Liquid crystal display
1 Assignment
0 Petitions
Accused Products
Abstract
An emphasis converter 52 compares the image data of the current vertical period with the image data of the previous vertical period and controls the input image data to a liquid crystal display panel 4 based on the emphasis conversion parameters stored in tables of ROMs 3a to 3c so as to achieve accelerated drive. A microcomputer 38 is able to realize stable control of selecting emphasis conversion parameters by adding hysteresis to the detected temperature from a thermistor 37 even when the detected temperature fluctuates up and down crossing the temperature threshold.
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Citations
34 Claims
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1. (canceled)
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2. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel; and
a write-gray scale level determining section for determining emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by dividing an input image data of one vertical period into pieces of data for the multiply divided areas of the liquid crystal display panel and implementing emphasis conversion of each piece of divided input image data in accordance with a combination of the detected temperature of the divided area of the liquid crystal display panel in which the input image data is displayed and gray scale level transitions from a previous vertical period to a current vertical period. - View Dependent Claims (3, 4, 5, 6)
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7-9. -9. (canceled).
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10. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel;
a control section for generating a control signal by calculating an average of the detected temperatures at the divided areas of the liquid crystal display panel; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing emphasis conversion of an input image data of a current vertical period in accordance with the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period. - View Dependent Claims (22, 23, 24, 25, 33, 34)
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11. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel;
a control section for generating a control signal by calculating a maximum of the detected temperatures at the divided areas of the liquid crystal display panel; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing emphasis conversion of an input image data of a current vertical period in accordance with the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period.
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12. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel;
a control section for generating a control signal by calculating a minimum of the detected temperatures at the divided areas of the liquid crystal display panel; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing emphasis conversion of an input image data of a current vertical period in accordance with the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period.
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13. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel;
a control section for generating a control signal by producing a histogram of the detected temperatures at the divided areas of the liquid crystal display panel; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing an emphasis conversion of an input image data of a current vertical period in accordance with the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period.
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14. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel;
a control section for generating a control signal by calculating a weighted average of the detected temperatures at the divided areas of the liquid crystal display panel; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing an emphasis conversion of an input image data of a current vertical period in accordance with the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period. - View Dependent Claims (15, 16, 17)
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18. (canceled)
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19. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel;
a characteristic quantity detecting section for detecting a characteristic quantity of an input image data;
a control section for generating a control signal by sampling only the detected temperatures of predetermined divided areas, from the detected temperatures of all the divided areas of the liquid crystal display panel, based on the detected characteristic quantity by the characteristic quantity detecting means section; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing an emphasis conversion of the input image data of a current vertical period in accordance with the control signal generated by the control section and th gray scale level transitions of the input image data from a previous vertical period to the current vertical period.
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20. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting the temperatures of multiply divided areas of the liquid crystal display panel;
an installed state detecting section for detecting an installed state of the device;
a control section for generating a control signal by sampling only the detected temperatures of predetermined divided areas, from the detected temperatures of all the divided areas of the liquid crystal display panel, based on the detected installed state from the installed state detecting section; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing an emphasis conversion of an input image data of a current vertical period in accordance with the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period.
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21. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting temperatures of multiply divided areas of the liquid crystal display panel;
a user command detecting section for detecting a command input from a user;
a control section for generating a control signal by sampling only the detected temperatures of predetermined divided areas, from the detected temperatures of all the divided areas of the liquid crystal display panel, based on the detected installed state from the installed state detecting section; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing an emphasis conversion of an input image data of a current vertical period in accordance with the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period.
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26. A liquid crystal display for image display using a liquid crystal display panel, comprising:
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a temperature detector for detecting a temperature of a device interior;
a control section for generating a control signal by implementing a hysteresis process with regard to the detected temperature from the temperature detector; and
a write-gray scale level determining section for determining an emphasis converted data that compensates for an optical response characteristic of the liquid crystal display panel, by implementing an emphasis conversion of an input image data of a current vertical period using emphasis conversion parameters determined based on the control signal generated by the control section and gray scale level transitions of the input image data from a previous vertical period to the current vertical period. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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Specification