公开(公告)号：US10553144B2

公开(公告)日：2020-02-04

申请号：US15661417

申请日：2017-07-27

Applicant: JOLED INC.

Inventor： Shinya Tsuchida

IPC: G09G3/20 ,  G09G5/02 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

Abstract: Provided is a correction method performed in a display device including a matrix of pixels each including an organic EL element that emits light in accordance with a luminance signal. The method includes: obtaining, in advance, first correction data for correcting the luminance signal; transforming the first correction data into second correction data smaller in data size than the first correction data; and correcting the luminance signal using the second correction data. The first and second correction data respectively include first color correction data for correcting first sub pixel luminance, second color correction data for correcting second sub pixel luminance, and third color correction data for correcting third sub pixel luminance. In the transforming, the first correction data is transformed such that a data reduction amount of the second color correction data is greater than a data reduction amount of the first color correction data.

公开(公告)号：US10283044B2

公开(公告)日：2019-05-07

申请号：US15347891

申请日：2016-11-10

Applicant: JOLED INC.

Inventor： Shinya Tsuchida

IPC: G09G3/30 ,  G09G3/3233

Abstract: A display device correction method is provided for correcting luminance unevenness in a display device including pixels, which are arranged in a matrix and include light-emitting elements that emit light according to a luminance signal. The method includes obtaining in advance first correction data, which includes correction data components each corresponding to a different one of the pixels and is for correcting the luminance signal. The method also includes transforming the first correction data into second correction data by decomposing the correction data components included in the first correction data into frequency components, and removing a predetermined frequency component among the frequency components. The method further includes correcting the luminance signal using the second correction data.

公开(公告)号：US10283048B2

公开(公告)日：2019-05-07

申请号：US15790591

申请日：2017-10-23

Applicant: JOLED INC.

Inventor： Shinya Tsuchida

IPC: G09G3/20 ,  G09G3/3233

Abstract: A display device correction method includes: obtaining, in advance, first correction data for correcting a luminance signal; performing a first transform including applying an error diffusion method to the first correction data to transform the first correction data into second correction data; performing a second transform including thinning, via a predetermined thinning method, the second correction data by removing at least one but not all of the correction data components to transform the second correction data into third correction data; performing a third transform including interpolation, via a predetermined interpolation method, using pixel data components included in the third correction data, to transform the third correction data into fourth correction data; and correcting the luminance signal using the fourth correction data. In the first transform, based on the predetermined thinning method and interpolation method, the transform is performed such that the second correction data matches the fourth correction data.

公开(公告)号：US10217408B2

公开(公告)日：2019-02-26

申请号：US15347877

申请日：2016-11-10

Applicant: JOLED INC.

Inventor： Shinya Tsuchida

IPC: G09G3/3233

Abstract: A method of correcting a display device, including pixels that are arranged in a matrix and have light-emitting elements that emit light according to a luminance signal, is provided. The method includes obtaining in advance first correction data, which includes correction data components each corresponding to a different one of the pixels and is for correcting the luminance signal. The method also includes transforming the first correction data into second correction data, by (i) reconfiguring the correction data components by propagating an error component of each of the correction data components to surrounding pixels of a corresponding one of the pixels, and (ii) performing bit reduction on the correction data components that have been reconfigured. The method further includes correcting the luminance signal using the second correction data.

公开(公告)号：US09121914B2

公开(公告)日：2015-09-01

申请号：US14238227

申请日：2013-02-22

Applicant: JOLED INC.

Inventor： Takayuki Shimamura ,  Yoshiki Hayashida ,  Akinori Shiota ,  Shinya Tsuchida

IPC: G01R31/44 ,  H01L51/56 ,  H01L21/66 ,  H01L51/52 ,  G09G3/32

CPC classification number: G01R31/44 ,  G09G3/3208 ,  H01L22/14 ,  H01L51/5203 ,  H01L51/56 ,  H01L2251/568

Abstract: A defect detection method for an organic EL element having a first electrode, a second electrode, and a functional layer and a light-emission layer disposed between the electrodes, including: applying a first voltage, between the electrodes, that, when the organic EL element includes, between the electrodes, a defective portion that is a potential cause of non-light emission of the light-emission layer, reduces electrical resistance of a first portion, of the functional layer, corresponding to the defective portion and makes the organic EL element detectable as a dark spot, whose light-emission layer does not emit light; and after applying the first voltage, applying a second voltage between the electrodes and detecting whether or not the organic EL element is the dark spot, the second voltage, when the organic EL element does not include the defective portion, causing the light-emission layer to emit light.

Abstract translation: 一种具有第一电极，第二电极和功能层的有机EL元件的缺陷检测方法和设置在电极之间的发光层，包括：在电极之间施加第一电压，当有机EL 在电极之间包括作为发光层的非发光的潜在原因的缺陷部分，降低与缺陷部分相对应的功能层的第一部分的电阻，并使有机EL 元素作为暗点检测，其发光层不发光; 并且在施加第一电压之后，在电极之间施加第二电压并检测有机EL元件是否是暗点，第二电压，当有机EL元件不包括缺陷部分时，使发光层 发光。