display device

A display device and display module technology, applied to static indicators, instruments, etc., can solve the problem of low utilization rate of light energy, achieve the effect of improving utilization rate and reducing waste

Active Publication Date: 2018-12-14
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light energy utilization rate of the liquid crystal display in the prior art is relatively low

Method used

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Embodiment Construction

[0053] As mentioned in the background art, the liquid crystal display in the prior art has low light energy utilization.

[0054] The inventor’s research found that this is because the liquid crystal display includes two viewing modes, single viewing and multiple viewing, and after the diffusion film in the liquid crystal display is completed, its parameters cannot be changed, making the liquid crystal display work When the viewing angle range is a fixed value, and the brightness is the same everywhere in the viewing angle range, in order to expand the application range of the liquid crystal display, the viewing angle range of the liquid crystal display in the prior art is generally suitable for multi-person viewing mode, resulting in When the liquid crystal display is applied to a single person for viewing, all the light emitted by the backlight module cannot be effectively used, resulting in a waste of light energy, and thus the light energy utilization rate of the liquid crysta...

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Abstract

Embodiments of the invention disclose a display apparatus. The display apparatus comprises a display module, a backlight module located below the display module, a light beam convergence module located between the display module and the backlight module, a light beam expansion module located between the light beam convergence module and the display module and a first switch module controls state switching of the light beam expansion module. The light beam expansion module comprises a first state which possesses a scattering effect on light emitted by the light beam convergence module and a second state which has no scattering effect on the light emitted by the light beam convergence module. By using the display apparatus provided in the invention, according to a watching mode (a single watching mode and a multi-user watching mode) of a user, light emitted by the backlight module is concentrated to a user watching direction so that an utilization rate of the light emitted by the backlight module is increased and light energy wastes are reduced.

Description

Technical field [0001] The present invention relates to the field of display technology, and in particular to a display device. Background technique [0002] Such as figure 1 As shown, the liquid crystal display in the prior art not only includes a display module 01 and a backlight module 02 located below the display module 01, but also includes a diffusion film 03 located between the display module 01 and the backlight module 02 , To direct the light emitted by the backlight module 02 to a specified direction to expand the viewing angle of the liquid crystal display, so that the brightness of the display screen of the liquid crystal display is uniform. However, the light energy utilization rate of the liquid crystal display in the prior art is low. Summary of the invention [0003] In order to solve the above technical problems, an embodiment of the present invention provides a display device to increase the utilization rate of light emitted by the backlight module in the displa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 野村良太陈岩
Owner LENOVO (BEIJING) LTD
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