JP3770019B2 - display device - Google Patents

display device Download PDF

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Publication number
JP3770019B2
JP3770019B2 JP35430099A JP35430099A JP3770019B2 JP 3770019 B2 JP3770019 B2 JP 3770019B2 JP 35430099 A JP35430099 A JP 35430099A JP 35430099 A JP35430099 A JP 35430099A JP 3770019 B2 JP3770019 B2 JP 3770019B2
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JP
Japan
Prior art keywords
display
screen
illumination
screen information
display screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP35430099A
Other languages
Japanese (ja)
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JP2001175192A (en
Inventor
将之 吉川
忍 馬場
Original Assignee
松下電器産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 松下電器産業株式会社 filed Critical 松下電器産業株式会社
Priority to JP35430099A priority Critical patent/JP3770019B2/en
Publication of JP2001175192A publication Critical patent/JP2001175192A/en
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Publication of JP3770019B2 publication Critical patent/JP3770019B2/en
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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to illumination brightness control of a display device.
[0002]
[Prior art]
In recent personal computers, a multi-window system is mainstream, and a plurality of display areas can be displayed on a display screen of a display device.
[0003]
On the other hand, the number of liquid crystal display devices such as notebook computers is increasing, and such display devices include an illumination device that irradiates the display screen in order to improve the visibility of the display screen.
[0004]
In some of such conventional display devices, when a certain display area occupies the entire display screen in order to further improve the visibility, the illumination brightness is automatically adjusted according to the display content.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional display device, when a certain display area occupies almost the entire display screen but not completely, the illumination brightness is not automatically adjusted. There was a problem that it was too dark to see.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide a display device that automatically controls illumination brightness without visual discomfort according to display contents.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the display device of the present invention is acquired by a display unit, an illumination unit that irradiates a display screen of the display unit, a screen information acquisition unit that acquires screen information of the display unit, and a screen information acquisition unit. By having the illumination brightness control means for controlling the illumination brightness of the illumination means based on the screen information, the illumination brightness control based on the display state of the entire screen can be performed.
[0008]
Also, by using the area occupancy ratio, which is the ratio of the current window displayed on the display screen as screen information to the entire display screen , when the area occupancy ratio is high, the illumination brightness is changed and the area occupancy ratio is low. In this case, the illumination luminance is changed, and when the area occupancy is low, the illumination luminance can be set to a normal value.
[0009]
Furthermore, by using the average luminance of a certain display area as screen information, it is possible to control the illumination luminance according to the display content.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the drawings.
[0011]
(Embodiment 1)
FIG. 1 is a configuration diagram of a display device according to the present embodiment.
[0012]
101 is a display means for displaying data, 102 is an illumination means for irradiating the display screen of the display means 101, 103 is a screen information acquisition means for acquiring screen information of the display screen of the display means 101, and 104 is a screen information acquisition means 103. It is an illumination brightness control means for controlling the illumination brightness of the illumination means 102 based on the acquired screen information.
[0013]
In the present embodiment, the screen information acquired by the screen information acquisition unit 103 is the ratio of the current window to the entire display screen among the plurality of windows displayed on the display screen (hereinafter referred to as area occupancy). .
[0014]
FIG. 2 is a diagram showing a display screen when the area occupation ratio of the current window is 0% to 59%.
[0015]
In the present embodiment, it is assumed that the illumination brightness when the area occupation ratio of the current window is 0% to 59% is a normal value of 200 candela / square meter.
[0016]
FIG. 3 is a diagram showing a display screen when the area occupation ratio of the current window is 60% to 100%.
[0017]
As shown in FIG. 3, when the area occupancy of the current window is 60% to 100%, information on windows other than the current window is often not particularly important for the user. It is thought that the creation and browsing of the homepage by the browser are the main. In these operations, since the background color is overwhelmingly white, the illumination brightness control means 104 lowers the illumination brightness of the display screen to 150 candelas / square meter to improve the visibility by making it easy for the user to see. it can.
[0018]
(Embodiment 2)
FIG. 4 is a configuration diagram of the display device according to the present embodiment.
[0019]
In FIG. 4, each component is the same as each component of the display device according to the first embodiment, but the screen information acquisition unit 403 acquires the average luminance in addition to the area occupancy of the current window as the screen information. The illumination luminance control means 404 controls the illumination luminance of the display screen based on the average luminance in addition to the area occupation ratio of the current window.
[0020]
Also in the present embodiment, when the area occupation ratio of the current window is 0% to 59%, the illumination luminance is assumed to be a normal value of 200 candela / square meter as in the first embodiment.
[0021]
FIG. 5 is a diagram showing a display screen when the area occupation ratio of the current window is 60% to 100% and the average luminance is high (the display content is close to a white system).
[0022]
In this case, the illumination luminance control means 404 can improve the visibility by lowering the illumination luminance of the display screen to 150 candela / square meter to make the display easy for the user to see.
[0023]
FIG. 6 is a diagram showing a display screen when the area occupation ratio of the current window is 60% to 100% and the average luminance is low (the display content is close to the black system).
[0024]
In this case, the illumination luminance control means 404 can increase the visibility by increasing the illumination luminance of the display screen to 300 candela / square meter so that it can be easily viewed by the user.
[0025]
The illumination brightness based on the area occupancy of the current window and the brightness information may be arbitrarily set.
[0026]
The display device may be a liquid crystal display panel of a personal digital assistant (PDA, mobile phone, PHS, etc.).
[0027]
【The invention's effect】
As described in detail above, according to the present invention, optimal illumination brightness control of the display screen can be performed according to the screen information, and the visibility of the user can be enhanced.
Also, by obtaining the area occupancy rate of a predetermined display area as screen information and illuminating the display screen with the illumination brightness based on this screen information, if the area occupancy is high, the illumination brightness of the display screen is lowered, When the area occupancy is low, the illumination brightness is set to the normal value, and the display brightness can be automatically controlled according to the display content, and it is too bright and dazzling or too dark. There is no problem, and visibility can be enhanced by making the display easy to see for the user.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a display device according to a first embodiment. FIG. 2 is a diagram showing a display screen when the area occupation ratio of a current window is 0% to 59% in the first embodiment. FIG. 4 is a diagram showing a display screen when the area occupation ratio of the current window is 60% to 100% in the first embodiment. FIG. 4 is a configuration diagram of a display device according to the second embodiment. FIG. 6 is a diagram showing a display screen when average brightness is high at 100% to 100% (display content is close to a white system). FIG. 6 is an area occupancy of the current window is 60% to 100% and average brightness is low Figure showing the display screen when it is close to the black system [Explanation of symbols]
101, 401 Display means 102, 402 Illumination means 103, 403 Screen information acquisition means 104, 404 Illumination brightness control means

Claims (2)

  1. Display means, illumination means for illuminating the display screen of the display means, screen information acquisition means for acquiring screen information of the display means, and the illumination means based on the screen information acquired by the screen information acquisition means A display device comprising illumination brightness control means for controlling illumination brightness, wherein the current window displayed on the display screen as the screen information has an area occupancy ratio that is a ratio of the entire display screen .
  2. A display procedure for displaying data on the display means, a screen information acquisition procedure for acquiring screen information of the display means, and a display screen of the display means with illumination brightness based on the screen information acquired in the screen information acquisition procedure A display method comprising an illumination procedure for irradiating, wherein an area occupancy ratio which is a ratio of a current window displayed on the display screen as the screen information occupies the entire display screen .
JP35430099A 1999-12-14 1999-12-14 display device Expired - Fee Related JP3770019B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35430099A JP3770019B2 (en) 1999-12-14 1999-12-14 display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35430099A JP3770019B2 (en) 1999-12-14 1999-12-14 display device

Publications (2)

Publication Number Publication Date
JP2001175192A JP2001175192A (en) 2001-06-29
JP3770019B2 true JP3770019B2 (en) 2006-04-26

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Application Number Title Priority Date Filing Date
JP35430099A Expired - Fee Related JP3770019B2 (en) 1999-12-14 1999-12-14 display device

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002072998A (en) * 2000-08-25 2002-03-12 Internatl Business Mach Corp <Ibm> Luminance controller, luminance adjusting system, computer system, liquid crystal display device, luminance control method, computer program and storage medium
JP4796710B2 (en) * 2001-05-25 2011-10-19 Necディスプレイソリューションズ株式会社 Display device
JP5262698B2 (en) * 2008-12-26 2013-08-14 パナソニック株式会社 Video display device
WO2010143455A1 (en) * 2009-06-11 2010-12-16 株式会社日立製作所 Display device

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