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Image display unit and method of correcting brightness in image display unit

A technology of image display and brightness, applied in static indicators, instruments, etc., to achieve the effect of reducing storage capacity and improving uniformity correction ability

Inactive Publication Date: 2006-03-29
SONY CORP
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Problems solved by technology

The greater the distance from the driver, the greater the voltage drop caused by the wiring load becomes, and there is a voltage difference between being close to and being far from the driver, so even if the same voltage is applied from the driver, the applied voltage Vgc is different in each pixel will not be the same, and thus will not obtain a uniform light emission

Method used

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  • Image display unit and method of correcting brightness in image display unit
  • Image display unit and method of correcting brightness in image display unit
  • Image display unit and method of correcting brightness in image display unit

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Embodiment Construction

[0058] Preferred embodiments are described in detail below with reference to the accompanying drawings.

[0059] FIG. 7 shows the entire structure of an image display unit according to an embodiment of the present invention. Figure 8 The structure of the display panel 1 in this image display unit is schematically shown. Figure 9 The structure of the pixel portion of the display panel 1 is schematically shown. In this embodiment, an image display unit using an FED as the display panel 1 is described as an example.

[0060]As shown in Figure 7, the image display unit includes: an A / D (analog / digital) conversion part 10, which is used to convert an analog image signal into a digital signal, so as to output the digital signal; an image signal processing part 11, which is used for digital The image signal is subjected to various signal processing such as image quality adjustment; the column direction driving voltage generation section 13 and the row direction selection voltage ...

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Abstract

While the memory amount is reduced through minimizing correction data prepared in advance, the capability of uniformity correction can be improved, compared to a related art. Correction data for correcting display unevenness between pixels for representative pixel points is stored. Correction data for pixels except for the representative pixel points is calculated by interpolation. The representative pixel points are arranged with a higher density in a pixel region with relatively finer display unevenness.

Description

[0001] The present invention contains subject matter related to Japanese Patent Application JP2004-274794 filed in Japan Patent Office on September 22, 2004 and Japanese Patent Application JP2005-149280 filed in Japan Patent Office on May 23, 2005, which are hereby incorporated by reference in their entirety content. technical field [0002] The present invention relates to a display unit comprising a plurality of pixels and controlling the display brightness level on a pixel-by-pixel basis, such as an image display unit suitable for FED (Field Emission Display), EL (Electroluminescence) display, liquid crystal display unit, etc. , and a method of correcting brightness in an image display unit. Background technique [0003] In recent years, display units have become thinner and flatter. As a flat panel display part (flat panel display, hereinafter simply referred to as a display) for a display unit, for example, a display using a field emission cathode has been developed. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/22
Inventor 三浦悟司本江寿史山本洋介目黑刚也
Owner SONY CORP
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