Method and device for protecting eyes through screen displaying setting

• US 6,483,485 B1
• Filed: 04/14/2000
• Issued: 11/19/2002
• Est. Priority Date: 08/18/1999
• Status: Expired due to Fees

• Current Assignee: Jung-Tang Huang
• Original Assignee: Jung-Tang Huang
• Inventors: Huang, Jung-Tang, He, Jau-Wei
• Primary Examiner(s): Hjerpe, Richard
• Assistant Examiner(s): Laneau, Ronald
• Application Number:
  US09/550,172
• Time in Patent Office: 949 Days
• Field of Search: 345/10, 345/11, 348/73, 348/78, 348/50, 348/207, 348/68
• US Class Current: 345/10
• CPC Class Codes: G06F 11/327 Alarm or error message display
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G09G 2320/04 Maintaining the quality of display appearance
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: H04N 5/445 for displaying additional information H04N5/50 takes precedence
• CPC Class Codes: H04N 5/58 in dependence upon ambient light

Abstract

A system formed by a device on the CCD or CMOS above a terminal display and a display screen setting program is disclosed. This system will set the working environment of a VDT user to an optimum value. The images of the VDT user and the peripheral environment are captured. Then the working environment of the VDT user, the illumination of the environment of the VDT user, the fatigue of the VDT user, and the distance between the VDT user and a display are determined. The brightness, contrast, colors and clearness of the font of the terminal display are adjusted and controlled automatically according to the illumination of the environment of the VDT user and the fatigue of the VDT user. When the illumination of the environment of the VDT user, the fatigue of the VDT user, and the distance between the VDT user and a display has been over a predetermined condition, an alarm will emit to inform the user. The fatigue and tightness of eyes of a VDT user is reduced effectively so that the eyes of user are well protected.

Claims

1. A method for protecting eyes through screen displaying setting, wherein every time period, a CCD or CMOS camera captures images of a VDT user and the working environment of the VDT user, then the illumination of the environment of the VDT user, the fatigue of the VDT user, and the distance between the VDT user and a display are determined;

the brightness, contrast, colors and clearness of the font of the terminal display are adjusted and controlled automatically according to the illumination of the environment of the VDT user and the fatigue of the VDT user;

when the illumination of the environment of the VDT user, the fatigue of the VDT user, and the distance between the VDT user and a display has been over a predetermined condition, an alarm will emit to inform the user.

2. The method as claimed in claim 1, wherein the use time of the VDT user with the blinking frequency of eyes and the sizes of the pupil of VDT user serve to decide the fatigue state;

if the system has a digital image camera, then blinking frequency is used;

if the system has a pupil camera, then the size of the pupil is used.

3. The method as claimed in claim 1, wherein the brightness, contrast, colors and clearness of the font of the terminal display are varied according to the fatigue of eyes.

4. The method as claimed in claim 1, wherein the system emits an alarm to the user to improve the states, the way for alarming includes to display characters in a dialog box, emits alarming voice, etc.;

furthermore, the VDT user can set a condition of shutting off in force.