Display unit, display panel, display device and optical information storage device

    公开(公告)号:US10783345B2

    公开(公告)日:2020-09-22

    申请号:US15980605

    申请日:2018-05-15

    摘要: Disclosed are a display unit, a display panel, a display device and an optical information storage device. The display unit comprises a photochromic thin film and an optical filter thin film on a side of the photochromic thin film. The photochromic thin film presents a colored state under an irradiation of a first preset light, and presents a transparent state under an irradiation of a second preset light. A wavelength range of the first preset light is different from that of the second preset light. The optical filter thin film is a one-way optical filter thin film that is substantially transparent to lights coming from a photochromic thin film side, and functions as an optical filter to lights coming from a side opposite the photochromic side to allow the first preset light to pass through and to reflect lights of other wavelengths.

    Capacitive touch screen and bending judgment method therefor, and display device

    公开(公告)号:US10216025B2

    公开(公告)日:2019-02-26

    申请号:US15679070

    申请日:2017-08-16

    摘要: The present disclosure provides a capacitive touch screen and a bending judgment method therefor, and a display device. The touch screen includes: a substrate; touch sensing electrodes and touch drive electrodes located on the substrate; and a touch chip electrically connected with the touch sensing electrodes and touch drive electrodes, and configured to apply a driving signal to the touch drive electrodes, detect a capacitance value of each touch sensing electrode, and when the capacitance values of a part of the touch sensing electrodes adjacent to each other, the number of which is equal to or greater than a preset number, are changed, and a difference in capacitance value between the touch sensing electrodes with changed capacitance values is less than a predetermined value, to determine a bending state of the touch screen based on capacitance value change information of the touch sensing electrodes with changed capacitance values.