Claims
- 1-40 (Cancelled)
- 41. An image display apparatus displaying an image on a passive light modulation part including a light source, the apparatus comprising:
a video signal input part inputting a video signal; and a light source control part controlling a brightness of said light source, wherein said video signal input part and said light source control part are connected to each other via a high-pass filter.
- 42. The image display apparatus according to claim 41, wherein a signal to be inputted to said high-pass filter is generated in accordance with said video signal.
- 43. An image display apparatus displaying an image on a passive light modulation part including a light source, the apparatus comprising:
a high-pass filter to which a signal for dynamically controlling a brightness of said light source is inputted; an addition part adding a signal outputted from said high-pass filter to a reference light adjustment control signal generated based on the light-emitting efficiency of said light source; and a light source control section controlling the brightness of said light source in accordance with a signal outputted from said addition part.
- 44. The image display apparatus according to claim 43, wherein a signal to be inputted to said high-pass filter is generated in accordance with said video signal.
- 45. An image display apparatus displaying an image on a passive light modulation part including a light source, the apparatus comprising:
a high-pass filter to which a signal for controlling a brightness of said light source is inputted; an addition part adding a reference light adjustment control signal with a fixed value to a signal outputted from said high-pass filter; and a light source control section controlling the brightness of said light source in accordance with a signal outputted from said addition part, wherein said reference light adjustment control signal is determined such that when a signal identical to said reference light adjustment control signal is outputted from said addition part, the light-emitting efficiency of said light source becomes maximum.
- 46. The image display apparatus according to claim 45, further comprising:
a control data generation part generating a signal for controlling the brightness of said light source, in accordance with a video signal to be inputted to said image display apparatus.
- 47. An image display method of displaying an image on a passive light modulation part including a light source, the method comprising:
a video signal input step of inputting a video signal; a light source control step of controlling a brightness of said light source, and a low frequency removing step of removing low frequency components, between said video signal input step and said light source control step.
- 48. The image display method according to claim 47, wherein in said low frequency removing step, the low frequency components of a signal generated in accordance with said video signal is removed.
- 49. An image display method of displaying an image on a passive light modulation part including a light source, the method comprising:
a low frequency removing step of removing low frequency components of a signal for dynamically controlling a brightness of said light source; an addition step of adding a signal obtained as a result of said low frequency removing step to a reference light adjustment control signal generated based on the light-emitting efficiency of said light source; and a light source control step of controlling the brightness of said light source in accordance with a signal obtained as a result of said addition step.
- 50. The image display method according to claim 49, wherein in said low frequency removing step, the low frequency components of a signal generated in accordance with said video signal is removed.
- 51. An image display method of displaying an image on a passive light modulation part including a light source, the method comprising:
a low frequency removing step of removing low frequency components of a signal for controlling a brightness of said light source; an addition step of adding a reference light adjustment control signal with a fixed value to a signal obtained as a result of said low frequency removing step; and a light source control step of controlling the brightness of said light source in accordance with a signal obtained as a result of said addition step, wherein said reference light adjustment control signal is determined such that when a signal identical to said reference light adjustment control signal is obtained as a result of said addition step, the light-emitting efficiency of said light source becomes maximum.
- 52. The image display method according to claim 51, further comprising:
a control data generation step of generating a signal for controlling the brightness of said light source, in accordance with a video signal to be inputted.
Priority Claims (4)
Number |
Date |
Country |
Kind |
128602/1999 |
May 1999 |
JP |
|
128603/1999 |
May 1999 |
JP |
|
209946/1999 |
Jul 1999 |
JP |
|
209947/1999 |
Jul 1999 |
JP |
|
Parent Case Info
[0001] This is a Divisional Application of U.S. application Ser. No. 09/743,324, filed Jan. 9, 2001, which is the National Stage of International Application No. PCT/JP00/02938, filed May 9, 2000.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09743324 |
Jan 2001 |
US |
Child |
10837628 |
May 2004 |
US |