What is claimed is:
1. A display device comprising:
a display unit which displays an image and can be remotely controlled by a remote controller; and
a control unit which magnifies a predetermined information included in the image displayed by the display unit, according to a distance between the remote controller and the control unit.
2. The display device according to claim 1, wherein the control unit comprises a distance measuring unit which measures the distance, when receiving a predetermined signal from the remote controller.
3. The display device according to claim 1, wherein the control unit comprises a distance deciding unit which decides whether the distance exceeds a specified value, when receiving a predetermined signal from the remote controller.
4. The display device according to claim 1, wherein the control unit magnifies the predetermined information according to control information attached to the image displayed by the display unit.
5. The display device according to claim 1, wherein the control unit magnifies a whole image displayed by the display unit.
6. The display device according to claim 1, wherein the control unit magnifies character information included in the image displayed by the display unit.
7. The display device according to claim 1, wherein the control unit magnifies subtitle information included in the image displayed by the display unit.
8. The display device according to claim 1, wherein the control unit magnifies an operation icon included in the image displayed by the display unit.
9. The display device according to claim 1, wherein the control unit manages video contents together with display attribute information, and magnifies the predetermined information included in the video contents according to the display attribute information.
10. The display device according to claim 1, wherein the control unit resets a magnifying process according to an external instruction.
11. The display device according to claim 1, wherein the control unit resets a magnifying process, when the display unit is operated by an operating means other than the remote controller.
12. A method of magnifying and displaying, comprising:
displaying an image on a display unit; and
magnifying a predetermined information included in a displayed image, according to a distance between the displaying unit and a person who watches the image.
13. The method according to claim 12, wherein the magnifying magnifies the predetermined information according to control information attached to the image displayed by the display unit.
14. A method of magnifying and displaying, comprising:
displaying an image within a certain display area on a display screen of a display unit; and
reducing the certain display area to magnify the displayed image, according to a distance between the displaying unit and a person who watches the image.
15. The method according to claim 14, further comprising:
magnifying subtitle information included in the displayed image according to the distance.
16. The method according to claim 14, further comprising:
magnifying an operation icon included in the displayed image according to the distance.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Process for the preparation of a (dialkylphosphono)alkyl (meth)acrylate corresponding to the formula:
12
in which:
R is a hydrogen or a methyl group
R1 is an alkyl group having 1 to 6 carbon atoms
n is an integer from 1 to 3;
comprising the reaction of an alkyl (meth)acrylate A of formula
13
in which:
R is a hydrogen atom or a methyl group;
R is an alkyl group having from 1 to 4 carbon atoms
with a dialkylphosphonated alcohol B of formula:
14
in which R1 and n have the meanings given above;
in the presence of a catalyst comprising zirconium acetylacetonate.
2. Process according to claim 1, in which the dialkylphosphonated alcohol B in which n is equal to 1 is prepared by reaction of an alkyl phosphite C of formula:
15
in which R1 has the same meaning as above;
with formaldehyde.
3. Process according to claim 1 or claim 2, in which R1 contains from 1 to 3 carbon atoms.
4. Process according to one of the preceding claims, in which R is the methyl group.
5. Process according to one of the preceding claims, in which R is the methyl or ethyl group.
6. Process according to one of the preceding claims, in which the reaction of the alkyl (meth)acrylate A with the dialkylphosphonated alcohol B is carried out at a temperature of 85 C. to 130 C., preferably of 95 C. to 120 C.
7. Process according to one of the preceding claims, in which the reaction of the alkyl (meth)acrylate A with the dialkylphosphonated alcohol B is carried out in accordance with a (meth)acrylic ester A: phosphonated alcohol B ratio of between 1.4 and 5 and preferably of between 2 and 4.