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Display device with symmetrical diffuser film

A technology of display device and diffusion film, applied in the input/output process of data processing, input/output of user/computer interaction, instruments, etc.

Active Publication Date: 2017-11-03
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A display device with a touch sensor of the embodiment uses a symmetrical diffusion film to solve the problem of luminance distribution mura, thereby greatly improving the image quality presented on the display device

Method used

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  • Display device with symmetrical diffuser film
  • Display device with symmetrical diffuser film
  • Display device with symmetrical diffuser film

Examples

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Effect test

no. 1 example

[0049] First Embodiment - Display Device with Touch Panel and Symmetric Diffusion Film

[0050] Figure 3A and Figure 3B A schematic diagram of two display devices according to the first embodiment of the present invention is shown. In the first embodiment, a transmissive liquid crystal display is simply shown for embodiment description.

[0051] The display device 31 or 31' of the first embodiment includes a touch screen 311, a backlight module 312 disposed under the touch screen 311 to provide light to the touch screen 311, and an upper polarizer 314. , a lower polarizer 315 , and a symmetrical diffusion film (SDF) 317 are disposed on one side of the upper polarizer 314 . The touch panel 311 is disposed between the upper polarizer 314 and the lower polarizer 315 . And the upper polarizer 314 and the lower polarizer 315 are orthogonal to each other to provide a cross-polarization effect. The difference in the structure of the display device 31 or 31' lies in the locatio...

no. 2 example

[0058] Second Embodiment - Display Device with Touch Panel, Symmetric Diffusion Film and Collimated Light Backlight Module

[0059] Figure 6A and Figure 6B A schematic diagram of two display devices according to the second embodiment of the present invention is shown. In the second embodiment, the transmissive liquid crystal display is also simply shown for description of the embodiment.

[0060] The display device 61 or 61' of the second embodiment includes a touch screen (touch screen) 611, a collimated light backlight module 612 disposed under the touch screen 611 to provide light to the touch screen 611, an upper polarizer 614, The lower polarizer 615 and a symmetrical diffuser film (SDF) 617 are disposed on one side of the upper polarizer 614 . The touch panel 611 is disposed between the upper polarizer 614 and the lower polarizer 615 . And the upper polarizer 614 and the lower polarizer 615 are orthogonal to each other to provide an orthogonal polarization effect. ...

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Abstract

The invention discloses a display device with a symmetrical diffusion film, which at least includes a touch panel and a symmetrical diffusion film (symmetric diffusion film, SDF) disposed on the touch panel. The symmetrical diffusion film includes at least two different materials, including a A first material and a second material, and the first material has a first refractive index, and the second material has a second refractive index, wherein the first refractive index is not equal to the second refractive index.

Description

technical field [0001] The invention relates to a display device with a symmetrical diffusion film, and in particular to a display device with a touch panel and a symmetrical diffusion film, so that the light has a uniform brightness distribution. Background technique [0002] Touch panels have been widely used in electronic products, such as handheld electronic products (mobile phones, personal digital assistants, etc.) or tablet computers and many other related products, as input devices for users to interact with them. The touch panel is an electronic display panel with touch sensors, which can detect the touch position in the touch sensing area or in the display area when a touch occurs. Generally, panel touch can be performed by fingers, hands or an object such as a stylus. [0003] The four most common touch sensing technologies include resistive touch, infrared touch, capacitive touch and surface acoustic wave (SAW, surface acoustic wave) touch. Each technology has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01
CPCG06F3/0412
Inventor 柴崎稔桥本和幸春山良孝
Owner INNOLUX CORP