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Display Apparatus With Symmetric Diffusion 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: 2015-03-18
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 Apparatus With Symmetric Diffusion Film
  • Display Apparatus With Symmetric Diffusion Film
  • Display Apparatus With Symmetric Diffusion Film

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0049] First embodiment-display device with touch panel and symmetric diffusion film

[0050] Figure 3A with Figure 3B The schematic diagrams of two display devices according to the first embodiment of the present invention are shown. In the first embodiment, a transmissive liquid crystal display is simply drawn for example 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 panel 311 to provide light to the touch panel 311, and an upper polarizer 314 A lower polarizing plate 315 and a symmetric diffusion film (SDF) 317 are arranged on one side of the upper polarizing plate 314. The touch panel 311 is disposed between the upper polarizing plate 314 and the lower polarizing plate 315. And the upper polarizing plate 314 and the lower polarizing plate 315 are orthogonal to each other to provide a cross-polarization effect. The difference in the structure of the display device 31 or...

no. 2 example

[0058] Second embodiment-display device with touch panel, symmetric diffusion film and collimated light backlight module

[0059] Figure 6A with Figure 6B Schematic diagrams of two display devices according to the second embodiment of the present invention are shown. In the second embodiment, a transmissive liquid crystal display is also simply drawn for the description of the embodiment.

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

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Abstract

A display apparatus at least comprises a touchscreen, and a symmetric diffusion film (SDF) disposed above the touchscreen. The SDF comprises at least two different materials, including a first material mixed with a second material. The first material has a first refractive index and the second material has a second refractive index, and the first refractive index is different from the second refractive index.

Description

Technical field [0001] The invention relates to a display device with a symmetrical diffusion film, and more particularly to a display device with a touch panel and a symmetrical diffusion film, so that 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 to facilitate user interaction with them as input devices. The touch panel is an electronic display panel with a touch sensor, which can detect the touch position in the touch sensing area or 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) touch. Each technology has its unique advantages a...

Claims

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Application Information

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