Temperature compensating device used for display

A technology of a temperature compensation device and a temperature compensation unit, which is applied to static indicators, instruments, color signal processing circuits, etc., and can solve problems such as image distortion and a gamma curve shift.
CN101320545AInactive Publication Date: 2008-12-10NOVATEK MICROELECTRONICS CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
NOVATEK MICROELECTRONICS CORP
Publication Date
2008-12-10
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

In order to solve the deflection problem of the gamma curve of a display caused by temperature change, the present invention provides a temperature compensation device which is used in a display for compensating the gamma curve of the display. The temperature compensation device comprises a temperature sensor, a storage unit and a temperature compensation unit. The temperature sensor is used for detecting the environmental temperature in the display; the storage unit is used for storing a plurality of numerical data; the temperature compensation unit is coupled with the temperature sensor and the storage unit, selects a numerical datum from a plurality of numerical data according to the environmental temperature detected by the temperature sensor, and transforms an original image datum into a compensation image datum through the selected numerical datum.
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Description

technical field

[0001] The invention relates to a circuit device for a display, in particular to a temperature compensation device for a display, which is used for compensating a gamma curve of the display according to the ambient temperature. Background technique

[0002] Liquid crystal displays have the advantages of light weight, low power consumption, and low radiation, so they have been widely used in various portable information products in the market, such as notebook computers (notebooks) and personal digital assistants (personal digital assistants, PDAs). The working principle of the liquid crystal display is to convert the external video signal into a digital signal for image processing, such as gamma correction, image size adjustment, color difference and other image effects, and then convert the digital signal into an analog voltage signal and send it to the panel to drive liquid crystal molecules. As far as gamma correction is concerned, the gamma curve charact...

Claims

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