Reflective display device and light guide module thereof
A reflective display and light guide module technology, which is applied in identification devices, light guides, optics, etc., can solve the problems of uneven brightness and darkness, small divergence angles, and reduced image quality of display devices, so as to avoid uneven brightness and darkness, reduce Or the effect of uneven light and dark
Pending Publication Date: 2022-05-06
E INK HLDG INC
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Problems solved by technology
Since light-emitting diodes (LEDs) usually have a directional characteristic, the light beams emitted by each light-emitting diode have a small divergence angle, so that it is easy to cause uneven brightness and dark images, thereby reducing the image quality of the display device.
Method used
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[0023] In the following text, in order to clearly present the technical features of this case, the dimensions (such as length, width, thickness and depth) of the elements (such as layers, films, substrates and regions) in the drawings will be enlarged in unequal proportions. Therefore, the description and explanation of the following embodiments are not limited to the dimensions and shapes presented by the elements in the drawings, but should cover the dimensions, shapes and deviations between them caused by actual processes and / or tolerances. For example, the flat surface shown in the drawings may have rough and / or nonlinear characteristics, while the acute angle shown in the drawings may be circular. Therefore, the elements shown in the attached drawings of the invention are mainly used for illustration, not to accurately depict the actual shape of the elements, nor to limit the scope of the patent application of the invention.
[0024] Secondly, the words "about", "approxim...
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Abstract
The invention discloses a reflective display device and a light guide module thereof, and the light guide module is configured on a reflective display panel and comprises a light guide plate and a light shielding body. The light guide plate is provided with a first surface, a second surface opposite to the first surface and optical structures formed on the first surface, the first surface is provided with a display area and an edge area surrounding the display area, and the optical structures are distributed in the display area. The light shielding body is arranged on the first surface and covers the edge area, the light shielding body is provided with an opening, and the opening exposes the display area. Through the optical structure, the light guide module can help the light of the light-emitting element to be uniformly emitted from the light guide plate, and images with non-uniform brightness are reduced or avoided. In addition, the reflective display device comprising the light guide module is also provided.
Description
technical field [0001] The invention relates to a display device, in particular to a reflective display device and a light guide module thereof. Background technology [0002] At present, some display devices have light guide modules to guide the light emitted by the light source, so that the display device can display bright images, which is helpful for users to watch. Most of the above display devices use multiple light emitting diodes (LEDs) as the light source. Since light-emitting diodes (LEDs) usually have directionality characteristics, the light beam emitted by each LED has a small divergence angle, which is easy to cause uneven light and dark images, so as to reduce the image quality of the display device. summary of the invention [0003] The object of the invention is to provide a reflective display device and its light guide module, which helps to make the light exit evenly, so as to reduce or avoid the image of uneven brightness and darkness. [0004] The light guid...
Claims
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Login to View More IPC IPC(8): G02B6/00G09F9/00
CPCG02B6/009G02B6/0023G02B6/0033G09F9/00
Inventor 黄信道温育铨
Owner E INK HLDG INC