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Display panel

A technology for display panels and display surfaces, which is applied in instruments, semiconductor devices, computing, etc., and can solve the problem of obtaining user-controlled three-dimensional positions without optical methods.

Inactive Publication Date: 2012-05-09
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] True detection of the 3D position of user-controlled objects is not obtained optically as far as is known

Method used

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Examples

Experimental program
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no. 1 example

[0070] Figure 3a and Figure 3b A first embodiment of the invention is illustrated, which may for example be used in conjunction with the devices disclosed in GB2439118 and GB2439098.

[0071] In this example, one or more sensors 310 are embedded in a TFT substrate of an LCD display panel (but not limited to a TFT substrate of an LCD display panel), wherein the sensors 310 can be rectangular, square, circular, oval, or any Surface shape, with uniform or non-uniform surface photoelectric response, the TFT substrate includes multiple layers, but not limited to Figure 3a The particular device described in , both are related to the spatial distribution of the constituents of the layer and the properties of the constituents of the layer.

[0072] In the example of the first embodiment Figure 3a In the particular configuration described in , one or more sensors 310 are embedded within, for example, a SiO2 layer 306 and then covered by a SiN layer 305 and a SiO2 layer 304 on wh...

Embodiment 2

[0117] Another embodiment of the present invention is in Figure 8a , 8b and 8c, where the unidirectional viewing area on the sensor 310 is generated via an aperture layer 332 similar to layer 331 in FIG. Rectangular, square, circular, elliptical or any shape optically limiting the field of view of sensor 310, the aperture layer has a width W332.

[0118] exist Figure 8aIn this case, the aperture layer 332 is placed directly above the sensor 310 , thereby creating an observation area that receives central incident light relative to the surface of the display panel 100 .

[0119] exist Figure 8b In , the aperture layer 333 is moved to the upper right of the sensor 310 , thereby creating an observation area that mainly receives right-oblique incident light relative to the surface of the display panel 100 .

[0120] exist Figure 8c In , the aperture layer 334 is moved to the upper left of the sensor 310 , thereby creating an observation area that mainly receives left-obli...

Embodiment 3

[0129] Another embodiment of the present invention is in Figure 9 Illustrated in , where a two-way viewing area is created on sensor 310 .

[0130] In this embodiment, the centrally incident light is blocked by layer 335, which constitutes a mask of width W335, which may be rectangular, square, circular, elliptical, or any shape, thus creating a two-way view on sensor 310 area.

[0131] Layer 321 in this embodiment is as described for it in FIG. 3 .

[0132] The role of the central mask formed by layer 335 is to primarily eliminate central incident light 605 while allowing full angular spread of right and left oblique incident light 604 to be incident on sensor 310 . Specifically, three-dimensional detection of the position of scattering / luminescent objects can also be utilized in Figure 5 and Figure 6 obtained using the same technique described in .

[0133] Figure 9 The specific device described in is only an example, and this embodiment is not limited to this exam...

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Abstract

A display panel incorporates the functionality to determine the three dimensional position of a light reflecting or emitting object (400, 401, 410) in front of a display surface (100). An array of sensors (310) is disposed in the panel and provided with optical arrangements such as apertures in masks (321, 331) within the panel. These arrangements prevent light incident normally on the display surface (100) from reaching the sensors (310) but allow obliquely incident light (602, 604) to reach the sensors (310). The object position is determined by analyzing the sensor responses.

Description

technical field [0001] The present invention relates to display panels. The display panel can be used, for example, to detect obliquely incident light on an array of photosensitive regions of integrated TFTs for application to one or more user-controlled pen / fingertip / scattering targets above or below the surface of the display panel 3D detection of the position of . Background technique [0002] US28150913A1 (Carr & Ferrell LLP) [0003] The patent describes a stand-alone optical projection-based design in which an image is projected onto a screen while a camera detects when an illuminated target interacts with the projected image. The camera's field of view allows the user to operate within a range of distances relative to the projected image. However, the entire system has a considerable bulk due to the optical configuration. [0004] WO28065601A2 (Philips Electronics) [0005] This patent describes a hand-held pointing device with directional lighting detected by a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G06F3/041G06F3/0346
CPCH01L27/14627G06F3/0421H01L27/14621H01L27/14678G06F3/0412
Inventor 让·卢克·L·卡斯特塔纳大卫·詹姆斯·蒙哥马利詹姆斯·R·撒克林彼得·J·罗伯特
Owner SHARP KK