Touch device and touch display panel
A technology for touch devices and display panels, applied to lighting devices, components of lighting devices, instruments, etc., can solve problems such as poor touch interpretation accuracy and achieve the best touch accuracy effect
Active Publication Date: 2012-10-24
AU OPTRONICS CORP
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Problems solved by technology
[0004] However, when the touch object performs multi-touch on the touch-sensitive display panel 100 (such as Figure 1B two black dots shown in ), if the first photosensitive device 140 does not receive the light L1 from the first point light source 120 on the opposite side and the second photosensitive device 150 does not receive the light from the opposite side When the light L1 of the second point light source 130 is used to judge the correct positions of the two touch points, a misjudgment commonly known as ghost image (ghost image) will occur, which means that the touch display panel 100 may Figure 1B The white point in the screen is mistaken for the correct touch point, resulting in poor accuracy of touch interpretation
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[0046] Figure 2A is a schematic top view of a touch display panel according to an embodiment of the present invention, and Figure 2B for along Figure 2A A partial cross-sectional schematic diagram drawn on line AA' of Figure 3A for Figure 2A An enlarged schematic top view of the mask and the first detection device according to an embodiment is shown. Please also refer to Figure 2A , Figure 2B and Figure 3A , the touch display panel 2000 of this embodiment includes a display panel 2100 and a touch device 2200 . The touch device 2200 is disposed above the display panel 2100, wherein the touch device 2200 includes a first light source 2210, a second light source 2220, a first detection device 2230, a second detection device 2240 and a mask 2251, 2253. The second light source 2220 is arranged vertically to the first light source 2210 . The first detection device 2230 is disposed on the opposite side of the first light source 2210 . The second detection device 2240 ...
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The invention relates to a touch device comprising a first light source, a second light source, a first detecting device, a second detecting device and a first shielding cover, wherein the second light source is arranged perpendicular to the first light source; the first detecting device is arranged at the side opposite to the first light source; the second detecting device is arranged at the side opposite to the second light source; the first shielding cover is arranged between the first detecting device and the first light source and light rays emitted by the first light source along a first direction and a second direction can pass through the first shielding cover to be detected by the first detecting device, and an acute included angle is formed between the first direction and the second direction. The invention also provides a touch display panel.
Description
technical field [0001] The present invention relates to an electronic device and a display panel, and in particular to a touch device and a touch display panel. Background technique [0002] Figure 1A A schematic top view of single-touch for a traditional touch-sensitive display panel, and Figure 1B then Figure 1A A schematic top view of the touch-sensitive display panel performing multi-touch. Please refer to Figure 1A The touch display panel 100 includes a display panel 110 , a plurality of first point light sources 120 , a plurality of second point light sources 130 , a plurality of first photosensitive devices 140 and a plurality of second photosensitive devices 150 . [0003] exist Figure 1A Among them, the second point light source 130 is arranged perpendicular to the first point light source 120, and the first photosensitive device 140 is arranged on the opposite side of the first point light source 120, and the second photosensitive device 150 is arranged on th...
Claims
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IPC IPC(8): G06F3/042F21V14/00
Inventor 简智伟蔡卲瑜
Owner AU OPTRONICS CORP