Writing device having light emitting diode display panel
AssigneeHon Hai Precision Industry Co., Ltd.
InventorPO-CHOU CHEN
Life of this patent
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Abstract
A writing device includes a writing pen and a light emitting diode display panel. The writing pen emits three different-colored optical signals. The light emitting diode display panel includes a control module and a plurality of pixels. Each pixel includes first, second and third light sources, first, second and third light sensing elements, and a touch element. The first to third light sensing elements are configured to receive the three optical signals and generate first, second and third selective signals, respectively. The touch element generates a control signal when touched by the writing pen. According to the three selective signals and the control signal, the control module selectively turns on the first light source, the second light source, and the third light source.
Claims16
A writing device, comprising:
- a writing pen, comprising a pen holder and an optical lens located at one end of the pen holder, the writing pen being configured to emit a first optical signal of a first color, a second optical signal of a second color and a third optical signal of a third color;
- a light emitting diode display panel, comprising:
- a control module;
- a plurality of pixels arranged in a matrix, each pixel comprising a first light source for generating light of the first color, a second light source for generating light of the second color, a third light source for generating light of the third color, a first light sensing element, a second light sensing element, a third light sensing element and a touch element, the first light sensing element being configured to receive the first optical signal and generate a first selective signal, the second light sensing element being configured to receive the second optical signal and generate a second selective signal, the third light sensing element being configured to receive the third optical signal and generate a third selective signal, the touch element generating a control signal when touched by the writing pen, according to the first selective signal, the second selective signal, the third selective signal and the control signal, the control module selectively turning on the first light source, the second light source, and the third light source.
A light emitting diode display panel, comprising:
- a control module;
- a plurality of pixels arranged in a matrix, each pixel comprising a first light source for generating light of first color, a second light source for generating light of second color, a third light source for generating light of third color, a first light sensing element, a second light sensing element, a third light sensing element, and a touch element, the first light sensing element being configured to receive a first optical signal and generate a first selective signal, the second light sensing element being configured to receive a second optical signal and generate a second selective signal, the third light sensing element being configured to receive a third optical signal and generate a third selective signal, the touch element generating a control signal when touched by a writing pen, according to the first selective signal, the second selective signal, the third selective signal and the control signal, the control module selectively turning on the first light source, the second light source, and the third light source.
Dependencies are inferred from the claim text.