4 results about "Color blind" patented technology

This invention provides a myopia screening device. The first end of the housing is designated as the detection end for testing the subject's eyes. A visual target screen, a screening camera, and an optical path assembly are all housed within the housing. The visual target screen is located on one side wall of the housing, the optical path assembly is positioned between the detection end and the visual target screen, and the screening camera is located at the second end of the housing. The screening camera captures a light and shadow image of the subject's pupil. A processor processes and analyzes the light and shadow image captured by the screening camera. An input device communicates with the processor and inputs the image seen by the subject on the visual target screen into the processor. This invention enables not only refractive error testing but also visual acuity testing and color blindness / color weakness testing. Furthermore, this invention can estimate the subject's visual acuity based on the refractive error test results, generate a corresponding estimated visual target based on the estimated visual acuity, and quickly complete the visual acuity test, effectively shortening the visual acuity screening time.

The present disclosure discloses a content display method and apparatus, an electronic device, and a computer-readable storage medium. In the present disclosure, after RGB information is converted into target color space information according to a color blindness type, brightness adjustment is performed on a brightness value of the target color space information according to an original brightness value to acquire adjusted target color space information, and the loss degree of the brightness value in the adjusted target color space information is reduced, such that abnormal brightness of content to be displayed is avoided when said content is displayed according to the adjusted target color space information.

Provided are an electronic device and a control method therefor. This electronic device comprises: a display; a memory storing instructions; and at least one processor. The instructions, when executed individually or collectively by the at least one processor, instruct the electronic device to: on the basis of information on a plurality of objects included on an execution screen of an application, identify whether color correction for the plurality of objects is needed for a color-weak user; if color correction for the plurality of objects is identified to be needed, provide, on the display, a UI for the color correction for the plurality of objects; and perform the color correction for the plurality of objects according to a user input inputted through the UI.

A display apparatus according to the present disclosure comprises an image display unit, a backlight unit, and at least one processor. The backlight unit comprises: a substrate; and a plurality of dimming blocks arranged in a plurality of rows and a plurality of columns on the substrate, wherein each of the dimming blocks includes a red LED, a green LED, and a blue LED. In a color vision deficiency mode, the at least one processor may: acquire, on the basis of image data, color difference values between a plurality of image blocks of an image corresponding to the plurality of dimming blocks; determine, on the basis of the color difference values between the plurality of image blocks, at least one of a current weight for a red LED of one dimming block among the plurality of dimming blocks, a current weight for a green LED of the dimming block, and a current weight for a blue LED of the dimming block; and control, on the basis of the image data and the determined current weight, current supplied to at least one of the red LED of the dimming block, the green LED of the dimming block, and the blue LED of the dimming block.