A method for fitting a threshold curve for evaluating a black matrix, an evaluation method for a black matrix

A technology of threshold curve and black matrix, which is applied in the field of black matrix evaluation to achieve the effect of improving accuracy

Active Publication Date: 2022-07-01
BEIJING BOE DISPLAY TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a variety of black matrix widths may have a visual macroscopic effect, making the dark lines appearing on the display panel

Method used

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  • A method for fitting a threshold curve for evaluating a black matrix, an evaluation method for a black matrix
  • A method for fitting a threshold curve for evaluating a black matrix, an evaluation method for a black matrix
  • A method for fitting a threshold curve for evaluating a black matrix, an evaluation method for a black matrix

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] As shown in FIG. 1 , the display panel includes a plurality of sub-pixels 10 . In order to avoid mutual interference of light emitted by the sub-pixels 10 and avoid light leakage, a black matrix is ​​arranged between any adjacent sub-pixels 10 .

[0035] example, such as Figure 1a and Figure 1b As shown, the black matrix is ​​in the shape of a grid as a whole, and the area enclosed by each small grid is the area where one sub...

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Abstract

Embodiments of the present invention provide a method for fitting a threshold curve for evaluating a black matrix and a method for evaluating a black matrix, which relate to the field of display technology and can improve the accuracy of evaluating a black matrix. A method for fitting a threshold curve for evaluating a black matrix, comprising the width of a plurality of shading bars and the width of sub-pixels that are included in the black matrix of each sample and extending along the length direction or width direction of each sample, to obtain Contrast sensitivity value; the shading strips all have N widths, N≥2; the width of the shading strips in at least some samples is not exactly equal to the width of the shading strips in other samples; the spatial frequency values ​​corresponding to the samples under different observation distances are obtained; The visible or invisible condition of the dark line of each sample under the same ambient brightness and corresponding observation distance is marked in the coordinate system with the spatial frequency as the abscissa and the contrast sensitivity value as the ordinate; fit the threshold curve to make the mark visible or invisible. The coordinate points of the visible case are located on both sides of the threshold curve.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a method for fitting a threshold curve for evaluating a black matrix, and a method for evaluating a black matrix. Background technique [0002] In order to improve the aperture ratio of the display panel, the black matrix between different sub-pixels is designed to have at least two different widths, which are repeated periodically. However, various black matrix widths may bring about a macroscopic effect on the vision, making the display panel appear dark lines alternately between light and dark. Therefore, in the layout design of the display panel, the risk of the occurrence of the dark line needs to be evaluated. SUMMARY OF THE INVENTION [0003] Embodiments of the present invention provide a method for fitting a threshold curve for evaluating a black matrix and a method for evaluating a black matrix, which can improve the accuracy of evaluating a black matrix...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/00
Inventor 王永垚苏秋杰高玉杰朱宁缪应蒙
Owner BEIJING BOE DISPLAY TECH CO LTD
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