Display screen, electronic device, and light intensity detection method
AssigneeLenovo (Beijing) Limited
InventorsShaopeng PENG, Nan LIN
Life of this patent
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Abstract
A display screen includes a first glass substrate including a color filter region and a light shielding region. The light shielding region includes a transparent region at a first position of the light shielding region. The display screen further includes a second glass substrate including a display control circuit. The display control circuit controls display statuses of the color filter region. The display screen also includes a light intensity sensor at a second position of the second glass substrate. The first position and the second position satisfy a preset relative positional correspondence to allow light transmitted through the first position to reach the light intensity sensor.
Claims12
A display screen comprising:
- a first glass substrate including a color filter region and a light shield, wherein the light shield includes a transparent region at a first position of the light shield;
- a second glass substrate including a display control circuit, wherein the display control circuit controls display statuses of the color filter region;
- a liquid crystal layer sandwiched between the first glass substrate and the second glass substrate, wherein the liquid crystal layer includes a plurality of liquid crystal cells;
- and
- a light intensity sensor at a second position of the second glass substrate,
- wherein the first position and the second position satisfy a preset relative positional correspondence to allow light transmitted through the transparent region at the first position to reach the light intensity sensor without passing through the liquid crystal cells and without being reflected.
A light intensity detection method comprising:
- generating an induced electric current by using a light intensity sensor to detect a light intensity of ambient light passing through a transparent region at a first position of a light shield of a first glass substrate of a display screen, the light intensity sensor being at a second position of a second glass substrate of the display screen that corresponds to the first position;
- converting the induced electric current into a voltage signal;
- and
- determining a light intensity of the ambient light according to the voltage signal,
- wherein the first position and the second position satisfy a preset relative positional correspondence to allow the ambient light transmitted through the transparent region at the first position to reach the light intensity sensor without passing through liquid crystal cells of a liquid crystal layer sandwiched between the first glass substrate and the second glass substrate, and without being reflected.
Dependencies are inferred from the claim text.