WO2014180116A1 - Electronic paper display device with light source - Google Patents

Electronic paper display device with light source Download PDF

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Publication number
WO2014180116A1
WO2014180116A1 PCT/CN2013/087831 CN2013087831W WO2014180116A1 WO 2014180116 A1 WO2014180116 A1 WO 2014180116A1 CN 2013087831 W CN2013087831 W CN 2013087831W WO 2014180116 A1 WO2014180116 A1 WO 2014180116A1
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WO
WIPO (PCT)
Prior art keywords
light source
electronic paper
paper display
display device
color
Prior art date
Application number
PCT/CN2013/087831
Other languages
French (fr)
Chinese (zh)
Inventor
林永强
唐雄兵
王喜杜
Original Assignee
广州奥翼电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 201320241752 external-priority patent/CN203217213U/en
Priority claimed from CN2013101646346A external-priority patent/CN103207496A/en
Application filed by 广州奥翼电子科技有限公司 filed Critical 广州奥翼电子科技有限公司
Publication of WO2014180116A1 publication Critical patent/WO2014180116A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field

Definitions

  • the present invention relates to an electronic paper display device, and more particularly to an electronic paper display device with a light source.
  • E-paper Electronic paper technology is actually a general term for a class of technology, the English name E-paper, mostly using electrophoresis display technology (electrophoresis display, EPD) as a display panel.
  • EPD electrophoresis display
  • the electronic paper display device is different from the divergent display device, and the divergent display device can emit light by itself, so that it can be used normally even under dim light conditions.
  • the display effect of this divergent display is less satisfactory, because the strong ambient light increases the brightness of melanin and reduces the contrast, which is why we cannot direct it in the sun.
  • the reflective display displays the image by reflecting ambient light. The brightness of the image changes according to the intensity of the ambient light, so the display advantage of the reflective display is more obvious under strong light.
  • a front light source is provided on the electronic paper display for assisting illumination in a poor lighting environment.
  • the front light source generally uses only the light source of the same color, and the color is fixed. But each person's eyes have different feelings about light. When reading, the same color of light, some people feel comfortable, others feel uncomfortable or glaring. In this way, since the color of the light source cannot be changed, it is impossible to adapt to the different needs of all people.
  • the technical problem to be solved by the present invention is to provide an electronic paper display device with a light source capable of changing colors.
  • the present invention provides an electronic paper display device with a light source, which comprises an electronic paper display module, a light guide plate disposed adjacent to the periphery of the electronic paper display module, and a front side disposed adjacent to the side of the light guide plate.
  • the light source group includes two or more light source units of different colors and/or color temperatures, a driving circuit for driving the light source unit, and light source units of different colors or color temperatures are disposed at intersection.
  • the front light source group of the present invention includes two or more light source units of different colors, and light source units of different colors are arranged in a cross. In this way, the user can select different color light source units for reading according to different needs, thereby expanding the selectable range of light colors, meeting the needs of different people, and improving the reading effect.
  • an electronic paper display device with a light source, which is an LED that displays a single color or color temperature.
  • a light source which is an LED that displays a single color or color temperature.
  • the light source unit is for displaying a single color or color temperature
  • the LED wick, the combination of two or more color LED wicks together form an integrated color LED. This is done by setting a color LED that can display different colors or color temperatures.
  • the arrangement of the colored LEDs causes the crossover settings of the LED wicks of different colors to be displayed, and the user can select LED wicks of different colors for display as needed.
  • An electronic paper display device with a light source is improved on the one hand, in series with a light source unit of the same color or color temperature, and in series with a drive circuit to form a circuit loop.
  • each group of light sources with the same color or color temperature Driven by a separate drive circuit, each group of different color or color temperature source units is controlled by controlling each drive circuit.
  • the electronic paper display device with the light source is improved on the one hand, the light source units of the same color or color temperature are sequentially connected in series, and then connected in series with the selection switch to form a circuit branch, and the circuit branches are connected in parallel and connected with the drive circuit to form a circuit loop.
  • the drive circuit includes a selection switch coupled to each circuit branch for selectively controlling the conduction of each circuit branch. In this way, the light source unit of the same color or color temperature is controlled to be connected to the driving circuit through the selection switch, and of course, the light source unit of two or more colors or color temperatures can be simultaneously controlled. Connected to the drive circuit.
  • the driving circuit is a driving circuit whose output current and current value are adjustable. This allows you to control the intensity of the light from the source unit by adjusting the current value.
  • the light guide plate has a thickness of 0.2-2 mm. Such a thickness is advantageous for optimizing the optical effect.
  • the light guide plate is made of PMMA.
  • PMMA (English name: polymethylmethacrylate; Chinese name: polymethyl methacrylate) or PC (Chinese name: polycarbonate) light guide plate.
  • the polycarbonate (abbreviated as PC) is a polymer having a carbonate group in a molecular chain, and can be classified into aliphatic, aromatic, or aliphatic-aromatic types depending on the structure of the ester group.
  • the light guide plate is provided with pits and/or bump spots.
  • the spot has a diameter of 1-100 ⁇ m.
  • the spot is disposed to refract light in the light guide plate to a spot on the display surface of the electronic paper display module. This is to set the shape, size, position and setting direction of the light spot to facilitate refracting light in the light guide plate toward the display surface of the electronic paper display module.
  • An improvement of an electronic paper display device with a light source as an aspect of the present invention wherein the light spot is on the light guide plate according to a distance from the light source unit The farther the setting is, the more dense the way to set it up. This will cause more light to be refracted downward to compensate for the weaker the light from the light source in the light guide plate, so that the light is evenly distributed to the entire display surface of the electronic paper display device.
  • the light guide plate is attached to the electronic paper display module through a first transparent optical adhesive. This facilitates the fixing of the light guide plate, reduces light reflection through the interface between the two optical media, and improves the definition.
  • An improvement of an electronic paper display device with a light source as an aspect of the present invention further comprising an anti-anti-glare protection attached to the light guide plate Protective film.
  • the anti-anti-glare protective film is used for reducing reflection, allowing more light to enter, preventing specular reflection and improving reading effect, and protecting the light guide plate from scratching.
  • the anti-anti-glare protective film is attached to the light guide plate by a second transparent optical adhesive, thereby preventing the anti-anti-glare protective film from falling off or Lift up.
  • An electronic paper display device with a light source is provided on the one hand, and the electronic paper display module is provided with a capacitive touch component including a capacitive touch panel or a film layer, a capacitive touch on the capacitive touch panel or the film layer Line layer.
  • the electronic paper display device of the present invention belongs to a reflective reader, which is different from the divergent display device, and the electronic paper display device itself does not emit light, but It is equipped with a front light and can emit light by itself, so it can be used normally even under dim or dark conditions. When the ambient light is strong enough, the electronic paper display device can turn off the front light use
  • the light source unit of the present invention may not only be different light source units of colors such as white, yellow, blue, red, green, black, but also light source units of different color temperatures.
  • the color temperature (colo(u)r Temperature ) is the scale indicating the color of the light source, and the unit is K (Kelvin).
  • the color temperature is defined by the absolute black body. When the radiation of the light source is exactly the same in the visible region and the absolute black body, the temperature of the black body is called the color temperature of the light source.
  • the characteristic of low color temperature light source is that the red radiation is relatively more in the energy distribution, which is usually called 'warm light'; after the color temperature is increased, the proportion of blue radiation increases in the energy distribution, which is usually called 'cold light'.
  • the color temperature of some common light sources is: standard candlelight is 1930K (Kelvin temperature unit); tungsten filament lamp is 2760-2900K; fluorescent lamp is 3000K; flashlight is 3800K; noon sunlight is 5600K; electronic flash is 6000K; blue sky is 12000-18000K.
  • Figure 1 is a longitudinal cross-sectional view showing an electronic paper display device with a light source in a first embodiment of the present invention.
  • FIG. 2 is a transverse cross-sectional view of an electronic paper display device with a light source of FIG. 1.
  • FIG. 3 is a circuit schematic diagram of a front light source group in the electronic paper display device with a light source of FIG. 1.
  • FIG. 4 is a circuit schematic diagram of a front light source group in a second embodiment of an electronic paper display device with a light source according to the present invention.
  • Figure 5 is a longitudinal cross-sectional view showing a third embodiment of an electronic paper display device with a light source according to the present invention.
  • Figure 6 is a transverse cross-sectional view of the electronic paper display device with a light source of Figure 5.
  • Figure 7 is a longitudinal cross-sectional view showing a fourth embodiment of an electronic paper display device with a light source according to the present invention.
  • Figure 8 is a longitudinal cross-sectional view showing an electronic paper display device with a light source in a fifth embodiment of the present invention.
  • FIG. 9 is a circuit schematic diagram of a front light source group in an electronic paper display device with a light source of FIG.
  • Figure 10 is a circuit schematic diagram of a front light source group in a sixth embodiment of an electronic paper display device with a light source according to the present invention.
  • Figure 11 is a longitudinal cross-sectional view showing an electronic paper display device with a light source in a seventh embodiment of the present invention.
  • Figure 12 is a circuit diagram of a driving circuit of an electronic paper display device with a light source in one embodiment of the present invention.
  • FIG. 1 is a longitudinal cross-sectional view of an electronic paper display device with a light source in a first embodiment
  • FIG. 2 is a transverse cross-sectional view of an electronic paper display device with a light source in
  • FIG. 3 is a schematic circuit diagram of an electronic paper display device with a light source in FIG.
  • an electronic paper display device with a light source includes an electronic paper display module 101, a first transparent optical adhesive 102, a light guide plate 103, and a front light source group 104.
  • the electronic paper display module 101 is an electrophoretic display module, and the electrophoretic display module is printed on a certain substrate by electronic ink of a liquid material.
  • this liquid material there are hundreds of microcapsules of the same size as the diameter of the human hair, each microcapsule consisting of positively charged particles or negatively charged particles and neutral particles; or, positively charged particles and Composition of negatively charged particles.
  • This electronic ink can be printed onto the substrate by a certain process. If the microcapsules are positively charged particles or negatively charged particles and neutral particles, when a positive or negative electric field is applied to both ends of the microcapsule, the charged particles are controlled to move under the action of the electric field, and the neutral particles do not move to realize the display. .
  • microcapsules are positively charged particles and negatively charged particles
  • a negative electric field is applied across the microcapsules
  • the positively charged white particles move to the negative electrode of the electric field under the action of the electric field, and at the same time, with negative Charged particles move to the bottom of the microcapsule 'Hide', then the surface will show white.
  • the black particles move to the top of the microcapsules under the action of the electric field, and the surface appears black.
  • the first transparent optical adhesive 102 is used to attach the light guide plate 103 to the display surface side of the electronic paper display module 101.
  • the first transparent optical adhesive 102 can adopt solid OCA or liquid OCA optical adhesive (Optical) Clear Adhesive) material.
  • the first transparent optical adhesive 102 requires better light transmission properties.
  • the light guide plate 103 is disposed adjacent to the periphery of the electronic paper display module 101, that is, attached to the display surface side of the electronic paper display module 101 by the first transparent optical adhesive 102.
  • the shape of the light guide plate 103 is adapted to the shape of the display surface side of the electronic paper display module 101.
  • the light guide plate 103 has a thickness of 0.2 to 2 mm, and such a thickness is advantageous for optimizing the optical effect.
  • the material of the light guide plate is made of PMMA (English name: polymethylmethacrylate; Chinese name: polymethyl methacrylate) or PC (Chinese name: polycarbonate) material, and the polycarbonate (referred to as PC) is A polymer having a carbonate group in a molecular chain can be classified into aliphatic, aromatic, or aliphatic-aromatic types depending on the structure of the ester group.
  • PC Polycarbonate
  • the light guide plate 103 is provided with spots of pits and/or bumps.
  • the spot diameter is 1-100 ⁇ m, and specifically 1 ⁇ m , 5 ⁇ m, 10 ⁇ m, 20 ⁇ m, 30 ⁇ m, 40 ⁇ m, 50 ⁇ m, 60 ⁇ m, 70 ⁇ m, 80 ⁇ m, 90 ⁇ m Or 100 ⁇ m Wait, so the human eye can't see or find the spot.
  • the light spot is disposed to refract light in the light guide plate 103 toward a light spot on the display surface of the electronic paper display module 101, that is, by setting the shape, size, position, and setting direction of the light spot to have The light in the light guide plate is refracted toward the display surface of the electronic paper display module.
  • the light spot is disposed on the light guide plate 103 in a dense manner according to the distance from the light source, so that more light is refracted downward to compensate for the light guide. The farther away from the light source, the weaker the light is. The light that is directed to the entire display surface of the electronic paper display device is uniform.
  • the front light source group 104 is disposed adjacent to the side of the light guide plate 103.
  • the front light source group 104 is configured to provide a light source for the user to read the electronic paper display device when the lighting environment is poor.
  • the front light source group 104 includes two or more light source units of different colors, a driving circuit for driving the light source unit, and light source units of different colors are disposed at intersection.
  • the front light source group 104 in this embodiment includes two color light source units, that is, a first color light source unit 105 and a second color light source unit 106.
  • the first color light source unit 105 and the second color light source unit 106 are respectively used to display two different colors of light sources, and may also be light sources of different color temperatures.
  • the first color light source unit 105 and the second color light source unit 106 may respectively be one or more light source units.
  • a plurality of light source units are generally used, and a plurality of light source units are generally used.
  • the electronic paper display assembly displays uniform light on the surface.
  • a plurality of the first color light source unit 105 and the second color light source unit 106 are alternately arranged in a staggered manner so that the two colors of light are uniformly mixed, and the number can be set to be equal or une
  • the first color light source unit 105 and the second color light source unit 106 use an LED light emitting a single color light, which has the advantages of low power consumption, small volume, thin thickness, light weight, and long life.
  • the front light source group 104 is soldered on the ultra-thin flexible circuit board FPC by using a plurality of ultra-thin, side-emitting LED lamps, so that the thickness of the entire light source is very thin, ranging from 0.2 to 1 mm, specifically 0.2 mm, 0.3 mm, 0.5 mm, 0.6 mm, 0.8 mm or 1 mm, etc.
  • the first color light source unit 105 and the second color light source unit 106 are respectively connected to the driving circuit through the flexible circuit board FPC.
  • FIG. 3 a plurality of the first color light source units 105 are connected in series to each other and connected in series to form a circuit circuit.
  • a plurality of said second color light source units 106 are connected in series to each other and connected in series to a drive circuit 111 to constitute a circuit loop.
  • Both the driving circuit 110 and the driving circuit 111 can adopt a DC-DC boosting constant current source, and can output a constant current.
  • Figure 12 is a circuit diagram of a driving circuit of an electronic paper display device with a light source in one embodiment of the present invention. Referring to FIG.
  • the driving circuit 110 and the driving circuit 111 may respectively be an integrated IC, such as a TPS61160, which can control the current value of the constant current source by the duty ratio of the external PWM waveform to control the first color.
  • the light source unit 105 and the second color light source unit 106 emit light intensity.
  • the illumination of the first color light source unit 105 and/or the second color light source unit 106 is controlled by the control selection drive circuit 110 and/or the drive circuit 111; and both the first color light source unit 105 and the second color light source unit 106 can pass through the circuit thereof
  • the current regulator in the loop adjusts the intensity of its illumination, even down to off. In this way, light of different colors and different light intensities can be obtained, and the color selection range of the light can be expanded to meet the needs of different people and improve the reading effect.
  • FIG. 4 is a circuit schematic diagram of a front light source group in a second embodiment of an electronic paper display device with a light source according to the present invention.
  • the first embodiment differs from the first embodiment in that a plurality of first color light source units 105 emitting the same color light are connected in series to form a first circuit branch; a plurality of light emitting the same color
  • the second color light source units 106 are connected in series to each other to form a second circuit branch.
  • the first circuit branch is connected in parallel with the second circuit branch and connected to the driving circuit 100 to form a circuit loop.
  • the driving circuit includes a selection switch connected to each circuit branch for selecting and controlling the conduction of each circuit branch, and a current regulator for adjusting the output current and current value of the driving circuit, so that the first color light source unit 105 can be controlled by the selection switch.
  • the second color light source unit 106 is connected to the driving circuit unit 100, and at the same time, a driving circuit can be used for driving the first color light source unit 105 and/or the second color light source unit 106.
  • the first color light source unit 105 and the second color light source unit 106 may control the intensity of the light emission by adjusting the current value output by the driving circuit through the current regulator.
  • FIG. 5 is a longitudinal cross-sectional view of an electronic paper display device with a light source in a third embodiment
  • FIG. 6 is a transverse cross-sectional view of the electronic paper display device with a light source in FIG.
  • the embodiment may be improved on the basis of the first embodiment or the second embodiment, and the anti-anti-glare protective film 108 is added on the basis of the first embodiment or the second embodiment. That is, the replaceable anti-anti-glare protective film 108 is directly attached to the light guide plate 103.
  • the anti-anti-glare protection film 108 can reduce reflection and allow more light to enter; at the same time, it can prevent specular reflection and improve reading effect; and can protect the light guide plate from scratching.
  • FIG. 7 is a longitudinal cross-sectional view showing a fourth embodiment of an electronic paper display device with a light source according to the present invention.
  • This embodiment may be an improvement on the basis of the third embodiment.
  • a second transparent optical adhesive 109 is added.
  • the anti-anti-glare protective film 108 is adhered by the second transparent optical adhesive 109. It is attached to the light guide plate 103, so that the anti-anti-glare protective film 108 can be prevented from falling off or lifting.
  • the second transparent optical adhesive 109 can adopt solid OCA or liquid OCA optical adhesive (Optical) Clear Adhesive) material.
  • the second transparent optical adhesive 109 requires better light transmission properties.
  • FIG. 8 is a longitudinal cross-sectional view of an electronic paper display device with a light source in a fifth embodiment
  • FIG. 9 is a circuit schematic diagram of an electronic paper display device with a light source in FIG.
  • the improvement of the first embodiment is based on the first embodiment.
  • the front light source group 104 includes a light source unit of one color, that is, includes a first color light source unit 105 and a second color light source. Unit 106 and third color light source unit 107.
  • the first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 are light sources for displaying three different colors, respectively, and may also be light sources of different color temperatures.
  • the first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 may respectively include one or more light source units. In this embodiment, a plurality of light source units are generally used, and a plurality of light source units are generally used.
  • the uniform distribution of the light source units facilitates uniformity of light on the display surface of the electronic paper display assembly.
  • a plurality of the first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 are alternately arranged in a staggered manner so that the two colors of light are uniformly mixed, and the number may be set to be equal or unequal.
  • FIG. 12 is a circuit diagram of a driving circuit of an electronic paper display device with a light source in one embodiment of the present invention.
  • the driving circuit 110, the driving circuit 111 and the driving circuit 112 may respectively be an integrated IC, such as a TPS61160, which can control the current value of the constant current source by the duty ratio of the external PWM waveform to control the first color.
  • the light source unit 105, the second color light source unit 106, and the third color light source unit 107 emit light intensity.
  • Each of the one color light source unit 105, the second color light source unit 106, and the third color light source unit 107 can adjust the intensity of the light emitted by the drive circuit to adjust the intensity of the light output, even to the turn-off. In this way, light of different colors and different light intensities can be obtained, and the color selection range of the light can be expanded to meet the needs of different people and improve the reading effect.
  • FIG. 10 is a circuit schematic diagram of a front light source group in a sixth embodiment of an electronic paper display device with a light source according to the present invention.
  • the embodiment is different from the fifth embodiment in that a plurality of first color light source units 105 emitting the same color light are connected in series to form a first circuit branch; a plurality of light emitting the same color
  • the second color light source units 106 are connected in series to each other to form a second circuit branch.
  • a plurality of third color light source units 107 that emit light of the same color are connected in series to each other to form a third circuit branch.
  • the first circuit branch, the second circuit branch and the third circuit branch are connected in parallel and connected to the driving circuit 100 to form a circuit loop.
  • the driving circuit includes a selection switch connected to each circuit branch for selecting and controlling the conduction of each circuit branch, and a current regulator for adjusting the output current and current value of the driving circuit, so that the first color light source unit 105 can be controlled by the selection switch.
  • the second color light source unit 106 and/or the third color light source unit 107 are connected to the driving circuit, and at the same time, one driving circuit 100 can be used to drive the first color light source unit 105 and/or the second color light source unit. 106 and / or a third color light source unit 107.
  • the first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 may each adjust a current value output by the driving circuit 100 through a current regulator to control the intensity of the light emission thereof.
  • Figure 11 is a longitudinal cross-sectional view showing a seventh embodiment of an electronic paper display device with a light source according to the present invention.
  • This embodiment may be an improvement based on the above embodiment, and is different from the above embodiment in that the front light source group 104 includes two or more light source units of different colors, and light source units of different colors are disposed at intersection.
  • the light source unit is an LED wick for displaying a single color, and LED wicks of two or more colors are combined to form an integrated color LED 120.
  • the arrangement of the color LEDs 120 can be used to display the crossover settings of the LED wicks of different colors, and the user can select LEDs of different colors according to the needs.
  • the wick is displayed.
  • the color LED 120 may be a full-color LED, and the full-color LED adopts white (including white light of different color temperatures such as cool white and warm white), red (R), green (G), and blue (B) four basic color LED wicks. .
  • the color LED 120 can also adopt three basic color LED wicks of red (R), green (G), and blue (B), and can also be white, red (R), green (G), and blue (B).
  • These LED wicks can be packaged in a variety of forms and packaged into the same LED.
  • the color LED 12 0 A plurality of evenly distributed LED wicks of the same color among the plurality of color LEDs 120 are connected in series and connected to a driving circuit to form a loop.
  • the red LED wicks in each color LED 120 are connected in series and connected to a driving circuit to form a loop;
  • White LED in color LED120 The wicks are connected in series and connected to a driving circuit to form a loop; thus, the red LED wick and the white LED wick are controlled by different driving circuits, and the user can control each driving circuit to select different color LED wicks according to needs, of course, Control two or more LED wicks to illuminate.
  • the user can also control the intensity of the LED illuminance by the output current and current value adjustment function of the drive circuit.
  • all colors can be mixed with three primary colors of red, green and blue according to a certain intensity ratio, which approximates the color of light visible to almost all human eyes, satisfies the needs of different people and improves the reading effect.
  • the LED wicks of the same color among the plurality of color LEDs are connected in series to form a circuit branch, and the plurality of circuit branches are connected in parallel and connected to a driving circuit to form a circuit loop, and the driving circuit includes and the circuits.
  • the branches are connected and used to select a selection switch that controls the conduction of each circuit branch, and a current regulator that adjusts the output current and current value of the drive circuit. This implements a single drive circuit to control multiple All LEDs of color LEDs Wick.
  • the user can control the LED wicks of different colors by selecting the switch, or control the LED wicks of two or two different colors to emit light at the same time, and can also control the luminous intensity of the LED wicks of the respective colors through the current regulators on the circuit branches.
  • the light source units of different colors are not limited to different light source units including colors such as white, yellow, blue, red, green, black, etc., and should also include differences between different color temperatures, ie, A light source unit comprising two or more different color temperatures.
  • the color temperature (colo(u)r Temperature ) is the scale indicating the color of the light source, and the unit is K (Kelvin).
  • the color temperature is defined by the absolute black body. When the radiation of the light source is exactly the same in the visible region and the absolute black body, the temperature of the black body is called the color temperature of the light source.
  • the characteristic of low color temperature light source is that the red radiation is relatively more in the energy distribution, which is usually called 'warm light'; after the color temperature is increased, the proportion of blue radiation increases in the energy distribution, which is usually called 'cold light'.
  • the color temperature of some common light sources is: standard candlelight is 1930K (Kelvin temperature unit); tungsten filament lamp is 2760-2900K; fluorescent lamp is 3000K; flashlight is 3800K; noon sunlight is 5600K; electronic flash is 6000K; blue sky is 12000-18000K.
  • the electronic paper display device may be an electronic paper display device having a capacitive touch input function, that is, a capacitive touch component is disposed on the electronic paper display module, and the capacitive touch component includes a capacitive touch A plate or film layer, a capacitive touch line layer on a capacitive touch pad or film layer.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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  • Illuminated Signs And Luminous Advertising (AREA)
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Abstract

An electronic paper display device with a light source, comprising an electronic paper display module (101), a light guide plate (103) adjacently arranged on the perimeter of the electronic paper display module (101), and a front light source group (104) adjacently arranged on a side face of the light guide plate (103). The front light source group (104) comprises two or more light source units (105, 106) of different colours and/or colour temperatures, and a drive circuit (110, 111) which drives the light source units (105, 106), wherein the light source units (105, 106) of different colours or colour temperatures are arranged alternately.

Description

一种带光源的电子纸显示装置Electronic paper display device with light source
技术领域 Technical field
本发明涉及一种电子纸显示装置，尤其涉及一种带光源的电子纸显示装置。The present invention relates to an electronic paper display device, and more particularly to an electronic paper display device with a light source.
背景技术 Background technique
电子纸技术实际上是一类技术的统称，英文名称E-paper，多是采用电泳显示技术(electrophoresis Display, EPD)作为显示面板。电子纸显示装置区别于发散型显示设备，发散型显示设备可以自己发光，所以即使在光线暗淡的条件下也可以正常使用。但是，随着环境光强度的增加，这种发散型显示器的显示效果就不那么令人满意了，因为较强的环境光提高了黑色素的亮度并降低了对比度，这也是我们无法在阳光直射的情况下看清显示器上文字的原因。而反射型显示器是通过反射环境光来显示图像的，图像的亮度会根据环境光线的强度改变，所以在强烈光线下反射型显示器的显示优势更明显。Electronic paper technology is actually a general term for a class of technology, the English name E-paper, mostly using electrophoresis display technology (electrophoresis display, EPD) as a display panel. The electronic paper display device is different from the divergent display device, and the divergent display device can emit light by itself, so that it can be used normally even under dim light conditions. However, as the ambient light intensity increases, the display effect of this divergent display is less satisfactory, because the strong ambient light increases the brightness of melanin and reduces the contrast, which is why we cannot direct it in the sun. In the case of seeing the reason for the text on the display. The reflective display displays the image by reflecting ambient light. The brightness of the image changes according to the intensity of the ambient light, so the display advantage of the reflective display is more obvious under strong light.
由于电子纸显示器的阅读需要外来光源的帮助，所以人们在电子纸显示器上设置有前光光源，用于在光照环境不好的情况辅助照明。但目前前光光源一般是仅使用同一种颜色的光源，颜色固定不变。但每一个人的眼睛对光的感受是不一样的，在阅读时，同一种颜色的光，有些人觉得舒服，另一些人觉得不舒服或刺眼。这样由于光源的颜色不能改变，导致不能适应所有人的不同需要。Since the reading of the electronic paper display requires the help of an external light source, a front light source is provided on the electronic paper display for assisting illumination in a poor lighting environment. However, at present, the front light source generally uses only the light source of the same color, and the color is fixed. But each person's eyes have different feelings about light. When reading, the same color of light, some people feel comfortable, others feel uncomfortable or glaring. In this way, since the color of the light source cannot be changed, it is impossible to adapt to the different needs of all people.
因此，怎样克服上述问题是目前业界迫切需解决的。Therefore, how to overcome the above problems is urgently needed to be solved in the industry.
发明内容 Summary of the invention
基于现有技术的不足，本发明需要解决的技术问题是提供一种带光源的电子纸显示装置，该光源能够变换颜色。Based on the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an electronic paper display device with a light source capable of changing colors.
为解决上述技术问题，本发明提供一种带光源的电子纸显示装置，其包括电子纸显示模组、相邻设置于电子纸显示模组周边的导光板、相邻设置于导光板侧面的前光源组，所述前光源组包括两种或两种以上不同颜色和/或色温的光源单元、驱动该光源单元的驱动电路，不同颜色或色温的光源单元交叉设置。In order to solve the above problems, the present invention provides an electronic paper display device with a light source, which comprises an electronic paper display module, a light guide plate disposed adjacent to the periphery of the electronic paper display module, and a front side disposed adjacent to the side of the light guide plate. The light source group includes two or more light source units of different colors and/or color temperatures, a driving circuit for driving the light source unit, and light source units of different colors or color temperatures are disposed at intersection.
与现有技术相比较，本发明的前光源组包括两种或两种以上不同颜色的光源单元，不同颜色的光源单元交叉设置。这样用户可以根据不同的需求选择不同颜色的光源单元进行阅读，从而扩大光颜色的可选择范围，满足不同人的需要，改善阅读效果。Compared with the prior art, the front light source group of the present invention includes two or more light source units of different colors, and light source units of different colors are arranged in a cross. In this way, the user can select different color light source units for reading according to different needs, thereby expanding the selectable range of light colors, meeting the needs of different people, and improving the reading effect.
作为本发明一种 带光源的电子纸显示装置一方面的改进，所述光源单元为显示单一颜色或色温的LED。这样通过显示不同颜色或色温的LED交叉设置，用户可以根据需要选择不同颜色或色温的LED进行显示。As a kind of the invention An improvement on the one hand of an electronic paper display device with a light source, which is an LED that displays a single color or color temperature. In this way, by displaying LED crossover settings of different colors or color temperatures, the user can select LEDs of different colors or color temperatures for display.
作为本发明一种带光源的电子纸显示装置一方面的改进，所述光源 单元 为用于显示单一颜色 或色温 的LED灯芯，两种或两种以上颜色的LED灯芯组合一起构成一体的彩色LED。 这样通过设置可以显示不同颜色或色温的彩色LED，利用 彩色LED的排布致使显示不同颜色的LED灯芯的 交叉设置，用户可以根据需要选择不同颜色的 LED 灯芯 进行显示。As an improvement of an electronic paper display device with a light source according to the present invention, the light source unit is for displaying a single color or color temperature The LED wick, the combination of two or more color LED wicks together form an integrated color LED. This is done by setting a color LED that can display different colors or color temperatures. The arrangement of the colored LEDs causes the crossover settings of the LED wicks of different colors to be displayed, and the user can select LED wicks of different colors for display as needed.
作为本发明一种 带光源的电子纸显示装置一方面的改进，同一种颜色或色温的光源单元串联，并与一驱动电路串联构成电路回路。 这样，每组同一种颜色 或色温 的光源 单元 由独立的一个驱动电路驱动，通过控制各个驱动电路来控制各组不同颜色 或色温 的光源 单元 的工作。As a kind of the invention An electronic paper display device with a light source is improved on the one hand, in series with a light source unit of the same color or color temperature, and in series with a drive circuit to form a circuit loop. Thus, each group of light sources with the same color or color temperature Driven by a separate drive circuit, each group of different color or color temperature source units is controlled by controlling each drive circuit.
作为本发明一种 带光源的电子纸显示装置一方面的改进，同一种颜色或色温的光源单元依次串联连接后与选择开关串联构成电路支路，各电路支路并联后与所述驱动电路相连构成电路回路，所述驱动电路包括与各电路支路相连且用于选择控制各电路支路导通的选择开关。 这样通过选择开关控制某同一种颜色 或色温 的光源 单元 与驱动电路相连导通，当然也可以同时控制两种或两种以上颜色 或色温 的光源 单元 与驱动电路相连导通。As a kind of the invention On the one hand, the electronic paper display device with the light source is improved on the one hand, the light source units of the same color or color temperature are sequentially connected in series, and then connected in series with the selection switch to form a circuit branch, and the circuit branches are connected in parallel and connected with the drive circuit to form a circuit loop. The drive circuit includes a selection switch coupled to each circuit branch for selectively controlling the conduction of each circuit branch. In this way, the light source unit of the same color or color temperature is controlled to be connected to the driving circuit through the selection switch, and of course, the light source unit of two or more colors or color temperatures can be simultaneously controlled. Connected to the drive circuit.
作为本发明一种 带光源的电子纸显示装置一方面的改进，所述驱动电路为输出电流电流值可调的驱动电路。 这样可以通过调节电流值以控制光源 单元 光线的强度。As an improvement of the electronic paper display device with a light source of the present invention, the driving circuit is a driving circuit whose output current and current value are adjustable. This allows you to control the intensity of the light from the source unit by adjusting the current value.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 所述导光板厚度为0.2-2mm。这样的厚度有利于使光学效果达到最佳。An improvement on the one hand of an electronic paper display device with a light source as the present invention, The light guide plate has a thickness of 0.2-2 mm. Such a thickness is advantageous for optimizing the optical effect.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 所述导光板为材质是PMMA （英文名：polymethylmethacrylate；中文名：聚甲基丙烯酸甲酯） 或PC （中文名：聚碳酸酯） 的导光板。 该聚碳酸酯(简称PC)是分子链中含有碳酸酯基的高分子聚合物，根据酯基的结构可分为脂肪族、芳香族、脂肪族-芳香族等多种类型。As an improvement of the electronic paper display device with a light source of the present invention, the light guide plate is made of PMMA. (English name: polymethylmethacrylate; Chinese name: polymethyl methacrylate) or PC (Chinese name: polycarbonate) light guide plate. The polycarbonate (abbreviated as PC) is a polymer having a carbonate group in a molecular chain, and can be classified into aliphatic, aromatic, or aliphatic-aromatic types depending on the structure of the ester group.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 所述导光板上设有凹点和\或凸点的光点。As an improvement of the electronic paper display device with a light source of the present invention, the light guide plate is provided with pits and/or bump spots.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 所述光点的直径为1-100 μ m 。As an improvement of the electronic paper display device with a light source of the present invention, the spot has a diameter of 1-100 μm.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 所述光点设置成为将导光板中的光线折射向所述电子纸显示模组显示面上的光点。这是将所述光点的形状、大小、位置以及设置方向都设置成有利于将导光板中的光线折射向所述电子纸显示模组显示面上。An improvement on the one hand of an electronic paper display device with a light source as the present invention, The spot is disposed to refract light in the light guide plate to a spot on the display surface of the electronic paper display module. This is to set the shape, size, position and setting direction of the light spot to facilitate refracting light in the light guide plate toward the display surface of the electronic paper display module.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 所述光点在所述导光板上按照距离所述光源 单元 越远设置越密集的方式设置。这样会使更多的光线往下折射，以补偿导光板中离光源越远光线越弱，使射向电子纸显示装置整个显示面光线均匀。An improvement of an electronic paper display device with a light source as an aspect of the present invention, wherein the light spot is on the light guide plate according to a distance from the light source unit The farther the setting is, the more dense the way to set it up. This will cause more light to be refracted downward to compensate for the weaker the light from the light source in the light guide plate, so that the light is evenly distributed to the entire display surface of the electronic paper display device.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 所述导光板通过第一透明光学胶贴附在所述电子纸显示模组上，这样有利于导光板的固定，减少光线通过两层光学媒质之间的界面反射，提高清晰度。An improvement on the one hand of an electronic paper display device with a light source as the present invention, The light guide plate is attached to the electronic paper display module through a first transparent optical adhesive. This facilitates the fixing of the light guide plate, reduces light reflection through the interface between the two optical media, and improves the definition.
作为本发明一种 带光源的电子纸显示装置一方面的改进， 其还包括贴附在所述导光板上的防反防眩保 护膜。该防反防眩保护膜用于减少反射，使更多的光进去，起到防止镜面反射，改善阅读效果；同时可以保护导光板以免刮花。An improvement of an electronic paper display device with a light source as an aspect of the present invention, further comprising an anti-anti-glare protection attached to the light guide plate Protective film. The anti-anti-glare protective film is used for reducing reflection, allowing more light to enter, preventing specular reflection and improving reading effect, and protecting the light guide plate from scratching.
作为本发明一种带光源的电子纸显示装置一方面的改进，所述防反防眩保护膜通过第二透明光学胶贴附在所述导光板上，这样防止防反防眩保护膜脱落或翘起。As an improvement of the electronic paper display device with a light source of the present invention, the anti-anti-glare protective film is attached to the light guide plate by a second transparent optical adhesive, thereby preventing the anti-anti-glare protective film from falling off or Lift up.
作为本发明一种 带光源的电子纸显示装置一方面的改进，所述透明光学胶采用固态OCA或液体OCA光学胶（Optical Clear Adhesive）材料。As a kind of the invention An improvement on the one hand of an electronic paper display device with a light source using a solid OCA or a liquid OCA Optical Clear Adhesive material.
作为本发明一种 带光源的电子纸显示装置一方面的改进，所述电子纸显示模组上设置有电容触摸组件，所述电容触摸组件包括电容触摸板或膜层、在电容触摸板或膜层上的电容触摸线路层。As a kind of the invention An electronic paper display device with a light source is provided on the one hand, and the electronic paper display module is provided with a capacitive touch component including a capacitive touch panel or a film layer, a capacitive touch on the capacitive touch panel or the film layer Line layer.
本发明所述的电子纸显示装置属于为反射型阅读器，区别于发散型显示设备，电子纸显示装置本身不发光，但由于 设置有前光, 可以自己发光，所以即使在光线暗淡或黑暗的条件下也 可以正常使用。当环境光足够强时， 所述的电子纸显示装置 可以关闭前光使用The electronic paper display device of the present invention belongs to a reflective reader, which is different from the divergent display device, and the electronic paper display device itself does not emit light, but It is equipped with a front light and can emit light by itself, so it can be used normally even under dim or dark conditions. When the ambient light is strong enough, the electronic paper display device can turn off the front light use
本发明所述光源单元不但可以为例如白、黄、蓝、红、绿、黑等颜色的不同的光源单元，还可以为不同色温的光源单元。所述色温（colo(u)r temperature ）是表示光源光色的尺度，单位为K（开尔文）。色温是按绝对黑体来定义的，光源的辐射在可见区和绝对黑体的辐射完全相同时，此时黑体的温度就称此光源的色温。低色温光源的特征是能量分布中，红辐射相对说要多些，通常称为'暖光'；色温提高后，能量分布中，蓝辐射的比例增加，通常称为'冷光'。一些常用光源的色温为：标准烛光为1930K（开尔文温度单位）；钨丝灯为2760-2900K；荧光灯为3000K；闪光灯为3800K；中午阳光为5600K；电子闪光灯为6000K；蓝天为12000-18000K。The light source unit of the present invention may not only be different light source units of colors such as white, yellow, blue, red, green, black, but also light source units of different color temperatures. The color temperature (colo(u)r Temperature ) is the scale indicating the color of the light source, and the unit is K (Kelvin). The color temperature is defined by the absolute black body. When the radiation of the light source is exactly the same in the visible region and the absolute black body, the temperature of the black body is called the color temperature of the light source. The characteristic of low color temperature light source is that the red radiation is relatively more in the energy distribution, which is usually called 'warm light'; after the color temperature is increased, the proportion of blue radiation increases in the energy distribution, which is usually called 'cold light'. The color temperature of some common light sources is: standard candlelight is 1930K (Kelvin temperature unit); tungsten filament lamp is 2760-2900K; fluorescent lamp is 3000K; flashlight is 3800K; noon sunlight is 5600K; electronic flash is 6000K; blue sky is 12000-18000K.
下面结合附图详细说明本发明,其作为本说明书的一部分,通过实施例来说明本发明的原理，本发明的其他方面、特征及其优点通过该详细说明将会变得一目了然。The present invention will be described in detail with reference to the accompanying drawings in which, FIG.
附图说明 DRAWINGS
图1为本发明一种带光源的电子纸显示装置在第一实施例中纵向截面示意图。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a longitudinal cross-sectional view showing an electronic paper display device with a light source in a first embodiment of the present invention.
图2为图1中一种带光源的电子纸显示装置横向截面图。 2 is a transverse cross-sectional view of an electronic paper display device with a light source of FIG. 1.
图3为图1中一种带光源的电子纸显示装置中的前光源组的电路原理图。 3 is a circuit schematic diagram of a front light source group in the electronic paper display device with a light source of FIG. 1.
图4为本发明一种带光源的电子纸显示装置在第二实施例中的前光源组的电路原理图。 4 is a circuit schematic diagram of a front light source group in a second embodiment of an electronic paper display device with a light source according to the present invention.
图5为本发明一种带光源的电子纸显示装置在第三实施例中纵向截面示意图。 Figure 5 is a longitudinal cross-sectional view showing a third embodiment of an electronic paper display device with a light source according to the present invention.
图6为图5中一种带光源的电子纸显示装置横向截面图。 Figure 6 is a transverse cross-sectional view of the electronic paper display device with a light source of Figure 5.
图7为本发明一种带光源的电子纸显示装置在第四实施例中纵向截面示意图。 Figure 7 is a longitudinal cross-sectional view showing a fourth embodiment of an electronic paper display device with a light source according to the present invention.
图8为本发明一种带光源的电子纸显示装置在第五实施例中纵向截面示意图。 Figure 8 is a longitudinal cross-sectional view showing an electronic paper display device with a light source in a fifth embodiment of the present invention.
图9为图8中一种带光源的电子纸显示装置中的前光源组的电路原理图。 9 is a circuit schematic diagram of a front light source group in an electronic paper display device with a light source of FIG.
图10为本发明一种带光源的电子纸显示装置在第六实施例中的前光源组的电路原理图。 Figure 10 is a circuit schematic diagram of a front light source group in a sixth embodiment of an electronic paper display device with a light source according to the present invention.
图11为本发明一种带光源的电子纸显示装置在第七实施例中的纵向截面示意图。 Figure 11 is a longitudinal cross-sectional view showing an electronic paper display device with a light source in a seventh embodiment of the present invention.
图12为本发明一种带光源的电子纸显示装置的驱动电路在一个实施例中的电路图。Figure 12 is a circuit diagram of a driving circuit of an electronic paper display device with a light source in one embodiment of the present invention.
具体实施方式 Detailed ways
实施例一Embodiment 1
参考图1-3，图1为本发明一种带光源的电子纸显示装置在第一实施例中纵向截面示意图；图2为图1中一种带光源的电子纸显示装置横向截面图；图3为图1中一种带光源的电子纸显示装置电路原理图。1-3, FIG. 1 is a longitudinal cross-sectional view of an electronic paper display device with a light source in a first embodiment; FIG. 2 is a transverse cross-sectional view of an electronic paper display device with a light source in FIG. 3 is a schematic circuit diagram of an electronic paper display device with a light source in FIG.
本实施例中一种带光源的电子纸显示装置包括电子纸显示模组101、第一透明光学胶102、导光板103、前光源组104。In the embodiment, an electronic paper display device with a light source includes an electronic paper display module 101, a first transparent optical adhesive 102, a light guide plate 103, and a front light source group 104.
所述电子纸显示模组101为电泳显示模组，该电泳显示模组由一种液态材料的电子墨水印刷于某一基板上。在这种液态材料中悬浮着成百上千个与人类发丝直径差不多大小的微囊体，每个微囊体由正电荷粒子或负电荷粒子和中性粒子组成；或，正电荷粒子和负电荷粒子组成。只要采取一定的工艺就能将这种电子墨水印刷到基板上。若微囊体内是正电荷粒子或负电荷粒子和中性粒子，当微囊体两端被施加一个正或负电场的时候，控制带电粒子在电场的作用下移动，而中性粒子不移动实现显示。若微囊体内是正电荷粒子和负电荷粒子，当微囊体两端被施加一个负电场的时候，带有正电荷的白色粒子在电场的作用下移动到电场负极，与此同时，带有负电荷的粒子移动到微囊体的底部 ' 隐藏 ' 起来，这时表面会显示白色。当相邻的微囊体两侧被施加一个正电场时，黑色粒子会在电场的作用下移动到微囊体的顶部，这时表面就显现为黑色。The electronic paper display module 101 is an electrophoretic display module, and the electrophoretic display module is printed on a certain substrate by electronic ink of a liquid material. In this liquid material, there are hundreds of microcapsules of the same size as the diameter of the human hair, each microcapsule consisting of positively charged particles or negatively charged particles and neutral particles; or, positively charged particles and Composition of negatively charged particles. This electronic ink can be printed onto the substrate by a certain process. If the microcapsules are positively charged particles or negatively charged particles and neutral particles, when a positive or negative electric field is applied to both ends of the microcapsule, the charged particles are controlled to move under the action of the electric field, and the neutral particles do not move to realize the display. . If the microcapsules are positively charged particles and negatively charged particles, when a negative electric field is applied across the microcapsules, the positively charged white particles move to the negative electrode of the electric field under the action of the electric field, and at the same time, with negative Charged particles move to the bottom of the microcapsule 'Hide', then the surface will show white. When a positive electric field is applied to both sides of the adjacent microcapsules, the black particles move to the top of the microcapsules under the action of the electric field, and the surface appears black.
所述第一透明光学胶102用于将所述导光板103贴附于所述电子纸显示模组101的显示面一侧。所述第一透明光学胶102可采用固态OCA或液体OCA光学胶（Optical Clear Adhesive）材料。该第一透明光学胶102需要较好的透光性能。The first transparent optical adhesive 102 is used to attach the light guide plate 103 to the display surface side of the electronic paper display module 101. The first transparent optical adhesive 102 can adopt solid OCA or liquid OCA optical adhesive (Optical) Clear Adhesive) material. The first transparent optical adhesive 102 requires better light transmission properties.
所述导光板103相邻设置于电子纸显示模组101周边，即通过第一透明光学胶102贴附于所述电子纸显示模组101的显示面一侧。该导光板103的形状与电子纸显示模组101显示面一侧的形状相适配。所述导光板103厚度为0.2至2mm，这样的厚度有利于使光学效果达到最佳。所述导光板的材质采用光透过率良好PMMA（英文名：polymethylmethacrylate；中文名：聚甲基丙烯酸甲酯）或PC（中文名：聚碳酸酯）材料，该聚碳酸酯(简称PC)是分子链中含有碳酸酯基的高分子聚合物，根据酯基的结构可分为脂肪族、芳香族、脂肪族-芳香族等多种类型。在环境光充足下不打开光源的情况，导光板103、第一透明光学胶102不会影响电子纸显示装置的阅读。The light guide plate 103 is disposed adjacent to the periphery of the electronic paper display module 101, that is, attached to the display surface side of the electronic paper display module 101 by the first transparent optical adhesive 102. The shape of the light guide plate 103 is adapted to the shape of the display surface side of the electronic paper display module 101. The light guide plate 103 has a thickness of 0.2 to 2 mm, and such a thickness is advantageous for optimizing the optical effect. The material of the light guide plate is made of PMMA (English name: polymethylmethacrylate; Chinese name: polymethyl methacrylate) or PC (Chinese name: polycarbonate) material, and the polycarbonate (referred to as PC) is A polymer having a carbonate group in a molecular chain can be classified into aliphatic, aromatic, or aliphatic-aromatic types depending on the structure of the ester group. When the light source is not turned on under sufficient ambient light, the light guide plate 103 and the first transparent optical adhesive 102 do not affect the reading of the electronic paper display device.
所述导光板103上设有凹点和\或凸点的光点。所述光点的直径为1-100 μ m ，具体可以采用1 μ m 、5 μ m 、10 μ m 、20 μ m 、30 μ m 、40 μ m 、50 μ m 、60 μ m 、70 μ m 、80 μ m 、90 μ m 或100 μ m 等，这样人眼看不到或很难发现该光点。所述光点设置成为将导光板103中的光线折射向所述电子纸显示模组101显示面上的光点，即通过将所述光点的形状、大小、位置以及设置方向都设置成有利于将导光板中的光线折射向所述电子纸显示模组显示面上。所述光点在所述导光板103上按照距离所述光源越远设置越密集的方式设置，这样会使更多的光线往下折射，以补偿导光,103中离光源越远光线越弱，使射向电子纸显示装置整个显示面的光线均匀。The light guide plate 103 is provided with spots of pits and/or bumps. The spot diameter is 1-100 μ m, and specifically 1 μ m , 5 μm, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm Or 100 μm Wait, so the human eye can't see or find the spot. The light spot is disposed to refract light in the light guide plate 103 toward a light spot on the display surface of the electronic paper display module 101, that is, by setting the shape, size, position, and setting direction of the light spot to have The light in the light guide plate is refracted toward the display surface of the electronic paper display module. The light spot is disposed on the light guide plate 103 in a dense manner according to the distance from the light source, so that more light is refracted downward to compensate for the light guide. The farther away from the light source, the weaker the light is. The light that is directed to the entire display surface of the electronic paper display device is uniform.
所述前光源组104相邻设置于导光板103侧面，该前光源组104用于在采光环境较差的时候提供光源供用户阅读电子纸显示装置。The front light source group 104 is disposed adjacent to the side of the light guide plate 103. The front light source group 104 is configured to provide a light source for the user to read the electronic paper display device when the lighting environment is poor.
所述前光源组104包括两种或两种以上不同颜色的光源单元、驱动该光源单元的驱动电路，不同颜色的光源单元交叉设置。本实施例中的前光源组104包括两种颜色的光源单元即第一颜色光源单元105和第二颜色光源单元106。所述第一颜色光源单元105和第二颜色光源单元106分别用于显示两种不同颜色的光源，也可以是不同色温的光源。所述第一颜色光源单元105和第二颜色光源单元106分别可以一个或多个光源单元，本实施例中为多个光源单元，一般采用多个光源单元，多个光源单元的均匀分布有利于电子纸显示组件显示面上光线的均匀。多个所述第一颜色光源单元105和第二颜色光源单元106交错均匀排列，使两种颜色光线混合均匀，数量可以设置成相等或不相等。The front light source group 104 includes two or more light source units of different colors, a driving circuit for driving the light source unit, and light source units of different colors are disposed at intersection. The front light source group 104 in this embodiment includes two color light source units, that is, a first color light source unit 105 and a second color light source unit 106. The first color light source unit 105 and the second color light source unit 106 are respectively used to display two different colors of light sources, and may also be light sources of different color temperatures. The first color light source unit 105 and the second color light source unit 106 may respectively be one or more light source units. In this embodiment, a plurality of light source units are generally used, and a plurality of light source units are generally used. The electronic paper display assembly displays uniform light on the surface. A plurality of the first color light source unit 105 and the second color light source unit 106 are alternately arranged in a staggered manner so that the two colors of light are uniformly mixed, and the number can be set to be equal or unequal.
所述第一颜色光源单元105和第二颜色光源单元106采用发单一颜色光的LED灯，其具有功耗低、体积小、厚度薄、重量轻、寿命长优点。The first color light source unit 105 and the second color light source unit 106 use an LED light emitting a single color light, which has the advantages of low power consumption, small volume, thin thickness, light weight, and long life.
所述前光源组104采用多个超薄、侧出光的LED灯焊接在超薄的柔性电路板FPC上，使整个光源的厚度很薄，范围0.2至1mm，具体可采用0.2mm、0.3mm、0.5mm、0.6mm、0.8mm或1mm等。所述第一颜色光源单元105和第二颜色光源单元106分别通过柔性电路板FPC连接到驱动电路。The front light source group 104 is soldered on the ultra-thin flexible circuit board FPC by using a plurality of ultra-thin, side-emitting LED lamps, so that the thickness of the entire light source is very thin, ranging from 0.2 to 1 mm, specifically 0.2 mm, 0.3 mm, 0.5 mm, 0.6 mm, 0.8 mm or 1 mm, etc. The first color light source unit 105 and the second color light source unit 106 are respectively connected to the driving circuit through the flexible circuit board FPC.
如图3所示，多个所述第一颜色光源单元105相互串联并串联连接一个驱动电路110构成一个电路回路。多个所述第二颜色光源单元106相互串联并串联连接一个驱动电路111构成一个电路回路。所述驱动电路110和驱动电路111均可采用DC-DC升压恒流源，可以输出恒定的电流。图12为本发明一种带光源的电子纸显示装置的驱动电路在一个实施例中的电路图。参考图12，所述驱动电路110和驱动电路111分别可以是一个集成IC，例如TPS61160，该集成IC可以通过外部PWM波形的占空比来控制恒流源的电流值，用以控制第一颜色光源单元105、第二颜色光源单元106发光强度。As shown in FIG. 3, a plurality of the first color light source units 105 are connected in series to each other and connected in series to form a circuit circuit. A plurality of said second color light source units 106 are connected in series to each other and connected in series to a drive circuit 111 to constitute a circuit loop. Both the driving circuit 110 and the driving circuit 111 can adopt a DC-DC boosting constant current source, and can output a constant current. Figure 12 is a circuit diagram of a driving circuit of an electronic paper display device with a light source in one embodiment of the present invention. Referring to FIG. 12, the driving circuit 110 and the driving circuit 111 may respectively be an integrated IC, such as a TPS61160, which can control the current value of the constant current source by the duty ratio of the external PWM waveform to control the first color. The light source unit 105 and the second color light source unit 106 emit light intensity.
通过控制选择控制驱动电路110和\或驱动电路111第一颜色光源单元105和\或第二颜色光源单元106的发光；且第一颜色光源单元105和第二颜色光源单元106均可以通过其电路回路中的电流调节器调节其发光的强度，甚至减少至关闭熄灭。这样可以获得不同颜色、不同光强的光，扩大光的颜色可选择范围，满足不同人的需要，改善阅读效果。The illumination of the first color light source unit 105 and/or the second color light source unit 106 is controlled by the control selection drive circuit 110 and/or the drive circuit 111; and both the first color light source unit 105 and the second color light source unit 106 can pass through the circuit thereof The current regulator in the loop adjusts the intensity of its illumination, even down to off. In this way, light of different colors and different light intensities can be obtained, and the color selection range of the light can be expanded to meet the needs of different people and improve the reading effect.
实施二Implementation two
参考图4，图4为本发明一种带光源的电子纸显示装置在第二实施例中的前光源组的电路原理图。在实施例一的基础上，本实施例与实施例一不同的是：多个发同一种颜色光的第一颜色光源单元105相互串联组成第一电路支路；多个发同一种颜色光的第二颜色光源单元106相互串联组成第二电路支路。所述第一电路支路与第二电路支路并联后与驱动电路100相连构成电路回路。所述驱动电路包括与各电路支路相连且用于选择控制各电路支路导通的选择开关、调节驱动电路输出电流电流值的电流调节器，这样可以通过选择开关控制第一颜色光源单元105和\或第二颜色光源单元106与驱动电路单元100相连导通，同时实现了一个驱动电路可以用于驱动第一颜色光源单元105和\或第二颜色光源单元106。另外所述第一颜色光源单元105和第二颜色光源单元106可以通过电流调节器调节驱动电路输出的电流值来控制其发光的强度。Referring to FIG. 4, FIG. 4 is a circuit schematic diagram of a front light source group in a second embodiment of an electronic paper display device with a light source according to the present invention. On the basis of the first embodiment, the first embodiment differs from the first embodiment in that a plurality of first color light source units 105 emitting the same color light are connected in series to form a first circuit branch; a plurality of light emitting the same color The second color light source units 106 are connected in series to each other to form a second circuit branch. The first circuit branch is connected in parallel with the second circuit branch and connected to the driving circuit 100 to form a circuit loop. The driving circuit includes a selection switch connected to each circuit branch for selecting and controlling the conduction of each circuit branch, and a current regulator for adjusting the output current and current value of the driving circuit, so that the first color light source unit 105 can be controlled by the selection switch. And or the second color light source unit 106 is connected to the driving circuit unit 100, and at the same time, a driving circuit can be used for driving the first color light source unit 105 and/or the second color light source unit 106. In addition, the first color light source unit 105 and the second color light source unit 106 may control the intensity of the light emission by adjusting the current value output by the driving circuit through the current regulator.
实施例三Embodiment 3
图5为本发明一种带光源的电子纸显示装置在第三实施例中纵向截面示意图；图6为图5中一种带光源的电子纸显示装置横向截面图。5 is a longitudinal cross-sectional view of an electronic paper display device with a light source in a third embodiment; FIG. 6 is a transverse cross-sectional view of the electronic paper display device with a light source in FIG.
本实施例可以是在与实施例一或实施例二的基础上进行的改进，在实施例一或实施例二的基础上增加了防反防眩保护膜108。即在导光板103上直接贴附可以更换的防反防眩保护膜108。该防反防眩保护膜108可以减少反射，使更多的光进去；同时可以防止镜面反射，改善阅读效果；另外可以保护导光板以免刮花。The embodiment may be improved on the basis of the first embodiment or the second embodiment, and the anti-anti-glare protective film 108 is added on the basis of the first embodiment or the second embodiment. That is, the replaceable anti-anti-glare protective film 108 is directly attached to the light guide plate 103. The anti-anti-glare protection film 108 can reduce reflection and allow more light to enter; at the same time, it can prevent specular reflection and improve reading effect; and can protect the light guide plate from scratching.
实施例四Embodiment 4
图7为本发明一种带光源的电子纸显示装置在第四实施例中纵向截面示意图。本实施例可以是在与实施例三的基础上进行的改进，在实施例三的基础上增加了第二透明光学胶109，所述防反防眩保护膜108通过第二透明光学胶109粘附在所述导光板103上，这样可以防止防反防眩保护膜108脱落或翘起。所述第二透明光学胶109可采用固态OCA或液体OCA光学胶（Optical Clear Adhesive）材料。该第二透明光学胶109需要较好的透光性能。Figure 7 is a longitudinal cross-sectional view showing a fourth embodiment of an electronic paper display device with a light source according to the present invention. This embodiment may be an improvement on the basis of the third embodiment. On the basis of the third embodiment, a second transparent optical adhesive 109 is added. The anti-anti-glare protective film 108 is adhered by the second transparent optical adhesive 109. It is attached to the light guide plate 103, so that the anti-anti-glare protective film 108 can be prevented from falling off or lifting. The second transparent optical adhesive 109 can adopt solid OCA or liquid OCA optical adhesive (Optical) Clear Adhesive) material. The second transparent optical adhesive 109 requires better light transmission properties.
实施例五Embodiment 5
图8为本发明一种带光源的电子纸显示装置在第五实施例中纵向截面示意图；图9为图8中一种带光源的电子纸显示装置电路原理图。8 is a longitudinal cross-sectional view of an electronic paper display device with a light source in a fifth embodiment; FIG. 9 is a circuit schematic diagram of an electronic paper display device with a light source in FIG.
本实施例在实施例一的基础上进行的改进，在实施例一的基础上，所述前光源组104多包括一种颜色的光源单元，即包括第一颜色光源单元105、第二颜色光源单元106和第三颜色光源单元107。所述第一颜色光源单元105、第二颜色光源单元106和第三颜色光源单元107为分别用于显示三种不同颜色的光源，也可以是不同色温的光源。所述第一颜色光源单元105、第二颜色光源单元106和第三颜色光源单元107分别可以包括一个或多个光源单元，本实施例中为多个光源单元，一般采用多个光源单元，多个光源单元的均匀分布有利于电子纸显示组件显示面上光线的均匀。多个所述第一颜色光源单元105、第二颜色光源单元106和第三颜色光源单元107交错均匀排列，使两种颜色光线混合均匀，数量可以设置成相等或不相等。The improvement of the first embodiment is based on the first embodiment. The front light source group 104 includes a light source unit of one color, that is, includes a first color light source unit 105 and a second color light source. Unit 106 and third color light source unit 107. The first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 are light sources for displaying three different colors, respectively, and may also be light sources of different color temperatures. The first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 may respectively include one or more light source units. In this embodiment, a plurality of light source units are generally used, and a plurality of light source units are generally used. The uniform distribution of the light source units facilitates uniformity of light on the display surface of the electronic paper display assembly. A plurality of the first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 are alternately arranged in a staggered manner so that the two colors of light are uniformly mixed, and the number may be set to be equal or unequal.
如图9所示，多个所述第一颜色光源单元105相互串联并串联连接一个驱动电路110构成一个电路回路。多个所述第二颜色光源单元106相互串联并串联连接一个驱动电路111构成一个电路回路。多个所述第三颜色光源单元107相互串联并串联连接一个驱动电路112构成一个电路回路。所述驱动电路110、驱动电路111和驱动电路112均可采用DC-DC升压恒流源，可以输出恒定的电流。参考图12，图12为本发明一种带光源的电子纸显示装置的驱动电路在一个实施例中的电路图。所述驱动电路110、驱动电路111和驱动电路112分别可以是一个集成IC，例如TPS61160，该集成IC可以通过外部PWM波形的占空比来控制恒流源的电流值，用以控制第一颜色光源单元105、第二颜色光源单元106、第三颜色光源单元107发光强度。As shown in FIG. 9, a plurality of the first color light source units 105 are connected in series to each other and connected in series to form a circuit circuit. A plurality of said second color light source units 106 are connected in series to each other and connected in series to a drive circuit 111 to constitute a circuit loop. A plurality of the third color light source units 107 are connected in series to each other and connected in series to one drive circuit 112 to constitute one circuit loop. The driving circuit 110, the driving circuit 111 and the driving circuit 112 can all adopt a DC-DC boosting constant current source, and can output a constant current. Referring to FIG. 12, FIG. 12 is a circuit diagram of a driving circuit of an electronic paper display device with a light source in one embodiment of the present invention. The driving circuit 110, the driving circuit 111 and the driving circuit 112 may respectively be an integrated IC, such as a TPS61160, which can control the current value of the constant current source by the duty ratio of the external PWM waveform to control the first color. The light source unit 105, the second color light source unit 106, and the third color light source unit 107 emit light intensity.
通过控制所述驱动电路110和\或驱动电路111和\或驱动电路112来选择第一颜色光源单元105和\或第二颜色光源单元106和\或第三颜色光源单元107的发光；且第一颜色光源单元105、第二颜色光源单元106和第三颜色光源单元107均可以通过驱动电路调节输出电流的电流值来调节其发光的强度，甚至减少至关闭熄灭。这样可以获得不同颜色、不同光强的光，扩大光的颜色可选择范围，满足不同人的需要，改善阅读效果。Selecting the illumination of the first color light source unit 105 and/or the second color light source unit 106 and/or the third color light source unit 107 by controlling the drive circuit 110 and/or the drive circuit 111 and/or the drive circuit 112; Each of the one color light source unit 105, the second color light source unit 106, and the third color light source unit 107 can adjust the intensity of the light emitted by the drive circuit to adjust the intensity of the light output, even to the turn-off. In this way, light of different colors and different light intensities can be obtained, and the color selection range of the light can be expanded to meet the needs of different people and improve the reading effect.
实施例六Embodiment 6
参考图10，图10为本发明一种带光源的电子纸显示装置在第六实施例中的前光源组的电路原理图。在实施例五的基础上，本实施例与实施例五不同的是：多个发同一种颜色光的第一颜色光源单元105相互串联组成第一电路支路；多个发同一种颜色光的第二颜色光源单元106相互串联组成第二电路支路。多个发同一种颜色光的第三颜色光源单元107相互串联组成第三电路支路。所述第一电路支路、第二电路支路和第三电路支路并联后与驱动电路100相连构成电路回路。所述驱动电路包括与各电路支路相连且用于选择控制各电路支路导通的选择开关、调节驱动电路输出电流电流值的电流调节器，这样可以通过选择开关控制第一颜色光源单元105和\或第二颜色光源单元106和\或第三颜色光源单元107与驱动电路相连导通，同时实现了一个驱动电路100可以用于驱动第一颜色光源单元105和\或第二颜色光源单元106和\或第三颜色光源单元107。另外所述第一颜色光源单元105、第二颜色光源单元106和第三颜色光源单元107均可以通过电流调节器调节驱动电路100输出的电流值用以控制其发光的强度。Referring to FIG. 10, FIG. 10 is a circuit schematic diagram of a front light source group in a sixth embodiment of an electronic paper display device with a light source according to the present invention. On the basis of the fifth embodiment, the embodiment is different from the fifth embodiment in that a plurality of first color light source units 105 emitting the same color light are connected in series to form a first circuit branch; a plurality of light emitting the same color The second color light source units 106 are connected in series to each other to form a second circuit branch. A plurality of third color light source units 107 that emit light of the same color are connected in series to each other to form a third circuit branch. The first circuit branch, the second circuit branch and the third circuit branch are connected in parallel and connected to the driving circuit 100 to form a circuit loop. The driving circuit includes a selection switch connected to each circuit branch for selecting and controlling the conduction of each circuit branch, and a current regulator for adjusting the output current and current value of the driving circuit, so that the first color light source unit 105 can be controlled by the selection switch. And the second color light source unit 106 and/or the third color light source unit 107 are connected to the driving circuit, and at the same time, one driving circuit 100 can be used to drive the first color light source unit 105 and/or the second color light source unit. 106 and / or a third color light source unit 107. In addition, the first color light source unit 105, the second color light source unit 106, and the third color light source unit 107 may each adjust a current value output by the driving circuit 100 through a current regulator to control the intensity of the light emission thereof.
实施例七Example 7
图11为本发明一种带光源的电子纸显示装置在第七实施例中纵向截面示意图。Figure 11 is a longitudinal cross-sectional view showing a seventh embodiment of an electronic paper display device with a light source according to the present invention.
本实施例可以是在上述实施例的基础上进行的改进，与上述实施例的区别在于所述前光源组104包括两种或两种以上不同颜色的光源单元，不同颜色的光源单元交叉设置。 所述光源 单元 为用于显示单一颜色的LED灯芯，两种或两种以上颜色的LED灯芯组合一起构成一体的彩色LED120。 这样通过设置可以显示不同颜色的彩色LED120，利用 彩色LED120的排布致使显示不同颜色的LED灯芯的 交叉设置，用户可以根据需要选择不同颜色的 LED 灯芯 进行显示。This embodiment may be an improvement based on the above embodiment, and is different from the above embodiment in that the front light source group 104 includes two or more light source units of different colors, and light source units of different colors are disposed at intersection. The light source unit is an LED wick for displaying a single color, and LED wicks of two or more colors are combined to form an integrated color LED 120. In this way, by setting the color LEDs 120 of different colors, the arrangement of the color LEDs 120 can be used to display the crossover settings of the LED wicks of different colors, and the user can select LEDs of different colors according to the needs. The wick is displayed.
所述彩色LED120可以是全彩LED，全彩LED采用白（包括冷白和暖白等不同色温的白光）、红（R）、绿（G）、蓝（B）四种基本颜色的LED灯芯。当然，所述彩色LED120也可以采用红（R）、绿（G）、蓝（B）三种基本颜色的LED灯芯，还可以是白、红（R）、绿（G）、蓝（B）四种基本颜色的LED灯芯中的任意两种的组合。这些LED灯芯可以以多种形式进行封装，封装成同一个LED中。The color LED 120 may be a full-color LED, and the full-color LED adopts white (including white light of different color temperatures such as cool white and warm white), red (R), green (G), and blue (B) four basic color LED wicks. . Of course, the color LED 120 can also adopt three basic color LED wicks of red (R), green (G), and blue (B), and can also be white, red (R), green (G), and blue (B). A combination of any two of the four basic color LED wicks. These LED wicks can be packaged in a variety of forms and packaged into the same LED.
所述彩色LED12 0 均匀分布有多个，多个彩色LED120中的同一颜色的LED灯芯串联，并与一个驱动电路相连构成一个回路。例如各个彩色LED120中的红色LED灯芯串联，并与一个驱动电路相连构成一个回路；各个 彩色LED120中的白色 LED 灯芯串联，并与一个驱动电路相连构成一个回路；这样，红色LED灯芯和白色LED灯芯通过不同的驱动电路来控制，用户可以根据需要控制各个驱动电路来选择不同颜色的LED灯芯发光，当然也可以控制两种或两种以上的LED灯芯发光。用户还可以通过驱动电路具有的输出电流电流值调节功能来控制调节LED灯芯发光的强度。例如，按光学三原色原理，所有颜色均可以用三原色红、绿、蓝按照一定强度比例混合出来，近似调出几乎所有人眼可见的光颜色，满足不同人的需要，改善阅读效果。The color LED 12 0 A plurality of evenly distributed LED wicks of the same color among the plurality of color LEDs 120 are connected in series and connected to a driving circuit to form a loop. For example, the red LED wicks in each color LED 120 are connected in series and connected to a driving circuit to form a loop; White LED in color LED120 The wicks are connected in series and connected to a driving circuit to form a loop; thus, the red LED wick and the white LED wick are controlled by different driving circuits, and the user can control each driving circuit to select different color LED wicks according to needs, of course, Control two or more LED wicks to illuminate. The user can also control the intensity of the LED illuminance by the output current and current value adjustment function of the drive circuit. For example, according to the principle of optical three primary colors, all colors can be mixed with three primary colors of red, green and blue according to a certain intensity ratio, which approximates the color of light visible to almost all human eyes, satisfies the needs of different people and improves the reading effect.
当然，在其他实施例中，多个所述彩色LED中同一颜色的LED灯芯串联构成一个电路支路，多个电路支路并联后与一个驱动电路相连构成一个电路回路，驱动电路包括与各电路支路相连且用于选择控制各电路支路导通的选择开关、调节驱动电路输出电流电流值的电流调节器。这样实现一个驱动电路控制多个 彩色LED的所有 LED 灯芯。用户可以通过选择开关控制不同颜色的LED灯芯发光，或控制两种或两种不同颜色的LED灯芯同时发光，还可以通过各电路支路上的电流调节器控制个颜色的LED灯芯发光强度。Of course, in other embodiments, the LED wicks of the same color among the plurality of color LEDs are connected in series to form a circuit branch, and the plurality of circuit branches are connected in parallel and connected to a driving circuit to form a circuit loop, and the driving circuit includes and the circuits. The branches are connected and used to select a selection switch that controls the conduction of each circuit branch, and a current regulator that adjusts the output current and current value of the drive circuit. This implements a single drive circuit to control multiple All LEDs of color LEDs Wick. The user can control the LED wicks of different colors by selecting the switch, or control the LED wicks of two or two different colors to emit light at the same time, and can also control the luminous intensity of the LED wicks of the respective colors through the current regulators on the circuit branches.
当然，在其他实施例中，所述不同颜色的光源单元不局限于包括例如白、黄、蓝、红、绿、黑等颜色的不同的光源单元，还应当包括不同色温之间的不同，即包括两种或两种以上不同色温的光源单元。所述色温（colo(u)r temperature ）是表示光源光色的尺度，单位为K（开尔文）。色温是按绝对黑体来定义的，光源的辐射在可见区和绝对黑体的辐射完全相同时，此时黑体的温度就称此光源的色温。低色温光源的特征是能量分布中，红辐射相对说要多些，通常称为'暖光'；色温提高后，能量分布中，蓝辐射的比例增加，通常称为'冷光'。一些常用光源的色温为：标准烛光为1930K（开尔文温度单位）；钨丝灯为2760-2900K；荧光灯为3000K；闪光灯为3800K；中午阳光为5600K；电子闪光灯为6000K；蓝天为12000-18000K。Of course, in other embodiments, the light source units of different colors are not limited to different light source units including colors such as white, yellow, blue, red, green, black, etc., and should also include differences between different color temperatures, ie, A light source unit comprising two or more different color temperatures. The color temperature (colo(u)r Temperature ) is the scale indicating the color of the light source, and the unit is K (Kelvin). The color temperature is defined by the absolute black body. When the radiation of the light source is exactly the same in the visible region and the absolute black body, the temperature of the black body is called the color temperature of the light source. The characteristic of low color temperature light source is that the red radiation is relatively more in the energy distribution, which is usually called 'warm light'; after the color temperature is increased, the proportion of blue radiation increases in the energy distribution, which is usually called 'cold light'. The color temperature of some common light sources is: standard candlelight is 1930K (Kelvin temperature unit); tungsten filament lamp is 2760-2900K; fluorescent lamp is 3000K; flashlight is 3800K; noon sunlight is 5600K; electronic flash is 6000K; blue sky is 12000-18000K.
当然，在其他实施例中，所述电子纸显示装置可以是具有电容触摸输入功能的电子纸显示装置，即在所述电子纸显示模组上设置电容触摸组件，所述电容触摸组件包括电容触摸板或膜层、在电容触摸板或膜层上的电容触摸线路层。Of course, in other embodiments, the electronic paper display device may be an electronic paper display device having a capacitive touch input function, that is, a capacitive touch component is disposed on the electronic paper display module, and the capacitive touch component includes a capacitive touch A plate or film layer, a capacitive touch line layer on a capacitive touch pad or film layer.
以上所揭露的仅为本发明的较佳实施例而已,当然不能以此来限定本发明之权利范围,因此依本发明申请专利范围所作的等同变化,仍属本发明所涵盖的范围。The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the scope of the present invention remain within the scope of the present invention.

Claims (17)

  1. 一种带光源的电子纸显示装置，其包括电子纸显示模组、相邻设置于电子纸显示模组周边的导光板、相邻设置于导光板侧面的前光源组，其特征在于所述前光源组包括两种或两种以上不同颜色和/或色温的光源单元、驱动该光源单元的驱动电路，不同颜色或色温的光源单元交叉设置。 An electronic paper display device with a light source, comprising an electronic paper display module, a light guide plate disposed adjacent to an periphery of the electronic paper display module, and a front light source group disposed adjacent to a side of the light guide plate, wherein the front The light source group includes two or more light source units of different colors and/or color temperatures, a driving circuit that drives the light source unit, and light source units of different colors or color temperatures are arranged in a cross.
  2. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述光源单元为显示单一颜色或色温的LED。 The electronic paper display device with a light source according to claim 1, wherein said light source unit is an LED that displays a single color or color temperature.
  3. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述光源单元为用于显示单一颜色或色温的LED灯芯，两种或两种以上颜色或色温的LED灯芯组合一起构成一体的彩色LED。 The electronic paper display device with light source according to claim 1, wherein said light source unit is an LED wick for displaying a single color or color temperature, and two or more LED wick combinations of color or color temperature are integrated together. Color LED.
  4. 如权利要求1所述带光源的电子纸显示装置，其特征在于同一种颜色或色温的光源单元串联，并与一所述驱动电路串联构成电路回路。 The electronic paper display device with a light source according to claim 1, wherein the light source unit of the same color or color temperature is connected in series, and is connected in series with a drive circuit to form a circuit loop.
  5. 如权利要求1所述带光源的电子纸显示装置，其特征在于同一种颜色或色温的光源单元依次串联连接构成电路支路，各电路支路并联后与所述驱动电路相连构成电路回路，所述驱动电路包括与各电路支路相连且用于选择控制各电路支路导通的选择开关。 The electronic paper display device with a light source according to claim 1, wherein the light source units of the same color or color temperature are sequentially connected in series to form a circuit branch, and the circuit branches are connected in parallel and connected to the drive circuit to form a circuit loop. The drive circuit includes a selection switch coupled to each circuit branch for selectively controlling the conduction of each circuit branch.
  6. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述驱动电路为输出电流电流值可调的驱动电路。 The electronic paper display device with a light source according to claim 1, wherein said driving circuit is a driving circuit whose output current and current value are adjustable.
  7. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述导光板厚度为0.2-2mm。 The electronic paper display device with a light source according to claim 1, wherein said light guide plate has a thickness of 0.2 to 2 mm.
  8. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述导光板为材质是PMMA或PC的导光板。 The electronic paper display device with a light source according to claim 1, wherein said light guide plate is a light guide plate made of PMMA or PC.
  9. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述导光板上设有凹点和\或凸点的光点。 The electronic paper display device with a light source according to claim 1, wherein said light guide plate is provided with pits and/or bump spots.
  10. 如权利要求9所述带光源的电子纸显示装置，其特征在于所述光点的直径为1-100 μ m 。 An electronic paper display device with a light source according to claim 9, wherein said spot has a diameter of from 1 to 100 μm.
  11. 如权利要求9所述带光源的电子纸显示装置，其特征在于所述光点设置成为将导光板中的光线折射向所述电子纸显示模组显示面上的光点。 An electronic paper display device with a light source according to claim 9, wherein said light spot is provided as a light spot for refracting light in the light guide plate toward a display surface of said electronic paper display module.
  12. 如权利要求9所述带光源的电子纸显示装置，其特征在于所述光点在所述导光板上按照距离所述光源单元越远设置越密集的方式设置。 An electronic paper display device with a light source according to claim 9, wherein said light spot is disposed on said light guide plate in such a manner that the distance from said light source unit is set to be denser.
  13. 如权利要求1所述带光源的电子纸显示装置，其特征在于其还包括贴附在所述导光板上的防反防眩保护膜。 The electronic paper display device with a light source according to claim 1, further comprising an anti-anti-glare protective film attached to said light guide plate.
  14. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述防反防眩保护膜 通过第二透明光学胶贴附在所述导光板上。 An electronic paper display device with a light source according to claim 1, wherein said anti-anti-glare protective film is attached to said light guide plate by a second transparent optical adhesive.
  15. 如权利要求1所述带光源的电子纸显示装置，其特征在于 所述 导光板通过第一透明光学胶贴附在所述电子纸显示模组上。 The electronic paper display device with a light source according to claim 1, wherein said light guide plate is attached to said electronic paper display module via a first transparent optical adhesive.
  16. 如权利要求14或15所述带光源的电子纸显示装置，其特征在于所述透明光学胶为固态OCA或液体OCA。 An electronic paper display device with a light source according to claim 14 or 15, wherein the transparent optical adhesive is a solid OCA or a liquid OCA.
  17. 如权利要求1所述带光源的电子纸显示装置，其特征在于所述电子纸显示模组上设置有电容触摸组件，所述电容触摸组件包括电容触摸板或膜层、在电容触摸板或膜层上的电容触摸线路层。 The electronic paper display device with light source according to claim 1, wherein the electronic paper display module is provided with a capacitive touch component, the capacitive touch component comprising a capacitive touch panel or a film layer, a capacitive touch panel or a film. A capacitive touch line layer on the layer.
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