Abstract: A display test apparatus includes a measuring apparatus and a calculating device connected to the measuring apparatus. The measuring apparatus provides a sample pixel value to a first display device including a first display panel, measures a first color coordinate value of an image displayed by the first display panel in response to the sample pixel value. The calculating device generates a first parameter of the first display panel in response to the first color coordinate value, generates a target color coordinate value in response to the sample pixel value, and generates a first mapping table in response to the first color coordinate value, the first parameter and the target color coordinate value.

Abstract: A display test apparatus includes a measuring apparatus and a calculating device connected to the measuring apparatus. The measuring apparatus provides a sample pixel value to a first display device including a first display panel, measures a first color coordinate value of an image displayed by the first display panel in response to the sample pixel value. The calculating device generates a first parameter of the first display panel in response to the first color coordinate value, generates a target color coordinate value in response to the sample pixel value, and generates a first mapping table in response to the first color coordinate value, the first parameter and the target color coordinate value.

Abstract: A display controller includes a lookup table configured to store a plurality of reference data and an interpolation circuit configured to calculate a corrected datum by performing correction on an image datum based on the plurality of reference data. The interpolation circuit determines whether the image datum is less than a reference value, calculates the corrected datum using a first interpolation method when the image datum is less than the reference value, and calculates the corrected datum using a second interpolation method different from the first interpolation method when the image datum is equal to or greater than the reference value. When the corrected datum is calculated using the first interpolation method, the interpolation circuit calculates the corrected datum based on a first reference datum, which corresponds to a product of the image datum and the reference value, among the plurality of reference data.

Abstract: A display controller includes a lookup table configured to store a plurality of reference data and an interpolation circuit configured to calculate a corrected datum by performing correction on an image datum based on the plurality of reference data. The interpolation circuit determines whether the image datum is less than a reference value, calculates the corrected datum using a first interpolation method when the image datum is less than the reference value, and calculates the corrected datum using a second interpolation method different from the first interpolation method when the image datum is equal to or greater than the reference value. When the corrected datum is calculated using the first interpolation method, the interpolation circuit calculates the corrected datum based on a first reference datum, which corresponds to a product of the image datum and the reference value, among the plurality of reference data.

Abstract: A liquid crystal display (LCD) device comprises an image signal processing unit that selectively compensates a current frame upon determining that it is part of a sequence of changing images as opposed to a sequence of still images. The image signal processing device comprises an encoding/decoding unit that generates comparison frame decoding data by encoding and decoding comparison frame data, generates reference frame decoding data by encoding and decoding reference frame data, and a determining unit that sets a comparison range based on effective bits in the comparison frame decoding data and effective bits in the reference frame decoding data, and compares the comparison frame decoding data and the reference frame decoding data within the comparison range.

Abstract: An image encoding device includes a first compression unit, a second compression unit, a third compression unit and an output unit. The first compression unit generates first compressed data by compressing first data associated with a reference block in an input image. The second compression unit generates second compressed data by compressing second data associated with a current compressing block in the input image when the current compressing block corresponds to a first pattern. The current compressing block is included in the reference block. The third compression unit generates third compressed data by compressing the second data when the current compressing block corresponds to one of a plurality of second patterns. The output unit outputs compressed data based on the first compressed data, the second compressed data and the third compressed data.

Abstract: An image encoding device includes a first compression unit, a second compression unit, a third compression unit and an output unit. The first compression unit generates first compressed data by compressing first data associated with a reference block in an input image. The second compression unit generates second compressed data by compressing second data associated with a current compressing block in the input image when the current compressing block corresponds to a first pattern. The current compressing block is included in the reference block. The third compression unit generates third compressed data by compressing the second data when the current compressing block corresponds to one of a plurality of second patterns. The output unit outputs compressed data based on the first compressed data, the second compressed data and the third compressed data.

Abstract: In an image data processing device, a selection unit receives a block of original image data of a current image, a block of compressed and reconstructed image data of the current image, and a block of compressed and reconstructed data of a previous image that precedes the current image. A comparison unit compares the block of compressed and reconstructed image data of the current image with the block of compressed and reconstructed data of the previous image. An output unit, in the event that the comparison of the comparison unit results in a match, outputs the block of original image data of the current image as first output data, and, in the event that the comparison of the comparison unit does not result in a match, outputs the block of compressed and reconstructed data of the previous image as the first output data.

Abstract: A liquid crystal display (LCD) device comprises an image signal processing unit that selectively compensates a current frame upon determining that it is part of a sequence of changing images as opposed to a sequence of still images. The image signal processing device comprises an encoding/decoding unit that generates comparison frame decoding data by encoding and decoding comparison frame data, generates reference frame decoding data by encoding and decoding reference frame data, and a determining unit that sets a comparison range based on effective bits in the comparison frame decoding data and effective bits in the reference frame decoding data, and compares the comparison frame decoding data and the reference frame decoding data within the comparison range.

Abstract: In an image data processing device, a selection unit receives a block of original image data of a current image, a block of compressed and reconstructed image data of the current image, and a block of compressed and reconstructed data of a previous image that precedes the current image. A comparison unit compares the block of compressed and reconstructed image data of the current image with the block of compressed and reconstructed data of the previous image. An output unit, in the event that the comparison of the comparison unit results in a match, outputs the block of original image data of the current image as first output data, and, in the event that the comparison of the comparison unit does not result in a match, outputs the block of compressed and reconstructed data of the previous image as the first output data.