Patent ID: 8325128
Filing Date: 2012-12-04
Classification: G09G

Abstract:
1. A driving circuit provided in a display device for displaying an image, the display device including a light source, a light amount of which is controllable, and a display panel including an element, the optical transmissivity of which is controllable, wherein the driving circuit includes a first processing portion which controls the optical transmissivity of the element in accordance with a grayscale of the image to be displayed on the display panel, wherein a response speed of the element is slower in a first grayscale range and is faster in a second grayscale range of a whole grayscale range available for displaying the image, the response speed being fast when a temperature in a vicinity of the element is high and being slow when the temperature in the vicinity of the element is low, the driving circuit performing a control processing operation of changing a range of the grayscale to be used for displaying the image based on the temperature in the vicinity of the element, the control processing operation changing the range of the grayscale to be used for displaying the image so that the whole grayscale range including the first grayscale range is used when the temperature in the vicinity of the element is higher than or equal to a reference temperature, and a partial grayscale range including the second grayscale range is used when the temperature in the vicinity of the element is below the reference temperature, and to change the grayscale range from the whole grayscale range to the partial grayscale range, the driving circuit performs a first processing operation of compressing a grayscale value of a display data of the image and changing the optical transmissivity of the element by making the optical transmissivity correspond to the compressed grayscale value of the display data.