Display screen structure and device integrated with solar cell function, and preparation method

Abstract

The invention relates to a display screen structure and a display device integrated with a solar cell function, and a preparation method. The display screen structure integrated with the solar cell function comprises a transparent solar cell unit for absorbing polarized light in a first direction and a display unit emitting polarized light in a second direction, wherein the transparent solar cellunit is arranged above the display unit, and the first direction and the second direction are perpendicular to each other. Compared with the existing display screen structure, the display screen structure in the invention is characterized in that polarization direction of the light absorbed by the transparent solar cell unit is perpendicular to the polarization direction of the light emitted by the display unit, the light emitted by the display unit can pass through the transparent solar cell unit almost without loss, that is, the transparent solar cell unit does not absorb the light emitted by the display unit, so that even if the transparent solar cell unit is arranged above the display unit, the power consumption of the display screen is not increased, and display characteristics like brightness, viewable angle and response time are not affected.

Description

technical field [0001] The invention relates to the fields of display screen technology and photovoltaic technology, in particular to a display screen structure with integrated solar cell functions, a display device and a preparation method. Background technique [0002] With the popularization of mobile electronic devices, the performance requirements of users are increasing day by day, and the energy consumption is also increasing. The increase speed of lithium battery capacity cannot meet the needs of use gradually. Organic light-emitting diode (OLED) display technology has the advantages of self-luminescence, high contrast, wide viewing angle, fast response speed, and low energy consumption. As a new generation of display technology to replace liquid crystal display (LCD), it can alleviate the The contradiction between performance requirements and battery life of mobile electronic devices. In addition, some research works hope that by integrating solar cells on the scre...

AI Technical Summary

Problems solved by technology

However, this structure requires that the entire structure of the unit unit has relatively high transparency, and the light utilization rate of the solar cell unit is largely restricted by the transmittance of the transparent electrode in the display unit and the shading of the TFT circuit

In addition, in this structure, there cannot be a reflective structure between the display unit and the solar cell unit, so the light emitted by the display unit to the rear will be absorbed by the solar cell, reducing the utilization rate of display light

[0004] The second is to place the solar cell unit above the display unit, such as the WysipsCrystal photovoltaic module developed by Sunpartner Technologies of France. The design principle is to add a series of spaced strip solar cells between the display screen and the outer glass, and process the outer glass A series of corresponding lens shapes, through lens technology, sunlight or artificial light is collected by the semi-cylindrical lens onto the solar cell strip, while the light emitted by the display screen is transmitted from the gap, so as to realize solar charging and screen Display dual functions, but the disadvantage of this design is that the strip structure blocks a part of the display area, which will reduce the display resolution, and the lens structure will also bring about the problem of limited viewing angle; the existing Chinese invention patent application specification CN105070218A is also disclosed Provided is a solar display screen, wherein the transparent solar film is formed on the OLED display module, the incident light irradiates the transparent solar film through the cover plate, and the light emitted by the organic light-emitting layer passes through the transparent solar film and the transparent solar film in sequence. Although the transparent solar film is not covered and can effectively absorb ambient light, it is also easy to absorb the light emitted by the OLED display module, resulting in a decrease in the display brightness of the OLED display module.

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