TW202102987A - Illuminated touchpad - Google Patents

Abstract

An illuminated touchpad includes a sensing plate, a first plated light-guiding structure, a second plated light-guiding structure, a plurality of first light sources, and a plurality of second light sources. The first plated light-guiding structure is disposed on a sensing surface of the sensing plate. The second plated light-guiding structure is dispsoed on the first plated light-guiding structure. A light-out surface of the first plated light-guiding structure and a bottom surface of the second plated light-guiding structure adhere to each other at the peripheries thereof. The first plated light-guiding structure has a plurality of first light-in areas, to which the plurality of first sources are disposed correspondingly. The second plated light-guiding structure has a plurality of second light-in areas, to which the plurality of second sources are disposed correspondingly.

Description

Illuminated touchpad

The present invention relates to a touch panel, in particular to a touch panel with light-emitting function.

Traditional notebook computers use keyboards, mice, and touchpads as input interfaces. The touchpad is arranged on the system side of the notebook computer, adjacent to the physical keyboard. The uppermost surface of the traditional touch panel is usually a monochromatic opaque sensor panel, and the user's finger slides on the opaque sensor panel to control the mouse cursor. Monochromatic opaque sensor panels seem to be relatively monotonous, which is not in line with the current trend of consumer electronics products. New laptops can use light-transmitting materials to make touch-sensitive panels, and set light-emitting diodes on the edges of the light-transmitting sensor panels to provide illumination; however, such touch-sensitive panels with color light-emitting effects can usually only be based on light-emitting diodes. The body provides monochromatic lighting, which is still somewhat monotonous. In addition, just stacking the light guide structure on the touch panel may cause poor sensing effect of the touch panel and affect the touch function.

In view of the problems in the prior art, one object of the present invention is to provide a light-emitting touch panel, which includes a plurality of plate-shaped light guide structures, stacked with a sensor board to provide a backlight effect, and through the sensor board and The plate-shaped light guide structure is fixed to eliminate or suppress the influence of the plate-shaped light guide structure on the sensing stability of the sensing plate.

The light-emitting touch panel according to the present invention includes a sensing panel, a first plate-shaped light guide structure, a second plate-shaped light guide structure, a plurality of first light sources and a plurality of second light sources. The sensing board has a sensing surface. The first plate-shaped light guide structure is disposed on the sensing surface and has a first bottom surface, a first light-emitting surface opposite to the first bottom surface, and a plurality of first light-incident regions, the first bottom surface being directly opposite The sensing surface and the first light emitting mask have a first periphery. The second plate-shaped light guide structure is disposed above the first plate-shaped light guide structure and has a second bottom surface, a second light-emitting surface opposite to the second bottom surface, and a plurality of second light-incident regions. The two bottom surfaces are facing the first light-emitting surface and have a second circumference, and the second circumference is glued to the first circumference. The plurality of first light sources are respectively arranged corresponding to the plurality of first light incident regions. The plurality of second light sources are respectively arranged corresponding to the plurality of second light incident regions. Thereby, the light emitted by the plurality of first light sources can be guided by the first plate-shaped light guide structure to pass through the second plate-shaped light guide structure to exit the light-emitting touch panel, and the plurality of second light sources The emitted light can be guided by the second plate-shaped light guide structure to exit the light-emitting touch panel. By controlling the plurality of first light sources and the plurality of second light sources to selectively emit light, the light-emitting touch panel can present various backlight effects. In addition, the first plate-shaped light guide structure and the second plate-shaped light guide structure are fixed in a ring-shaped adhesive manner, which has the effect of fixing the structure and avoiding the influence of the light transmission path, and can effectively eliminate or inhibit the first plate The influence of the light guide structure and the second plate-shaped light guide structure on the sensing stability of the sensing plate.

The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

Please refer to Figure 1 and Figure 3. According to an embodiment, a light-emitting touch panel 1 includes a sensor panel 12, a first plate-shaped light guide structure 14, a second plate-shaped light guide structure 16, a plurality of first light sources 18, and a plurality of second light sources 20 and a controller 26 (shown as a block in the figure); for ease of description, each component is drawn in the figure in exaggerated scale. The sensing board 12, the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 are stacked in a vertical direction D1 (indicated by a double-headed arrow in FIG. 1). Wherein, the sensing board 12 has a sensing surface 12a. The first plate-shaped light guide structure 14 is disposed on the sensing surface 12a and has a first bottom surface 14a, a first light-emitting surface 14b opposite to the first bottom surface 14a, and a plurality of first light-incident regions 14c. 14a is facing the sensing surface 12a, and the first light-emitting surface 14b has a first periphery 14d (shown by diagonal lines the range on the first light-emitting surface 14b). The second plate-shaped light guide structure 16 is disposed above the first plate-shaped light guide structure 14 and has a second bottom surface 16a, a second light-emitting surface 16b opposite to the second bottom surface 16a, and a plurality of second light-incident regions 16c , The second bottom surface 16a is directly opposite to the first light-emitting surface 14b and has a second periphery 16d (the area on the second bottom surface 16a is indicated by diagonal lines). The first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 are glued to the second circumference 16d through the first circumference 14d to be bonded together. The plurality of first light sources 18 are respectively arranged corresponding to the plurality of first light incident areas 14c, so that the light emitted by each first light source 18 can enter the first plate-shaped light guide structure 14 through the corresponding first light incident area 14c. The plurality of second light sources 20 are respectively arranged corresponding to the plurality of second light incident areas 16c, so that the light emitted by each second light source 20 can enter the second plate-shaped light guide structure 16 through the corresponding second light incident area 16c. The controller 26 is electrically connected to the sensing board 12, the plurality of first light sources 18, and the plurality of second light sources 20 (shown in bold dashed lines in FIG. 1), so that the controller 26 can be sensed and used via the sensing board 12 The user touches the light-emitting touch panel 1 and can control the plurality of first light sources 18 and the plurality of second light sources 20 to selectively emit light to produce the backlight effect of the light-emitting touch panel 1.

Please also refer to Figures 4 and 5. Furthermore, in this embodiment, the first plate-shaped light guide structure 14 includes a first light guide sheet 142 and a first mask sheet 144, and the first mask sheet 144 is located between the first light guide sheet 142 and the first light guide sheet 142 and the first mask sheet 144. Between two plate-shaped light guide structures 16. The first light guide sheet 142 has a plurality of first light guide portions 1422, which are located on the bottom surface 142a of the first light guide sheet 142 (toward the sensing surface 12a). The plurality of first light guide portions 1422 guide the light emitted from the plurality of first light sources 18 and enter the first light guide sheet 142 to travel toward the top surface 142b of the first light guide sheet 142, and then pass through the first shield The cover sheet 144 emits the first plate-shaped light guide structure 14; wherein the traveling path of the light is indicated by arrows in FIG. 5. In this embodiment, the first light guide portion 1422 is a fine structure (shown as an area with a diagonal line in FIGS. 2 to 4; which is shown in dotted lines in FIG. 4), such as but not limited to embossed The method is formed on the bottom surface 142a (for example, a plurality of cone-shaped depressions are formed); the applicable structure and size can be implemented through the general light guide plate reflective structure dot technology, and will not be repeated. In addition, in practice, the first light guide portion 1422 can also be implemented with other structures capable of guiding (or reflecting) light, such as coating or arranging a reflective material on the bottom surface 142a. In this embodiment, the first light guide portion 1422 is used to generate a specific backlight profile, which is in the shape of a number; in practice, the first light guide portion 1422 may also include a letter, number, symbol, graphic or a combination thereof The shape. Each first light source 18 corresponds to a first light guide portion 1422.

The first mask sheet 144 has a plurality of light-transmitting portions 144a (represented by a dashed frame in FIG. 5), respectively corresponding to the plurality of first light-guiding portions 1422. The light transmitting portion 144a is passed through to limit the light guided by the corresponding first light guiding portion 1422. In this embodiment, the light-transmitting portion 144a has the same contour as the corresponding first light-guiding portion 1422, so the first plate-shaped light-guiding structure 14 can provide a backlight with a clearer contour. In addition, in this embodiment, the first mask sheet 144 includes a light-transmitting substrate 1442, a light-colored ink layer 1444 disposed on a surface 1442a of the light-transmitting substrate 1442 facing the second plate-shaped light guide structure 16, and A dark ink layer 1446 is disposed on the light ink layer 1444. The dark ink layer 1446 has a plurality of openings 1446 a corresponding to the plurality of first light guide portions 1422. The opening 1446a, the portion corresponding to the dark ink layer 1446, and the portion corresponding to the light-transmitting substrate 1442 together form a corresponding light-transmitting portion 144a. Logically, the dark ink layer 1446 can be regarded as an opaque structure layer, and the light color ink layer 1444 can be regarded as a light permeable structure layer, so it can be regarded as light passing through the first mask sheet 144 only through the light transmitting portion 144a. Therefore, in practice, the dark ink layer 1446 can also be implemented by other non-transparent structural layers (such as opaque coatings), and the light-colored ink layer 1444 can also be implemented by other translucent structural layers (such as transparent or semi-transparent coatings). ) Implementation. In addition, in this embodiment, the light-colored ink layer 1444 can reduce the light intensity of the first plate-shaped light guide structure 14, so that the backlight can be softened, and the light-transmitting area and the non-light-transmitting area of the first mask sheet 144 can be reduced. The contrast prevents the user from easily observing the outline of the first mask sheet 144 (for example, the outline of the light-transmitting portion 144a, the outline of the opening 1446a) from the outside of the light-emitting touch panel 1.

In addition, the first mask sheet 144 further includes an adhesive layer 1448 disposed on a surface 1442b of the transparent substrate 1442 facing the first light guide sheet 142, and disposed on the dark ink layer 1446 (or logically regarded as being disposed A ring-shaped adhesive 1450 on the surface 1442a of the transparent substrate 1442 facing the second plate-shaped light guide structure 16); wherein the distribution area of the ring-shaped adhesive 1450 is equivalent to the first circumference 14d (as shown in FIG. 2) . The first mask sheet 144 is glued to the top surface 142 b of the first light guide sheet 142 via the adhesive layer 1448. In principle, the adhesive layer 1448 fills the space between the first mask sheet 144 and the first light guide sheet 142. The first mask sheet 144 is glued to the second periphery 16d via the ring glue 1450 (as shown in FIG. 3). In practice, the ring-shaped adhesive 1450 can also be formed on the second periphery 16d of the second plate-shaped light guide structure 16, and the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 can also be formed. Bonding. In addition, in this embodiment, the adhesive layer 1448 can be made of optical glue to allow light to pass through. The ring glue 1450 can also be optical glue or general glue.

In the first plate-shaped light guide structure 14, the upper side of the first mask sheet 144 corresponds to the first light-emitting surface 14b of the first plate-shaped light guide structure 14, and the bottom surface 142a of the first light guide sheet 142 corresponds to the The first bottom surface 14a of a plate-shaped light guide structure 14. A first side surface 142c of the first light guide sheet 142 serves as the plurality of first light incident regions 14c. In addition, the first light guide sheet 142 also includes a plurality of first light-shielding regions 142d (the distribution range of which is shown in FIGS. 2 to 4 by diagonal lines), the plurality of first light-shielding regions 142d and the plurality of first light-incident regions The 14c is staggeredly arranged on the first side surface 142c, and the first light source 18 is directly facing the corresponding first light incident area 14c. In practice, the first light-shielding area 142d can be realized through an opaque paint or tape. The tape can penetrate the edge of the first light guide 142 to realize the first light-shielding area 142d. At this time, the tape may be partially attached. On the bottom surface 142a and the top surface 142b. In practice, the paint or tape has a thickness, but to simplify the diagram, the first shading area 142d is only shown in the figure as a diagonal area. In addition, in this embodiment, the first mask sheet 144 is not used to directly receive the light emitted by the first light source 18 and the second light source 20, so it can also be on the side facing the first light source 18 and the second light source 20. The opaque paint or tape forms an opaque structure; in order to simplify the diagram, the opaque structure is only shown in the figure with a slanted area. In practice, the first light guide sheet 142 and the first mask sheet 144 can also be aligned with the side surfaces and jointly provide the first light incident area 14c and the first light shielding area 142d. In addition, in practice, the side surfaces of the first light guide sheet 142 and the first mask sheet 144 that are not facing the first light source 18 and the second light source 20 (or other light sources) are also formed with opaque paint or tape. The opaque structure will not be described in detail. In addition, an adhesive layer 1424 may be formed on the bottom surface 142 a of the first light guide sheet 142, and the first light guide sheet 142 is glued to the sensing surface 12 a via the adhesive layer 1424. In practice, the adhesive layer 1424 can also be formed on the sensing surface 12a.

Please refer to Figure 1 to Figure 3, Figure 6 and Figure 7. In this embodiment, the second plate-shaped light guide structure 16 includes a second light guide sheet 162 and a second shielding sheet 164. The second light guide sheet 162 is located between the second shielding sheet 164 and the first plate-shaped guide sheet 164. Between the light structure 14. The second light guide sheet 162 has a plurality of second light guide portions 1622 located on the bottom surface 162a of the second light guide sheet 162 (toward the first light emitting surface 14b of the first plate-shaped light guide structure 14). The plurality of second light guide portions 1622 guide the light emitted from the plurality of second light sources 20 and enter the second light guide sheet 162 to travel toward the top surface 162b of the second light guide sheet 162, and then pass through the second shield The cover sheet 164 emits the second plate-shaped light guide structure 16; wherein, the traveling path of the light is indicated by arrows in FIG. 5. In this embodiment, the second light guide portion 1622 is a fine structure (a slanted area is shown in FIGS. 2, 3, and 6; which is shown by a dashed line in FIG. 6), such as but not limited to The embossing method is formed on the bottom surface 162a (for example, a plurality of cone-shaped depressions are formed); the applicable structure, size, and forming method can be implemented through the general light guide plate reflective structure dot technology, and will not be repeated. In addition, in practice, the second light guide portion 1622 can also be implemented with other structures capable of guiding (or reflecting) light, such as coating or arranging a reflective material on the bottom surface 162a. Each second light source 20 corresponds to a second light guide part 1622. In addition, in this embodiment, the second light guide sheet 162 has a plurality of through grooves 1624 to separate the plurality of second light guide portions 1622 and simultaneously separate a plurality of corresponding light guide blocks. The first light guide portion 1622 is used to provide backlight to the corresponding light guide block, and its outline depends on the actual product design, and is not limited to the shape shown in the figure. In this embodiment, different from the first light guide portion 1422, the second light guide portion 1622 reflects the light from the corresponding second light source 20 so that the top surface 162b of the corresponding light guide area all emits light, thereby corresponding to the A whole piece of backlight is generated in the light guide block. In practice, the uniformity of the backlight can be adjusted by designing the second light guide portion 1622 (such as the contour of the distribution area, the distribution density, etc.).

The second mask sheet 164 covers the plurality of through grooves 1624 and has a plurality of light-transmitting portions 164a (represented by a dashed frame in FIG. 7), corresponding to the plurality of second light-guiding portions 1622, respectively. The light transmitting portion 144a is passed through to limit the light guided by the corresponding second light guiding portion 1622. In this embodiment, the light-transmitting portion 164a has approximately the same contour as the corresponding block. In addition, in this embodiment, the second mask sheet 164 includes a light-transmitting substrate 1642, a light-colored ink layer 1644 disposed on a surface 1642a of the light-transmitting substrate 1642 facing away from the first plate-shaped light guide structure 14, and And a dark ink layer 1646 disposed on the light ink layer 1644. The dark ink layer 1646 has a plurality of openings 1646 a corresponding to the plurality of second light guide portions 1622. The opening 1646a, the portion corresponding to the dark ink layer 1646, and the portion corresponding to the light-transmitting substrate 1642 jointly form a corresponding light-transmitting portion 164a. Similarly, logically, the dark ink layer 1646 can be regarded as an opaque structure layer, and the light color ink layer 1644 can be regarded as a light-transmissive structure layer, so it can be regarded as light passing through the second mask sheet only through the light-transmitting portion 164a. 164. Therefore, in practice, the dark ink layer 1646 can also be implemented by other non-transparent structural layers (such as opaque coatings), and the light-colored ink layer 1644 can also be implemented by other translucent structural layers (such as transparent or semi-transparent coatings). ) Implementation. In addition, in this embodiment, the light-colored ink layer 1644 can reduce the light intensity of the second plate-shaped light guide structure 16, which can soften the backlight, and can also reduce the light-transmitting area and the non-light-transmitting area of the second mask sheet 164. The contrast prevents the user from easily observing the outline of the second mask sheet 164 (for example, the outline of the light-transmitting portion 164a, the outline of the opening 1646a) from the outside of the light-emitting touch panel 1.

In addition, the second mask sheet 164 further includes an adhesive layer 1648 disposed on a surface 1642 b of the transparent substrate 1642 facing the second light guide sheet 162. The second mask sheet 164 is glued to the top surface 162b of the second light guide sheet 162 via the adhesive layer 1648. In principle, the adhesive layer 1648 fills the space between the second mask sheet 164 and the second light guide sheet 162. In this embodiment, the adhesive layer 1648 may use optical glue to allow light to pass through.

In the second plate-shaped light guide structure 16, the upper side of the second mask sheet 164 corresponds to the second light-emitting surface 16b of the second plate-shaped light guide structure 16, and the bottom surface 162a of the second light guide sheet 162 corresponds to the first The second bottom surface 16a of the two-plate-shaped light guide structure 16. A second side surface 162c of the second light guide sheet 162 serves as the plurality of second light incident regions 16c. The bottom surface 162 a of the second light guide sheet 162 is bonded to the first plate-shaped light guide structure 14 via a ring-shaped adhesive 1450. In addition, the second light guide sheet 162 further includes a plurality of second light shielding regions 162d (the distribution range of which is shown in FIG. 2, FIG. 3, and FIG. 6 with diagonal lines), the plurality of second light shielding regions 162d and the plurality of second light shielding regions 162d. The light incident areas 16c are staggeredly arranged on the second side surface 162c, and the second light source 20 is directly opposite to the corresponding second light incident areas 16c. Similarly, in practice, the second light-shielding area 162d can be realized through an opaque paint or tape. The tape can pass through the edge of the second light guide sheet 162 to realize the second light-shielding area 162d. In this case, the tape may be Part of it is attached to the bottom surface 162a and the top surface 162b. In practice, the paint or tape has a thickness, but to simplify the diagram, the second shading area 162d is only shown in the figure as a diagonal area. In addition, in this embodiment, the second mask sheet 164 is not used to directly receive the light emitted by the first light source 18 and the second light source 20, so it can also be on the side facing the first light source 18 and the second light source 20. The opaque paint or tape forms an opaque structure; in order to simplify the diagram, the opaque structure is only shown in the figure with a slanted area. In practice, the second light guide sheet 162 and the second mask sheet 164 can also be aligned with the side surfaces and jointly provide the second light incident area 16c and the second light shielding area 162d. In addition, in practice, the side surfaces of the second light guide sheet 162 and the second mask sheet 164 that are not directly facing the first light source 18 and the second light source 20 (or other light sources) can also be formed by light-transmitting paint or tape. The light structure will not be described in detail.

Please refer to Figure 1 to Figure 3. In this embodiment, the light-emitting touch panel 1 further includes a light-transmitting protective cover 28 that is glued to the second light-emitting surface 16b (or second masking sheet 164) to provide a certain degree of protection for the light-emitting touch panel 1 . When using the light-emitting touch panel 1, the user touches the top surface 28a of the light-transmitting protective cover 28 with a finger to perform a touch operation. In practice, the aforementioned glue is transparent but not limited to forming an adhesive layer on the upper surface of the second mask sheet 164, or on the bottom surface 28b of the transparent protective cover 28 (toward the second plate-shaped light guide structure 16) The adhesive layer 29 is realized. In addition, in practice, a light-shielding structure can also be formed on the side of the light-transmitting protective cover 28 facing the light source (such as the first light source 18 and the second light source 20) to prevent light from entering the light-transmitting protective cover 28 therefrom. In addition, in this embodiment, the plurality of first light sources 18 and the plurality of second light sources 20 are disposed on a circuit board 17 (such as but not limited to a flexible circuit board), and are connected to the controller via the circuit board 17 26 Electrical connection. The plurality of first light sources 18 are arranged in a row in a horizontal direction D2 (shown as a double-headed arrow in FIG. 1), the plurality of second light sources 20 are also arranged in a row in the horizontal direction D2, and the horizontal direction D2 is vertical In the vertical direction D1. Moreover, in this embodiment, the plurality of first light incident areas 14c and the plurality of second light incident areas 16c are located on the same side of the light-emitting touch panel 1.

The plurality of first light sources 18 and the plurality of second light sources 20 are alternately arranged in a row. Each first light source 18 is arranged directly opposite to the corresponding first light incident area 14c, and also directly opposite to a second light shielding area 162d. The second light shielding area 162d can shield the light emitted by the first light source 18 from entering the second light guide sheet 162, so that although the first light source 18 is also arranged directly opposite to the second light guide sheet 162, it will not be input to the second light guide sheet 162 Light. Similarly, each second light source 20 is arranged directly opposite to the corresponding second light incident area 16c, and also directly opposite to a first light shielding area 142d. The first light shielding area 142d can shield the light emitted by the second light source 20 from entering the first light guide sheet 142, so that although the second light source 20 is also arranged directly opposite to the first light guide sheet 142, it does not input to the first light guide sheet 142 Light. In addition, in practice, the first light source 18 may include one or more light-emitting units (such as but not limited to light-emitting diode chips) to increase the flexibility of the color design of the backlight; the second light source 20 is also the same and will not be described again.

Please refer to FIGS. 1 to 3, 8 and 9; in FIG. 9, although the cut surface does not pass through the second light incident area 16c and the second light guide portion 1622, for ease of description, the second light incident area 16c and The second light guide portion 1622 is still shown in the figure, and its position is equivalent to its projection position on the cross-section. In this embodiment, a plurality of position sensing regions 122a (represented by dashed lines in FIG. 2) can be defined on the sensing surface 12a, and each position sensing region 122a corresponds to a first light guide portion 1422, a first Two light guide parts 1622, a first light source 18 and a second light source 20. The top surface 28a of the light-transmitting protective cover 28 defines a number of touch areas 28c (shown as separated by dashed lines in FIGS. 2 and 8), respectively corresponding to the position sensing area 122a, that is, the touch area 28c and corresponding positions The projections of the sensing area 122a in the vertical direction D1 overlap. On the other hand, one first light guide part 1422 corresponds to one second light guide part 1622. The projections of the first light guide portion 1422 and the corresponding second light guide portion 1622 in the vertical direction D1 (or the direction perpendicular to the first light-emitting surface 14b and the second light-emitting surface 16b) are staggered, and one group of projections is shown as a dotted line Shown in FIG. 8; thereby, this configuration can effectively suppress the influence of the second light guide portion 1622 on the light guided by the first light guide portion 1422, and even the principle of the light guided by the first light guide portion 1422 The upper part is not affected by the second light guide portion 1622 (wherein, the travel path of the light is indicated by arrows in FIG. 9), so that the backlight formed by the first plate-shaped light guide structure 14 guiding the light emitted by the first light source 18 can be It can be clearly observed by the user from above the light-transmitting protective cover 28. In other words, in this embodiment, the backlight generated by the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 (and the corresponding first light source 18 and the second light source 20) can be presented independently or superimposed. The outline of the backlight generated by a light guide portion 1422 can be kept clear.

In addition, in this embodiment, the light-emitting touch panel 1 further includes a plurality of third light sources 22 and a plurality of fourth light sources 24, which are arranged on the light-emitting touch panel relative to the plurality of first light sources 18 and the plurality of second light sources 20. The other side of control board 1. The first light guide sheet 142 has a plurality of third light guide portions 1426 (shown in FIGS. 2 to 4 as an area with a slanted line; among them, shown in dotted lines in FIG. 4), corresponding to the plurality of third light sources 22; The second light guide sheet 162 has a plurality of fourth light guide portions 1626 (shown in FIG. 2, FIG. 3, and FIG. 6 as an area with slanted lines; among them, shown in dotted line in FIG. 6), corresponding to the plurality of fourth light guide portions Light source 24. In this embodiment, the third light source 22 and the fourth light source 24 are symmetrically arranged with the first light source 18 and the second light source 20. Therefore, other descriptions about the third light source 22 and the fourth light source 24 (including their and the first light guide The relative arrangement relationship of the sheet 142 and the second light guide sheet 162, and the arrangement of the light guide portion, the light incident area and the light shielding area, etc.), please refer directly to the relevant description of the first light source 18 and the second light source 20 above, no other Go into details.

In this embodiment, the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 are provided with light sources (including the first to fourth light sources 18, 20, 22, 24) on both sides, so the sensing surface A plurality of position sensing regions 122b are correspondingly defined on 12a, and a plurality of touch regions 28d are correspondingly defined on the top surface 28a of the transparent protective cover 28, so that the light-emitting touch panel 1 can present a 2×5 array of backlight display effect. The controller 26 can control the first to fourth light sources 18, 20, 22, and 24 to emit light individually to generate different backlight effects. For example, the controller 26 controls one or more second light sources 20 to emit light to produce different backlight effects (for example, the second light sources 20 emit light at intervals to present a checkerboard backlight effect, the second light sources 20 alternately emit light to present a flowing effect, and the second The light source 20 emits light together to present the backlight effect of the entire sheet, and the second light source 20 emits light of different colors to present the backlight effect of rainbow and aurora). For another example, the controller 26 receives position data of a touch implemented on the light-emitting touch panel 1 from the sensor board 12, wherein the touch can be a user touching the top surface 28a of the light-transmitting protective cover 28 with a finger In practice, the position data can be, but not limited to, one of the coordinate data based on the sensing surface 12a in practice. The controller 26 determines which position sensing area 122a, 122b of the plurality of position sensing areas 122a, 122b the touch corresponds to according to the position data, and controls the position sensing area 122a, 122b corresponding to the determined position sensing area 122a, 122b. The first light source 18, the second light source 20, the third light source 22, or the fourth light source 24 emits light.

For another example, the controller 26 controls the first light source 18, the second light source 20, the third light source 22, or the fourth light source 24 corresponding to one of the plurality of position sensing areas 122a, 122b to emit light. Then, the controller 26 receives the position data of a touch implemented on the light-emitting touch panel 1 from the sensor board 12. When the controller 26 determines that the touch falls within the position sensing regions 122a, 122b according to the position data, it outputs a predetermined output corresponding to the position sensing regions 122a, 122b. For example, if the first light guide portion 1422 or the third light guide portion 1426 of the position sensing area 122a, 122b presents the number "9", the controller 26 outputs the value "9" (for example, when the light-emitting touchpad 1 When used in a notebook computer, the controller 26 inputs the value "9" to the notebook computer system; when the light-emitting touchpad 1 is used as the input peripheral of a desktop computer, the controller 26 inputs the value " 9"). When the controller 26 determines according to the position data that the touch does not fall within the position sensing area 122a, 122b, the controller 26 ignores the touch or executes other responses (for example, controlling the first light source according to different designs) 18. The second light source 20, the third light source 22 or the fourth light source 24 emits light to form a backlight with a reminder effect).

In addition, in this embodiment, the sensing board 12 may be a capacitive sensing structure, and the sensing board 12, the first plate-shaped light guide structure 14, the second plate-shaped light guide structure 16 and the light-transmitting protective cover 28 are fixed on At the same time, and in principle, there is only an air layer between the sensing surface 12a and the top surface 28a of the light-transmitting protective cover 28, and it is sealed by the annular glue 1450. These structural configurations are beneficial to the sensing of the sensing board 12. effect. In practice, if the first plate-shaped light guide structure 14, the second plate-shaped light guide structure 16 and the light-transmitting protective cover 28 are all quite flexible, the sensing board 12 can also adopt a resistive sensing structure.

In this embodiment, the light-emitting touch panel 1 is implemented in two rows with a total of 10 backlight blocks, but the implementation is not limited to this. For example, the light-emitting touch panel 1 can be modified to implement a single-row configuration with a total of 5 backlight blocks. In this structure, the first light source 18 and the third light source 22 are alternatively reserved, and the second light source 20 and the fourth light source 24 are also alternatively reserved; the arrangement of the aforementioned first shading area 142d and the second shading area 162d (including the arrangement position , Range, etc.) also need to be modified accordingly to prevent the light emitted by the first light source 18 (or the third light source 22) from directly entering the second light guide sheet 162, and the light emitted by the second light source 20 (or the fourth light source 24) directly Enter the first light guide sheet 142. For another example, the light-emitting touch panel 1 can be modified to include more stacked plate-shaped light guide structures and matched light sources (and form the required light-shielding structure, including light-shielding areas, mask sheets, etc.), so as to display more Multi-row array of backlight display effect. The specific implementation can be realized based on the foregoing description, and will not be described in detail.

In the light-emitting touch panel 1, the first plate-shaped light guide structure 14 is implemented by superimposing the first light guide sheet 142 and the first mask sheet 144, but in practice, the first mask sheet 144 covers the light The structure can also be directly formed on the first light guide sheet 142 (for example, the light color ink layer 1444 and the dark ink layer 1446 are directly formed on the top surface 142b of the first light guide sheet 142) to form a single plate structure. Moreover, in principle, the dark ink layer 1446 is sufficient to achieve the masking effect, and the light ink layer 1444 must also be omitted at this time. In addition, in practice, if there is no need to pass through the light-shading structure (such as the first mask sheet 144) to present a backlight with a clear outline, or when the outline of the backlight needs to be softened, the first mask sheet 144 can also be removed. The foregoing description is also applicable to the second plate-shaped light guide structure 16, and will not be repeated. In addition, when the protective effect of the light-transmitting protective cover 28 is not required, or when the second plate-shaped light guide structure 16 itself has a protective effect (for example, the second light-emitting surface 14b of the second plate-shaped light guide structure 16 is wear-resistant The light-transmitting protective cover 28 can also be removed.

In the light-emitting touch panel 1, the first plate-shaped light guide structure 14 is used to provide a backlight with a digital outline (or the outline of characters, symbols, graphics, and a combination thereof), and the second plate-shaped light guide structure 16 is used to provide area Block-shaped backlight, but not limited to this in practice. For example, the second light guide portion 1622 can also be changed to a design similar to the first light guide portion 1422, so that the corresponding single position sensing regions 122a, 122b (or corresponding single contact regions 28c, 28d) can present two types of characters, Numbers, symbols, graphics or combinations of shapes are backlit. In addition, in practice, the second light guide sheet 162 of the second plate-shaped light guide structure 16 can also be removed from the through groove 1624, and the second light shielding sheet 164 used in combination is also removed, so that adjacent light guides The blocks can produce a partially mixed backlight effect, as shown in Figure 10; among them, the touch areas 28c and 28d are separated by a dotted line, and the backlight range presented by the light guide block is represented by a chain line, which presents adjacent light guides The backlight ranges presented by the zones partially overlap. For example, one light guide area of the second light guide sheet 162 (via the corresponding second light guide portion 1622) guides the red backlight, and the adjacent light guide area (via the corresponding second light guide portion 1622) leads out Green backlight, the two backlights partially overlap to produce yellow backlight. In addition, in the light-emitting touch panel 1, the positions of the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 can also be exchanged; at this time, the light-emitting touch panel 1 can still provide a variety of backlight effects, and The second light guide portion 1622 still has the effect of softening the backlight profile generated by the first light guide portion 1422 (for example, the first mask sheet 144 is removed, and the light guided by the second light guide portion 1622 is not affected by the first cover light The shading effect of the sheet 144).

In addition, in the light-emitting touch panel 1, the first light guide portion 1422 and the corresponding second light guide portion 1622 are in the vertical direction D1 (or in the direction perpendicular to the first light-emitting surface 14b and the second light-emitting surface 16b) The projections are staggered, but the implementation is not limited to this. Please refer to FIG. 11, which shows a superimposed schematic diagram of a first plate-shaped light guide structure 34 and a second plate-shaped light guide structure 36 of a light-emitting touch panel according to another embodiment; A first light guide sheet 342 and a first mask sheet 344 of the first plate-shaped light guide structure 34 are represented by a single rectangular square, and a second light guide sheet 362 and a second light guide sheet 362 of the second plate-shaped light guide structure 36 The mask sheet 364 is represented by a single rectangular square. The structure logic of the first plate-shaped light guide structure 34 and the second plate-shaped light guide structure 36 is similar to the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 of the aforementioned light-emitting touch panel 1. For other descriptions of the plate-shaped light guide structure 34 and the second plate-shaped light guide structure 36, please refer to the related descriptions of the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 and their changes, and will not be repeated. In this embodiment, the second plate-shaped light guide structure 36 is stacked above the first plate-shaped light guide structure 34, and a light-transmitting protective cover (not shown in the figure) is stacked on the second plate-shaped light guide structure 36. Middle), a sensing plate (not shown in the figure) is arranged under the first plate-shaped light guide structure 34, and a plurality of light sources are arranged on the sides of the first plate-shaped light guide structure 34 and the second plate-shaped light guide structure 36 To provide light.

In this embodiment, the first light guide sheet 342 includes a plurality of first light guide portions 3422, and the plurality of first light guide portions 3422 are located on the bottom surface 342a of the first light guide sheet 342; in FIG. 11, the first light guide portion 3422 is located on the bottom surface 342a of the first light guide sheet 342; The hidden outline of the light portion 3422 is shown by a dashed line. For example, the first light guide portion 3422 is implemented with a fine structure (the oblique line indicates its distribution range). The first mask sheet 344 is stacked on the top surface 342b of the first light guide sheet 342 and has a plurality of light-transmitting portions 344a, and the plurality of light-transmitting portions 344a correspond to the plurality of first light-guiding portions 3422, respectively. The second light guide sheet 362 includes a plurality of second light guide portions 3622, and the plurality of second light guide portions 3622 are located on the bottom surface 362a of the second light guide sheet 362; in FIG. 11, the second light guide portion 3622 hides the outline to The dashed line shows that, for example, the second light guide portion 3622 is also implemented with a fine structure (the oblique line indicates its distribution range). The second mask sheet 364 is stacked on the top surface 362b of the second light guide sheet 362 and has a plurality of light-transmitting portions 364a, and the plurality of light-transmitting portions 364a respectively correspond to the plurality of second light guide portions 3622 and respectively correspond to A plurality of light-transmitting parts 344a. Wherein, the contour of the first light guide portion 3422 and the contour of the corresponding second light guide portion 3622 at least partially overlap. In this embodiment, the first light guide part 3422 is in the shape of a number (for example, 1 to 5), and the second light guide part 3622 is a symbol suitable for playing and recording functions (for example, a rightward triangle representing the next song, The shape of the two horizontal bars representing the pause, the left triangle representing the previous song, the dot representing the recording, and the cross representing the fast forward), the outline of the first light guide part 3422 and the corresponding second light guide part The union of the contours of 3622 is the same as the contour of the light-transmitting portion 364a of the second light guide sheet 362. Thereby, the light guided by the first light guide portion 3422 and the corresponding second light guide portion 3622 can effectively pass through the light-transmitting portion 364a corresponding to the second light guide sheet 362 to emit the light-emitting touch panel, so that the use of From the outside of the light-emitting touch panel, a graphic backlight conforming to the contours of the first light guide portion 3422 and the second light guide portion 3622 can be observed. In addition, for the actual display application of the first light guide portion 3422 and the second light guide portion 3622, please refer to the aforementioned light-emitting touch panel 1 in the controller 26 to control the first to fourth light sources 18, 20, 22, 24 to emit light. , Through the first plate-shaped light guide structure 14 and the second plate-shaped light guide structure 16 to provide various backlight patterns and can be fitted with the sensor board 12 to work together, and will not be repeated.

In addition, in addition to providing touch functions, the light-emitting touch panels in the foregoing embodiments can also use the structure itself to provide other functions, such as physical button functions. Please refer to FIGS. 12 to 14, which show a light-emitting touch panel 5 according to another embodiment includes a sensing plate 52, a first plate-shaped light guide structure 54, a second plate-shaped light guide structure 56, a The light-transmitting protective cover 58, a plurality of light sources 60, a controller 62 (shown as a block in the figure), and a structural frame 64; for ease of description, the various components are shown in exaggerated scale in the figure. The first plate-shaped light guiding structure 54 is stacked on the sensing plate 52, the second plate-shaped light guiding structure 56 is stacked on the first plate-shaped light guiding structure 54, and the light-transmitting protective cover 58 is stacked on the second plate. On the light guide structure 56, the plurality of light sources 60 are arranged on both sides of the first plate-shaped light guide structure 54 and the second plate-shaped light guide structure 56, and the controller 62 (shown as a block in FIGS. 13 and 14) and The sensing board 52 and the light source 60 are electrically connected (shown in FIG. 13 and FIG. 14 with a thick dashed line) to control the operation of the sensing board 52 and the light source 60. In this embodiment, the light-emitting touch panel 5 is similar in structure and logic to the light-emitting touch panel 1, so for other descriptions of the light-emitting touch panel 5, please refer to the relevant descriptions of the light-emitting touch panel 1 and its changes, and will not be repeated; Wherein, the plurality of light sources 60 include functions corresponding to the first light source 18 and the second light source 20 of the light-emitting touch panel 1 (the light of the first plate-shaped light guide structure 54 and the second plate-shaped light guide structure 56 are selectively provided), To simplify the description and labeling, the plurality of light sources 60 use the same label.

In addition, in the present embodiment, the structural frame 64 is used to provide support for the light-emitting touch panel 5. In practice, the light-emitting touch panel 5 can be structurally integrated into an electronic device (such as but not limited to a notebook computer). In this embodiment, the structural frame 64 includes an upper cover 642 and a bracket 644. The upper cover 642 has a window 642a. The sensing board 52 is supported on the bracket 644. The transparent protective cover 58 is completely exposed in the window 642a. The second light-emitting surface 56b of the plate-shaped light guide structure 56 faces the window 642a, so the user can observe the second plate-shaped light guide structure 56 from the outside of the light-emitting touch panel 5. As shown in FIG. 14, in this embodiment, the bracket 644 supports a first side 52a of the sensing plate 52, and the sensing plate 52 (together with the first plate-shaped light guide structure 54 and the second plate stacked above it) The light guide structure 56 and the light-transmitting protective cover 58 are vertically deflected relative to the bracket 644 by the first side 52a. In this embodiment, the light-emitting touch panel 5 further includes a switch 66, which is disposed under a second side 52b of the sensing board 52 relative to the first side 52a, so that the sensing board 52 can have the first side 52a relative to the support The frame 644 is deflected downward to trigger the switch 66; for example, the user presses the part of the transparent protective cover 58 corresponding to the second side 52b. After the user no longer presses, the sensing board 52 (and the components superimposed thereon) can return upward to the original position, for example, implemented by an elastic member (such as a spring), or the bracket 644 has a certain degree of structural elasticity. To achieve the aforementioned recovery action. In addition, in practice, the switch 66 may include a rubber dome, which also helps to achieve the aforementioned return action. In addition, in practice, the switch 66 can be integrated on a circuit board (for example, a system circuit board of an electronic device, a circuit board module for implementing the controller 62).

In addition, in this embodiment, as shown in FIG. 13, the light source 60 is not covered by the upper cover 642, but the transparent protective cover 58 and the second shield sheet 564 of the second plate-shaped light guide structure 56 both cover the light source. 60. This can prevent the light source 60 from leaking light to be seen by the user from the outside of the self-luminous touch panel 5. In practice, it is also possible to modify the position of the light source 60 relative to the window 642a, so that even if the light source 60 is not covered by the second shielding sheet 564, the light source 60 can still be prevented from leaking and being self-illuminated by the user outside the touch panel 5 see. As shown in FIG. 15, the upper cover 642 completely covers the plurality of light sources 60, so the light leakage of the light sources 60 can be prevented from being seen by the user. In this example, the second masking sheet 564 does not need to cover the light source 60.

In addition, the foregoing embodiments are described by taking the light-transmitting protective cover with the second plate-shaped light guide structure as an example, but the implementation is not limited to this. For example, the light-transmitting protective cover is structurally integrated with the second plate-shaped light guide structure, so that the light-transmitting protective cover and the second plate-shaped light guide structure jointly implement a light-shielding effect. Please refer to Figure 16 to Figure 18. According to one embodiment, the light-emitting touch panel 7 is similar in structure and logic to the light-emitting touch panel 1. Therefore, for other descriptions of the light-emitting touch panel 7, please refer to the relevant descriptions of the light-emitting touch panel 1 and its changes, no more Go into details. The difference from the light-emitting touch panel 1 is that the second plate-shaped light guide structure 76 of the light-emitting touch panel 7 does not have the second plate-shaped light guide structure 76 itself (for example, the second shielding sheet 164 in the light-emitting touch panel 1), but the light-emitting touch panel 7 The light-transmitting protective cover 78 is provided with a light-shielding structure that can interact with the second plate-shaped light guide structure 76 to achieve the light-shielding effect of the aforementioned second plate-shaped light guide structure 16.

In this embodiment, the light-transmitting protective cover 78 is glued to the second light-emitting surface 76 of the second plate-shaped light guide structure 76. The light-transmitting protective cover 78 has a plurality of light-transmitting portions 78a, and the plurality of light-transmitting portions 78a are respectively Corresponding to the plurality of second light guide portions 1622, 1626 of the second plate-shaped light guide structure 76. The light-transmitting protective cover 78 includes a light-transmitting plate 782 and a light-colored ink layer 784 and a dark-colored ink layer 786 stacked on a surface 782a of the light-transmitting plate 782. The dark ink layer 786 has a plurality of openings 786a. , To form the plurality of light-transmitting parts 78a. The second light guide sheet 162 of the second plate-shaped light guide structure 76 has a plurality of through grooves 1624 to separate the plurality of second light guide portions 1622, 1626, and the dark ink layer 786 covers the plurality of through grooves 1624. The light-transmitting protective cover 78 further includes an adhesive layer 788 disposed on a surface 782b of the light-transmitting plate 782 facing the second light guide sheet 162, and the light-transmitting protective cover 78 is glued to the second light guide sheet 162 via the adhesive layer 788. Therefore, in this embodiment, the light-transmitting protective cover 78 has both a protective cover function and a light-shielding effect, so that the light-emitting touch panel 7 has a thinner thickness as a whole, which has a better generation effect and a cost reduction. The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention should fall within the scope of the present invention.

1, 5, 7: illuminated touchpad 12, 52: Sensing board 12a: Sensing surface 122a, 122b: position sensing area 52a: first side 52b: second side 14, 34, 54: the first plate-shaped light guide structure 14a: First bottom surface 14b: The first light-emitting surface 14c: The first light incident zone 14d: First circumference 142, 342: The first light guide 142a, 342a: bottom surface 142b, 342b: top surface 142c: First side 142d: first shading zone 1422, 3422: first light guide 1424: Adhesive layer 1426: third light guide 144, 344: The first mask sheet 144a, 344a: light-transmitting part 1442: Transparent substrate 1442a, 1442b: surface 1444: light-colored ink layer 1446: Dark ink layer 1446a: opening 1448: Adhesive layer 1450: ring glue 16, 36, 56, 76: second plate light guide structure 16a: second bottom surface 16b, 56b, 76b: the second light-emitting surface 16c: The second light incident zone 16d: second circumference 162, 362: second light guide 162a, 362a: bottom surface 162b, 362b: top surface 162c: second side 162d: second shading zone 1622, 3622: second light guide 1624: through slot 1626: The fourth light guide 164, 364, 564: second mask sheet 164a, 364a: light transmitting part 1642: Transparent substrate 1642a, 1642b: surface 1644: light-colored ink layer 1646: Dark ink layer 1646a: opening 1648: Adhesive layer 17: circuit board 18: The first light source 20: second light source 22: third light source 24: The fourth light source 26, 62: Controller 28, 58, 78: transparent protective cover 28a: Top surface 28b: bottom surface 28c, 28d: touch area 78a: Transmitting part 782: Translucent board 782a: upper surface 782b: lower surface 784: light-colored ink layer 786: Dark ink layer 786a: opening 788: Adhesive Layer 29: Adhesive layer 60: light source 64: structural frame 642: upper cover 642a: Window 644: Bracket 66: switch D1: vertical direction D2: horizontal direction

FIG. 1 is a schematic diagram of a light-emitting touch panel according to an embodiment. FIG. 2 is an exploded view of the light-emitting touch panel in FIG. 1. FIG. FIG. 3 is a schematic diagram of FIG. 2 from another perspective. Fig. 4 is an exploded view of the first plate-shaped light guide structure in Fig. 2. 5 is a cross-sectional view of the first plate-shaped light guide structure in FIG. 2 along the line X-X. Fig. 6 is an exploded view of the second plate-shaped light guide structure in Fig. 2. Fig. 7 is a cross-sectional view of the second plate-shaped light guide structure in Fig. 2 along the line Y-Y. FIG. 8 is a top view of the light-emitting touch panel in FIG. 1. FIG. Fig. 9 is a cross-sectional view of the light-emitting touch panel in Fig. 1 along the line Z-Z. FIG. 10 is a schematic top view showing a backlight of a light-emitting touch panel according to an embodiment. FIG. 11 is an exploded schematic diagram of some components of a light-emitting touch panel according to another embodiment. Fig. 12 is a top view of a light-emitting touch panel according to an embodiment. FIG. 13 is a cross-sectional view of the light-emitting touch panel in FIG. 12 along the line W-W. FIG. 14 is a cross-sectional view of the light-emitting touch panel in FIG. 12 along the line V-V. FIG. 15 is a cross-sectional view of a light-emitting touch panel according to an embodiment, and the cross-sectional position is the same as that of FIG. 13. Fig. 16 is an exploded view of a light-emitting touch panel according to an embodiment. FIG. 17 is a schematic diagram of FIG. 16 from another perspective. Fig. 18 is a schematic diagram of the transparent protective cover in Fig. 16.

1: Illuminated touchpad

12: Sensing board

12a: Sensing surface

122a, 122b: position sensing area

14: The first plate-shaped light guide structure

14a: First bottom surface

14b: The first light-emitting surface

14c: The first light incident zone

14d: First circumference

142: The first light guide

142d: first shading zone

144: The first mask

144a: Transmitting part

16: The second plate-shaped light guide structure

16a: second bottom surface

16b: The second light-emitting surface

16c: The second light incident zone

162: second light guide

162d: second shading zone

164: The second mask sheet

164a: Translucent part

17: circuit board

18: The first light source

20: second light source

22: third light source

24: The fourth light source

26: Controller

28: Translucent protective cover

28a: Top surface

28c, 28d: touch area

Claims (42)

A luminous touch panel, including: A sensing board with a sensing surface; A first plate-shaped light guide structure is disposed on the sensing surface and has a first bottom surface, a first light-emitting surface opposite to the first bottom surface, and a plurality of first light-incident regions. For the sensing surface, the first light-emitting mask has a first periphery; A second plate-shaped light guide structure is disposed above the first plate-shaped light guide structure and has a second bottom surface, a second light-emitting surface opposite to the second bottom surface, and a plurality of second light-incident regions, the The second bottom surface faces the first light-emitting surface and has a second circumference, and the second circumference is glued to the first circumference; The plurality of first light sources are respectively arranged corresponding to the plurality of first light incident areas; and The plurality of second light sources are respectively arranged corresponding to the plurality of second light incident areas. The light-emitting touch panel according to claim 1, wherein the second periphery is glued to the first periphery through a ring glue. The light-emitting touch panel according to claim 1, wherein the first bottom surface is glued to the sensing surface. The light-emitting touch panel according to claim 1, further comprising a light-transmitting protective cover, wherein the light-transmitting protective cover is glued to the second light-emitting surface. The light-emitting touch panel according to claim 1, wherein the first plate-shaped light guide structure includes a first light guide sheet and a first mask sheet, and the first mask sheet is located between the first light guide sheet and Between the second plate-shaped light guide structures, the first light guide sheet has a plurality of first light guide portions, and the plurality of first light guide portions guide the emission from the plurality of first light sources and enter the first guide The light of the light sheet travels toward the first light-emitting surface. The light-emitting touch panel according to claim 5, wherein the first light guide portion is a fine structure and is disposed on a surface of the first light guide sheet facing the sensing surface. The light-emitting touch panel according to claim 5, wherein the first mask sheet has a plurality of light-transmitting parts, respectively corresponding to the plurality of first light-guiding parts. The light-emitting touch panel according to claim 7, wherein each first light guide portion includes a shape of a letter, number, symbol or figure. The light-emitting touch panel according to claim 8, wherein the light-transmitting portion has the same outline as the corresponding first light-guiding portion. The light-emitting touch panel according to claim 7, wherein the first mask sheet includes a light-transmitting substrate, and a light-colored ink layer disposed on a surface of the light-transmitting substrate facing the second plate-shaped light guide structure And a dark ink layer arranged on the light ink layer, the dark ink layer has a plurality of openings to form the plurality of light-transmitting parts. The light-emitting touch panel according to claim 5, wherein the first mask sheet includes a light-transmitting substrate, an adhesive layer disposed on a surface of the light-transmitting substrate facing the first light guide sheet, and A ring-shaped adhesive on the other surface of the light-transmitting substrate facing the second plate-shaped light guide structure, the first mask sheet is glued to the first light guide sheet via the adhesive layer, the first mask The sheet is glued to the second periphery through the annular glue. The light-emitting touch panel according to claim 5, wherein the second plate-shaped light guide structure includes a second light guide sheet, and the second light guide sheet has a plurality of second light guide parts, respectively corresponding to the plurality of second light guide parts. A light guide part, the plurality of second light guide parts guide the light emitted from the plurality of second light sources and enter the second light guide sheet to travel toward the second light exit surface. The light-emitting touch panel according to claim 12, wherein the second light guide portion is a fine structure, and is disposed on a surface of the second light guide sheet facing the first plate-shaped light guide structure. The light-emitting touch panel according to claim 13, wherein the projections of the plurality of second light guide portions and the plurality of first light guide portions are staggered in a direction perpendicular to the first light emitting surface. The light-emitting touch panel according to claim 12, wherein the plurality of second light guide parts are respectively disposed corresponding to the plurality of first light guide parts, and the contour of the first light guide part corresponds to the corresponding second light guide part The contours at least partially overlap. The light-emitting touch panel according to claim 15, wherein the second plate-shaped light guide structure includes a second mask sheet, and the second light guide sheet is located between the second mask sheet and the first plate-shaped light guide Between the structures, the second mask sheet has a plurality of light-transmitting parts, and the plurality of light-transmitting parts respectively correspond to the plurality of second light-guiding parts. The light-emitting touch panel according to claim 16, wherein the union of the contour of the first light guide portion and the contour of the corresponding second light guide portion is the same as the contour of the light transmitting portion. The light-emitting touch panel according to claim 15, wherein each second light guide portion includes a shape of a letter, number, symbol or figure. The light-emitting touch panel according to claim 12, wherein the first plate-shaped light guide structure includes a plurality of first light-shielding regions, and the plurality of first light-shielding regions and the plurality of first light incident regions are alternately arranged on the first light-shielding region A first side surface of a light guide sheet, the plurality of first light sources are arranged directly on the plurality of first light incident regions, the second plate-shaped light guide structure includes a plurality of second light shielding regions, and the plurality of second light shielding regions The area and the plurality of second light incident areas are staggeredly arranged on a second side surface of the second light guide plate, and the plurality of second light sources are arranged directly on the plurality of second light incident areas. The light-emitting touch panel according to claim 19, wherein the first side surface and the second side surface are located on the same side of the light-emitting touch panel, and the plurality of first light sources and the plurality of second light sources are alternately arranged in a row, The plurality of first light sources are facing the plurality of second shading areas, and the plurality of second light sources are facing the plurality of first shading areas. The light-emitting touch panel according to claim 1, wherein the second plate-shaped light guide structure includes a second light guide sheet, and the second light guide sheet has a plurality of second light guide parts, respectively corresponding to the plurality of second light guide parts. A light guide part, the plurality of second light guide parts guide the light emitted from the plurality of second light sources and enter the second light guide plate to travel toward the second light exit surface. The light-emitting touch panel according to claim 21, wherein the second light guide sheet has a plurality of through grooves to separate the plurality of second light guide portions. The light-emitting touch panel according to claim 22, wherein the second plate-shaped light guide structure includes a second mask sheet, and the second light guide sheet is located between the second mask sheet and the first plate-shaped light guide Between the structures, the second mask sheet covers the plurality of through grooves and has a plurality of light-transmitting parts, and the plurality of light-transmitting parts respectively correspond to the plurality of second light guide parts. The light-emitting touch panel according to claim 23, wherein the second mask sheet includes a light-transmitting substrate, and a light-colored ink disposed on a surface of the light-transmitting substrate facing away from the first plate-shaped light guide structure And a dark ink layer arranged on the light ink layer, the dark ink layer has a plurality of openings to form the plurality of light-transmitting parts. The light-emitting touch panel according to claim 21, wherein the second plate-shaped light guide structure includes a second mask sheet, and the second light guide sheet is located between the second mask sheet and the first plate-shaped light guide Between the structures, the second mask sheet includes a light-transmitting substrate and an adhesive layer disposed on a surface of the light-transmitting substrate facing the second light guide sheet, and the second mask sheet is glued through the adhesive layer To the second light guide sheet. The light-emitting touch panel according to claim 21, wherein the light guided by two adjacent second light guides among the plurality of second light guides is partially mixed. The light-emitting touch panel according to claim 21, further comprising a light-transmitting protective cover, wherein the light-transmitting protective cover is glued to the second light-emitting surface, the light-transmitting protective cover has a plurality of light-transmitting parts, the plurality of The light-transmitting parts correspond to the plurality of second light-guiding parts, respectively. The light-emitting touch panel according to claim 27, wherein the light-transmitting protective cover comprises a light-transmitting plate, and a light-colored ink layer and a dark ink layer stacked on a surface of the light-transmitting plate, the The dark ink layer has a plurality of openings to form the plurality of light-transmitting parts. The light-emitting touch panel according to claim 28, wherein the second light guide sheet has a plurality of through grooves to separate the plurality of second light guide portions, and the dark ink layer covers the plurality of through grooves. The light-emitting touch panel according to claim 27, wherein the light-transmitting protective cover includes a light-transmitting plate and an adhesive layer disposed on a surface of the light-transmitting plate facing the second light guide sheet, the light-transmitting protection The cover is glued to the second light guide sheet through the adhesive layer. The light-emitting touch panel according to claim 1, wherein the sensing board, the first plate-shaped light guide structure, and the second plate-shaped light guide structure are stacked in a vertical direction, and the plurality of first light sources are A row is arranged in a horizontal direction, the plurality of second light sources are arranged in a row in the horizontal direction, and the horizontal direction is perpendicular to the vertical direction. The light-emitting touch panel according to claim 31, wherein the plurality of first light sources and the plurality of second light sources are alternately arranged in a row. The light-emitting touch panel according to claim 1, further comprising a controller, wherein the controller is electrically connected to the sensing board, and the controller is electrically connected to the plurality of first light sources and the plurality of second light sources , To control the plurality of first light sources and the plurality of second light sources to selectively emit light. The light-emitting touch panel according to claim 33, wherein a plurality of position sensing areas are defined on the sensing surface, and each position sensing area corresponds to a first light source and a second light source, and the controller detects The board receives position data of a touch implemented on the light-emitting touch panel, determines which position sensing area of the plurality of position sensing areas the touch corresponds to according to the position data, and controls the corresponding determination The first light source or the second light source in the out-of-position sensing area emits light. The light-emitting touch panel according to claim 33, wherein a plurality of position sensing areas are defined on the sensing surface, and each position sensing area corresponds to a first light source and a second light source, and the controller controls the corresponding plural The first light source or the second light source in one of the position sensing areas of the position sensing areas emits light, and receives the position data of a touch implemented on the light-emitting touch panel from the sensing panel. When the controller When it is determined according to the position data that the touch falls within the position sensing area, the output corresponds to a predetermined output of the position sensing area. The light-emitting touch panel according to claim 1, further comprising a structural frame, wherein the structural frame comprises an upper cover and a bracket, the upper cover has a window, the sensing board is supported on the bracket, and the second The second light emitting surface of the plate-shaped light guide structure faces the window. The light-emitting touch panel according to claim 36, wherein the cover covers the plurality of first light sources and the plurality of second light sources. The light-emitting touch panel according to claim 36 further includes a light-transmitting protective cover covering the second light-emitting surface and exposed in the window. The light-emitting touch panel according to claim 38, wherein the transparent protective cover is completely exposed in the window and covers the plurality of first light sources and the plurality of second light sources. The light-emitting touch panel according to claim 39, wherein the second plate-shaped light guide structure includes a second light guide sheet and a second mask sheet, and the second light guide sheet is located between the second mask sheet and the second mask sheet. Between the first plate-shaped light guide structure, the second mask sheet covers the plurality of first light sources and the plurality of second light sources. The light-emitting touch panel according to claim 36, wherein the bracket supports a first side of the sensing board, and the sensing board is vertically deflected relative to the bracket by the first side. The light-emitting touch panel according to claim 41, further comprising a switch, disposed below a second side of the sensing board with respect to the first side, wherein the sensing board has the first side opposite to the support The rack deflects downward to trigger the switch.

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