偿装置的示意图。 FIG. 6 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions of the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without departing from the scope of the invention are within the scope of the invention.
发明人注意到，一些高端显示或者特殊显示场所，例如医疗、画图等显示对视角色偏(不同视角的颜色差异)要求较高，因此需要对普通显示面板的视角色偏进行改善。The inventor has noticed that some high-end display or special display places, such as medical, drawing, and the like, have high requirements on the visual character bias (color difference of different viewing angles), and therefore it is necessary to improve the visual role bias of the ordinary display panel.
图1是本发明的一个实施方式提供的一种色偏补偿装置的示意图。该色偏补偿装置包括：观看角度获取模块1、数据接收处理模块2和色偏补偿模块3。1 is a schematic diagram of a color shift compensation device according to an embodiment of the present invention. The color shift compensation device includes a viewing angle acquisition module 1, a data reception processing module 2, and a color shift compensation module 3.
该观看角度获取模块1配置成获取用户观看显示面板中图像时的观看角度信息；该数据接收处理模块2配置成根据所述观看角度信息获得与所述观看角度信息对应的色偏量信息；该色偏补偿模块3配置成根据所述色偏量信息对视频信号的色度点进行补偿，以便所述显示面板根据所述补偿后的视频信号进行图像显示。The viewing angle acquisition module 1 is configured to acquire viewing angle information when the user views an image in the display panel; the data receiving processing module 2 is configured to obtain color shift amount information corresponding to the viewing angle information according to the viewing angle information; The color shift compensation module 3 is configured to compensate the chromaticity point of the video signal according to the color shift amount information, so that the display panel performs image display according to the compensated video signal.
本发明的实施方式提供的色偏补偿装置，根据用户观看显示面板中图像时的观看角度信息获取对应的色偏量信息，并根据得到的色偏量信息对视频信号的色度点进行补偿，使得显示面板能够在不同视角的情况下自动调节色度，有效减小由于视角变化而产生的色偏。The color shift compensation device provided by the embodiment of the present invention acquires the corresponding color shift amount information according to the viewing angle information when the user views the image in the display panel, and compensates the chromaticity point of the video signal according to the obtained color shift amount information. The display panel can automatically adjust the chromaticity under different viewing angles, effectively reducing the color shift caused by the change of the viewing angle.
在本发明的一个实施方式中，观看角度获取模块可以以预设的时间间隔获取所述观看角度信息。例如，观看角度获取模块可以每隔2秒或者3秒获取一次观看角度信息。In an embodiment of the present invention, the viewing angle acquisition module may acquire the viewing angle information at preset time intervals. For example, the viewing angle acquisition module may acquire viewing angle information once every 2 or 3 seconds.
例如，在观看角度获取模块获取到观看角度信息后，可以立即将获取到的信息发送至数据接收处理模块，也可以将获取到的信息进行存储，而后等待数据接收模块从存储的信息中查找得到所需的观看角度信息。这样，数据接收处理模块能够根据得到的观看角度信息获得与观看角度信息对应的色偏量信息。For example, after the viewing angle acquisition module obtains the viewing angle information, the acquired information may be immediately sent to the data receiving processing module, or the acquired information may be stored, and then waited for the data receiving module to find the stored information. The viewing angle information required. In this way, the data receiving processing module can obtain the color shift amount information corresponding to the viewing angle information according to the obtained viewing angle information.
在本发明的至少一个实施方式中，观看角度获取模块获取观看角度信息 的方式可以有多种。例如，用户可以通过信号发射装置向观看角度获取模块发送信号，而后观看角度获取模块根据接收到的信号获取相应的观看角度信息。例如，可以在观看角度获取模块中设置相应的信号接收装置，信号接收装置根据接收的信号确定用户的观看角度信息。此外，还可以在观看角度获取模块中设置不同的传感器，例如可以为红外(IR)传感器、射频(RF)传感器。通过传感器来获取用户的观看角度信息。In at least one embodiment of the present invention, the viewing angle acquisition module acquires viewing angle information. There are many ways to do this. For example, the user may send a signal to the viewing angle acquisition module through the signal transmitting device, and then the viewing angle acquisition module acquires corresponding viewing angle information according to the received signal. For example, a corresponding signal receiving device may be disposed in the viewing angle acquisition module, and the signal receiving device determines the viewing angle information of the user according to the received signal. In addition, different sensors may be disposed in the viewing angle acquisition module, such as an infrared (IR) sensor or a radio frequency (RF) sensor. The user's viewing angle information is obtained through the sensor.
例如，观看角度获取模块还可以根据用户的图像信息获取对应的观看角度信息。例如，图2是本发明的实施方式提供的另一种色偏补偿装置的示意图。如图2所示，该色偏补偿装置包括观看角度获取模块、数据接收处理模块2以及色偏补偿模块3，所述观看角度获取模块包括：摄像单元11和图像检测单元12。For example, the viewing angle acquisition module may further acquire corresponding viewing angle information according to image information of the user. For example, FIG. 2 is a schematic diagram of another color shift compensation device provided by an embodiment of the present invention. As shown in FIG. 2, the color shift compensation device includes a viewing angle acquisition module, a data reception processing module 2, and a color shift compensation module 3. The viewing angle acquisition module includes an image capturing unit 11 and an image detecting unit 12.
该摄像单元11配置成获取所述用户的人脸图像信息；该图像检测单元12配置成根据所述人脸图像信息得到所述用户的观看角度信息。The camera unit 11 is configured to acquire face image information of the user; the image detecting unit 12 is configured to obtain viewing angle information of the user according to the face image information.
例如，摄像单元11首先对用户拍摄图像或视频。例如，可以每隔1秒或者两秒对用户进行拍摄，以获取用户的人脸图像信息。然后，图像检测单元12通过人脸检测算法对获取到的人脸图像信息进行处理，得到用户的人脸位置信息，进而获得用户相对于显示面板的角度信息。例如，图像检测单元还可以采用人眼检测算法对获取到的人脸图像信息进行处理，以得到所述用户的双眼13的位置信息，然后根据得到的双眼的位置信息计算得到用户的观看角度信息，从而使得到的观看角度信息更加精确。For example, the imaging unit 11 first captures an image or video to the user. For example, the user may be photographed every 1 second or two seconds to obtain the user's face image information. Then, the image detecting unit 12 processes the acquired face image information by using a face detection algorithm to obtain the face position information of the user, thereby obtaining angle information of the user with respect to the display panel. For example, the image detecting unit may further process the acquired face image information by using a human eye detection algorithm to obtain position information of the eyes of the user, and then calculate the viewing angle information of the user according to the obtained position information of the two eyes. So that the viewing angle information is more accurate.
例如，摄像单元11可以位于显示面板的中间或者显示面板边框的中间。For example, the camera unit 11 may be located in the middle of the display panel or in the middle of the display panel bezel.
图3是本发明的实施方式提供的又一种色偏补偿装置的示意图。该色偏补偿装置包括观看角度获取模块、数据接收处理模块2以及色偏补偿模块3。所述观看角度获取模块包括摄像单元11和图像检测单元12。摄像单元11例如位于显示面板4的上边框41中间。FIG. 3 is a schematic diagram of still another color shift compensation device according to an embodiment of the present invention. The color shift compensation device includes a viewing angle acquisition module, a data reception processing module 2, and a color shift compensation module 3. The viewing angle acquisition module includes an imaging unit 11 and an image detection unit 12. The imaging unit 11 is located, for example, in the middle of the upper frame 41 of the display panel 4.
在上述任一所述的实施方式提供的色偏补偿装置中，摄像单元的个数可以为一个或多个，优选地，可以为多个。例如，可以将该多个摄像单元设置在不同的位置，从而可以在各个不同视角获取用户的人脸图像信息。In the color shift compensation device provided in any of the above embodiments, the number of image pickup units may be one or more, and preferably, may be plural. For example, the plurality of image pickup units may be disposed at different positions, so that the face image information of the user can be acquired at different different angles of view.
在本发明的一个实施例提供的色偏补偿装置中，如图4所示，观看角度获取模块包含两个摄像单元111和112，以及图像检测单元12。摄像单元111 和112在水平方向上设置在显示面板4的上边框41上。所述摄像单元首先同时对用户拍摄图像或视频，例如，可以每隔1秒或者两秒对用户进行拍摄，以分别获取用户的两幅人脸图像。然后，图像检测单元12通过人眼检测算法对获取到的人脸图像进行处理，以获得人眼的图像信息。此后，图像检测单元对人眼图像信息进行处理，得到人眼的空间位置信息，进而获得用户相对于显示面板的角度信息。摄像单元还可直接采集用户的人眼图像，图像检测单元对人眼图像进行处理，以获得人眼的空间位置信息。In the color shift compensation device provided by one embodiment of the present invention, as shown in FIG. 4, the viewing angle acquisition module includes two image capturing units 111 and 112, and an image detecting unit 12. Camera unit 111 And 112 are disposed on the upper bezel 41 of the display panel 4 in the horizontal direction. The camera unit first captures an image or video to the user at the same time. For example, the user may be photographed every 1 second or two seconds to respectively acquire two face images of the user. Then, the image detecting unit 12 processes the acquired face image by a human eye detection algorithm to obtain image information of the human eye. Thereafter, the image detecting unit processes the human eye image information to obtain spatial position information of the human eye, thereby obtaining angle information of the user with respect to the display panel. The camera unit can also directly collect the human eye image of the user, and the image detecting unit processes the human eye image to obtain spatial position information of the human eye.
在本发明的一个实施例提供的色偏补偿装置中，如图5所示，观看角度获取模块包含光源5、摄像单元11、以及图像检测单元12。所述光源5可设置在显示面板4的边框41上，也可以设置在其它位置。所述摄像单元11设置在显示面板4的上边框。所述光源发射红外光谱或近红外光谱中的光束，所述光束照射到用户的人脸上。在所述光束照射在人脸上时，摄像单元11例如可以每隔1秒或者两秒对用户进行拍摄，以获取用户的人脸图像信息。图像检测单元12根据人脸图像中的亮瞳效应，检测到人眼位置，进而对图像信息进一步处理，得到用户的观看角度信息。图像检测单元12还可以对光源照射人脸情况下获得的图像与没有光源照射人脸情况下获得的图像进行差分以及图像滤波来得到人眼的位置信息。In the color shift compensation device provided by an embodiment of the present invention, as shown in FIG. 5, the viewing angle acquisition module includes a light source 5, an imaging unit 11, and an image detecting unit 12. The light source 5 may be disposed on the bezel 41 of the display panel 4 or may be disposed at other locations. The image pickup unit 11 is disposed on an upper frame of the display panel 4. The light source emits a beam of light in the infrared or near-infrared spectrum that illuminates the face of the user. When the light beam is irradiated on a person's face, the image pickup unit 11 can photograph the user, for example, every one second or two seconds to acquire face image information of the user. The image detecting unit 12 detects the position of the human eye according to the brightening effect in the face image, and further processes the image information to obtain the viewing angle information of the user. The image detecting unit 12 can also perform difference and image filtering on the image obtained when the light source illuminates the human face and the image obtained without the light source illuminating the human face to obtain the position information of the human eye.
在本发明的一个实施例提供的色偏补偿装置中，如图6所示，色偏补偿装置包括观看角度获取模块、数据接收处理模块2以及色偏补偿模块3。所述观看角度获取模块包括：射频发射器6、射频接收器7和控制器8。所述射频发射器6和控制器8可以包含在一种用户手持装置中。所述射频接收器7可设置在显示面板4的边框41上，如图6所示，但不限于此。控制器8包含存储单元和控制单元。所述存储单元存储用户位置信息与观看角度信息的对应关系。所述控制单元根据用户所选择的观看角度信息来控制射频发射器发出与观看角度信息对应的射频信号。所述射频接收器接收所述射频信号以确定用户的观看角度信息。In the color shift compensation device provided by an embodiment of the present invention, as shown in FIG. 6, the color shift compensation device includes a viewing angle acquisition module, a data reception processing module 2, and a color shift compensation module 3. The viewing angle acquisition module includes a radio frequency transmitter 6, a radio frequency receiver 7, and a controller 8. The radio frequency transmitter 6 and controller 8 can be included in a user handset. The radio frequency receiver 7 may be disposed on the bezel 41 of the display panel 4 as shown in FIG. 6, but is not limited thereto. The controller 8 includes a storage unit and a control unit. The storage unit stores a correspondence between user location information and viewing angle information. The control unit controls the radio frequency transmitter to emit a radio frequency signal corresponding to the viewing angle information according to the viewing angle information selected by the user. The radio frequency receiver receives the radio frequency signal to determine viewing angle information of the user.
如图6所示，用户根据自身所在位置来选择控制器8的存储单元中存储的相应观看角度信息。然后，控制器8的控制单元将与该观看角度信息对应的信号发送给射频发射器6。射频发射器6接收该信号并发射与观看角度信息对应的射频信号。然后，射频接收器7接收该射频信号，从而确定用户的 观看角度信息，并将该观看角度信息发送至数据接收处理模块2。As shown in FIG. 6, the user selects the corresponding viewing angle information stored in the storage unit of the controller 8 according to the location of the user. Then, the control unit of the controller 8 transmits a signal corresponding to the viewing angle information to the radio frequency transmitter 6. The RF transmitter 6 receives the signal and transmits a radio frequency signal corresponding to the viewing angle information. Then, the radio frequency receiver 7 receives the radio frequency signal to determine the user's The angle information is viewed, and the viewing angle information is transmitted to the data reception processing module 2.
例如，所述射频发射器可以由红外线发射器来代替，而射频接收器可以由红外线接收器来代替。For example, the radio frequency transmitter can be replaced by an infrared emitter, and the radio frequency receiver can be replaced by an infrared receiver.
在本发明的一个实施方式中，数据接收处理模块可以包括存储单元和获取单元。In an embodiment of the present invention, the data receiving processing module may include a storage unit and an obtaining unit.
该存储单元用于存储所述观看角度信息与所述色偏量信息的对应关系；该获取单元用于根据所述观看角度信息从所述存储单元读出对应的色偏量信息。在本发明的一个实施方式中，观看角度信息与色偏量信息的对应关系可以根据观看角度获取模块获取信息的位置而设定，针对不同位置的观看角度获取模块设定的对应关系也不同。The storage unit is configured to store a correspondence between the viewing angle information and the color shift amount information; the acquiring unit is configured to read out corresponding color shift amount information from the storage unit according to the viewing angle information. In an embodiment of the present invention, the correspondence between the viewing angle information and the color shift amount information may be set according to the position at which the viewing angle acquisition module acquires the information, and the correspondence relationship set by the viewing angle acquisition module for different positions is also different.
例如，存储单元中的色偏量信息可以根据显示面板的视角特性进行预先准备，且可以针对构成显示光的多个色光分量的每个设置色偏量。当数据接收处理模块得到用户的观看角度信息后，在存储单元中查找得到对应的色偏量信息。然后，数据接收处理模块将得到的色偏量信息发送至色偏补偿模块。色偏补偿模块根据色偏量信息对视频信号的色度点进行补偿。例如，色偏补偿模块可以采用精确显示色彩(Accurate Color Capture，ACC)技术对视频信号的色度点进行补偿。然后，色偏补偿模块将补偿后的视频信号发送至显示面板，该显示面板根据补偿后的视频信号进行显示。从而使得显示面板能够在不同视角的情况下自动调节色度，有效减小由于视角变化而产生的色偏。For example, the color shift amount information in the storage unit may be prepared in advance according to the viewing angle characteristic of the display panel, and the color shift amount may be set for each of the plurality of color light components constituting the display light. After the data receiving processing module obtains the viewing angle information of the user, the corresponding color offset information is searched in the storage unit. Then, the data receiving processing module sends the obtained color shift amount information to the color shift compensation module. The color shift compensation module compensates the chromaticity point of the video signal according to the color shift amount information. For example, the color cast compensation module can compensate for the chrominance points of the video signal using Accurate Color Capture (ACC) technology. Then, the color shift compensation module sends the compensated video signal to the display panel, and the display panel displays according to the compensated video signal. Thereby, the display panel can automatically adjust the chromaticity under different viewing angles, effectively reducing the color shift caused by the change of the viewing angle.
此外，本发明的另一个实施方式还提供了一种显示装置，其包括上述任一所述的色偏补偿装置。例如，该显示装置可以是笔记本电脑显示屏、电子纸、有机发光二级管显示器、液晶显示器、液晶电视、数码相框、手机、平板电脑等任何具有显示功能的产品或部件。Furthermore, another embodiment of the present invention provides a display device comprising the color shift compensation device of any of the above. For example, the display device may be any display product or component such as a notebook computer display screen, an electronic paper, an organic light emitting diode display, a liquid crystal display, a liquid crystal television, a digital photo frame, a mobile phone, a tablet computer, or the like.
在本发明的实施例提供的色偏补偿装置及显示装置中，根据用户观看显示面板中图像的观看角度信息获得对应的色偏量信息，并根据得到的色偏量信息对视频信号的色度点进行补偿，使得显示面板能够在不同视角的情况下自动调节色度，有效减小由于视角变化而产生的色偏。In the color shift compensation device and the display device provided by the embodiment of the present invention, the corresponding color shift amount information is obtained according to the viewing angle information of the image viewed by the user in the display panel, and the chromaticity of the video signal is obtained according to the obtained color shift amount information. The point is compensated so that the display panel can automatically adjust the chromaticity under different viewing angles, effectively reducing the color shift caused by the change of the viewing angle.
以上实施方式仅用于说明本发明，而并非对本发明的限制，有关技术领域的普通技术人员，在不脱离本发明的精神和范围的情况下，还可以做出各种变化和变型，因此所有等同的技术方案也属于本发明的范畴，本发明的专 利保护范围应由权利要求限定。The above embodiments are merely illustrative of the present invention and are not intended to be limiting of the invention, and various modifications and changes can be made without departing from the spirit and scope of the invention. Equivalent technical solutions are also within the scope of the invention, and the invention The scope of protection should be defined by the claims.
本申请要求于2014年3月6日递交的中国专利申请第201410080731.1号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。 The present application claims the priority of the Chinese Patent Application No. 201410080731.1 filed on March 6, 2014, the entire disclosure of which is hereby incorporated by reference.

Claims (11)

  1. 一种色偏补偿装置，包括：A color shift compensation device comprising:
    观看角度获取模块，配置成获取用户观看显示面板中图像时的观看角度信息；The viewing angle acquisition module is configured to acquire viewing angle information when the user views the image in the display panel;
    数据接收处理模块，配置成根据所述观看角度信息获得与所述观看角度信息对应的色偏量信息；以及a data receiving processing module configured to obtain color shift amount information corresponding to the viewing angle information according to the viewing angle information;
    色偏补偿模块，配置成根据所述色偏量信息对视频信号的色度点进行补偿，以便所述显示面板根据所述补偿后的视频信号进行图像显示。The color shift compensation module is configured to compensate the chromaticity point of the video signal according to the color shift amount information, so that the display panel performs image display according to the compensated video signal.
  2. 根据权利要求1所述的色偏补偿装置，其中，所述观看角度获取模块以预设的时间间隔获取所述观看角度信息。The color shift compensation apparatus according to claim 1, wherein the viewing angle acquisition module acquires the viewing angle information at a preset time interval.
  3. 根据权利要求1或2所述的色偏补偿装置，其中，所述观看角度获取模块将所述观看角度信息发送至所述数据接收处理模块，以便所述数据接收处理模块根据所述观看角度信息获得与所述观看角度信息对应的色偏量信息。The color shift compensation device according to claim 1 or 2, wherein the viewing angle acquisition module transmits the viewing angle information to the data reception processing module, so that the data reception processing module is based on the viewing angle information Color shift amount information corresponding to the viewing angle information is obtained.
  4. 根据权利要求1或3所述的色偏补偿装置，其中，所述用户通过信号发射装置向所述观看角度获取模块发送信号，所述观看角度获取模块根据接收到的信号获取所述用户观看显示面板中图像时的观看角度信息。The color shift compensation device according to claim 1 or 3, wherein the user transmits a signal to the viewing angle acquisition module through a signal transmitting device, and the viewing angle acquisition module acquires the user viewing display according to the received signal Viewing angle information for images in the panel.
  5. 根据权利要求1或4所述的色偏补偿装置，其中，所述观看角度获取模块包括：The color shift compensation device according to claim 1 or 4, wherein the viewing angle acquisition module comprises:
    摄像单元，配置成获取所述用户的人脸图像信息；以及a camera unit configured to acquire face image information of the user;
    图像检测单元，配置成根据所述人脸图像信息得到所述用户的观看角度信息。The image detecting unit is configured to obtain viewing angle information of the user according to the face image information.
  6. 根据权利要求5所述的色偏补偿装置，其中，所述图像检测单元对所述人脸图像信息进行处理，以得到所述用户的双眼的位置信息，并根据所述双眼的位置信息计算得到所述用户的观看角度信息。The color shift compensation device according to claim 5, wherein the image detecting unit processes the face image information to obtain position information of both eyes of the user, and calculates the position information according to the binoculars The viewing angle information of the user.
  7. 根据权利要求5或6所述的色偏补偿装置，其中，所述摄像单元位于所述显示面板的中间或者所述显示面板边框的中间。The color shift compensation device according to claim 5 or 6, wherein the image pickup unit is located in the middle of the display panel or in the middle of the display panel frame.
  8. 根据权利要求7所述的色偏补偿装置，其中，所述摄像单元设置在所述显示面板上边框的中间。 The color shift compensation device according to claim 7, wherein the image pickup unit is disposed in the middle of a top frame of the display panel.
  9. 根据权利要求5至8中任一项所述的色偏补偿装置，其中，所述观看角度获取模块包括一个或多个摄像单元。The color shift compensation device according to any one of claims 5 to 8, wherein the viewing angle acquisition module includes one or more image pickup units.
  10. 根据权利要求1至9任一所述的色偏补偿装置，其中，所述数据接收处理模块包括存储单元和获取单元；其中，The color shift compensation device according to any one of claims 1 to 9, wherein the data reception processing module comprises a storage unit and an acquisition unit;
    所述存储单元，配置成存储所述观看角度信息与所述色偏量信息的对应关系；The storage unit is configured to store a correspondence between the viewing angle information and the color shift amount information;
    所述获取单元，配置成根据所述观看角度信息从所述存储单元读出对应的色偏量信息。The acquiring unit is configured to read out corresponding color shift amount information from the storage unit according to the viewing angle information.
  11. 一种显示装置，包括如权利要求1至10任一项所述的色偏补偿装置。 A display device comprising the color shift compensation device according to any one of claims 1 to 10.
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CN103888742A (en) * 2014-03-06 2014-06-25 京东方科技集团股份有限公司 Color cast compensation device and display device
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CN106157931A (en) * 2016-06-28 2016-11-23 广东欧珀移动通信有限公司 Control method, control device and electronic installation
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CN112419997B (en) * 2019-08-23 2022-06-10 深圳Tcl数字技术有限公司 Chrominance compensation method, display device and storage medium
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CN112309317A (en) * 2020-10-22 2021-02-02 北京虚拟动点科技有限公司 Screen color difference compensation method, device and system, electronic equipment and storage medium
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