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Method and device for prolonging service life of display device with luminance compensation function

A display device and brightness compensation technology, applied in static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of increasing system costs, reduce the number of write times, and improve the effects of unoptimized use

Inactive Publication Date: 2012-12-12
HOLTEK SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But higher capacity flash memory will increase the cost of the system

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  • Method and device for prolonging service life of display device with luminance compensation function
  • Method and device for prolonging service life of display device with luminance compensation function
  • Method and device for prolonging service life of display device with luminance compensation function

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Embodiment Construction

[0060] In order to make the object, technical solution and advantages of the present invention clearer, a method and device for prolonging the service life of a display device with brightness compensation function according to the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0061] The technical feature of the present invention is that the accumulation of the luminance data in the volatile memory 104 takes a period of time to be carried to the high bit, so the higher the higher bit data changes more slowly, the lower the lower bit data changes faster, if the high and low bits can be respectively stored in the non In different areas of the volatile memory 105, the number of writes per unit capacity of the high-order area is reduced, and the number of w...

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Abstract

The invention discloses a method and a device for prolonging the service life of a display device with luminance compensation function. The device comprises an m-bit volatile memory and an n-bit nonvolatile memory for storing luminance accumulated values; and the method at least comprises the following steps of: selecting a p value as a virtual bit value; dividing the n-bit nonvolatile memory into an h-bit high-bit block and k1 low-bit blocks in turn, wherein each low-bit block comprises (j+p) bits; writing data from the mth bit to the (m-h+1)th bit in the m-bit luminance accumulated value into the h-bit high-bit block; and writing j-bit data from the (m-h)th bit to the [m-(h+j)+1]th bit in the m-bit luminance accumulated value and p-bit virtual bits into the (j+p)-bit first low-bit block, wherein m, n, j, p, h and k1 are integers more than 0. The invention provides a novel data storage mode to reduce the writing times of unit capacity of the nonvolatile memory without increasing the storage capacity in an equal ratio.

Description

technical field [0001] The present invention relates to a method and device for prolonging the service life of a display device with brightness compensation function, in particular to a method and device for prolonging the service life of a display device with brightness compensation function by dividing a non-volatile memory. means for implementing the method. Background technique [0002] General displays, such as fluorescent displays (Field Emission Display, FED), will dim the brightness due to aging after being used for a period of time, and because each color of each point on the display lights up for a different time, the degree of their aging also varies. It will be different. In order to maintain the brightness and color uniformity of the picture, the brightness must be compensated for the color of each point. [0003] Such as Figure 1A As shown, it discloses a display system 10, which includes a brightness compensation device 101, which works together with a drive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00G09G5/10
Inventor 陈宗奎沈俊林刘益成管振廷
Owner HOLTEK SEMICON