WO2010109625A1 - Display device and display method - Google Patents
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- WO2010109625A1 WO2010109625A1 PCT/JP2009/056113 JP2009056113W WO2010109625A1 WO 2010109625 A1 WO2010109625 A1 WO 2010109625A1 JP 2009056113 W JP2009056113 W JP 2009056113W WO 2010109625 A1 WO2010109625 A1 WO 2010109625A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
Definitions
- the present invention relates to a display device including a sensor for measuring chromaticity or luminance of a display panel, and a display method.
- the above technique has the following problems.
- the first problem is that an LUT for image quality correction is provided in advance at the time of factory shipment, and an image quality correction matrix is selected according to the viewer's angle with reference to this LUT. For this reason, in order to perform optimum image quality correction, it is necessary to perform a complicated calculation in order to obtain a large number of LUTs and interpolation coefficients in order to cope with various viewing angles.
- the second problem is that the image quality correction LUT at the time of shipment from the factory is used as a reference in advance, so feedback regarding whether or not the image quality correction that the viewer actually sees from the front of the screen is correct is not made.
- the third problem is that the brightness and color of display devices such as liquid crystal panels change over time, so if the LUT of the initial data at the time of factory shipment is used for a long time, it can cope with changes in luminance and color. Therefore, the actual luminance and color correction are misaligned.
- the present invention provides a display device and a display method that correct an image according to the angle of a viewer without using an LUT.
- the present invention provides a first sensor that detects at least one of chromaticity or luminance of a display panel included in a display device, and viewing angle information that represents a viewing angle of a user with respect to the display panel.
- An input unit that receives an input and an angle control unit that changes an angle of the first sensor with respect to the display panel according to viewing angle information input from the input unit.
- the present invention includes a second sensor that detects a viewing angle of the user with respect to the display panel, and the input unit receives an input of a detection result of the second sensor. To do.
- the input unit accepts input of viewing angle information representing a viewing angle of the user with respect to the display panel included in the display device, and the sensor detects at least one of chromaticity or luminance of the display panel,
- a control part changes the angle of the 1st sensor with respect to the said display panel according to the viewing angle information input from the said input part, It is characterized by the above-mentioned.
- the viewing angle correction apparatus includes the first sensor (front sensor) that senses the movable color and brightness disposed in the front portion of the display device, and the viewing angle of the viewer with respect to the display device.
- the angle of the first sensor is moved so as to follow the viewing angle detected by the second sensor for detecting the brightness, the luminance or chromaticity of the display device is measured, and the viewing angle is corrected.
- viewing angle information representing the viewing angle of the viewer is obtained, and the detection angle of the first sensor that detects chromaticity or luminance is changed according to the viewing angle information.
- the first effect thus obtained is that the first sensor can be adjusted to the actual viewing angle of the viewer by making the first sensor movable, and the chromaticity of the display panel at the viewing angle of the viewer, The brightness can be detected.
- chromaticity and luminance can be corrected according to the viewing angle of the viewer, and the angle dependence can be reduced for the viewer.
- the second effect is that an LUT stored in advance at the time of shipment from the factory is no longer necessary, and brightness and chromaticity can be corrected in real time.
- the third effect is that even when the display monitor panel or lamp changes over time, it can be measured by the first sensor and corrected according to the actually displayed chromaticity and luminance. became.
- FIG. 2 It is a schematic block diagram which shows the structure of the display apparatus in embodiment of this invention.
- 2 is a flowchart for explaining the operation of the display device in the configuration of FIG. 1.
- It is a block diagram which shows the structure of a drive part.
- FIG. 1 is a schematic block diagram showing a configuration of a display device according to an embodiment of the present invention.
- a front sensor 1 is disposed on the front surface (display surface) of a display panel 2 of a display device such as a television or a monitor, and is at least one of chromaticity and luminance of the display panel 2 on which a video signal is displayed. One is detected. Here, both chromaticity and luminance are detected.
- the front sensor 1 has a drive unit that changes a detection angle with respect to the display panel 2 in accordance with a control signal output from an angle control unit 9 described later.
- the driving unit is disposed in a bezel unit 20 on the entire surface side of the display panel 2.
- FIG. 3 the driving unit is disposed in a bezel unit 20 on the entire surface side of the display panel 2.
- the display panel 2 is disposed on the bezel portion 20 on the upper surface side.
- the bezel portion 20 is provided with a rotation drive motor 21.
- a color / luminance detection sensor 22 is provided at the tip of the drive shaft of the rotary drive motor 21 such that a detectable region faces the display panel 2.
- the rotational drive motor 21 is driven, the angle detected by the color / luminance detection sensor 22 with respect to the display panel 2 changes, for example, in the left-right direction.
- the display panel 2 displays various video signals.
- the display panel 2 is, for example, a liquid crystal panel, and has a characteristic that a visible color or luminance differs depending on a viewing angle.
- the viewing angle here is an angle at which the viewer is positioned with respect to the display panel.
- the color / brightness detection unit 3 receives an analog detection signal output from the front sensor 1, converts it into a digital detection signal, and outputs it to the color / brightness correction unit 4.
- the color / luminance correction unit 4 corrects the chromaticity and luminance of the video signal output from the video signal generation unit 5 and outputs the corrected video signal to the display panel 2.
- the video signal generation unit 5 generates various video signals and outputs the generated video signals to the color / luminance correction unit 4.
- the viewer position detection sensor 6 is provided in the display device and detects the position of the viewer.
- the viewer position detection sensor 6 uses various known detection functions such as an infrared sensor, an ultrasonic sensor, a light emission position detection from a remote controller, a face detection function employed in a digital camera, etc. To detect the viewing angle.
- a CCD Charge-Coupled Device
- the viewer's face can be recognized and the position of the recognized face can be detected as the viewer's position.
- the viewer may input the viewing angle by pressing an operation button provided on a remote controller such as a television or a monitor.
- a remote controller such as a television or a monitor.
- the display device receives this light, and the position of the received light can be specified, whereby the position of the viewer can be specified.
- the position detection unit 7 obtains the detection result of the viewer position output from the viewer position detection sensor 6, identifies the viewer position, and represents the angle with respect to the display panel 2 at the viewer position from the identification result. Generate a signal.
- the viewing angle detection unit 8 determines the viewing angle based on the confirmed viewing angle position of the viewer output from the position detection unit 7. That is, the angle corresponding to the case where the viewer moves or the case where there are a plurality of viewers is determined.
- the viewing angle position here is the position of the viewer at that time.
- the angle control unit 9 generates a control signal indicating the sensor angle of the front sensor 1 and outputs the control signal to the front sensor 1.
- the viewer position detection sensor 6 detects the viewer's viewing position and outputs a detection signal representing the detection result (step S1).
- the viewer may press the operation button to notify the display device of his / her viewing position.
- the position detection unit 7 detects the angle between the viewer position and the display device represented by the detection signal, and the detected angle is the viewing angle representing the viewer viewing angle. It converts into a signal and outputs it to the visual angle detection part 8 (step S2).
- the viewing angle detection unit 8 determines the viewing angle position based on the viewing angle signal output from the position detection unit 7.
- the viewing angle position is determined according to, for example, hysteresis for a viewer position that changes with time, or a preset priority that indicates which viewer is prioritized when viewing with a plurality of viewers. , Detecting the position of a viewer with high priority, or determining the average of the positions of a plurality of viewers (for example, the center of gravity obtained by calculating the average of the coordinate values corresponding to the positions of each viewer) The obtained result is determined as the viewing angle position (step S3).
- the angle control unit 9 When the viewing angle position is determined, the angle control unit 9 outputs to the front sensor 1 an angle control signal for controlling the angle of the front sensor 1 with respect to the liquid crystal panel 2 so that the angle corresponds to the viewing angle position (step S4). ).
- the front sensor 1 changes the angle according to the angle control signal output from the angle control unit 9 (step S5).
- the rotation drive motor 21 is driven in accordance with an instruction from the angle control unit 9 to change the direction of the detection direction of the color / luminance detection sensor 22.
- the display in the area where the display panel 2 and the front sensor 1 overlap is different from the video signal input from the outside (video signal generation unit 5), and each color (R, G, B) generated inside the display device.
- the gamma characteristic of the front sensor 1 is measured by displaying white, which is a combination of the luminescent colors, displaying the displayed color in order from low gradation to high gradation, and measuring at each gradation.
- the color / brightness detection unit 3 receives an analog detection signal representing the measurement result output from the front sensor 1, converts the analog detection signal into a digital detection signal, and outputs the digital detection signal to the color / brightness conversion unit 4. .
- the color / luminance correction unit 4 corrects the original luminance and color output from the detection result output from the color / luminance detection unit 3 (step S6). For example, when the original gamma characteristic is 2.2 and the color / brightness detection unit 4 obtains a detection result deviating from gamma 2.2 from the color / brightness detection unit 3, the video signal generation unit 5 Is corrected to normal gamma 2.2 and output to the display panel 2.
- step S7 the process up to step S6 is repeated.
- the color and brightness of the display device can be corrected according to the position of the viewer with respect to the display device.
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Abstract
A display device is provided with a first sensor which detects at least chromaticity or luminance of a display panel provided in a display device; an input section which receives input of viewing angle information indicating a viewing angle of a user with respect to the display panel; and an angle control section which changes the angle of the first sensor with respect to the display panel, corresponding to the viewing angle information inputted from the input section. It is also possible to arrange a second sensor for detecting the viewing angle of the user with respect to the display panel. In such case, the input section may be permitted to receive input of the detection results of the second sensor.
Description
本発明は、表示パネルの色度あるいは輝度を測定するセンサを備える表示装置、表示方法に関する。
The present invention relates to a display device including a sensor for measuring chromaticity or luminance of a display panel, and a display method.
従来、液晶モニタ等の視野角依存性のある表示装置の場合、画面を見る視聴者の角度に対応した色味や輝度を最適な画質にするための方法として、下記の特許文献に記載された技術がある。
この技術では、ＬＵＴ（Look up Table）を用い、表示装置の画面に対して視聴者が見る角度に応じて、画質補正マトリクスを選択し、選択した画質補正マトリクスを用いて画像を補正する。これにより、視聴者の位置に応じた画質補正を行うことができる。
特開２００６－２７６６９２号公報
Conventionally, in the case of a display device having a viewing angle dependency such as a liquid crystal monitor, it has been described in the following patent document as a method for obtaining an optimum image quality of color and brightness corresponding to the angle of the viewer viewing the screen. There is technology.
In this technique, an LUT (Look up Table) is used to select an image quality correction matrix according to the angle at which the viewer views the screen of the display device, and the image is corrected using the selected image quality correction matrix. Thereby, image quality correction according to the position of the viewer can be performed.
JP 2006-276692 A
この技術では、ＬＵＴ（Look up Table）を用い、表示装置の画面に対して視聴者が見る角度に応じて、画質補正マトリクスを選択し、選択した画質補正マトリクスを用いて画像を補正する。これにより、視聴者の位置に応じた画質補正を行うことができる。
In this technique, an LUT (Look up Table) is used to select an image quality correction matrix according to the angle at which the viewer views the screen of the display device, and the image is corrected using the selected image quality correction matrix. Thereby, image quality correction according to the position of the viewer can be performed.
しかしながら、上述の技術においては、次のような問題点がある。
第1の問題は、予め工場出荷時に画質補正用のLUTが設けられており、このＬＵＴを参照し、視聴者の角度に応じて画質補正マトリクスを選択する。このため、最適な画質補正を行うには、種々の視角に対応するためには、膨大なLUTや、補間係数を求めるために複雑な計算をする必要がある。
第2の問題は、予め工場出荷時の画質補正LUTを基準として用いるため、視聴者が実際に画面正面から見る画質補正が正しいか否かのフィードバックがなされていない。従って、例えば、実際には、表示装置の液晶パネルの温度変化による輝度や色味の変化に追従できない問題がある。
第3の問題は、液晶パネル等の表示装置は、経時的に輝度や色味が変化するため、工場出荷時の初期データのLUTを長期間使用した場合、輝度や色味の変化に対応できず、従って、実際の輝度や色味の補正にズレが生じてしまう。 However, the above technique has the following problems.
The first problem is that an LUT for image quality correction is provided in advance at the time of factory shipment, and an image quality correction matrix is selected according to the viewer's angle with reference to this LUT. For this reason, in order to perform optimum image quality correction, it is necessary to perform a complicated calculation in order to obtain a large number of LUTs and interpolation coefficients in order to cope with various viewing angles.
The second problem is that the image quality correction LUT at the time of shipment from the factory is used as a reference in advance, so feedback regarding whether or not the image quality correction that the viewer actually sees from the front of the screen is correct is not made. Therefore, for example, in practice, there is a problem that it cannot follow changes in luminance and color due to temperature changes in the liquid crystal panel of the display device.
The third problem is that the brightness and color of display devices such as liquid crystal panels change over time, so if the LUT of the initial data at the time of factory shipment is used for a long time, it can cope with changes in luminance and color. Therefore, the actual luminance and color correction are misaligned.
第1の問題は、予め工場出荷時に画質補正用のLUTが設けられており、このＬＵＴを参照し、視聴者の角度に応じて画質補正マトリクスを選択する。このため、最適な画質補正を行うには、種々の視角に対応するためには、膨大なLUTや、補間係数を求めるために複雑な計算をする必要がある。
第2の問題は、予め工場出荷時の画質補正LUTを基準として用いるため、視聴者が実際に画面正面から見る画質補正が正しいか否かのフィードバックがなされていない。従って、例えば、実際には、表示装置の液晶パネルの温度変化による輝度や色味の変化に追従できない問題がある。
第3の問題は、液晶パネル等の表示装置は、経時的に輝度や色味が変化するため、工場出荷時の初期データのLUTを長期間使用した場合、輝度や色味の変化に対応できず、従って、実際の輝度や色味の補正にズレが生じてしまう。 However, the above technique has the following problems.
The first problem is that an LUT for image quality correction is provided in advance at the time of factory shipment, and an image quality correction matrix is selected according to the viewer's angle with reference to this LUT. For this reason, in order to perform optimum image quality correction, it is necessary to perform a complicated calculation in order to obtain a large number of LUTs and interpolation coefficients in order to cope with various viewing angles.
The second problem is that the image quality correction LUT at the time of shipment from the factory is used as a reference in advance, so feedback regarding whether or not the image quality correction that the viewer actually sees from the front of the screen is correct is not made. Therefore, for example, in practice, there is a problem that it cannot follow changes in luminance and color due to temperature changes in the liquid crystal panel of the display device.
The third problem is that the brightness and color of display devices such as liquid crystal panels change over time, so if the LUT of the initial data at the time of factory shipment is used for a long time, it can cope with changes in luminance and color. Therefore, the actual luminance and color correction are misaligned.
上述した問題を解決するために、本発明は、ＬＵＴを用いずに、視聴者の角度に応じて画像を補正す表示装置、表示方法を提供する。
In order to solve the above-described problems, the present invention provides a display device and a display method that correct an image according to the angle of a viewer without using an LUT.
上述した課題を解決するために、本発明は、表示装置が備える表示パネルの色度または輝度の少なくともいずれか一方を検出する第１のセンサと、前記表示パネルに対するユーザの視角を表す視角情報の入力を受け付ける入力部と、前記入力部から入力される視角情報に応じて、前記表示パネルに対する第１のセンサの角度を変更する角度制御部と、を有することを特徴とする。
In order to solve the above-described problem, the present invention provides a first sensor that detects at least one of chromaticity or luminance of a display panel included in a display device, and viewing angle information that represents a viewing angle of a user with respect to the display panel. An input unit that receives an input and an angle control unit that changes an angle of the first sensor with respect to the display panel according to viewing angle information input from the input unit.
また、本発明は、上述の表示装置において、表示パネルに対するユーザの視角を検出する第２のセンサを有し、前記入力部は、前記第２のセンサの検出結果の入力を受け付けることを特徴とする。
In the display device described above, the present invention includes a second sensor that detects a viewing angle of the user with respect to the display panel, and the input unit receives an input of a detection result of the second sensor. To do.
また、本発明は、入力部が、表示装置が備える表示パネルに対するユーザの視角を表す視角情報の入力を受け付け、センサが、前記表示パネルの色度または輝度の少なくともいずれか一方を検出し、角度制御部が、前記入力部から入力される視角情報に応じて、前記表示パネルに対する第１のセンサの角度を変更することを特徴とする。
In the present invention, the input unit accepts input of viewing angle information representing a viewing angle of the user with respect to the display panel included in the display device, and the sensor detects at least one of chromaticity or luminance of the display panel, A control part changes the angle of the 1st sensor with respect to the said display panel according to the viewing angle information input from the said input part, It is characterized by the above-mentioned.
このように、本発明における視野角補正装置は、表示装置の前面部分に配置された可動式の色と輝度を感知する第1のセンサ（フロントセンサ）を有し、視聴者の表示装置に対する視角を検知する第2のセンサにより検知した視角に追従するように第1のセンサの角度を動かし、表示装置の輝度あるいは色度を測定し、視野角補正を行うものである。
As described above, the viewing angle correction apparatus according to the present invention includes the first sensor (front sensor) that senses the movable color and brightness disposed in the front portion of the display device, and the viewing angle of the viewer with respect to the display device. The angle of the first sensor is moved so as to follow the viewing angle detected by the second sensor for detecting the brightness, the luminance or chromaticity of the display device is measured, and the viewing angle is corrected.
本発明によれば、視聴者の視角を表す視角情報を得て、この視角情報に応じて、色度あるいは輝度を検出する第１のセンサの検出角度を変更するようにした。
これにより得られる第1の効果は、第１のセンサを可動式にすることにより、実際の視聴者の視角に第1のセンサを合わせることができ、視聴者の視角における表示パネルの色度、輝度の検出が可能になった。これにより、視聴者の視角に応じた色度、輝度の補正を行うことができ、視聴者に対し、角度依存性を低減することができる。
第２の効果は、工場出荷時に予め格納するＬＵＴが不要になり、リアルタイムに輝度、色度を補正することが可能になった。
第３の効果は、表示モニタのパネルやランプが経時的に変化した場合であっても、第１のセンサにて測定し、実際に表示された色度、輝度にしたがって補正することが可能になった。 According to the present invention, viewing angle information representing the viewing angle of the viewer is obtained, and the detection angle of the first sensor that detects chromaticity or luminance is changed according to the viewing angle information.
The first effect thus obtained is that the first sensor can be adjusted to the actual viewing angle of the viewer by making the first sensor movable, and the chromaticity of the display panel at the viewing angle of the viewer, The brightness can be detected. As a result, chromaticity and luminance can be corrected according to the viewing angle of the viewer, and the angle dependence can be reduced for the viewer.
The second effect is that an LUT stored in advance at the time of shipment from the factory is no longer necessary, and brightness and chromaticity can be corrected in real time.
The third effect is that even when the display monitor panel or lamp changes over time, it can be measured by the first sensor and corrected according to the actually displayed chromaticity and luminance. became.
これにより得られる第1の効果は、第１のセンサを可動式にすることにより、実際の視聴者の視角に第1のセンサを合わせることができ、視聴者の視角における表示パネルの色度、輝度の検出が可能になった。これにより、視聴者の視角に応じた色度、輝度の補正を行うことができ、視聴者に対し、角度依存性を低減することができる。
第２の効果は、工場出荷時に予め格納するＬＵＴが不要になり、リアルタイムに輝度、色度を補正することが可能になった。
第３の効果は、表示モニタのパネルやランプが経時的に変化した場合であっても、第１のセンサにて測定し、実際に表示された色度、輝度にしたがって補正することが可能になった。 According to the present invention, viewing angle information representing the viewing angle of the viewer is obtained, and the detection angle of the first sensor that detects chromaticity or luminance is changed according to the viewing angle information.
The first effect thus obtained is that the first sensor can be adjusted to the actual viewing angle of the viewer by making the first sensor movable, and the chromaticity of the display panel at the viewing angle of the viewer, The brightness can be detected. As a result, chromaticity and luminance can be corrected according to the viewing angle of the viewer, and the angle dependence can be reduced for the viewer.
The second effect is that an LUT stored in advance at the time of shipment from the factory is no longer necessary, and brightness and chromaticity can be corrected in real time.
The third effect is that even when the display monitor panel or lamp changes over time, it can be measured by the first sensor and corrected according to the actually displayed chromaticity and luminance. became.
１ フロントセンサ ２ 表示パネル
３ 色・輝度検出部 ４ 色・輝度補正部
５ 映像信号発生部 ６ 視聴者位置検出センサ
７ 位置検出部 ８ 視角検出部
９ 角度制御部 DESCRIPTION OF SYMBOLS 1Front sensor 2 Display panel 3 Color / brightness detection part 4 Color / brightness correction part 5 Video signal generation part 6 Viewer position detection sensor 7 Position detection part 8 Viewing angle detection part 9 Angle control part
３ 色・輝度検出部 ４ 色・輝度補正部
５ 映像信号発生部 ６ 視聴者位置検出センサ
７ 位置検出部 ８ 視角検出部
９ 角度制御部 DESCRIPTION OF SYMBOLS 1
図１は、本発明の実施形態における表示装置の構成を示す概略ブロック図である。この図において、フロントセンサ１は、テレビ、モニタ等の表示装置の表示パネル２の前面（表示面）に配置され、映像信号が表示された表示パネル２の色度と輝度とのうち少なくともいずれか一方を検出する。ここでは、色度と輝度との両方を検出する。また、このフロントセンサ１は、後述する角度制御部９から出力される制御信号に応じて、表示パネル２に対する検出角度を変更する駆動部を有する。この駆動部は、例えば、図３に示すように、表示パネル２の全面側のベゼル部２０に配置される。この図３においては、一例として、表示パネル２の上面側のベゼル部２０に配置される。このベゼル部２０には、回転駆動モータ２１が設けられている。この回転駆動モータ２１の駆動軸の先端には、色・輝度検出センサ２２が、その検出可能な領域が表示パネル２に向かうように設けられている。この回転駆動モータ２１が駆動することによって、色・輝度検出センサ２２の表示パネル２に対する検出する角度が、例えば、左右の方向に変化する。
FIG. 1 is a schematic block diagram showing a configuration of a display device according to an embodiment of the present invention. In this figure, a front sensor 1 is disposed on the front surface (display surface) of a display panel 2 of a display device such as a television or a monitor, and is at least one of chromaticity and luminance of the display panel 2 on which a video signal is displayed. One is detected. Here, both chromaticity and luminance are detected. Further, the front sensor 1 has a drive unit that changes a detection angle with respect to the display panel 2 in accordance with a control signal output from an angle control unit 9 described later. For example, as shown in FIG. 3, the driving unit is disposed in a bezel unit 20 on the entire surface side of the display panel 2. In FIG. 3, as an example, the display panel 2 is disposed on the bezel portion 20 on the upper surface side. The bezel portion 20 is provided with a rotation drive motor 21. A color / luminance detection sensor 22 is provided at the tip of the drive shaft of the rotary drive motor 21 such that a detectable region faces the display panel 2. When the rotational drive motor 21 is driven, the angle detected by the color / luminance detection sensor 22 with respect to the display panel 2 changes, for example, in the left-right direction.
表示パネル２は、各種映像信号を表示する。この表示パネル２は、例えば、液晶パネルであり、視角によっては、見える色あるいは輝度が異なる特性がある。ここでいう視角とは、表示パネルに対し、視聴者が位置する角度である。色・輝度検出部３は、フロントセンサ１から出力されるアナログの検出信号を入力し、デジタルの検出信号に変換して色・輝度補正部４に出力する。色・輝度補正部4は、映像信号発生部５から出力される映像信号に対し、色度、輝度を補正し、表示パネル２に出力する。映像信号発生部5は、各種の映像信号を生成し、生成した映像信号を色・輝度補正部４に出力する。
The display panel 2 displays various video signals. The display panel 2 is, for example, a liquid crystal panel, and has a characteristic that a visible color or luminance differs depending on a viewing angle. The viewing angle here is an angle at which the viewer is positioned with respect to the display panel. The color / brightness detection unit 3 receives an analog detection signal output from the front sensor 1, converts it into a digital detection signal, and outputs it to the color / brightness correction unit 4. The color / luminance correction unit 4 corrects the chromaticity and luminance of the video signal output from the video signal generation unit 5 and outputs the corrected video signal to the display panel 2. The video signal generation unit 5 generates various video signals and outputs the generated video signals to the color / luminance correction unit 4.
視聴者位置検出センサ6は、表示装置に設けられており、視聴者の位置を検出する。この視聴者位置検出センサ６は、視聴者の視角を各種の公知の検出機能、例えば、赤外線センサ、超音波センサ、リモコンからの発光位置検出、デジタルカメラ等で採用されている顔検出機能を用いて視角を検知する。CCD（Charge Coupled Device）カメラ等を用いた方法やデジタルカメラの顔認識機能を用い、視聴者の顔を認識し、この認識した顔の位置を視聴者の位置として検出することができる。
The viewer position detection sensor 6 is provided in the display device and detects the position of the viewer. The viewer position detection sensor 6 uses various known detection functions such as an infrared sensor, an ultrasonic sensor, a light emission position detection from a remote controller, a face detection function employed in a digital camera, etc. To detect the viewing angle. By using a method using a CCD (Charge-Coupled Device) camera or the like and a face recognition function of a digital camera, the viewer's face can be recognized and the position of the recognized face can be detected as the viewer's position.
ここでは、視聴者位置検出センサ６として、上述の各種センサを用いる以外に、視聴者がテレビ、モニタ等のリモコンに設けられた操作ボタンを押下することによって、視角を入力するようにしてもよい。ここでは、操作ボタンが押下され、リモコンの発光部が発光すると、表示装置がこの光を受光し、受光した光の位置を特定することによって、視聴者の位置を特定することが可能である。
Here, in addition to using the various sensors described above as the viewer position detection sensor 6, the viewer may input the viewing angle by pressing an operation button provided on a remote controller such as a television or a monitor. . Here, when the operation button is pressed and the light emitting unit of the remote controller emits light, the display device receives this light, and the position of the received light can be specified, whereby the position of the viewer can be specified.
位置検出部7は、視聴者位置検出センサ6が出力する視聴者の位置の検出結果を得て、視聴者の位置を特定し、特定結果から、視聴者の位置における表示パネル２に対する角度を表す信号を生成する。視角検出部8は、位置検出部７から出力された、確定した視聴者の視角位置に基づいて、視角を決定する。すなわち、視聴者が動く場合や視聴者が複数存在する場合に対応した角度を決定する。ここでいう視角位置とは、そのときの視聴者の位置である。角度制御部9は、フロントセンサ１のセンサ角度を指示する制御信号を生成し、フロントセンサ１に出力する。
The position detection unit 7 obtains the detection result of the viewer position output from the viewer position detection sensor 6, identifies the viewer position, and represents the angle with respect to the display panel 2 at the viewer position from the identification result. Generate a signal. The viewing angle detection unit 8 determines the viewing angle based on the confirmed viewing angle position of the viewer output from the position detection unit 7. That is, the angle corresponding to the case where the viewer moves or the case where there are a plurality of viewers is determined. The viewing angle position here is the position of the viewer at that time. The angle control unit 9 generates a control signal indicating the sensor angle of the front sensor 1 and outputs the control signal to the front sensor 1.
次に、上述した図１の構成における表示装置の動作について、図２のフローチャートを用いて説明する。
視聴者位置検出センサ６は、視聴者の視聴位置を検知し、検知結果を表す検知信号を出力する（ステップＳ１）。ここでは、視聴者が操作ボタンを押下して、自身の視聴位置を表示装置に通知するようにしてもよい。
視聴者位置検出センサ６から検知信号が出力されると、位置検出部７は、検知信号が表す視聴者の位置と表示装置との角度を検出し、検出した角度を視聴者の視角を表す視角信号に変換し、視角検出部８に出力する（ステップＳ２）。 Next, the operation of the display device in the configuration of FIG. 1 described above will be described with reference to the flowchart of FIG.
The viewerposition detection sensor 6 detects the viewer's viewing position and outputs a detection signal representing the detection result (step S1). Here, the viewer may press the operation button to notify the display device of his / her viewing position.
When the detection signal is output from the viewerposition detection sensor 6, the position detection unit 7 detects the angle between the viewer position and the display device represented by the detection signal, and the detected angle is the viewing angle representing the viewer viewing angle. It converts into a signal and outputs it to the visual angle detection part 8 (step S2).
視聴者位置検出センサ６は、視聴者の視聴位置を検知し、検知結果を表す検知信号を出力する（ステップＳ１）。ここでは、視聴者が操作ボタンを押下して、自身の視聴位置を表示装置に通知するようにしてもよい。
視聴者位置検出センサ６から検知信号が出力されると、位置検出部７は、検知信号が表す視聴者の位置と表示装置との角度を検出し、検出した角度を視聴者の視角を表す視角信号に変換し、視角検出部８に出力する（ステップＳ２）。 Next, the operation of the display device in the configuration of FIG. 1 described above will be described with reference to the flowchart of FIG.
The viewer
When the detection signal is output from the viewer
視角検出部８は、位置検出部７から出力される視角信号に基づいて、視角位置を決定する。この視角位置の決定は、例えば、時間に応じて変化する視聴者位置に対してヒステリシス等や、複数の視聴者で見る場合は、どの視聴者を優先するかを表す予め設定された優先度に従い、その優先度が高い視聴者の位置を検出したり、複数の視聴者の位置の平均（例えば、各視聴者の位置に対応する座標の値の平均を求めることによって得られる重心）を求め、得られた結果を視角位置として決定する（ステップＳ３）。
The viewing angle detection unit 8 determines the viewing angle position based on the viewing angle signal output from the position detection unit 7. The viewing angle position is determined according to, for example, hysteresis for a viewer position that changes with time, or a preset priority that indicates which viewer is prioritized when viewing with a plurality of viewers. , Detecting the position of a viewer with high priority, or determining the average of the positions of a plurality of viewers (for example, the center of gravity obtained by calculating the average of the coordinate values corresponding to the positions of each viewer) The obtained result is determined as the viewing angle position (step S3).
視角位置が決定されると、角度制御部９は、視角位置に応じた角度になるように、フロントセンサ1の液晶パネル２に対する角度を制御する角度制御信号をフロントセンサ１に出力する（ステップＳ４）。フロントセンサ1は、角度制御部９から出力される角度制御信号に従い、角度を変更する（ステップＳ５）。ここでは、回転駆動モータ２１が角度制御部９からの指示に応じて駆動し、色・輝度検出センサ２２の検出方向の向きを変更する。
When the viewing angle position is determined, the angle control unit 9 outputs to the front sensor 1 an angle control signal for controlling the angle of the front sensor 1 with respect to the liquid crystal panel 2 so that the angle corresponds to the viewing angle position (step S4). ). The front sensor 1 changes the angle according to the angle control signal output from the angle control unit 9 (step S5). Here, the rotation drive motor 21 is driven in accordance with an instruction from the angle control unit 9 to change the direction of the detection direction of the color / luminance detection sensor 22.
ここで、表示パネル２とフロントセンサ１とが重なる領域における表示は、外部（映像信号発生部５）から入力される映像信号とは異なり、表示装置内部で生成した各色(Ｒ、Ｇ、Ｂ)または、発光色の合成である白色を表示し、この表示した色を低階調から高階調を順次表示し、それぞれの階調において測定することによって、フロントセンサ１によるガンマ特性を測定する。色・輝度検出部３は、フロントセンサ１から出力される測定結果を表すアナログの検出信号を入力し、このアナログの検出信号をデジタルの検出信号に変換し、色・輝度変換部４に出力する。色・輝度補正部４は、色・輝度検出部３から出力される検出結果から、本来の輝度、色出力になるように補正する（ステップＳ６）。例えば、色・輝度補正部４は、本来のガンマ特性が２．２である場合に、色・輝度検出部３からガンマ２．２からずれた検出結果が得られた場合、映像信号発生部５から出力される映像信号を補正し、正規のガンマ２．２に補正して、表示パネル２に出力する。
Here, the display in the area where the display panel 2 and the front sensor 1 overlap is different from the video signal input from the outside (video signal generation unit 5), and each color (R, G, B) generated inside the display device. Alternatively, the gamma characteristic of the front sensor 1 is measured by displaying white, which is a combination of the luminescent colors, displaying the displayed color in order from low gradation to high gradation, and measuring at each gradation. The color / brightness detection unit 3 receives an analog detection signal representing the measurement result output from the front sensor 1, converts the analog detection signal into a digital detection signal, and outputs the digital detection signal to the color / brightness conversion unit 4. . The color / luminance correction unit 4 corrects the original luminance and color output from the detection result output from the color / luminance detection unit 3 (step S6). For example, when the original gamma characteristic is 2.2 and the color / brightness detection unit 4 obtains a detection result deviating from gamma 2.2 from the color / brightness detection unit 3, the video signal generation unit 5 Is corrected to normal gamma 2.2 and output to the display panel 2.
以降、電源断あるいは終了の指示が入力されるまで、ステップＳ１に移行し、ステップＳ６までの処理を繰り返す（ステップＳ７）。
Thereafter, until a power-off or termination instruction is input, the process proceeds to step S1, and the process up to step S6 is repeated (step S7).
表示装置に対する視聴者の位置に応じて、表示装置の色・輝度を補正することができる。
The color and brightness of the display device can be corrected according to the position of the viewer with respect to the display device.
Claims (3)
- 表示装置が備える表示パネルの色度または輝度の少なくともいずれか一方を検出する第１のセンサと、
前記表示パネルに対するユーザの視角を表す視角情報の入力を受け付ける入力部と、
前記入力部から入力される視角情報に応じて、前記表示パネルに対する第１のセンサの角度を変更する角度制御部と、
を有することを特徴とする表示装置。 A first sensor that detects at least one of chromaticity and luminance of a display panel included in the display device;
An input unit that receives input of viewing angle information representing a viewing angle of the user with respect to the display panel;
An angle control unit that changes an angle of the first sensor with respect to the display panel according to viewing angle information input from the input unit;
A display device comprising: - 表示パネルに対するユーザの視角を検出する第２のセンサを有し、
前記入力部は、前記第２のセンサの検出結果の入力を受け付ける
ことを特徴とする請求項１記載の表示装置。 A second sensor for detecting a viewing angle of the user with respect to the display panel;
The display device according to claim 1, wherein the input unit receives an input of a detection result of the second sensor. - 入力部が、表示装置が備える表示パネルに対するユーザの視角を表す視角情報の入力を受け付け、
センサが、前記表示パネルの色度または輝度の少なくともいずれか一方を検出し、
角度制御部が、前記入力部から入力される視角情報に応じて、前記表示パネルに対する第１のセンサの角度を変更する
ことを特徴とする表示方法。 The input unit accepts input of viewing angle information representing the viewing angle of the user with respect to the display panel included in the display device,
A sensor detects at least one of chromaticity or luminance of the display panel;
A display method, wherein the angle control unit changes the angle of the first sensor with respect to the display panel in accordance with viewing angle information input from the input unit.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013099722A1 (en) * | 2011-12-26 | 2013-07-04 | シャープ株式会社 | Display device and display method |
| CN103241200A (en) * | 2012-02-07 | 2013-08-14 | 罗伯特·博世有限公司 | Device and method for determining compensation parameter for cross talks with multi-view-operable display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07294872A (en) * | 1994-04-20 | 1995-11-10 | Fujitsu General Ltd | Liquid crystal display panel |
| JP2001265296A (en) * | 2000-01-14 | 2001-09-28 | Sharp Corp | Transmission type liquid crystal display device and picture processing method |
| JP2006276692A (en) * | 2005-03-30 | 2006-10-12 | Fujitsu Ltd | High-picture quality reproducing apparatus for viewing-angle dependent display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06332385A (en) * | 1993-05-18 | 1994-12-02 | Sharp Corp | Display device |
| JP2006220714A (en) * | 2005-02-08 | 2006-08-24 | Fuji Photo Film Co Ltd | Liquid crystal display apparatus, display control method thereof, and display control program for liquid crystal display apparatus |
-
2009
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07294872A (en) * | 1994-04-20 | 1995-11-10 | Fujitsu General Ltd | Liquid crystal display panel |
| JP2001265296A (en) * | 2000-01-14 | 2001-09-28 | Sharp Corp | Transmission type liquid crystal display device and picture processing method |
| JP2006276692A (en) * | 2005-03-30 | 2006-10-12 | Fujitsu Ltd | High-picture quality reproducing apparatus for viewing-angle dependent display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013099722A1 (en) * | 2011-12-26 | 2013-07-04 | シャープ株式会社 | Display device and display method |
| CN103241200A (en) * | 2012-02-07 | 2013-08-14 | 罗伯特·博世有限公司 | Device and method for determining compensation parameter for cross talks with multi-view-operable display device |
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